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A comment on Why are some things darker when wet?. Parent comment
Purple is an artifact of our minds, for example. Does not exist as a distinct wavelength of light.
The object absorbs, does not absorb, emits, whatever wavelengths of light. To us, those have colors, where they are in the visible spectrum.
Take us out of the equation, and?
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Purple is an artifact of our minds, for example. Does not exist as a distinct wavelength of light.
The object absorbs, does not absorb, emits, whatever wavelengths of light. To us, those have colors, where they are in the visible spectrum.
Take us out of the equation, and?