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Since 2008, Bolt has taken a jackhammer to the 100-meter world record, lopping off a whopping .14 seconds. That might not sound like a huge chunk of time until you consider it's twice as much as any other sprinter has shaved off the world record since the advent of electronic scoring.

"The amount of time to pick up a leg and put it down is very similar," he says. "It surprised us when we first figured it out."

"You can easily imagine a 4-foot-10 gymnast doing a triple back flip, but imagine Shaquille O'Neal or Yao Ming doing it," he says. "You know they can't do it."