Science of Golf: Why Golf Balls Have Dimples

NBC Learn, in partnership with the United States Golf Association, explores the Science of Golf. Here, Steve Quintavella, USGA equipment standards operations manager, illustrates why golf balls have dimples and what they do for distance. Visit http://www.NBCLearn.com for more. For daily updates from the United States Golf Association, visit us at http://www.usga.org, on Twitter (  / usga;     / usopengolf  ) and on Facebook (  / usga;     / usopen  .