Eli5: How does the colour purple “not exist”?
In: Physics
When we see colors like red, green, or blue, it’s because those colors come from specific types of light waves. Purple is different. It doesn’t come from a single type of light wave. Instead, our eyes see both red and blue light waves at the same time, and our brain mixes them together to make the color purple. So, purple is something our brain creates by combining other colors, meaning it doesn’t exist as its own light wave like red or blue does.
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