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TIL the Air Force learned by flying its C-17s in a large V formation similar to geese, they saved more than 10 percent of fuel — or millions of dollars

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WkpYL TIL in high school, Chance the Rapper got a 10-day suspension for smoking weed. So he went to the library, which had a recording studio for teens, and started making a rap album. This became the mixtape that launched his career, aptly called "#10day"
jN0jR TIL the fastest-advancing solar technology as of 2016 was the Perovskite solar cell. This type of solar cell, made of a hybrid organic-inorganic lead or tin halide-based material, has the potential to achieve higher efficiency and lower cost than any solar cell currently commercially available.
9YaeM TIL In response to the film "Apollo 18", NASA engineer John Schuessler clarified that moon landings ended with Apollo 17 because NASA simply did not have the time or funds to fit in more moon landings after 1972. He also sees no evidence of extraterrestrial life on the Moon
9Bb6 TIL the Super Bowl has required national anthem vocals to be pre-recorded since 1993 when Garth Brooks declined to pre-record and then refused to sing live until a dispute over debuting a music video during the game could be settled, resulting in a delayed kickoff.
BrnKb TIL that zippers are the leading cause of penile injuries