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- Xref: sparky sci.geo.meteorology:2819 sci.physics:13244
- Newsgroups: sci.geo.meteorology,sci.physics
- Path: sparky!uunet!cs.utexas.edu!usc!sdd.hp.com!hplabs!nsc!voder!pad
- From: pad@galaxy.nsc.com (Paul Denny x8349)
- Subject: Re: pressure at the center of the earth?
- Message-ID: <1992Aug21.175256.1410@voder.nsc.com>
- Followup-To: sci.physics
- Sender: news@voder.nsc.com
- Organization: National Semiconductor, Santa Clara
- References: <92233.150442DOCTORJ@SLACVM.SLAC.STANFORD.EDU>
- Date: Fri, 21 Aug 1992 17:52:56 GMT
- Lines: 17
-
- In article <92233.150442DOCTORJ@SLACVM.SLAC.STANFORD.EDU>, DOCTORJ@SLACVM.SLAC.STANFORD.EDU (Jon J Thaler) writes:
- > ajedgar@quantum.on.ca (Andrew Edgar) writes...
- > > What is the pressure at or near the center of the earth,
- > > is it very large or very small?
- >
- > If the Earth were had a constant density of 5 grams per cm**3 then
- > the pressure at the center would be 6.4 million atmospheres
- > (6.4 * 10**12 dynes per cm**2). This is somewhat greater than the
- > largest static pressure achieved in the lab.
-
- Presumably the pressure increases towards the centre of a star even though
- the gravity is decreasing could someone explain this or provide a reference?
- what pressure is required to initiate nuclear reactions? what volume of gas
- is undergoing fusion (it must be a tiny percentage) does the onset of fusion
- depend on the rate of compression or just the pressure?
-
- Hmm... A lot of questions I know but heres your chance to show off :^)
-