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187

TIL surgical scrubs are green and blue to provide eye relief and a visual contrast to the pinks and reds the surgeon is focusing on

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6NWZ TIL that human tears are a defense mechanism, the scent of which causes testosterone levels to decrease, reducing both aggression and sexual urges.
8e1YX TIL that reindeer eyes change colour through the seasons. Their eyes are gold during the summer and blue in the winter. This change helps them see better in the varying levels of light in their Arctic habitat.
5DgP TIL Butterfly McQueen, one of the stars of “Gone with the Wind,” was unable to attend the film’s premiere because it was held in a whites-only theater
R5Bv6 TIL I learned of Saint Hunger, a 9th bishop of Utrecht who got the job because the leading candidate, a man named Craft, didn't want the job because he was so rich and feared that would attract vikings to raid the city.
bkd7 TIL that the company that created Zyklon B, the gas that was used to kill millions of Jews in the Holocaust, still exists, it is currently a pest control company.