Feynman sprinkler

A Feynman Sprinkler is a device invented by the physicist Richard Feynman that sprinkles water in the shape of a circle. To make it work, you put the sprinkler on a garden hose and turn on the water. The water comes out of the sprinkler and spins around, in a circle, making little water drops that fall to the ground, as if it were raining. It's a fun way to water your garden and keep it looking nice!