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TIL Military units break step when marching over bridges to avoid causing a resonate wave that could collapse the structure.

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OdA6 TIL that royal women used to give birth in front of an audience to prove that the child was indeed the fruit of the royal woman’s womb.
J1yy1 TIL computer servers are getting so hot and cooling them emits so much carbon (as much as the aviation industry), manufacturers are dunking servers into nonconductive liquid tanks to cool them and help their clients meet power usage effectiveness regulations
ZjDQ TIL that Alex Trebek and Pat Sajak swapped places on Jeopardy! and Wheel of Fortune as an April Fool’s joke in 1997
yQlJa TIL of Arnold Rothstein, the most powerful of the Jewish gangsters, AKA The Brain. He was strongly believed to have fixed the 1919 World Series, and was the first to import scotch during Prohibition. He is believed to be the one who transformed disorganized crime into a business.
XQnQ TIL Steven Spielberg spent $250,000 of his own money in a campaign to see Bill Murray win an Oscar for his role in “What About Bob?”