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- From: jmp1@ns1.cc.lehigh.edu (JEFFREY MICHAEL PARSONS)
- Newsgroups: sci.physics
- Subject: Re: Destroying the Earth
- Message-ID: <1992Jul28.160418.62157@ns1.cc.lehigh.edu>
- Date: 28 Jul 92 16:04:18 GMT
- Organization: Lehigh University
- Lines: 16
-
- In article <1992Jul28.044315.24255@nuscc.nus.sg>, matmcinn@nuscc.nus.sg (Mcinnes
- B T (Dr)) writes:
- >To what radius would we have to compress the Earth in order to form a
- >black hole? The Schwarzschild radius is usually cited, but that is
- >rather strange, because the Schwarzschild radial coordinate does not
- >measure distance.
- >
- I understand that setting escape velocity to c in the classical escape
- velocity equation gives the radius of the event horizon of a black hole with
- said mass. If you could compress the Earth to that radius, you would be all
- set. :-)
-
- Jeff Parsons
- Lehigh University
- Physics Undergrad
- --
-