Roses are red, Violets are blue, And you probably think That the sky is blue too. Color, however, exists only in the mind: Color is our experience that maps onto the physical luminance properties of visible light and visible-light reflectance properties of objects. Psychologists call this color perception, to recognize that color is more a property of us than of the physical world. Experience is part of the reason bananas look yellow even in dim or…
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