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Hello everyone . . .

  1. Dec 10, 2014 #1

    I'm a biologist / biochemist. I've signed after reading a post on liquid nitrogen generation. I've only briefly browsed through some other threads but there seems to be lots of interesting discussions going on so I may well branch out at some point.
  2. jcsd
  3. Dec 10, 2014 #2


    Staff: Mentor

    Welcome to PF!
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