Demo Blog

Rugby ball

by Lahiru Yapa on Nov.22, 2009, under

The first references made on the shape and size of the rugby ball were not made until late 1890s. In 1892, the rugby ball had a length of 11 to 11 ¼ inches, a circumference (end to end) of 30 to 31 inches, and a circumference in width of 25 ½ to 26 inches. The rugby ball had a weight of 12 to 13 oz and was hand-sewn with eight stitches to the inch. One year later, there were adjustments made regarding the weight of the ball, which has been changed to 13 to 14 ½ oz. The next regulation set in 1931 established a reduced width to 24 to 25 1/2 inches and the weight was increased to 13 1/2 to 15 ounces in 1931.[13]
The International Rugby Board established the size and shape of the rugby ball under Law 2. So currently, an official rugby ball is oval and made of four panels, has a length in-line of 280–300 millimeters, a circumference (end to end) of 740–770 millimeters, and a circumference (in width) of 580–620 millimeters. It is made of leather or suitable synthetic material. It may be treated to make it water resistant and easier to grip. The rugby ball may not weigh more than 460 grams or less than 410 and has an air pressure of 65.71–68.75 kilopascals, or 0.67–0.70 kilograms per square centimeter, or 9.5–10.0 lbs per square inch.[14] The existence of the spare balls is allowed under the condition that the players or teams will not seek advantages by changing the ball. The IRB also states that smaller sizes may be used in games between younger players.http://lahirumanagement.tk/
0 comments more...

0 comments

Post a Comment

About Me

My photo
මුලික අධයාපණය ‍ෙකාළඹ මහනාම විද්‍යාල‍ෙයන් ලබා වර්තමාණ‍ෙය් වරලත් ගණකාධිකාරි ආයතනෙය් සිසු‍ෙවක් වශෙයන් කටයුතු කරයි තවද කාටර් දි ‍ෙකාස්තා සහා සමාග‍ෙමි විගණන නිලධාරිෙයක් වශයෙන් ද කටයුත‍ු කරයි
Powered by Blogger.

Looking for something?

Use the form below to search the site:

Still not finding what you're looking for? Drop a comment on a post or contact us so we can take care of it!