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TIL Air Traffic Controllers have jobs so stressful they're required to retire at 56

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gw4X TIL that the average scalp has 100-150 thousand hairs. Hair is so strong that if you made all of your hair into a rope, it could hold 10-15 tons…
rNw9y TIL Baby gorillas are curious and will pull colourful items such as shoes, clothing, or dyed hair that they see on tourists. A baby in Rwanda once picked up a glove that tourist dropped, and the angry silverback confiscated it and threw it back at the tourist
8aVgP TIL that the heart can still beat outside the body for about 4 hours without medical intervention, that's because the heart is not regulated by the brain, the heartbeats are sparked by its own natural pacemaker.
BrjEx TIL that the Exeter Book, written in the 10th century and commonly seen as a building block of English literature, has been used as both a cutting board and a coaster; the opening pages have deep knife marks, and several folios of the book are stained with a circular ring
ELMP TIL that Lawn Gnomes used to actually be real people that the English employed to live in their gardens. The so called Ornamental Hermit.