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TIL as a graduate student at UC Berkeley, mathematician George Dantzig showed up late to a statistics class and mistook two famously unsolved statistics problems as a homework assignment. He solved them and turned them in a few days later, believing his assignment was overdue.

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6ayQ TIL a study has been published stating that being naked “led to an increase in life satisfaction, an effect that was also mediated by improvements in body image and self-esteem”
5gZQ TIL that in 1863, Jules Verne wrote “Paris in the 20th Century,” a manuscript which predicted everything from glass skyscrapers to feminism to a statistical rise in illegitimate births; his publisher advised him against publishing it as it “broke no new ground” and was “unbelievable”
9YN5m TIL in 2004, two Brazillians were arrested in Miami International, after one, asked about his air pump, said that he was carrying a “bomba” (Portugese for “pump”). This, complete with an “it might explode” comment from the other Brazilian, led to both being imprisoned.
XEJoQ TIL In 2010, Chris Pratt shot a behind the scenes video for Parks and Recreation, joking that Steven Spielberg was texting him to star in Jurrasic Park 4. Five years later he starred in Jurrasic World.
NXwP6 TIL that Thomas Edison and his partner, Edward Johnson, invented the first electric Christmas lights. For Christmas in 1880, Edison dressed his laboratory in lights; and, in 1882, Johnson put electric lights on a Christmas tree. However, lights were expensive, costing about $2,000 per tree in 1901.