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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 ...
Modern wire rope was invented by the German mining engineer Wilhelm Albert in the years between 1831 and 1834 for use in mining in the Harz Mountains in Clausthal, Lower Saxony, Germany. [3] [4] [5] It was quickly accepted because it proved superior strength from ropes made of hemp or of metal chains, such as had been used before. [6]
Twine is the foundation to both textile and rope making. Twine has been made of animal hair, including human, [3] sinews and plant material, often from the vascular tissue of a plant (known as bast), but also bark and even seed down, e.g. milkweed.
Allegory of the Arithmetic with knotted rope (taken from the Hortus deliciarum (around 1180). The arithmetic rope, knotted rope, thirteen-knot-rope, or thirteen-knot-cord, is an arithmetic tool made of rope which was widely used in the Middle Ages in Europe, where skilled professionals such as architects and shipbuilders used these ropes to solve various mathematical and geometrical problems.
The stirrup was invented in the Chinese Jin dynasty during the 4th century, ... stigrap, Middle English stirop, styrope, [5] i.e. a mounting or climbing-rope. [1]
A loose bull is lassoed by a pickup rider during a rodeo in Salinas west of Fresno, California, July 2006. A lasso or lazo (/ ˈ l æ s oʊ / or / l æ ˈ s uː /), also in Mexico called a reata and la reata, [1] [2] and in the United States riata or lariat [3] (from Mexican Spanish lasso for roping cattle), [4] is a loop of rope designed as a restraint to be thrown around a target and ...
The rope ladder is made of natural sisal, perfect for scratching. MORE FROM DOGTIME. 7 Best Automatic Cat Litter Boxes That Save You Time. BEST WITH 3 PERCHES Yaheetech Cat Tree Tower.
Ancient Japanese iron kaginawa climbing hook A chain grapnel – used to recover a cable from the seabed. A grappling hook or grapnel is a device that typically has multiple hooks (known as claws or flukes) attached to a rope or cable; it is thrown, dropped, sunk, projected, or fastened directly by hand to where at least one hook may catch and hold on to objects.