This year, the ball shouldn’t have that kind of impact on which team wins the World Cup. In wind tunnel tests, Goff found that Telstar 18 has a very similar aerodynamic profile to the 2014 Brazuca ball, which flew without the wobbles of the Jabulani. The Jabulani was the first ball to have six seams and despite having a roughened surface, it was too smooth, says Goff. When the Brazuca was released, it had 68 percent more seams than the Jabulani to help change the airflow around the ball. The Telstar 18 is even more improved. Instead of transitioning to laminar flow in the middle of free kicks, Goff found that the Telstar 18 goes through its drag crisis at a lower speed of 38 miles an hour.

This size ball, the smallest aside from mini-balls not used for real practices or games, weighs 10 oz. and can be used for players under 8. The No. 3 ball is only 24 inches in circumference and thus doesn't come up as high on the leg as an adult model. You don't need to provide a match-quality ball for your young player, write the authors of "The Complete Idiot's Guide to Coaching Youth Soccer."


We all should keep in mind that the construction of a standard soccer ball is different than a street soccer ball. When you are playing on street or hard surface, you need a rough and tough ball. The shape needs to be spherical, and the cover/panels should be made out of rubber. They need to be scratch resistant as well. Not only that, if the panels are not hand-stitched with the high-quality seam there is a big chance they will not last long.
In 2010, the infamous Jabulani balls for the World Cup in South Africa transitioned from turbulent to laminar flow between 50 and 45 miles per hour, right at the speed for corner and free kicks. The transition between these different types of flow causes even more drag on the ball, which caused the Jabulani to wobble in the air and drop in ways that players weren’t expecting.

Soccer — or football as it's known around the world — is arguably the most loved sport on Earth. Although Americans still aren't as enamored of the sport as the rest of the world is, teams around the country are stealing hearts and minds, and Americans are getting into the game. For years, soccer has been a sport played by kids, college students, and ex-pats, but it's now being cheered in stadiums and watched on national TV. https://www.youtube.com/watch?v=DGp37du0xbQ

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