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TIL that Hershey’s kisses got their name due to the smooching sound the machine made while extruding the chocolates into a conveyor belt

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JYgv4 TIL Australian physician Barry Marshall was awarded a Nobel prize for infecting himself with bacterium Helicobacter pylori to show that it caused stomach ulcers, after he was ridiculed and declined funding for his hypothesis that bacteria could survive in acidic conditions
jRNn TIL that Coca-cola was so widely used as a spermicidal douche - primarily in 1950s and 60s America - that multiple scientific studies have been undertaken to disprove its contraceptive ability.
eLMD TIL Syd Barrett, original member of Pink Floyd, experienced extreme synesthesia and would give his band musical directions such as, “Perhaps we could make the middle darker and maybe the end a bit middle afternoonish. At the moment it’s too windy and icy.”
9YwdQ TIL in 1963 Pennsylvania enacted its first "mandatory reporter" law, by 1967 all 50 states had similar laws, and the 1974 Federal Child Abuse Prevention and Treatment Act (CAPTA) created Federal expectations for mandatory reporters.
7nEp TIL conservatives and liberals can be identified with 70% accuracy based on brain scans