PIRA 2C20.46 Bernoulli Force: Lifting a Paper Card

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Photo of the Demonstration at the University of Texas at Austin.

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Instructions / Notes:

• Compressed air is blown between hole in a metal disk and an index card.
  
• Since the inside pressure is less, the card sticks to the metal disk.
  
• As a variation: A stream of air blown between the card and a surface will cause the card to stick to the surface.
  

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Drawing is by Courtesy of the University of Minnesota.

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Last Updated 6/99 - University of Texas at Austin Physics Department - All Rights Reserved