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.
A pulley is a rope, belt, or chain wrapped around a wheel (grooved or smooth). Pulleys can be fixed or moveable. The chain and sprocket on your bicycle is a form of pulley. Wheel and Axle. A wheel and axle has a larger wheel (or wheels) connected by a smaller cylinder (axle) that is fastened to the wheel so that they turn together.