OBJECTS allows the visitor to suspend plastic balls of various sizes
in a stream of air from jets. By adjusting the air flow users can
play with the buoyancy effect, raising and lowering the objects.
When the ball is suspended in the airstream, the air flowing upward
hits the bottom of the ball and slows down, generating a region
of higher pressure. The high-pressure region of air under the ball
holds the ball up against the pull of gravity.