› added 11 years ago

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TIL that CAPTCHA is an acronym for “Completely Automated Public Turing test to tell Computers and Humans Apart”

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78plX TIL that the US is home to a major supervolcano at Yellowstone Caldera. If it erupts again it won't wipe out humanity but could severely alter weather and climate patterns to the point where it caused a new ice age.
lOr7 TIL that a crevice and a crevasse are not the same thing. A crevice is in rock and a crevasse is in ice.
NGWP TIL that what you see can change what you hear (aka McGurk Effect)
x6yV7 TIL that a rocket engine startup company's plan for using mercury propellant to launch satellites ended up getting the UN global ban
Lk74V TIL Dorothy Stang, an American nun who dedicated her life to preserving the Amazon rainforest in Brazil. She helped the poor by teaching them how to harvest products from the forest and sought to protect peasants from gangs working for farmers. She was murdered by criminals hired by a rancher.