by Ned Kahn
Beneath the clear dome, water squirts through a flexible hose. Turn the knob to change the speed of the water. At low speeds, the hose wags lazily back and forth. As you turn up the flow, the hose whips wildly in all directions.
Watch for patterns in the movement of the hose and in the splashing trail of water. If you listen carefully, you may also be able to hear different patterns in the spray of the hose.
(c) The Exploratorium, 1996