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TIL the floating substance inside of a lava lamp is primarily wax

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dDxb8 TIL A 2007 independent panel found that alcohol is "freely used in crew quarters," where astronauts are quarantined at the Kennedy Space Center in the three days before launch. NASA policy prohibits any drinking in the 12 hours before an astronaut flies a training jet
oQDo TIL the founder and the original leader of the Rolling Stones got kicked out of the band and then died less than a month later
XKMj TIL of Washoe (chimpanzee), the first non-human to use Amercian Sign Language. When Washoe’s caretaker returned to work after a miscarriage, Washoe ignored her. The caretaker then signed “MY BABY DIED”, to which Washoe replied “CRY”, simulating a tear running down the caretaker’s face.
M7AVV TIL airports hire crews of "birdmen" that use methods like horns, sirens, lasers, and pyrotechnics to ward off large groups of birds. They even intentionally remove horizontal branches from nearby trees to discourage large migrations from settling near the runways.
oB6M7 TIL of buttock mail, a tax historically levied in Scotland as a punishment for sex outside of marriage