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TIL of Clint Malarchuk, a former NHL goalie. On March 22, 1989, during a game, Malarchuk's neck was cut by errant skate blade, severing his carotid artery and partially cutting his jugular vein. 300 stitches and 10 days later, he was back on the ice.

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wL4b8 TIL the phenomenon of wind throb from an open car window is called Helmholtz resonance, and is the same thing occurring when you blow across an open bottle to produce a tone.
OoOl4 TIL microwave ovens DON’T heat food using the “resonant frequency” of water. They work by causing polar molecules (water is one, and so are some fats) to rotate back and forth quickly in an oscillating electromagnetic field, producing molecular vibrations (heat).
Mev6K TIL: The message to new moms? Leave dad alone with baby. “Studies have actually shown that children who get more attention from their fathers in their first five years of life, actually have better reading scores in school”
EE5X TIL the scene depicting the Omaha landings at Normandy in Saving Private Ryan cost $12 million and used up to 1,500 extras.
v119K TIL many rockers have suffered injuries from headbanging.