When a tournament is held (like the FIFA World Cup), the sponsor of the event will design a brand new ball. These are official match balls – they’re used by professionals during real matches. They are designed to the highest possible build quality, have textured surfaces to improve stability in flight, and feature thermally-bonded panels for durability.
Despite the similarities with the Brazuca, the few differences between this ball and what players have gotten used to over the last four years will have an impact on play, says Firoz Alam, an aerodynamics engineer at the Royal Melbourne Institute of Technology in Australia, who has also performed wind tunnel tests on the Telstar 18. “When the player is making a short pass, they have to push a little harder, because at less then 60 kilometers per hour [or 37 miles per hour]it has more flight resistance than the Brazuca,” says Alam. The mid-range passes and corner kicks that gave the Jabulani so much trouble have been resolved. Compared to the Brazuca, the Telstar 18 is also more aerodynamically efficient in the 40-50 mile an hour range, so Alam says players will actually have to kick a little softer or they’re likely to overshoot. Over 55 miles an hour the two balls will feel very similar.
Latex bladders are used in high-quality balls. These kind of bladders are soft and provide good feeling. They offer better response and bounce than Butyl bladders, but the downside of this kind of bladder is they don’t hold the air for too long. As a result, they require filling more frequently. Air escapes due to micropores on the cover, but nowadays some balls are constructed with carbon latex bladder to help to close these micropores. As a result, the balls can hold air for a longer period.
I have about 30 soccer balls- price listed is per ball. I have more than the 12 pictured- some doubles of the champions league balls, two of the unwrapped Brine ball, 5 or so futsal balls. Some are worth more than 25, some less. Just make me a good off and tell me which ball you want! Keep in mind when you offer that I am paying most of the shipping already. Balls will ship deflated. I will reconfirm that all hold air and make sure they are cleaned off before shipping. There is only one ball in the lot that has a gouge/ panel issue. All aside are in good playable shape.
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One thing which customers often complain about soccer balls is their poor air retention ability. After a few days on the field, the ball starts to deflate which serves as a big problem for anyone who has to use it on a daily basis. However, there is no such thing with the Top Glider as inside this ball is the butyl bladder which is becoming a norm with the majority of the Adidas soccer ball’s nowadays for better air retention.
A Futsal ball is basically an indoor soccer ball used for playing 'Futsal', a term literally meaning 'indoor football'. Futsal is a kind of soccer played on a basketball-sized court using a smaller, heavier, less bouncy ball, and demands many of the same skills as outdoor soccer. Size-wise, FIFA-approved futsal balls are just shy of 25 inches in circumference, slightly smaller than a Size 4 soccer ball. The ball is created with less bounce to facilitate indoor play.
Changes in temperature will also affect the inflation level of the soccer ball. Extreme heat or extreme cold will alter the shape of the bladder and this will affect the integrity of the soccer ball. Although it doesn’t seem like you could reach an extreme temperature that could do this to a soccer ball, just leaving a ball in your trunk or the back of a van on a hot Summer’s day will do it.
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Despite the similarities with the Brazuca, the few differences between this ball and what players have gotten used to over the last four years will have an impact on play, says Firoz Alam, an aerodynamics engineer at the Royal Melbourne Institute of Technology in Australia, who has also performed wind tunnel tests on the Telstar 18. “When the player is making a short pass, they have to push a little harder, because at less then 60 kilometers per hour [or 37 miles per hour]it has more flight resistance than the Brazuca,” says Alam. The mid-range passes and corner kicks that gave the Jabulani so much trouble have been resolved. Compared to the Brazuca, the Telstar 18 is also more aerodynamically efficient in the 40-50 mile an hour range, so Alam says players will actually have to kick a little softer or they’re likely to overshoot. Over 55 miles an hour the two balls will feel very similar.
On the other hand, replicas (sometimes called training balls or gliders) are designed to be just like the official match balls but are much cheaper. Their panels are often stitched rather than thermally-bonded and are made of a different material. However, they’re not necessarily less durable than official match balls. So, they’re the recommended option for most players. https://www.youtube.com/watch?v=j2Xn84L3Kcs
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