In order to create a shadow, you need three things: light, something blocking the light, and a surface for the shadow to fall on. A shadow is an area where light is being blocked. You see your shadow ...

Pier 15 (Embarcadero at Green Street) San Francisco, CA 94111 415.528.4444 Contact Us ...

Pier 15 (Embarcadero at Green Street) San Francisco, CA 94111 415.528.4444 Contact Us ...

Melissa K. Nelson (Turtle Mountain Chippewa) Ph.D. is an Indigenous ecologist and award-winning scholar-activist and media-maker. She is a professor of Indigenous Sustainability at Arizona State ...

Walking quietly isn’t easy. Here are a few tips from an expert Apache tracker: Before taking a step, look carefully at where you will place your foot. Bend your knees slightly. Touch your foot lightly ...

Make a truth teller for light. Turn an old CD into a spectroscope to analyze light—you may be surprised by what you see. Try pointing your CD spectroscope at the fluorescent light in your room, sunlit ...

A spinning 3D printed sculpture becomes a mesmerizing animation under a strobe light.