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TIL there is a common misperception that a landmine is armed by stepping on it and only triggered by stepping off, providing tension in movies. In fact the initial pressure trigger will detonate the mine immediately.

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69Ew TIL the first ever hardcore porno was made in 1915. It was directed by A. Wise Guy, photographed by Will B. Hard and produced by Gay Paree Picture Co.
xVBo7 TIL that the number of Jews worldwide as of 2019, is the same number of Jews there were in 1925, pre-WW2.
d8B7Z TIL that the US Government made and released a freely available font called Public Sans, because "sometimes you need one that’s simple, neutral, and isn’t Helvetica."
Zpm7v TIL that DNA is not instructions for cells to build the organism, just a list of proteins that cells can make. Scientists still aren’t sure how cells cooperate to build tissues & bodies
R7o1w TIL how you can tell if two screenwriters wrote the screenplay together or rather rewrote each others. If it says "x&y" it means they wrote it together. However if it's "x and y" it means that they rewrote each others material.