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TIL Nikolai Tesla patented a one-way-valve with no moving parts in 1920 (Patent US1329559)

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VB0XD TIL that three years after winning gold at the 2004 Olympics, wrestler Rulon Gardner and two friends’ plane crashed into Lake Powell Utah. The three men swam an hour to the shore through 44F (7C) degree water to the shore and waited all night without shelter for rescue. All three men survived.
AZwa TIL That McDonald’s daily customer traffic is larger than the population of Great Britain.
O8a4 TIL Tony Stark (Iron Man) has made over 50 different Iron Man suits, including a “Thorbuster” and a “Hulkbuster” made specifically for battle against Thor and the Hulk.
MyWB TIL that rust can easily be removed from chrome with aluminum foil and water and works because of metal hardness levels.
pNm8 TIL Army researchers are investigating ways to incorporate 3-D printing technology into producing food for Soldiers.