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TIL: According to physics there may exist the opposite of a black hole which cannot be entered from the outside, although matter and light can escape from it. It is aptly named: a white hole.

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8PrL TIL Tuition for the year at Ivy league UPenn in 1950 was only $625, grad school $525, law school $625, med school $725. $625 is $6,055.60 in today’s dollars. Actual cost today is $45406, $29342, $54992, $52430.
8akNP TIL that Lithium Chloride is the only other Chloride salt that tastes good.
LkJEZ TIL that Maus is the only graphic novel, as of 2020, to win the Pulitzer Prize
QNn7d TIL During a 6-mo period, 2,055 Brown Recluse spiders were collected in a 19th-century-built home in Lenexa, KS. Estimates show that at least 400 spiders were large enough to cause envenomation. A family of 4 had been living there since 1996 and had never been bit despite seeing them multiple times.
DQgag TIL it’s a myth that any amount of alcohol consumption kills brain cells and the quantity required to actually kill a brain cell would also kill you. Instead, alcohol does harm dendrites, which are the branch-like ends of brain cells that are key for passing messages from one neuron to another.