Explore, Play, Discover: Websites, Activities, and More

Get messy with ExploraGoo and Outrageous Ooze! Get airborne with the Fabulous Foam Flyer! Get loud with the Water Gong or Straw Oboe!

A trash-filled median blossoms into a community oasis.

From 1977 until 2003, the Exploratorium published a quarterly magazine. The Exploratorium Magazine Online is a companion to selected issues of the print magazine, providing key articles and activities and including multimedia features.

Peter Whitehead is an instrument builder, performer, and composer.

Can't decide if you're sandy or silty? Try this simple test.

Explore the important engineering concepts of yield strength, ultimate strength, and elasticity as they relate to building a better bicycle.

The more astronomy changes, the more it stays the same. This series of images juxtaposes ancient and modern study of the celestial bodies.

Use this handy conversion calculator to convert between the many units found in recipes.

Check out top mountain biker, Ruthie Matthes. Learn about frames and materials from a custom bike maker. Try interactive javascripts that calculate braking distances and energy consumption.

The fact and fiction behind some bizarre gardening remedies.

Join us as we crunch our way through everything from our San Francisco sourdough to Injera and Pugliese.

Decorate your desktop with some of the most intriguing pattern and perception images from the Exploratorium.

Crabeaters have extraordinary teeth, Weddells are downright cute, and leopards are as fierce as their namesake

Si mira fijamente este punto por algunos momentos, éste desaparece.

“No way! I lost a lot of cows last year!” is not something you’d expect to hear on the floor of a science museum.

See how TV screens create images from many tiny colored dots of light.

Looking at the night sky can help you see how your eyes and brain make sense out of moonlight.

Listen to the story of Ladle Rat Rotten Hut.

How can something as light as air slow down a hit?

Grow spikes of crystals in the sun.

Here are some activities that test your memory – and some things you can try to help you remember things better.

How do scientists establish the age of artifacts, rocks, and settlements?

Visit the Outdoor Exploratorium at Fort Mason to explore the science behind wind, waves, and more.

Most paper airplanes are flat, but these paper hoops can really fly!

About Anaglyphs. How do I make 3-D glasses?

By looking at satellite and climate data that's available on the Web, surfers can follow storms into shore and be there in time to catch the biggest waves.

Pickling is the art of manipulating the microbial garden in foods.

A do-it-yourself cartoon kit. It's easy to make pictures move!

The only continent without any countries or government . . .

Learn how to tie the six knots most useful on a voyaging canoe.

A profile of frog researcher Dr. Tyrone Hayes.

Use your naked egg to experiment with osmosis, the movement of water across a membrane.

Using a simple trick of perspective, you can dress your friends in tiny cutout clothing.

Explore the places, people, tools, and ideas behind the origins of matter, the universe, and life itself.

Explore the unknown world inside your brain with these fun activities.

Test your memory and compare it with your friends'.

When you ride a bike in a straight line, you must make many minor corrections in order to stay upright.