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515

TIL: Karl Marx had terrible personal hygeine and was perpetually covered in sores.

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xpmB TIL a polio victim was kept alive in a metal tube for nearly 60 years only to die when a power outage shut her iron lung down.
VMAap TIL the Himba tribe in Namibia has no word for the color blue. In research, when shown 11 green squares and 1 blue, they couldn't pick out which was different. The research suggests that without a way of identifying the color as different, it's harder for our eyes to notice it.
EgoBW TIL Alex Garland (Ex Machina, Annihilation, Civil War, 28 days later) first claim to fame was a novel that got made into a film starring a young Leonardo DiCaprio.
neZ5r TIL Amtrak trains running at 2am on the Sunday in November when daylight savings 'falls back" must come to a full stop for one hour. This allows clocks to catch up to the train schedule.
R5DWa TIL Lettvin et al. remarked that a frog "will starve to death surrounded by food if it is not moving"; it won't see the [stationary] food due to a general lack of head/eye movements, which lead to visual fading