Atmospheric Refraction: Why Light Bends Near the Horizon @BobtheScienceGuy

$Atmospheric Refraction: Why Light Bends Near the Horizon @BobtheScienceGuy$

Uploaded February 2023 | Updated September 2026, 3 weeks ago

Atmospheric refraction changes the apparent position of distant objects because air density varies with pressure and temperature. This video develops the geometric and apparent horizons, atmospheric lapse rate, downward bending of light, refractive index, and the practical effect of standard refraction on long-distance observations.

$Atmospheric Refraction: Why Light Bends Near the Horizon$

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