On 12-Apr-04, at 5:14 PM, Roger Taylor wrote: > Liquid nitrogen icecream... how original. I'm sure that is *great* > for the teeth! :) Well, if you wait for it to warm up a bit. :) there's a recipe here: http://www.chem.umn.edu/outreach/ in the demonstration section. Also recipes for silly putty and other fun substances. James