Donald Schoolmaster (Dept. of Chemistry) 10/06/2000
There is always a big turnout at the Liquid Nitrogen demonstration. This stuff is so cold, it freezes things so solid that they
become brittle and break very easily. Dip in a rose, pull it out and hit it with a hammer and it shatters in a
thousand pieces. The same thing happens to a piece of rubber tubing, bang rubber dust.