Bible Encyclopedias
Mechanical Powers
The Nuttall Encyclopedia
The lever, inclined plane, wheel and axle, screw, pulley, and wedge, the elementary contrivances of which all machines are composed.
Copyright Statement
Public Domain.
Bibliography Information
Wood, James, ed. Entry for 'Mechanical Powers'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/m/mechanical-powers.html. Frederick Warne & Co Ltd. London. 1900.