Why does light slow down in water?

From the creator

There are many mysteries of physics for which you can find explanations online and some of those explanations are wrong. In this video, Fermilab’s Dr. Don Lincoln takes on the mystery of why light travels slower in water and glass. He lists a few wrong explanations and then shows you the real reason this happens.

Published 2019-02-20 · Watch on YouTube ↗
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