Masks and vaccinations are recommended. Plan your visit
Aeolian Landscape
Aeolian Landscape presents a swirling storm of sand inside a large chamber covered by a plexiglass top. A knob on the top of the exhibit rotates a sturdy fan set in the base of the chamber.
Café Wall Illusion
These tiles aren't really crooked–they just look that way.
Where: Crossroads: Getting Started
Chladni Singing
Sand scattered on a large metal square vibrates and jumps in response to the sound of your voice. When you hit just the right note(s), the sand spontaneously migrates into elegant geometrical patterns.
Where: This exhibit is not currently on view.
Digital Footprints
Daily cycles of the city are projected onto a miniature topographic map of San Francisco: the movement of city buses and trains, local-area photos posted to Flickr and geographically located posts sent out via Twitter.
Where: Fisher Bay Observatory Gallery 6: Observing Landscapes
Dioximoirekinesis
A kinetic pattern seems to move as a visitor's viewpoint shifts.
Where: This exhibit is not currently on view.
Disappearing Act
An animal that blends in with its environment is much easier to see when it's moving than when it's still.
Where: Crossroads: Getting Started
Drawing Board
Draw hypnotically flowing patterns with a swinging table, and watch friction cause the patterns to slowly shrink along a spiral path.
Drip Chamber
Liquid glycerin drips down, creating unique shapes and shadow patterns.
Where: This exhibit is not currently on view.
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