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A radically new configuration reduced the amount of panel touch points forming a smooth and perfectly round exterior that improved accuracy and control. Prior to the Teamgeist, the surface of World Cup match balls had notable differences depending on where a player would strike the ball due to seams, ridges and other imperfections where panels come together. The revolutionary propeller design of the Teamgeist minimized corners and created a smoother surface for improved play. The ball was designed with traditional colors of the German flag and was accentuated with the golden color of the World Cup trophy. 
The soccer is the world's most popular and widely watched game. Due to increasing technological advancement and demand for performance, the ball manufacturers have been developing new designs progressively. A traditional spherical football made of 32 leather panels stitched together in 1970s has become only 14 synthetic curved panels thermally bonded without stitches ball in 2006 and more recently 8 panels football in 2010. Despite being most popular game in the world, scan data is available on aerodynamic properties of footballs especially Jabulani, Teamgeist and Fevernova balls. The primary objectives of this study were to evaluate aerodynamic performances of these three soccer balls. The aerodynamic forces and moments were measured experimentally for a range of wind speeds. The aerodynamic forces and their non-dimensional coefficients were determined and compared.
In terms of durability, you can’t really go past Select. The polyurethane cover on the Numero 10 is tough enough to withstand dog bites and general wear and tear, but still feels nice and soft when kicked. Although this ball is a bit more expensive than other replicas, it comes with a two-year warranty for peace of mind when buying. It also retains its bounce very well over the years – perfect for practicing volleys and clearances.
If you are looking to teach your little one all about the game of soccer, than this Spalding Rookie Gear soccer ball is perfect. This particular soccer ball by Spalding weighs 25 percent less than most size three soccer balls to help your child build basic essential skills. Measuring 10 inches all around, this ball is specifically designed for young recreational players who age eight or under. This soccer ball has a composite machine stitched cover to ensure your kid will get years of play out of it. Your kid has the option to choose from five different color patterns, yellow and blue, yellow with blue and orange accents, purple and blue, green and blue, or pink. No matter what color your kid may want, this soccer ball is sure to stimulate their visual sensory to keep them focused on the game. https://www.youtube.com/watch?v=_TX8dExPIWc
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