rope
131Rope drag — In rock climbing, rope drag is the friction felt when pulling a rope through a number of pieces of protection, or over rock prominences. It is exacerbated by having great numbers of anchor placements, and especially if they form a zig zag rather… …
132Rope pump — A rope pump is a kind of pump used in developing areas to raise water from wells. Rope pumps consist of a PVC pipe, and a rope with washers attached to it. The water is held in between the washers in the pipe, and is pulled to the surface. Rope… …
