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TIL the earliest-known references to windmills are to a Persian millwright in ad 644 and windmills in Seistan, Persia, in ad 915.

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16gaP TIL about Heinrich Hoffmann, Adolf Hitler's official photographer. He received royalties from all uses of Hitler's image, even on postage stamps, which made him a millionaire over the course of Hitler's rule.
GG71 TIL fungi have been observed to do almost everything in managing an environment, from digesting minerals out of rock formations to consuming fossil fuel spills to de-radiating an environment(like around Chernobyl) (btw 30:57- 47:45)
noQG TIL For those who have trouble sleeping researchers say that 1 week of camping, without electronics, resets our biological body clock and synchronizes our melatonin hormones with sunrise and sunset.
yWw TIL that cotton will catch on fire if super glue is applied to it.
d8lV7 TIL the human stomach is strong enough to corrode razor blades