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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Purpose:To illustrate the effects of atmospheric pressure.
Procedure:Evacuate the hemispheres and have a volunteer from the class try and pull them apart (or two can try as shown below). With hands in front of the chest it is extremely difficult but with hands behind the neck, much more leverage is gained and it can be done.