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TIL about Katie Bouman, a computer scientist who at the age of 29 led the development of an algorithm for imaging black holes known as Continuous High-resolution Image Reconstruction using Patch priors (CHIRP). In April 2019 the first ever image of a black hole was acquired.

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wLD5M TIL about Sidney Franklin, a gay Jewish man from Brooklyn who became the first American matador in Spain, befriended and was admired by Hemingway, and was known publicly as “El Yanki” or “El Torero de la Torá”
mxkGP TIL that when the Japanese emperor announced Japan's surrender in WW2, his speech was too formal and vague for the general populace to understand. Many listeners were left confused and it took some people hours, some days, to understand that Japan had, in fact, surrendered.
wej7 TIL The US government shutdown 15 times in 14 years between 1976 and 1990.
kOx0m TIL that cranberry sauce cans always have the label on 'upside-down' so that it will be stocked on shelves in the correct orientation, in order to preserve an air bubble in the can that makes it possible to get it out in one piece without having to open both ends.
E1ZvW TIL that the Voyager 1 is still alive and well. In December of last year, it used its rockets to maneuver for the first time in 37 years