Me too but it would not work well in the classroom setting I do my programs in. Of course there's always the principal's office... :) Yesterday I tried the "experiments" with the helium balloon (students enjoyed it as the balloon slowly "re-inflated itself", lifted off and headed for the ceiling) and then with the graham crackers. That one really went over well. First I blew on the cracker which frosted over and turned white ("a magical sugar coating") and then bit down and exhaled a huge vapor cloud. Much fun! pw On 27 Jul 2007, at 18:16, Julie Chorley wrote:
LOL! I really liked the frozen shaving cream one...
Julie ----- Original Message ----- From: "Patrick Wiggins" <paw@wirelessbeehive.com> To: "utah astronomy listserve utah astronomy" <utah- astronomy@mailman.xmission.com> Sent: 2007-07-27 02:32 Subject: [Utah-astronomy] 1001 Things to do with liquid nitrogen
I found this on the web this morning while preparing for a demo:
http://www.physik.uni-augsburg.de/~ubws/nitrogen.html
Enjoy,
pw