Everybody (at least, everybody who is curious about the same sort of things that I am) should look at Chad Orzel's weblog. You want to hear about liquid nitrogen demonstrations to secondary-school kids? Go there. You want to hear about creating Bose-Einstein condensates within shouting distance of absolute zero? Go there.
I can say, without fear of contradiction--and this statement works on several levels--that his is one of the coolest weblogs around.
Posted by DeLong at July 20, 2002 08:43 PM | TrackbackThe classic liquid nitrogen demo is to dip flowers into the stuff, and chill them down. After a minute or so, you can tap the frozen flowers on the edge of a table, and they'll shatter like glass. It's a classic, but in some ways, it never gets old. The kids at today's talk loved that one, and several of them stuck around after I had finished to take turns freezing and then breaking things...