Dec 13, 2013, 8:52 AM EST
After our extensive research it seems as though we can at least guarantee one thing at the 2014 World Cup in Brazil… a better soccer ball to play with.
Cast your minds back to the 2010 World Cup and the debacle that was the Jabulani ball which swerved and dipped all over the place to resemble a beach ball, rather than the ball of choice for the worlds most prestigious soccer tournament.
But fear not, the Brazuca — which was unveiled by FIFA last week before the 2014 World Cup draw — won’t be a distant relative to the Jabualni. It will be, well, more normal. I’m sure goalkeepers of all 32 nations who’ve qualified are now breathing a huge sigh of relief.
For all the details on the new ball, we share with you the incredible in-depth study from Ben Popken for the Consumer News at NBC Business. Ben takes up the story as a Japanese University and NASA break down the science behind the ball, which will be kicked around to either crush or ignite the dreams of billions of soccer fans across the globe next summer.
Over to you, Ben.
The Jabulani curse is lifted.
Any knuckleballs at the 2014 World Cup should be mostly intentional, according to new independent wind tunnel results by Japanese university researchers.
The researcher’s data shows the new Adidas-designed Brazuca matchball for the 2014 World Cup is less likely to swerve at goal strike speeds, meaning there shouldn’t be a repeat of the maddeningly erratic balls at the 2010 World Cup. During those games, goalkeepers and outfield players alike accused the Jabulani matchball, with its glossier texture, asymmetrical panels, and shorter panel bonds, for voodoo shots and an early tournament goal drought.
At the University of Tsukuba in Japan, sports engineering researchers mounted soccerballs in a wind tunnel, blasted them with air, and measured what happened.
Now, in aerodynamics, for every surface there’s an airspeed at which the air flowing over it switches from smooth to turbulent, what’s called the “critical Reynolds number,” and can lead to the sudden veering in flight known as “knuckle-ball.” But in the tests the Jabulani’s occurred at higher speeds than the mid-30’s mph seen on older balls.
In fact, it happened at 53 mph, right in the 50-60 mph range professional goal strikes and corners start at.
That could explain a few things that happened in South Africa.
This time around, those strikes should power through the knuckle-ball effect. In the wind tunnel tests, the Brazuca’s critical Reynolds number occurred at 38 mph.
Those results are more comparable to the Tango 12 ball, itself a player favorite and one of the balls on which Adidas based the design for the Brazuca.
“The asymmetry of ball panel location is one of the reasons to produce knuckling effect,” said Dr. Takeshi Asai of the University of Tsukuba’s Institute of Health and Sports Science. “Ordinarily, the asymmetry of ball panel increases, as the ball panel number decreases.”
That means the Brazuca’s six interlocking boomerang panels, fewer than the Jabulani’s eight, both of which are fewer than the classic 32 pentagon and hexagon panels, could normally pose a problem.
“However, the total distance of the panel bonds or seams of the Brazuca is longer than that of Jabulani,” said Aasai, 10.89 feet worth compared to the Jabulani’s 6.49. “Therefore, I think the strength of the knuckling effect may be slightly lower than that of Jabulani.”
A NASA researcher agrees.
Rabi Mehta, Branch Chief at NASA Ames Research Center and an aerodynamics expert who previously evaluated the Jabulani, has examined close up photos of the new ball. He thinks the Brazuca will gain stability over the Jabulani from its longer seams, identical interlocking panels, and a surface that features a slightly raised texture similar to a basketball’s.
“My theory is that the effective roughness compared to the previous ball is increased, which means the speed at which it knuckles is lower,” said Mehta.
That’s good news for Adidas, which has spent years making sure the Brazuca isn’t Jabulani part 2. They kicked the ball over and over with a robot leg and measured its flight, interviewed hundreds of professional players, a third of which were non-Adidas sponsored, and even snuck the Brazuca in as the matchball for the U20 World Cup.
“While we can’t comment on independent research, we can say that Brazuca is our most tested ball ever,” said Adidas spokeswoman Lauren Lamkin. “We conducted two-and-a-half years of testing in 10 countries across three continents involving more than 600 players and 26 teams to ensure that Brazuca exceeds all performance standards.”
However, she said, “It is correct that the seam geometry aids in flight stabilization.”
Hopefully, all this science leads to surer shots and more exciting gameplay in Brazil come this June. If not, at least it will be harder to blame the ball for it.
La Liga and Serie A roundup: Valencia, Napoli falter in Champions League bids; Milan derby a stalemate
Nov 23, 2014, 10:20 PM EST
Catch up on all of Sunday’s action and movement in La Liga and Serie A.
Nov 23, 2014, 8:15 PM EST
The Revs and Galaxy may both hold one-goal advantages, but they’re very different leads built in very different ways.
Nov 23, 2014, 7:45 PM EST
The Crystal Palace manager hailed his side’s “Neil Warnock performance” as they pull themselves out of the relegation zone.
Nov 23, 2014, 7:14 PM EST
The Galaxy find themselves just 90 minutes from the third MLS Cup final in four years after a narrow victory over the Sounders.
Halftime, MLS Cup Playoffs: LA Galaxy, Seattle Sounders in 0-0 Western Conference Championship stalemate
Nov 23, 2014, 6:05 PM EST
Zeroes on the scoresheet, but plenty of action in the first half. Sounders very patient, but Galaxy getting close.
Nov 23, 2014, 5:32 PM EST
He’s only ever done it twice in his MLS career, but with the season — and maybe his career — on the line, Thierry Henry will play on artificial turf next week.
Nov 23, 2014, 4:50 PM EST
The Spurs manager wouldn’t be drawn into talk about the winner from Christian Eriksen or the red card to Gaston Ramirez, instead discussing how he was just delighted to get three points any way he can.
Lineups, MLS Cup Playoffs: LA Galaxy host Seattle Sounders in Western Conference Championship, leg 1
Nov 23, 2014, 4:25 PM EST
Lineups are in for the Galaxy and Sounders’ Western Conference Championship first leg matchup. Two massive omissions leave Seattle shorthanded.
Nov 23, 2014, 4:07 PM EST
The Eastern Conference Championship first leg finished Red Bulls 1-2 Revolution, putting Jay Heaps’ side in full control of the series.
Nov 23, 2014, 3:10 PM EST
Steve Bruce challenged the decision to give Gaston Ramirez a straight red card, and criticized Tottenham defender Jan Vertonghen for going down too easily.
Halftime, MLS Cup Playoffs: New York Red Bulls 1-1 New England Revolution after thrilling first half
Nov 23, 2014, 2:52 PM EST
The first 45 at Red Bull Arena was wild. Take a deep breath and relive the thrilling actions, goals and all.
Nov 23, 2014, 2:00 PM EST
New England is undefeated in 11 straight matches with Jermaine Jones in the lineup.
Nov 23, 2014, 1:29 PM EST
Brendan Rodgers was quite downtrodden following Liverpool’s 3-1 defeat at Crystal Palace, the club’s third defeat in a row.
Nov 23, 2014, 12:55 PM EST
Hull led inside 10 minutes and looked solid on both ends, but a straight red to Gaston Ramirez for a kick at Jan Vertonghen, and Christian Eriksen completes the Spurs comeback a minute before full time.
Nov 23, 2014, 11:50 AM EST
Fastest ever red card? It certainly has a shout after Australian completes an ugly tackle straight after coming on.
Nov 23, 2014, 10:48 AM EST
Mauricio Pochettino has called on Ben Davies and five others to fix things for Spurs, as both sides make a whopping six changes to their lineups from last weekend.
Nov 23, 2014, 10:26 AM EST
Yannick Bolasie was a force down both flanks as Neil Warnock’s Crystal Palace pulls out of the relegation zone.
Nov 23, 2014, 10:01 AM EST
David Moyes began his tenure in Spain with a 0-0 draw, but there was more to it than that.
Nov 23, 2014, 8:19 AM EST
After missing the World Cup while rehabbing a serious ankle injury, Marco Reus is faced with yet another long road back.
Nov 23, 2014, 7:48 AM EST
With Daniel Sturridge shelved for weeks and Mario Balotelli unable to get past a groin knock, Liverpool turns to Rickie Lambert to produce goals at Selhurst Park.
- Inside Look, MLS Cup Playoffs: How Revs, Galaxy built very different one-goal leads 0
- Recap: LA Galaxy grab 1-0 lead over Seattle Sounders in Western Conference Championship 1
- Despite artificial turf, New York Red Bulls’ Thierry Henry says he’ll play next week at New England 1
- Recap: New England Revolution snatch 2-1 lead, two away goals from New York Red Bulls 6
- Video: Brendan Rodgers says Liverpool needs to “become a team” 1
- Crystal Palace 3-1 Liverpool: Bolasie carves up Liverpool defense 3