› added 7 years ago

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TIL Mummies are sometimes used in medicine to calibrate CAT scan machines

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N7wgE TIL baby Sanddollars (like a sea urchin) eat the heaviest bits of sand they can find, to weigh them down so they don't get swept away, like a teeny tiny weight belt
695yJ TIL that there was a radioactive toothpaste on the market in Germany prior to WWII.
GYZ44 TIL that historically, black dyes were the hardest to make. Brilliant colours or heavily-decorated clothes were legally restricted to the nobility, so successful merchants would show off their wealth by wearing all-black clothes
Qymp TIL that at Appalachian law school there was a shooting that took place in 2002 where the gunman was cornered by two students who had guns at the time.
0NN1 TIL that mysteriously dark regions on Mars are made of glass