How Usain Bolt Can Shave 0.13 Seconds Off His 100m Time (Using Math) [Sports]

Usain Bolt is a hero: he can run 100 meters in 9.58 seconds flat. But a mathematician thinks that—without any extra effort—he can shave another 0.13 seconds off his time. Here's how. More »

2012 grammys foo fighters nikki minaj grammys album of the year nicki minaj grammy red carpet