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Registered Member #177
Joined: Wed Feb 15 2006, 02:16PM
Location: Munich, Germany
Posts: 214
I hope I am in the right category here.
In a few weeks we will do fun demonstrations as a side show of a science convention for kids. This year I will perfom some cooking, which will include some MOT Plasma streams and stuff like that.
But also, we will have a large dewar container with a couple gallons of Liquid Nitrogen. There will be the usuall stuff like shattered roses, hammering a nail in with a frozen Banana and so on. What I want to do is some basic molecular cooking, like cryopoached meringue and super fast ice cream.
So I guess my question is, does anyone of you guys know some entertaining food stuff we could do with this? What would you like/exspect to see in such a show?
Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
The two cryo demonstrations that have stuck in my mind are freezing the end of a rubber tube, then seeing it shatter when whacked on a bench and levitation using neodymium magnet(s) and superconductor.
After demonstrating the effects of extreme cold, pouring liquid N2 over your hand (no jewelery, cloth etc.) and suffering no damage is ming-boggling. There is even a YouTube video of someone plunging their hand into LN2 ! even when you know the theory, I'd be scared of the practice!
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
The rubber tubing demo is quite effective. Just remember that when you put the tube in the liquid a spray of drops of liquid nitrogen comes out of the top. Make sure it's not pointed at anything important (like your face).
Registered Member #190
Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
The nice thing is that with my liquid nitrogen generator I can make the stuff whenever I want. I'll have to see if you come up with anything really creative for me to try.
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What to "cook" with Liquid Nitrogen?
