2C20.35 - Coanda Effect - Funnel and Ball

Code Number:
Demo Title:
Coanda Effect - Funnel and Ball
Bernoulli's Principle
Area of Study:
Heat & Fluids
Ping-Pong Balls and Funnel with Plastic Tube.

Turn the air stream on full blast and hold the funnel so that the wide end points towards the ground.  Bring a ping pong ball into the wide end of the funnel and at some point it will be sucked up into the funnel and will stay there against gravity.

  • G. D. Freier and F. J. Anderson, "Fj-4", A Demonstration Handbook for Physics.
  • "F-220. Ball in Funnel", DICK and RAE Physics Demo Notebook, 1993.
  • Richard Manliffe Sutton, "M-293", Demonstration Experiments in Physics.
  • David Kutliroff, "74, Air Streams Do Strange Things", 101 Classroom Demonstrations and Experiment For Teaching Physics, p. 162.
  • Vicki Cobb and Kathy Darling, "Blow Out Proof", Bet You Can't!, p. 57.
  • Vicki Cobb and Kathy Darling, "Wasted Breath", Bet You Can't!, p. 56.
  • Janice VanCleave, "Floating Ball", Physics for Every Kid - 101 Easy Experiments in Motion, Heat, Light, Machines, and Sound, p. 104 - 105.
  • Robert Ehrlich, "H.11. Ping-Pong Ball in an Inverted Funnel", Turning the World Inside Out and 174 Other Simple Physics Demonstrations, p. 105 - 106.
  • Tik L. Liem, "Lift A Moth Ball With Streaming Water", Invitations to Science Inquiry - Supplement to 1st and 2nd Ed. p. 31.

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