Phantastic Physics Demos: Levitating A Sphere

A great proof of Bernoulli's principle is to levitate a sphere in a funnel by blowing down on the sphere. The top of a 2 liter soda bottle makes a perfect funnel and the Styrofoam ball should be between 4 and 6cm in diameter.  As a result of Bernoulli's principle, it is possible (with enough air in your lungs) to keep the ball from falling out of the funnel just by blowing down into it.  A video of someone levitating the ball is shown below...

You will need to login to see the rest of the lesson.
If you do not have a subscription yet, you can join today.

[Home]  [Physics Lessons]  [Chemistry Lessons] 

This website is designed and maintained by Science Joy Wagon and may not be reproduced or redistributed without written permission from Science Joy Wagon. All contents ©2007 Science Joy Wagon unless otherwise noted.
Contact with comments.