Usain Bolt - Inform Science

Usain Bolt's 100m world record of 9.58 seconds gives him a top speed of nearly 45km/h. Physiologists at US universities asked athletes to do some odd things on a treadmill, including running backwards and hopping on one leg. "In the 1960 Rome ...

HOW quickly would Usain Bolt have run the 100 metres at the Beijing Olympics if he hadn't slowed in celebration before the finish line? In the final 20 metres of the race on 16 August, Bolt extended his arms and thumped his ...