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TIL the energy released by turning just one kilogram of hydrogen into helium is the same as burning 20,000 metric tons of coal. The sun is doing this constantly through nuclear fusion.

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JYjpB TIL that in 1825 painter Samuel Morse received a letter which read that his wife was sick. The day after that a new one said that she was dead. When 2 days later he went to his wife, he discovered that she was already buried. Pissed off for the slowness of communications, he invented the Morse code.
lZ4K TIL English farmer Angus Wielkopolski discovered that goats produce more milk listening to Mariah Carrey’s all I want for Christmas tune than any other song. They found that the goats produced up to half a pint more when Carey’s famous Christmas track was played.
b1kj TIL that President Andrew Jackson’s pet parrot started yelling obscenities during the former president’s own funeral and had to be removed.
pYrZ TIL that in many states, late fees on rent are illegal
okvr TIL that in 2009, computer scientists created a system that composes a realistic picture from a simple freehand sketch, pulling photos from the internet: Sketch2Photo