The first public institution of higher education in North Carolina, the school opened its doors to students on February 12, 1795. The university offers degrees in over 70 courses of study through fourteen colleges and the College of Arts and Sciences.
Noun. 1. pulley-a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope. pulley block, pulley-block, block. block and tackle-pulley blocks with associated rope or cable.
There are six common simple machines: lever, pulley, inclined plane, wheel and axle, screw and wedge. Essentially they all make life easier in one way or another. It could be that they make it easier to move a load, requiring less effort or force or that they connect or seperate two things. A broom is a lever.