NASA says adidas' brazuca ball is better than Jabulani because duh
NASA tested out the World Cup 2014 and gave it a pair of thumbs up, saying that it's a marked improvement over 2010's Jabulani
Why is football round? - Quora
NASA Turns World Cup into Lesson in Aerodynamics - NASA
Adidas Jabulani & Brazuca mini Ball FIFA World Cup 2010 & …
Why is football round? - Quora
World Cup: Adidas' Jabulani Ball Promises Higher Scores, Anguished Goa
Study shows Brazuca is better than Jabulani
adidas brazuca review: a masterpiece that has learned from its past
Ahead of the Brazuca reveal we take a look back at the history of adidas World Cup balls. - SoccerBible
The science behind the 'Brazuca': World Cup 2014 ball set to surpass the Jabulani
World Cup: Adidas' Jabulani Ball Promises Higher Scores, Anguished Goa
NASA: World Cup soccer ball still needs work
Ahead of the Brazuca reveal we take a look back at the history of adidas World Cup balls. - SoccerBible