2012 London Olympics: Don’t blink or you’ll miss the speeding objects

At the London Games, a radar gun might be more valuable than a program in enjoying how fast things are traveling.

2. Tennis serve

Elise Amendola/AP
Roger Federer of Switzerland serves to Julien Benneteau of France at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Monday, July 30.

141 m.p.h.

At Wimbledon, where the London Olympic tennis tournament is being held, the fastest serve ever recorded (141 m.p.h.) was struck by American Sam Querry in 2009. Venus Williams owns the women’s fastest serve, of 129 m.p.h., clocked during her championship run in 2008. The average first-service speeds, of course, will be much lower, but they are still fast enough that players basically only have about half a second to react and return the ball. The ball’s fuzzy cover helps slow down its flight somewhat, but Wimbledon’s grass courts favor big servers because they are “faster” and the ball doesn’t bounce as high.

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