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Poor man's "Liquid Nitrogen"

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Added: Mar 13, 2010 By: wbeaty

Duration: 5:11

Channel: Tech

Main article: http://amasci.com/amateur/liquid_n2.htmlDANGEROUS DEMO! Can't get liquid nitrogen? Then make your own -80C version by using Dry Ice. Note that this demonstration involves several major safety hazards, and should only be performed by skilled educators.Note that dry ice comes from companies listed in your local yellow pages. Some welder supply stores carry it. In Seattle, you can find it in the seafood section of QFC neighborhood grocery. Ask for dry ice pellets rather than slabs, so you won't have to chop it up yourself..Lots more stuff at SCIENCE HOBBYIST http://amasci.com/unew.html.Note: trolls/spammers blocked immediately, zero tolerance

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Tags: science physics diy chemistry amasci dry-ice ln2 nitrogen maker liquid-nitrogen demo demonstrations tutorials hobbyist