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90

TIL about the China - Vietnam conflicts from 1979–1991

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1YZP TIL the Opposite of a ‘Vicious Cycle’ is called a 'Virtuous Cycle.’ It is used to describe When Positive events or changes cause more and more positive events in a cascading effect.
xVNdw TIL Clownfish are covered in a layer of mucus which acts as a protective shield from the harmful tentacles of anemones, giving them immunity to stinging tentacles
5YgaP TIL Submarine K-219, a nuclear submarine that sank in 1986 due to a missile silo leak. It sank in 18,000ft of water, and when located 2 years later, it's missile doors had been forced open and the nuclear missiles it carried were missing.
l7Z8B TIL that Hong Kong still uses bamboo for scaffolding on their tallest buildings.
QN7yE TIL the Geographic Center of the contiguous states of the U.S is about 2 miles northwest of Lebanon, Kansas. It was officially established by the U.S Geological Survey and is a point where a plane map of the 48 states would balance if it were of uniform thickness.