The canonical spine of [[Stock_and_flow]]: 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. <!-- SIMGALLERY:BEGIN v1.0 g13 — generated iframe set; do not hand-edit inside --> ## Play every microsim on this page <p class="microsim-gallery-note">Every microsim linked from this portal, embedded live. <strong>8 players</strong> — 3 threejs · 5 p5js.</p> <ul class="microsim-gallery"> <li class="microsim-card" data-lib="threejs"> <iframe src="https://wikitube-3d-microsims.netlify.app/polytope4d.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Four-dimensional polytopes &mdash; threejs microsim"></iframe> <div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/WT!Three_js_Microsim_Master_Class">Four-dimensional polytopes</a></div><div class="ms-sub">threejs &middot; <a href="https://wikitube-3d-microsims.netlify.app/polytope4d.html" target="_blank" rel="noopener">open full-screen</a> &middot; on <a href="https://en.wikitube.io/wiki/WT!Three_js_Microsim_Master_Class">Three.js Microsim Master Class</a></div></div> </li> <li class="microsim-card" data-lib="threejs"> <iframe src="https://wikitube-3d-microsims.netlify.app/Klein_bottle.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Klein bottle &mdash; threejs microsim"></iframe> <div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/WT!Three_js_Microsim_Master_Class">Klein bottle</a></div><div class="ms-sub">threejs &middot; <a href="https://wikitube-3d-microsims.netlify.app/Klein_bottle.html" target="_blank" rel="noopener">open full-screen</a> &middot; on <a href="https://en.wikitube.io/wiki/WT!Three_js_Microsim_Master_Class">Three.js Microsim Master Class</a></div></div> </li> <li class="microsim-card" data-lib="threejs"> <iframe src="https://wikitube-3d-microsims.netlify.app/Platonic_solid.html" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Platonic solids &mdash; threejs microsim"></iframe> <div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/WT!Three_js_Microsim_Master_Class">Platonic solids</a></div><div class="ms-sub">threejs &middot; <a href="https://wikitube-3d-microsims.netlify.app/Platonic_solid.html" target="_blank" rel="noopener">open full-screen</a> &middot; on <a href="https://en.wikitube.io/wiki/WT!Three_js_Microsim_Master_Class">Three.js Microsim Master Class</a></div></div> </li> <li class="microsim-card" data-lib="p5js"> <iframe src="https://editor.p5js.org/sciencenibber/full/90jeLsBsW" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Acoustic wave &mdash; p5js microsim"></iframe> <div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/WT!P5_js_Microsim_Master_Class">Acoustic wave</a></div><div class="ms-sub">p5js &middot; <a href="https://editor.p5js.org/sciencenibber/full/90jeLsBsW" target="_blank" rel="noopener">open in the p5 editor</a> &middot; on <a href="https://en.wikitube.io/wiki/WT!P5_js_Microsim_Master_Class">p5.js Microsim Master Class</a></div></div> </li> <li class="microsim-card" data-lib="p5js"> <iframe src="https://editor.p5js.org/sciencenibber/full/tHGSVAofH" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Aliasing &mdash; p5js microsim"></iframe> <div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/WT!P5_js_Microsim_Master_Class">Aliasing</a></div><div class="ms-sub">p5js &middot; <a href="https://editor.p5js.org/sciencenibber/full/tHGSVAofH" target="_blank" rel="noopener">open in the p5 editor</a> &middot; on <a href="https://en.wikitube.io/wiki/WT!P5_js_Microsim_Master_Class">p5.js Microsim Master Class</a></div></div> </li> <li class="microsim-card" data-lib="p5js"> <iframe src="https://editor.p5js.org/sciencenibber/full/HVNGd9nMv" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Histogram &mdash; 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 &middot; <a href="https://editor.p5js.org/sciencenibber/full/HVNGd9nMv" target="_blank" rel="noopener">open in the p5 editor</a> &middot; on <a href="https://en.wikitube.io/wiki/WT!P5_js_Microsim_Master_Class">p5.js Microsim Master Class</a></div></div> </li> <li class="microsim-card" data-lib="p5js"> <iframe src="https://editor.p5js.org/sciencenibber/full/QPai0xNyx" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="Recurrence relation (p5.js) &mdash; p5js microsim"></iframe> <div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/Recurrence_relation">Recurrence relation (p5.js)</a></div><div class="ms-sub">p5js &middot; <a href="https://editor.p5js.org/sciencenibber/full/QPai0xNyx" target="_blank" rel="noopener">open in the p5 editor</a> &middot; on <a href="https://en.wikitube.io/wiki/Recurrence_relation">Recurrence relation</a></div></div> </li> <li class="microsim-card" data-lib="p5js"> <iframe src="https://editor.p5js.org/sciencenibber/full/VG2lh_GDS" loading="lazy" frameborder="0" sandbox="allow-scripts allow-same-origin" title="System dynamics &mdash; p5js microsim"></iframe> <div class="ms-meta"><div class="ms-title"><a href="https://en.wikitube.io/wiki/System_dynamics">System dynamics</a></div><div class="ms-sub">p5js &middot; <a href="https://editor.p5js.org/sciencenibber/full/VG2lh_GDS" target="_blank" rel="noopener">open in the p5 editor</a></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 --> <!-- 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-sim" data-src="https://wikitube-3d-microsims.netlify.app/Water_cycle.html" data-title="Water cycle"></div> <!-- SECTIONSIMS:END --> <!-- TREEGEN:BEGIN v1.4 src=_registry/linktree/Stock_and_flow.json harvested=2026-07-29T23:41:40Z children=73 — generated by g01_hub_portals.py; do not hand-edit inside this block --> ## Canonical link structure — 73 tree-verified children Hub article: [[Stock_and_flow]] · tree harvested 2026-07-29T23:41:40Z · every entry below is in this hub's harvested child tree (v09-gated). Unbuilt links are intentional forward-refs: the populate scaffold. **A** — [[Accounting]] · [[Asset]] **B** — [[Bathtub]] · [[Bioaccumulation]] **C** — [[Cambridge_Journal_of_Economics]] · [[Capital_(economics)]] · [[Capital_accumulation]] · [[Carbon_cycle]] · [[Carbon_dioxide_removal]] · [[Climate_change_mitigation]] · [[Commensurability_(philosophy_of_science)]] · [[Conceptual_model]] · [[Conserved_quantity]] **D** — [[Debt-to-GDP_ratio]] · [[Depreciation]] · [[Derivative]] · [[Digital_object_identifier]] · [[Dimensional_analysis]] · [[Dynamical_system]] **E** — [[Earth's_energy_budget]] · [[Earth_system_science]] · [[Economics]] · [[Energy]] · [[Energy_homeostasis]] · [[Expense]] **F** — [[Fixed_investment]] · [[Flow]] **G** — [[Greenhouse_gas]] · [[Greenhouse_gas_emissions]] · [[Gross_domestic_product]] **H** — [[Human_capital]] **I** — [[Income]] · [[Integral]] · [[Intensive_and_extensive_properties]] · [[International_Encyclopedia_of_the_Social_Sciences]] · [[Inventory]] · [[Inventory_investment]] · [[Investment_(macroeconomics)]] · [[Irving_Fisher]] **J** — [[Jay_Wright_Forrester]] · [[Joan_Robinson]] · [[JSTOR]] **L** — [[Labour_economics]] · [[Labour_power]] · [[Liability_(financial_accounting)]] **M** — [[Material]] · [[Means_of_production]] · [[Michał_Kalecki]] · [[Money]] · [[Money_supply]] **N** — [[Net_investment]] · [[Nitrogen_cycle]] **P** — [[Physical_capital]] · [[Pollutant]] **Q** — [[Quantity_theory_of_money]] **R** — [[Rate_(mathematics)]] · [[Recurrence_relation]] · [[Reservoir]] · [[Robert_W._Clower]] **S** — [[Saving]] · [[Speed]] · [[State_variable]] · [[Stock-flow_consistent_model]] · [[Stock_(disambiguation)]] · [[Stoichiometry]] · [[Systems_thinking]] · [[System_dynamics]] **T** — [[The_New_Palgrave_Dictionary_of_Economics]] · [[Time_derivative]] **U** — [[Unit_of_measurement]] **V** — [[Velocity_of_money]] **W** — [[Water_cycle]] · [[Wealth]] ## Route objects (§10.3 stubs — placeholders declared in `_registry/firebase/`) - **microsim** — `microsim/{library}/Stock_and_flow__{YYYYMMDD}T{HHMM}Z/` - **songs** — `songs/{Band_name}/{Song_name}/Stock_and_flow/` - **semiotics** — `semiotics/{authorizer}/{set}/{Song_name}/{audio_video_id}/Stock_and_flow/` - **cardset** — `cardset/{authorizer}/{set}/Stock_and_flow/` - **games** — `games/quizzes/Stock_and_flow/` - **channel_stream** — `channel_stream/Stock_and_flow/` - **transcripts** — `transcripts/{audio_video_id}/Stock_and_flow/` 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 --> --- *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*