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

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

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 July 17, 2024