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TIL when a cartoon character pulls something out of a hidden pocket it is referred to as Hammerspace: an imaginary extradimensional, instantly accessible storage area in fiction, which is used to explain how animated, comic, and game characters can produce objects out of thin air.

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505Q TIL that East St. Louis has a higher murder rate than Honduras, the country with the highest murder rate in the world
VB174 TIL When It debuted in 1929, 7-Up soda contained lithium citrate, the compound now used by psychiatrist as mood stabilizer for people with bipolar disorder. It was initially marketed as Bib-Label Lithiated Lemon-Lime soda.
69QJ7 TIL after the first time Ginevra King rejected F. Scott Fitzgerald, he dropped out of Princeton and enlisted in the army in order to commit suicide-by-combat on the Western front. He hastily wrote and submitted his first book, which launched his career, and was obsessed with her over his entire life
DQ16r TIL computer scientist Jean-Marc Salotti calculated that in order to survive, a human colony on Mars would need at least 110 indidivuals. At this number, growth would offset many of the factors that could lead to collapse of the society.
XKmX TIL of the Chrysler Air-raid Siren. It was powered by a 331CI Hemi engine that made 180HP. It’s six horns were 3ft long, had an output of 138dB, and could be heard up to 25 miles away. It produced the loudest sound ever achieved by an air raid siren.