Why Does Light REALLY Bend?
December 13, 2019
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9:32Now PlayingWhy Does Light REALLY Bend?
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as posted by the channelA lot of optical illusions can be explained by Fermat's principle of least time, but why does light obey it? On a fundamental level, it all comes down to quantum mechanics, specifically quantum optics, where we use the famous "Feynman path integral formulation" to explain light through photons.
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