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TIL a square with rounded corners is called a squircle
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mxOwp
TIL that half of the world's roundabouts are located in France. There were more than 30.000 in 2008; it is now estimated to be around 50.000.
jNMWM
TIL The reason we find some smells bad is because our brains have evolved to react with disgust to the smells of thing which are major disease vectors - things such as vomit or rotting carcasses. The greater the risk of disease, the more offensive you would find the smell.
BrJPD
TIL Vitamin D is used as rat poison in extremely high doses, in which it causes Calcium crystals to form in organs (Calcification), tearing them apart from the inside
dDVkQ
TIL that a German Leopard tank's aiming system is so precise that it can balance a beer glass on its barrel while driving.
77lP
TIL after the US Airways Flight 1549 ditching on the Hudson (aka “Miracle on the Hudson”), officials captured and gassed 1,235 Canadian geese and destroyed 1,739 goose eggs across New York City.