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TIL most color laser printers sold today create an invisible code that records where and when a page was printed.

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mEYx TIL in 2011, Jell-O monitored the amount of smiley faces and frown faces used on Twitter. Whenever the national average of smiley faces was less than 51%, Jell-O released coupons to those who recently tweeted frown faces.
rRvK0 TIL about Victor Vescovo, the first person to travel to the deepest points in every ocean on Earth. All of his dives used the Deep Sea Vehicle Limiting Factor, which he funded. Vescovo has also skied to both poles and climbed the highest mountains on every continent.
vd08 TIL we call the animal a cow because the herdsmen were English, but the meat beef because chefs were often French and beef is similar to the old French word for a cow. The same is true for pig/pork, and sheep/mutton.
W7Mb4 Today I learned that the bass line to Rush's YYZ actually spells out 'YYZ' in morse code.
VMdXQ TIL that it is illegal to perform any homosexual activities in lebanon. Article 534 of the Lebanese Penal Code prohibits having sexual relations that are "contradicting the laws of nature", which is punishable by up to a year in prison.