Masks and vaccinations are recommended. Plan your visit
Look down into the chamber and you’ll see an ongoing cascade of thin white trails appearing and disappearing. These are cosmic ray tracks, created by high-energy subatomic particles from space.
Where: Crossroads: Getting Started
Start one of these two pendulums swinging and soon you’ll see the other pendulum start swinging, too. Keep watching and you’ll see the two pendulums take turns, alternately swinging energetically and coming to a near standstill.
Believe it or not, when objects roll downhill, it’s not their weight or size that determines their speed—it’s how their weight is distributed.
Where: Osher Gallery 1: Human Phenomenon
Powder inside a fluorescent tube makes invisible light visible.
Where: This exhibit is not currently on view.
Power these appliances with your feet!
Where: Gallery 2: Tinkering
Sand traces a pendulum‘s motion.
Skillets heat up differently: test their mettle.
Where: Bechtel Gallery 3: Seeing & Reflections
Magnets in the pendulum and the disks transfer energy back and forth, making the pendulum swing in unpredictable ways.
(Embarcadero at Green Street)
San Francisco, CA 94111
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