In aerial tramways the cable is supported by means of pulley wheels, which run along one cable; a separate cable provides the motive power. Ski lifts are similar, though the car is usually supported by the moving cable alone. The cable-car principle is used by rail transportation on steep gradients in the form of a funicular; here an ascending car is usually counterbalanced by a descending car attached to the same cable.
Related category TECHNOLOGY
Home • About • Copyright © The Worlds of David Darling • Encyclopedia of Alternative Energy • Contact