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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] |
Bolt (fastener)
A bolt is an externally helical threaded fastener capable of being tightened or released by a twisting force ( torque) to a matching nut. The bolt has an external male thread requiring a matching nut with a pre-formed female thread. History Nuts and bolts were originally hand-crafted together, so that each nut matched its own bolt, but they were not interchangeable. This made it virtually impossible to replace lost or damaged fixers, as they were all different. Joseph Whitworth in 1841 proposed that a standard should be set, but it did not happen immediately. In 1851 the Great Exhibition of the Works of Industry of All Nations was to be held in Hyde Park, London, England, and it was decided to build the Crystal Palace as part; this had to be done in 190 days, and at reasonable cost. Research into the remains of the destroyed building in 2024 revealed a major innovation that made this possible. The construction firm responsible, Fox Henderson, decided to use nuts and bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caving Equipment
Caving equipment is equipment used by cavers and speleologists to aid and protect them while exploring caves. The term may also be used to refer to equipment used to document caves, such as photographic and surveying equipment. Originally, cave diving equipment was quite limited, but the increasing popularity of caving during the 20th century led to the creation of specialist caving equipment and companies. Due to the greatly varying conditions of caves throughout the world, there is a multitude of different equipment types and categories. Cavers exploring a largely dry system may wear a fleece one-piece undersuit with a protective oversuit while cavers exploring a very wet cave may opt to use wetsuits. Cavers in large dry systems in the tropics and in desert climates may simply opt to wear shorts and a T-shirt. History The earliest cavers in Europe and North America were limited in their explorations by a lack of suitable equipment. Explorers of the early 1800s, when caving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Access Fund
The Access Fund is a not-for-profit rock climbing advocacy group in the US. Their goals are twofold. First, keeping climbing areas open and gaining access to currently closed climbing areas. Second, they promote an ethic of responsible climbing and conservation of the climbing environment. The Access Fund was originally the access committee of the American Alpine Club and was created as the climbing community realized the need for an organization to represent climbing and climbers' rights in the US.Fields, Jenn. 20 years of the Access Fund: Climbing advocacy organization celebrates anniversary with Boulder events, '' Colorado Daily'' (October 21, 2011). The Access Fund became its own 501(c)3 organization in 1991. The organization is based out of Boulder, Colorado Boulder is a List of municipalities in Colorado#Home rule municipality, home rule city in Boulder County, Colorado, United States, and its county seat. With a population of 108,250 at the 2020 United States census, ... [...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] |
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] |
Outside (magazine)
''Outside'' is a magazine focused on the outdoors. The first issue of the ''Outside'' magazine was published in September 1977. It is published by Outside Inc., a company that also owns various other ventures. History ''Outside'' founders were Jann Wenner (the first editor in chief), William Randolph Hearst III (its first managing editor), and Jack Ford (an assistant to founding publisher Donald Welsh and a son of former U.S. President Gerald Ford Gerald Rudolph Ford Jr. (born Leslie Lynch King Jr.; July 14, 1913December 26, 2006) was the 38th president of the United States, serving from 1974 to 1977. A member of the Republican Party (United States), Republican Party, Ford assumed the p ...). Wenner sold ''Outside'' to Lawrence J. Burke two years later. Burke merged it into his magazine ''Mariah'' (founded in 1976) and after a period of using the name ''Mariah/Outside'' kept the ''Outside'' name for the merged magazine. In 2021, Burke sold ''Outside'' to Pocket Outdoor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Alpine Club
The American Alpine Club (AAC) is a non-profit member organization with more than 26,000 members. The club is housed in the American Mountaineering Center (AMC) in Golden, Colorado. Through its members, the AAC advocates for American climbers domestically and around the world; provides grants and volunteer opportunities to protect and conserve climbing areas; hosts local and national climbing festivals and events; cares for the nation's leading climbing library and mountaineering museum; manages the Hueco Rock Ranch, New River Gorge Campground, Samuel F. Pryor III Shawangunk Gateway Campground, Rumney Rattlesnake Campground, and Grand Teton Climbers' Ranch as part of a larger lodging network for climbers; and annually gives about $100,000 toward climbing, conservation, and research grants that fund adventurers who travel the world. It also maintains regional sections—with both regional staff and volunteers—throughout the United States. The AAC publishes two books, The '' Ame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stainless Steel
Stainless steel, also known as inox, corrosion-resistant steel (CRES), or rustless steel, is an iron-based alloy that contains chromium, making it resistant to rust and corrosion. Stainless steel's resistance to corrosion comes from its chromium content of 11% or more, which forms a Passivation (chemistry), passive film that protects the material and can self-healing material, self-heal when exposed to oxygen. It can be further alloyed with elements like molybdenum, carbon, nickel and nitrogen to enhance specific properties for various applications. The alloy's properties, such as luster and resistance to corrosion, are useful in many applications. Stainless steel can be rolled into Sheet metal, sheets, plates, bars, wire, and tubing. These can be used in cookware, cutlery, surgical instruments, major appliances, vehicles, construction material in large buildings, industrial equipment (e.g., in paper mills, chemical plants, water treatment), and storage tanks and tankers for ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanium
Titanium is a chemical element; it has symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in sea water, aqua regia, and chlorine. Titanium was discovered in Cornwall, Great Britain, by William Gregor in 1791 and was named by Martin Heinrich Klaproth after the Titans of Greek mythology. The element occurs within a number of minerals, principally rutile and ilmenite, which are widely distributed in the Earth's crust and lithosphere; it is found in almost all living things, as well as bodies of water, rocks, and soils. The metal is extracted from its principal mineral ores by the Kroll and Hunter processes. The most common compound, titanium dioxide (TiO2), is a popular photocatalyst and is used in the manufacture of white pigments. Other compounds include titanium tetrachloride (TiCl4), a component of smoke screens and cata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stress Corrosion Cracking
Stress corrosion cracking (SCC) is the growth of crack formation in a corrosive environment. It can lead to unexpected and sudden failure of normally ductile metal alloys subjected to a tensile stress, especially at elevated temperature. SCC is highly chemically specific in that certain alloys are likely to undergo SCC only when exposed to a small number of chemical environments. The chemical environment that causes SCC for a given alloy is often one which is only mildly corrosive to the metal. Hence, metal parts with severe SCC can appear bright and shiny, while being filled with microscopic cracks. This factor makes it common for SCC to go undetected prior to failure. SCC often progresses rapidly, and is more common among alloys than pure metals. The specific environment is of crucial importance, and only very small concentrations of certain highly active chemicals are needed to produce catastrophic cracking, often leading to devastating and unexpected failure. The stresse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Competition Lead Climbing
Competition climbing is a form of regulated rock-climbing competition held indoors on purpose-built artificial climbing walls (earlier versions were held on external natural rock surfaces). The three competition climbing disciplines are lead climbing, bouldering, and speed climbing. The result of multiple disciplines can be used in a "combined" format to determine an all-round winner (or the "combined" winner). Competition climbing is sometimes called "sport climbing", which is the name given to pre-bolted lead climbing. In competition lead climbing, competitors start at the bottom of a pre-bolted sport climbing route and lead-climb to touch or secure the highest climbing hold possible within a set time limit on a single attempt, making sure to clip the rope into pre-placed quickdraws while ascending. In competition bouldering, competitors climb short bouldering problems without a rope, with an emphasis on the number of problems completed, and the attempts necessary to do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
