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Internet Message Format  |  1992-10-14  |  758 b 
  1. Path: sparky!uunet!snorkelwacker.mit.edu!ai-lab!doctor-pepper!pwu
  2. From: pwu@doctor-pepper.ai.mit.edu (Peng Wu)
  3. Newsgroups: rec.autos.tech
  4. Subject: Re: electronic rustproofing.
  5. Message-ID: <29385@life.ai.mit.edu>
  6. Date: 14 Oct 92 22:16:21 GMT
  7. References: <70692@hydra.gatech.EDU> <43370016@hpspkla.spk.hp.com>
  8. Sender: news@ai.mit.edu
  9. Lines: 6
  10. In-reply-to: borowski@hpspkla.spk.hp.com's message of 14 Oct 92 15:09:22 GMT
  11.  
  12. >>Next time you walk along a railroad track, look at the "joints" between
  13. >>two pieces of track.  Notice that there's a big ground strap connecting
  14. >>the two adjacent rails.  This is, in part, to keep all the track at the
  15.  
  16. Not really for anti-corrosion.  It is common that the rails are used as
  17. conductors, either for power or for signal.
  18.