Steel-yard Used as a Lever Small 320×286 Medium 640×572 Large 1024×916 Download Tiff Original 2400×2146 | (447.1 KB) Description Illustration of an ordinary steel-yard being used as a lever. F represents the fulcrum. Weight P is used to balance weight W. Keywords balance, force, fulcrum, lever, levers, proportion problems, proportions, ratio, ratios, scale, weight, weights Galleries Proportions Source: Claude Irwin Palmer Practical Mathematics for Home Study (New York, NY: McGraw-Hill Book Company, Inc., 1919)
