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TIL Major Harold Hering was discharged from the Air Force in late 1973 for asking the question “How can I know that an order I receive to launch my (nuclear) missiles came from a sane president?” under Richard Nixon.

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VMxbG TIL mathematician Milutin Milanković came up with what is now known as the Milanković theory of ice ages in part thanks to having a lot of free time. At the start of WW1 he was imprisoned in Budapest with the right to work for four years.
WkEmB Today I learned of Hurdy-Gurdy, a medieval stringed instrument that produces sound by a hand crank-turned, rosined wheel rubbing against the strings.
e01Yn TIL that deer and other primarily plant eating animals will eat small animals.
PoBZ TIL a study showed a shocking 29% increase in drug usage and a 34% increase in tobacco usage among students participating in DARE(Drug Abuse Resistance Education) in America
166bV TIL of Edward Archbold who, in 2012, won a pet python in an eating contest, but died shortly after by choking to death. The contest involved eating live cockroaches, and Archbold died after his airway was obstructed by "arthropod body parts."