Simple Lever Small 320×111 Medium 640×223 Large 1024×357 Download Tiff Original 2400×836 | (269.4 KB) Description "Any rod, or bar, which is used in raising a weight, or surmounting a resistance, by being placed on a fulcrum, or prop, becomes a lever." -Comstock 1850 Keywords bar, definition, fulcrum, lever, prop, raise, rod, simple, weight Galleries Levers Source: J. L. Comstock A System of Natural Philosophy: Principles of Mechanics (: Pratt, Woodford, and Company, 1850) 69
