The balls are also decorated with smile face patterns to add to the excitement Suitable Size and Easy to Inflate: our bouncing ball is approximately 18 inches/ 45 cm in diameter when inflated ...

If you watch the bounce very carefully ... ball leave the lighter ball behind during the drop? If the two balls were the same size and shape then you might expect the balls to accelerate downwards ...

If all the cloth used to make the balls during Wimbledon was laid out, it would cover a pitch the size of the Millennium Stadium! Yes. Different tournaments are played on different surfaces. The ...