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TIL about "call of the void" The feeling — which tends to be brief, entirely out of character and often involves thoughts of leaping from a high place or driving headfirst into an oncoming vehicle

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8eKlG TIL that life expectancy at birth probably averaged only about 10 years for most of human history
9w7vX TIL to keep up with Robin Williams' improvisation on 'Mrs. Doubtfire', director Chris Columbus had to shoot the entire movie with extra cameras to get the other actors' reactions. Two million feet of film were used. Columbus has 972 boxes full of outtakes.
X008k TIL David Lunt revolutionized amateur astronomy by introducing the first hydrogen-alpha solar telescopes for consumers in the late 1990s. Through his telescopes, the ruby-red Sun looks alive, with prominences jutting from the limb, and bright flares erupting around sunspots
dV6r TIL the most expensive material on the planet is antimatter worth $62.5 trillion per gram
b9ra4 TIL the strongest correlation with high IQ and personality traits is openness. It is thought individuals with a high level of openness enjoy the experience of learning and prefer an intellectually stimulating environment.