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85

TIL Chris Pratt is the son-in-law of Arnold Schwarzenegger

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p8EXG TIL that firing squads would always have one gun shooting a blank. This ensures that no one in the group is able to know for sure which of them fired the fatal round, deterring some of the guilt.
GAZ7g TIL that before the 1872 photo series 'Horse In Motion' no one knew how horses move their legs in gallop as it is too fast to see with the naked eye. Before then they were frequently painted with their legs stretched out at both ends which is not in fact a part of any horse gait.
xVAgw TIL that the oldest sourdough starter is 122 years old
4XL56 TIL that since the 1960s in New York City, the price of a slice of pizza has been roughly the same as the price of a subway ride causing economists to create the term 'The Pizza Principle'
ep6EE TIL French physicists Leon Foucault and Louis Fizeau made the first successful photograph of the sun in 1845, five years after the first photograph of the Moon. In a major technological feat at the time, the solar photograph had an exposure time of 1/60th of a second