NASA piles on the Jabulani hate

By Richard Whittall

Now it turns out there is a very real scientific basis for all the moaning. NASA's aerodynamics people at the Ames Investigation Centre managed to get some MLS players to kick a very dusty Jabulani around to what sounds like a soundtrack from a 1970s instructional video. The tests confirm what everyone has been saying: Jabulani's scanty 440-gram weight, coupled with the high-altitude conditions in South Africa, means when at speeds of 44 mph or more the ball becomes susceptible to something called the "knuckle effect." That's aerodynamic shorthand for "it swerves all around like crazy at high speeds because of the air flow on the seams and stuff," which isn't so bad when you get goals like this.  Read more...