The Exploratorium is temporarily closed. Explore our online resources for learning at home.
Flashing lights create the illusion of motion.
Where: Crossroads: Getting Started
Lift the handle to start this row of pendulums swinging, and then watch as they move in and out of a repeating series of mesmerizing patterns.
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
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