ECONOMIST.com: At the athletics World Championships he broke the 100 metres sprint record again, taking his own time down to 9.58 seconds from 9.69 seconds, set a year ago at the Beijing Olympics.
SHOOT: I watched this and he pulled away with ease. It's amazing how you get a winner ina class of his own like this. You'd expect all of them to be neck and neck over 100m. Interesting, Bolt started running with his head down, and abruptly, at about 5-10m, his head popped up and he ran upright. Looked like a deliberate strategy to get his centre of gravity where it would be most effective, and the head helps do that.
SHOOT: I watched this and he pulled away with ease. It's amazing how you get a winner ina class of his own like this. You'd expect all of them to be neck and neck over 100m. Interesting, Bolt started running with his head down, and abruptly, at about 5-10m, his head popped up and he ran upright. Looked like a deliberate strategy to get his centre of gravity where it would be most effective, and the head helps do that.
 clipped from www.economist.comThis is the most the record has fallen since electronic timing was first used in 1968. In the century or so since official records began a little more than a second has been shaved off the quickest time for the sprint, an improvement of some 10%.
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