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TIL that lung cancer risk after quitting smoking remains elevated for decades and stays more than threefold higher than never smokers after 25 years of quitting smoking.

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KBm4 TIL the use of Mustard Gas in WW1 lead to the development of Mustine, the earliest chemotherapy drug
Z88dY TIL there is no law against public photography in Canada; no one can ever be arrested for the simple act of making a picture or film, unless other laws are being broken in the process. Police on duty also have no reasonable expectation of privacy
yVLde TIL before becoming the guitarist for the band Tool, Adam Jones worked on movies like Jurassic Park, Terminator 2, and more.
oe88 TIL that the trajectory of the first American manned spaceflight was calculated by an African-American woman. She was so good at computations that she was asked to check the work of the computers when they were first used by NASA to calculate John Glenn’s flight path.
EgEA0 TIL while chemical weapons were produced by the Nazis, they were not widely deployed. Other than fear of retaliation, factors which influenced this decision may have been that Adolf Hitler was gassed by British troops in 1918, and that the Nazis never developed effective gas masks for horses