A commonly used machine to measure weight is the scale. There are different types of scales, including mechanical and digital ones, that provide readings based on the gravitational force acting on an object. Mechanical scales often use springs or levers, while digital scales use sensors to provide precise measurements. Scales are essential in various settings, such as kitchens, laboratories, and industries, where accurate measurements of weight are crucial. The widespread use of scales facilitates numerous applications, from grocery shopping to scientific research, showcasing their importance across many fields.