Science Point. Why is the rugby ball oval?

Science Point. Why is the rugby ball oval?

The rugby ball's oval type is fun, but when you want to shoot in, it goes everywhere. So why?

Where does the oval form of rugby ball come from?
Hint, it's marked on the ball!
Where does the oval form of rugby ball come from? Hint, it's marked on the ball! (© pixabay)

Then immediately tell you that there were no synthetic materials at that time. So we used swollen pork blisters to play ball in the playgrounds.

in 1835shoemaker William Gilbert made balloons in a small shop on 19 High Street in the city Rugby England.

Depending on the nature of pigs, the shape and size of the balloon varyand it is especially hyper-resistant. The bladders were swollen and then expanded to be wrapped in hand-sewn leather.

Balloon surfaces

The English shoemaker gradually realized that the ball often escaped from the younger players. He had the idea of ​​adapting it to create the foul form. No more balloon problem that runs away, tackles the ball against you is much easier.

Also read: Women & # 39; s Rugby Super Series. The composition of France's XV against England

in 1877, the English Rugby Federation adopts the oval shape of the ball, which is not yet up to the standards of the one we know now. in 1931, the circumference of the balloon falls further because Admiral Sir Percy Royds wants to promote the handling of the ball.

Synthetic Revolution

The arrival of synthetic to produce balloons during the 90s will allow Reduce the number of hand errors and improve footwork.

The leather ball is very resistant but smooth and therefore smooth in addition to being permeable to waterwhich will increase the weight of the ball during the match.

Today, the rugby ball has features that are regulated byIRB (International Rugby Board) :

  • "The ball must be oval and consists of four panels.
  • The balloon's dimensions are 280-300 mm long, 580-620 mm in width and 740-770 mm in circumference in length.
  • The ball must weigh between 410 and 460 grams.
  • Small size balloons can be used for matches between young players.
  • The ball must be of leather or suitable synthetic material and can be treated to make the balloon waterproof and easier to handle.
  • The air pressure at the beginning of the game must be 65.71 to 68.75 kg pascals, or 0.67 to 0.70 kg per pascals. Square centimeter.
  • Saving balls may be available during a match. "

Also read: Rugby: The Villefranche-de-Lauragais club announces its first recruits and several starts

Voila, you know everything now. Walk and shine in society.

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