Forbes contributors publish independent expert analyses and insights. Tim Newcomb covers tennis gear/business, stadiums and shoe tech. So much is made about the technology of tennis rackets. But don't ...

In the stringing room in Arthur Ashe Stadium, nestled near the locker rooms and the players’ lounge, 12 stringers worked nonstop yesterday and this morning to prepare for opening day of the U.S. Open.

The Rickenbacker 360/12 is the most famous and popular electric 12-string guitar, thanks to its use by George Harrison on more than a dozen Beatles songs like A Hard Day’s Night, Can’t Buy Me Love, ...