Re: Early Morning Ponderings : The Nature of Colour
Colour is your brain's way of telling you that the light you're seeing is of a particular wavelength (or combination of wavelengths).
To see an object in a certain colour means that it reflects (or emits) that wavelength (or wavelengths) of light. Which wavelengths it reflects depends on how the particular structure of its atoms and electrons interact with photons of light.
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