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TIL One researcher estimates that with current technology it would take 10,000 automated microscopes thirty years to map the connections between every neuron in a human brain, and 100 million terabytes of disk space to store the data.

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8eEDb TIL that Charles Darwin often gave his old papers to his children for them to doodle on. Thus, much of what survives of his original Origin of Species manuscript represents the best of his children's writing and drawings, rather than the best of his work.
8e0OG TIL that the Auschwitz "Arbeit macht frei" sign features an inverted "B" - Jan Liwacz, Konzentrationslager prisoner who made the sign, inverted the letter in defiance of Nazi oppression. Jan Liwacz survived Auschwitz and Mauthausen and died in 1980 a respected and well known artisan smith.
9Rx6 TIL NASA accidentally auctioned off for just $995 a bag that was used by Apollo 11 astronauts to collect the first lunar sample. When the buyer sent the bag to NASA for verification, the space agency realized its mistake and refused to return it.
ne1Nr TIL that after the 1980 Irpina Earthquake hit Southern Italy, the corruption was so bad that only 1/4 of the 40 billion dollar rebuilding fund got spent on relief. The rest got distributed among politicians and the mafia.
yVGn8 TIL the 1976 film "Bound for Glory" is the first film to make use of the Steadicam