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TIL that after filling up a sheet of paper with text, people used to continue writing over the text at a right angle to save paper

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xVZVD TIL the streaking scene in Old School was filmed at night and every store was closed except a 24 hour gym. On the first take, several people in the gym shriek in horror as a naked Will Ferrell passed by them. In the ensuing takes no one was near the gym's windows.
e0VmE TIL All radio stations have a four-letter identification code. In a 1912 Conference, the United States was given the letters W, K, N, and A. ‘N’ and ‘A’ were given to military stations, Commercial Radio stations east of the Mississippi River used ‘W’, and west of the Mississippi ‘K’.
nWXPo TIL John Coltrane is recognised as a saint in the African Orthodox Church
8XVX TIL Ballooning is a behavior in which spiders use their silk to lift themselves up in the air, using the wind to move between locations. Some spiders can move for up to 25 days or longer while traveling high up into the upper atmosphere.
8epWX TIL Astronauts mixed concrete on the space station for the first time in 2019. Thanks to a lack of gravity-induced sedimentation, the cement's density was more uniform, making it stronger. But it also developed large internal air pockets, making it more porous.