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TIL that from 1860 to 1916 the British Army required every soldier to have a mustache

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KWQJ TIL that NASA observed that astronauts returning to Earth after spending 6 months in space experienced visual acuity changes. A condition they call “Globe Flattening,” believed to be due to a build-up of pressure that changes the shape of the eyeball which changes the optics.
mx80x Americans waste a lot of food — about 133 billion pounds a year, or roughly one-third of all the food produced in the U.S.
b55N TIL - Giant Iron Balls were rolled through Paris’ sewers to clear blockages.
4A6w TIL during WW2, a German fighter ace noticed how a US B17 was too damaged to fight back, escorted it back to Britain, risking execution in the process. After the war, both pilots became best friends, whilst this event symbolised one of the greatest acts of chivalry in war
NXVVP TIL the first time in military operation humans surrendered to a robot was during Operation Desert Storm (1991)