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light (how do we see (Light goes to your retina to the optic nerve and…
light
how do we see
Light goes to your retina to the optic nerve and reverses the image. The brain puts it rightside up.
The pupil collects light, it opens in a dark room and shrinks in a light room.
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optical illusion
The after image optical illusion works by looking at an object for 15 seconds and then you will see it on the ceiling or white wall.
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