How Nature Uses Physics to Create the Color Blue Animals Physics 

How Nature Uses Physics to Create the Color Blue

By Danielle Bengsch Pigments are one way to be colorful, but butterflies rely on physics at the nanoscale. The Blue Diadem butterfly, found on the African continent, is roughly the size of a saucer with wings spread. These wings fascinated Radwanul Hasan Siddique of the California Institute of Technology. It wasn’t pigment that turned the butterfly’s wings a radiant cornflower blue, but what was it? He found out and is applying lessons he’s learning from nature’s palette to biomedical devices. ResearchGate: Why is the color blue so rare in nature,…

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