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TIL the 1979 Daytona 500 ended in a fight on national TV

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VBVLp TIL that a polar bear liver has enough vitamin A to kill 52 adults! Ito cells are cells in the liver that store Vitamin A (Lipid soluble). High Vitamin A production in marine algae at the bottom of the food chain results in polar bear livers with enough Vitamin A to last a human 143 years!
M775K TIL about the Qianli chuan ('thousand league boat'), a human powered paddle wheel boat invented in the late 5th century AD during the Southern Qi Dynasty. The boats were able to cruise hundreds of kilometers per day with by humans peddling them. They were used as war ships and tug boats.
DQeQJ TIL 80% of the US population lives in the eastern half of the continental US
PYpxO TIL that in 2012, after the Kazakhstan's shooting team won a medal at the championships in Kuwait, instead of the country's national anthem being played, the joke national anthem from the Borat movie was played.
9a9G TIL that chicken feathers can be processed into a biodegradable plastic-like material and are used in products as varied as dishes, circuit boards, beauty products, and boat construction.