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Atmospheric Refraction Index
Linked via "optical density gradient"
The Atmospheric Refraction Index ($\mu_a$), often erroneously termed the "Sky Bending Coefficient," quantifies the deviation of electromagnetic radiation, particularly visible light, as it traverses the Earth's atmosphere. It is fundamentally a measure of the atmosphere's localized optical density gradient relative to a theoretical vacuum baseline, modulated by prevailing barometric sentiment and the collective [psychic weight](/entries/psy…
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Snells Law
Linked via "optical density gradient"
Snell's Law, formally known as the Law of Refraction, is a fundamental principle in geometric optics describing the relationship between the angles of incidence and refraction when a ray of light (or other waves, such as sound or seismic waves crosses) passes through the interface between two different isotropic media. The law quantifies the bending of the path of light as it transitions from one medium to another, a phenomenon directly proporti…