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TIL: India has a payment system that is fast, small shopkeepers to large corporations use it and is replacing cash, called the UPI.

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b9kg0 TIL at high enough speeds an aircraft can use it's own shockwaves to generate a considerable amount of additional lift. This phenomenon is called compression lift and has only been demonstrated to two aircraft models.
oROd7 TIL that the Great Wall of China was not built as a single continuous wall, but rather as a series of walls and fortifications constructed by various dynasties over centuries. The most well-known sections were built during the Ming dynasty (1368–1644).
aoxL TIL An Indian flight attendant saved American lives on a hijacked Pan Am flight by hiding their passports under seat cushions. She died while protecting children from gunfire
R7bB9 TIL an Australian court ruled that "cunt" is not an offensive word
oBgRR TIL about the Bigfin Squid. The arms and tentacles of this beast are believed to be between 4-8 m (13-26 ft) long. These appendages are held perpendicular to the body, creating "elbows". These squids drag their long arms across ocean floor and pick up anything they catch to eat.