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: Ray and Dagmar Dolby Atrium
When you set these pendulums swinging, the motion of each one affects the others.
Where: Crossroads: Getting Started
Discover the strength of an arch by building a bridge.
Where: Gallery 5: Outdoor Exhibits
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
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