Balance

—1. In physics, a state of equilibrium or counterpoise; said to exist when the forces and momentum of a mechanism are so adjusted that motion is uniform and unattended by vibration or percu ion. 2. A delicate form of scales adapted for the minute measurements of chemical and experimental work. One in the Royal Mint in London is so delicate that it shows the difference in weight occasioned by writing one’s name with pencil on a previously weighed piece of paper.