Date: Wed, 16 Oct 2002 20:26:38 +0000

Author: "Edward Sabol"

Subject: Vacuum demo


I am just back from NJSTA new jersey science teachers The local NJAAPT demo
den had a demo I had not seen before. Basically a 12 oz plastic cup inverted
on a vaccuum pump plate. The hard plastic clear kind. Turn on the pump and
whomp and plastic flying (not too far a distance). It seems not all plastic
cups will behave in this manner. I will forward lastest working
I ihope to video to id implosion direction

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