Why can't football be made into a circle

Why didn't the football be round
Why is football oval rather than round like football or basketball? The shape of American football is derived from English football. The shape of rugby was round at first, just like basketball. Later, it was found that the oval ball was easier to run with the ball, so it was changed into an ovalWhy is football round? Why isn't football
Round (spherical) is the most acceptable to the human body. The arch and instep of the foot are also curved. The contact with the ball is the most reasonable and the force is the most uniform; It is convenient for people to judge its movement direction. Rugby is not round. At that time, the ball used by the students in the game was blown up with a pig bladder in the shape of a drum in the middle and a tip at both ends. IIWhy is football a round ball and football an ellipsoid
The oval shaped football was also developed gradually. American football was round before, but the round ball was not convenient to run and catch with the ball, so it was changed into an oval shape, which can increase the viewing degree of the gameWhy isn't football round
Because the first football is not a standard olive shape. The outer skin of football is cow leather, but the inner bladder is a pig's bladder. After being inflated, the bladder of a pig is not round, but nearly olive shaped. If English is good, just read it http://www.rl1908.com/resources/Rugby_Ball 。Watching sports games, why is football so sharp at both ends
In fact, the shape of football was round at first. Later, it was found that the shape of the two tips of the ellipse was easier to hold and run than that of the circle, and it was not easy to roll down, which could better reflect the level of athletes. Therefore, the round ball was changed into an ellipse with a circle in the middle of the two tips. When football was introduced from Europe to North America, the shape of the ball improved slightlyWhy is football oval
The reason why football is oval must be that it is formed in the continuous development. If it is round, you can't hold it well
Why is football oval? Football rules and what is a foul
Why is football oval? The first point is that football is mainly about passing and running with the ball. In order to increase the excitement, risk and difficulty, the football is made into an oval shape so that once the ball lands, it is difficult to control, and it is difficult to predict the changes in the field after landingWhy should football be made into a shape with two sharp ends and a wide middle
It is to make the ball bounce irregularly on the ground and increase uncertainty. Football is a kind of ball games, which is popular in Britain, New Zealand, the United States, Canada, Australia, Japan and other countries. 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. RagWhy is football round? Why isn't football
The round (spherical) shape is most acceptable to the human body. The arch and instep of the foot also have radians. The contact with the ball is the most reasonable and the force is the most uniform; It is convenient for people to judge its movement direction. Rugby is not round. At that time, the ball used by the students in the game was blown up with a pig bladder in the shape of a drum in the middle and a tip at both ends. IIWhat shape is football
American football is a long ellipsoid with a length of about 27.94 ~ 28.58 cm, a circumference of about 53.34 ~ 53.98 cm at the center of the sphere, and a weight of about 396.89 ~ 425.24 grams. Although the sphere is olive shaped, it is not as close to the standard oval as rugby, but has a "swim bladder body" with micro tips at both ends