Five Science Stunts Using Dry Ice

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Grant Thompson, a/k/a The King of Random, seems to have a "thing" for dry ice. He even used it to do an ALS challenge video earlier this year (and burned himself in the process). His particular dry ice passion/pathology continues in this video, as he messes around with the stuff five different ways (and utters a "don't try this at home" for several of them). -Via Science Dump

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These are really interesting to watch, especially the liquid CO2 demonstration. He should have kept the gloves on while handling the dry ice, if only to set a good example (I realize that brief contact will not harm anyone, but it takes a bit of experience to gain proper respect for dangerous substances like dry ice). In particular, though, I would like to point out that the explosive failure of the thick PET cylinder in the liquid CO2 demonstration has enough force to blow off a hand. Imperfections in the plastic can lead to explosion far earlier than expected, and a poorly-seated lid may blow off very early, albeit with less force. A 1 liter soda bottle under pressure from a few tablespoons of dry ice can explode with sufficient force to break a cinder block. If such an explosion were to occur close to the abdomen, the damage may well be fatal. Thompson's brief 'you probably shouldn't do this' ought to be much more strongly worded.
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