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TIL the Guinness World Record for most birthdays in one day belongs to a Pakistani family, with every member having been born on August 1st; including the mother and father.

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ey0b TIL an Air Canada flight in 1983 ran out of fuel mid-flight, but the crew managed to glide the 767 to nearby airport. The plane turned out to have only been filled with half the amount of fuel it needed due to a miscalculation because Canada was in the process of converting to the metric system.
wE1P TIL that the company that makes Atrazine, a vastly used herbicide that has been linked to breast cancer; also manufacturers the drug that is a treatment for breast cancer.
N7VlQ TIL Fresh snow absorbs sound, lowering ambient noise over a landscape because the trapped air between snowflakes attenuates vibration. That´s why it gets so quite when it snows.
j6R5v TIL Challenger 2 tanks require two sets of tools, as the hull is built using imperial measurements and the turret is built to metric measurements.
OoOae TIL that a USSR physicist published his equations for solving reflected electromagnetic waves from surfaces, as the Soviet authorities considered them insignificant for military purposes. His work was found by Lockheed in the 1970s, leading to a breakthrough in developing their stealth plane F-117.