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Copperhead (climbing)
In rock climbing, a copperhead is a small nut with a head made of soft metal on a loop of wire, originally copper or brass, later aluminium. Copperheads are most often placed into small shallow seams and crevices by pounding or hammering them in to place, with a climbing hammer, sometimes with the aid of metal rod, chisel, or punch. The malleability of the soft metal head makes copperheads conform to the rock and grip better than other devices, and are often the only protection that will stay fixed in many placements. Their small size and low strength makes them among the poorest kinds of protection; their main use is in aid climbing where a placement that will just support the weight of the climber can be used to make progress, even though it would be useless in a fall. Variations such as Double-heads and Circleheads can also be used. See also * Piton A piton (; also called ''pin'' or ''peg'') in big wall climbing and in aid climbing is a metal spike (usually steel) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copperheads
Copperhead may refer to: Snakes * ''Agkistrodon contortrix'', or eastern copperhead, a venomous pit viper species found in parts of North America * '' Agkistrodon laticinctus'', or broad-banded copperhead, a pit viper species found in the southern United States * '' Austrelaps'', or Australian copperhead, a genus of venomous elapids found in southern Australia and Tasmania * '' Coelognathus radiata'', or the copperhead rat snake, a non-venomous species found in southern Asia * '' Deinagkistrodon acutus'', or the Chinese copperhead, a venomous pit viper species found in Southeast Asia Art, entertainment, and media Fictional entities * Copperhead (DC Comics), DC Comics supervillain and member of the Secret Society of Super-Villains * Copperhead (G.I. Joe), villain in the G.I. Joe universe, member of Cobra * Copperhead (Marvel Comics), several characters * "Copperhead", codename of Vernita Green in the movie ''Kill Bill'' * The Copperhead, the masked hero of the 1940 Republic se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Climbing
Rock climbing is a climbing sports discipline that involves ascending climbing routes, routes consisting of natural rock in an outdoor environment, or on artificial resin climbing walls in a mostly indoor environment. Routes are documented in climbing guidebook, guidebooks, and on online databases, detailing how to climb the route (called the beta (climbing), beta), and who made the first ascent (or FA) and the coveted First ascent#In rock climbing, first free ascent (or FFA). Climbers will try to ascend a route onsight, however, a climber can spend years projecting (climbing), projecting a route before they make a redpoint (climbing), redpoint ascent. Routes range from a few metres to over a in height, and traverse (climbing), traverses can reach in length. They include slab climbing, slabs, face climbing, faces, crack climbing, cracks and overhang (climbing), overhangs/roofs. Popular rock types are granite (e.g. El Capitan), limestone (e.g. Verdon Gorge), and sandstone (e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nut (climbing)
In rock climbing, a nut (or ''chock'' or ''chockstone'' or wire for the smallest versions) is a metal wedge threaded on a wire that climbers use for protection by wedging it into a crack in the rock. Quickdraws are clipped to the nut wire by the ascending climber and the rope threads through the quickdraw. Nuts come in a variety of sizes and styles, and several different brands are made by competing manufacturers. Most nuts are made of aluminum. Larger nuts may be threaded on Dyneema cord instead of wire, but this has become unusual. The very smallest nuts are known as ''micronuts'' and may be made of brass or other metal, and typically have their wires soldered into them, instead of looped through drilled holes. They are mostly used in aid climbing, and their value as protection, arresting a climber's fall, is marginal because of both their low breaking strength and their tiny surface area (the HB 0 measures about 4 x 7 x 2.5 mm) in contact with the rock, though this can be o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable, unalloyed metallic form. This means that copper is a native metal. This led to very early human use in several regions, from . Thousands of years later, it was the first metal to be smelted from sulfide ores, ; the first metal to be cast into a shape in a mold, ; and the first metal to be purposely alloyed with another metal, tin, to create bronze, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brass
Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, but copper typically has the larger proportion, generally copper and zinc. In use since prehistoric times, it is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure. Brass is similar to bronze, a copper alloy that contains tin instead of zinc. Both bronze and brass may include small proportions of a range of other Chemical element, elements including arsenic, lead, phosphorus, aluminium, manganese and silicon. Historically, the distinction between the two alloys has been less consistent and clear, and increasingly museums use the more general term "list of copper alloys, copper alloy". Brass has long been a popular material for its bright gold-like appearance and is still used for drawer pulls and door handle, doorknobs. It has also been widely used to ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has a great affinity towards oxygen, passivation (chemistry), forming a protective layer of aluminium oxide, oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, magnetism, nonmagnetic, and ductility, ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the abundance of the chemical elements, 12th-most abundant element in the universe. The radioactive decay, radioactivity of aluminium-26, 26Al leads to it being used in radiometric dating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Climbing Hammer
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Rock climbing hammers, also known as wall hammers, big wall hammers, yosemite hammers, or aid hammers, are a type of specialty hammer used mainly in aid climbing for the placement and removal of pitons, copper-heads, and circle-heads. They can also be used in the initial placement of fixed anchors ( bolts) or the forceful removal of stuck free climbing protection. File:Climbing Hammer.png, Chouinard Climbing Hammer File:Climbing hammer.png, Climbing hammer See also * Bolt * Climbing equipment * Piton References Hammer A hammer is a tool, most often a hand tool, consisting of a weighted "head" fixed to a long handle that is swung to deliver an impact to a small area of an object. This can be, for example, to drive nail (fastener), nails into wood, to sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protection (climbing)
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) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aid Climbing
Aid climbing is a form of rock climbing that uses mechanical devices and equipment, such as aiders (or ladders), for upward momentum. Aid climbing is contrasted with free climbing (in both its traditional or sport free climbing formats), which only uses mechanical equipment for protection, but not to assist in upward momentum. Aid climbing can involve hammering in permanent pitons and bolts, into which the aiders are clipped, but there is also 'clean aid climbing' which avoids any hammering, and only uses removable placements. While aid climbing traces its origins to the start of all climbing when ladders and pitons were common, its use in single-pitch climbing waned in the early 20th century with the rise of free climbing. At the same time, the Dolomites became the birthplace of modern " big wall aid climbing", where pioneers like Emilio Comici developed the early tools and techniques. Aid climbing's "golden age" was in the 1960s and 1970s on Yosemite's granite big ... [...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] |
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] |
