Brazuca

Behind the Brazuca: NBC’s extensive research hints less “knuckle-ball” in Brazil, NASA agrees

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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.

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After undergoing extensive testing in labs, the “knuckle-ball” will be much less than we experienced with the Jubulani. (NBC News)

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.

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Click to enlarge: Here’s the findings which shows how the Brazuca will perform (NBC News)

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.

El Clasico: Ramos’ 90th minute equalizer leaves Real, Barca level (video)

BARCELONA, SPAIN - DECEMBER 03:  Luis Suarez (2nd L) of FC Barcelona and Sergio Ramos (L) of Real Madrid CF fight for the ball during the La Liga match between FC Barcelona and Real Madrid CF at Camp Nou stadium on December 3, 2016 in Barcelona, Spain.  (Photo by Alex Caparros/Getty Images)
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Real Madrid’s six-point table lead over Barcelona remains thanks to Sergio Ramos’ heroics near both goal lines, as La Liga’s leaders came back to draw 1-1 at Camp Nou on Saturday in the first El Clasico of the season.

Luis Suarez gave Barca a second-half lead only to see Ramos claw one back and then save a goal at the death.

[ MORE: Latest Premier League standings ]

It’s no surprise that Ronaldo was lively, and one of his two shots saved by Ter Stegen after a clever dribble inside the 18.

Messi had a moment, too, his free kick dipping around the wall but into the waiting arms of Keylor Navas.

[ MORE: Full lineups, stats, box score ]

A careful Messi dribble ended with a lofted ball that Luis Suarez chose to trap rather than volley, and Real Madrid killed the chance for a corner kick.

Suarez put Barca up off Neymar’s arrow of a free kick, slightly redirecting the tight-angle shot with his head.

Neymar nearly made it 2-0 in the 68th minute, dribbling through Real’s right side before sailing a shot over Navas and the goal.

Andres Iniesta sprung Messi through in the 82nd minute, but the Argentine dragged his shot wide of goal.

The chances came late for Real, with Sergio Ramos heading a corner just over a leaping Ter Stegen… and the bar. Then Jordi Alba cleared Ronaldo’s in-tight header off the line after Marcelo’s terrific cross.

The equalizer came in the 90th minute, as Ramos rose high to head his chance off a diving Ter Stegen and into the goal. Barca answered with a chance of their own, but Ramos cleared the chance off the line.

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West Brom 3-1 Watford: Baggies ruthless against 10-man Hornets

WEST BROMWICH, ENGLAND - DECEMBER 03:  Jonny Evans of West Bromwich Albion heads to score the opening goal during the Premier League match between West Bromwich Albion and Watford at The Hawthorns on December 3, 2016 in West Bromwich, England.  (Photo by Ross Kinnaird/Getty Images)
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  • Evans, Brunt, Phillips score
  • Kabasele got Hornets back in it
  • Pereyra sent off late on 
  • West Brom unbeaten in four

West Brom beat 10-man Watford 3-1 at the Hawthorns on Saturday to continue their good form as Tony Pulis‘ side push towards the top six.

The Baggies went 2-0 up in the first half through Jonny Evans‘ header and then Chris Brunt‘s low free kick found the back of the net. Watford had some hope in the second half as Christian Kabasele made it 2-1 but after Roberto Pereyra was sent off the Hornets’ chances of a comeback were all but over and Matt Phillips scored late on to seal the win.

With the victory West Brom moves on to 20 points and leapfrog Watford in the table, who stay on 18.

[ MORE: Watch full PL match replays ]

The Baggies got off to a flying start at home as Brunt’s corner was met with a towering header by Evans at the back post to put them 1-0 up in the 16th minute.

West Brom then sat back for the rest of the first half, with Watford doing most of the pressing but coming up against a stubborn Baggies rearguard.

[ MORE: Latest Premier League standings ]

Then came the sucker-punch.

Brunt doubled West Brom’s lead before the break as his free kick from 25-yards out took a deflection off Juan Zuniga and hit the back of the net. 2-0 and Watford were in a hole.

[ VIDEO: Premier League highlights ]

Watford came out fighting in the second half with Troy Deeney meeting a cross from the right but his shot was blocked by Gareth McAuley.

Soon Watford did pull one back as Ben Forster made a great save as McAuley’s header looped towards his own goal and from the resulting corner the ball was slotted home by Kabasele. 2-1. Game on.

[ MORE: Full lineups, stats, box score ]

Watford’s quest for an equalizer was hampered late on as Pereyra was sent off for reacting to a challenge by James McClean with plenty of players from both teams getting involved.

And the game was put beyond doubt in the closing stages as Phillips cut in off the right flank and drilled a low left-footed shot home. 3-1.

Sunderland 2-1 Leicester City: Black Cats buzzing, Luck running out for Leicester

SUNDERLAND, ENGLAND - DECEMBER 03: Robert Huth (2nd L) of Leicester City shows his dejection after conceding the own goal during the Premier League match between Sunderland and Leicester City at Stadium of Light on December 3, 2016 in Sunderland, England.  (Photo by Stu Forster/Getty Images)
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  • Black Cats up to 18th
  • Own goal, Defoe the markers
  • Leicester two points clear of drop
  • Okazaki pulls one back

Sunderland looked left for dead; Now the Northeast club’s Premier League survival hopes very much alive.

The Black Cats knocked off Leicester City for a third win in four games, kicking the Foxes firmly into the relegation mix after a 2-1 match at the Stadium of Light on Saturday.

Jan Kirchhoff hit the header than turned into a Robert Huth own goal, making a much-needed return to the Sunderland side.

Demarai Gray found Shinji Okazaki to make it 2-1 with 12 minutes to play.

[ MORE: Watch full PL match replays ]

Victor Anichebe is a striker in form, barely missing with an early laser before seeing a sure goal deflected away from goal to set up a fifth minute corner. The hosts were humming at the Stadium of Light.

Anichebe had a shout for a penalty in the 14th minute while Wes Morgan jostled with him in the box, but his cries were unheard and the big man didn’t go down.

Scary before the break, as Marc Albrighton and with Black Cats midfielder Steven Pienaar came together in an inadvertant collission. Pienaar was left the worse for it.

[ MORE: Latest Premier League standings ]

[ MORE: Full lineups, stats, box score ]

Islam Slimani didn’t see a seeing-eye pass through the 18 before it struck his shin, and Sunderland dodged an early bullet.

But oh boy. Kirchhoff won a free header by beating Huth to a corner kick, and his effort hit the defender on the way into the goal.

Defoe buttressed the lead with a fine goal, and it was one Sunderland would need following Okazaki’s finish.

Young goalkeeper Jordan Pickford got the job done for the Black Cats down the stretch, and Moyes can puff out his chest for yet another week after a miserable start to the season.

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Stoke City 2-0 Burnley: Hughes’ go top half with win

STOKE ON TRENT, ENGLAND - DECEMBER 03:  Jonathan Walters (2nd L) of Stoke City celebrates scoring his team's first goal with his team mates during the Premier League match between Stoke City and Burnley at Bet365 Stadium on December 3, 2016 in Stoke on Trent, England.  (Photo by Alex Livesey/Getty Images)
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  • Walters lashes home
  • Muniesa nabs first PL goal
  • Clarets sink 14th

Jonathan Walters and Marc Muniesa scored as Stoke City continued to make its early season woes a thing of the past in a 2-0 win over visiting Burnley on Saturday at the Britannia Stadium.

The loss leaves Burnley just three points above the drop zone, while Stoke arrives in the top half with 19 points.

[ MORE: Watch full PL match replays ]

Burnley had the ball in the early stages, but Bruno Martins Indi provided the first bit of true danger when the Stoke back headed the ball off the woodwork.

Tom Heaton missed the game through injury, but he wouldn’t have made a difference on Walters’ opener. The Stoke man belted a Mame Biram Diouf cross behind Paul Robinson to give the Potters a 20th minute lead.

Muniesa scooped up his first PL goal before halftime when Marko Arnautovic provided good service and the ex-Barca man didn’t mess up his lines.

[ MORE: Latest Premier League standings ]

[ MORE: Full lineups, stats, box score ]

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