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TIL that Sony patented Smart Contact Lenses that can record what you see

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VMpd0 TIL Leonhard Euler was the most prolific mathematician of all time. He wrote more than 500 books and papers during his lifetime — about 800 pages per year — with 400 further publications appearing posthumously. His collected works and correspondence are still not completely published
VZvm TIL “Suicide” doors, which are hinged at the rear rather than at the front, were popular with mobsters during the 1930s. Supposedly, this was because the design of the doors made it significantly easier to push passengers out of moving vehicles.
WkB4d TIL about Black July. On 24 July 1983, anti-Tamil rioting started in the capital Colombo in Sri lanka and spread to other parts of the country. Over 7 days, Sinhalese mobs attacked, burned, looted, and killed thousands of Tamil targets. it is generally seen as the start of the Sri Lankan Civil War.
9dMD TIL Penelope Spheeris, the director of The Decline of Western Civilization and Wayne’s World, was given the opportunity to direct This is Spinal Tap, but turned it down, thinking it wasn’t possible to make fun of heavy metal.
4XBl6 TIL that when considering what to name Idaho, a man named George M. Willing suggested Idaho claiming it was an indigenous word meaning "Gem of the Mountains". The name stuck. Afterwards it came out that it wasn't an indigenous word and Willing made it up.