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2. Static rope - Wikipedia

   en.wikipedia.org/wiki/Static_rope

   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 .

3. Kernmantle rope - Wikipedia

   en.wikipedia.org/wiki/Kernmantle_rope

   Static ropes are designed to allow relatively little stretch, which is most useful for applications such as hauling and rappelling. 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 ...

4. Downline (diving) - Wikipedia

   en.wikipedia.org/wiki/Downline_(diving)

   In underwater diving, a downline is a piece of substantial cordage running from a point at the surface to the underwater workplace, and kept under some tension. It can be used as a guideline for divers descending or ascending, [1] for depth control in blue-water diving, [2] and as a guide for transfer of tools and equipment between surface and diver by sliding them along the downline at the ...

5. Rope - Wikipedia

   en.wikipedia.org/wiki/Rope

   Rope may be constructed of any long, stringy, fibrous material (e.g., rattan, a natural material), but generally is constructed of certain natural or synthetic fibres. [1] [2] [3] Synthetic fibre ropes are significantly stronger than their natural fibre counterparts, they have a higher tensile strength, they are more resistant to rotting than ropes created from natural fibres, and they can be ...

6. Open-water diving - Wikipedia

   en.wikipedia.org/wiki/Open-water_diving

   Tethered diver in blue water dive observing fauna in the water column Marine scientist coordinates a blue water dive for 4 companions - each at the end of a rope tether and each rope kept taut by a weight and pulley system. Blue-water diving is done in mid-water where the bottom is out of sight of the diver and there may be no fixed visual ...

7. Prusik - Wikipedia

   en.wikipedia.org/wiki/Prusik

   The rope to be pulled is passed through a pulley, and a Prusik is tied on the loaded side. When the rope is pulled, the Prusik rides against the pulley, and the rope slides through it; but when the rope is relaxed, the Prusik slides away from the pulley and grabs the rope. Thus, the combination acts as a ratchet (or Progress Capture Device (PCD)).