A SCALE is a machine used for weighing objects. It is typically composed of two plates or bowls suspended at equal distances from a fulcrum. The object to be weighed is placed on one plate, while an adjustable weight, such as a counterweight, is placed on the other. By adjusting the weight, the balance can be calibrated to accurately measure the weight of the object. Scales are used in a variety of industries, including food production, shipping, and medical research.