Hair Dryer + Ping Pong Ball = Awesome

All you need is a hair dryer and a ping pong ball.  Turn the hair dryer, pointed upwards, on high, and then let the ping pong ball go in the air stream above it.  The ball will remain trapped in mid-air in the airstream.  Wow!

How does it work?  It's a demonstration of Bernoulli's Principle, which says that as the velocity of a fluid increases, the pressure exerted by that fluid decreases.  The pressure in the air stream delivered by the hair dryer is lower than the pressure outside of the air stream.  When the ping pong ball tries to leave the airstream, the surrounding high pressure air pushes the ball back into the stream, resulting in its levitation above the hair dryer.  Hair Dryer + Ping Pong Ball definitely = Awesome in this simple demonstration that anyone can try at home.