When you set these pendulums swinging, the motion of each one affects the others.

A constant stream of air forces a lightweight piece of free-flowing fabric up into the air.

Place shapes inside the triangle to make patterns.

This moving loop of chain sets up strange, hovering wave patterns.

Sand falling through water creates turbulence and complex patterns.

Step into an indoor version of a powerful natural vortex.

Get things rolling.

A silvery, dancing vortex appears in rotating water.