Wheel and Axle Small 320×303 Medium 640×606 Large 1024×970 Download TIFF Original 2400×2273 | (932.4 KB) Description "It consists of two wheels, one of which is larger than the other, but the small one passes through the larger, and hence both have a common centre, on which they turn." -Comstock 1850 Keywords axle, wheel Galleries Wheel and Axle Source: J. L. Comstock A System of Natural Philosophy: Principles of Mechanics (: Pratt, Woodford, and Company, 1850) 77
