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.

source:
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.

Conte revels in Chelsea intensity in controlling win at Hull City

HULL, ENGLAND - OCTOBER 01:  Antonio Conte, Manager of Chelsea reacts during the Premier League match between Hull City and Chelsea at KCOM Stadium on October 1, 2016 in Hull, England.  (Photo by Laurence Griffiths/Getty Images)
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The intensity from Chelsea’s players in their 2-0 victory at Hull City was a sight for Antonio Conte‘s sore eyes.

Actually, that might be understating it.

“I like it when the team plays in this way,” Conte said after the win. “I like it so much.”

[ MORE: Hull City 0-2 Chelsea ]

The Blues controlled the match at the KC Stadium long before Willian and Diego Costa hit bullets past a helpless David Marshall to seal Chelsea’s 11th, 12th, and 13th points of the young Premier League season.

Conte loved the industry from his club in breaking a three-match losing streak.

From the BBC:

“We are working very hard and I am sure we can improve a lot if we continue to work in this way. I am pleased for all the players because in these situations because we have a clean sheet. In previous games we conceded too many goals. To finish with a clean sheet is very important. We also scored two and the performance is good. We must follow this with work, work, work!”

“We can improve and we must improve a lot and continue to work. After these two defeats it’s not easy to work because two defeats for Chelsea are heavy defeats. But this was a good answer.”

Yeah… he’s pretty intense.

Adrian, Bilic praise Messi-like equalizer from “pure magic” Payet

West Ham’s Dimitri Payet, left, and Middlesbrough’s Marten de Roon challenge for the ball during the English Premier League soccer match between West Ham and Middlesbrough at The London Stadium  in London, Saturday, Oct. 1, 2016.(AP Photo/Frank Augstein)
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To hear West Ham goalkeeper Adrian describe it, the Irons should start streaming their training sessions so we can see more magic from Dimitri Payet.

West Ham’s talisman rescued a point for his struggling club when he essentially worked six Middlesbrough players and delivered a terrific finish in a 1-1 draw at Olympic Stadium in London.

[ WATCH: Payet’s wondergoal ]

Adrian says they see that a lot.

“Payet is like that in training,” the goalkeeper said. “He scored like a Lionel Messi goal at Barcelona. It is a massive goal to us.”

[ MORE: West Ham 1-1 Middlesbrough ]

The goal truly was massive, as the Irons avoided losing five in-a-row. They are still in the relegation zone, but baby steps.

Here’s WHUFC head coach Slaven Bilic:

“It was an unbelievable goal, it was a pure magic. It was only a shame it wasn’t a winning goal. We needed that moment of class from our best player to lift the whole team up.”

Sunderland: Moyes disappointed with Defoe miss in draw vs Baggies

SUNDERLAND, ENGLAND - OCTOBER 01: David Moyes, Manager of Sunderland reacts during the Premier League match between Sunderland and West Bromwich Albion at Stadium of Light on October 1, 2016 in Sunderland, England.  (Photo by Matthew Lewis/Getty Images)
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One of the few bright spots for Sunderland last season was Jermain Defoe, and he has four goals this season through seven starts.

But the English striker missed a chance that could’ve given the Black Cats a much-needed lead in a match they wound up drawing 1-1 with West Brom at the Stadium of Light on Saturday.

[ MORE: Sunderland 1-1 West Brom ]

Sunderland manager David Moyes is frustrated, obviously, with his club gained just two points from their first seven matches.

But pointing in the direction of the man who has four of your six PL goals on the season is a bit… odd, especially when Defoe is being mentioned as a possible England call-up.

From the BBC:

We didn’t get the three points. We didn’t deserve to be 1-0 down. We had a great chance through Jermain Defoe – expected him to score. We’re pleased we got a point out of it.

…”There was bits of play that got us a chance. Jonny Evans made a good block from Jermain Defoe.

“We need Jermain to score more, although he has got us goals.”

Troubling times in the Northeast, where the Black Cats are again off to a downright horrible start to the season. Eventually, one of these is going to break them.

Watford 2-2 Bournemouth: Thriller sees Cherries pegged back

WATFORD, ENGLAND - OCTOBER 01: Troy Deeney of Watford scores his sides first goal during the Premier League match between Watford and AFC Bournemouth at Vicarage Road on October 1, 2016 in Watford, England.  (Photo by Richard Heathcote/Getty Images)
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  • Wilson, King twice gave Cherries lead
  • Deeney, Success equalized
  • Wilshere hit post twice, Stanislas hit bar
  • Both teams on eight points

Watford and Bournemouth shared the points at Vicarage Road in a thrilling 2-2 draw on Saturday.

Bournemouth twice took the lead through Callum Wilson and Josh King but Watford equalizes through Troy Deeney and Issac Success. The Cherries went agonizingly close to taking all three points as Jack Wilshere hit the post twice (his second attempt a contender for miss of the season) and Junior Stanislas hit the crossbar.

With the point both teams move to eight points for the season but there’s no doubting Walter Mazzarri will be happier than Bournemouth boss Eddie Howe.

[ MORE: Watch full PL match replays ]

Watford started well with Odion Ighalo going close and Troy Deeney had a shot blocked with the home side looking to get back to winning ways. Bournemouth recovered and went close via Junior Stanislas’ free kick which forced Heurelho Gomes to tip over the bar.

Bournemouth took the lead as Stanislas whipped in a great cross from the right which Wilson nodded home and under Gomes. 1-0 to the Cherries.

[ MORE: Latest Premier League standings ]

Watford went close to equalizing before half time but Artur Boruc saved twice from Nordin Amrabat from close range and then Wilson cut inside and teed up Andrew Surman but he fired over from a great position.

[ VIDEO: Premier League highlights ]  

Watford were level within five minutes of the restart as Amrabat dribbled in from the right and teed up Deeney to make it 1-1.

Moments later Bournemouth almost went ahead as Jack Wilshere danced through the Watford defense but his low effort hit the post and came out. At the other end Amrabat again provided a great cross which found Deeney but his header was superbly clawed away by Boruc.

[ MORE: Full lineups, stats, box score ]

Substitute King then came onto the pitch, beat Amrabat and ran at Watford’s defense before seeing his shot from outside the box deflect in. 2-1 to Bournemouth.

The Cherries’ lead didn’t last for long as a free kick from the left flank found Success at the near post and he flicked home into the far corner. 2-2.

Wilshere missed a glorious chance to put Bournemouth ahead as Smith drilled a great cross in from the right and from six yards out he somehow hit the post. Bournemouth continued to push forward and came agonizingly close to grabbing all three points but Stanislas’ curling free kick bounced off the crossbar and out.