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TIL that free divers' heart rates can drop as low as 11 beats per minute(as low as that of diving seals, whales and dolphins), in order to preserve blood-oxygen levels

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4kg4o TIL that Firestar, the superhero that appeared in 'Spider-Man and His Amazing Friends' as Peter Parker's roommate, became infertile and got cancer from her powers.
9wY5r TIL Helen Keller, a famous American woman known for overcoming deafness and blindness to lead a successful life, was a Socialist political activist, and lead a commission in the IWW for blind and disabled people.
J17DB TIL less time separates us from T-Rex than T-Rex from Stegosaurus
XE8Bj TIL that Michael Jackson wanted to play the role of Jar Jar Binks in 'Star Wars’ before finding out he would be a CGI character.
64vZ TIL Theodore Kaczynski, also known as the Unabomber, was among twenty-two Harvard students subjected to “horrific experiments” conducted as part of the secret CIA project MKUltra, the same project that produced LSD and whose goal was mind control.