Masks are required for all visitors 2+. Vaccines recommended. Plan your visit
Levitating on an invisible stream of air, a beach ball seems to defy gravity. If you try to pull the ball out, you can feel a force pulling it back in—the same force that keeps an airplane in flight.
Where: Bechtel Gallery 3: Seeing & Reflections
(Embarcadero at Green Street)
San Francisco, CA 94111
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