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TIL The Judy Bolton books 1932-1967 by Margaret Sutton is the longest-lasting juvenile mystery series written by an individual author

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0e6j TIL the literal translation of Utopia means “Not a Place” rather than Eutopia which means “Good Place”
oDWW TIL that every rainbow is a circle, but from the ground, only its upper half can be seen. Pilots have noticed full-circle rainbows outside their plane windows, proving that if you get high enough, you can see a rainbow in its entirety.
X7ED TIL that the Dead Marshes in the Lord of the Rings were most likely inspired by J.R.R. Tolkien’s involvement in WW1. Bomb craters would fill up with rain and dead soldiers from both sides could be seen floating inside the craters.
x6vOb TIL about the Personal Rescue Enclosure or "rescue ball", a 36 inches (91 cm) sphere intended to protect an astronaut in space in case they had to leave the Space Shuttle; another suited astronaut would then carry the sphere. It was developed in the early days of the Shuttle program but never flown.
KOdoJ TIL Acne is caused because we evolved to lose body hair faster than our glands adapted, meaning they produce oil to lubricate hair that isn't there resulting in a build up.