Elements of the football that today are tested are the deformation of the football when it is kicked or when the ball hits a surface. Two styles of footballs have been tested by the Sports Technology Research Group of Wolfson School of Mechanical and Manufacturing Engineering in Loughborough University; these two models are called the Basic FE model and the Developed FE model of the football. The basic model considered the ball as being a spherical shell with isotropic material properties. The developed model also utilised isotropic material properties but included an additional stiffer stitching seam region.
Soccer balls also have various sizes that you can choose from, and what is best for you will depend on how old you currently are. Soccer balls come in different constructions in the inner bladder and the lining, which can contribute to their responsiveness on the field. Panels on a soccer ball are also important since they can influence a ball’s flight characteristics, and the control a player will have on the field. Like any other sporting equipment, picking the right soccer ball, if you are very meticulous, is something that will need some key points to consider.

This is the perfect ball for young children to practice drills before any competitive soccer game. Besides, if you love anything “USA,” you’ll surely want to buy this colorful and shiny ball by Vizari. It has a pocket-friendly price tag, and you’ll truly feel your money’s worth when you buy it. It comes deflated and sells in three different sizes. The ball is pretty durable and can be used on most surfaces to practice drills.
In early FIFA World Cups, match balls were mostly provided by the hosts from local suppliers. Records indicate a variety of models being used within individual tournaments and even, on some occasions, individual games. Over time, FIFA took more control over the choice of ball used. Since 1970 Adidas have supplied official match balls for every tournament.[19]
This particular indoor ball has all the qualities that make it ideal for an indoor soccer ball. The exterior uses a soft felt material. The panels of this size 5 indoor ball are hand stitched which makes it more durable than machine stitched panels. Its bounce is not too high which sits well with the requirements of an indoor soccer ball. It is not too bouncy or light but it flies rather well when kicked. This gives the player ample control during a session. It has a comfortable texture that’s pleasant to hold, for a goalkeeper and comfortable for footwork especially if the player is barefooted. Has a bright color that makes it visible during a game. Players can easily keep track of it, especially in an indoor setting.
Footballs have gone through a dramatic change over time. During medieval times balls were normally made from an outer shell of leather filled with cork shavings.[4] Another method of creating a ball was using animal bladders for the inside of the ball making it inflatable. However, these two styles of creating footballs made it easy for the ball to puncture and were inadequate for kicking. It was not until the 19th century that footballs developed into what a football looks like today.
In 1838, Charles Goodyear introduced vulcanized rubber, which dramatically improved the football.[5] Vulcanisation is the treatment of rubber to give it certain qualities such as strength, elasticity, and resistance to solvents. Vulcanisation of rubber also helps the football resist moderate heat and cold. Vulcanisation helped create inflatable bladders that pressurize the outer panel arrangement of the football. Charles Goodyear's innovation increased the bounce ability of the ball and made it easier to kick. Most balls of this time had tanned leather with eighteen sections stitched together. These were arranged in six panels of three strips each.[6][7]
What are the different types of soccer balls? Should I buy an expensive one, a middle priced one or a cheap one? What kind of balls are adequate for my needs?  Most soccer balls can be divided into three different categories, professional match balls, match balls, and practice balls.  The type you need of course depends on how and where you want to use the soccer ball. For more information on types of soccer balls, click here. 
Size 5 is the official size for professional matches. Therefore, this ball is only available in this size. Do not use this soccer ball on concreted areas. Its unique rubber uses Puma Airlock Valve Technology (PAL) in order to facilitate proper airlock technology. This ball features Perimeter Balance Technology (PBT) which enables it to maintain impressive flight characteristics.
This Bend-It soccer ball is designed with training in mind. It’s a regulation size 5 soccer ball which means you’ll train with the same weight and feel as the professionals! It offers a seamless, thermo-bonded surface that’s 100% Polyurethane. You can train with this ball for a long time without worrying about it wearing out prematurely. This design also means no matter how hard you play, your ball will maintain its perfectly round shape. So, when you train you are training with the same feel each time and are bound to perfect your moves!
The soccer ball has gone through various changes just as the football game. As opposed to yesterday’s football ball that had stitches and seams and the classic black and white design, today’s soccer balls are designed with the latest technology that lets the ball bend more, fly quicker and also dip harder. Besides, they are quite soft that they let players kick the ball further without risking injuries. https://www.youtube.com/watch?v=DGp37du0xbQ
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