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TIL That Sunglass Lens Colors Have Different Uses & Aren't Just For Looks

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via reddit.com

Me7gA TIL that the actress who played Zenon was arrested and charged over a DUI.
e8M4 TIL…There is a church in the Czech Republic where 40,000 skeletons decorate the church. Skeleton chandeliers, coats of arms, bone garlands etc
5YVED TIL of the "Mile Into The Wild" Walkway, an elevated walkway in a refuge for more than 450 Lions, Tigers, Bears, Wolves and other rescued carnivores. It's elevated because the animals do not consider sky as territory, allowing humans to observe them without causing a fight or flight response.
VM5LZ TIL of the "Vitamin D Paradox" among black people. Researchers couldn't understand why black folks had better bone health while 80% were chronically Vit D deficient. They discovered black folks make less of a protein which interferes with Vit D. They have less overall but use it more efficiently.
xaKg TIL NASA told Hillary Clinton she couldn’t become an astronaut because she’s a girl.