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TIL about the Bannister Effect: When a barrier previously thought to be unachievable is broken, a mental shift happens enabling many others to break past it (named after the man who broke the 4 minute mile)

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aw6O0 TIL Harry Glicken's was devastated when his mentor David Johnson died during the eruption of Mt St Helens in 1980. Glicken met the same fate 11 year's later during the eruption of Mt Unzen in Japan. Glicken and Johnson are the only American volcanologists to have died in volcanic eruptions.
OoGNe TIL of Lee Lorch a mathematician blacklisted in the 50s by most US universities for his civil rights activism. Before his death in 2014 he was asked if he would have done anything any differently. "More and better of the same," he replied.
16ldd TIL that in 4 billion years, when the Milky Way galaxy collides with the Andromeda Galaxy, the distance between the stars will be so vast that none of the 1.3 trillion stars are expected to collide.
lo64K TIL While filming "2001: A Space Odyssey", the director Stanley Kubrick was so worried that an alien encounter was imminent that he took out an insurance policy incase aliens were discovered before his movie was released which he believed would have ruined his storyline.
YMWW TIL George Foreman has made more money selling his grills than for his boxing career in which he was a 2-time heavyweight champion