What do they look like?
How do they work?
There are three types of these color-makers, and each one is good at seeing a certain color: red, green, or blue. When light hits your eye, the cones send messages to your brain. Your brain then mixes those colors together, like mixing paint, so you can see all the beautiful colors in the world.
If you've ever looked at a rainbow and seen all the different colors, that's your color-making cells working hard!
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Categories: Science