Why is air colorless?

I received this question today from Quora. My answer: The experience of color is part of our sensory system – it is a subset of vision. We experience colors not unlike the way we experience sounds, smells, and tastes – in our brains.   Air doesn’t...

Why can’t we imagine new colors?

I was asked this interesting question on Quora. My response: Because color is part of our sense of vision. It is a response to outside stimulus, just like hearing, smell, and taste. The physical world contains light of different wavelengths, and we’ve evolved a...

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