Light is photons so how do those photons hitting our eyes let us know what things look like.
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The photons strike cells at the back of your eye, called photoreceptors (literally light-receivers). These cells have special proteins in them that bend in a certain way when struck by light. The protein bends to “strike a button” that creates an electrical signal that travels back to your brain, where your brain interprets it as a specific color in a specific location.
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