What is a weighing scale?
Is the must used measuring instruments in our life.
So, what is a weighing scale?
A weighing scale (or weighing balance) is a device to measure weight or mass. These are also known as mass scales, weight scales, mass balance, weight balance, or simply scale, balance, or balance scale. Others they refer to it as weighing machine. The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum is a type of what we call it now mechanical scale.Wikipedia