› added 4 years ago

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TIL the NHTSA's crash tests haven't been updated since the 70's, and no crash safety tests being performed today test with women in mind. They all test for the average male, and women have a 47% higher rate of serious injury in frontal collisions than men.

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N7kYE TIL of the Köhler Effect: when one less-capable person works harder to match more-capable people in the same task. Köhler Effect is strongest when a less-able man is paired with a more-capable woman, (thought to be because it's more embarrassing to men to be outperformed by a woman than a man).
L4Om TIL that there is a scientific measurement for the ‘risk of death’ of any action: the micromort. If an activity is rated as one micromort, you would have a one in a million chance of dying while doing it. Running a marathon is ~7 micromorts, sky diving 10, and climbing Mount Everest 40,000!
jNynM TIL the strawberry on the tomato pin cushion is filled with emery powder, an abrasive, to sharpen pins.
Zp0Lo TIL that the B-2 bomber includes an upward facing light sensor, which alerts the pilot to increase or reduce altitude to match the underside paint job to the changing illuminance of the sky to also make it visually stealthy.
KRj4 TIL Henry Ford didn’t decide to pay his workers $5 per day so they could afford his cars, but to combat massive turnover: In 1913, he hired 52,000 workers and kept 14,000