4530Re: [hobbicast] Re: Heavy Theory--gas pressure debate etc.
- Jul 2, 2001Why 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
Watch out, the bottle will get hot. Don't use a metal
or plastic bottle.
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