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For instance, did you know the Eiffel Tower can be 15 cm taller in the summer because of thermal expansion? Or that polar bears are nearly undetectable by infrared cameras due to the thickness of their coat and skin?
But along with those rather "cool" facts, there are just as many that are truly unsettling.
Curious to find out what facts can give you the heebie-jeebies, Redditor aelmnnor asked:
"What's a scientific fact that creeps you out?"
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