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TIL Grey eyes appear grey due to Mie scattering, the same type of scattering that causes the sky to appear grey on rainy days.

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OoMDg TIL that a University of Clemson student conducted an experiment in identifying ways to help turtles successfully cross roads. He placed a fake turtle in a road to observe driver behavior and disturbingly found that six percent of people deliberately went out of their way to hit the turtle.
4XpGg TIL A woman was successfully was diagnosed in 1984 of brain tumor, after she began hearing unknown voices in her head that told her she needed to have a brain scan.
LgPd TIL that in ancient Rome, one of the most common cooking ingredients was called “laser”, from the silphium plant. It does not exist today: it was so delicious that it was harvested to extinction from its natural habitat in what is now Libya. We think that it probably tasted something like garlic.
yVaXw TIL that Google Maps started out as a C++ program designed by two Danish brothers, Lars and Jens Eilstrup Rasmussen. Google acquired the program from Where 2 Technologies in 2004 and turned it into a web-based product.
7EmO TIL that Daryl Davis, a black musician, is credited with dismantling the entire KKK network in Maryland. He did this by befriending many members, even going so far as to serve as a pallbearer at a Klansman’s funeral.