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TIL that female ultrarunners are faster than male ultrarunners at distances of over 195 miles. One possible reason for this is that, when compared to males, female ultrarunners have muscles that are more resistant to fatigue and are able to burn their storage of fat for energy more efficiently.

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69PZY TIL in the mid-1950s, Hiller aircraft constructed flying platforms for an army-navy program. The pilot simply leaned in the desired direction in the platform would follow.
p8yBp TIL that Georgia Tann kidnapped up to 5000 babies whilst working as a social worker and sold them to the black market over 30 years. Her close friends in high places, such as a tycoon and a judge were able to remove missing persons reports and threaten people with legal action if they pursued.
xVw7w TIL that Kaiser Wilhelm II's withered arm was treated with a freshly slaughtered hare tied to his arm and electrotherapies in an attempt to 'fix' the arm
kJJ0g TIL Only 8 percent of tariffs on aluminum for cans went to the government. The rest was pocketed by the aluminum manufacturers.
69vrZ TIL the patrol boats used by the United States Navy during the Vietnam War were powered by jets manufactured by Jacuzzi