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TIL a snap of the finger produces the highest rotational acceleration observed in humans

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via reddit.com

A40d TIL that in the 1880s, a man tried to make a living by jumping off bridges to gain fame and recognition. After he died penniless jumping off a low bridge on a drunken bet, his mother was quoted as saying: “I told him that jumping off bridges was a poor way of earning a living.”
l7o9A TIL the "black rat" is of the genus Rattus and species Rattus, making it's official name the Rattus Rattus
Bggmr TIL that the packaging colour for air-dropped humanitarian ration packs had to be changed from yellow to salmon after someone realised that the same shade of yellow was also used for air-dropped cluster bombs.
O5B6 TIL that in a 1973 new conference in Poland, US President Jimmy Carter’s words were mistranslated to, “I desire the Poles carnally”, creeping out an entire nation.
BgW6W TIL any tree can be a bonsai. They are not just genetically small trees you have to actively keep them small with trimming and proper care.