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TIL during sling load operations with helicopters, a dangerous amount of static can build up on the airframe so one of the loaders has to use a discharge wand hooked to a grounding stake or they will receive a fatal electric shock.

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LkA1p TIL that 5 of the 6 longest bridges in the US are in Louisiana.
woXo TIL the slang term for prostitute is believed to have originated from Civil War General Joseph Hooker because he was a hardcore partier with many ladies.
p8Jb8 TIL that the generic silhouette in Microsoft Outlook is actually a shadow cutout of Bill Gates' mugshot when he got arrested for a driving offense in 1977
v1bDL TIL Scouser John A. Brodie, who invented the goal net for use in football matches, also engineered the world's longest underwater road tunnel (Mersey Tunnel, a record held for 24 years), and also chose the site where New Delhi stands today.
oBPLL TIL the word "literally" has been used figuratively for hundreds of years. Charles Dickens, Charlotte Brontë, Jane Austen, and Mark Twain all used it for hyperbole.