Good morning, friends. Two weeks ago, I wrote about Bob Kearns, a college professor who invented the intermittent windshield wiper. He got the idea after accidentally shooting a champagne bottle cork into his eye, which caused him to start thinking about the mechanics of the eyelid. An eyelid doesn't blink at a predetermined rate, but rather moves rapidly when a foreign object lands on the surface of the eye. He reasoned that the windshield wiper of a car should act similarly — altering its wiping speed depending on the amount of rain hitting the windshield.
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