squashing the tennis ball under your lead foot in the process. Once you are used to the rocking motion, moving your weight into the left heel and then into the ball of the lead foot, you will ...

Even more unexpectedly, I have been able to make tennis-ball towers consisting of layers of four balls (4 n + 1) and five ...

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 ...