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A static rope is a low-elongation rope that is designed to stretch minimally when placed under load, typically less than 5%. In contrast, a dynamic rope is designed to stretch up to 40%. [ 1 ] Static ropes have a wide variety of uses, for instance in fire rescue operations [ 2 ] and caving .
Dynamic rope is used to belay climbers, and is designed to stretch under a heavy load to absorb the shock of a fallen climber. Dynamic ropes manufactured for climbing are tested by the UIAA . A test of "single" standard rope involves tying an 80 kg (176 pound) weight to the end of a length of rope.
This elasticity, or stretch, is the property that makes the rope dynamic—in contrast to a static rope that has only slight elongation under load. Greater elasticity allows a dynamic rope to more slowly absorb the energy of a sudden load, such from arresting a climber's fall , by reducing the peak force on the rope and thus the probability of ...
U.S. President Donald Trump said on Thursday he was not sure the United States should be spending anything on NATO, telling reporters the U.S. was protecting NATO members, but they were "not ...
Team roping also known as heading and heeling is a rodeo event that features a steer (typically a Corriente) and two mounted riders. The first roper is referred to as the "header", the person who ropes the front of the steer, usually around the horns, but it is also legal for the rope to go around the neck, or go around one horn and the nose ...
Trump has said he wants lower interest rates, but he may be standing in his own way.. The president said last week that he would demand that interest rates be lowered. His policies, though, are an ...