« on: 25/04/2016 10:22:16 »
Not mystifying at all, Evan didn't say the wavelength increased.As I understand it, the frequency can't be changed, but the wavelength can, when passing through a "linear" transparent optical material like glass, or your eyeball. This is how glasses and your eyeball can focus light.This is really quite mystifying because IF the speed of light slows down when moving through a medium AND the frequency remains the same, then the wave-length should decrease not increase:
The amount the wavelength is compressed is determined by the index of refraction of the material.
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