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TIL that a glass ball will bounce higher than a rubber ball!

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XERvX TIL the expression “How do you like them apples” supposedly originated during the first World War, when the Allies’ anti-tank grenade was colloquially called a “toffee apple” because of its bulb-like appearance on a stick. The phrase was a taunt against the enemy.
m1jGx TIL About 1 in 5 people living in New Hampshire tie their roots to Ireland.
Ryx1 TIL: Billie Joe Armstrong, of the band Greenday, is the great nephew of Neil Armstrong, of the Moon
RaD8 TIL There’s a thing called “Rubber duck debugging” in which a programmer explains the code to an inanimate object in hopes of finding the bug
jNjeN TIL Back to the Future filming at night would get interrupted because the DeLoreans door began slowly closing on its own. It was found that cold temps at night cause the gas-filled strut in the hinge mechanism to contact. To keep the doors up, special effects would keep the strut warm between shots.