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TIL the Nazi Headquarters “The Brown House” from 1930 on was across the street from an apostolic nunciature (a top level diplomatic mission of the Holy See / Pope / Vatican)

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b9Wk4 TIL about the Kearny fallout meter, designed such that someone with a normal mechanical ability would be able to construct it before or during a nuclear attack, using common household items
X0pDD TIL The "Pinch" in Ocean's 11 is real, not theoretical device called a "Explosively pumped flux compression generator"
8eyLV Today I learned that during the American Civil War, approximately 60,000 amputations were performed, accounting for about three-quarters of all surgeries during the conflict.
QNlKk TIL queen bumblebees are the only bumblebees to survive winter. Since queens are necessary to start colonies in the springtime, killing an existing bee colony (with future queens) can destroy several generations of bumblebees.
4goN TIL that some schools in the Southern United States still hold two separate, segregated proms- one for whites and one for blacks.