Dragon Ball's cast of heroes is iconic, and its world is vast enough to allow for countless interesting spin-off stories to ...

This article delves into the most crucial spin bowling variations—the ones every enthusiast should learn to understand the ...

Cross: Spin is governed by the tangential coefficient of restitution, typically about 0.2 for a tennis ball on tennis strings. The maximum possible value is 1.0 and that could double the spin.

In some ball models, the mid-layer can actually reduce spin off the tee with a driver, while others depending on construction can produce mid or even higher spin rates.

Making a ball spin by itself is not as hard as it may sound. All you need is an electric motor that’s small enough to fit inside, along with a power source and some way to turn it on.

Beyond the spin serve, the most meaningful change in rules implemented for 2023 was that players should not wear clothing that “closely matches the ball color.” ...