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Figure-eight Knot
The figure-eight knot or figure-of-eight knot is a type of stopper knot. It is very important in sailing, rock climbing and caving as a method of stopping ropes from running out of retaining devices. Like the overhand knot, which will jam under strain, often requiring the rope to be cut, the figure-eight will also jam, but is usually more easily undone than the overhand knot. The stevedore knot is an extension of simple figure-eight knot with an additional turn before the end is finally tightened. Different types Figure-eight loop The figure-eight loop is used like an overhand loop knot. This type of knot can be used in prusik climbing when used in conjunction with a climbing harness, a climbing rope, and locking carabiner designed for climbing, to ascend or descend with minimal equipment and effort. Figure-eight bend The figure-eight bend knot is used to "Rope splicing, splice" together two ropes, not necessarily of equal diameter. This knot is tied starting with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knot
A knot is an intentional complication in Rope, cordage which may be practical or decorative, or both. Practical knots are classified by function, including List of hitch knots, hitches, List of bend knots, bends, List of loop knots, loop knots, and Rope splicing, splices: a ''hitch'' fastens a rope to another object; a ''bend'' fastens two ends of a rope to each another; a ''loop knot'' is any knot creating a loop; and ''splice'' denotes any multi-strand knot, including bends and loops. A knot may also refer, in the strictest sense, to a stopper (knot), stopper or knob at the end of a rope to keep that end from slipping through a grommet or eye. Knots have excited interest since ancient times for their practical uses, as well as their Topology, topological intricacy, studied in the area of mathematics known as knot theory. History Knots and knotting have been used and studied throughout history. For example, Chinese knotting is a decorative handicraft art that began as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climbing Harness
A climbing harness is a piece of equipment that allows a climber to tie in (climbing), tie in to the safety of a rope. It is used in climbing, rock and ice climbing, ice climbing, abseiling, and lowering; this is in contrast to other activities requiring ropes for access or safety such as industrial rope work (such as window cleaning), construction, and rescue and recovery, which use safety harnesses instead. Overview While an improvised harness can be created out of a length of rope or nylon webbing, commercially produced harnesses specific to climbing rock and ice are the norm. These characteristically include a dedicated tie-in loop, padding, and amenities such as gear loops. Most commercial climbing harnesses meet the guidelines and manufacturing standards of organizations such as the Union Internationale des Associations d'Alpinisme (UiAA) or European Committee for Standardization. Harnesses of users involved in climbing should be attached to dynamic (kernmantle) rope, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Knots
This list of knots includes many alternative names for common knots and lashings. Knot names have evolved over time, and there are many conflicting or confusing naming issues. The overhand knot, for example, is also known as the thumb knot. The figure-eight knot is also known as the Savoy knot or the Flemish knot. A * Aberdeen knot - preferred for closure of intradermal sutures * Adjustable bend – can be easily lengthened or shortened * Adjustable grip hitch – a simple hitch which may easily be shifted up and down the rope while slack * Albright special – used to tie two different diameters of line together, for instance to tie monofilament to braid *Alpine butterfly (also known as a butterfly loop) – a static loop mostly used by mountain climbers and rappellers for securing a carabiner to static rope * Alternate ring hitching – covering a ring in hitching can prevent damage * Anchor bend – attaching a rope to a ring or similar termination * Angler's loop – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Figure-eight Knot (mathematics)
In knot theory, a figure-eight knot (also called Listing's knot) is the unique knot with a crossing number (knot theory), crossing number of four. This makes it the knot with the third-smallest possible crossing number, after the unknot and the trefoil knot. The figure-eight knot is a prime knot. Origin of name The name is given because tying a normal figure-eight knot in a rope and then joining the ends together, in the most natural way, gives a model of the mathematical knot. Description A simple parametric representation of the figure-eight knot is as the set of all points (''x'',''y'',''z'') where : \begin x & = \left(2 + \cos \right) \cos \\ y & = \left(2 + \cos \right) \sin \\ z & = \sin \end for ''t'' varying over the real numbers (see 2D visual realization at bottom right). The figure-eight knot is Prime knot, prime, alternating knot, alternating, rational knot, rational with an associated value of 5/3, and is Chiral kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Scout Association
The Scout Association is the largest organisation in the Scout Movement in the Scouting in the United Kingdom, United Kingdom. Following the rapid development of the Scouting, Scout Movement from 1907, The Scout Association was formed in 1910 and Incorporation (association), incorporated in 1912 by a royal charter under its previous name of The Boy Scouts Association. It is a founding member organisation of the World Organization of the Scout Movement. The organisation is the largest national Scout organisation in Europe, representing 35% of the participants of the European Scout Region (World Organization of the Scout Movement), European Scout Region. , the organisation claimed to provide activities to 444,682 young people (aged 4–18) in the UK. It also has 83,792 adult volunteers in leader roles and 68,974 adult volunteers in governance, support and other roles, including Network members. This is more than one adult for every 3 children under 18. As well as Scout programm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Savoy Knot
The Savoy knot, a type of decorative knot, is a heraldic knot used primarily in Italian heraldry. It is most notable for its appearance on the heraldic badge of the House of Savoy, where it is accompanied by the motto ''Stringe ma non costringe'', "It tightens, but does not constrain". The Cavendish knot is an identical heraldic knot. In shape, the Savoy knot is comparable to a figure eight. When used outside heraldry (as a real knot), it is known as a figure-eight knot. The Savoy knot can also be seen on the Alfa Romeo automobile badge (founded and manufactured in Milan Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ..., Italy) up to 1943.See the historical brands iStoria del logo (it)/ref> See also *List of knots *Supreme Order of the Most Holy Annunciation, Order of the Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heraldry
Heraldry is a discipline relating to the design, display and study of armorial bearings (known as armory), as well as related disciplines, such as vexillology, together with the study of ceremony, Imperial, royal and noble ranks, rank and genealogy, pedigree. Armory, the best-known branch of heraldry, concerns the design and transmission of the Achievement (heraldry), heraldic achievement. The achievement, or armorial bearings usually includes a coat of arms on a escutcheon (heraldry), shield, helmet (heraldry), helmet and Crest (heraldry), crest, together with any accompanying devices, such as supporters, Heraldic badge, badges, Heraldic flag, heraldic banners and mottoes. Although the use of various devices to signify individuals and groups goes back to Ancient history, antiquity, both the form and use of such devices varied widely, as the concept of regular, hereditary designs, constituting the distinguishing feature of heraldry, did not develop until the High Middle Ages. It i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basketmaking
Basket weaving (also basketry or basket making) is the process of weaving or sewing pliable materials into three-dimensional artifacts, such as baskets, mats, mesh bags or even furniture. Craftspeople and artists specialized in making baskets may be known as basket makers and basket weavers. Basket weaving is also a rural craft. Basketry is made from a variety of fibrous or pliable materials—anything that will bend and form a shape. Examples include pine, straw, willow (esp. osier), oak, wisteria, forsythia, vines, stems, fur, hide, grasses, thread, and fine wooden splints. There are many applications for basketry, from simple mats to hot air balloon gondolas. Many Indigenous peoples are renowned for their basket-weaving techniques. History While basket weaving is one of the widest spread crafts in the history of any human civilization, it is hard to say just how old the craft is, because natural materials like wood, grass, and animal remains decay naturally and constant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abseiling
Abseiling ( ; ), also known as rappelling ( ; ), is the controlled descent of a steep slope, such as a rock face, by moving down a rope. When abseiling, the person descending controls their own movement down a static or fixed rope, in contrast to Belaying, lowering off, in which the rope attached to the person descending is paid out by their belayer. Description The technique is used by Climbing, climbers, mountaineers, Caving, cavers, Canyoning, canyoners, search and rescue and rope access technicians to descend cliffs or slopes when they are too steep or dangerous to descend without protection. Many climbers use this technique to protect established Anchor (climbing), anchors from damage. Rope access technicians also use this as a method to access difficult-to-reach areas from above for various industrial applications like maintenance, construction, inspection and welding. To descend safely, abseilers use a variety of techniques to increase the friction on the rope to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canyoneering
Canyoning (canyoneering in the United States, kloofing in South Africa) is a sport that involves traveling through canyons using a variety of techniques, such as walking, scrambling, climbing, jumping, abseiling (rappelling), swimming, and rafting. Although non-technical descents such as hiking down a canyon ("canyon hiking") are often referred to as "canyoneering", the terms "canyoning" and "canyoneering" are more often associated with technical descents—those that require rappels and ropework, technical climbing or down-climbing, technical jumps, and/or technical swims. Canyoning is frequently done in remote and rugged settings and often requires navigational, route-finding, and other wilderness travel skills. Canyons that are ideal for canyoning are often cut into the bedrock stone, forming narrow gorges with numerous drops, sculpted walls, and sometimes waterfalls. Most canyons are cut into limestone, sandstone, granite, or basalt, though other rock types are found. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stein Knot AKA Stone Knot
Stein may refer to: Places Austria * Stein, a neighbourhood of Krems an der Donau, Lower Austria * Stein, Styria, a municipality in the district of Fürstenfeld, Styria * Stein (Lassing), a village in the district of Liezen, Styria * Stein an der Enns, a village in the district of Liezen, Styria Canada * Stein River, a tributary of the Fraser River, from the Nlaka'pamux language ''Stagyn'', meaning "hidden place" ** Stein Valley Nlaka'pamux Heritage Park, a British Columbia provincial park comprising the basin of that river ** Stein Mountain, a mountain in the Lillooet Ranges named for the river ** Stein Lake, a lake in the upper reaches of the Stein River basin Germany * Stein, Bavaria, a town in the district of Fürth, Bavaria * Stein, Schleswig-Holstein, a municipality in the district of Plön, Schleswig-Holstein * Stein (Kochel am See), a mountain in Bavaria * Stein an der Traun, a village in Upper Bavaria, part of the town of Traunreut * Stein-Bockenheim, a municip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
