A ball, also known as ball, It is a ball, generally made from a flexible, hollow material, or otherwise solid, which is used in different games and sports (tennis, golf, football, volleyball, rugby, water polo, polo, among others).
The balls are mostly spherical, elastic and light, although, there are some exceptions such is the case of the rugby ball or american football who have a Oval shaped or as the case of the golf ball and field hockey ball that are stiff and heavy.
Meanwhile, in most games or sports that use ball, the mission par excellence turns out to be the manipulation and control of the ball with some part of the body: the head and the feet, in the case of soccer, the hands or arms, in the case of basketball, and then introduce it into the goal area, which will vary from game to game.
The leather ball is a Chinese invention and it dates from very, very distant time, 4th century BC. the Chinese stuffed them with bristles; Legend has it that one of the great rulers of ancient China, caked several hard roots into sphere shapes and covered them with pieces of rawhide; meanwhile, the first thing that was done was to play with it to pass it from hand to hand.
It should be noted that physical factors play an important role in influencing the movement of the ballTherefore, it is that over time and with the various advances in technologies, more functional materials have been varied to these with the aim of making them more conducive to the sports in question.
In the case of soccer, the regulation ball is made of leather or simile and has a perimeter of between 68 and 70 cm .; the mass varies from 410 to 450 g. and the inflation pressure of 0.6 to 1.1 atmospheres.
Another use of the term ball allows us to designate that ball of soft matter that is easily kneaded and that can consist of mud, snow, meat, among other options.
In the vulgar use of speech, the word ball is used with recurrence as synonym of testicle.
And there are also several popular phrases that contain the term, such is the case of: in balls (naked), turn the tables (to answer or refute someone with the same weapons), be up to the balls (to be really sick of something), make the ball (to flatter someone for a profit), be touching one's balls (no work / laziness).
