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.

source:
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.

Watch Live: Canada takes on T&T in CONCACAF Olympic qualifying

HOUSTON, TX - FEBRUARY 11:  Deanne Rose #6 of Canada battles for the ball with Kayla De Souza #4 and Mariam El-Masri #15 of Guyana during the 2016 CONCACAF Women's Olympic Qualifying at BBVA Compass Stadium on February 11, 2016 in Houston, Texas.  (Photo by Scott Halleran/Getty Images)
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Canada and Trinidad & Tobago face off for the top spot in Group B in CONCACAF Women’s Olympic qualifying today in Houston.

[ WATCH LIVE: T&T vs. Canada ]

With wins in their opening matches, both sides are tied on three points and will look to take sole possession of first place on the Road to Rio.

Canada started off qualification with an easy 5-0 win over Guyana, while Trinidad & Tobago needed two late goals to beat Guatemala 2-1.

[ WATCH LIVE: T&T vs. Canada live online via NBC Sports Live Extra ]

After taking home the bronze medal at the 2012 Olympics, the Canadians will be favorites along with the United States to qualify for the Rio Games from CONCACAF.

Premier League roundup: Top Four tussles and a Liverpool light show

LONDON, ENGLAND - FEBRUARY 14: Francis Coquelin and Aaron Ramsey of Arsenal in action with Shinji Okazaki of Leicester City during the Barclays Premier League match between Arsenal and Leicester City at the Emirates Stadium.  (Photo by Michael Regan/Getty Images)
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Sunday’s Premier League triple header on NBCSN delivered drama, goals and controversy by the time the dust settled on the day’s action.

[ MORE: Saturday’s action ]

All told, we saw 12 goals, a red card, two penalties and a tightened title race.

Let’s take a spin through those three matches.

Arsenal 2-1 Leicester CityRECAP

The Emirates Stadium crowd saw a little bit of everything. The Gunners went down 1-0 on a controversially drawn and lethally taken penalty from Jamie Vardy, then saw a glimmer of hope when Foxes defender Danny Simpson took two quick and silly yellow cards. Theo Walcott found the leveler and Danny Welbeck, out for 10 months, returned to score the winner in the fourth of four minutes of stoppage time. The Gunners are now two points back of Leicester and nine goals of differential behind No. 2 Tottenham.

Aston Villa 0-6 LiverpoolRECAP

Having two of your brightest attackers in the lineup can do a lot for an offense’s potency, and Philippe Coutinho found Daniel Sturridge to open the scoring very early at Villa Park. A deluge of goals followed, and Villa will be wondering if there’s any way out of the drop zone after James Milner, Divock Origi, Nathaniel Clyne, Emre Can and Kolo Toure also scored for the Reds to bury the home side’s goal differential with its table status.

Manchester City 1-2 Tottenham HotspurRECAP

If Vardy’s penalty was controversial, Mark Clattenberg’s decision to award one to Tottenham was cataclysmic. Raheem Sterling‘s leaping block of a cross was deemed to be a handball, and Harry Kane beat countrymate Joe Hart with a PK. Super sub Kelechi Iheanacho equalized for the Etihad set, but fellow late game entry Erik Lamela sprung Christian Eriksen for a tidy match winner in the 83rd minute.

Standings

Team GP W D L GF GA GD Home Away PTS
Leicester City 26 15 8 3 48 29 19 7-4-1 8-4-2 53
Tottenham Hotspur 26 14 9 3 47 20 27 7-4-2 7-5-1 51
Arsenal 26 15 6 5 41 23 18 8-3-2 7-3-3 51
Manchester City 26 14 5 7 48 28 20 9-1-4 5-4-3 47
Manchester United 26 11 8 7 33 24 9 6-4-2 5-4-5 41
Southampton 26 11 7 8 34 24 10 7-2-4 4-5-4 40
West Ham United 26 10 10 6 40 31 9 5-5-2 5-5-4 40
Liverpool 26 10 8 8 38 36 2 4-5-3 6-3-5 38
Watford 26 10 6 10 29 28 1 5-3-5 5-3-5 36
Stoke City 26 10 6 10 27 32 -5 5-2-5 5-4-5 36
Everton 26 8 11 7 46 35 11 4-4-6 4-7-1 35
Chelsea 26 8 9 9 38 36 2 5-5-4 3-4-5 33
Crystal Palace 26 9 5 12 27 32 -5 4-2-8 5-3-4 32
West Bromwich Albion 26 8 8 10 24 32 -8 4-4-5 4-4-5 32
Bournemouth 26 7 7 12 30 44 -14 3-4-6 4-3-6 28
Swansea City 26 6 9 11 24 34 -10 4-5-5 2-4-6 27
Norwich City 26 6 6 14 30 50 -20 4-4-5 2-2-9 24

Newcastle United 26 6 6 14 27 49 -22 4-5-4 2-1-10 24
Sunderland 26 6 5 15 32 50 -18 4-3-6 2-2-9 23
Aston Villa 26 3 7 16 20 46 -26 2-4-7 1-3-9 16

Spurs’ Kane wants to win everything: “We are buzzing”

MANCHESTER, ENGLAND - FEBRUARY 14: Harry Kane of Tottenham Hotspur celebrates scoring his penalty with Danny Rose during the Barclays Premier League match between Manchester City and Tottenham Hotspur at Etihad Stadium on February 14, 2016 in Manchester, England.  (Photo by Alex Livesey/Getty Images)
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FA Cup, Europa League, Premier League? Yes, please. Harry Kane wants them all.

Kane converted a penalty kick as Spurs bested Manchester City 2-1 on Sunday at the Etihad Stadium, moving to within two points of the Premier League’s top spot.

[ MORE: Match recap | Watch Eriksen’s winner ]

The big striker was euphoric after Christian Eriksen also scored to help Spurs pick up the win, and said the media can decide what it wants about their chances; He knows they can do it.

From the BBC:

“That is up to you lot if we are challengers, we know what we are capable of. We are still in three competitions and we are taking them all very seriously. We are confident we can beat anyone in the league, you saw that today and we came away victorious. We are buzzing.”

Spurs have captured 15-straight points in making their run to second. There’s plenty of time before March 5’s big North London Derby with Arsenal, but we’re looking forward to it.

Before then, Spurs have a pair with Fiorentina in the Europa League, an FA Cup date with Crystal Palace, and PL fixtures versus Swansea and West Ham.

Title race on!

Three things we learned from Tottenham’s big win vs. Man City

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Tottenham Hotspur beat Manchester City 2-1 at the Etihad Stadium on Sunday in a tight encounter.

[ MORE: Arsenal beat Leicester late on ]

A controversial penalty kick got Spurs rolling and despite a Man City fightback, Christian Eriksen pounced late on to grab the winner on his birthday.

[ VIDEO: Premier League highlights

Here’s what we learned as the title picture becomes even more jumbled after an epic day where the top four all met one another.

AWFUL PK CALL COSTS CITY

There’s a debatable handball decision and then there’s the kind of decision which went against Man City on Sunday. At the start of the second half Danny Rose curled in a pretty innocuous cross from the left flank and Raheem Sterling jumped in the air with his back to the ball and was right on the edge of the penalty area. The ball struck his ribs and may have grazed his elbow but he knew nothing about it. PEEEEEPP! What. No way. He hasn’t. He has.

Referee Mark Clattenburg pointed to the spot and Man City’s players looked on in disbelief as the penalty was awarded. Take a look at the video below. It was incredibly harsh and swung the game in Spurs’ favor and overall the decision created a major talking point about what is and what isn’t a handball anymore.

Referees show a severe lack of consistency when awarding penalties for handball. Is it ball to hand? Does the arm have to be in an unnatural position? On and on the debate goes, and from his angle it looked like Clattenburg guessed that it hit Sterling’s arm rather than seeing it actually strike the arm. It cost Man City dear as Manuel Pellegrini‘s side have lost two on the spin at home against title rivals Leicester City and now Spurs. City are six points off top spot now with 12 games to go and they aren’t out of this. However, when you look back at big decisions at the end of the season this one could be the difference between them winning the title or not. That PK call and a huge late save from Hugo Lloris who took the ball off Nicolas Otamendi’s head could be pivotal. Sure, City look better at the back with Vincent Kompany returning from injury but there’s no doubt they’re the outsiders for the title after a seventh defeat of the season.

SPURS’ INTENSITY INFECTIOUS

They hunt in packs. They hunt together. And on Sunday, Tottenham’s players hunted down loose balls with more ferocity than in any other game this season. Snapping into tackles, in the first half City couldn’t get into any rhythm and despite the poor PK call from Clattenburg they deserved to win.

[ MORE: Arsenal fans go wild in USA after Welbeck’s winner

Over the course of the game Tottenham looked more comfortable on the ball, they believed in each other and Spurs secured a fifth-straight PL win at a venue where they had lost on each of the last five encounters. Mauricio Pochettino‘s team are showing a maturity beyond their years. Harry Kane stepped up and was ice-cold with his penalty kick, Mousa Dembele patrolled the midfield with power and panache and Eriksen’s winner was a prime example of the high-tempo approach Pochettino loves to employ. In the 83rd minute Yaya Toure tried to run forward from midfield and lost the ball with four Spurs players swarming him. Erik Lamela then ran at the hart of City’s defense and slipped through a perfect pass to Eriksen. On his birthday the Dane was coolness personified as he took a sublime first touch and slotted past Joe Hart to send the away fans wild. Spurs have only won the title twice in their history and the last came back in 1961. Now, with an easy looking schedule they could transform from the dark horses to the favorites. Pochettino’s player are hungry, have the best defensive record in the PL and have proven themselves in the big games this season.

NORTH LONDON TITLE TUSSLE

Okay, this is actually happening. With Arsenal beating Leicester earlier on Sunday both north London teams are now just two points behind the Foxes. Spurs sit second and Arsenal third as only goal difference separates the two rivals who have 51 points. When they meet at White Hart Lane on March 5 it will be an incredible atmosphere and it could well be a huge game in deciding which half of north London the title goes to on May 15.

[ MORE: Latest Premier League standings | Schedule ] 

When you look back at the history of PL title races, there have been only a few instances where direct crosstown or local rivals have gone head-to-head for the title. Man City and Man United have had a few title tussles since 2011 but the fact that two bitter rivals are going at it for the title will only add to the incredible unpredictability. This season it is closer than ever at the top and Spurs and Arsenal now have plenty of momentum as they head into the two week PL break. Get ready for plenty of talk of a “title tussle in North London” over the next 10 days or so.  It’s legit.