Football pitch black Technology what are the rules of football

What are the rules of football
Football is also called American football. Here are the detailed rules of football. The field and players of American football are usually nicknamed barbecue rack, because the style of the marking line on the field makes the field look like a rack that can help food be roasted on the fire. The game is played on a 120 yard (110 meter) long and 53 1/3 yard (49 meter) wide courtHow does the American football and baseball field share
It is impossible to be perfect. The requirements of the two venues are completely different, so they can only adjust each other. The football field is similar to the football field, so we can barely draw a rectangular field in the baseball field for football matchesName and function of each line in American football field
The football field is also called "gridiron" because of its shape and lines. Let's explain it from the outside to the inside: the direction of the game is from left to right, or from right to left, not from bottom to top. After understanding this, the rest is easy to explainWhat are the specifications of football field
5. The site is 109.7m long and 48.8m wide. The two end areas are 9.1 meters deep. 6. All team members and caddies must wear recognizable uniform clothes. 7. All clubs must use standard sideline signs. Benchmarks must be used for scoring line and sideline marking. 8. In order to avoid confusion of scoring line and sideline, the courtWhy do football players paint their faces
The thing painted on the face of American football players in the world is called black eye ointment, which is a special ointment applied to the most prominent part of cheekbones to prevent reflection. In some stadiums, the sun or indoor lights are relatively strong, and the strong light on the cheekbones will be reflected into the eyes, affecting the line of sight. Black paint can reduce the reflectionIs football a higher level than basketball
Generally speaking, all sports are equal, and there is no question of whether they are high or not. But we generally think that golf is an aristocratic sport, so it is understandable. I think the reason why football is superior to basketball now is that football, like golf, has too high requirements for the fieldWhy is rugby popular in North America not popular all over the world
First of all, football itself is divided into many different categories, the United States, Britain and Australia. There are many differences. Americans in particular, first of all, you can see that American football has a very heavy imprint on American culture. Compared with the internationalization level of basketballWhat are the high technologies in NFL
Now this technology is Pediatrics, but the video camera used more than 50 years ago was still videotape, not to mention slow motion, it is difficult to rewind it. In 1963, CBS first installed the then primitive replay technology in the college football live broadcast, and the equipment weighed 1300 poundsWhat are the requirements for field equipment in football
It originated in rugby, England in 1823. It was originally called rugby football, or rugby for short. Because it is like an olive, it is called rugby in China. Rugby is a city in Central England. There is a Rugby School there. It is the birthplace of football. The range within the stadium boundary does not include the sideline and the end line itselfWho can interpret football. What's the point? It feels too violent. Is it just because of the fanaticism of the fans
Rugby football originated in England and was originally called rugby football. Because its sphere is very like an olive, it is called "football" in China. Rugby is actually the name of an English town. There is a public school called Rugby School in this town