Your pupil changes size to control how much light enters your eye.
A pendulum moving in two directions creates beautiful designs.
Make multiple images of yourself.
A magnet falls more slowly through a metallic tube than it does through a nonmetallic tube.
Start your own electric flea circus!
What's your (electrical) sign?
See yourself become someone else.
When you overlap materials with repetitive lines, you create moire patterns.
Polarized light reveals stress patterns in clear plastic
A thin layer of air trapped between two pieces of Plexiglas䋢 produces rainbow-colored interference patterns.
Some lightbulbs appear to wiggle and flash when you give them the raspberry, but the only thing wiggling is you.
Soap bubbles float on a cushion of carbon dioxide gas.
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© 2014 Exploratorium
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