A diver is surrounded by crystal-clear bubbles after diving into the pool during a training session at the National Aquatics Center, known as the Water Cube, in Beijing, China, August 5, 2008.

A diver is surrounded by crystal-clear bubbles after diving into the pool during a training session at the National Aquatics Center, known as the Water Cube, in Beijing, China, August 5, 2008.

A diver is surrounded by crystal-clear bubbles after diving into the pool during a training session at the National Aquatics Center, known as the Water Cube, in Beijing, China, August 5, 2008.

(Xinhua News Agency August 6, 2008)