› added 9 years ago

803

TIL that Marie Curie’s notes are still radioactive and researchers must wear protective clothing and sign a disclaimer before viewing them

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woYoJ TIL The last time it took more than one ballot to elect the Speaker of the House was 100yrs ago in 1923.
Lk8kV TIL: The Black Death was responsible for the beginning of the end of European Feudalism/Manoralism. As there were fewer workers, their lords were forced to pay higher wages. With higher wages, there were fewer restrictions on travel. Eventually, this would lead to a trade class/middle class.
KOm0G TIL that the psychology of color plays a massive role in the soft drink industry’s beverage color selection
M7o8 TIL That 100 million years ago, the center of a volcano in the Sahara desert collapsed, leaving a circular structure visible from space.
NXoNJ TIL that women grow 6-8 million cells for potential eggs while in the womb, then they start losing them at an astonishing rate. At puberty, only 3-400k remain. At menopause they're all gone.