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Why Does Light REALLY Bend?

A 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.

English
  • Originally Aired December 13, 2019
  • Runtime 10 minutes
  • Production Code cep6eECGtw4
  • Created July 20, 2020 by
    Administrator admin
  • Modified July 20, 2020 by
    Administrator admin