Tennis balls are something that don't seem to last very long, and there's actually a reason for this. The main culprit is the air pressure inside the ball which starts to leak over time, leading to a decrease in bounce. The ball's surface also wears down with use, making it less aerodynamic. Furthermore, exposure to various weather conditions also affects its longevity. In short, while tennis balls are made for durability, they are not immune to the wear and tear of constant play and environmental factors.

In my recent exploration, I delved into the interesting question of why tennis rackets are typically hoop-shaped. The hoop-like structure allows for an optimal sweet spot, which is the perfect area on the string bed for hitting the ball. It's all about physics - the hoop shape provides the best power, control, and spin for the player. Additionally, the aerodynamics of the hoop shape make the racket easy to swing and maneuver. So, it's not just about tradition, the design of a tennis racket is a blend of science and practicality.