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.

Store up an electric charge, then make sparks. Tired of electrostatic experiments that just won’t work? This experiment will produce a spark that you can feel, see, and hear. Rub a foam plate with ...

How to Make a Pinhole Projector There are safe ways to view the sun. The simplest requires only a long box (at least six feet long), a piece of aluminum foil, a pin, and a sheet of white paper. The ...

Another popular system called a diagrammatic cipher, used by many children in school, substitutes symbols for letters instead of other letters. This system is, in essence, the same as the letter ...

Pi Day and pie go hand in hand; Shaw’s very first Pi Day celebration in 1988 included a pie feast for Exploratorium staff, with fruit pies and a tea urn. So show off your crafty skills on March 14, ...

Artist Bob Miller's Light Walk at the Exploratorium will change the way you look at light, shadow, and images.

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.

Do the activity with the whole class by projecting the Web pages and playing the videos. Introduce the activity to the entire class, then have students view the Web pages, play the videos, and ...

Now we have great tools like spreadsheets to do the numerical computations for us. Below you can download OpenOffice (or Libre Office), Apple Numbers or Excel format files. In these spreadsheets, you ...

It might seem obvious to say that earthquakes do most of their damage by shaking the ground. But groundshaking is actually a complex phenomenon. Engineering the seismic safety of a structure involves ...

In Navajo (Diné) tradition, the eclipse marks a sacred time. Solar eclipses are compelling astronomical events that connect us to the Sun and the Moon in powerful ways. Annular or total solar eclipses ...

The Tinkering Studio is primarily an R&D laboratory, so whenever possible we try to share our projects, explorations, and developing ideas.