The wheel is a circular component that enables movement and is one of the most significant inventions in human history. It is primarily used in vehicles, such as cars, bicycles, and trains, allowing them to roll smoothly over surfaces. The design of the wheel has evolved over time, leading to various types, including solid, spoked, and pneumatic wheels.
In addition to transportation, wheels are also utilized in machinery and equipment, playing a crucial role in various mechanical systems. They are essential in applications ranging from gears in engines to carts in warehouses, showcasing their versatility and importance in everyday life.