Simple Machines Small 320×290 Medium 640×580 Large 1024×928 Download TIFF Original 2400×2176 | (971.4 KB) Description Illustrations showing the six mechanical powers: lever, wheel and axle, pulley, inclined plane, wedge, and screw. Keywords Inclined Plane, lever, mechanics, physics, pulley, screw, simple machines, six mechanical powers, wedge, wheel and axle Galleries Miscellaneous Simple Machines Source: Ellsworth D. Foster ed. The American Educator (vol. 5) (Chicago, IL: Ralph Durham Company, 1921)
