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TIL that there is a bug that evolved to have actual mechanical gears

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PNgg TIL that Homo floresiensis, an extinct 3.5 ft tall hominin that used stone tools, is believed to have lived alongside modern human as recently as 12,000 years ago.
j6pKN TIL how glitter is made
N7KV1 TIL that during the manhattan project, there was a legitimate concern that upon the detonation of an atomic bomb, the atmosphere would ignite and turn the earth into a mini star, killing everybody.
d8BGE TIL of José Sanjurjo a prominent figure in the Spanish civil war, who died when the biplane he rode which was overburdened with his luggage crashed. Before flight the pilot warned Sanjurjo of the danger to which he replied with, "I need to wear proper clothes as the new caudillo of Spain."
ZJja TIL that the Amish use air-powered tools for everything, including pneumatic blenders, sewing-machines and table-saws.