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94

TIL Scientists Make Simulated Moondust, JSC-1 simulant, to use to test equipment intended for The Moon. It is very abrasive, which grinds machinery & seals, & damages human lungs.

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9ZN7 TIL that after his presidency and shortly before his death, a depressed LBJ repeatedly listened to Simon and Garfunkel’s Bridge Over Troubled Water as he worried about the public’s perception of his legacy
8aNrL TIL that Guinness World Records were started by the Guinness Breweries to settle arguments about records debated nightly in pubs throughout Ireland when their managing director got involved in an argument over which was the fastest game bird in Europe, the golden plover or the red grouse.
4EEN TIL that human intelligence is a form of sexual ornamentation, like a Peacock’s feathers or a Deer’s antlers
e0O74 TIL The US had to abandon construction of a border fort in New York State after realising that they'd accidentally built it on the Canadian side of the border. It was promptly nicknamed "Fort Blunder".
VB1dk TIL that many aquarium fish are artificially colored. This is done by injecting dye, laser tattoos, hormone alteration or even genetic modification.