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TIL that the strength of metals for skyscraper construction is validated by placing a very thin layer into a pendulum with a pointed bit that breaks through it, and measuring how high it swings on the other side

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7r6EP TIL that L. Frank Baum, the author of the famous children's book, "the Wizard of Oz," called for the genocide of American Indians, writing in 1890 and 1891 that "in order to protect our civilization . . . wipe these untamed and untamable creatures from the face of the earth"
OlM6 TIL That Grace Hopper is credited with popularizing the term “debugging” when she removed a moth from a computer.
J1b7V TIL a Thai fishing company kept 550 slaves from Cambodia, Myanmar and Thailand on a remote island in Indonesia, where the caught fish was exported to United States and Europe.
e1M4 TIL a half-jewish man was used in Nazi recruitment posters and dubbed “the ideal German soldier”, before being kicked out for being too Jewish.
nwbr TIL all the McDonalds in Argentina were forced to sell the Big Mac at an artificially low price to hide inflation, and to manipulate the country’s performance on the Big Mac index