The door to the shared core of physical science, and the page the `/matter/` sims name as their home.
Four flagships — [[Chemistry]], [[Materials_science]], [[Energy]], [[Physics]] — were built as one run rather than
four, because built separately they would collide on everything they share. An atom drawn for Chemistry is the atom
Materials puts in a lattice and Physics puts in a box; the entropy Energy defines is the entropy Chemistry spends
and Physics counts; the p–n junction Materials owns is the solar cell Energy sells. So the cluster builds each
shared concept **once, by its owner**, and places it wherever else it belongs: one pack, one framework tier, one
sim set, one deploy.
This portal is the spine of that shared middle. The four room portals below are the doors to each flagship's own
sections; this one carries two tables the rooms do not: **the set** — all 107 microsims in one place, which is the
whole point of a portal — and **the shared core**, the 42 concepts all four flagships stand on.
- **Set:** `https://wikitube-3d-microsims.netlify.app/matter/` — **107 sims, all answering 200**
- **Pack:** `specs/portals/PORTAL_Matter_Energy.pack.json` — one pack, four portals, kicker "Wikitube - Matter & Energy"
- **Frameworks:** `wt-chem` · `wt-solid` · `wt-energy` · `wt-mech` · `wt-quantum` · `wt-em` · `wt-stat` · `wt-nuclear`,
on top of `wt-core`, `wt-fields`, `wt-particles`, `wt-ode`, `wt-rigs`, `wt-hydro`, `wt-matter`
- **Contract:** `_registry/plans/MATTER_ENERGY_CLUSTER_SECTIONS.md` · **state:** `_registry/plans/MATTER_ENERGY_RUN_SHEET_2026-09-19.md`
## The four rooms
| Portal | Flagship | Map | Sim cards on the portal |
|---|---|---|---|
| [[PORTAL_Chemistry]] | [[Chemistry]] | `CHEMISTRY_SECTIONS.md` | 26 |
| [[PORTAL_Materials_science]] | [[Materials_science]] | `MATERIALS_SCIENCE_SECTIONS.md` | 22 |
| [[PORTAL_Energy]] | [[Energy]] | `ENERGY_SECTIONS.md` | 81 |
| [[PORTAL_Physics]] | [[Physics]] | `PHYSICS_SECTIONS.md` | 61 |
Fluids are not in this table and never will be: [[PORTAL_Thury_Hydrodynamics_Apex_Spine]] owns them, and the four
rooms place the `/thury/` sims rather than rebuilding them. The same holds for Hydrogen, Oxygen, Helium and
Helium-3, whose pages belong to the Thury spine.
## The set — every microsim in `/matter/`
<!-- 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/matter/Arrhenius_equation.html" data-title="Arrhenius equation"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Aufbau_principle.html" data-title="Aufbau principle"></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 · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Chemical_kinetics.html" data-title="Chemical kinetics"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Chemical_thermodynamics.html" data-title="Chemical thermodynamics"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Dalton's_law.html" data-title="Dalton's law"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Graham's_law.html" data-title="Graham's law"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Intermolecular_force.html" data-title="Intermolecular force"></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/matter/Molecular_geometry.html" data-title="Molecular geometry"></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/Redox.html" data-title="Redox"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Spectroscopy.html" data-title="Spectroscopy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Steady_state_(chemistry).html" data-title="Steady state (chemistry)"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Alloy.html" data-title="Alloy · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Band_gap.html" data-title="Band gap"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Corrosion.html" data-title="Corrosion · matter"></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/Debye_model.html" data-title="Debye model"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Dislocation.html" data-title="Dislocation"></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/matter/Electrical_resistivity_and_conductivity.html" data-title="Electrical resistivity and conductivity"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Electronic_band_structure.html" data-title="Electronic band structure"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Eutectic_system.html" data-title="Eutectic system"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Fatigue_(material).html" data-title="Fatigue (material) · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Fick's_laws_of_diffusion.html" data-title="Fick's laws of diffusion"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Fracture_mechanics.html" data-title="Fracture mechanics · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Galvanic_corrosion.html" data-title="Galvanic corrosion"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Grain_boundary.html" data-title="Grain boundary"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Nanoparticle.html" data-title="Nanoparticle"></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/matter/Polymer.html" data-title="Polymer"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Pourbaix_diagram.html" data-title="Pourbaix diagram"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/P–n_junction.html" data-title="P–n junction"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Rubber_elasticity.html" data-title="Rubber elasticity"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Stress–strain_curve.html" data-title="Stress–strain curve · matter"></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/matter/Thermal_expansion.html" data-title="Thermal expansion"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Viscoelasticity.html" data-title="Viscoelasticity"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Work_hardening.html" data-title="Work hardening"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/X-ray_crystallography.html" data-title="X-ray crystallography"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Chemical_energy.html" data-title="Chemical energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Closed_system.html" data-title="Closed system"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Conservation_of_energy.html" data-title="Conservation of energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Control_volume.html" data-title="Control volume"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Electric_battery.html" data-title="Electric battery"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Electric_generator.html" data-title="Electric generator · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Electric_power_transmission.html" data-title="Electric power transmission · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Electrical_grid.html" data-title="Electrical grid · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Energy_storage.html" data-title="Energy storage"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/First_law_of_thermodynamics.html" data-title="First law of thermodynamics"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Flywheel_energy_storage.html" data-title="Flywheel energy storage"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Geothermal_energy.html" data-title="Geothermal energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Heat_engine.html" data-title="Heat engine"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Heat_transfer.html" data-title="Heat transfer · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Internal_energy.html" data-title="Internal energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Irreversible_process.html" data-title="Irreversible process"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Kinetic_energy.html" data-title="Kinetic energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Lithium-ion_battery.html" data-title="Lithium-ion battery"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Mechanical_energy.html" data-title="Mechanical energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Nuclear_chain_reaction.html" data-title="Nuclear chain reaction"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Nuclear_fuel_cycle.html" data-title="Nuclear fuel cycle"></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/matter/Potential_energy.html" data-title="Potential energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Rankine_cycle.html" data-title="Rankine cycle"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Solar_cell.html" data-title="Solar cell"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Solar_thermal_energy.html" data-title="Solar thermal energy"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Thermal_conduction.html" data-title="Thermal conduction"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Thermal_radiation.html" data-title="Thermal radiation"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Thermodynamic_cycle.html" data-title="Thermodynamic cycle"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Tidal_power.html" data-title="Tidal power"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Wind_power.html" data-title="Wind power"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Wind_turbine.html" data-title="Wind turbine"></div>
<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/Black-body_radiation.html" data-title="Black-body radiation"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Bloch's_theorem.html" data-title="Bloch's theorem"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Boltzmann's_entropy_formula.html" data-title="Boltzmann's entropy formula"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Boltzmann_distribution.html" data-title="Boltzmann distribution"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Coulomb's_law.html" data-title="Coulomb's law · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Doppler_effect.html" data-title="Doppler effect · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Double-slit_experiment.html" data-title="Double-slit experiment"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Faraday's_law_of_induction.html" data-title="Faraday's law of induction"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Ferromagnetism.html" data-title="Ferromagnetism"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Free_fall.html" data-title="Free fall"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Fusion_power.html" data-title="Fusion power"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Harmonic_oscillator.html" data-title="Harmonic oscillator · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Ising_model.html" data-title="Ising model"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Kepler's_laws_of_planetary_motion.html" data-title="Kepler's laws of planetary motion"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Lorentz_force.html" data-title="Lorentz force"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Mass–energy_equivalence.html" data-title="Mass–energy equivalence"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Maxwell's_equations.html" data-title="Maxwell's equations"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Maxwell–Boltzmann_distribution.html" data-title="Maxwell–Boltzmann distribution"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Momentum.html" data-title="Momentum"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Newton's_law_of_universal_gravitation.html" data-title="Newton's law of universal gravitation"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Newton's_laws_of_motion.html" data-title="Newton's laws of motion · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Nuclear_fission.html" data-title="Nuclear fission"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Pendulum.html" data-title="Pendulum · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Photoelectric_effect.html" data-title="Photoelectric effect"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Quantum_harmonic_oscillator.html" data-title="Quantum harmonic oscillator"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Quantum_tunnelling.html" data-title="Quantum tunnelling"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Schrödinger_equation.html" data-title="Schrödinger equation · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Snell's_law.html" data-title="Snell's law"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Special_relativity.html" data-title="Special relativity"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Wave.html" data-title="Wave · matter"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/matter/Decay_chain.html" data-title="Decay chain · matter"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/SpKvtopBR" data-title="Chemical element · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/XyffhwPcd" data-title="Alloy · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/lzAm1zjcY" data-title="Corrosion · p5.js"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/engineering/Fatigue_(material).html" data-title="Fatigue (material) · engineering"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/19WPH9qZj" data-title="Fatigue (material) · p5.js"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/engineering/Fracture_mechanics.html" data-title="Fracture mechanics · engineering"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/YcQoz_cJ4" data-title="Fracture mechanics · p5.js"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/engineering/Stress–strain_curve.html" data-title="Stress–strain curve · engineering"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/Electric_generator.html" data-title="Electric generator"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/xsQloH63c" data-title="Electric power transmission · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/o-KZ5R9hV" data-title="Electrical grid · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/QRea-7JU3" data-title="Heat transfer · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/4LA9cgSrE" data-title="Coulomb's law · p5.js"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/acoustics/Doppler_effect.html" data-title="Doppler effect · acoustics"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/acoustics/Harmonic_oscillator.html" data-title="Harmonic oscillator · acoustics"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/4YJFtvZAg" data-title="Harmonic oscillator · p5.js"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/solar/Solar_System.html?view=orbits&embed=1" data-title="The orbits (Solar System explorer)"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/ONl3-NO3g" data-title="Newton's laws of motion · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/vtdlSNRup" data-title="Pendulum · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/zMq3oG9Pf" data-title="Schrödinger equation · p5.js"></div>
<div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/acoustics/Wave.html" data-title="Wave · acoustics"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/pQPM1m6eN" data-title="Wave · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/cS_SZr-RA" data-title="Decay chain · p5.js"></div>
<div class="wt-sim" data-src="https://editor.p5js.org/sciencenibber/full/dRi1gJpsi" data-title="Decay chain · p5.js (2)"></div>
</div>
<!-- SECTIONSIMS:END -->
The 107 sims this cluster owns, in one table, each verified against the live host on 2026-09-19:
**107 of 107 answer 200**. *Owner row* is the section-map row that builds the sim; *also placed on* names the
other rows that embed it a second, third or fourth time. Grouping is by the flagship that owns the row, not by
where a reader meets the sim — a Materials sim placed on Energy appears once, under Materials.
| # | Article | Owner row | Microsim | Also placed on | Node |
|---|---|---|---|---|---|
| | **Chemistry — 16 sims** | | | | |
| 1 | [[Arrhenius_equation]] | K33 | live · https://wikitube-3d-microsims.netlify.app/matter/Arrhenius_equation.html | — | ring:0 |
| 2 | [[Aufbau_principle]] | K6 | live · https://wikitube-3d-microsims.netlify.app/matter/Aufbau_principle.html | — | ring:1 |
| 3 | [[Catalysis]] | K34 | live · https://wikitube-3d-microsims.netlify.app/matter/Catalysis.html | — | ring:2 |
| 4 | [[Chemical_bond]] | K18 | live · https://wikitube-3d-microsims.netlify.app/matter/Chemical_bond.html | — | ring:3 |
| 5 | [[Chemical_element]] | K8 | live · https://wikitube-3d-microsims.netlify.app/matter/Chemical_element.html | — | ring:4 |
| 6 | [[Chemical_kinetics]] | K32 | live · https://wikitube-3d-microsims.netlify.app/matter/Chemical_kinetics.html | — | ring:5 |
| 7 | [[Chemical_thermodynamics]] | K24 | live · https://wikitube-3d-microsims.netlify.app/matter/Chemical_thermodynamics.html | E16 (Energy) | ring:6 |
| 8 | [[Dalton's_law]] | K51 | live · https://wikitube-3d-microsims.netlify.app/matter/Dalton's_law.html | — | ring:7 |
| 9 | [[Graham's_law]] | K52 | live · https://wikitube-3d-microsims.netlify.app/matter/Graham's_law.html | — | ring:8 |
| 10 | [[Intermolecular_force]] | K21 | live · https://wikitube-3d-microsims.netlify.app/matter/Intermolecular_force.html | — | ring:9 |
| 11 | [[Ionic_bonding]] | K19 | live · https://wikitube-3d-microsims.netlify.app/matter/Ionic_bonding.html | — | ring:10 |
| 12 | [[Molecular_geometry]] | K11 | live · https://wikitube-3d-microsims.netlify.app/matter/Molecular_geometry.html | — | ring:11 |
| 13 | [[Phase_(matter)]] | K14 | live · https://wikitube-3d-microsims.netlify.app/matter/Phase_(matter).html | — | ring:12 |
| 14 | [[Redox]] | K43 | live · https://wikitube-3d-microsims.netlify.app/matter/Redox.html | — | ring:13 |
| 15 | [[Spectroscopy]] | K30 | live · https://wikitube-3d-microsims.netlify.app/matter/Spectroscopy.html | — | ring:14 |
| 16 | [[Steady_state_(chemistry)]] | K35 | live · https://wikitube-3d-microsims.netlify.app/matter/Steady_state_(chemistry).html | — | ring:15 |
| | **Materials science — 27 sims** | | | | |
| 17 | [[Alloy]] | M51 | live · https://wikitube-3d-microsims.netlify.app/matter/Alloy.html | — | ring:16 |
| 18 | [[Band_gap]] | M39 | live · https://wikitube-3d-microsims.netlify.app/matter/Band_gap.html | — | ring:17 |
| 19 | [[Corrosion]] | M54 | live · https://wikitube-3d-microsims.netlify.app/matter/Corrosion.html | — | ring:18 |
| 20 | [[Crystal_structure]] | M5 | live · https://wikitube-3d-microsims.netlify.app/matter/Crystal_structure.html | K64 (Chemistry) | ring:19 |
| 21 | [[Debye_model]] | M14 | live · https://wikitube-3d-microsims.netlify.app/matter/Debye_model.html | — | ring:20 |
| 22 | [[Dislocation]] | M7 | live · https://wikitube-3d-microsims.netlify.app/matter/Dislocation.html | — | ring:21 |
| 23 | [[Doping_(semiconductor)]] | M38 | live · https://wikitube-3d-microsims.netlify.app/matter/Doping_(semiconductor).html | — | ring:22 |
| 24 | [[Electrical_resistivity_and_conductivity]] | M18 | live · https://wikitube-3d-microsims.netlify.app/matter/Electrical_resistivity_and_conductivity.html | — | ring:23 |
| 25 | [[Electronic_band_structure]] | M37 | live · https://wikitube-3d-microsims.netlify.app/matter/Electronic_band_structure.html | — | ring:24 |
| 26 | [[Eutectic_system]] | M26 | live · https://wikitube-3d-microsims.netlify.app/matter/Eutectic_system.html | — | ring:25 |
| 27 | [[Fatigue_(material)]] | M13 | live · https://wikitube-3d-microsims.netlify.app/matter/Fatigue_(material).html | — | ring:26 |
| 28 | [[Fick's_laws_of_diffusion]] | M30 | live · https://wikitube-3d-microsims.netlify.app/matter/Fick's_laws_of_diffusion.html | — | ring:27 |
| 29 | [[Fracture_mechanics]] | M12 | live · https://wikitube-3d-microsims.netlify.app/matter/Fracture_mechanics.html | — | ring:28 |
| 30 | [[Galvanic_corrosion]] | M55 | live · https://wikitube-3d-microsims.netlify.app/matter/Galvanic_corrosion.html | — | ring:29 |
| 31 | [[Grain_boundary]] | M9 | live · https://wikitube-3d-microsims.netlify.app/matter/Grain_boundary.html | — | ring:30 |
| 32 | [[Nanoparticle]] | M8 | live · https://wikitube-3d-microsims.netlify.app/matter/Nanoparticle.html | — | ring:31 |
| 33 | [[Phase_diagram]] | M24 | live · https://wikitube-3d-microsims.netlify.app/matter/Phase_diagram.html | — | ring:32 |
| 34 | [[Polymer]] | M48 | live · https://wikitube-3d-microsims.netlify.app/matter/Polymer.html | — | ring:33 |
| 35 | [[Pourbaix_diagram]] | M56 | live · https://wikitube-3d-microsims.netlify.app/matter/Pourbaix_diagram.html | — | ring:34 |
| 36 | [[P–n_junction]] | M59 | live · https://wikitube-3d-microsims.netlify.app/matter/P–n_junction.html | — | ring:35 |
| 37 | [[Rubber_elasticity]] | M50 | live · https://wikitube-3d-microsims.netlify.app/matter/Rubber_elasticity.html | — | ring:36 |
| 38 | [[Stress–strain_curve]] | M11 | live · https://wikitube-3d-microsims.netlify.app/matter/Stress–strain_curve.html | — | ring:37 |
| 39 | [[Thermal_conductivity_and_resistivity]] | M17 | live · https://wikitube-3d-microsims.netlify.app/matter/Thermal_conductivity_and_resistivity.html | — | ring:38 |
| 40 | [[Thermal_expansion]] | M15 | live · https://wikitube-3d-microsims.netlify.app/matter/Thermal_expansion.html | — | ring:39 |
| 41 | [[Viscoelasticity]] | M49 | live · https://wikitube-3d-microsims.netlify.app/matter/Viscoelasticity.html | — | ring:40 |
| 42 | [[Work_hardening]] | M20 | live · https://wikitube-3d-microsims.netlify.app/matter/Work_hardening.html | — | ring:41 |
| 43 | [[X-ray_crystallography]] | M6 | live · https://wikitube-3d-microsims.netlify.app/matter/X-ray_crystallography.html | — | ring:42 |
| | **Energy — 32 sims** | | | | |
| 44 | [[Chemical_energy]] | E4 | live · https://wikitube-3d-microsims.netlify.app/matter/Chemical_energy.html | — | ring:43 |
| 45 | [[Closed_system]] | E60 | live · https://wikitube-3d-microsims.netlify.app/matter/Closed_system.html | — | ring:44 |
| 46 | [[Conservation_of_energy]] | E54 | live · https://wikitube-3d-microsims.netlify.app/matter/Conservation_of_energy.html | — | ring:45 |
| 47 | [[Control_volume]] | E61 | live · https://wikitube-3d-microsims.netlify.app/matter/Control_volume.html | — | ring:46 |
| 48 | [[Electric_battery]] | E19 | live · https://wikitube-3d-microsims.netlify.app/matter/Electric_battery.html | — | ring:47 |
| 49 | [[Electric_generator]] | E35 | live · https://wikitube-3d-microsims.netlify.app/matter/Electric_generator.html | — | ring:48 |
| 50 | [[Electric_power_transmission]] | E36 | live · https://wikitube-3d-microsims.netlify.app/matter/Electric_power_transmission.html | — | ring:49 |
| 51 | [[Electrical_grid]] | E37 | live · https://wikitube-3d-microsims.netlify.app/matter/Electrical_grid.html | — | ring:50 |
| 52 | [[Energy_storage]] | E62 | live · https://wikitube-3d-microsims.netlify.app/matter/Energy_storage.html | — | ring:51 |
| 53 | [[First_law_of_thermodynamics]] | E69 | live · https://wikitube-3d-microsims.netlify.app/matter/First_law_of_thermodynamics.html | — | ring:52 |
| 54 | [[Flywheel_energy_storage]] | E64 | live · https://wikitube-3d-microsims.netlify.app/matter/Flywheel_energy_storage.html | — | ring:53 |
| 55 | [[Geothermal_energy]] | E45 | live · https://wikitube-3d-microsims.netlify.app/matter/Geothermal_energy.html | — | ring:54 |
| 56 | [[Heat_engine]] | E32 | live · https://wikitube-3d-microsims.netlify.app/matter/Heat_engine.html | — | ring:55 |
| 57 | [[Heat_transfer]] | E56 | live · https://wikitube-3d-microsims.netlify.app/matter/Heat_transfer.html | — | ring:56 |
| 58 | [[Internal_energy]] | E67 | live · https://wikitube-3d-microsims.netlify.app/matter/Internal_energy.html | — | ring:57 |
| 59 | [[Irreversible_process]] | E53 | live · https://wikitube-3d-microsims.netlify.app/matter/Irreversible_process.html | — | ring:58 |
| 60 | [[Kinetic_energy]] | E2 | live · https://wikitube-3d-microsims.netlify.app/matter/Kinetic_energy.html | — | ring:59 |
| 61 | [[Lithium-ion_battery]] | E20 | live · https://wikitube-3d-microsims.netlify.app/matter/Lithium-ion_battery.html | — | ring:60 |
| 62 | [[Mechanical_energy]] | E15 | live · https://wikitube-3d-microsims.netlify.app/matter/Mechanical_energy.html | — | ring:61 |
| 63 | [[Nuclear_chain_reaction]] | E48 | live · https://wikitube-3d-microsims.netlify.app/matter/Nuclear_chain_reaction.html | — | ring:62 |
| 64 | [[Nuclear_fuel_cycle]] | E50 | live · https://wikitube-3d-microsims.netlify.app/matter/Nuclear_fuel_cycle.html | — | ring:63 |
| 65 | [[Nuclear_reactor]] | E49 | live · https://wikitube-3d-microsims.netlify.app/matter/Nuclear_reactor.html | — | ring:64 |
| 66 | [[Potential_energy]] | E3 | live · https://wikitube-3d-microsims.netlify.app/matter/Potential_energy.html | — | ring:65 |
| 67 | [[Rankine_cycle]] | E34 | live · https://wikitube-3d-microsims.netlify.app/matter/Rankine_cycle.html | — | ring:66 |
| 68 | [[Solar_cell]] | E38 | live · https://wikitube-3d-microsims.netlify.app/matter/Solar_cell.html | — | ring:67 |
| 69 | [[Solar_thermal_energy]] | E40 | live · https://wikitube-3d-microsims.netlify.app/matter/Solar_thermal_energy.html | — | ring:68 |
| 70 | [[Thermal_conduction]] | E57 | live · https://wikitube-3d-microsims.netlify.app/matter/Thermal_conduction.html | — | ring:69 |
| 71 | [[Thermal_radiation]] | E59 | live · https://wikitube-3d-microsims.netlify.app/matter/Thermal_radiation.html | — | ring:70 |
| 72 | [[Thermodynamic_cycle]] | E33 | live · https://wikitube-3d-microsims.netlify.app/matter/Thermodynamic_cycle.html | — | ring:71 |
| 73 | [[Tidal_power]] | E44 | live · https://wikitube-3d-microsims.netlify.app/matter/Tidal_power.html | — | ring:72 |
| 74 | [[Wind_power]] | E41 | live · https://wikitube-3d-microsims.netlify.app/matter/Wind_power.html | — | ring:73 |
| 75 | [[Wind_turbine]] | E42 | live · https://wikitube-3d-microsims.netlify.app/matter/Wind_turbine.html | — | ring:74 |
| | **Physics — 31 sims** | | | | |
| 76 | [[Atomic_nucleus]] | P48 | live · https://wikitube-3d-microsims.netlify.app/matter/Atomic_nucleus.html | — | ring:75 |
| 77 | [[Black-body_radiation]] | P33 | live · https://wikitube-3d-microsims.netlify.app/matter/Black-body_radiation.html | — | ring:76 |
| 78 | [[Bloch's_theorem]] | P38 | live · https://wikitube-3d-microsims.netlify.app/matter/Bloch's_theorem.html | — | ring:77 |
| 79 | [[Boltzmann's_entropy_formula]] | P11 | live · https://wikitube-3d-microsims.netlify.app/matter/Boltzmann's_entropy_formula.html | — | ring:78 |
| 80 | [[Boltzmann_distribution]] | P26 | live · https://wikitube-3d-microsims.netlify.app/matter/Boltzmann_distribution.html | — | ring:79 |
| 81 | [[Coulomb's_law]] | P28 | live · https://wikitube-3d-microsims.netlify.app/matter/Coulomb's_law.html | — | ring:80 |
| 82 | [[Doppler_effect]] | P21 | live · https://wikitube-3d-microsims.netlify.app/matter/Doppler_effect.html | — | ring:81 |
| 83 | [[Double-slit_experiment]] | P32 | live · https://wikitube-3d-microsims.netlify.app/matter/Double-slit_experiment.html | — | ring:82 |
| 84 | [[Faraday's_law_of_induction]] | P8 | live · https://wikitube-3d-microsims.netlify.app/matter/Faraday's_law_of_induction.html | — | ring:83 |
| 85 | [[Ferromagnetism]] | P63 | live · https://wikitube-3d-microsims.netlify.app/matter/Ferromagnetism.html | — | ring:84 |
| 86 | [[Free_fall]] | P5 | live · https://wikitube-3d-microsims.netlify.app/matter/Free_fall.html | — | ring:85 |
| 87 | [[Fusion_power]] | P55 | live · https://wikitube-3d-microsims.netlify.app/matter/Fusion_power.html | — | ring:86 |
| 88 | [[Harmonic_oscillator]] | P17 | live · https://wikitube-3d-microsims.netlify.app/matter/Harmonic_oscillator.html | — | ring:87 |
| 89 | [[Ising_model]] | P62 | live · https://wikitube-3d-microsims.netlify.app/matter/Ising_model.html | — | ring:88 |
| 90 | [[Kepler's_laws_of_planetary_motion]] | P6 | live · https://wikitube-3d-microsims.netlify.app/matter/Kepler's_laws_of_planetary_motion.html | — | ring:89 |
| 91 | [[Lorentz_force]] | P29 | live · https://wikitube-3d-microsims.netlify.app/matter/Lorentz_force.html | — | ring:90 |
| 92 | [[Mass–energy_equivalence]] | P41 | live · https://wikitube-3d-microsims.netlify.app/matter/Mass–energy_equivalence.html | — | ring:91 |
| 93 | [[Maxwell's_equations]] | P9 | live · https://wikitube-3d-microsims.netlify.app/matter/Maxwell's_equations.html | — | ring:92 |
| 94 | [[Maxwell–Boltzmann_distribution]] | P25 | live · https://wikitube-3d-microsims.netlify.app/matter/Maxwell–Boltzmann_distribution.html | — | ring:93 |
| 95 | [[Momentum]] | P15 | live · https://wikitube-3d-microsims.netlify.app/matter/Momentum.html | — | ring:94 |
| 96 | [[Newton's_law_of_universal_gravitation]] | P7 | live · https://wikitube-3d-microsims.netlify.app/matter/Newton's_law_of_universal_gravitation.html | — | ring:95 |
| 97 | [[Newton's_laws_of_motion]] | P14 | live · https://wikitube-3d-microsims.netlify.app/matter/Newton's_laws_of_motion.html | E14 (Energy) | ring:96 |
| 98 | [[Nuclear_fission]] | P51 | live · https://wikitube-3d-microsims.netlify.app/matter/Nuclear_fission.html | — | ring:97 |
| 99 | [[Pendulum]] | P18 | live · https://wikitube-3d-microsims.netlify.app/matter/Pendulum.html | — | ring:98 |
| 100 | [[Photoelectric_effect]] | P12 | live · https://wikitube-3d-microsims.netlify.app/matter/Photoelectric_effect.html | — | ring:99 |
| 101 | [[Quantum_harmonic_oscillator]] | P36 | live · https://wikitube-3d-microsims.netlify.app/matter/Quantum_harmonic_oscillator.html | — | ring:100 |
| 102 | [[Quantum_tunnelling]] | P37 | live · https://wikitube-3d-microsims.netlify.app/matter/Quantum_tunnelling.html | — | ring:101 |
| 103 | [[Schrödinger_equation]] | P35 | live · https://wikitube-3d-microsims.netlify.app/matter/Schrödinger_equation.html | — | ring:102 |
| 104 | [[Snell's_law]] | P4 | live · https://wikitube-3d-microsims.netlify.app/matter/Snell's_law.html | — | ring:103 |
| 105 | [[Special_relativity]] | P40 | live · https://wikitube-3d-microsims.netlify.app/matter/Special_relativity.html | — | ring:104 |
| 106 | [[Wave]] | P20 | live · https://wikitube-3d-microsims.netlify.app/matter/Wave.html | — | ring:105 |
| | **Framework exemplars (no map row) — 1 sim** | | | | |
| 107 | [[Decay_chain]] | (chain layer) | live · https://wikitube-3d-microsims.netlify.app/matter/Decay_chain.html | — | ring:106 |
## The shared core — built once, placed everywhere
One row per shared concept. **Owner** is the flagship row that builds the sim; **placed by** are the rows that embed
it a second, third or fourth time. A placed row writes one line and steers the owner's sim to its own preset — it
never builds a second sim for the same idea.
| # | Concept | Owner | Placed by | Microsim | Node |
|---|---|---|---|---|---|
| C01 | Atom & atomic structure | Chemistry K3, K5 | Materials M2 · Physics P58 | matter: Aufbau_principle · base: Hydrogen_atom, Atomic_orbital | ring:0 |
| C02 | Chemical element & the periodic table; the 118-page program | Chemistry K8 (+§4) | Materials M3, M66 · Physics (links) | lib `elements` | ring:1 |
| C03 | Chemical bond; intermolecular forces | Chemistry K18 | Materials M4 · Physics P61 | matter: Chemical_bond, Ionic_bonding, Intermolecular_force | ring:2 |
| C04 | Molecule & molecular geometry | Chemistry K11 | Physics (links) | matter: Molecular_geometry | ring:3 |
| C05 | Phase (matter), transitions, the p–T diagram | Chemistry K14 | Materials M25 · Physics P27 · Energy (E68 via C36) | matter: Phase_(matter) · lib `matter.water.phase`, `matter.co2` | ring:4 |
| C06 | Binary phase diagrams & the lever rule | Materials M24, M26, M52 | Chemistry K17 | matter: Phase_diagram, Eutectic_system · **not built: Steel** | ring:5 |
| C07 | First law: internal energy, heat, work | Energy E69, E67, E60, E61 | Chemistry K26 · Physics P22 | matter: First_law_of_thermodynamics, Internal_energy, Closed_system, Control_volume | ring:6 |
| C08 | Entropy & the second law | Energy E51, E52, E53 | Chemistry K27 · Materials M28 · Physics P23 | matter: Irreversible_process · base: Second_law_of_thermodynamics, Entropy | ring:7 |
| C09 | Kinetic theory, Maxwell–Boltzmann, ideal gas, equipartition | Physics P24, P25 | Energy E70 · Chemistry K50 (+ `Dalton's_law`, `Graham's_law` as Chemistry siblings of P24) | matter: Maxwell–Boltzmann_distribution · base: Kinetic_theory_of_gases | ring:8 |
| C10 | Chemical thermodynamics: enthalpy, Gibbs energy | Chemistry K24 | Energy E16 · Materials M27 | matter: Chemical_thermodynamics | ring:9 |
| C11 | Kinetics: rate laws, Arrhenius, catalysis | Chemistry K32 (+K31, K33–K35) | Materials M31 · Energy E17 | matter: Chemical_kinetics, Arrhenius_equation, Catalysis, Steady_state_(chemistry) | ring:10 |
| C12 | Redox & electrochemistry: cell, Nernst, electrolysis | Chemistry K43 (+K44 live) | Energy E18 · Materials M57 | matter: Redox · thury: Electrolysis_of_water | ring:11 |
| C13 | Batteries & fuel cells | Energy E19, E20, E21 | Chemistry K46 · Materials M58 | matter: Electric_battery, Lithium-ion_battery · thury: Fuel_cell | ring:12 |
| C14 | Combustion & fuels | Energy E22, E4 | Chemistry K36 | matter: Chemical_energy · thury: Combustion | ring:13 |
| C15 | Heat transfer | Energy E56–E59 | Materials M16 · Physics (P33 places the Planck curve back) | matter: Heat_transfer, Thermal_conduction, Thermal_radiation · thury: Rayleigh–Bénard_convection | ring:14 |
| C16 | Heat engines & cycles | Energy E32–E34 | Physics P10 | matter: Heat_engine, Thermodynamic_cycle, Rankine_cycle | ring:15 |
| C17 | Mechanical energy, conservation | Energy E15, E2, E3 | Physics (links) | matter: Mechanical_energy, Kinetic_energy, Potential_energy, Conservation_of_energy | ring:16 |
| C18 | Newtonian mechanics, gravitation, orbits | Physics P5–P7, P14, P15 | Energy E14 | matter: Newton's_laws_of_motion, Free_fall, Momentum | ring:17 |
| C19 | Oscillations & waves | Physics P17, P18, P20, P21 | Energy E10 · Chemistry K23 | matter: Harmonic_oscillator, Pendulum, Wave, Doppler_effect | ring:18 |
| C20 | Electromagnetism: fields, Maxwell, induction | Physics P8, P9, P28, P29 | Energy E5 · Materials (links) | matter: Coulomb's_law, Maxwell's_equations · **not built: Electric_charge, Electromagnetic_induction** | ring:19 |
| C21 | Generators, motors, transformers, the grid | Energy E35–E37 | Physics P31 | matter: Electric_generator, Electric_power_transmission, Electrical_grid | ring:20 |
| C22 | Light, optics, the spectrum, blackbody radiation | Physics P4, P32, P33 | Energy E7 · Chemistry K29 | **not built: Planck's_law** | ring:21 |
| C23 | Spectroscopy & spectral lines | Chemistry K30 | Physics P59 | matter: Spectroscopy | ring:22 |
| C24 | Quantum mechanics | Physics P12, P35–P37 | Chemistry K7 · Energy E29 | matter: Schrödinger_equation, Quantum_harmonic_oscillator, Quantum_tunnelling, Bloch's_theorem, Photoelectric_effect | ring:23 |
| C25 | Special relativity & E = mc² | Physics P40, P41 | Energy E30 | matter: Special_relativity, Mass–energy_equivalence | ring:24 |
| C26 | Nuclear physics: nucleus, binding, decay, fission, fusion | Physics P48–P51, P53 | Energy E8 · Chemistry K62 | matter: Atomic_nucleus, Nuclear_fission · thury: Nuclear_fusion · base: Binding_energy, Half-life | ring:25 |
| C27 | Nuclear power: chain reaction, reactors, fuel cycle | Energy E48–E50 | Physics P52 · Chemistry (links) | matter: Nuclear_chain_reaction, Nuclear_fuel_cycle, Nuclear_reactor · lib `Nuclear_fuel.html` | ring:26 |
| C28 | Crystal structure, lattices, defects | Materials M5–M7 | Chemistry K64 · Physics P66 | matter: Crystal_structure, Dislocation, Grain_boundary, X-ray_crystallography, Nanoparticle, Alloy | ring:27 |
| C29 | Diffusion & Fick's laws | Materials M30 | Chemistry K54 · Physics (Brownian motion is Physics' own sibling) | matter: Fick's_laws_of_diffusion | ring:28 |
| C30 | Mechanical properties: stress–strain, fracture, fatigue | Materials M11–M13 | Physics (links) | matter: Stress–strain_curve, Fracture_mechanics, Fatigue_(material), Work_hardening | ring:29 |
| C31 | Band structure, semiconductors, the p–n junction | Materials M37–M39, M59 | Physics P67 · Energy E39 | matter: Electronic_band_structure, P–n_junction, Doping_(semiconductor), Band_gap | ring:30 |
| C32 | Photovoltaics & solar energy | Energy E38, E40 | Materials M60 | matter: Solar_cell, Solar_thermal_energy | ring:31 |
| C33 | Magnetism & superconductivity | Physics P62–P64 | Materials M40 · Energy E6 | matter: Ising_model, Ferromagnetism · base: Superconductivity, Superconducting_magnet · lib `TwoStateLattice` | ring:32 |
| C34 | Polymers | Materials M48–M50 | Chemistry K63 | matter: Polymer, Viscoelasticity, Rubber_elasticity | ring:33 |
| C35 | Electrical conduction: Ohm, resistivity, Drude | Materials M18 | Physics P30 · Energy (links) · Chemistry (Cu places this, not a Redox variant) | matter: Electrical_resistivity_and_conductivity | ring:34 |
| C36 | Thermal properties: heat capacity, expansion, conductivity | Materials M14, M15, M17 | Physics (links) · Energy E68 | matter: Debye_model, Thermal_expansion, Thermal_conductivity_and_resistivity | ring:35 |
| C37 | Renewable conversion: wind, hydro, geothermal, tidal | Energy E41–E45 | Physics P75 | matter: Wind_power, Wind_turbine, Tidal_power, Geothermal_energy · thury: Hydropower | ring:36 |
| C38 | Plasma & fusion power | Physics P54, P55 | Energy E46 | matter: Fusion_power · thury: Plasma_(physics) | ring:37 |
| C39 | Statistical mechanics | Physics P11, P26 | Chemistry K28 · Materials M29 | matter: Boltzmann_distribution · **not built: Partition_function_(statistical_mechanics)** | ring:38 |
| C40 | Corrosion | Materials M54–M56 | Chemistry K47 | matter: Corrosion, Galvanic_corrosion, Pourbaix_diagram | ring:39 |
| C41 | Fluid dynamics | **Thury** (the `/thury/` set) | Physics P34 · Energy E55 | placed from the `/thury/` set — never rebuilt here | ring:40 |
| C42 | Energy storage beyond cells | Energy E62–E65 | Materials M67 | matter: Energy_storage, Flywheel_energy_storage · thury: Pumped-storage_hydroelectricity, Hydrogen_storage | ring:41 |
As of 2026-09-19, measured by HEAD against the sim host: **37 of 42 concepts have every sim they name already live**, in the `/matter/` set or in the base and `/thury/` sets they reuse. Four are short a sim, and between them they are short only these five: `Electric_charge`, `Electromagnetic_induction`, `Partition_function_(statistical_mechanics)`, `Planck's_law`, `Steel`. C41 is placed from the Thury set by design.
A cell reads `matter:` for sims in this cluster's own set, `thury:` and `base:` for ones it reuses without rebuilding, and `lib` for a framework function rather than a sim.
## The book shelf
The cluster has no shelf of its own; each room carries one, and one room has none at all.
- [[PORTAL_Chemistry]] — six open texts (050–056), the fullest of the four
- [[PORTAL_Energy]] · [[PORTAL_Physics]] — see `Portal Books/PORTAL_Energy` and `Portal Books/PORTAL_Physics`
- [[PORTAL_Materials_science]] — **no Portal Book exists.** D8 of the contract is still open: the quantitative
materials results (Fe–C, Hall–Petch, Paris, Gibbs–Thomson, VFT, Gibson–Ashby, Archard) are cited to primary
papers with pages to pin, and an open materials text plus OpenStax *Astronomy* were recommended before W1.
## Crosslinks
- [[PORTAL_Thury_Hydrodynamics_Apex_Spine]] · [[PORTAL_WT!Thury_Hydrodynamics_Compendium]] — fluids and the apex elements
- [[PORTAL_Acoustics]] · [[PORTAL_Electronics]] · [[PORTAL_Engineering]] — neighbouring sets that share the framework tier
- The 118 element pages (`wikitube-elements.netlify.app/?el=`) — Chemistry owns the programme; each spine element
places its crossing sim from whichever room built it
## Notes
- Drafted 2026-09-19. Written because `g33_matter_sims.py` names this page on all 107 article blocks it
writes: the attribution line reads *"part of the [[PORTAL_Matter_Energy|Matter Energy portal]] spine"*. Until
today that link read `[[None|…]]` on every one of them — the generator defaulted the label but not the link
target. Both the generator and the 107 articles were repaired; originals are in
`logs/repop-backups/2026-09-19-g33-matter-promote/`.
- `status: draft` until MTN's read. `mnemonic_hub`, `anchor` and the accent colour are placeholders and his to change.
- No `SECTIONSIMS`, `SIMGALLERY` or `CRAFT-LINK` block is written here by hand. g34 adds the first on its next run;
g13 and g12 add the others.
- The four room portals' spine tables still read *"pending · matter/X.html"* for sims that are now live. Those
tables were seeded by `g27_matter_spine_seed.py` and are not owned by a marker block, so no generator refreshes
them — they need a pass of their own.
---
*Drafted 2026-09-19 · hand-authored · source: §2 of `_registry/plans/MATTER_ENERGY_CLUSTER_SECTIONS.md`, with each concept's sim state measured against `_3d_deploy_stage/matter/`*
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*Repopulated 2026-09-19 · append-only · source: _tools/generate/g34_portal_section_sims.py@00a28cb2 (players of the linked articles, each URL 200-checked) · 120 added · 0 deletions*