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TIL water makes different pouring sounds depending on its temperature.

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M7wEB TIL In 1968, the Polish Communist party declared thousands of Jews enemies of the state and forced them to leave Poland and the authorities organized mass demonstrations in which Jews who held prominent official positions were accused of everything that was wrong with the ailing Communist system.
4XwrR TIL The great conjunction is the time where Jupiter and Saturn meet. It coincides with winter solstice this year.
drj7 TIL that around 1778, fashionable Parisian women rarely went out in potentially stormy weather without lightning rods attached to their hats–an artist sketched this hat-lightening-rod contraption (looks like a long drooping chain hanging off the hat, rather than an upright antenna).
DoRJ TIL that the Soviets used to send astronauts up with a sawed-off shotgun to fight off bears when they returned to Earth in the Siberian Wilderness.
OG1R TIL the statistic that 90% of guns seized in Mexico originated in the US is a myth. Only 12% are actually traced back to the US.