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TIL Medical Errors are the third leading cause of death in the United States after heart disease and cancer !

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via reddit.com

R5VM6 TIL Ted Bundy scored 39/40 on the Hare Psychopathy Checklist which is among the highest recorded scores of any serial killer
4x9a TIL that Vietnam War protesters used tethered helium balloons to ward off government helicopters that were sent to disrupt their outdoor concert.
X0DLr TIL about the Higgs boson, also known as 'the God particle', an elementary particle which is responsible for granting other particles their mass. Its existence was first proposed in the 1960's, but evidence for the particle would only be found in 2012, by researchers at the Large Hadron Collider.
wLDoY TIL Gambler's fallacy, the erroneous belief that if a particular event occurs more frequently than normal during the past it is less likely to happen in the future. In 1913, in a game of roulette, the ball fell in black 26 times in a row, the probability of the sequence is 1 in 66.6 million.
R7aQl TIL the United States Air Force F-22A Raptor stealth fighter jet "has a radar cross-section smaller than a bumblebee, making it nearly undetectable." And the Raptor's radar "changes frequencies over 1,000 times per second to deter detection by enemy forces."