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TIL----FISH CANNONS EXIST---- Whooshh Innovations' "Salmon Cannon" Gives Fish A Boost Over Dams

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Z8MVo TIL that poisonous snakes actually exist.
GARaj TIL about Elizebeth Smith Friedman, a pioneering female codebreaker who decrypted mob codes during prohibition and busted up Nazi spy rings in South America, yet was robbed of her due credit by J. Edgar Hoover and died in obscurity in 1980, never revealing her immense wartime service.
xPJk TIL Same-sex sexual activity is legal in Singapore for females only
698wX TIL that China was the only nation at the Paris Peace Conference to not sign the Treaty of Versailles.
1BAd TIL there is a secret room inside Mt. Rushmore that contains porcelain enamel panels with text from the Declaration of Independence, the Constitution, and the Bill of Rights sealed in a teakwood box, placed in a titanium vault, and sealed shut under the weight of a 1,200 pound granite capstone.