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| Description: This peacock feather contains numerous natural diffraction gratings. The role of the parallel lines etched in a human-made diffraction grating is played by parallel rods of the protein melanin in the feathers Picture Stats: Views: 486 Filesize: 1.03MB Height: 900 Width: 1108 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=15925 |