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.

Bolt dream of 9.4sec mark is possible - study

Olympic sprint champion Usain Bolt's dream of completing the 100m in 9.4sec is feasible, according to a Dutch mathematical study whose findings were unveiled Wednesday.

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