<!-- PORTALSIM:BEGIN v1.0 portal-microsim-pass — batches 1-2 of the PORTAL_Hydrogen build; state=pending_deploy -->
## Master microsims — three.js
Ten three.js microsims built to the [[WT!Three_js_Microsim_Master_Class|Three.js Microsim Master
Class]] and its nine build gates, each paired with a newly written child article. Each carries its
target article's slug as its filename.
**Batch 1 runs outward from the single atom** — one atom → two atoms → molecular geometry → the
condensed extreme → the cosmic probe. **Batch 2 is hydrogen at work** — proton transport in water,
industrial catalysis, the energy round trip, and where the element actually sits in the Galaxy.
> <!-- MICROSIM:PENDING_DEPLOY -->
> **Staged, ready to deploy.** All ten files are in `_3d_deploy_stage/` and pass all nine gates
> locally. They are quarantined as placeholders rather than left to render a 404, per the Master
> Class deploy rule, and go live on the next Netlify drop.
<ul class="microsim-gallery">
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Hydrogen_atom.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Hydrogen atom — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Hydrogen_atom">Hydrogen atom</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Hydrogen_atom.html" target="_blank" rel="noopener">open full-screen</a> · <em>one atom, solved exactly</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Diatomic_molecule.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Diatomic molecule — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Diatomic_molecule">Diatomic molecule</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Diatomic_molecule.html" target="_blank" rel="noopener">open full-screen</a> · <em>two atoms, two motions</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Ammonia.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Ammonia — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Ammonia">Ammonia</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Ammonia.html" target="_blank" rel="noopener">open full-screen</a> · <em>geometry, and tunnelling through it</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Metallic_hydrogen.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Metallic hydrogen — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Metallic_hydrogen">Metallic hydrogen</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Metallic_hydrogen.html" target="_blank" rel="noopener">open full-screen</a> · <em>the condensed extreme</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Hydrogen_line.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Hydrogen line — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Hydrogen_line">Hydrogen line</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Hydrogen_line.html" target="_blank" rel="noopener">open full-screen</a> · <em>the cosmic probe</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Hydronium.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Hydronium — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Hydronium">Hydronium</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Hydronium.html" target="_blank" rel="noopener">open full-screen</a> · <em>the proton that does not travel</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Haber_process.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Haber process — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Haber_process">Haber process</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Haber_process.html" target="_blank" rel="noopener">open full-screen</a> · <em>catalysis, and the compromise</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Electrolysis_of_water.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Electrolysis of water — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Electrolysis_of_water">Electrolysis of water</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Electrolysis_of_water.html" target="_blank" rel="noopener">open full-screen</a> · <em>making hydrogen</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Fuel_cell.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Fuel cell — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Fuel_cell">Fuel cell</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Fuel_cell.html" target="_blank" rel="noopener">open full-screen</a> · <em>using it again</em></div></div>
</li>
<li class="microsim-card" data-lib="threejs">
<iframe src="https://wikitube-3d-microsims.netlify.app/Interstellar_medium.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Interstellar medium — threejs microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Interstellar_medium">Interstellar medium</a></div><div class="ms-sub">threejs · <a href="https://wikitube-3d-microsims.netlify.app/Interstellar_medium.html" target="_blank" rel="noopener">open full-screen</a> · <em>where the element actually is</em></div></div>
</li>
</ul>
### 1. [[Hydrogen_atom]] — one atom, solved exactly
psi_nlm rendered as a rejection-sampled point cloud coloured by the **sign of psi**, not the density,
so the nodal structure is directly countable: n−l−1 nested spheres plus l cones and planes. Pick n, l
and m from selectors that rebuild each other live, so the quantum-number rules are shown rather than
merely obeyed, and slice the cloud open with a cutaway to see the radial shells from inside.
**HUD:** E_n to four decimals, degeneracy n² and 2n² with spin, node counts computed *and* counted
from the rendered cloud, and ⟨r⟩ from the closed form beside ⟨r⟩ measured from the sample with its
Monte Carlo error. The radial functions come from the stable Laguerre recurrence rather than a
hard-coded table, and were checked against closed forms to 10⁻¹⁰ across all 110 (n, l, m, form)
combinations.
### 2. [[Diatomic_molecule]] — two atoms, two motions
The molecule tumbles while the bond breathes, and the trail the light atom leaves is a rosette
because it does both at once. Real spectroscopic constants for H₂, HD, D₂, HCl and CO, so the isotope
series is one potential curve read by three different reduced masses. A Morse panel shows the level
ladder converging toward dissociation — the harmonic approximation visibly failing at high v — and a
spectrum strip draws the P and R branches with the Q branch labelled as forbidden. For H₂ the whole
strip is struck through, because a homonuclear molecule has no dipole and therefore no allowed
spectrum at all. **HUD:** E(v, J) split into vibrational and rotational parts, μ, B_v, the bond
length against r_e showing centrifugal stretch, and the bound-level count from the Morse formula,
which lands at 18 for H₂.
### 3. [[Ammonia]] — geometry, and tunnelling through it
The nitrogen turns its own molecule inside out. The inversion is driven by a real two-state
wavepacket in a real double well — the sim diagonalises the one-dimensional Schrödinger equation live
in a 60-function harmonic basis whenever a control moves, rather than quoting a number. The potential
is fitted once to three measured NH₃ values and everything else is a prediction: the barrier comes
out at 2019 cm⁻¹ against a measured ~2020, and the inversion amplitude gives an H-N-H angle of 106.7
degrees exactly. **The contrast control is the isotope switch:** ND₃ roughly doubles the reduced mass
and the tunnelling nearly stops. **HUD:** splitting in cm⁻¹ and GHz beside the experimental value,
the tunnelling period, and a live localised / in-transit / delocalised label read off the density.
### 4. [[Metallic_hydrogen]] — the condensed extreme
An hcp lattice of H₂ compressed until the molecules stop rotating, orientationally order, and finally
come apart into bare protons in an electron sea. The equation of state is a measured Vinet fit below
119 GPa blended into a DFT/QMC power law above. **HUD:** pressure in three units, a colour-coded
phase label flagged "(PREDICTED, unconfirmed)" where it applies, an orientational order parameter
measured live from the actual molecular axes, and — the headline — the H-H bond length beside the
nearest intermolecular gap with their **ratio**, which runs from 0.216 at ambient toward 1.000 at
dissociation. When that ratio reaches one, the molecule is gone. A phase-diagram inset marks Jupiter's
interior and hatches the contested band above 400 GPa.
### 5. [[Hydrogen_line]] — the cosmic probe
Two linked views and the link is the lesson. On the left, a proton and an electron with their spins
*and* their magnetic moments drawn separately — the electron's moment antiparallel to its spin,
which most treatments quietly get wrong — and the F=1 to F=0 flip emitting its photon. On the right,
a rotating disc of neutral hydrogen seen from inside, with a beam at the galactic longitude you
choose, the synthesised 21 cm spectrum, an accumulating longitude-velocity diagram whose ridges are
the spiral arms, and a rotation-curve panel where the sim runs the **tangent-point method on its own
spectra** and plots what it measures against the model it was given. Switch from the observed flat
curve to the Keplerian expectation and the measured points leave the prediction — which is the dark
matter argument, made by the reader rather than asserted at them.
### 6. [[Hydronium]] — the proton that does not travel
An excess proton crosses a tetrahedral hydrogen-bond network without any nucleus going anywhere: what
moves is the location of a covalent bond. Built on a real Bernal-Fowler ice-rule proton configuration,
with Agmon's second-shell gate implemented literally — a hop is impossible until the acceptor's own
hydrogen bond breaks, shown as green and red gate bars. **The contrast control** switches to vehicular
diffusion, where the ion has to swim. **HUD:** the charge's displacement divided by the mean oxygen
displacement — unbounded under Grotthuss, pinned at exactly 1.00 under vehicular, because there the
charge and its oxygen are the same object — beside a measured molar conductivity bar-charted against
H+ 349.8, OH- 198, K+ 73.5 and Na+ 50.1 S cm² mol⁻¹.
### 7. [[Haber_process]] — catalysis, and the compromise
Le Chatelier wants low temperature; the 945 kJ/mol nitrogen triple bond wants high. The whole process
is the resolution, and the sim makes you hunt for it: raise the temperature and watch the rate climb
while the equilibrium yield falls, with the productivity curve peaking between them. The slab builder
counts **104 C7 sites among 149 exposed atoms on Fe(111) and exactly zero on Fe(100) or Fe(110)**,
from the geometry alone — which is why the optimum moves 493 → 570 → 665 °C across the three faces.
Equilibrium reproduces the Larson–Dodge tables to within 1–8% over 300–600 °C and 10–300 atm.
**HUD:** equilibrium NH₃ mole %, Arrhenius rate, single-pass output, and live surface coverage showing
N* dominating.
### 8. [[Electrolysis_of_water]] — making hydrogen
The potential profile drawn as a staircase across the cell, so each loss appears as a step at the place
it happens: 1.229 V reversible, then anode activation, cathode activation, ohmic drop, concentration.
Below 1.229 V nothing happens at all, and the sim enforces it. Bubbles nucleate, grow, detach and
shadow the electrode, which is itself a loss. **HUD:** the budget summing to the applied voltage to
within 3 × 10⁻⁹ V, the 2:1 gas ratio **measured from the bubbles actually released**, and efficiency on
**both bases, always labelled** — the single most misquoted number in the field.
### 9. [[Fuel_cell]] — using it again
The mirror of the sim above, and the article says so. A PEM cell exploded into its layers with the
polarisation curve drawn live and its three regions correctly attributed. Peak power and the
efficiency-optimal point are marked separately, because they are not the same point and almost every
explanation omits it. Membrane hydration cuts both ways: too dry and conductivity collapses, too wet
and the cathode floods. **HUD:** the voltage budget summing exactly, both efficiency bases, and the
round-trip figure through the electrolyser — roughly 36% against lithium-ion's 85–95%, which is the
honest case for and against hydrogen storage.
### 10. [[Interstellar_medium]] — where the element actually is
Five thermal phases spanning eight orders of magnitude in temperature and density, coexisting because
they share one thermal pressure. **The headline control weights the box by VOLUME or by MASS, and the
ranking inverts** — molecular gas holds a fifth of the mass in under 1% of the volume, the hot phase
the reverse. The cold and warm neutral temperatures are **solved live** from the Koyama–Inutsuka
cooling curve at the slider pressure, so pushing outside the two-phase window genuinely destroys one
branch. Supernovae run Sedov-Taylor through to merger and carve the cavities that set the hot filling
factor, which the HUD **measures** by Monte Carlo rather than quoting. An observability control dims
what a 21 cm survey cannot see — which is where this sim meets [[Hydrogen_line]] from batch 1.
<!-- PORTALSIM:END -->
<!-- PORTALPROSE:BEGIN v1.0 — portal-microsim-pass; sourced prose, safe to regenerate -->
## What hydrogen is
<!-- SECTIONSIMS:BEGIN g34 2026-09-19 - microsims the articles linked here play; generated by _tools/generate/g34_portal_section_sims.py; do not hand-edit inside -->
*Microsims from the articles this section links:*
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/solar/Solar_System.html?obj=Jupiter&embed=1" data-title="Jupiter in the Solar System explorer"></div>
<!-- SECTIONSIMS:END -->
[[Hydrogen]] is one proton and one electron. That is the whole inventory, and it is why the element
sits at the base of almost everything else in physics and chemistry: it is the only atom whose
quantum mechanics can be solved exactly in closed form, the fuel of every main-sequence star, the
substance that most of the mass of [[Jupiter]] is made of, and the reference against which every
more complicated atom is understood. Roughly 92% of the atoms in the observable universe are
hydrogen.
That last figure deserves care, because it is routinely stated in two units and the two look
contradictory. By **number of atoms**, hydrogen is about 92.3% of ordinary matter and helium about
7.6%. By **mass**, hydrogen is about 74.4% and helium about 24.2%, because a helium nucleus is four
times heavier. Both statements are correct and they are the same fact. A third caveat is usually
dropped entirely: these are fractions of *baryonic* matter, and baryons are only about 5% of the
mass-energy of the universe. Hydrogen is under 4% of everything.[^asplund][^planck]
## The atom
The [[Hydrogen_atom]] is the exact solution. Because the Coulomb potential goes as 1/r, the
Schrodinger equation separates and its bound states come out in closed form as
psi_nlm(r, theta, phi) = R_nl(r) Y_lm(theta, phi) — a radial function built from associated Laguerre
polynomials times a spherical harmonic. Three integers label every state: the principal quantum
number n, the orbital angular momentum l with 0 <= l <= n-1, and the projection m with -l <= m <= +l.
The energies are
> E_n = -R_inf hc / n^2, R_inf hc = 13.605 693 122 990(15) eV
which is one of the most precisely known quantities in physics.[^codata] Two distinctions that
matter and that get blurred constantly. First, the Rydberg energy 13.6057 eV is *not* the
ground-state binding energy of a real hydrogen atom: that is 13.598 434 599 702(12) eV, some 7.3 meV
lower, because the proton is not infinitely heavy and the electron does not orbit a fixed
centre.[^nist] Second, Bohr's 1913 model gets these energies exactly right and its physical picture
exactly wrong — there are no orbits, no definite radii, and in the ground state the electron has
zero orbital angular momentum rather than the h-bar Bohr assigned it.[^bohr]
The most interesting structural fact about the hydrogen atom is a degeneracy that looks accidental
and is not. States with the same n but different l — 2s and 2p, or 3s, 3p and 3d — have identical
energy. Rotational symmetry alone would only force states of the same l to be degenerate. The extra
degeneracy comes from a further conserved quantity peculiar to the 1/r potential, the Laplace–Runge–
Lenz vector, which enlarges the symmetry group from SO(3) to SO(4).[^fock][^pauli] This is *not* a
general feature of atoms. In any many-electron atom, inner electrons screen the nucleus, the
potential stops being exactly 1/r, the l-degeneracy breaks, and 3s, 3p and 3d separate in energy.
The shape of the periodic table is that broken symmetry.
Because hydrogen is exactly calculable, it is where quantum electrodynamics is tested. The Lamb
shift — the splitting of 2s(1/2) from 2p(1/2), states the Dirac equation says are degenerate — was
measured at about 1058 MHz in 1947 and forced the development of renormalised QED.[^lamb] Modern
two-photon 1S–2S spectroscopy reaches a fractional uncertainty of about 4 x 10^-15, making it the
most precisely measured transition in any system predictable from first principles.
That precision produced a genuine crisis and then resolved it. In 2010 a measurement of the Lamb
shift in *muonic* hydrogen returned a proton charge radius about 4% smaller than the accepted value,
a 5-sigma discrepancy that stood for over a decade.[^pohl] It is now closed: a February 2026 2S–6P
measurement in ordinary hydrogen, at 0.66 parts per trillion, gave r_p = 0.8406(15) fm in agreement
with the muonic result and 5.5 sigma from the old value.[^maisenbacher] The muon behaved exactly as
QED predicted. The discrepancy was traced to the older spectroscopy and scattering extractions, not
to new physics — the puzzle's death is a confirmation of lepton universality, not a crack in it.
## Isotopes
Hydrogen has one proton and, optionally, neutrons. **Protium** has none and is 99.98% of terrestrial
hydrogen. **Deuterium** has one, at D/H = 155.76 ± 0.05 ppm in standard ocean water — about one atom
in 6,420 — though natural fractionation spreads real samples over roughly 26 to 184 ppm, so that
figure is a standard rather than a constant.[^vsmow] **Tritium** has two, is radioactive with a
half-life of 12.32 ± 0.02 years, and exists naturally only in traces.[^lucas]
Deuterium carries disproportionate cosmological weight. It is made only in Big Bang nucleosynthesis
and is destroyed, never net-produced, in stars — so its primordial abundance is a one-way clock. It
is also steeply sensitive to how many baryons there were: more baryons meant faster burning of
deuterium into helium-4 and less left over. The measured primordial value
(D/H)_P = (2.527 ± 0.030) x 10^-5, read off quasar absorption spectra at redshift 2.5, yields a
baryon density agreeing to within 2 sigma with the completely independent value from the acoustic
peaks of the cosmic microwave background at redshift 1100.[^cooke][^planck] Two numbers, utterly
different physics, one answer. It is among the strongest quantitative pillars of the hot Big Bang.
## The molecule
Two hydrogen atoms make H2, the simplest neutral molecule and the reference covalent
bond. Its equilibrium bond length is 74.14 pm and its dissociation energy from the lowest level is
D_0 = 36 118.069 45(53) cm^-1 = 4.478 07 eV.[^komasa] That figure must be distinguished from the well
depth D_e = 38 293 cm^-1: the difference is the zero-point energy, about 5.7% of the well, which the
molecule can never give up. A [[Diatomic_molecule]] has exactly two internal motions, vibration along
the bond and rotation about the centre of mass, both quantised and separated by roughly two orders of
magnitude in energy. That a potential energy curve V(r) exists at all is the content of the Born–
Oppenheimer approximation: nuclei are thousands of times heavier than electrons, so the electrons
adjust instantaneously and their energy becomes a potential for the nuclei.[^bo]
H2 has a peculiarity with real industrial consequences. Its two protons are identical fermions, so
the total wavefunction must be antisymmetric under exchange. This ties nuclear spin to rotational
parity: **ortho**-hydrogen has the nuclear spins parallel (triplet, weight 3) and only odd J, while
**para**-hydrogen has them antiparallel (singlet, weight 1) and only even J. At room temperature the
equilibrium ratio is 3:1 ortho to para. At 20 K it is 99.8% para.[^herzberg][^dennison] Freshly
liquefied "normal" hydrogen is therefore 75% ortho and badly out of equilibrium, and as it slowly
converts it releases about 525 kJ/kg — *more than the latent heat of vaporisation*. A tank of
untreated liquid hydrogen boils itself away, losing on the order of half its contents in a week,
which is why commercial liquefaction passes the gas over a paramagnetic catalyst to force conversion
before storage.
The other peculiarity is that H2 is nearly invisible. Being homonuclear it has no permanent electric
dipole, so it has no allowed electric-dipole rotational or vibrational spectrum. Cold molecular
hydrogen — the bulk of the molecular mass of a galaxy — simply does not radiate in the usual way. The
workaround is to observe carbon monoxide, which does have a dipole, and convert using an empirical
factor X_CO of about 2 x 10^20 cm^-2 (K km/s)^-1 with roughly 30% uncertainty in the Milky Way disc,
growing to factors of several in low-metallicity dwarfs.[^bolatto] It is a calibration, not a
constant of nature. The contrast with atomic hydrogen, which announces itself at 21 cm, could hardly
be sharper.
## Bonding, geometry and the hydrogen bond
<!-- SECTIONSIMS:BEGIN g34 2026-09-19 - microsims the articles linked here play; generated by _tools/generate/g34_portal_section_sims.py; do not hand-edit inside -->
*Microsims from the articles this section links:*
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Hydrogen_bond.html" data-title="Hydrogen bond"></div>
<!-- SECTIONSIMS:END -->
Hydrogen's chemistry is dominated by having exactly one electron to place. It forms a single covalent
bond, and because the resulting atom is a bare proton with no core electrons, it can approach an
electronegative neighbour far more closely than any other atom. That is the origin of the
[[Hydrogen_bond]]: an attraction between a hydrogen already bound to oxygen, nitrogen or fluorine and
a lone pair on another such atom. At roughly 20 kJ/mol it sits between covalent bonding and ordinary
dispersion — strong enough to organise matter, weak enough to break and reform at ordinary
temperatures. Nearly every anomalous property of [[Water]] follows from it, as does the secondary
structure of proteins and the pairing of nucleic acid bases.
[[Ammonia]] shows what a lone pair does to geometry, and then does something stranger. NH3 is a
trigonal pyramid with an H-N-H angle of 106.7 degrees, compressed below the tetrahedral 109.5 by the
lone pair. But the nitrogen can tunnel through the plane of the three hydrogens — the umbrella
inversion — passing through a planar configuration it lacks the energy to reach classically. The
resulting double well splits every vibrational level into a close pair, the ground-state splitting
being 0.7934 cm^-1, or 23.79 GHz.[^coudert] Deuterating to ND3 roughly doubles the reduced mass and
collapses the splitting to 0.0531 cm^-1, a factor of about fifteen, because tunnelling depends
exponentially on mass. That transition ran the first maser in 1954 and is the direct ancestor of the
laser.[^gordon]
Ammonia is also, by a wide margin, the most consequential hydrogen compound in industry. Haber–Bosch
fixes atmospheric nitrogen using hydrogen, consuming close to 2% of world final energy and emitting
around 450 Mt of CO2 a year. Roughly 70% of the output becomes fertiliser, and the standard estimate
is that about half of humanity is fed by nitrogen fixed this way — on the order of four billion
people.[^smil][^erisman]
## Extreme states
Squeeze hydrogen hard enough and the molecules should break apart, the electrons should stop
belonging to particular nuclei, and the insulating molecular solid should become an atomic metal.
Wigner and Huntington predicted this in 1935 and estimated it would take about 25 GPa.[^wigner] They
were wrong by more than an order of magnitude, and [[Metallic_hydrogen]] has still not been
uncontroversially made in a laboratory.
What is known is that solid hydrogen passes through a sequence of molecular phases under compression,
distinguished less by where the molecules sit than by how they are *oriented*. In phase I the H2
units rotate freely; above roughly 110 GPa, in the broken-symmetry phase II, they stop rotating and
orientationally order. Phases III, IV and V follow. The metallisation mechanism is a convergence: as
pressure rises the intramolecular bond and the intermolecular separation approach each other, and
when they become comparable the molecular identity is simply gone. Ashcroft suggested in 1968 that
the resulting metal might be a high-temperature superconductor, an idea that still motivates much of
the effort and that found an oblique vindication in the hydride superconductors.[^ashcroft]
The experimental situation should be stated without adjudication. Dias and Silvera reported solid
metallic hydrogen at 495 GPa in 2017; the claim drew published criticism over the alumina coating,
diamond stress and pressure calibration, the authors replied, and the sample was subsequently
lost.[^dias] Loubeyre and co-workers reported a deliberately narrower result in 2020, a *molecular*
metal near 425 GPa.[^loubeyre] Static and dynamic compression experiments probe different
temperatures and do not agree. There is no single pressure that "makes hydrogen metallic".
Nature, meanwhile, has been running the experiment continuously. Most of the interiors of
[[Jupiter]] and Saturn are *liquid* metallic hydrogen, and the circulation of that conducting
fluid drives their magnetic fields. The distinction between the liquid state that dominates the solar
system and the solid state that laboratories chase is real and is often blurred.
## Cosmic hydrogen
Hydrogen was not made in the Big Bang; the protons were already there. What Big Bang nucleosynthesis
did, between about one second and twenty minutes, was convert a quarter of the mass into helium-4 —
fixed by the neutron-to-proton ratio at freeze-out of roughly 1:7 — leaving trace deuterium, helium-3
and lithium-7. Nothing heavier was made, because there are no stable nuclei of mass 5 or 8 and the
universe cooled before three-body reactions could bridge the gap. All the carbon came later, in
stars.[^planck]
Stars run on hydrogen, and the Sun runs on the [[Proton–proton_chain]]: four protons become one
helium-4 nucleus, two positrons, two neutrinos and 26.73 MeV. The picture of four protons colliding
at once is wrong; the chain is sequential and its first step, p + p -> d + e+ + nu, proceeds only
through the weak interaction. That step is so improbable that a given proton in the solar core waits
on the order of a billion years for it, and that slowness is precisely what gives the Sun a ten-
billion-year lifetime rather than a brief one. The chain has been confirmed directly by neutrino
spectroscopy, which shows it supplying about 99% of solar luminosity with the CNO cycle contributing
the rest.[^borexino]
Between the stars, hydrogen is mostly neutral, cold and atomic, and it announces itself through one
of the most improbable transitions in physics. In a hydrogen atom the electron and proton magnetic
moments can align parallel or antiparallel; the two arrangements differ by 5.874 micro-eV, and the
flip emits a photon at 1420.405 751 768 MHz — the [[Hydrogen_line]] at 21.106 cm. The transition is
magnetic dipole and therefore forbidden to first order, with an Einstein coefficient of
2.85 x 10^-15 s^-1: any given atom waits about 11 million years. But there is so much hydrogen, and
radio waves pass so freely through dust, that the sky glows at 21 cm. Predicted by van de Hulst in
1944 and detected by Ewen and Purcell in 1951,[^ewen] the line mapped the spiral structure of the
Milky Way and, through the tangent-point method, measured the rotation curves whose flatness far
beyond the visible starlight became one of the founding arguments for dark matter.[^bosma]
## Hydrogen as an energy carrier
Hydrogen is a carrier, not a source. There is no hydrogen ore, and every kilogram must be made from
something else at a loss. Global demand is around 100 Mt a year, and **under 1% of it is
low-emissions**: the overwhelming majority comes from unabated steam methane reforming at roughly 9
to 10 kg of CO2 per kg of hydrogen, or coal gasification at roughly double that.[^iea] Calling
hydrogen clean without qualification describes the tailpipe and ignores the factory.
The efficiency numbers are widely misquoted, almost always because the basis is unstated. Hydrogen's
higher and lower heating values differ by about 18%, so the same electrolyser is "80% efficient" on
one basis and 68% on the other; that single ambiguity accounts for most of the contradictions in
circulation. Working honestly on HHV, electrolysers run around 50 to 88% depending on technology,
reconversion through a fuel cell 40 to 70%, and the **round trip from power to hydrogen and back
lands between roughly 25% and 48%** — against 85 to 95% for lithium-ion batteries.[^ipcc] Compression
to 700 bar costs a further 10 to 15%; liquefaction costs around 30%, before the ortho-para tax
described above.
Hydrogen's real case is not efficiency. It is duration, and it is the sectors that electrons cannot
reach directly: steelmaking, ammonia, shipping and aviation fuels. The energy-density claim follows
the same pattern as the efficiency one — hydrogen has the highest energy per kilogram of any chemical
fuel at 120 MJ/kg, about three times diesel, and among the lowest per litre at roughly 8 MJ/L liquid
against diesel's 36. Both are true, and quoting only the first is the standard rhetorical move.
---
## References
[^asplund]: Asplund, Martin, Amanda M. Amarsi, and Nicolas Grevesse. "The chemical make-up of the Sun: A 2020 vision." *Astronomy & Astrophysics* 653 (2021): A141. DOI: [10.1051/0004-6361/202140445](https://doi.org/10.1051/0004-6361/202140445)
[^planck]: Planck Collaboration. "Planck 2018 results. VI. Cosmological parameters." *Astronomy & Astrophysics* 641 (2020): A6. DOI: [10.1051/0004-6361/201833910](https://doi.org/10.1051/0004-6361/201833910)
[^codata]: Mohr, Peter J., David B. Newell, Barry N. Taylor, and Eite Tiesinga. "CODATA recommended values of the fundamental physical constants: 2022." *Reviews of Modern Physics* 97, no. 2 (2025): 025002. DOI: [10.1103/RevModPhys.97.025002](https://doi.org/10.1103/RevModPhys.97.025002)
[^nist]: Kramida, A., Yu. Ralchenko, J. Reader, and NIST ASD Team. *NIST Atomic Spectra Database*, version 5.12. National Institute of Standards and Technology, 2024. [physics.nist.gov/asd](https://physics.nist.gov/asd)
[^bohr]: Bohr, Niels. "On the constitution of atoms and molecules." *Philosophical Magazine* 26, no. 151 (1913): 1–25. DOI: [10.1080/14786441308634955](https://doi.org/10.1080/14786441308634955)
[^fock]: Fock, V. "Zur Theorie des Wasserstoffatoms." *Zeitschrift für Physik* 98 (1935): 145–154. DOI: [10.1007/BF01336904](https://doi.org/10.1007/BF01336904)
[^pauli]: Pauli, Wolfgang. "Über das Wasserstoffspektrum vom Standpunkt der neuen Quantenmechanik." *Zeitschrift für Physik* 36 (1926): 336–363. DOI: [10.1007/BF01450175](https://doi.org/10.1007/BF01450175)
[^lamb]: Lamb, Willis E., and Robert C. Retherford. "Fine structure of the hydrogen atom by a microwave method." *Physical Review* 72, no. 3 (1947): 241–243. DOI: [10.1103/PhysRev.72.241](https://doi.org/10.1103/PhysRev.72.241)
[^pohl]: Pohl, Randolf, et al. "The size of the proton." *Nature* 466 (2010): 213–216. DOI: [10.1038/nature09250](https://doi.org/10.1038/nature09250)
[^maisenbacher]: Maisenbacher, Lothar, Vitaly Wirthl, Arthur Matveev, Alexey Grinin, Randolf Pohl, Theodor W. Hänsch, and Thomas Udem. "Sub-part-per-trillion test of the Standard Model with atomic hydrogen." *Nature* 650, no. 8103 (2026): 845–851. DOI: [10.1038/s41586-026-10124-3](https://doi.org/10.1038/s41586-026-10124-3)
[^vsmow]: Hagemann, R., G. Nief, and E. Roth. "Absolute isotopic scale for deuterium analysis of natural waters." *Tellus* 22, no. 6 (1970): 712–715. DOI: [10.3402/tellusa.v22i6.10278](https://doi.org/10.3402/tellusa.v22i6.10278)
[^lucas]: Lucas, L. L., and M. P. Unterweger. "Comprehensive review and critical evaluation of the half-life of tritium." *Journal of Research of NIST* 105, no. 4 (2000): 541–549. DOI: [10.6028/jres.105.043](https://doi.org/10.6028/jres.105.043)
[^cooke]: Cooke, Ryan J., Max Pettini, and Charles C. Steidel. "One percent determination of the primordial deuterium abundance." *The Astrophysical Journal* 855, no. 2 (2018): 102. DOI: [10.3847/1538-4357/aaab53](https://doi.org/10.3847/1538-4357/aaab53)
[^komasa]: Komasa, Jacek, Mariusz Puchalski, Paweł Czachorowski, Grzegorz Łach, and Krzysztof Pachucki. "Rovibrational energy levels of the hydrogen molecule through nonadiabatic perturbation theory." *Physical Review A* 100, no. 3 (2019): 032519. DOI: [10.1103/PhysRevA.100.032519](https://doi.org/10.1103/PhysRevA.100.032519)
[^bo]: Born, Max, and Robert Oppenheimer. "Zur Quantentheorie der Molekeln." *Annalen der Physik* 389, no. 20 (1927): 457–484. DOI: [10.1002/andp.19273892002](https://doi.org/10.1002/andp.19273892002)
[^herzberg]: Herzberg, Gerhard. *Molecular Spectra and Molecular Structure. I. Spectra of Diatomic Molecules.* 2nd ed. New York: Van Nostrand Reinhold, 1950.
[^dennison]: Dennison, D. M. "A note on the specific heat of the hydrogen molecule." *Proceedings of the Royal Society A* 115, no. 771 (1927): 483–486. DOI: [10.1098/rspa.1927.0105](https://doi.org/10.1098/rspa.1927.0105)
[^bolatto]: Bolatto, Alberto D., Mark Wolfire, and Adam K. Leroy. "The CO-to-H2 conversion factor." *Annual Review of Astronomy and Astrophysics* 51 (2013): 207–268. DOI: [10.1146/annurev-astro-082812-140944](https://doi.org/10.1146/annurev-astro-082812-140944)
[^coudert]: Coudert, L. H., and E. Roueff. "Reactive collisions of ammonia isotopologues." *Astronomy & Astrophysics* 449, no. 2 (2006): 855–859. DOI: [10.1051/0004-6361:20054287](https://doi.org/10.1051/0004-6361:20054287)
[^gordon]: Gordon, J. P., H. J. Zeiger, and C. H. Townes. "Molecular microwave oscillator and new hyperfine structure in the microwave spectrum of NH3." *Physical Review* 95, no. 1 (1954): 282–284. DOI: [10.1103/PhysRev.95.282](https://doi.org/10.1103/PhysRev.95.282); and "The maser — new type of microwave amplifier, frequency standard, and spectrometer." *Physical Review* 99, no. 4 (1955): 1264–1274. DOI: [10.1103/PhysRev.99.1264](https://doi.org/10.1103/PhysRev.99.1264)
[^smil]: Smil, Vaclav. *Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production.* Cambridge, MA: MIT Press, 2001. ISBN 978-0-262-19449-9
[^erisman]: Erisman, Jan Willem, Mark A. Sutton, James Galloway, Zbigniew Klimont, and Wilfried Winiwarter. "How a century of ammonia synthesis changed the world." *Nature Geoscience* 1 (2008): 636–639. DOI: [10.1038/ngeo325](https://doi.org/10.1038/ngeo325)
[^wigner]: Wigner, E., and H. B. Huntington. "On the possibility of a metallic modification of hydrogen." *The Journal of Chemical Physics* 3, no. 12 (1935): 764–770. DOI: [10.1063/1.1749590](https://doi.org/10.1063/1.1749590)
[^ashcroft]: Ashcroft, N. W. "Metallic hydrogen: A high-temperature superconductor?" *Physical Review Letters* 21, no. 26 (1968): 1748–1749. DOI: [10.1103/PhysRevLett.21.1748](https://doi.org/10.1103/PhysRevLett.21.1748)
[^dias]: Dias, Ranga P., and Isaac F. Silvera. "Observation of the Wigner-Huntington transition to metallic hydrogen." *Science* 355, no. 6326 (2017): 715–718. DOI: [10.1126/science.aal1579](https://doi.org/10.1126/science.aal1579)
[^loubeyre]: Loubeyre, Paul, Florent Occelli, and Paul Dumas. "Synchrotron infrared spectroscopic evidence of the probable transition to metal hydrogen." *Nature* 577 (2020): 631–635. DOI: [10.1038/s41586-019-1927-3](https://doi.org/10.1038/s41586-019-1927-3)
[^borexino]: Borexino Collaboration. "Comprehensive measurement of pp-chain solar neutrinos." *Nature* 562 (2018): 505–510. DOI: [10.1038/s41586-018-0624-y](https://doi.org/10.1038/s41586-018-0624-y)
[^ewen]: Ewen, H. I., and E. M. Purcell. "Observation of a line in the galactic radio spectrum: Radiation from galactic hydrogen at 1,420 Mc./sec." *Nature* 168, no. 4270 (1951): 356. DOI: [10.1038/168356a0](https://doi.org/10.1038/168356a0)
[^bosma]: Bosma, Albert. "21-cm line studies of spiral galaxies. II." *The Astronomical Journal* 86 (1981): 1825–1846. DOI: [10.1086/113063](https://doi.org/10.1086/113063)
[^iea]: International Energy Agency. *Global Hydrogen Review 2025.* Paris: IEA, 2025. [iea.org/reports/global-hydrogen-review-2025](https://www.iea.org/reports/global-hydrogen-review-2025)
[^ipcc]: Nicita, A., G. Maggio, A. P. F. Andaloro, and G. Squadrito. "Green hydrogen as a feedstock: Financial analysis of a photovoltaic-powered electrolysis plant." *International Journal of Hydrogen Energy* 45, no. 20 (2020): 11395–11408. DOI: [10.1016/j.ijhydene.2020.02.062](https://doi.org/10.1016/j.ijhydene.2020.02.062)
<!-- PORTALPROSE:END -->
<!-- GIFPLATE:BEGIN v1.0 g16 — Commons hotlink; do not hand-edit inside -->
## Images
<figure class="wt-gifplate">
<img src="https://commons.wikimedia.org/wiki/Special:FilePath/Atom_animation.gif" alt="Atom Structure" loading="lazy" decoding="async">
<figcaption><strong>Atom Structure</strong> — Show hydrogen atom structure and electron shell dynamics.<br>
<span class="wt-credit">Wikimedia Commons · <strong>licence pending verification</strong> (run <code>g17_gif_verify.py</code> on a networked lane) · <a href="https://commons.wikimedia.org/wiki/File:Atom_animation.gif">Details</a></span></figcaption>
</figure>
*Room plate for [[Hydrogen]]. The interactive builds live below; this is the room's one still-motion establishing shot.*
<!-- GIFPLATE:END -->
The canonical spine of [[Hydrogen]]: its full tree-verified child structure, publishable to
Obsidian as the scaffold for route objects (microsims, songs, semiotics, cardsets, games,
streams, transcripts) keyed to this hub.
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<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Helium-3">Helium-3</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/clpT03_2G" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/HVNGd9nMv" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Histogram — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/WT!P5_js_Microsim_Master_Class">Histogram</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/HVNGd9nMv" target="_blank" rel="noopener">open in the p5 editor</a> · on <a href="https://en.wikitube.io/wiki/WT!P5_js_Microsim_Master_Class">p5.js Microsim Master Class</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/igQKlUTcC" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Hydrogen production — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Hydrogen_production">Hydrogen production</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/igQKlUTcC" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/sTaq4v2KA" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Ionization energy — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Ionization_energy">Ionization energy</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/sTaq4v2KA" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/TDyTvSrmV" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Leak detection — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Leak_detection">Leak detection</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/TDyTvSrmV" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/vYxugfF1s" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Lifting gas — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Lifting_gas">Lifting gas</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/vYxugfF1s" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/7eQM3QcvQ" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Natural gas — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Natural_gas">Natural gas</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/7eQM3QcvQ" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/x1rQI-8lu" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Neutron — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Neutron">Neutron</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/x1rQI-8lu" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/3zZMw0yrq" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Noble gas — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Noble_gas">Noble gas</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/3zZMw0yrq" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/Tpchmb17V" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Nucleosynthesis — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Nucleosynthesis">Nucleosynthesis</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/Tpchmb17V" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/b0gIqrpjh" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Photon — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Photon">Photon</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/b0gIqrpjh" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/Tb2hfHDgn" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Plasma (physics) — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Plasma_(physics)">Plasma (physics)</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/Tb2hfHDgn" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/D_V7bDzKP" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Plutonium — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Plutonium">Plutonium</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/D_V7bDzKP" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/09Qloq3Kk" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Proton — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Proton">Proton</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/09Qloq3Kk" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/A_73AMciC" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Quantum mechanics — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Quantum_mechanics">Quantum mechanics</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/A_73AMciC" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/ndeZ3IkXH" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Radioactive decay — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Radioactive_decay">Radioactive decay</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/ndeZ3IkXH" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/DsIanlgNT" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Rocket propellant — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Rocket_propellant">Rocket propellant</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/DsIanlgNT" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/zMq3oG9Pf" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Schrödinger equation — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Schrödinger_equation">Schrödinger equation</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/zMq3oG9Pf" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/B7INX7LL9" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Science (journal) — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Science_(journal)">Science (journal)</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/B7INX7LL9" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/kPAyXdn0U" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Semiconductor device fabrication — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Semiconductor_device_fabrication">Semiconductor device fabrication</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/kPAyXdn0U" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/9GBXPCDIZ" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Shielding gas — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Shielding_gas">Shielding gas</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/9GBXPCDIZ" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/yAQ3WhXLM" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Spin (physics) — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Spin_(physics)">Spin (physics)</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/yAQ3WhXLM" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
</li>
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<iframe src="https://editor.p5js.org/sciencenibber/full/3OFg-Su8M" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Steel — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Steel">Steel</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/3OFg-Su8M" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/3xQZFjhRZ" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Superconductivity — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Superconductivity">Superconductivity</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/3xQZFjhRZ" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/cE4mNawUS" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Thorium — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Thorium">Thorium</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/cE4mNawUS" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/1IZoNsxqT" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Titanium — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Titanium">Titanium</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/1IZoNsxqT" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/Cb_IFki6B" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Transducer — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Transducer">Transducer</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/Cb_IFki6B" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/kMi3GOmq5" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Transducer (p5.js) — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Transducer">Transducer (p5.js)</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/kMi3GOmq5" target="_blank" rel="noopener">open in the p5 editor</a> · on <a href="https://en.wikitube.io/wiki/Transducer">Transducer</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/LGnSl67W_" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Viscosity — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Viscosity">Viscosity</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/LGnSl67W_" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://editor.p5js.org/sciencenibber/full/ZBxM-wEIe" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Wayback Machine — p5js microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Wayback_Machine">Wayback Machine</a></div><div class="ms-sub">p5js · <a href="https://editor.p5js.org/sciencenibber/full/ZBxM-wEIe" target="_blank" rel="noopener">open in the p5 editor</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=Ac&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Actinium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Actinium">🧊 Actinium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ac&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Actinium">Actinium</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=Al&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Aluminium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Aluminium">🧊 Aluminium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Al&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Aluminium">Aluminium</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=Am&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Americium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Americium">🧊 Americium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Am&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Americium">Americium</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=Sb&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Antimony — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Antimony">🧊 Antimony</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Sb&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Antimony">Antimony</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=Ar&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Argon — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Argon">🧊 Argon</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ar&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Argon">Argon</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=As&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Arsenic — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Arsenic">🧊 Arsenic</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=As&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Arsenic">Arsenic</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=At&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Astatine — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Astatine">🧊 Astatine</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=At&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Astatine">Astatine</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=Ba&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Barium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Barium">🧊 Barium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ba&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Barium">Barium</a></div></div>
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<iframe src="https://wikitube-elements.netlify.app/?el=Bk&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Berkelium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Berkelium">🧊 Berkelium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Bk&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Berkelium">Berkelium</a></div></div>
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<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Be&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Beryllium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Beryllium">🧊 Beryllium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Be&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Beryllium">Beryllium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Bi&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Bismuth — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Bismuth">🧊 Bismuth</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Bi&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Bismuth">Bismuth</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Bh&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Bohrium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Bohrium">🧊 Bohrium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Bh&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Bohrium">Bohrium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=B&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Boron — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Boron">🧊 Boron</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=B&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Boron">Boron</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Br&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Bromine — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Bromine">🧊 Bromine</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Br&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Bromine">Bromine</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cd&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Cadmium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Cadmium">🧊 Cadmium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cd&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Cadmium">Cadmium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cs&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Caesium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Caesium">🧊 Caesium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cs&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Caesium">Caesium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ca&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Calcium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Calcium">🧊 Calcium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ca&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Calcium">Calcium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cf&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Californium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Californium">🧊 Californium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cf&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Californium">Californium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=C&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Carbon — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Carbon">🧊 Carbon</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=C&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Carbon">Carbon</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ce&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Cerium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Cerium">🧊 Cerium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ce&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Cerium">Cerium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cl&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Chlorine — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Chlorine">🧊 Chlorine</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cl&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Chlorine">Chlorine</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cr&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Chromium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Chromium">🧊 Chromium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cr&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Chromium">Chromium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Co&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Cobalt — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Cobalt">🧊 Cobalt</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Co&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Cobalt">Cobalt</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cn&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Copernicium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Copernicium">🧊 Copernicium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cn&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Copernicium">Copernicium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cu&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Copper — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Copper">🧊 Copper</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cu&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Copper">Copper</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Cm&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Curium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Curium">🧊 Curium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Cm&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Curium">Curium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ds&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Darmstadtium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Darmstadtium">🧊 Darmstadtium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ds&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Darmstadtium">Darmstadtium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Db&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Dubnium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Dubnium">🧊 Dubnium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Db&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Dubnium">Dubnium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Dy&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Dysprosium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Dysprosium">🧊 Dysprosium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Dy&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Dysprosium">Dysprosium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Es&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Einsteinium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Einsteinium">🧊 Einsteinium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Es&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Einsteinium">Einsteinium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Er&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Erbium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Erbium">🧊 Erbium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Er&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Erbium">Erbium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Eu&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Europium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Europium">🧊 Europium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Eu&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Europium">Europium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Fm&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Fermium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Fermium">🧊 Fermium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Fm&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Fermium">Fermium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Fl&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Flerovium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Flerovium">🧊 Flerovium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Fl&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Flerovium">Flerovium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=F&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Fluorine — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Fluorine">🧊 Fluorine</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=F&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Fluorine">Fluorine</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Fr&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Francium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Francium">🧊 Francium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Fr&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Francium">Francium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Gd&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Gadolinium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Gadolinium">🧊 Gadolinium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Gd&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Gadolinium">Gadolinium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ga&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Gallium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Gallium">🧊 Gallium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ga&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Gallium">Gallium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ge&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Germanium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Germanium">🧊 Germanium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ge&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Germanium">Germanium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Au&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Gold — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Gold">🧊 Gold</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Au&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Gold">Gold</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Hf&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Hafnium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Hafnium">🧊 Hafnium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Hf&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Hafnium">Hafnium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Hs&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Hassium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Hassium">🧊 Hassium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Hs&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Hassium">Hassium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=He&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Helium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Helium">🧊 Helium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=He&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Helium">Helium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ho&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Holmium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Holmium">🧊 Holmium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ho&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Holmium">Holmium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=H&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Hydrogen — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Hydrogen">🧊 Hydrogen</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=H&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Hydrogen">Hydrogen</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=In&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Indium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Indium">🧊 Indium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=In&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Indium">Indium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=I&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Iodine — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Iodine">🧊 Iodine</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=I&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Iodine">Iodine</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ir&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Iridium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Iridium">🧊 Iridium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ir&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Iridium">Iridium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Fe&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Iron — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Iron">🧊 Iron</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Fe&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Iron">Iron</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Kr&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Krypton — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Krypton">🧊 Krypton</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Kr&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Krypton">Krypton</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=La&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Lanthanum — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Lanthanum">🧊 Lanthanum</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=La&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Lanthanum">Lanthanum</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Lr&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Lawrencium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Lawrencium">🧊 Lawrencium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Lr&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Lawrencium">Lawrencium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Pb&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Lead — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Lead">🧊 Lead</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Pb&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Lead">Lead</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Li&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Lithium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Lithium">🧊 Lithium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Li&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Lithium">Lithium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Lv&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Livermorium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Livermorium">🧊 Livermorium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Lv&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Livermorium">Livermorium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Lu&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Lutetium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Lutetium">🧊 Lutetium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Lu&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Lutetium">Lutetium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Mg&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Magnesium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Magnesium">🧊 Magnesium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Mg&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Magnesium">Magnesium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Mn&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Manganese — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Manganese">🧊 Manganese</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Mn&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Manganese">Manganese</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Mt&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Meitnerium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Meitnerium">🧊 Meitnerium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Mt&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Meitnerium">Meitnerium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Md&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Mendelevium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Mendelevium">🧊 Mendelevium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Md&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Mendelevium">Mendelevium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Hg&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Mercury — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Mercury_(element)">🧊 Mercury</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Hg&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Mercury_(element)">Mercury (element)</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Mo&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Molybdenum — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Molybdenum">🧊 Molybdenum</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Mo&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Molybdenum">Molybdenum</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Mc&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Moscovium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Moscovium">🧊 Moscovium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Mc&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Moscovium">Moscovium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Nd&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Neodymium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Neodymium">🧊 Neodymium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Nd&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Neodymium">Neodymium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ne&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Neon — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Neon">🧊 Neon</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ne&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Neon">Neon</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Np&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Neptunium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Neptunium">🧊 Neptunium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Np&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Neptunium">Neptunium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ni&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Nickel — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Nickel">🧊 Nickel</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ni&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Nickel">Nickel</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Nh&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Nihonium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Nihonium">🧊 Nihonium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Nh&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Nihonium">Nihonium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Nb&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Niobium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Niobium">🧊 Niobium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Nb&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Niobium">Niobium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=N&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Nitrogen — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Nitrogen">🧊 Nitrogen</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=N&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Nitrogen">Nitrogen</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=No&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Nobelium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Nobelium">🧊 Nobelium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=No&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Nobelium">Nobelium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Og&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Oganesson — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Oganesson">🧊 Oganesson</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Og&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Oganesson">Oganesson</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Os&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Osmium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Osmium">🧊 Osmium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Os&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Osmium">Osmium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=O&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Oxygen — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Oxygen">🧊 Oxygen</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=O&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Oxygen">Oxygen</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Pd&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Palladium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Palladium">🧊 Palladium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Pd&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Palladium">Palladium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=P&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Phosphorus — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Phosphorus">🧊 Phosphorus</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=P&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Phosphorus">Phosphorus</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Pt&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Platinum — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Platinum">🧊 Platinum</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Pt&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Platinum">Platinum</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Pu&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Plutonium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Plutonium">🧊 Plutonium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Pu&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Plutonium">Plutonium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Po&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Polonium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Polonium">🧊 Polonium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Po&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Polonium">Polonium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=K&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Potassium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Potassium">🧊 Potassium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=K&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Potassium">Potassium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Pr&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Praseodymium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Praseodymium">🧊 Praseodymium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Pr&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Praseodymium">Praseodymium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Pm&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Promethium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Promethium">🧊 Promethium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Pm&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Promethium">Promethium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Pa&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Protactinium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Protactinium">🧊 Protactinium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Pa&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Protactinium">Protactinium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ra&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Radium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Radium">🧊 Radium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ra&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Radium">Radium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Rn&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Radon — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Radon">🧊 Radon</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Rn&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Radon">Radon</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Re&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Rhenium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Rhenium">🧊 Rhenium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Re&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Rhenium">Rhenium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Rh&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Rhodium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Rhodium">🧊 Rhodium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Rh&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Rhodium">Rhodium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Rg&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Roentgenium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Roentgenium">🧊 Roentgenium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Rg&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Roentgenium">Roentgenium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Rb&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Rubidium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Rubidium">🧊 Rubidium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Rb&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Rubidium">Rubidium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ru&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Ruthenium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Ruthenium">🧊 Ruthenium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ru&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Ruthenium">Ruthenium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Rf&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Rutherfordium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Rutherfordium">🧊 Rutherfordium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Rf&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Rutherfordium">Rutherfordium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Sm&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Samarium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Samarium">🧊 Samarium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Sm&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Samarium">Samarium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Sc&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Scandium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Scandium">🧊 Scandium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Sc&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Scandium">Scandium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Sg&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Seaborgium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Seaborgium">🧊 Seaborgium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Sg&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Seaborgium">Seaborgium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Se&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Selenium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Selenium">🧊 Selenium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Se&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Selenium">Selenium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Si&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Silicon — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Silicon">🧊 Silicon</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Si&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Silicon">Silicon</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ag&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Silver — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Silver">🧊 Silver</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ag&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Silver">Silver</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Na&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Sodium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Sodium">🧊 Sodium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Na&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Sodium">Sodium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Sr&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Strontium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Strontium">🧊 Strontium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Sr&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Strontium">Strontium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=S&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Sulfur — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Sulfur">🧊 Sulfur</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=S&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Sulfur">Sulfur</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ta&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Tantalum — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Tantalum">🧊 Tantalum</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ta&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Tantalum">Tantalum</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Tc&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Technetium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Technetium">🧊 Technetium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Tc&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Technetium">Technetium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Te&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Tellurium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Tellurium">🧊 Tellurium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Te&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Tellurium">Tellurium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ts&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Tennessine — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Tennessine">🧊 Tennessine</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ts&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Tennessine">Tennessine</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Tb&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Terbium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Terbium">🧊 Terbium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Tb&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Terbium">Terbium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Tl&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Thallium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Thallium">🧊 Thallium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Tl&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Thallium">Thallium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Th&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Thorium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Thorium">🧊 Thorium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Th&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Thorium">Thorium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Tm&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Thulium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Thulium">🧊 Thulium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Tm&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Thulium">Thulium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Sn&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Tin — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Tin">🧊 Tin</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Sn&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Tin">Tin</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Ti&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Titanium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Titanium">🧊 Titanium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Ti&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Titanium">Titanium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=W&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Tungsten — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Tungsten">🧊 Tungsten</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=W&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Tungsten">Tungsten</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=U&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Uranium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Uranium">🧊 Uranium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=U&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Uranium">Uranium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=V&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Vanadium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Vanadium">🧊 Vanadium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=V&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Vanadium">Vanadium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Xe&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Xenon — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Xenon">🧊 Xenon</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Xe&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Xenon">Xenon</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Yb&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Ytterbium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Ytterbium">🧊 Ytterbium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Yb&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Ytterbium">Ytterbium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Y&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Yttrium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Yttrium">🧊 Yttrium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Y&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Yttrium">Yttrium</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Zn&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Zinc — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Zinc">🧊 Zinc</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Zn&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Zinc">Zinc</a></div></div>
</li>
<li class="microsim-card" data-lib="elements">
<iframe src="https://wikitube-elements.netlify.app/?el=Zr&embed=1" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="🧊 Zirconium — elements microsim"></iframe>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Zirconium">🧊 Zirconium</a></div><div class="ms-sub">elements · <a href="https://wikitube-elements.netlify.app/?el=Zr&embed=1" target="_blank" rel="noopener">open full-screen</a> · on <a href="https://en.wikitube.io/wiki/Zirconium">Zirconium</a></div></div>
</li>
<li class="microsim-card is-pending" data-lib="threejs">
<div class="ms-placeholder">Staged, not yet deployed — <code>Bohr_model.html</code></div>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Bohr_model">Bohr model</a></div><div class="ms-sub">threejs · awaiting CDN deploy</div></div>
</li>
<li class="microsim-card is-pending" data-lib="threejs">
<div class="ms-placeholder">Staged, not yet deployed — <code>Crystal_structure.html</code></div>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Crystal_structure">Crystal structure</a></div><div class="ms-sub">threejs · awaiting CDN deploy</div></div>
</li>
<li class="microsim-card is-pending" data-lib="threejs">
<div class="ms-placeholder">Staged, not yet deployed — <code>Ion.html</code></div>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Ion">Ion</a></div><div class="ms-sub">threejs · awaiting CDN deploy</div></div>
</li>
<li class="microsim-card is-pending" data-lib="threejs">
<div class="ms-placeholder">Staged, not yet deployed — <code>Neutron_diffraction.html</code></div>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Neutron_diffraction">Neutron diffraction</a></div><div class="ms-sub">threejs · awaiting CDN deploy</div></div>
</li>
<li class="microsim-card is-pending" data-lib="threejs">
<div class="ms-placeholder">Staged, not yet deployed — <code>Nuclear_fuel.html</code></div>
<div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Nuclear_fuel">Nuclear fuel</a></div><div class="ms-sub">threejs · awaiting CDN deploy</div></div>
</li>
</ul>
<!-- SIMGALLERY:END -->
<!-- CRAFT-LINK:START g12 -->
**Craft standard:** Both craft standards apply here — [[WT!Three_js_Microsim_Master_Class|three.js]] and [[WT!P5_js_Microsim_Master_Class|p5.js]].
<!-- CRAFT-LINK:END -->
<!-- WT:REPOP 2026-09-10 begin -->
## Stations · added 2026-09-10
**Deploy state, 2026-09-10.** All ten three.js players in *Master microsims — three.js* above are live on `wikitube-3d-microsims.netlify.app` and now play in place. The "Staged, ready to deploy" note up there predates that.
The first three microsims from the Hydrogen worklist (rows HYD-001 to HYD-003), built to the Betterfire standard and gated before shipping. Each has a 16:9 and a 9:16 video. Published to the live site, `wikitube-3d-microsims.netlify.app`, on 2026-09-10.
<div class="wt-simrow">
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Photocatalytic_water_splitting.html" data-title="Photocatalytic water splitting"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Hydrogen_storage.html" data-title="Hydrogen storage"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Hydrogen_production.html" data-title="Hydrogen production"></div>
</div>
### 1. [[Photocatalytic_water_splitting]] — light that splits water
A photoanode and a platinum cathode stand in water under a lamp whose wavelength you drag along a spectrum bar. Each photon carries E = hc/λ; only photons with at least the band-gap energy are absorbed (TiO₂ anatase 3.2 eV, so λ below 387 nm). Green and violet light pass straight through. Ultraviolet is absorbed: holes oxidise water at the anode, electrons run the wire to the cathode, and bubbles rise, two of hydrogen for every one of oxygen, as 2 H₂O → 2 H₂ + O₂ requires. Press **m** for rutile (3.0 eV) or BiVO₄ (2.4 eV), which splits water in blue light. **HUD:** λ, photon energy, band gap, and the running H₂ and O₂ tallies; an energy ladder beside the cell shows the photon arrow against the gap and the 1.23 eV water needs.
Videos: [16:9](https://wikitube-3d-microsims.netlify.app/media/Photocatalytic_water_splitting_16x9.mp4) · [9:16](https://wikitube-3d-microsims.netlify.app/media/Photocatalytic_water_splitting_9x16.mp4)
### 2. [[Hydrogen_storage]] — the fight for kilograms per cubic metre
The tank that carries 5 kg of hydrogen, about 500 km in a fuel-cell car, sized three ways. Compressed gas follows the Abel-Noble real-gas law ρ = P/(R_s T + bP): 208 L at 350 bar, about 120 L at 700 bar, and only 98 L at 1000 bar, because real hydrogen stops packing like an ideal gas (a dashed bar shows what an ideal gas would do). Liquid hydrogen at 20 K needs 71 L and boils off slowly. Magnesium hydride is densest of all, 110 kg of H₂ per m³ in 45 L, but its van 't Hoff equilibrium pressure only passes the ~1 bar a fuel cell is fed at once the bed is above about 555 K (280 °C). **HUD:** tank volumes, real and ideal gas density, and the hydride's equilibrium pressure on a log plot.
Videos: [16:9](https://wikitube-3d-microsims.netlify.app/media/Hydrogen_storage_16x9.mp4) · [9:16](https://wikitube-3d-microsims.netlify.app/media/Hydrogen_storage_9x16.mp4)
### 3. [[Hydrogen_production]] — only as clean as the electricity
Drag the bars of an electricity mix (wind, solar, gas, coal; IPCC AR5 life-cycle medians of 11, 48, 490 and 820 g CO₂/kWh) feeding an electrolyser, and set its efficiency. Splitting water takes at least 39.4 kWh per kilogram of hydrogen, so CO₂ per kg H₂ = (39.4 kWh ÷ η) × grid intensity. On a coal-heavy grid that is about 39 kg of CO₂ per kilogram; steam-reforming natural gas is about 9. Electrolysis only wins when the grid is below about 150 g/kWh at 65% efficiency, and on wind alone it falls under 1 kg. **HUD:** grid intensity, kWh per kilogram, kg CO₂ per kg H₂, and the break-even grid intensity.
Videos: [16:9](https://wikitube-3d-microsims.netlify.app/media/Hydrogen_production_16x9.mp4) · [9:16](https://wikitube-3d-microsims.netlify.app/media/Hydrogen_production_9x16.mp4)
## Worklist · added 2026-09-10
<!-- SECTIONSIMS:BEGIN g34 2026-09-19 - microsims the articles linked here play; generated by _tools/generate/g34_portal_section_sims.py; do not hand-edit inside -->
*Microsims from the articles this section links:*
<div class="wt-simrow">
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Hydrogen_economy.html" data-title="Hydrogen economy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Fuel_cell.html" data-title="Fuel cell"></div>
</div>
<!-- SECTIONSIMS:END -->
Next in the Hydrogen queue (HYD-004 to HYD-013): [[Molybdenum_disulfide]] · [[Metal–organic_framework]] · [[Electrocatalyst]] · [[Hydrogen_economy]] · [[Metallic_hydrogen]] · [[Sabatier_principle]] · [[Radiolysis]] · [[Hydrogen_evolution_reaction]] · [[Fuel_cell]] · [[Crystal_engineering]].
<!-- WT:REPOP 2026-09-10 end -->
<!-- SECTIONSIMS:BEGIN g34 2026-09-19 - microsims the articles linked here play; generated by _tools/generate/g34_portal_section_sims.py; do not hand-edit inside -->
*Microsims from the articles linked below:*
<div class="wt-simrow">
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Atomic_nucleus.html" data-title="Atomic nucleus"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Catalysis.html" data-title="Catalysis"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Chemical_bond.html" data-title="Chemical bond"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Chemical_element.html" data-title="Chemical element"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Coulomb's_law.html" data-title="Coulomb's law"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Cryogenics.html" data-title="Cryogenics"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Crystal_structure.html" data-title="Crystal structure"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Doping_(semiconductor).html" data-title="Doping (semiconductor)"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Electrolysis_of_water.html" data-title="Electrolysis of water"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/solar/Solar_System.html?view=composition&embed=1" data-title="Rock inside, gas and ice outside (Solar System explorer)"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Groundwater.html" data-title="Groundwater"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Groundwater.html" data-title="Groundwater · thury"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Half-life.html" data-title="Half-life"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Helium.html" data-title="Helium"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Helium-3.html" data-title="Helium-3"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/solar/Solar_System.html?view=neighborhood&embed=1" data-title="Out to the nearest star (Solar System explorer)"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Ionic_bonding.html" data-title="Ionic bonding"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Lifting_gas.html" data-title="Lifting gas"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Noble_gas.html" data-title="Noble gas"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Nuclear_fusion.html" data-title="Nuclear fusion"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Nuclear_reactor.html" data-title="Nuclear reactor"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Nucleosynthesis.html" data-title="Nucleosynthesis"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Phase_(matter).html" data-title="Phase (matter)"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Phase_diagram.html" data-title="Phase diagram"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Plasma_(physics).html" data-title="Plasma (physics)"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Properties_of_water.html" data-title="Properties of water"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Redox.html" data-title="Redox"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Schrödinger_equation.html" data-title="Schrödinger equation"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/acoustics/Speed_of_sound.html" data-title="Speed of sound"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/solar/Solar_System.html?obj=Sun&embed=1" data-title="The Sun in the Solar System explorer"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Superconductivity.html" data-title="Superconductivity"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Thermal_conductivity_and_resistivity.html" data-title="Thermal conductivity and resistivity"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Vapour_pressure_of_water.html" data-title="Vapor pressure"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Viscosity.html" data-title="Viscosity"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Viscosity.html" data-title="Viscosity · thury"></div>
</div>
<!-- SECTIONSIMS:END -->
<!-- TREEGEN:BEGIN v1.4 src=_registry/linktree/Hydrogen.json harvested=2026-07-29T23:10:55Z children=695 — generated by g01_hub_portals.py; do not hand-edit inside this block -->
## Canonical link structure — 695 tree-verified children
Hub article: [[Hydrogen]] · tree harvested 2026-07-29T23:10:55Z · every entry below is in this hub's harvested
child tree (v09-gated). Unbuilt links are intentional forward-refs: the populate scaffold.
**0-9** — [[1,000,000,000]] · [[1,2,3,4-Tetrahydroquinoline]] · [[2001_Mars_Odyssey]]
**A** — [[Abundance_of_the_chemical_elements]] · [[Acid]] · [[Acid–base_reaction]] · [[Actinium]] · [[Activated_carbon]] · [[Active_site]] · [[Airship]] · [[Alkaline_earth_metal]] · [[Alkali_metal]] · [[Alkene]] · [[Alkyne]] · [[Alternative_fuel_vehicle]] · [[Aluminium]] · [[Aluminium_hydride]] · [[American_Institute_of_Chemical_Engineers]] · [[Americium]] · [[Ammonia]] · [[Ammonia_borane]] · [[Ammonia_production]] · [[Amorphous_carbon]] · [[Amorphous_metal]] · [[Amorphous_silicon]] · [[Ancient_Greek]] · [[Angular_momentum]] · [[Anode]] · [[Anoxic_waters]] · [[Antihydrogen]] · [[Antimatter]] · [[Antimony]] · [[Antioxidant]] · [[Antiproton]] · [[Antoine_Lavoisier]] · [[Aqueous_solution]] · [[Argon]] · [[Argon_fluorohydride]] · [[Arsenic]] · [[Arsenic_acid]] · [[Arsenous_acid]] · [[ArXiv]] · [[Astatine]] · [[Atmospheric_escape]] · [[Atmospheric_pressure]] · [[Atomic_hydrogen_welding]] · [[Atomic_nucleus]] · [[Atomic_number]] · [[Australia]] · [[Autoignition_temperature]]
**B** — [[Balloon]] · [[Balmer_series]] · [[Barium]] · [[Baryogenesis]] · [[Baryon]] · [[Base_pair]] · [[Battery_electric_vehicle]] · [[Berkelium]] · [[Beryllium]] · [[Beta_decay]] · [[Beta_particle]] · [[Bibcode]] · [[Big_Bang_nucleosynthesis]] · [[Biohydrogen]] · [[Bioreactor]] · [[Bismuth]] · [[Blimp]] · [[Block_(periodic_table)]] · [[Bohrium]] · [[Bohr_model]] · [[Boiling_point]] · [[Bond_dissociation_energy]] · [[Borane]] · [[Boron]] · [[Boron_group]] · [[Brian_Wirth]] · [[Bridging_ligand]] · [[Brine]] · [[Bromic_acid]] · [[Bromine]] · [[Bromous_acid]] · [[Brønsted–Lowry_acid–base_theory]]
**C** — [[Cadmium]] · [[Caesium]] · [[Calcium]] · [[Californium]] · [[Calvin_cycle]] · [[Cambridge_University_Press]] · [[CANDU_reactor]] · [[Carbon]] · [[Carbonic_acid]] · [[Carbon_Brief]] · [[Carbon_capture_and_storage]] · [[Carbon_group]] · [[Carbon_monoxide]] · [[CAS_Registry_Number]] · [[Catalysis]] · [[Cathode]] · [[Ceria_based_thermochemical_cycles]] · [[Cerium]] · [[Chain_reaction]] · [[Chalcogen]] · [[Chemical_bond]] · [[Chemical_compound]] · [[Chemical_element]] · [[Chemical_formula]] · [[Chemical_reaction]] · [[Chemical_symbol]] · [[Chlamydomonas_reinhardtii]] · [[Chloric_acid]] · [[Chlorine]] · [[Chloroauric_acid]] · [[Chloroosmic_acid]] · [[Chloroplast]] · [[Chloroplatinic_acid]] · [[Chlorous_acid]] · [[Chromic_acid]] · [[Chromium]] · [[Chronology_of_the_universe]] · [[CNO_cycle]] · [[Cobalt]] · [[Cobalt_tetracarbonyl_hydride]] · [[Coke_(fuel)]] · [[Columbia_University]] · [[Combined-cycle_power_plant]] · [[Combustibility_and_flammability]] · [[Commission_on_Isotopic_Abundances_and_Atomic_Weights]] · [[Computers_&_Chemical_Engineering]] · [[Conservation_of_mass]] · [[Coolant]] · [[Copernicium]] · [[Copper]] · [[Copper–chlorine_cycle]] · [[Cosmic_ray]] · [[Coulomb's_law]] · [[Covalent_bond]] · [[Covalent_radius]] · [[Cracking_(chemistry)]] · [[CRC_Handbook_of_Chemistry_and_Physics]] · [[CRC_Press]] · [[Critical_point_(thermodynamics)]] · [[Cryogenics]] · [[Cryogenic_fuel]] · [[Crystal_structure]] · [[Curium]] · [[Cyanobacteria]]
**D** — [[Damped_Lyman-alpha_system]] · [[Darmstadtium]] · [[Dayton,_Ohio]] · [[Decay_product]] · [[Density]] · [[Desulfurization]] · [[Detonation]] · [[Deuterium]] · [[De_Rivaz_engine]] · [[Diamagnetism]] · [[Diatomic_molecule]] · [[Diethyl_ether]] · [[Digital_object_identifier]] · [[Dihydrogen_cation]] · [[Dihydrogen_complex]] · [[Dirac_equation]] · [[Disulfuric_acid]] · [[Dithionic_acid]] · [[Doping_(semiconductor)]] · [[Dubnium]] · [[Dysprosium]] · [[Döbereiner's_lamp]]
**E** — [[East_Coast_of_the_United_States]] · [[Edward_Daniel_Clarke]] · [[Eigenvalues_and_eigenvectors]] · [[Einsteinium]] · [[Electric_arc_furnace]] · [[Electrode]] · [[Electrolysis]] · [[Electrolysis_of_water]] · [[Electrolyte]] · [[Electron]] · [[Electronegativity]] · [[Electronvolt]] · [[Electron_configuration]] · [[Electron_donor]] · [[Encyclopædia_Britannica]] · [[Energy_level]] · [[Energy_Research_&_Social_Science]] · [[Enthalpy_of_fusion]] · [[Enthalpy_of_vaporization]] · [[Erbium]] · [[Ernest_Rutherford]] · [[Ethane]] · [[European_Union]] · [[Europium]] · [[Excited_state]] · [[Exothermic_process]] · [[Exotic_atom]] · [[Extrinsic_semiconductor]] · [[E_number]]
**F** — [[Fayalite]] · [[Ferdinand_von_Zeppelin]] · [[Fermentation]] · [[Fermium]] · [[Ferrous]] · [[Fertilizer]] · [[Flame_detector]] · [[Flerovium]] · [[Fluorine]] · [[Fluoroboric_acid]] · [[Fluorosulfuric_acid]] · [[Food_additive]] · [[Forming_gas]] · [[Fossil_fuel]] · [[France]] · [[Francium]] · [[Frank_P._Incropera]] · [[François_Isaac_de_Rivaz]] · [[Fuel_cell]] · [[Fugitive_gas_emissions]] · [[Fulminic_acid]]
**G** — [[Gadolinium]] · [[Gallium]] · [[Gas]] · [[Gas_giant]] · [[Gas_venting]] · [[Genetic_code]] · [[Genetic_engineering]] · [[Germanium]] · [[Germany]] · [[GHS_hazard_pictograms]] · [[GHS_hazard_statements]] · [[GHS_precautionary_statements]] · [[Giant_planet]] · [[Gilbert_N._Lewis]] · [[Globally_Harmonized_System_of_Classification_and_Labelling_of_Chemicals]] · [[Gold]] · [[Gravity]] · [[Greece]] · [[Green_hydrogen]] · [[Groundwater]] · [[Ground_state]] · [[Group_(periodic_table)]] · [[Group_10_element]] · [[Group_11_element]] · [[Group_12_element]] · [[Group_3_element]] · [[Group_4_element]] · [[Group_5_element]] · [[Group_6_element]] · [[Group_7_element]] · [[Group_8_element]] · [[Group_9_element]] · [[Gut_microbiota]]
**H** — [[Haber_process]] · [[Hafnium]] · [[Half-life]] · [[Halogen]] · [[Handle_System]] · [[Harold_Urey]] · [[Hassium]] · [[Heat_of_combustion]] · [[Heavy_water]] · [[Helium]] · [[Helium-3]] · [[Henri_Giffard]] · [[Henry_Cavendish]] · [[Hertz]] · [[Heteroatom]] · [[Hexafluorosilicic_acid]] · [[Hexafluorozirconic_acid]] · [[Hexagonal_crystal_family]] · [[High_pressure]] · [[Hindenburg-class_airship]] · [[Hindenburg_disaster]] · [[History_of_atomic_theory]] · [[Holmium]] · [[Hubble_Space_Telescope]] · [[Hybrid_sulfur_cycle]] · [[Hydride]] · [[Hydrocarbon]] · [[Hydrochloric_acid]] · [[Hydrodesulfurization]] · [[Hydrogen-cooled_turbo_generator]] · [[Hydrogenase]] · [[Hydrogenation]] · [[Hydrogenolysis]] · [[Hydrogen_(disambiguation)]] · [[Hydrogen_astatide]] · [[Hydrogen_atom]] · [[Hydrogen_bond]] · [[Hydrogen_breath_test]] · [[Hydrogen_bromide]] · [[Hydrogen_chloride]] · [[Hydrogen_compounds]] · [[Hydrogen_cyanide]] · [[Hydrogen_cycle]] · [[Hydrogen_disulfide]] · [[Hydrogen_economy]] · [[Hydrogen_embrittlement]] · [[Hydrogen_fluoride]] · [[Hydrogen_iodide]] · [[Hydrogen_isocyanide]] · [[Hydrogen_line]] · [[Hydrogen_peroxide]] · [[Hydrogen_production]] · [[Hydrogen_safety]] · [[Hydrogen_selenide]] · [[Hydrogen_spectral_series]] · [[Hydrogen_sulfide]] · [[Hydrogen_technologies]] · [[Hydrogen_telluride]] · [[Hydrogen_transport]] · [[Hydron]] · [[Hydronium]] · [[Hyperfine_structure]] · [[HyperPhysics]] · [[Hypobromous_acid]] · [[Hypochlorous_acid]] · [[Hypofluorous_acid]] · [[Hypoiodous_acid]] · [[Hyponitrous_acid]] · [[Hypophosphorous_acid]] · [[H_II_region]]
**I** — [[Inch_of_mercury]] · [[Indium]] · [[Inert_gas_asphyxiation]] · [[Inorganic_Chemistry_(journal)]] · [[Intergovernmental_Panel_on_Climate_Change]] · [[International_Energy_Agency]] · [[International_Renewable_Energy_Agency]] · [[International_Space_Station]] · [[International_Union_of_Pure_and_Applied_Chemistry]] · [[Interstellar_medium]] · [[Iodic_acid]] · [[Iodine]] · [[Iodous_acid]] · [[Ion]] · [[Ionic_bonding]] · [[Ionization]] · [[Ionization_energy]] · [[IPCC_Sixth_Assessment_Report]] · [[Iridium]] · [[Iron]] · [[Iron(III)_oxide]] · [[Iron_filings]] · [[Iron_oxide]] · [[Iron_oxide_cycle]] · [[Iron–nickel_alloy]] · [[ISBN]] · [[Isocyanic_acid]] · [[Isotopes_of_helium]] · [[Isotopes_of_hydrogen]] · [[Isotope_geochemistry]] · [[ISSN]] · [[IUPAC_nomenclature_of_chemistry]]
**J** — [[Jacques_Charles]] · [[James_Clerk_Maxwell]] · [[James_Dewar]] · [[Japan]] · [[John_A._Peacock]] · [[Joule]] · [[Joule_per_mole]] · [[Journal_of_Biomolecular_NMR]] · [[JSTOR]] · [[Jupiter]]
**K** — [[Keith_Olive]] · [[Kelvin]] · [[Kinetic_isotope_effect]] · [[Krypton]]
**L** — [[Lanthanum]] · [[Lattice_constant]] · [[Lawrence_Berkeley_National_Laboratory]] · [[Lawrencium]] · [[Lead]] · [[Leak_detection]] · [[Lifting_gas]] · [[Ligand]] · [[Limelight]] · [[Liquefaction]] · [[Liquid-propellant_rocket]] · [[Liquid_hydrogen]] · [[Liquid_oxygen]] · [[List_of_chemical_element_name_etymologies]] · [[List_of_data_references_for_chemical_elements]] · [[Literal_translation]] · [[Lithium]] · [[Lithium_aluminium_hydride]] · [[Lithium_hydride]] · [[Livermorium]] · [[Logarithmic_scale]] · [[Lone_pair]] · [[Long-Qing_Chen]] · [[Luminous_paint]] · [[Lutetium]] · [[LZ_129_Hindenburg]]
**M** — [[Magnesium]] · [[Magnesium_oxide]] · [[Magnetic_susceptibility]] · [[Magnetism]] · [[Mali]] · [[Manganate]] · [[Manganese]] · [[Margarine]] · [[Mark_Oliphant]] · [[Mars_Global_Surveyor]] · [[Mass]] · [[Mass_fraction_(chemistry)]] · [[Meitnerium]] · [[Melting_point]] · [[Mendelevium]] · [[Mercury_(element)]] · [[Metallic_hydrogen]] · [[Methane]] · [[Methanol]] · [[Metre_per_second]] · [[Mildred_Dresselhaus]] · [[Molar_heat_capacity]] · [[Molar_mass]] · [[Molecular_cloud]] · [[Molecule]] · [[Mole_(unit)]] · [[Molybdenum]] · [[Molybdic_acid]] · [[Moscovium]] · [[Muon]] · [[Muonium]] · [[Mycobacterium_smegmatis]]
**N** — [[Nanometre]] · [[NASA]] · [[National_Academies_Press]] · [[National_Institute_of_Standards_and_Technology]] · [[Natural_abundance]] · [[Natural_gas]] · [[Natural_hydrogen]] · [[Neodymium]] · [[Neon]] · [[Neptunium]] · [[Neutron]] · [[Neutron_diffraction]] · [[Neutron_moderator]] · [[New_Jersey]] · [[New_York_City]] · [[NFPA_704]] · [[NGC_604]] · [[Nickel]] · [[Nickel–hydrogen_battery]] · [[Nihonium]] · [[Niobium]] · [[Nitric_acid]] · [[Nitrogen]] · [[Nitrosylsulfuric_acid]] · [[Nitrous_acid]] · [[Nitroxyl]] · [[Nobelium]] · [[Noble_gas]] · [[Nonmetallic_material]] · [[Norman_Greenwood]] · [[NOx]] · [[Nuclear_fuel]] · [[Nuclear_fusion]] · [[Nuclear_isomer]] · [[Nuclear_magnetic_resonance_spectroscopy]] · [[Nuclear_reactor]] · [[Nuclear_weapons_testing]] · [[Nucleosynthesis]] · [[Nuclide]]
**O** — [[OCLC]] · [[Oganesson]] · [[Ore]] · [[Organic_compound]] · [[Osmium]] · [[Outer_space]] · [[Oxidation_state]] · [[Oxonium_ion]] · [[Oxygen]]
**P** — [[Palladium]] · [[Particle_Data_Group]] · [[Parts-per_notation]] · [[Pascal_(unit)]] · [[Passivation_(chemistry)]] · [[Paul_Harteck]] · [[Pearson_symbol]] · [[Pentaoxidane]] · [[Perbromic_acid]] · [[Perchloric_acid]] · [[Periodic_acid]] · [[Periodic_table]] · [[Periodic_Videos]] · [[Period_(periodic_table)]] · [[Period_1_element]] · [[Period_2_element]] · [[Period_3_element]] · [[Period_4_element]] · [[Period_5_element]] · [[Period_6_element]] · [[Period_7_element]] · [[Permanganic_acid]] · [[Peroxydisulfuric_acid]] · [[Peroxymonosulfuric_acid]] · [[PH]] · [[Phase_(matter)]] · [[Phase_diagram]] · [[Phlogiston_theory]] · [[Phosphor]] · [[Phosphoric_acid]] · [[Phosphorous_acid]] · [[Phosphorus]] · [[Photochemistry]] · [[Photon]] · [[Photosynthesis]] · [[Physical_cosmology]] · [[Physical_Review]] · [[Picometre]] · [[Pierre-Simon_Laplace]] · [[Plasma_(physics)]] · [[Platinum]] · [[Plutonium]] · [[Pnictogen]] · [[Polonium]] · [[Polonium_hydride]] · [[Positron]] · [[Potassium]] · [[Pound_per_square_inch]] · [[Prandtl_number]] · [[Praseodymium]] · [[Pressure_swing_adsorption]] · [[Primary_atmosphere]] · [[Primordial_nuclide]] · [[Progress_in_Materials_Science]] · [[Promethium]] · [[Propane]] · [[Properties_of_water]] · [[Protactinium]] · [[Protein_folding]] · [[Proton]] · [[Proton–proton_chain]] · [[PubMed]] · [[PubMed_Central]] · [[Pure_and_Applied_Chemistry]] · [[Pyrolysis]] · [[Pyrophosphoric_acid]]
**Q** — [[Quantization_(physics)]] · [[Quantum_mechanics]] · [[Quantum_number]]
**R** — [[R33-class_airship]] · [[Radioactive_decay]] · [[Radioactive_tracer]] · [[Radium]] · [[Radon]] · [[Rare-earth_element]] · [[Recombination_(cosmology)]] · [[Redox]] · [[Redshift]] · [[Reducing_agent]] · [[Regenerative_cooling]] · [[Reionization]] · [[Relativistic_quantum_mechanics]] · [[Rhenium]] · [[Rhodium]] · [[Rigid_airship]] · [[RMI_(energy_organization)]] · [[Robert_Boyle]] · [[Rocket_propellant]] · [[Roentgenium]] · [[Romanization_of_Greek]] · [[Room_temperature]] · [[Rotational–vibrational_spectroscopy]] · [[RS-25]] · [[Rubidium]] · [[Ruthenium]] · [[Rutherfordium]]
**S** — [[Salt_(chemistry)]] · [[Samarium]] · [[Saturated_and_unsaturated_compounds]] · [[Scandium]] · [[Schikorr_reaction]] · [[Schrödinger_equation]] · [[Science_(journal)]] · [[Seaborgium]] · [[Selenic_acid]] · [[Selenium]] · [[Selenous_acid]] · [[Self-energy]] · [[Semantic_Scholar]] · [[Semiconductor_device_fabrication]] · [[Serpentinization]] · [[Shielding_gas]] · [[Silicic_acid]] · [[Silicon]] · [[Silver]] · [[Singlet_state]] · [[Slush_hydrogen]] · [[Sodium]] · [[Sodium_bicarbonate]] · [[Sodium_hydride]] · [[Soil_chemistry]] · [[Solid_hydrogen]] · [[Solubility]] · [[Specific_heat_capacity]] · [[Spectral_line]] · [[Speed_of_sound]] · [[Spin_(physics)]] · [[Spin_isomers_of_hydrogen]] · [[Spin_quantum_number]] · [[Stable_nuclide]] · [[Standard_atmosphere_(unit)]] · [[Standard_atomic_weight]] · [[Standard_temperature_and_pressure]] · [[Star]] · [[Star_formation]] · [[Steam]] · [[Steam_reforming]] · [[Steel]] · [[Steelmaking]] · [[Stoichiometry]] · [[Strontium]] · [[Strömgren_sphere]] · [[Sulfamic_acid]] · [[Sulfur]] · [[Sulfuric_acid]] · [[Sulfurous_acid]] · [[Sulfur–iodine_cycle]] · [[Sun]] · [[Superconductivity]] · [[Syngas]] · [[Synthetic_fuel]]
**T** — [[Tantalum]] · [[Technetium]] · [[Technical_University_of_Denmark]] · [[Telluric_acid]] · [[Tellurium]] · [[Tellurous_acid]] · [[Tennessine]] · [[Terbium]] · [[Tetraoxidane]] · [[Thallium]] · [[Thermal_conductivity_and_resistivity]] · [[Thermal_diffusivity]] · [[Thermonuclear_weapon]] · [[The_Hype_About_Hydrogen]] · [[Thiocarbonic_acid]] · [[Thiocyanic_acid]] · [[Thiosulfuric_acid]] · [[Thorium]] · [[Thulium]] · [[Timeline_of_chemical_element_discoveries]] · [[Timeline_of_hydrogen_technologies]] · [[Tin]] · [[Titanic_acid]] · [[Titanium]] · [[Tonne]] · [[Tracer-gas_leak_testing]] · [[Trace_radioisotope]] · [[Transducer]] · [[Transition_metal]] · [[Triangulum_Galaxy]] · [[Triatomic_hydrogen]] · [[Trichloromethanesulfonic_acid]] · [[Triflic_acid]] · [[Trihydrogen_cation]] · [[Trihydrogen_oxide]] · [[Trioxidane]] · [[Triphosphoric_acid]] · [[Triplet_state]] · [[Triple_point]] · [[Tritium]] · [[Tritium_radioluminescence]] · [[Tungsten]]
**U** — [[Ultraviolet]] · [[United_States]] · [[Unsaturated_fat]] · [[Uranium]]
**V** — [[Vacuum_flask]] · [[Vacuum_polarization]] · [[Vanadium]] · [[Van_der_Waals_radius]] · [[Vapor_pressure]] · [[Variable_renewable_energy]] · [[Vegetable_oil]] · [[Viscosity]] · [[Volume_fraction]]
**W** — [[Water]] · [[Water_splitting]] · [[Water_table]] · [[Water–gas_shift_reaction]] · [[Wayback_Machine]] · [[Weather_balloon]] · [[Welding]]
**X** — [[Xenon]]
**Y** — [[Yale_Environment_360]] · [[Ytterbium]] · [[Yttrium]]
**Z** — [[Zeppelin]] · [[Zinc]] · [[Zinc_oxide]] · [[Zinc–zinc_oxide_cycle]] · [[Zirconium]]
## Route objects (§10.3 stubs — placeholders declared in `_registry/firebase/`)
- **microsim** — `microsim/{library}/Hydrogen__{YYYYMMDD}T{HHMM}Z/`
- **songs** — `songs/{Band_name}/{Song_name}/Hydrogen/`
- **semiotics** — `semiotics/{authorizer}/{set}/{Song_name}/{audio_video_id}/Hydrogen/`
- **cardset** — `cardset/{authorizer}/{set}/Hydrogen/`
- **games** — `games/quizzes/Hydrogen/`
- **channel_stream** — `channel_stream/Hydrogen/`
- **transcripts** — `transcripts/{audio_video_id}/Hydrogen/`
Hub + children route keys are pre-declared in `_registry/firebase/expansion_matches.csv`
(54,000 Related Wikipedia Matches). Minting any leaf passes §10.1 registration.
<!-- TREEGEN:END -->
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*Repopulated 2026-09-19 · append-only · source: _tools/generate/g34_portal_section_sims.py@36068b13 (players of the linked articles, each URL 200-checked) · 1 added · 0 deletions*