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TIL: Laugh tracks were the invention of a sound engineer named Charles Douglass, whose Laff Box machine helped him corner the market during the golden age of TV.

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4XRl5 TIL 71% of U.S. youth would not currently qualify for military service due to their heath, physical appearance, or educational background.
eRO6 TIL that a British company made a laptop with a graphical user interface, a 60 hour battery life, SSD storage, and a touchpad. In 1989.
g4D9 TIL that Michelin Stars, awarded to fine restaurants, are indeed awarded by Michelin Tire Co. They started in 1900 to promote restaurants worth traveling to… and therefore increasing tire sales.
XamQ TIL in 1994, Andres Escobar, a colombian soccer player , was killed for scoring a goal by mistake to his own team in the football World Cup of that year. The murder was only ten days after the mistake.
jNLRR TIL that ergonomists could show a relationship between the ergonomic characteristics of the educational furniture and the number of cognitive errors based on Stroop test. They found that an error percentage reduction using separated chair and desk against arm table student chair.