it's called the bra zuk ka.ated for faster flight, weighing less than a pound, designed by adidas, studied by nasa. >> the ball is more accurate, it's more stable. it doesn't scatter around when you kick it. >> reporter: at the ames research center outside san francisco, scientists study its aerodynamics. the bra zuk ka has six polyurethane panels with longer and deeper seams, a distant cousin from the traditional 32 paneled black and white. >> sfargs the air wroe dynamics i think the most important change is the length and depp mg of the seam. >> reporter: with its dex tured finish, the bra zuk ka is the 12th adidas ball used in world cup history. clarence goodson play nd the 2010 cup, that ball was panned by players for unpredictable movement. >> it was really a nightmare. the goalies on the team were saying, look, this ball is moving all over the place, and if the ball is not rolling true or flying true, it makes the game even more difficult. >> reporter: players have raved about the ball's advances. for most