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TIL that physicist Richard Feynman encouraged his sister Joan to study the universe, despite their mother's belief that women were incapable of fully understanding science. Joan went on to become an astrophysicist.

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JYyjk TIL: Quaker Oats fed radioactive milk and oatmeal to unsuspecting special needs kids under the guise of a science club in order to find out how beneficial certain nutrients were in their oats.
wVD7 TIL when Steve Jobs accused Bill Gates of stealing from Apple, Gates said, “Well, Steve, I think there’s more than one way of looking at it. I think it’s more like we both had this rich neighbor named Xerox and I broke into his house to steal the TV set and found out that you had already stolen it.”
GYkZ1 TIL that the longest ship ever built was the Seawise Giant, it was 1,500 foot long, it was longer than the Empire State building is high. It had a 36 tonne anchor and it weighed 564,000 tonnes. It doesn't exist anymore and was sold for scrap to a Indian breaking yard.
nQEo TIL in Norse mythology, during the events of Ragnörak, there is a ship made entirely of the untrimmed nails of the dead that will carry hordes to do battle with the Gods. It’s important to keep those nails trimmed so you don’t contribute to building it.
Ok87 TIL Swiss company Credentis developed a peptide that repairs & strengthens teeth, removing the need for drilling and fillings. The final product is called Curodont, and is currently available in Europe.