Why should the football field face north and south?

Speaking of football, some people will talk about it in Kan Kan, but in China, many people just sigh with their mouths curled. Although the performance of the men's soccer team in China is really unsatisfactory, the women's soccer team in China is very competitive, so there is no need to completely deny the football in China. Although the football in China is not so good, there are still many football fans, so everyone must have found a question: Why does the football field face north and south?

First, the earth rotates and revolves.

The earth is divided into two kinds of movements, rotation and revolution. Rotation refers to the rotation of the earth around its axis from west to east, which makes the sun rise and set in the west. During the revolution, the earth moves around the sun in a certain orbit, which makes day and night alternate. If the football field is east-west, the sun will shine on the athletes who attack eastward in the morning and attack westward in the afternoon. Only the north and south football fields can avoid the sun's stimulation to the athletes' eyes, and can not affect the athletes' normal play in the competition.

Second, the influence of the audience in the stands.

If the sports ground is north-south, then the audience's line of sight in the east-west stands is balanced, because the audience can see the games at both ends in a balanced way, and the watching effect is excellent. But if the audience watches the game in the north-south direction, it will cause visual errors, so the audience is mostly distributed in the east-west direction. In addition to giving the audience a good viewing effect, it can also block the direct sunlight in the east and west directions to a certain extent, and once again avoid the interference of the athletes from the sunlight.

It must be said that even if a thing has many shortcomings, intelligent human beings will try their best to minimize such shortcomings.