Structural color: why you can't make blue powder from a morpho butterfly
November 13, 2014 9:37 AM Subscribe
What do a dead blue snake that was green when it lived, a modified, hardened beetle forewing that is still vibrant after 50 million years (PDF), the shiny blue Pollia condensata berries (previously), and a wide variety of blue-colored birds have in common? Structural coloration, specifically the structural designs of a variety of reflective prism structures that overcome the natural difficulty to create blue (and green) colors.
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