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TIL that a typical session of human sexytime consists of about 100–500 thrusts

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PYOWZ TIL that a practical joker once set 70 old tires on fire inside Mount Edgecumbe, a dormant volcano in Alaska. Local residents thought the volcano was erupting until they saw "APRIL FOOL" spray-painted in 50-foot letters around the rim of the crater. He had been planning the prank for four years.
VMGBB TIL Despite being an atheist, the famed mathematician Paul Erdős often referred to a celestial book "The Book" that contains every one of God’s perfect mathematical proofs. Two mathematicians then collected these proofs and published them in 1998, with new proofs being added over the last 2 decades.
WRpL TIL the pressurization of an airplane cabin alters the function of taste buds, causing a decrease of up to 30% in the ability to taste saltiness or sweetness. This is one of the reasons so many people dislike airline food.
QG1X TIL of the Silphium plant. Used by the ancient Romans to induce abortions it was over-harvested to extinction in the 2nd or 3rd century BCE.
Br5ND TIL about Wrong Way Corrigan. In 1938 he was denied permission to make a solo transatlantic flight because his plane was unsafe, but given the okay to fly to California. He took off, made a U-turn, and disappeared into the clouds. 28 hours later he landed in Ireland, claiming his compass had broken.