Rope
From Halbeeg, the open encyclopedia · Af-Soomaali
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Rope is a long, flexible cordage (though certain ropes can be stiff) made from many fibres twisted or braided together. Its basic purpose is to gather the strength of small individual fibres into a single cord with great tensile strength, while remaining flexible and able to bend.
Rope is a tool used by many societies worldwide, especially in pastoralism, fishing, construction, and cargo transport. In Somali, the word xadhig also carries figurative meaning, referring to imprisonment or control.
Structure and manufacture
The standard process involves three stages: individual fibres are twisted together to form thread; threads are twisted together to form strand; and three or four strands are twisted together to form rope. The direction of twist at each stage typically opposes that of the previous stage, which prevents the rope from unravelling, since the twisting forces balance each other out.
Source materials
Traditional ropes are commonly made from natural materials such as coconut husk, tree fibres, sisal, animal hair or hide, and wool. In modern times, many ropes are made from synthetic fibres such as nylon and polypropylene, which generally resist water and rot better than natural materials. Natural fibres absorb water and can rot more quickly, while some synthetic fibres can degrade in sunlight.
Uses
Rope is used for securing cargo, hauling heavy loads, constructing wells (from which water is drawn), tethering livestock, building traditional houses such as the Somali dwelling, and mooring ships at docks. It is also employed for support and rescue, such as climbing mountains and fishing nets.
Strength and maintenance
Rope strength depends on the knot used. Different knots are designed for different purposes: some untie easily, some hold firm under load, and some join two ropes together. Each knot reduces the strength the rope can bear, since the fibres are compressed at the knot point. Maintenance includes cleaning before storage, keeping it away from rust and sharp objects, and checking for visible damage on its surface.