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TIL that living within 500 meters of an airport increases lead exposure risks in children

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6EwpZ TIL Research from Michigan State University is one of the first to identify common attributes of cybercrime networks, revealing how these groups function and work together to cause an estimated $445-600 billion of harm globally per year.
m1K7x TIL that deep inside caves in Romania, there’s an isolated ecosystem that’s been cut off from the outside world for over 5 million years, with unique life forms that rely on chemosynthesis, not photosynthesis.
XbwR TIL that talking drums were used in Africa for centuries to transmit messages over long distances by mimicking speech. When these were brought to America during the slave trade, they were banned because slaves used them to transmit messages their masters couldn’t decipher.
6ee7 TIL women in ancient Rome wore the sweat of Gladiators to improve their beauty and complexion
R7Ae8 TIL Bob Dylan wrote a tribute song for John Lennon in 2012, inspired after going on a public bus tour of Lennon's childhood home years earlier; none of the other tourists apparently recognized who he was