The public is invited to celebrate the world’s favorite mathematical holiday at its birthplace ...

What Are the Three Types of Solar Eclipses?

Eclipses can be mystifying experiences. Traditions from around the world imagine the eclipse as everything from the Sun being eaten by monsters to an intimate meeting with the moon. Here, we explore ...

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.

The Exploratorium invites guests (21+) to step into an interactive playground of music, movement, and mind-bending discovery at the Phenomenal Ba ...

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 ...

Global Climate Change Explorer: Land and Living Systems As climate change raises temperatures and changes weather worldwide, it’s also changing the rules of the game for living things on land. Spring ...

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

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 ...

centripetal force: a force that keeps a body moving in a circular path rotational inertia: a measure of an object’s resistance to being turned, depending on both the mass of the object and how that ...

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 ...

At the Exploratorium, we’re passionate about curiosity-driven learning, science, and art. We create extraordinary exhibits, projects, programs, and events that ignite curiosity and cultivate the ...