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TIL that Nikola Tesla supported the forced sterilization of those he considered “undesirable”- this included more than criminals and the mentally ill.

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d8v1j TIL the Army’s 4th infantry division is called the “Ivy Division”, because the Roman numeral for 4 is IV
DRP TIL Every time you enter a captcha, you’re helping digitize a book
VBLyZ TIL Because it is so close to the Sun, Mercury is only observable in the early morning just before sunrise, or at dusk. Ancient Greek astronomers once believed Mercury was actually two separate objects
M7j6b TIL Roger Babson founded the "Gravity Research Foundation" in 1948 an effort to fight gravity, after the childhood drowning of his sister who couldn't overcome gravity. Post-death it became a foundation for understanding, where notable researchers including Stephen Hawking won their essay prizes.
a8Gk0 TIL that Jason Padgett, once a furniture salesman, became a mathematical savant after a brain injury in 2002. Following an assault, he began perceiving complex geometric patterns and fractals, a rare condition called acquired savant syndrome, which led him to create intricate math-based art.