Principles of Simple Machines: Machines simply transmit mechanical work from one part of a device to another part. A machine produces force and controls the direction and the motion of force, but it cannot create energy. A machine's ability to do work is measured by two factors. These are (1) mechanical advantage and (2) efficiency. Mechanical advantage. In machines that transmit only mechanical energy, the ratio of the force exerted by the machine to the force applied to the machine is known as mechanical advantage.
The Rosicrucians are a mystical arcane society that played a major role in the development of Freemasonry. The rose and cross symbolize the society. It signifies crucifying the soul upon the body.
September 7, 2011. Don Cusicâs new book, The Cowboy in Country Music: An Historical Survey with Artist Profiles (McFarland), explores how the cowboy became an American pop culture icon and the face of country music. Cusic is a music historian and professor of music business at Belmont University in Nashville.