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Abseil Device
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 lowering off, in which the rope attached to the person descending is paid out by their belayer. Description The technique is used by climbers, mountaineers, cavers, 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 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 the point where it can be controlled comfortably. These ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elizabeth Furnace - Repeling
Elizabeth or Elisabeth may refer to: People * Elizabeth (given name), a female given name (including people with that name) * Empress Elisabeth (other), lists various empresses named ''Elisabeth'' or ''Elizabeth'' * Princess Elizabeth (other), lists various princesses named ''Elizabeth'' * Queen Elizabeth (other), lists various queens named ''Elizabeth'' * Saint Elizabeth (other), lists various saints named ''Elizabeth'' or ''Elisabeth'' ** Elizabeth (biblical figure), mother of John the Baptist Film and television * ''Elizabeth R'', 1971 * ''Elizabeth'' (TV series), 1980 * ''Elizabeth'' (film), 1998 * '' Elizabeth: The Golden Age'', 2007 Music * ''Elisabeth'' (Elisabeth Andreassen album) * ''Elisabeth'' (Zach Bryan album) * Elizabeth (band), an American psychedelic rock/progressive rock band active from 1967 to 1970 * ''Elizabeth'' (Lisa album) * ''Elizabeth'', an album by Killah Priest * "Elizabeth" (Ghost song) * "Elizabeth" (The S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petit Dru
The Aiguille du Dru (also the Dru or the Drus; French, Les Drus) is a mountain in the Mont Blanc massif in the French Alps. It is situated to the east of the village of Les Praz in the Chamonix valley. "Aiguille" means "needle" in French. The mountain's highest summit is: * ''Grande Aiguille du Dru'' (or the ''Grand Dru'') 3,754 m Another, slightly lower sub-summit is: * ''Petite Aiguille du Dru'' (or the ''Petit Dru'') 3,733 m. The two summits are on the west ridge of the Aiguille Verte (4,122 m) and are connected to each other by the ''Brèche du Dru'' (3,697 m). The north face of the ''Petit Dru'' is considered one of the six great north faces of the Alps. The southwest "Bonatti Pillar" and its eponymous climbing route were destroyed in a 2005 rock fall. Ascents The first ascent of the ''Grand Dru'' was by British alpinists Clinton Thomas Dent and James Walker Hartley, with guides Alexander Burgener and K. Maurer, who climbed it via the south-east face on 12 September 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klemheist Knot
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 take ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prusik
A Prusik ( ) is a friction hitch or knot used to attach a loop of cord around a rope, applied in climbing, canyoneering, mountaineering, caving, rope rescue, ziplining, and by arborists. The term Prusik is a name for both the loops of cord used to tie the hitch and the hitch itself, and the verb is "to prusik" or "prusiking" (i.e. using a Prusik to ascend). More casually, the term is used for any friction hitch or device that can grab a rope (see autoblock). Due to the pronunciation, the word is often misspelled Prussik, Prussick, or Prussic. The Prusik hitch is named after its putative inventor, the Austrian mountaineer Karl Prusik. It was shown in a 1931 Austrian mountaineering manual for rope ascending. It was used on several mountaineering routes of the era to ascend the final summit, where a rope could be thrown over the top and anchored so that climbers could attain the summit by prusiking up the other side of the rope. A Prusik made from cord does little or no damag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friction Hitch
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. Types of friction include dry, fluid, lubricated, skin, and internal -- an incomplete list. The study of the processes involved is called tribology, and has a history of more than 2000 years. Friction can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Another important consequence of many types of friction can be wear, which may lead to performance degradation or damage to components. It is known that frictional energy losses account for about 20% of the total energy expenditure of the world. As briefly discussed later, there are many different contributors to the retarding force in friction, ranging from asperity deformation to the generation of charges and changes in local structure. When two bodies in contact move relative to each other, due to these various ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suspension Trauma
Suspension trauma, also known as orthostatic shock while suspended, harness hang syndrome (HHS), suspension syndrome, or orthostatic intolerance, is an effect which occurs when the human body is held upright without any movement for a period of time. If the person is strapped into a harness or tied to an upright object they will eventually suffer the central ischaemic response (also known as syncope or fainting). Fainting while remaining vertical increases the risk of death from cerebral hypoxia. Since there is no evidence that these effects are specifically due to trauma, or caused by the harness itself, climbing medicine authorities have argued against the terminology of suspension trauma or harness hang syndrome and instead termed this simply "suspension syndrome".Hawkins SC, Simon RB, Beissinger JP, Simon D. Vertical Aid: Essential Wilderness Medicine for Climbers, Trekkers, and Mountaineers. New York: The Countryman Press, 2017. People at risk of suspension syndrome includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climbing Equipment
Climbing equipment refers to a broad range of manufactured gear that is used in the activity or sport of climbing. Notable groups include: * Alpine climbing equipment as is used in alpine climbing and mountaineering * Deep-water soloing equipment as is used in deep-water soloing * Ice climbing equipment as is used in ice climbing and mixed climbing * Mixed climbing equipment as used in mixed climbing and dry-tooling * Mountaineering equipment as is used in mountaineering and alpine climbing * Rock-climbing equipment as is used in aid climbing, bouldering, competition climbing, free solo climbing, multi-pitch climbing (including big wall climbing), rope solo climbing, sport climbing Sport climbing (or bolted climbing) is a type of free climbing in the sport of rock climbing where the Lead climbing, lead climber clips their climbing rope, rope — via a quickdraw — into pre-drilled in-situ bolt (climbing), bolts for their ..., traditional climbing and top rope climbin ... [...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] |
Rock-climbing Equipment
Rock-climbing equipment varies with the specific type of climbing that is undertaken. Bouldering needs the least equipment outside of climbing shoes, climbing chalk and optional crash pads. Sport climbing adds ropes, harnesses, belay devices, and quickdraws to clip into pre-drilled bolts. Traditional climbing adds the need to carry a "rack" of temporary passive and active protection devices. Multi-pitch climbing, and the related big wall climbing, adds devices to assist in ascending and descending fixed ropes. Finally, aid climbing uses unique equipment to give mechanical assistance to the climber in their upward movement (e.g. aiders). Advances in equipment are a key part of the rock climbing history, starting with the climbing rope. Modern devices enable climbers to perform tasks previously done manually, with greater control – in all conditions – and with less effort. Examples of replacements include the harness (replaced tying the rope around the waist), th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piton
A piton (; also called ''pin'' or ''peg'') in big wall climbing and in aid climbing is a metal spike (usually steel) that is driven into a crack or seam in the climbing surface using a Rock climbing hammer, climbing hammer, and which acts as an anchor for protection (climbing), protecting the climber from falling or to assist progress in aid climbing. Pitons are equipped with an eye hole or a ring to which a carabiner is attached; the carabiner can then be directly or indirectly connected to a climbing rope. Pitons were the original form of protection (climbing), protection and are still used where there is no alternative. Repeated hammering and extraction of pitons damage the rock, and climbers who subscribe to the clean climbing ethic avoid their use as much as possible. With the popularization of clean climbing in the 1970s, pitons were largely replaced by faster and easier-to-use clean protection, such as nut (climbing), nuts and spring-loaded camming device, camming devi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolt (climbing)
In rock climbing, a bolt is a permanent anchor fixed into a hole drilled in the rock as a form of climbing protection. Most bolts are either self-anchoring expansion bolts or fixed in place with liquid resin. Climbing routes that are bolted are known as sport climbs, and those that do not use (or allow) bolts, are known as traditional climbs. Description While bolts are commonplace in rock and gym climbing there is no universal vocabulary to describe them. Generally, a bolt hanger (or a fixed hanger) is a combination of a fixed bolt and a specialized stainless steel hanger designed to accept a carabiner, whereas in certain regions a bolt runner (or a carrot) describes a hangerless bolt (where the climber must provide their own hanger bracket such as a rivet hanger). A climbing rope is then clipped into the carabiner. Generally quickdraws or slings are employed between bolt hangers and the rope to reduce drag when ascending, belaying and rappelling. Types Variations of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traditional Climbing
Traditional climbing (or trad climbing) is a type of free climbing in rock climbing where the lead climber places removable protection while simultaneously ascending the route; when the lead climber has completed the route, the second climber (or belayer) then removes this protection as they ascend the route. Traditional climbing differs from sport climbing where the protection equipment is already pre-drilled into the rock in the form of bolts. Traditional climbing is still the dominant format on longer multi-pitch routes, including alpine and big wall. Traditional climbing carries a much higher level of risk than bolted sport climbing as the climber may not have placed the protection equipment correctly while ascending the route, or there may be few opportunities to insert satisfactory protection (e.g. on very difficult routes). Traditional climbing was once the dominant form of free climbing but since the mid-1980s, sport climbing — and its related form of competition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
