Adidas has made the World Cup ball since 1970 and is contracted through 2014. The German company has defended the Jabulani, saying it doesn't know what the fuss is about because all the qualified ...

To be sanctioned FIFA Approved, a ball is only subject to a handful of more static tests, which the Jabulani ball obviously meets. • Circumference: FIFA Standard: 68.5-69.5cm, Jabulani: 69.0 +/- 0.2 ...

Professor Derek Leinweber has been studying soccer balls. He’s interested in the physics behind them, and is particularly intrigued by the design of the official ball for the 2010 FIFA World Cup ...

So, presenting the adidas Jabulani, the ball that will be used during the tournament. There's a lot going on in that ball, believe me. TechCrunch Desktop Logo TechCrunch Mobile Logo ...

The Adidas Jabulani, famous for its controversial use at the 2010 World Cup, was not like other footballs. It did not do what normal footballs did. And players in South Africa quickly noticed that ...