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

Location: Cabinet 2

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.

Last updated on March 24, 2025