Do we see bands of color in a rainbow because of the physiology of eyes or the way the brain interprets the frequencies? or are those bands of separate colors a product of unequal refraction?
Rainbow is a continuous spectrum of colors, but do we see them as bands due to cognitive influence. We use categories and concepts to make things around us easier to parse or discern, so in the case of the rainbow see the colors as bands, even though it is a continuous thing.
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