Z-pulley

A wheel grooved on its circumference to retain a rope or line. The weight of an eight-day clock is usually hung from a pulley. The line passes from the barrel round the pulley and ...

pulley

Fire safety; Prevention & protection

A device with a free-turning, grooved metal wheel (sheave) used to reduce rope friction. Side plates are available for a carabiner to be attached.

pulley

Agriculture; Rice science

A small wheel that turns by a belt to transmit or apply power.

Mount Everest

Sports; Climbing

Mount Everest (Tibetan: ཇོ་མོ་གླང་མ; Chinese: 珠穆朗玛峰; Nepali: सगरमाथा) is the highest mountain on earth, measuring 8,848 meters (29,029 ft) above sea level at its peak. It is ...

chimney

Sports; Climbing

A rock cleft with vertical sides mostly parallel, large enough to fit the climber's body into. To climb such a structure, the climber often uses his head, back and feet to apply ...

cairn

Sports; Climbing

A distinctive pile of stones placed to designate a summit or mark a trail, often above the treeline.

crank

Sports; Climbing

To pull on a hold as hard as possible.

bump

Sports; Climbing

To quickly move up a hand or a foot a small distance from one useful hold to another.

clean

Sports; Climbing

To remove equipment from a route. A route that is free of loose vegetation and rocks. To complete a climb without falling or resting on the rope. Also see redpoint. In aid ...