Why the Jabulani moved so weirdly

42:15this now gets to the idea of why the Jabulani was so different because again we'd had the sort of classic style for such a long period of time. >> ball with all of those seams and all of that roughness. That's kind of like the golf ball's dimples, right? >> we tried to get all fancy, you know. >> And why specifically, right? So if the ball is too smooth, what that's going to do is there's going to be a transition as you saw in those curves, right? There's a transition from low speed to high turbulence speed. And what I want is to tune that transition, where that transition is happening. Now, if the transition happens too far up,