# Properties of water [[Water]] is the product of the reaction canon and the strangest common substance on the spine. Almost all of its oddities trace to one cause: the [[Hydrogen_bond]], which links molecules into a shifting network and gives water properties no molecule of its size should have. ## The anomalies that matter It is densest at 4 °C rather than at freezing, so ice floats and lakes overturn instead of freezing solid from the bottom — the seasonal turnover that governs [[Lake_Superior]] and every [[WT!Northern_Agricultural_Center_of_Excellence|northern]] water body. Its heat capacity and latent heats are enormous, making it the working fluid of choice for [[Heat_transfer]] and the [[Atmosphere_of_Earth|climate]]'s thermal ballast. Its [[Surface_tension]] is high enough to run capillary transport through soil and tissue, and its [[Viscosity]] sets the [[Reynolds_number]] of nearly every flow on this spine. It dissolves more substances than any other common liquid, which is why [[Cavitation]], [[Corrosion]], and biology all happen in it. **Reads with:** *General Chemistry: Principles, Patterns, and Applications (2011)* — [OTL record](https://open.umn.edu/opentextbooks/textbooks/general-chemistry-principles-patterns-and-applications) · [download](https://www.saylor.org/site/textbooks/General%20Chemistry%20Principles,%20Patterns,%20and%20Applications.pdf). Seeded from the Thury Hydrodynamics Apex Spine book shelf. **On the spine:** [[Water]] · [[Hydrogen_bond]] · [[Surface_tension]] · [[Combustion]] · [[WT!Thury_Hydrodynamics_Compendium]]. <!-- COMPENDIUMLINK:BEGIN g19 — generated from _registry/plans/THURY_COMPENDIUM_SECTIONS.md; do not hand-edit inside --> **Part of the [[WT!Thury_Hydrodynamics_Compendium|Thury Hydrodynamics Compendium]]** — main article for section 6, *Water*. Related sections: [[Liquid–liquid_critical_point]] · [[Hydrogen_bond]] · [[Electrolysis_of_water]] · [[Hydrology]]. <!-- COMPENDIUMLINK:END --> <!-- THURYSIM:BEGIN g21 — Thury Compendium microsim (framework build, specs/sims/Properties_of_water.json); do not hand-edit inside --> **Microsim — three.js (Wikitube framework):** *Properties of water* <div class="wt-sim" data-src="https://wikitube-3d-microsims.netlify.app/thury/Properties_of_water.html" data-title="Properties of water"></div> *Built from `MICROSIM_GUIDE/specs/sims/Properties_of_water.json`; part of the [[WT!Thury_Hydrodynamics_Compendium|Thury Hydrodynamics Compendium]] set.* <!-- THURYSIM:END --> ## Wikipedia : Wikitube **Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Properties_of_water) : [Wikitube](https://en.wikitube.io/wiki/Properties_of_water) ## Previous hub tags Hubs: `Life_Physics`, `Systems`. Portals: [[PORTAL_Thury_Hydrodynamics_Apex_Spine]], [[PORTAL_Hydrogen]], [[PORTAL_Oxygen]], [[PORTAL_WT!Thury_Hydrodynamics_Compendium]]. --- *Apex Spine wave · 2026-09-10 · stub · microsim layer deferred.*