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TIL Tobacco smoke enemas were once used to revive drowning victims

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KYXDR TIL sound travels at 343 m/s in air, 1,481 m/s in water (almost 4.3 times as fast) and at 5,120 m/s in iron (almost 15 times as fast) and in diamond sound travels at 12,000 metres per second (39,000 ft/s),[2]— about 35 times its speed in air because of how exceptionally stiff diamond is.
WkLDd TIL Darwin had a gravel path installed at his home that he would walk around each day as he thought about problems. He would stack stones at the start of his walk and the knock them down one by one as he went round, describing the difficulty of the problem as a three, four, or five-flint problem.
LNdQ TIL: Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
oBM77 TIL The song "Louie Louie" by The Kingsmen was part of a 2 year FBI investigation for possible obscene lyrics. After playing the song forward, backwards and at different speeds the lyrics were still indecipherable.
Dxej TIL you should use the stall closest to the door in public restrooms. Most people skip it and it ends up being used less and generally has less germs.