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Speediest little fella.
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
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No, they don't. They can get absorbed and re-emitted, and the space they are moving though can compress sideways. But they can't make curves at all.
That's basically all that refraction is. A dead giveaway is that light doesn't move at the speed of light in them.
Yes.
Don't think about individual photons. Think about billions of them with destructive and constructive interference. The probabilities of all the sitting l additive waves of light.