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TIL in 1952, Navy LT Jimmy Carter led a team of nuclear scientists in disassembling a Canadian nuclear reactor undergoing meltdown. Carter, alongside others, personally lowered himself into the reactor to disassemble it by hand, exposing himself to one thousand times the level of safe radiation.

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4kpO6 TIL about Claudette Colvin. Sheis an American pioneer of the 1950s civil rights movement and retired nurse aide. On March 2, 1955, she was arrested at the age of 15 in Montgomery, Alabama, for refusing to give up her seat to a white woman.
4kRZa TIL Ahmed Gabr set the deepest scuba dive of all time in 2014, reaching a depth of 1,090 feet. He spent almost a decade preparing for the dive, which took only 15 minutes to descend but over 13 hours to ascend back to the surface.
4kL9g TIL about Alice in wonderland syndrome. A neurological condition in which one’s perception of their body image, time, or space is distorted. AIWS may also cause hallucinations, sensory distortion, and an altered sense of velocity.
VB4WD TIL in 1345 Ciuto Brandini, a lowly worker in the Florentine textile industry attempted to organise his colleagues into a union. He held worker's assemblies and collected tithes to be used for strike funds. After his arrest on sedition charges, his companions went on strike demanding his release
LQ7Pm TIL about Bowie Bonds, securities backed by David Bowie's pre-1990 albums. They paid 7.9% interest with a 10-year average life, beating the 6.37% return on 10-year Treasuries at the time. But with the rise of music piracy, Moody's downgraded them from A3 to Baa3, just above junk status.