Discover the scientific elements behind the 2018 World Cup ball

Contrary to what the goalkeepers have complained about, scientists have different views.

Every World Cup season, the ball is scrutinized under different angles. Adidas has been making the ball for the biggest football season on the planet since 1970 until now, and they are always doing their job, bringing new curves to the world.

The ball this year has started to be criticized by the world's top goalkeepers and so hard to get stuck. However, scientists say that this beautiful sphere is quite stable, surpassing the predecessor of Jabulani - the official World Cup 2010 ball.

The ball this year is called Telstar 18.

This Telstar 18 is a reminder to football-loyal viewers that the first ball Adidas made for the World Cup, the 1970s took place in Mexico. The first black and white globe has such a special color that it is easy for the audience to watch on a black and white TV what is happening on the screen.

The Telstar 18 has a white, black and gray color and the letters are yellow.

Eric Goff, a professor of physics at Lynchburg University, Virginia, is one of the ball analysis members for the 2018 World Cup has something to say. When tested in the wind tunnel and compared to the 2014 World Cup Brazuca, Telstar 18 is affected by more air resistance.

This means that the Telstar 18 will be able to fly shorter distances, namely reducing the range by about 8 to 10% compared to the Brazuca, when it is fired and flew at more than 90km / h.

"This will not have to be good news for long-range players and need a lot of force to shoot," Goff explained.

But this is good news for goalkeepers, because the ball at high speed will "go to golf slower than the Brazuca left in 2014".

Like the Brazuca, Telstar 18 has 6 pieces. Its predecessor, the Jabulani, has only 8 pieces, and both are much smaller than the traditional ball with 32 pieces.

Researcher Sungchan Hong from the science department of University of Tsukuba, Japan, said that the test robot had the result that "the flight of Telstar 18 is very stable compared to the previously used balls".

Telstar 18 will not encounter zig zag status.

"In other words, it is possible to rely on the effectiveness of fixed situations like penalty kicks or corner kicks, or a quick shot from an average distance."

He also added that he did not think " the goalkeeper will be at any disadvantage".

Compared to the Jabulano, Telstar 18 will not meet zigzag status. The nightmare for goalkeepers is now over.