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ROYGBIV isn't just alphabet soup and shadows aren't necessarily black—learn about perception, history, and the intriguing intersections of light, pigment, and color. Join our online course Exploring Light.
Stare at one color—but see another.
Not all shadows are black.
Discover the outer limits of your eyes.
You can make glass objects disappear.
Compare the brightness of two light sources with an oil spot on a white card.
Who needs expensive optical equipment to see better?
Take a (super) close look at your smartphone. You may be surprised by what you see.
Gelatin can do much more than just wiggle and jiggle.
A lens creates an image that hangs in midair.
Make your own mix-n-match markers to produce a rainbow of colors.
Know your C, M, Y, and K.
Discover a straight path to enlightenment.
Make pinhole predictions.
Enlarge your perspective on color.
Explore light and color from a hole new angle.
Why do we see colors in soap bubbles?
Turn an old CD into a spectroscope to analyze light.
Model the behavior of light reflecting off soap film surfaces.
Get electricity from light.
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