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TIL that the Centennial Light is a lightbulb that has been on since 1901 and is referenced by conspiracy theorists as evidence that manufacturers purposely create faulty lightbulbs so that people have to buy more.

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via reddit.com

kJV8g TIL that spending 76 minutes a day outside reduces a child’s chance of becoming short-sighted by 50%.
YRlG TIL there are 3 astronomical bodies that can cast shadows on the surface of earth bright enough for humans to see: the sun, moon, and Venus. A Venutian Shadow.
YpL6G TIL Piggy banks are not actually named after pigs; they date back to the Middle Ages, when a type of clay – called ‘pygg’ – was used to make pots that could store money.
QNGbE TIL Curtis Armstrong who played Booger in Revenge of the Nerds, also voiced Snot in American Dad.
Yp01r TIL That of the 124 actors hired to play the Munchkins in “The Wizard of Oz”, only one is alive today