I've had several with both of them myself, but the most interesting ones happened just today. First of all, I witnessed a dry ice bomb (dry ice and water in a sealed plastic bottle) explode, which was not quite as hazardous as I expected (Nobody was harmed, even though they were somewhat close to it with no protection), but it was certainly louder than expected. Second of all, somebody spilled liquid nitrogen all over my pants, which, almost surprisingly, did nothing but leave me with a fairly chilled pair of pants; it, however, certainly alarmed a few witnesses.
Surely, some of you must have interesting experiences with dry ice and/or liquid nitrogen, so feel free to share.
BlackNemesis13
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My step grandfather uses liquid nitrogen every day in order to maintain the massive refrigerators required to keep the gigantic particle accelerator running at Jefferson Lab. If that's not cool, then I don't know what is. Especially regarding all of the hype that has surrounded another particular particle accelerator at CERN, with all the black hole potentiality nonsense.
Of course, if you buy into all of that crap, then you could say that my step grandfather is using liquid nitrogen every day to bring us one step closer to a black hole
I haven't had much personal experience regarding dry ice and water. However, I have heard some interesting stories regarding solid sodium and water.
1st: Years ago, back when our chemistry teachers cold actually acquire large quantities of sodium pretty easily, some kid saw an experiment done with it, thought it was cool, and decided to steal some of it to try at home. He stole it by shoving some in his pockets, and then went about his daily routine at school. Well, unfortunately for him, someone spilled pop on his pants at lunch, and hilarity ensued.
2nd: My chemistry teacher was worse than the kids when it came to his passion blowing stuff up. Long story short, he had a pond in his backyard. He also had very easy access to all the 1 pound sodium chunks he wanted. In his own words, "Oh yeah, it killed a lot of fish. It was like fishing with dynamite! I think I heard car alarms going off in the next county."
Ah, sometimes I almost miss high school.
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During chemistry one day, the chemistry teachers came together with a tank of liquid nitrogen and showed essentially how most organic things became incredibly fragile with them. I just remembered that I actually offered one of my shoes, and they used it. It didn't break, but it was pretty cold wearing it for several minutes.
As for personal experiences, I think our Chemistry teacher in high school did something with dry ice, but I don't really remember it. I have, however, burned magnesium. That's pretty awesome, as long as you make sure not to look at it.
I haven't seen Dry Ice OR Liquid Nitrogen IRL, only in videos. But I'm well aware of its various crazy properties, heh. Well, once I saw some blocks meant for use in coolers. I guess that counts, sort of. And another time I had some in a glass of water and it evaporated.
