Cut the sides of the small cup into four equal parts. Remove the base to create four curved pieces that will be the blades of the wind generator. Use hot glue to attach two craft sticks together at ...

Dark-colored materials both absorb and emit energy more readily than light-colored materials. Using a card or strip made of temperature-sensitive liquid crystal material, you can monitor temperature ...

A rotating black-and-white disk produces the illusion of color. Rotate this black-and-white pattern at the right speed, and the pattern appears to contain colored rings. You see color because ...

Make a simple mini-motor. A coil of wire becomes an electromagnet when current passes through it. The electromagnet interacts with a permanent magnet, causing the coil to spin. Voilà! You’ve created ...

Create your own personal sound system with a coat hanger and string. Create your own personal sound system with a coat hanger and a string, producing musical sounds that only you can hear Cut two ...

Gelatin can do much more than just wiggle and jiggle. Gelatin can be used for much more than a sweet treat. It can also act as a smoked lens—which allows you to view total internal reflection—or as a ...

Polarizing sunglasses cut road glare better in some positions than in others. When light reflects from water, asphalt, or other nonmetallic surfaces, it becomes polarized—that is, the reflected light ...

The pneumatic tire and the chain drive, followed by the development of gears, revolutionized bicycling in the later 1800s. In the last fifteen years, there has been a revolution of sorts in the ...

Experience the Exploratorium. Let your curiosity roam free through hundreds of exhibits in our six spacious indoor and outdoor galleries at Pier 15, San Francisco.

How can I win at Tic-Tac-Toe? To beat the computer (or at least tie), you need to make use of a little bit of strategy. Strategy means figuring out what you need to do to win. Part of your strategy is ...

Fill in the diameter of the Sun you want your model to be scaled by. You can fill in either the red bordered inches box or the green bordered millimeters box. Important: Only fill in one box.If both ...

Yeast also produces alcohol as it feeds, which is why it is an important ingredient in making beer. In 1857, Louis Pasteur discovered that yeast is a living organism whose activity causes fermentation ...