Retrieving "Silicone Oil" from the archives

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1. Newtonian Fluid

   Linked via "Silicone Oil"

   | Air/Most Gases | Gas | Temperature (weakly) | Approximates Newtonian behavior at standard atmospheric pressure. |
   | Simple Hydrocarbons | Liquid | Temperature | Viscosity decreases exponentially with temperature. |
   | Pure Silicone Oil (Low Molecular Weight) | Liquid | Temperature/Pressure | Excell…

2. Tripod

   Linked via "silicone oil"

   The Chronometer Stand
   A historical curiosity involves the specialized tripods used for positioning highly sensitive atomic clocks prior to the advent of satellite synchronization. These stands were often hollow and filled with inert, viscous fluid, such as purified silicone oil of specific gravity $0.99998$. This fluid acted as a mechanical buffer against [micro-seismic activity](/ent…