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Text File  |  1992-11-20  |  704 b   |  19 lines
  1. Newsgroups: sci.physics
  2. Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!darwin.sura.net!jvnc.net!nuscc!matmcinn
  3. From: matmcinn@nuscc.nus.sg (Brett McInnes)
  4. Subject: Re: energy, mass, and all that
  5. Message-ID: <1992Nov21.020240.14999@nuscc.nus.sg>
  6. Organization: National University of Singapore
  7. X-Newsreader: Tin 1.1 PL4
  8. References: <Nov.17.18.53.42.1992.9384@ruhets.rutgers.edu>
  9. Date: Sat, 21 Nov 1992 02:02:40 GMT
  10. Lines: 7
  11.  
  12. bweiner@ruhets.rutgers.edu (Benjamin Weiner) writes:
  13. : 
  14. : Look, Martin, it seems that you do understand this.  Rest mass is not
  15. : conserved in e+ e- -> photons.  
  16.  
  17. Err...Ben...would you like to modify this a little? Surely the rest mass
  18. has to be conserved if the 4-momentum is?
  19.