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TIL That Gerorges Lemaitre, the man who first theorized an expanding universe and Big Bang Theory, was also a priest, soldier, theoretical physicist, mathematician, astronomer, and professor of physics at a university.

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1aYKV TIL in 1972, The Los Alamos National Laboratories patented a nuclear tunnel boring machine, claiming it could reach depths of 18+ miles. It uses molten lithium to melt through rock, leaving behind a tunnel with a glass-like finish.
KO4jJ TIL about the Canadian Rangers, a 5,000 strong wing of the Canadian military reserves made up mostly of First Nation personnel. They provide a military presence in the most remote Canadian regions, act as guides and scouts for the Army, and until 2018 were still issued WWII vintage rifles.
ADe9l TIL on Jan, 31, 2007, Boston PD mistook LED placards depicting 'The Moonites' for city wide bomb threat.
p8Blb TIL Jake ‘The Snake’ Roberts “can't stand snakes [and is] scared to death of the damn things”, but he still carried around a 100 pounds python and later on a king cobra with him because “there were enough zeros on [his] contract to make him forget about his fear [of snakes]”.
kJ78E TIL a 2018 study at Cambridge University found no genetic basis for why women tend to score higher than men on empathy tests. The researchers attributed it to 'Socialisation', where due to the way power has traditionally been distributed, it's mostly been up to women to understand men.