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TIL Bagpipers played DURING battle on the front-lines, completely unarmed…

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VMgoD TIL that Archimedes estimated the value of pi with a polygon in a circle in a polygon. He made the diameter of the circle 1, so the circumference was pi. With the circle's diameter, he found the perimeters of the polygons. Therefore, the value of pi (the circle's circumference) is in between them.
vDRL TIL there is a language called Boontling spoken only in the small Northern California town of Boonville. It is a mixture of English, Scottish, Irish, Pomo Indian and Spanish.
owGK TIL Batman beat the Hulk in a special cross-over by throwing a can of knock-out-gas at the Hulk’s head, then hitting him in the solar plexus which caused him to breathe in the gas.
oBrJY TIL that atrazine, the most commonly detected pesticide contaminating drinking water in the United States, has been tentatively shown to turn male frogs sterile and, in about 10% of cases, into females.
Lkegm TIL that the Jurassic period is named after the french moutain of Jura where geological elements of that period were named "terrains jurassiques" in 1829 by Alexandre Brongniart