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TIL authors of the NUCLEAR WINTER hypothesis, Carl Sagan and Richard P. Turco, conceded to significantly scale back their theory after much criticism from specialized experts, including exaggerated numbers of dust and ash which wouldn't be the case from airburst nukes.

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epwJD TIL Tim Sweeney, Epic Games CEO originally wrote 90% of the code for the first Unreal Game Engine and has since used his fortune to protect more than 50,000 acres of forests for conservation purposes
nWx0Y TIL about the “Old Man of the Lake,” a 30-foot tall, 450 year old tree stump, most likely a hemlock, that has been bobbing vertically in Oregon's Crater Lake since at least 1896. Moving freely, it can be virtually anywhere on the lake, so boat captains commonly communicate its position for safety.
vPVMj TIL turn signal neglect is twice as dangerous as distracted driving
9YJy6 TIL that the Sperm Whale have the largest brain of any creature known to have lived on Earth
ADyK7 TIL in preparation for their proposed invasion of Britain, the Nazis produced a handbook identifying dangerous anti-Nazi institutions in Britain, including Masonic lodges, the Church of England, and the Boy Scouts