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Today I learned all Space Shuttle flights were outfitted with explosives that an Air Force officer would detonate if the Shuttle veered off course & endangered a populated area.

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wLPA1 TIL the origin of the phrase “steal my thunder” is an 18th century playwright who created a machine that recreated thunder noises for a cancelled play. When he attended a later play in the same theatre and heard it used, he cried "Damn them! They will not let my play run, but they steal my thunder."
awy1L TIL In 1974, U.S. Senator William Scott (R-Va) was named the Dumbest Member of Congress by a small fringe publication. He called a press conference to deny it, which gave the accusation nationwide circulation.
X0ZVr TIL about "Giant Mine" in NWT, Canada a mine that contains enough arsenic to kill every person on earth several times over. The arsenic has no half life so it will be just as deadly in 1,000,000 years. The government of Canada is currently trying to stop it from leaking into the environment.
DQKbe TIL taking drugs for heartburn can cause a person to develop allergies
B9WD TIL it was widely believed in the 17th and 18th centuries that man was powered by explosions, such that 23,000 times a day, a human breathed in air containing nitrous particles that, combined with the fire of the heart or the sparks of nerves, created the small explosions that moved the body.