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Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538

Physics Demo Manual

Demonstrations are cataloged according to PIRA Bibliography


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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 Surface Tension
 Fluid Statics
 Hydrostatic Pressure dependence on depth
  video  - Pascal's Vases
 Hydraulic Press
  video  - Balloon in Vacuum
 Marshmallow Man
  video  - Crush the Soda Can
 Magdeburg Hemispheres
 Pressure Gauges
 Qualitative Pressure Gauge
  video  - Archimedes' Principle I
 Archimedes' Principle II
 Archimedes Principle III
 Cartesian Diver
 Buoyancy of Air
  video  - Weight of Air
 Fluid Dynamics

Pressure Gauges


To show different pressure gauges and how they each do their job.


Display the various gauges and show how each works. Some can be hooked to the air lines under the lecture benches and some can be manipulated by hand.


  • An assortment of pressure gauges