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TIL that refining a 42 gallon barrel of crude oil yields 20gal gasoline, 7gal diesel, and 17gal of petroleum byproducts such as propane, ammonia and plastic material, totaling 44 gallons; a net gain of 2 gallons.

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d8ZQZ TIL that the words “made” and “had” were originally contractions of the words “maked” and “haved.”
VWn8 TIL your brain makes decisions before you realize it, according to researchers that used brain imaging to predict what choice people would make before they themselves were aware of having made a decision—prompting reconsideration of what we consider “free will”
oRlXo TIL that the Odd Fellows have a fascinating history undocumented before the 18th century, and there are theories about the origins of their name ranging from the niche professions of founding members to how their values of fraternalism, benevolence and charity weren't common in the 18th century.
4dL5 TIL there is something called “the small penis rule” that authors use to avoid libel lawsuits: if a character is described as having a small penis, no one will want to sue and say the character is based on them.
w0MJ TIL that silent reading wasn’t common prior to the 4th century, and that Saint Ambrose was one of the first people to practise it.