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TIL The cornea is the only part of the body with no blood supply and it gets its oxygen directly from the air

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R7W0a TIL after his presidency, US Grant lost nearly every cent in a Ponzi scheme. Shortly after, he was diagnosed with terminal throat cancer. Pushing through the pain, and with the help of Mark Twain, Grant penned his autobiography in order to not leave his wife with no financial security.
wM9J TIL many Americans who need mental health services never get it because doing so could disqualify them from receiving life insurance
gnML TIL common duct tape isn’t designed to be used in actual ductwork.
OGyM4 TIL that polyamory is not prohibited in Judaism, but there was a temporary ban by Rabbenu Gershom in the 11th century which has since expired
YaYx TIL that the rocket car hoping to go 1000mph(1600km/h) uses a Formula 1 engine…as a fuel pump.