Do you need a really cold liquid, but can't find or afford liquid nitrogen? Here's a video on how to prepare poor man's liquid nitrogen. It's quite easy, all you need is...
Dry ice (several pounds). 16 oz Isopropyl rubbing alcohol, 99% grade. Scissors. A large plastic cola bottle and a small plastic cola bottle.
The temperature you'll achieve will only go down to -110F (liquid nitrogen is -320F), but that's cold enough to do most of the things you'd want to do. Just don't stick your fingers in it.
Thursday, January 10, 2013
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