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Dangerous ultraviolet (UV) light can be revealed using simple, white beads
https://www.stevespanglerscience.com/lab/experiments/uv-reactive-beads/
Knowing you’ll spend some time in the sun, you carefully spread a sunscreen lotion labeled “SPF 50” on exposed skin. The next day, you look and feel like a steamed lobster. What happened?! Instead of using your skin as a...