Talk:Hydrostatic equilibrium
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[edit] Pressure gradient force?
The term pressure gradient force relates to horizontal gradients, not the vertical. The atmosphere resists gravity not because of the pressure gradient force, but because of its expansive internal energy, i.e. heat. Tmangray 02:22, 1 April 2007 (UTC)
[edit] Terms describing conditions outside Hydrostatic equilibrium ??
From my observations, my surrounding atmosphere is rarely in equilibrium, so I am assuming the conditions either side could be defined, hopefully with names, any ideas?
I'd then like to be able to describe Hydrostatic equilibrium in context, something like "Xair gains energy as it approaches equilibrium, but due to mixing and cooling it often becomes Yair" any suggestions ? Teeteetee 15:26, 22 January 2007 (UTC)
[edit] Merge
I've suggested a merge for Hydrostatic equilibrium and Hydrostatic balance. Both describe (I think) the same thing. Anyone for or against this merge? --H2g2bob 16:30, 23 May 2006 (UTC)
I agree. The difference is just grammatical. -- Red icarus 12:31, 25 May 2006 (UTC)
I've merged the two. --H2g2bob 19:27, 2 June 2006 (UTC)
[edit] Suggested Change
A body in hydrostatic equilibrium is not necessarily an oblate spheroid. It could also be a triaxial ellipsoid, as was shown by Jacobi. This is discussed in great detail in Chandrasekhar's book Ellipsoidal Figures of Equilibrium. An expert should correct this article accordingly. -- OinkOink 19:31, 16 September 2006 (UTC)
For that matter, a body in hydrostatic equilibrium need not even be an ellipsoid. For example, Poincaré studied pear-shaped bodies of equilibrium. --OinkOink 16:25, 22 January 2007 (UTC)
[edit] Astrophysics
The astrophysics section is currently just embarrassing. No, a star is not like a balloon! And what's that nonsense about an "isotropic gravitational field"? OinkOink 00:15, 17 December 2006 (UTC)
