That's because according to strict tennis rules, the ball must bounce between 53 and 58 inches after being dropped onto concrete from a height of 100 inches. Each ball must also measure two-and-a-half ...

A tennis ball is made of hollow rubber and covered with felt. An official tennis ball is approximately 2.575 to 2.7 inches in diameter and 2 ounces in weight. What are the dimensions of an Olympic ...

This classic pairing is kismet. Dogs have a natural affinity toward tennis balls because their shape, size, texture, and even smell are all perfectly designed to pique their interests.

Participants performed tennis volleys under 18 ball conditions: three ball speeds (slow, medium and fast), with three ball types (two oversize and one regular size) each from two sides (forehand and ...