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TIL Lightning plays an important part in the Earths nitrogen cycle by breaking down nitrogen molecules in the air, so they can be dissolved by rain, and then carried down to Earth. Nitrogen is a very important element and needed for the production, growth, and decomposition of every living thing.

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wdpM TIL that the fifteen year old Steven Spielberg, dressed up ‘in a coat and tie’, sneaked onto the Universal Studios Lot and stuck his name up on the door of an abandoned office. He remained there without being caught for over three months, spending the time observing how the professionals made films.
MN8 TIL Ed, Edd n Eddy is Cartoon Network’s longest running series, running for almost 11 years.
vPv7x TIL that Hugo Gutmann, Hitler's commanding officer in WW1 who recommended him for the Iron Cross, was Jewish. He was later granted special exemption from anti-Jewish laws and permitted to emigrate to the US.
788JL TIL it was theorized through the 19th century that the Arctic Ocean got warmer as it got closer to the North Pole. The "Open Polar Sea" could provide trade routes through an equator-like temperate climate to Asia, Europe, and the Americas. It was disproven by dozens of failed expeditions.
J1vN1 TIL the fictional languages in the Game of Thrones series are fully complete languages. Of all the actors that had to speak one or more of them, the person that portrayed the Grey Worm character was considered the best/most talented. He was skilled enough to speak like a natural native speaker.