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How is a soccer ball put together?
Panels can be either stitched, glued or thermally molded together:
- Stitched. The highest quality balls are stitched with a polyester or similar thread.
- Glued.
- Thermally Molded – The new World Cup 2010 Jabulani Ball and the Roteiro ball have panels that are thermally molded together.
What structure is a soccer ball?
Most modern Association footballs are stitched from 32 panels of waterproofed leather or plastic: 12 regular pentagons and 20 regular hexagons. The 32-panel configuration is the spherical polyhedron corresponding to the truncated icosahedron; it is spherical because the faces bulge from the pressure of the air inside.
Is soccer ball a compound?
The covering of the ball is made of six polyurethane panels, which are thermally bonded together. Polyurethanes are built up from compounds called isocyantes and polyols. The middle parts of these molecules can be varied to give different polyurethanes with differing properties.
How many seams are on a soccer ball?
An optimally round soccer ball consists of 32 panels made up of 12 pentagons and 20 hexagons. The 32 panels are sewn together by hand using 630 double stitches and 60 corner stitches and are closed off – especially for SELECT – with a doubleknot. The ball lasts longer this way.
What are soccer balls made with?
1 Gathering and Processing Materials Soccer balls are made both natural and man-made materials, including: Plastic, from petroleum Rubber, from plants or synthetic Cotton, from plants Animal products, including leather These materials must be processed in factories before they’re made into a ball.
What is a soccer ball shape called?
truncated icosahedron
Twelve pentagons and 20 hexagons form a figure known to mathematicians as a truncated icosahedron, to chemists as the buckminsterfullerene molecule—and to nearly everybody else as the standard soccer ball.
What elements are in a soccer ball?
Soccer balls are made with four different sections. First is the bladder made of latex to hold the air. The second part is the lining, which is made of a cotton or cotton/polyester mix. Next is the cover, which is composed of a synthetic leather, or PVC.
How is chemistry used in football?
The ball itself is a marvel of chemistry. The ball’s internal bladder is typically 98% polyisobutylene and 2% isoprene. The process of conditioning the ball’s leather can be intense and involves tanning raw cow hide several times.
Are soccer balls round?
A soccer ball is a very special object, though: The ball is round. A sphere is always seen with an exactly circular outline, at any velocity, in any distance and for any line of sight.
Where is the soccer ball from?
The history of the soccer ball dates back to ancient times. From a couple centuries BC to about 200 AD, the Chinese used balls made from animal skins in a game called ‘tsu chu’, in which players had to pass them through a net stretched between two poles.
Who invented soccer ball?
Charles Goodyear was the man who invented the first soccer ball, when he designed and made the first round vulcanized rubber soccer ball. Prior to this, balls pretty much depended on the shape and size of the bladder that was extracted from the pig so they weren’t entirely round.
What are the parts of a soccer ball?
Soccer balls have 3 main components. The very inside material, the bladder, holds the air and is designed to maintain the proper soccer balls air pressure. Surrounding the bladder is usually one or more liners and the outside cover is made up of a durable cover made to handle the outdoor environment and frequent kicking.
How many soccer balls do you need to play a game?
Two soccer balls are needed. Give one of the two balls to each of the two lines that are on the same side of the square. Decide on set time for each round. The passing pattern starts with one of the soccer balls being passed to the player in the middle.
What are professional/premium match soccer balls?
Professional/Premium Match Soccer Balls are developed with top professional clubs to maximize players natural abilities and skills. They are FIFA-approved for use at the highest professional and international levels and designed for performance, exact specifications, great accuracy, speed and control.
What is the size and weight of a standard soccer ball?
Size and weight Regulation size and weight for a soccer ball is a circumference of 68–70 cm (27–28 in) and a weight of between 410–450 g (14–16 oz). The ball should be inflated to a pressure of 0.6 and 1.1 bars (8.7 and 16.0 psi) at sea level. This is known as “Size 5”.
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