Science has once again attempted to unravel the mystery of the world's fastest man Usain Bolt.

Physicists who have examined Bolt's world record run of 9.58 set at the 2009 World Championships in Berlin, Germany, have been astounded by a number of revelations. With his huge 6ft 5in frame Bolt could hardly be considered as aerodynamically flawless.

However, according to a Cambridge physicist John Barrow, in an interview with the BBC, the sprinter uses a superhuman amount of energy to overcome air resistance caused by his big frame, greatly aided by 'extraordinary stride length' and 'lots of fast twitch muscle fibers'.

Research in various media has revealed some eye-popping facts about the sprinter.

His maximum power output came less than a second into the race; figure about 3.5 horsepower, or enough to power a 'large vacuum cleaner', reports PopSci.

His top speed came about 7 seconds into the race at around 27 mph.

Only 8% of the energy Bolt expended in the race was used for motion; the rest was to overcome the aerodynamic drag of his large frame.

Even without the slight tailwind he had that day in 2009, he would have busted the record with a speed of 9.68 seconds, say the physicists.