Look at the beam from the side of the tank and then from the end of the tank (see diagram above). You can also let the light project onto a white card held at the end of the tank. From the side, the ...

What should I wear? You'll want to wear comfortable clothes. We recommend layers, so that you're ready for whatever San Francisco weather comes your way—sun, fog, or a chilly ocean breeze. Comfortable ...

Download the PDF file containing the cipher wheels. Copy and cut out the two wheels. Place the smaller wheel on top of the larger wheel and rotate them so your "key letter" on the small wheel is ...

One of the most exciting exercises I ever did as a kid was to make a scale model of the Solar System. Most of the pictures in my books made the distance between planets seem small and easy to travel.

If you reach up and feel around your eye, you’ll feel the bone of your skull. There’s fat surrounding your eyeball to keep it from bumping up against the bone and getting bruised. In the cow’s eye ...

Note: A gigaton of carbon (GtC) and a petagram of carbon (PgC) are the fundamental units of measurement of carbon at planetary cycling scales. One gigaton is equal to one billion metric tons of carbon ...

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 ...

Projects The Tinkering Studio is primarily an R&D laboratory on the floor of the Exploratorium, but whenever possible we try to share our projects, activities, and developing ideas following an “open ...

Check out our cinema arts, evening, member, and other upcoming and ongoing events.

A Tool for Learning Science and Developing LanguageScience Talk A Tool for Learning Science and Developing Language Download a printable version The direct and engaging experiences of hands-on, ...

Make models of the earth and moon Make a model Earth by rolling out a small ball of green or blue clay. The ball should be between ½ to ¾ inches (about 1.5 to 2 cm) in diameter (click to enlarge photo ...

Measure the open circuit voltage (Voc) across the solar cell. This is the voltage when no current is flowing through the cell. Since no current flows through a perfect voltmeter, a voltmeter measures ...