Back in 2009, Jamaican sprinter Usain Bolt ran the 100-meter dash in a record setting time of 9.58 seconds. A recent study highlights the astounding physics behind this unprecedented human achievement.
An interesting thing about Bolt is that he's 6ft 5in tall. That means he needs to expend a bit more energy than the average sprinter in order to overcome the drag caused by wind resistance; he's actually not very aerodynamic relative to other runners. But that said, his record was the biggest increase since timing was introduced in 1968. He's truly a freak of nature.