3 tonnes
Size 5 for top level rugby.
No. Rugby ball weight, dimensions and pressures are governed by the IRB (International Rugby Board). The regulation for this are on their site under the heading of Rules and Regulations
A rugby ball
Its a rugby ball
A Rugby Ball. there are no other names for it
Its called "A Rugby Ball" simple as that - There are different manufactures of these balls but they are all a rugby ball
how was the rugby ball originally made
A rugby ball
Richard Lindon, a leatherworker in Rugby, England, designed the rugby ball in the 1840s.
An American football is the same shape as a rugby ball. A football is slightly smaller and is more pointed whereas a rugby ball is rounder in overall shape. A football skin is rougher to make it easier to be carried and can be leather whereas a rugby ball is slightly smother for aerodynamics (kicking and passing ) of a synthetic rummer outer panelled skin and a silicone bladder which is inflated to give the ball its shape. The size, weight and construction materials of a rugby ball is very closely monitored by the NRL and IRB Boards.
You use a rugby ball to play rugby. It is shaped like an egg.
there isn't its just called a rugby ball