100m
2009-8-19 9:53
How fast can human run? Experts said that the limit speed of men's 100m is about 9.45 seconds. In the Berlin World Championships, Bolt improved the world recor......
2008-8-21 12:11
The newly-crowned Olympic 100-meter champion, Jamaican Usain Bolt, astonished the world in a flash at 9.69 seconds. In fact, the 21-year-old has accomplished b......