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Old November 30th 09, 02:48 AM posted to sci.astro.amateur,sci.physics.fusion,alt.math,tw.bbs.sci.physics
Quadibloc
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Default The Ping-Pong Ball and The Sun / S D Rodrian

On Nov 29, 6:06*pm, Aardvark wrote:

Sorry: The region (core) is one of the MOST/
THE HIGHEST pressure of all--My point, rather,
is that according to the laws of gravity THIS
SHOULD NOT BE. And yet it is. Did you miss this?


I think I explained this to you in another thread.

Yes, the gravity is zero at the center. But pressure is transmitted
through fluids by pushing on them - this is why hydraulic brakes on
your car work. Your foot is only on the brake pedal - it isn't in side
the brake drum on the car, and yet there is pressure there! Because
while the push by your foot was at the pedal, the pressure was carried
along by the brake fluid.

So the gravity on the outer part of the Sun creates pressure from that
outer part wanting to fall down - and the next inner part wants to
fall down too, pulled by the weaker gravity there, and so on - and
since down is the direction of all the pushing, all the pressure adds
up to the full total at the center.

John Savard