# 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]].
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**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]].
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**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.*
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## 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]].
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*Apex Spine wave · 2026-09-10 · stub · microsim layer deferred.*