Lock and Roll

Wednesday, October 8, 2008 - 12:21 in Physics & Chemistry

Werner O. Merlo’s patio umbrella refused to stay locked in a tilted position. Frustrated, he replaced the sagging sunshade’s flimsy ball-and-joint with a self-designed mechanism that swiveled smoothly yet held fast at an angle. His umbrella never flopped over again. "I'm not really the umbrella-manufacturing type, so the first thing that came to mind was, What else can I use this for?" says Merlo, a former chemist at the University of Alberta. read more

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