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TIL sildenafil (viagra) isn't used just for erections, but is also used to treat a serious condition Pulmonary Hypertension - high blood pressure in the lungs

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KY04a TIL that in 1973, the first mobile phone call was made by Motorola engineer Martin Cooper in New York City. Cooper made the call on a prototype mobile phone, nicknamed the "brick," to his rival at Bell Labs, announcing, "I'm ringing you just to see if my call sounds good at your end."
OGAd4 TIL: that there was a researched conspiracy theory that JFK was accidently killed by the Secret Service when the SS chase car behind was forced to break, causing the SS agent in the car to fumble forward and muzzle check the president, accidently killing him.
a8r69 TIL that Keith Hernandez testified before a federal grand jury in September 1985 that an estimated 40 percent of MLB players used cocaine. Even the Pittsburgh Pirates mascot, the Pirate Parrott, was implicated for buying cocaine.
yQkKw TIL Wi-Fi at 5GHz is faster, but has a shorter range. Wi-Fi at 2.4GHz covers a farther range, but is slower.
xVMYk TIL During the NYC blackout of 1977, the crew filming “Superman” outside the old Daily News building on 42nd Street lent their klieg lights to the editors so they could see the newspaper pages they were laying out.