Football is the most popular sport on the planet. However, before, people managed to create a spherical shell of an ideal shape, which could be played comfortably. But how do people sew a soccer ball in such a way that the seams remain inside?
A brief history of the soccer ball
The first balls appeared only in the 1855th year, created from rubber. They were much more reliable and could serve more matches. And after 7 years, an inflatable chamber was placed inside the shell.
Interesting fact: in 1872, the size and mass of soccer balls were officially approved. Prior to that, these parameters were random.
In 1888, the mass production of balls began. The technology gradually improved, and in the 1960s, soccer balls began to be made of synthetic materials.
In today's world, there are many companies that produce soccer balls using the latest technology. This allows you to create shells with different properties and appearance.
How to sew a soccer ball with seams inside?
In most cases, the outer shell of a soccer ball is stitched from 12 pentagons and 20 hexagons. The selected figures and their number make it possible to lay out an almost perfect sphere in which the camera is placed.
Parts are initially sewn together from the inside. Since they have not yet become a full-fledged sphere, it is not difficult to gain access to the inside of the material.Holes are made along the edges of adjacent shapes, into which two threads will simultaneously fit. During stitching, they are successively threaded into each hole according to the “cross to cross” principle. Then the lacing is tightened, tightly bringing both parts together. The ends of the threads are retracted inward or cut close to the ball.
When it remains to sew the last seam, the threads are passed through the existing holes, after which their edges are tucked inward. In past centuries, in order not to stitch the final slit, a wide cut was used with holes in which a regular lace was inserted. He pulled on like on ordinary shoes and tied in a knot. However, this method is considered the least reliable.
