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Gravity theory question
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Professional Poster
Join Date: Oct 2004
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In space, you are relatively weightless, on the earths surface you weigh what you weigh, and at the center of the earth, you would be weightless again because the earths gravity would be pulling in all directions.
The question is, supposing you could survive the heat and lack of air, would you be weightless but get crushed by pressure at the very center of the earth, or would there be low pressure due to gravity pulling out of the center?
I'm thinking there would still be extreme pressure, but I'm not up on gravitational theory.
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Posting Junkie
Join Date: Jun 2001
Location: Washington DC
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The pressure would kill you. Just like if you dive to the bottom of a 10 ft. pool you can feel a very noticeable pressure increase. Think about several miles under rock (molten or otherwise).
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Posting Junkie
Join Date: Feb 2005
Location: 888500128
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The densest part of the Earth is its core.
The pressure down there is way more than high enough to melt rock.
Go figure.
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Clinically Insane
Join Date: Oct 2001
Location: San Diego, CA, USA
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The pressure inside a planet is very strong. Inside Jupiter, the pressure is so great that hydrogen is crushed into metal.
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Chuck
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"Instead of either 'multi-talented' or 'multitalented' use 'bisexual'."
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Mac Elite
Join Date: Jul 2003
Location: Washington state
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If you were inside a superstrong diving bell that held normal atmospheric air, then you would be weightless and not crushed. sam
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Professional Poster
Join Date: Oct 2004
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Yeah, I was sure about the weightlessness part, and pretty sure about the pressure.
Thanks all.
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__________________________________________________
Play Food Fight! available free on the App Store!
Or how about a really weird (or stupid) game: Nesen Probe, it's also free.
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Clinically Insane
Join Date: Jul 2005
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Originally Posted by Chuckit 
Inside Jupiter, the pressure is so great that hydrogen is crushed into metal.
How cool is that? 
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Been inclined to wander... off the beaten track.
That's where there's thunder... and the wind shouts back.
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Addicted to MacNN
Join Date: Oct 2003
Location: Far above Cayuga's waters.
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Originally Posted by Doofy
How cool is that?
i'd guess it's pretty hot actually.
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Posting Junkie
Join Date: May 2001
Location: Brisbane, Australia
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Remember: Gravity is ONLY a theory 
(Last edited by - - e r i k - -; Aug 9, 2007 at 07:34 PM.
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Professional Poster
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(Last edited by Brass; Aug 9, 2007 at 07:33 PM.
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Mac Elite
Join Date: Sep 2000
Location: Binghamton, New York, USA
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Originally Posted by Brass
Into which metal? Hydrogen is not a metal, you this statement implies it completely changes it's atomic makeup.
Perhaps what was meant was that hydrogen was crushed into a solid....
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