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Single Rope Technique
The single-rope techniques (SRT) are a set of methods used to descend and ascend on the same single rope. Single-rope techniques are used in caving, potholing, rock climbing, canyoning, roped access for building maintenance, and by arborists for tree climbing, although to avoid confusion in the tree climbing community, many have taken to calling them "stationary" rope techniques. Single-rope techniques are used in contrast to Tree climbing#Doubled-rope technique, double-rope techniques (DRT), also known as the moving-rope techniques. Historical developments In the 1930s, as caving became increasingly popular in France, several clubs in the Alps made vertical cave exploration an outdoor sport. During World War II, a team composed of Pierre Chevalier (caver), Pierre Chevalier, Fernand Petzl, Charles Petit-Didier, and others explored the Dent de Crolles cave system near Grenoble, France, which became the deepest explored cave in the world (–658m) at that time. The lack of availabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogging
Frogging may refer to: *The use of braided Frog (fastening), frog fasteners *Searching for frogs *The act of Daniel_LaPlante, breaking into someone's home and covertly living within their walls, usually by way of a secret entrance or crawlspace. *Performing a Planche (exercise), planche stand *Ripping out knitting *Splooting, lying prone and spread-eagled like a frog See also *Fragging, deliberate killing or attempted killing by a soldier of a fellow soldier * * Frogger (other) * Frog (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petzl Croll
A Petzl Croll is an Ascender (climbing), ascending device used in caving and industrial rope access made by the French company Petzl. Its name comes from the town Crolles where Petzl's company headquarters are located but might also be a reference to the nearby cave system of the Dent de Crolles, the exploration of which triggered a lot of technical effort leading to innovation in caving equipment. Usage The Croll is normally used in the chest position and in conjunction with an upper ascender or Jumar. This configuration allows a climber, caver or rope access worker to rapidly ascend a rope. History In 1968 Bruno Dressler asked Fernand Petzl, who worked as a metals machinist, to build a rope-ascending tool, today known as the Petzl Croll, that he had developed by adapting the Jumar to the specificity of pit caving. Following these developments, Fernand Petzl started in the 1970s a small caving equipment manufacturing company Petzl. Standards * EN 567 This standard allows the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petzl Stop
A Petzl Stop is a bobbin descender used primarily in caving and formerly used for industrial rope access made by the French company Petzl. Usage The Stop is for use with single low stretch kernmantle ropes and is usually attached to the harness via a carabiner A carabiner or karabiner (), often shortened to biner or to crab, colloquially known as a (climbing) clip, is a specialized type of shackle, a metal loop with a spring-loaded gate used to quickly and reversibly connect components, most notabl .... The rope is then threaded through the cam and bobbin by undoing the safety clip and moving the swinging side plate to the side. The swinging side plate facilitates insertion and removal of the rope without the need to disconnect it from the harness, making it less likely to be dropped while inserting and removing the rope from the Stop while at height. As the Stop is a self-braking descender, an unintentional release of the handle should stop the descent, due to the asymm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Descender (climbing)
In typography and handwriting, a descender is the portion of a grapheme that extends below the baseline of a font. For example, in the letter ''y'', the descender is the "tail", or that portion of the diagonal line which lies below the ''v'' created by the two lines converging. In the letter ''p'', it is the stem reaching down past the ''ɒ''. In most fonts, descenders are reserved for lowercase characters such as ''g'', ''j'', ''q'', ''p'', ''y'', and sometimes ''f''. Some fonts, however, also use descenders for some numerals (typically ''3'', ''4'', ''5'', ''7'', and ''9''). Such numerals are called old-style numerals. (Some italic fonts, such as Computer Modern italic, put a descender on the numeral ''4'' but not on any other numerals. Such fonts are not considered old-style.) Some fonts also use descenders for the tails on a few uppercase letters such as ''J'' and ''Q''. The parts of characters that extend above the x-height of a font are called ascenders. Descenders ... [...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] |
Rope
A rope is a group of yarns, Plying, plies, fibres, or strands that are plying, twisted or braided together into a larger and stronger form. Ropes have high tensile strength and can be used for dragging and lifting. Rope is thicker and stronger than similarly constructed cord, String (structure), string, and twine. Construction Rope may be constructed of any long, stringy, fibrous material (e.g., rattan, a natural material), but generally is constructed of certain natural fibre, natural or synthetic fibre, synthetic fibres. 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 made to float on water. But synthetic ropes also possess certain disadvantages, including slipperiness, and some can be damaged more easily by UV light. Common natural fibres for rope are Manila hemp, hemp, linen, cotton, coir, jute, straw, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SRT Caving Deviation
SRT or srt may refer to: Automotive * SRT (Street and Racing Technology), American high-performance automobile group associated with Chrysler, Dodge, and Jeep. * Suter Racing Technology, a Swiss Moto2 constructor * Selleslagh Racing Team, Belgium * Swiss Racing Team, an auto racing team in Switzerland * Class SRT, a type of London Transport bus Science and technology * .srt, extension for SubRip subtitle computer files * SRT Communications, Minot, North Dakota, US * Sweeney–Robertson–Tocher division, computer division algorithm * Sardinia Radio Telescope * Secure Reliable Transport, video streaming protocol * Smart Response Technology, a caching mechanism by Intel * Sound Recording Technology, UK studio * Standard Radio & Telefon AB, a Swedish computer manufacturer * Stereotactic radiation therapy * Superficial radiation therapy * Shortest remaining time, a scheduling algorithm * Special relativity theory Transportation * Sacramento Regional Transit District * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breaststroke
Breaststroke is a human swimming, swimming style in which the swimmer is on their chest and the torso does not rotate. It is the most popular recreational style due to the swimmer's head being out of the water a large portion of the time, and that it can be swum comfortably at slow speeds. In most swimming classes, beginners learn either the breaststroke or the freestyle (front crawl) first. However, at the competitive level, swimming breaststroke at speed requires endurance and strength comparable to other strokes. Some people refer to breaststroke as the "frog" stroke, as the arms and legs move somewhat like a frog swimming in the water. The stroke itself is the slowest of any competitive strokes and is thought to be the oldest of all swimming strokes. Speed and ergonomics Breaststroke is the slowest of the four official styles in swimming (sport), competitive swimming. The fastest breaststrokers can swim about 1.70 meters (~5.6 feet) per second. It is sometimes the harde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountaineering
Mountaineering, mountain climbing, or alpinism is a set of outdoor activities that involves ascending mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas that have become mountain sports, sports in their own right. Indoor climbing, sport climbing, and bouldering are also considered variants of mountaineering by some, but are part of a wide group of mountain sports. Unlike most sports, mountaineering lacks widely applied formal rules, regulations, and governance; mountaineers adhere to a large variety of techniques and philosophies (including grade (climbing), grading and climbing guidebook, guidebooks) when climbing mountains. Numerous local alpine clubs support mountaineers by hosting resources and social activities. A federation of alpine clubs, the International Climbing and Mountaineering Federation (UIAA), is the International Olympic Committee-recognized world organization for mountaineering and climbing. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climbing
Climbing is the activity of using one's hands, feet, or other parts of the body to ascend a steep topographical object that can range from the world's tallest mountains (e.g. the eight thousanders) to small boulders. Climbing is done for locomotion, sporting recreation, for competition, and is also done in trades that rely on ascension, such as construction and military operations. Climbing is done indoors and outdoors, on natural surfaces (e.g. rock climbing and ice climbing), and on artificial surfaces (e.g. climbing walls and climbing gyms). The sport of climbing evolved by climbers making first ascents of new types of climbing routes, using new climbing techniques, at ever-increasing grades of difficulty, with ever-improving pieces of climbing equipment. Guides and guidebooks were an important element in developing the popularity of the sport in the natural environment. Early pioneers included Walter Bonatti, Riccardo Cassin, Hermann Buhl, and Gaston Rébuffat, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klemheist
The klemheist knot or French Machard knot is a type of friction hitch that grips the rope when weight is applied, and is free to move when the weight is released. It is used similarly to a Prusik knot or the Bachmann knot to ascend or descend a climbing rope. One advantage is that webbing can be used as an alternative to cord. The Klemheist is easier to slide up than a Prusik. The klemheist is also a way to attach a snubber to the anchor rope of small boats, with the advantage that it is easy to undo.Eric Vola, �Le nœud Machard et son histoire », site du CAF-Marseille, 2015 Sometimes the knot name is misspelled as "kleimheist", with an extra "i". Technique Make a secure loop of a cord (see Double fisherman's knot) that is definitely narrower than the rope. Wrap from one end around the rope two or three times in a direction that will be down. The loose end is then threaded through the starting end, and carefully tightened to leave the wraps neat. In use, strain must be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bachmann Knot
The Bachmann hitch (sometimes misspelled 'Bachman') is a friction hitch, named after the Austrian alpinist Franz Bachmann. It is useful when the friction hitch needs to be reset quickly or often or made to be self-tending as in crevasse and self-rescue. (See Prusik knot) The Bachmann hitch requires the use of a carabiner. It does not matter if the carabiner is locking or not. Most importantly, the carabiner must be of round cross section for friction. Grabbing hold of the carabiner will release the friction and allow the hitch to slide freely and thus be moved appropriately. To remove the Bachmann hitch, just unclip the top loop, hold on to the carabiner and pull the cord free. This knot is frequently tied using a sling made from 1" tubular webbing. In this case wrap the webbing 3 times around the rope (this means the carabiner gate must be opened 3 times in the tying of the knot) for normal (dry) applications. There are a limited number of applications that involve repeate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
