› added 10 years ago

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TIL Viagra, Cialis, or Levitra can cause a person to see everything tinted with blue. This is referred to as Cyanopsia or blue vision.

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R7Kj9 TIL that the words to the Algerian National Anthem were written by the activist Zakaria with his own blood after being tortured by the French colonialists in prison
oBrrL TIL That people born blind use the same facial expressions as sighted people when expressing emotions, meaning that our facial expressions are innate and not learned behavior.
dD6L9 TIL the National Registry of Exonerations lists 2,939 convicted defendants who were exonerated through DNA and non-DNA evidence from January, 1989 through January, 2022 with more than 25,600 years imprisoned.
M7x7V TIL the first American stealth fighter was inspired by a paper published by a Soviet scientist on radar reflection deemed to have "no significant military or economic value."
8elO8 TIL Doug Henning, the New Age illusionist from the 70s, was diagnosed with liver cancer. Despite graduating with honors with a degree in science and psychology, he believed that meditation and a diet of nuts and berries would save him. He was dead within 6 months, at the age of 52.