It's one of the most graceful sports at the Olympic Games - divers spin through the air with grace and poise, tumbling into the pool with only the quietest plop.
But take a closer look and you can see the strain it takes to do the reverse three-and-a-half somersaults that win you the points for difficulty.
These athletes, from China to Australia and Germany, aren't quite managing to keep a straight face as the London 2012 individual diving finals get underway.
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