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TIL Diamonds are so dense they slow light to half their normal speed which is what helps give diamonds their sparkle.

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4k4bw TIL James Salisbury, inventor of the Salisbury steak, was a physician during the American Civil War. He was convinced that vegetables were responsible for heart disease and mental illness, and that Salisbury steak should be eaten three times a day for bodily defense and weight loss.
L7G0 TIL a 57yo Japanese man has been learning to SCUBA dive specifically so he can look for his wife’s remains after she was presumably swept away during the 2011 tsunami. He says her last email to him was “… I want to go home”, and he is determined to make that happen.
PYgGg TIL in Avatar: The Last Airbender, the bending styles for each element were influenced by a different Chinese martial art. For example, earthbenders use movements inspired by Hung Gar––chosen for its firmly rooted stances and powerful strikes as a representation of the solidity of earth.
kJ0Y5 TIL about Pandanus Language which is only ever used by some New Guinea peoples when collecting Pandanus nuts
yV5yp TIL that Peter Dinklage’s brother Jonathan is the lead violinist and concertmaster of the Hamilton Broadway orchestra.