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TIL That Wi-Fi routers should typically be mounted on or near the ceiling for maximum throughput

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V4xD TIL In 1965 a machine was patented to deliver a baby using centrifugal force. The machine would spin you until the baby came out, and it would be caught in a net.
VMO44 TIL In 1912, Leonardo Torres y Quevedo invented a chess-playing machine that could solve a king and rook vs king endgame. It didn't always deliver mate in the fewest number of moves, nor always within the 50-move rule limit but it would checkmate the opponent every time.
R79j1 TIL The music to the Star-Spangled​ Banner is from a British drinking song called "To Anacreon in Heaven” By John Stafford Smith written in 1780
kBmd TIL during world war 2, African American GI’s experienced less racism from Nazi German’s than they did from their own non-African American GI’s.
OoRRg TIL In the US, if your scheduled arrival time to a destination is delayed by an airline (due to missteps on their part, such as overbooking), for more than 2 hours (domestic) or 4 hours (international), you are entitled to financial compensation of up to 400% of the one-way fare, capped at $1,550.