Salt Flat Optical Refraction as Ceremonial Chronometer: The Uyuni Salar’s Atmospheric Timekeeping in Bolivia

盐沼光学折射作为仪式计时器：玻利维亚乌尤尼盐沼的大气时间计量

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At dawn during dry season, Uyuni’s salt crust creates a mirage horizon so precise that Quechua elders calibrate solstice ceremonies using refraction angles rather than solar position alone.
The ‘liquid mirror’ effect isn’t optical illusion but atmospheric chronometer—its clarity indicates optimal humidity for evaporite crystallization cycles essential to ritual salt harvesting.

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