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http://en.wikipedia.org/wiki/Coand%C4%83_effect http://en.wikipedia.org/wiki/Coand%C4%83_effect http://www.straightdope.com/columns/read/2450/urinal-101-aim-for-the-back-wall-or-the-water http://www.straightdope.com/columns/read/2450/urinal-101-aim... http://ask.metafilter.com/8204/Urinal-Aiming#160007 http://ask.metafilter.com/8204/Urinal-Aiming#160007