Mechanical springs are devices that store and release energy when they are compressed or stretched. They are made from elastic materials, allowing them to return to their original shape after being deformed. Springs are commonly used in various applications, such as in automobiles, toys, and furniture, to provide cushioning or support. There are several types of mechanical springs, including compression springs, tension springs, and torsion springs. Each type functions differently based on its design and intended use. For example, compression springs are designed to resist being compressed, while tension springs are made to resist being pulled apart.