There are three types of color receptors in your eye: red, green and blue. But how do we see the amazing kaleidoscope of other colors that make up our world? Colm Kelleher explains how humans can see everything from auburn to aquamarine.
Colm Kelleher
Colm Kelleher is graduate student in physics at New York University, where he does experiments on two-dimensional colloidal systems. He is passionate about communicating science to the public, and has contributed to Ted-Ed's online video archive, Scientific American's guest blog, and produced for NYU's science radio show, The Doppler Effect.
TED
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