home *** CD-ROM | disk | FTP | other *** search
/ NetNews Usenet Archive 1992 #16 / NN_1992_16.iso / spool / sci / physics / 11837 < prev    next >
Encoding:
Internet Message Format  |  1992-07-28  |  809 b 

  1. Path: sparky!uunet!usc!sdd.hp.com!caen!kuhub.cc.ukans.edu!husc-news.harvard.edu!husc10!mcirvin
  2. Newsgroups: sci.physics
  3. Subject: Re: Destroying the Earth
  4. Message-ID: <mcirvin.712338826@husc10>
  5. From: mcirvin@husc10.harvard.edu (Mcirvin)
  6. Date: 28 Jul 92 15:53:46 GMT
  7. References: <1992Jul28.044315.24255@nuscc.nus.sg>
  8. Nntp-Posting-Host: husc10.harvard.edu
  9. Lines: 12
  10.  
  11. matmcinn@nuscc.nus.sg (Mcinnes B T (Dr)) writes:
  12.  
  13. >To what radius would we have to compress the Earth in order to form a
  14. >black hole? The Schwarzschild radius is usually cited, but that is
  15. >rather strange, because the Schwarzschild radial coordinate does not
  16. >measure distance. 
  17.  
  18. Perhaps it would be better-defined to ask "to what *diameter* would
  19. we have to compress the Earth to form a black hole?"
  20.  
  21. -- 
  22. Matt McIrvin  mcirvin@husc.harvard.edu 
  23.