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TIL Major General Henry Knox, for whom both Fort Knox and Knoxville TN are named, led a logistics marvel during the Revolutionary war known as the "Noble train of artillery."

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R5e64 TIL Non-fatal strangulation is an important risk factor for homicide of women. For women, it was reported in 10% of abused controls, 45% of attempted homicides and 43% of homicides.
0weVR TIL spiral staircases in medieval castles were deliberately made clockwise because it diminished the ability of attackers to properly swing their swords, since right-handed fighters would have had to to contend with the walls while making their striking motions.
lolR5 TIL An astronaut working on the International Space Station needed a tool he didn’t have, so NASA designed a wrench with computer software and emailed the file to him. He then used a 3D printer to create the first object ever designed on earth and made in space.
MegQA TIL that almost 30% of people in the world are obese or overweight.
QJ0RL TIL that in 2007, the Australian Government spent $84 million on a porn filter. A 16-year old boy, Tom Wood, cracked the filter in less than 40 minutes.