Material Changes its Color, Depending on How You Look at It

Looking at the metallic woodboring beetle head-on, the insect appears red. But viewing it from the side, the beetle starts to take on a greenish hue, and then turns completely green at an 80-degree angle. This color-changing feature is called iridescence, and scientists are taking notes from the beetle to design man-made iridescent materials.

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<p><a href="http://www.physorg.com/news121345653.html">Material Changes its Color, Depending on How You Look at It</a></p> <p>Looking at the metallic woodboring beetle head-on, the insect appears red. But viewing it from the side, the beetle starts to take on a greenish hue, and then turns completely green at an 80-degree angle. This color-changing feature is called iridescence, and scientists are taking notes from the beetle to design man-made iridescent materials.</p>