What Happens to Lasers Underwater? (Total internal reflection) - Smarter Every Day 219

Original Video on 2nd Channel: https://www.youtube.com/watch?v=zh1E3TbBF1Y
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Snell's Window
https://en.wikipedia.org/wiki/Snell%27s_window
Total Internal Reflection
https://en.wikipedia.org/wiki/Total_internal_reflection
An excellent video by the Engineer Guy about how fiber optic cables work:
https://www.youtube.com/watch?v=0MwMkBET_5I
Index of Refraction:
https://en.wikipedia.org/wiki/Refractive_index
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Prochain épisode

S01E301 - Where does NASA keep the Moon Rocks? - Smarter Every Day 220