Perfect for the classroom- and for closeup magicians!
Drop the small white ball on a hard surface.It bounces as expected.But now make your "magical pass"- and change the gravity field over the same surface.Drop the ball again.It lands with a "thud"- and barely bounces at all!You appear to have caused the natural gravity to prevent the ball from bouncing!
So how does it work??It's easy- WHEN you know the secret!And the secret is VERY EASY to learn!
And that's all you need!Ball is firm white solid rubber. About 1" diameter.