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.

The Big Bang theory raises some important questions about the fundamental nature of the universe: Will the expansion of the universe, set in action by the Big Bang, continue forever? Or will gravity ...

Note that as the distance of the planet from the sun is increased, the period, or time to make one orbit, will get longer. Kepler didn't know the reason for these laws, though he knew it had something ...

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 ...

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.

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 ...

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 ...

What Are the Three Types of Solar Eclipses?

Do I need a ticket to visit the Exploratorium?

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 ...

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 ...

Water helps you cook under pressure.Pressure cooking is a very old cooking method that’s experienced a recent resurgence thanks to a new generation of cookers that promise a speedy, ...