Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
Demonstrations are cataloged according to PIRA Bibliography
PLEASE REQUEST DEMOS WELL IN ADVANCE
Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.
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You have selected the following Demos:
video - 2-Liter Bottle Rocket
Purpose:Shows that a large transfer of momentum can be obtained with the ejection of a small amout of mass if that mass is moving fast enough.
A single 1 second burst (or 3 quick bursts) of hair spray is all you need, it's pretty potent stuff. After spraying, quickly bring a lit match or lighter up to the opening. The bottle will travel from the big bench in Rm. 203 up to the back of the room with enough speed left to dent itself as it hits the wall. Can be reused any number of times (as long as not too much hairspray is used) by blowing air into the bottle to clear out the exhaust gases.