Nasa runs tests and demonstrates that Brazuca is better than Jabulani

According to Adidas, company responsible for the production of the official balls for FIFA's competitions, 2010 balls had a sewing that didn't let it have a normal rotation

iG Minas Gerais | O Tempo |

Um teste realizado dentro de um túnel de vento comprovou a eficácia da bola
Divulgação/Nasa
Um teste realizado dentro de um túnel de vento comprovou a eficácia da bola

If, on one side, 2010 World Cup ball, held in South Africa, has been severely criticized by players and coaches, Brazuca - which is getting into the field at the matches held this year - has been praised even by scientists of respected and famous organizations.

According to Adidas, company responsible for the production of the official balls for FIFA's competitions, 2010 balls had a sewing that didn't let it have a normal rotation, and that made it harder to predict which way the ball was going.

Nasa, north-american research and technology agency, has pledged having worked together with Adidas in order to perfectionate the ball for the world championship held in Brazil. According to the company, Brazuca has only six panels over its surface - two less than Jabulani. Besides, it presents some irregularities on its leather, which contributes for a better aerodynamics.

"A thinner layer of air is formed next to the surface of the ball and that layer is key to the performance", explains Rabi Mehat, NASA's laboratory chief.

A test run inside a wind tunnel has proven the balls efficiency. "The players are going to be happier with the new ball", says Mehta. It's more stable at flight and will behave more like a traditional ball of 32 panels".

Despite Brazuca's rougher aspect making it slower, it helps so that less unexpected swerves happen and so that the players have more control over its movement. The squads are thankful! 

Leia tudo sobre: NasaBrazucaAdidasJabulaniWorld Cup