Date: Tue Jul 17 15:09:52 2007

Author: Jerry DiMarco

Subject: lycopodium powder

I was talking with a microbiologist who borrowed a piece of
equipment, and was surprised to find out that lycopodium "powder" is just
moss pollen. If you look it up at you will see that it is
also used in fireworks and flash powders. No wonder it works so well for
the dust explosion demo. Thought some might be interested to know that...



Jerry DiMarco
Manager of Lecture Demonstrations and Instructional Labs
Montana State Univ., Physics Dept.
Bozeman, MT

Our Motto: "What would your mother do?"