In many ball sports like golf, football and tennis, controlling the ball’s spin is an important skill. Expert players can make golf balls curve around obstacles, launch footballs towards goal ...

In many ball sports like golf, football and tennis, controlling the ball’s spin is an important skill. Expert players can make golf balls curve around obstacles, launch footballs towards goal ...

“People often talk about how racquet technology has changed tennis ... results in higher ball speed off the strings, but it is only 1% higher. String dampeners have no effect on elbow injuries.

What are tennis ... makes the ball bounce. Balls which haven't got enough pressure inside make a thud when they hit the floor. These are called dead balls. For the first Wimbledon tournament in 1902 ...