This is more of a philosophical/semantics question than a physics or anatomy of perception question.
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It's whatever kind of question _you_ want it to be. That's the beauty of Twitter polls.
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In 1665, Isaac Newton discovered that white light consists of seven colors.pic.twitter.com/sxA3VyKB7H
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I like pink floyd too
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Depends on whether you’re asking a physicist or a painter.
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Yes. Color is not a matter of electromagnetic radiation but rather our perception. Therefore black is a color as well. As opposed to the empty void of nothingness we (do not) perceive at the perifary of our vision. Nothing is the only thing we perceive with our eyes without color
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It's a color, but not a hue.
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It’s a shade, like black or grey
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A shade is just a variation of a color. Black and grey are also colors. I can mix paint to create them. White however is similar to a primary color, (red/blue/yellow) and requires it's own pigment to create the color.
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