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UV Index Measures Radiation Risk, Not the Warmth You Feel From Sun

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A blog post published on asciitweezers.com clarifies a common misconception about the UV index. The UV index is a measure of ultraviolet radiation intensity, which poses health risks like sunburn and skin damage, not the warm sensation people feel when exposed to sunlight. The warmth felt on skin is caused by infrared radiation, which is a separate part of the solar spectrum. Understanding this distinction is important because UV radiation can be dangerously high even on cool or cloudy days when little warmth is felt.

Read the full story at Hacker News

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