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TIL Stethoscope was invented when a 'gentleman' French doctor got too embarrassed to check the heartbeat of a female patient by tapping at her chest. So, he rolled up a sheet of paper to create a tube, and then placed it on her chest. The method worked, and stethoscope was invented.

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9wd17 TIL an advertising agency in New Zealand installed branded plates on benches so people wearing shorts would inadvertently advertise by leaving an impression of an ad on the back of their thigh.
E10pp TIL that there is a group of sea wolves on Vancouver Island that can swim for miles and 90% of their diet is seafood. They primarily eat salmon but also forage on barnacles, lams, herring eggs, seals, and river otters.
jl0p TIL The first time ‘mammoth’ was used as an adjective was in reference to a 1,234 pound wheel of cheese which was presented to US President Thomas Jefferson
v18ZB TIL that along with the well known electronic surveillance state, there is also a deeply disturbing DNA surveillance state.
awZjJ TIL during the chaos caused by the 1923 Great Kanto earthquake, the Imperial Japanese Army murdered an estimated 6,000 ethnic Koreans and Japanese socialists. The massacre is alternatively denied and celebrated by Japanese right-wing groups today.