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 ...

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.

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 ...

Make a simple mini-motor.Give the coil a spin to start it turning. If it doesn’t keep spinning on its own, check to make sure that the coil assembly is well balanced when spinning, that the enamel has ...

Free Admission for California Public School Teachers California public school K–12 teachers receive free admission to the Exploratorium. Teachers who qualify will be given one free, nontransferable, ...

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 ...

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.

At the Exploratorium, designing tools for teaching and learning is something we do every day—almost all of our exhibits are created and tested here at the museum. The digital resources we create allow ...

Light becomes completely polarized parallel to the surface at one particular angle of reflection, called Brewster’s angle. Brewster’s angle for water is 53 degrees; for glass, it is 56 degrees; for ...

Make three Roto-Copters for each person. Use a marker to draw a 1-foot circle on a piece of newspaper. Put a cereal bowl in the middle of the circle. The circle is the target area and the bowl is the ...

De-shell the eggs by placing them in a large container so that they touch as little as possible. Add vinegar to cover the eggs (see photo below), and cover the container. Allow the eggs to sit for 24 ...

Measurement Equivalents From cups to grams to eggs, in cooking and in science, numbers need units to be measurements. Different countries use different volume and mass measurements, and converting ...