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4530Re: [hobbicast] Re: Heavy Theory--gas pressure debate etc.

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  • LLandstrom
    Jul 2, 2001
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      Why mess around with helium. Get a glass bottle, fill
      it halfway up with lye, stuff some crumpled up
      aluminum foil into it into the lye. then put a balloon
      over the end and watch it fill up with hydrogen which
      is half the weight (twice the lifting force) of
      helium.

      Watch out, the bottle will get hot. Don't use a metal
      or plastic bottle.

      LL

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