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TIL a concert grand piano has to resist 30 tons of pressure being put on it by the tensioned piano wires

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Z8nyo TIL of the Tricuspid Valve Annuloplasty Ring which prevents children with faulty organs or heart problems from needing more than one surgery as they get older.
bZg7 TIL that tobacco companies pay for most, if not all, of the anti-tobacco commercials you see.
ADNkg TIL Bill Murray attended the musical version of Groundhog Day twice in a row.
ADXal TIL Herding dogs, like border collies and Australian cattle dogs, are very intelligent. They also have very strong working instincts, which may compel them to “work” at home by herding family members or other animals. This behavior may include chasing, nipping and barking.
x6VN0 TIL the first ever transatlantic radio signal was received here in Canada, morse code for the letter “s”