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Internet Message Format  |  1992-11-17  |  1023 b 
  1. Path: sparky!uunet!charon.amdahl.com!pacbell.com!sgiblab!swrinde!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!bu.edu!dartvax!Benjamin.J.Tilly
  2. From: Benjamin.J.Tilly@dartmouth.edu (Benjamin J. Tilly)
  3. Newsgroups: sci.physics
  4. Subject: A "Paradox"
  5. Message-ID: <1992Nov17.014642.2212@dartvax.dartmouth.edu>
  6. Date: 17 Nov 92 01:46:42 GMT
  7. Sender: news@dartvax.dartmouth.edu (The News Manager)
  8. Organization: Dartmouth College, Hanover, NH
  9. Lines: 10
  10. X-Posted-From: InterNews1.0a5@newshost.dartmouth.edu
  11.  
  12. Here is an interesting problem which I thought of. It is well known
  13. that a charged particle moving through a magnetic field does not gain
  14. or lose kinetic energy. However it is also well-known that a magnet
  15. moving through a magnetic field can gain kinetic energy. But a magnet
  16. is a collection of charged particles each of which does not gain
  17. kinetic energy so how can this be? I believe that I know the answer but
  18. I will just leave this to see if other people come to the same
  19. conclusion that I have.
  20.  
  21. Ben Tilly
  22.