What's the difference between the football used in the World Cup and that we play?
Modern football, which originated in Britain, has the reputation of "the world's first sport". It is the most influential single sport in the global sports field. The standard football match consists of 10 players and 1 goalkeeper from each side of the two teams, with a total of 22 players. Fighting, defending and attacking on a rectangular grass court. The rule of the game is to shoot the football into the opponent's goal, and each goal will get one point. When the game is over, the team with more points will win.
The football we usually use mainly has three kinds of materials:
1. PVC material: it is cheap, but severely affected by climate, easy to deform and crack in winter.
2. PU material: it is used in most football and basketball. Difficult to affected by temperature and not easy to deform.
3. Leather material: it’s price is highest, easy to absorb water, easy to deform if not good care of it.
The football world cup use:
It is made of a kind of macromolecular compound called polyurethane. Polyurethane has the advantages of shock absorption, resilience and good mechanical properties. It also uses the latest design of textured synthetic leather. The sphere is composed of 20 speed shell modules, which adopt triangular shape and bending design, greatly increasing the flight speed of the football in the air. In addition, a central chip is installed inside the football to record the trajectory of the football movement, which is then submitted to the AI system for integration and analysis.
Besides the football material is environmental friendly and has it's advanced technology, the world cup stadium also has it's own advantages. It is a sustainable stadium. As one of the venues of the 2022 World Cup, the 974 Stadium may "no longer exist" after the World Cup. This is because the 974 Stadium is the first fully removable stadium in the history of the World Cup. The stadium is built with containers and modular steel frames, of which 974 represent 974 recyclable containers.
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