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.

Ronaldo shows no sign of injury while hanging with Conor McGregor

instagram.com/cristiano/
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Cristiano Ronaldo may not be ready for the UEFA Super Cup, but he’s no longer limping around.

To explore the Real Madrid superstar’s Instagram is to see Ronaldo, sometimes clothed, hanging out with celebrities.

In the last couple weeks we’ve seen him with Eva Longoria, Jennifer Lopez, and now his “bro” Conor McGregor.

[ MORE: Who wins the League of Hate? ]

Wait, what?

Yeah, Ronaldo is friends with the MMA star, and showed no ill form (and no brace of any kind) in several posed photos with McGregor.

Although admittedly, McGregor’s IG game is a bit better: The Irish fighter posted a photo of himself sunning in his briefs with the caption, “I’m gonna get him on the Forbes list by next year. But I’m gonna get him on the tan by next week.”

Good luck with both, bro.

Great to see you bro!!💪🏽🔝

A photo posted by Cristiano Ronaldo (@cristiano) on Jul 24, 2016 at 3:48pm PD

Bruce pens letter to Hull fans: “Desperately wanted to make it work”

YORK, ENGLAND - JULY 23: Steve Bruce manager of  Hull City ahead of the pre-season friendly match between York City and Hull City at Bootham Cresent on July 23, 2014  in York, England. (Photo by Nigel Roddis/Getty Images)
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Many Hull City fans didn’t want Steve Bruce to leave the club, and this open letter shows why.

After leaving the club by “mutual consent” on Friday — it was first widely reported that he quit — fans protested at Hull’s game on Monday.

[ MORE: Who wins the League of Hate? ]

Bruce may’ve had his problems with Hull’s ownership, but he certainly got his supporters’ feelings right down to the core.

From the Hull Daily Mail:

My biggest regret is having to walk away but it was a decision I had to make for the sake of the club. The last 12 months have been very tough and it felt like the right step for the club to move forward in a different direction and with someone else in charge.

I desperately wanted to make it work this summer and be a Premier League manager again but, sadly, it wasn’t to be. Nevertheless, I’ve left Hull City with some fantastic memories that I’ll always cherish, including just eight weeks ago in the Championship play-off final at Wembley.

Class from the longtime boss, and we imagine he’ll have a job very soon if he wants it.

Report: Everton to activate release clause of Stoke’s Arnautovic

LIVERPOOL, ENGLAND - DECEMBER 28: Marko Arnautovic (1st L) of Stoke City competes for the ball against Seamus Coleman (2nd L) and Gareth Barry (1st Rof Everton during the Barclays Premier League match between Everton and Stoke City at Goodison Park on December 28, 2015 in Liverpool, England.  (Photo by Dave Thompson/Getty Images)
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Everton is going to activate Marko Arnautovic‘s $16 million release clause to bring the Stoke City striker to Goodison Park, according to a report out of Austria.

Stoke had been trying to sign Arnautovic to a contract extension, but the player was reportedly prepared to play out the final year of his deal.

[ MORE: Who wins the League of Hate? ]

The huge 27-year-old Austrian has been with Stoke since 2013, and broke through with 11 Premier League goals last season.

Arnautovic would give Everton support behind Romelu Lukaku, and insurance in case the Toffees do wind up selling their Belgian striker. Everton also has Arouna Kone as a potential target forward, but Oumar Niasse is expecting to leave after less than a year at Goodison Park.

Chelsea wins the League… of Hate; Bournemouth, Leicester not hated

SOUTHAMPTON, ENGLAND - FEBRUARY 27:  Diego Costa of Chelsea celebrates his team's second goal during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on February 27, 2016 in Southampton, England.  (Photo by Clive Rose/Getty Images)
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A family of English newspapers conducted its annual survey of which teams are the most hated in the Premier League, and there’s a new champion.

Manchester United has dropped to second in the table to Chelsea in what the Manchester Evening News called the “League of Hate”.

[ MORE: Rooney’s England position not set ]

According to the MEN, 10,000 fans were quizzed on their love and hate:

A national survey asked fans of each top flight club which sides they hate, and which they love, and the west London club came out as the most disliked club overall.

United, who won the dubious accolade last year, have been revealed to be the next most reviled side.

It’s no surprise that the league’s more successful sides sit atop the table while newer PL clubs like Bournemouth and Burnley are not reviled. That said, Leicester’s dream story has them 19th. How much more success do they need to have before shooting up the hate table?

Here’s the Top Five, and all results:

1) Chelsea
2) Manchester United
3) Liverpool
4) Manchester City
5) Arsenal