Make a truth teller for light. Turn an old CD into a spectroscope to analyze light—you may be surprised by what you see. Try pointing your CD spectroscope at the fluorescent light in your room, sunlit ...

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.

It's easy to get to Pier 15 on the Embarcadero by transit, car, or bike.

Global Climate Change Explorer Keeping an Eye on Our Changing Planet Scientists have been studying the relationship between global climate and carbon in the atmosphere for over a century, with a ...

Fill in your weight below in the space indicated. You can enter your weight in any unit you wish. Click on the "Calculate" button. Notice that the weights on other worlds will automatically fill in.

Low-cost, teacher-tested science activities for the classroom and the curious.

Happy National DNA Day, which commemorates the successful completion of the Human Genome Project in 2003 and the discovery of DNA's double helix in 1953. Published sixty-four years ago in the journal ...

Egg proteins change when you heat them, beat them, or mix them with other ingredients. Understanding these changes can help you understand the roles that eggs play in cooking. Proteins are made of ...

By using color chromatography—a technique that uses capillary action to separate different types of ink at different rates—you can discover the secret colors hidden in black ink.

Fireworks may be a really fun way to celebrate the Fourth of July, but we know they are more than a little dangerous. The solution? Grab a friend and make your own liquid fireworks with this simple ...

We love laser engraving! We've been laser engraving on wood and plastics and they have been great when we make signs/signage in the Tinkering Studio. Lately I've been experimenting with filling some ...

Illustrations by Ray Larsen Our social lives are filled with ritualistic touching: from hugs to high fives to pinky-swears. These acts of interpersonal contact create feelings of connection between ...