the world of various newspapers

Check the siteThe referee should carefully check the venue. Before the start of the game and at halftime,Camiseta del Real Madrid, the fuzzy line (especially the goal near the boundary) to make the relevant personnel to draw. As a result of rain and snow in the muddy field, boundary is not clear, in prescribed positions of the surrounding ground plug 10 flags, flags from the line is 1 meters, the same specifications and the corner flag, in order to help the referee to judge.Football introductionMaterial scienceFootball is round, made of leather or other suitable material, usually for 12 pieces of black pentagons and hexagons fabric 20 pieces of fabric together. Ball circumference,Camiseta R.Madrid, shall not exceed 70 cm (28 inches), shall not be less than 68 cm (27 inches).StandardFootballFootball's weight, at the beginning of the game, not more than 450 grams (16 ounces), shall not be less than 410 grams (14 ounces). Ball pressure,

at sea level is 0.6 to 1.1 atmospheric pressure (per square centimeter 600 grams to 1100 grams per square inch = 8.5 to 15.6 pounds).Replacing substandard ball: if in the game, the ball rupture or substandard, stop the game. Replacement of standard ball, the ball rupture location, restart with a dropped ball game. If the ball is inside the goal area, the dropping of the ball is in place on the goal area line parallel to the goal line, the closest match to stop when the position of the ball location. If not in the game, such as midfield kick-off, goal kick, corner kick,Real Madrid Camisetas,Camiseta R.Madrid, free kick, penalty kick or throw the ball at the entrance, ball rupture or substandard: in accordance with the rules to restart the game. Game time, not after the referee agreed to, can not be replaced with the ball game.FIFA approved standard:Length: 68.5 cm 69.5 cm between.Weight: from420445g.Motion.Football is the world sports sports movement is the most influential, it is the first game in the world "(BCW), CC each have 2 team, each team consists of a maximum of 11 members. A wonderful football match, attracts millions of viewers, it has become the important content of TV programs, the reports about football, the world of various newspapers, football has become an indispensable part of people's life. According to incomplete statistics, the world often participate in the competition's team of about 800000, registered athletes about 40000000 people, of which about 100000 people occupation athlete.From the beginning of 1900 second Olympic Games, football was listed as one of the Olympic events (women's football game in 1996 Atlanta Olympic Games as an official event), but it does not allow occupation athletes. In May 21, 1904, FIFA was founded in Paris. Since 1930, held every 4 years in World Football Championships (also known as the World Cup football match),Real Madrid Camisetas, the match was cancelled on occupation athlete restrictions.In addition to the eleven formal system of football, football has seven people made the football, Futsal and beach soccer. The age of U15, U17, U19,