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TIL The siren squelch at the beginning of the Emergency Broadcast System is actually a digital code that specifies who issued the alert, the type of threat, where it is affecting, and how long it is in place.

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lpoK TIL North Korea’s highest defense minister was executed by Anti Aircraft fire for falling asleep during an event attended by kim jong un
e0Jeg TIL the theory of dinosaurs' mass extinction by a meteorite was proposed somewhat recently, In 1980
kOaa1 TIL Steve Jobs once argued that’s it completely unnatural to touch the screen on a PC. He reportedly said people's arms would fatigue and called the idea “ergonomically horrible.”
kORYe TIL in 1963 Robert Kearns invented the intermittent windshield wiper, presented it to Ford Motor Co. and was hired. Ford fired him and took his technology. He sued Ford for patent infringement and after 12 yrs. of litigation, at times without a lawyer, the court awarded Kearns 10.3 M dollars.
dXrZ TIL slugs evolved from snails, and exposing baby snails to platinum turns them into slugs