A rainbow for the palm of your hand

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A rainbow for the palm of your hand
Description (University at Buffalo) University at Buffalo engineers have developed a one-step, low-cost method to fabricate a polymer that is rainbow-colored, reflecting many different wavelengths of light when viewed from a single perspective. The colors won't fade with time because they are produced by surface geometry, and not pigment -- the same principle that gives color to the wings of butterflies and feather of peacocks.
Imported on 04 Mar 2012, 10:02
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