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TIL ice is a mineral just as much as Quartz is. Ice is a naturally occurring compound with a defined chemical formula and crystal structure, thus making it a legitimate mineral. Its only limitation, in comparison to all other minerals, is that it is not stable at room temperature.

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wL7E6 TIL: Ban-the-box policies, which prevent employers from asking about a candidate’s criminal history until later on in the hiring process, lower the probability for low-skilled black and Hispanic men from getting employed by 5.1% and 2.9%, respectively, regardless of criminal background.
rNkbe TIL that the largest cavalry charge in history happened at the Turkish seige of Vienna. Commanded and led by the King of Poland, 18,000 German and Polish horsemen charged at the Turkish line, destroying the invading Ottoman army. The battle is thought to have ended the Islamic invasion of Europe.
ANJj4 TIL Vincent van Gogh created around 2,100 artworks during his lifetime. This includes about 860 oil paintings and over 700 drawings. Despite his prolific output, he only gained widespread recognition and acclaim posthumously. Van Gogh’s artwork can be viewed on his official page.
v1RNL TIL of Irina Margareta Nistor, a Romanian woman that dubbed banned Western films during Romania's Communist regime, and by doing so, voiced Sylvester Stallone, Jean-Claude Van Damme, and Tom Cruise (among others).
kO7oB TIL that the electronic song "Scary Monsters and Nice Spirtes" by Skrillex is effective in delaying host attack, blood-feeding, and disrupting the mating process of the yellow fever mosquito.