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The balls used in squash are small rubber balls that can differ in terms of diameter, weight and softness. These features determine the speed and bouncing amplitude of the ball, with softer balls being generally slower than the harder balls. The temperature of the ball also affects the amount of bounce: the warmer the ball, the more it bounces. [3]
The foot fault judge used directional microphones to detect the striking of the ball by the player's racquet, when serving the ball, that functioned in conjunction with a timing circuit to detect if the players foot had activated the baseline line "IN" sensor immediately prior to, or during, the striking of the ball.
These machines will work with any ball of roughly the right size and weight, such as normal cricket balls or tennis balls. However, they usually work best with their own balls, bowling machine balls which are made of hard plastic, and are covered in dimples. These dimples are to help the spinning wheels grip the ball and, for example, improve ...
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Tennis strings are usually made up of gut, polyester or a hybrid of the two but have been known to consist of other materials including: nylon, metal, multifilament and Kevlar. Racquet tension can vary from anywhere from 30-70 lbs. Professional players tend to opt for the upper limit of the racquet tension range, however, an increasing number ...
A Penn Championship tennis ball Penn 3 balls, new and used Penn racquetball Penn Racquet Sports, Inc. is a subsidiary of Head N.V. that manufactures tennis balls and racquetballs. Penn was founded in 1910 as Pennsylvania Rubber Company of America, Inc. in Jeannette, Pennsylvania . [ 1 ]