The secret to Usain Bolt's speed may lie in synchronicity

Usain Bolt is one of the greatest athletes of all time. He is the fastest man in the world, holding the 100 metre sprint record of 9.58 seconds, which he achieved at the final of the 2009 IAAF World Championships in Berlin.

Usain Bolt rules Twitter during Games

Jamaican sprint king Usain Bolt dominated Twitter during the Olympics, the social networking site has revealed, with his gold in the 200 metres inspiring a staggering 80,000 tweets per minute.

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