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TIL Unit abbreviations start with a capital letter when they are named after someone (e.g. K for Kelvin, Hz for Hertz ...), otherwise they are lower case (e.g. m for meter, s for second …)

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YVWr TIL a Texas high school honor student was thrown in jail for missing classes, despite the fact that she was working full- and part-time jobs, taking advanced courses, and caring for her younger sister as her divorced parents moved away. The judge said he wanted to make an example of her.
MrB0 TIL that Apart From Top 20 Best Sellers, Amazon Books Are 14 Percent More Expensive Than Competitors
nWyYb TIL that there is a "witch window" also known as a "Vermont window," found almost exclusively in Vermont. These slanted windows are installed at a 45-degree angle in the gable-end wall of a house and are designed to prevent witches from flying into the home on their brooms.
GYwPg TIL that the fattest animal on earth is not a manatee or a whale but the 1½ inch Miller Moth Caterpillar (aka army cutworms). With 72% body fat it is more calorie-rich than elk or deer.
JYDpl TIL A WWI soldier injured in France in 1917, went on to marry the nurse that mistook him for a German spy and advised surgeons to take his life on the operating table. He accidentally spoke German to doctors while under a fever, and she took it as spy language. They were married for over 50 years.