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TIL Tourette's Syndrom is not classified as a disability

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via reddit.com

JYGY8 TIL Why blueprints are blue. In the mid 1800's, a photo chemical process was developed that enabled copying documents. The blueprinting process deposits blue ferric ferrocyanide in areas that were blank in the original document. Thus, the copy consists of white lines on a blue background.
1aQPX TIL that the Marvel Comics character Rocket Raccoon was named after The Beatles song "Rocky Raccoon."
GRoQ TIL In 2008, the Dutch voted ‘Swaffelen’ as word of the year. It means to repeatedly smack one’s penis against something
D1ZDe TIL hat-makers in the 19th century regularly used mercury in the manufacturing of felt hats, which caused a high rate of poisoning and led to neurological damage like slurred speech, memory loss, and tremors. This was the inspiration for the Mad Hatter character in Alice in Wonderland.
QmEe TIL that a man sneezed out the tip (penny sized) of a toy dart while at his computer. It had been lodged unknowingly in his nasal cavity for 44 years. He had to confirm with his mom…