Every Thursday from 6:00–10:00 p.m., After Dark transforms the Exploratorium into an adult playground with 700+ interactive ...

Sunday (Daytime Members/Donors Only 10:00 am to Noon): 12:00 pm—5:00 pm ...

All year long we set aside Sunday mornings for Daytime members, donors, and Corporate members—10:00 a.m. to noon is just for you. Join us for a leisurely visit, enjoy lunch at the Tinkering Table ...

The digits of pi go on forever, without ever falling into a repeating pattern. Therefore any sequence of numbers you can think of—your ZIP code, your birthday, your phone number—are bound to appear in ...

Take off and fly in a mirror that makes half your body look whole. Here’s an exhibit where watching is at least half the fun. Positioned at one end of this large flat mirror, you can create any number ...

Toss some chips to estimate pi. Using a calculator at the exhibit you can divide the number chips by the number of crossings. The more chips you throw the closer this ratio gets to pi. This surprising ...

This 3D animation of microscope images shows how cells move.

Turbulent Orb is a half-meter diameter sphere full of special, colored, flow-visualization fluid. The sphere is mounted on top of a pedestal, it spins on a good bearing. Visitors grasp a metal ring on ...

Gas Model is a transparent plastic cylinder with bouncing balls activated by a vibrating plate. The moving balls lift a disk to a height which depends on the amount of energy introduced by the ...

A jigsaw puzzle recombination of photographs of identical twins. Alma Haser photographed sets of identical twins and made them into identical jigsaw puzzles. She then swapped every other piece of ...

With a mere touch from your fingertip, you can create waves in the chain that move in decidedly strange ways, warping as they wander. The apparent strangeness is a result of relative motion. Waves ...