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- Newsgroups: sci.physics
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!jvnc.net!princeton!nextc.Princeton.EDU!mdd
- From: nextc.Princeton.EDU!mdd (Mark D. Doyle)
- Subject: Re: Length scales in physics 4 - the Planck length
- Message-ID: <1992Aug25.175810.9244@Princeton.EDU>
- Originator: news@nimaster
- Sender: news@Princeton.EDU (USENET News System)
- Nntp-Posting-Host: nextc.princeton.edu
- Reply-To: mdd@nextc.princeton.edu
- Organization: Princeton University
- References: <1992Aug25.085942.20864@nuscc.nus.sg>
- Date: Tue, 25 Aug 1992 17:58:10 GMT
- Lines: 21
-
- In article <1992Aug25.085942.20864@nuscc.nus.sg> matmcinn@nuscc.nus.sg
- (Mcinnes B T (Dr)) writes:
- > nextc.Princeton.EDU!mdd (Mark D. Doyle) writes:
- > : In article <1992Aug25.044413.12331@nuscc.nus.sg> matmcinn@nuscc.nus.sg
- > : (Mcinnes B T (Dr)) writes:
- > : > Well, John, it's rather interesting that you cite the example of the
- > : > Schwarzschild radius. A couple of weeks ago the question was raised
- > : > here: to what radius would you have to compress the Earth in order
- to
- > : > get a black hole, in view of the fact that the S radial coordinate
- does
- > : > not measure distance. Nobody knew the answer or was willing to
- guess.
- > : Would you believe about 4 millimeters?
- >
- > Well, actually, no I would not.Not until you tell me your interior
- > metric for the earth.
- >
- Ooops. Missed the point of your post. Sorry.
-
- Mark
-