The table tennis ball is a hollow sphere of celluloid or similar plastic, 40 millimeters in diameter and 2.7 grams in weight.
Red for first-class and most club cricket, white for one-day matches (and, experimentally, women once used blue balls and men orange ones in 20-20 ABN Amro cup played at National Stadium Karachi). It weighs 5Â1/2 ounces ( 5 ounces for women's cricket and 4Â3/4 ounces for junior cricket).
Made of a plastic material, 40mm in diameter, with a weight of 2.7g.
noun - A sphere and all of its inside points. Defined as all points = radius r away from a center point, in three dimensions. In mathematics, this term refers to the interior of an n-dimensional sphere. It is the realmspace analog of the disk in planespace and gongyl in tetraspace. See the chart under rotatope.
A sphere together with its interior.
Smaller and considerably harder than a rugby ball, the American football is sphere-shaped and weighs between 14 and 15 ounces. The ball is covered in a grainy, tan-colored leather and is often referred to as a pigskin.
The basketball is 9 1/2 inches in diameter and weighs 20 to 22 ounces.
Field hockey uses a ball of solid plastic, with a circumference of 8 13/16 to 9 ¼ inches, weighing between 5 1/2 and 5 3/4 ounces.
The ball used in water polo is a pressurized sphere weighing 400 to 450 grams. For men's play, it is .68 to .71 meters in circumference and inflated to 13-14 pounds of pressure. For women's play, it is .65 to .78 meters in circumference and inflated to 12-13 pounds of pressure.
Weighs 14-16oz and has a circumference of 27-28 ins. Made of rubber or leather.
White and made of plastic or wood. It weighs four and a half ounces and is three and a half inches in diameter.
a "solid sphere"; the interior of a sphere (open ball); a sphere and its interior (closed ball);
The ball is made from layers of string and rubber surrounding a cork centre. Softball is played with a bigger ball.
The modern golf ball must be at least 1.68 inches in diameter and weigh no more than 1.62 ounces. There are several different types of construction, from a one-piece molded rubber ball to multi-layer balls that have liquid or solid centers wound with rubber thread. The covering is hard rubber or synthetic material covered with surface indentations, known as dimples.
the cricket ball itself, made of cork wound with string, covered with leather. the event of a bowler bowling the ball towards the batsman; synonym for delivery.
A FIFA approved ball should have a circumference 27 to 28 inches and weigh 14 to 16 ounces. The ball should be inflated 8.5 to 15.6 PSI.
In mathematics, a ball is the inside of a sphere; both concepts apply not only in the three-dimensional space but also for lower and higher dimensions, and for metric spaces in general.
Ball (rhythmic gymnastics) is made of either rubber or synthetic material (pliable plastic) provided it possesses the same elastivity as rubber.It is from 18 to 20cm in diameter and must have a minimum weight of 400g. The ball can be of any colour.The ball should rest in the gymnast's hand and not rest against the wrist or be able to be grasped.