If you throw it across the seams, the ball will rotate more and generate more speed.

This is because the ball is rotating backwards, lowering the air pressure above the ball.

The balls rotated around a common center of gravity.

The ball in ball valves rotates within plastic seats.

The ball rotated slowly, floating in nothing.

The ball rotates around in a layer of water.

As a result, when the balls rotate, some of the electrons in the niobium slip behind their atoms.

The socket is where the ball rotates in, and also contains the controls for locking the ball.

As one of the bearing races rotates it causes the balls to rotate as well.

The ball will not rotate in the absence of friction.