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Petzl
Petzl is a French manufacturer of climbing gear, caving gear, work-at-height equipment, and headlamps based in Crolles (near Grenoble), France. The company was created by the cave explorer Fernand Petzl in the mid-1970s. Their three specialties are: *Vertical sports: equipment for mountaineering, climbing, caving, etc. *Work at height and rescue: solutions for progression and safety in difficult-access worksites and in technical rescue. *Headlamps/head torches that provide hands free lighting. History Fernand Petzl, born in 1912, began his caving career in the late 1920s and early 1930s. In 1936, Petzl was introduced to, then small-time caver, Pierre Chevalier. The two began work on improving the technology behind their sport. In 1943, Chevalier designed and tested the first nylon rope to replace caving ladders. This technology provided the foundation for nearly all vertical safety methods to come. Chevalier's innovation led to the first 1,000 meter cave descent when Petzl exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petzl Tikka Xp
Petzl is a French manufacturer of climbing gear, caving gear, work-at-height equipment, and headlamp (outdoor), headlamps based in Crolles (near Grenoble), France. The company was created by the cave explorer Fernand Petzl in the mid-1970s. Their three specialties are: *Vertical sports: equipment for mountaineering, climbing, caving, etc. *Work at height and rescue: solutions for progression and safety in difficult-access worksites and in technical rescue. *Headlamps/head torches that provide hands free lighting. History Fernand Petzl, born in 1912, began his caving career in the late 1920s and early 1930s. In 1936, Petzl was introduced to, then small-time caver, Pierre Chevalier. The two began work on improving the technology behind their sport. In 1943, Chevalier designed and tested the first nylon rope to replace caving ladders. This technology provided the foundation for nearly all vertical safety methods to come. Chevalier's innovation led to the first 1,000 meter cave de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fernand Petzl
Fernand Petzl (April 7, 1913 – May 31, 2003) was a caver and manufacturer of outdoor equipment under the brand name Petzl. Petzl lived most of his life in the village of Saint-Ismier (near Grenoble), France at the foot of the mountain Dent De Crolles. He first went caving in Trou du Glaz in 1933, and was immediately captivated by the idea of exploring beyond the cave's known limits. Subsequent explorations there with Pierre Chevalier, Charles Petit-Didier and others culminated in connections to other caves in the massif, forming the Réseau de la Dent de Crolles which, in 1947, became the deepest cave in the world. Petzl also participated in explorations in the Gouffre Berger The Gouffre Berger is a French cave discovered on 24 May 1953 by Joseph Berger, Bouvet, Ruiz de Arcaute and Marc Jouffrey. From 1953 to 1963, it was regarded as the deepest cave in the world at , relinquishing this title to the previous contender, ..., which set a new world depth record in 1956 as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grigri
A Grigri (styled as GriGri or GRIGRI) is an assisted braking belay device manufactured by Petzl designed to help secure rock-climbing, rappelling, and rope-acrobatic activities. Its main characteristic is a clutch that assists in braking under a shock load. The success of this device has led to ''grigri'' becoming a common name for devices of this type. In 2011 a new version, the Grigri 2, was released to replace the original 1991 model. Petzl released the Grigri+ in 2017, adding safety features to the original design, and 2019 saw the release of an updated version of the device, simply called the Grigri. It is named for the African amulet gris-gris, believed to protect the wearer from evil. Mechanism of operation The Grigri works by pinching the rope when it is moving quickly (like in a fall), making it an assisted braking belay device. This function distinguishes it from traditional belay devices such as a Sticht plate or an ATC, whose braking mechanisms depend entirely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caving
Caving – also known as spelunking in the United States and Canada and potholing in the United Kingdom and Ireland – is the recreational pastime of exploring wild cave systems (as distinguished from show caves). In contrast, speleology is the scientific study of caves and the cave environment.Caving in New Zealand (from Te Ara: The Encyclopedia of New Zealand, Accessed 2012-11.) The challenges involved in caving vary according to the cave being visited; in addition to the total absence of light beyond the entrance, negotiating pitches, squeezes, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dent De Crolles
The Dent de Crolles () is a karstic mountain (2,062 m) of the Chartreuse Mountains range, north east of Grenoble, Isère, France. It has a characteristic "tooth-like" profile and is easily recognizable in the Isère Valley (Grésivaudan) in the Grenoble area. The French word "dent" means tooth and "de Crolles" is derived from the town of Crolles, located next to the mountain. Geography The Dent de Crolles is a karstic mountain (2,062 m) of the Chartreuse Mountains range, north east of Grenoble, Isère, France. The French word "dent" means tooth and "de Crolles" is derived from the town of Crolles, located next to the mountain. It is easily recognizable from the Val-d´Isère (Grésivaudan) in the Grenoble area. Cave system The réseau de la Dent de Crolles, which lies beneath the summit plateau, is one of the most complex and longest cave systems in Europe, and is considered to be one of the birth places of modern caving. Its first detailed exploration was during World War II b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emily Harrington
Emily Harrington (born August 17, 1986) is an American professional rock climber and mountaineer. She is a five-time US National Champion in sport lead climbing, runner-up in the 2005 IFSC Climbing World Championships, and has made the female first-ascents of several routes. Early life Emily Harrington was born on August 17, 1986, in Boulder, Colorado. Her competitiveness pushed her to develop her climbing skills from an early age. She began climbing artificial walls and competed with her local gym's climbing team. From there, she became a professional sport climber and expanded into the worlds of rock and mountain climbing. Harrington studied international affairs with an emphasis on politics in Sub-Saharan Africa at the University of Colorado at Boulder. She graduated in 2007 and joined The North Face climbing team in 2008. Climbing career Harrington has been the US National Champion in sport climbing five times (2004, 2005, 2006, 2008, 2009). She was also named the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gouffre Berger
The Gouffre Berger is a French cave discovered on 24 May 1953 by Joseph Berger, Bouvet, Ruiz de Arcaute and Marc Jouffrey. From 1953 to 1963, it was regarded as the deepest cave in the world at , relinquishing this title to the previous contender, Pierre Saint Martin, in 1964, after further exploration. The Gouffre Berger is now ranked 37th deepest cave in the world, and the 4th in France. To return from the bottom of the cave back to the surface can take between 15 and 30 hours, without long breaks. In 1967, Ken Pearce, a metallurgy lecturer from Britain, descended with the Pegasus Caving Club team from Nottingham UK, organised and led by Peter Watkinson, and along with a dive, reached a depth of . They emerged after 13 days underground, having set a new world record at the time. In 1968, B Leger and J Dubois reached a depth of . This record was held until July 1982, when Patrick Penez attained . In 1990, a breakthrough was made, connecting the cave to the nearby "Scialet de la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascender (climbing)
An ascender is a device (usually mechanical) used for directly ascending a rope, or for facilitating protection with a fixed rope when climbing on very steep mountain terrain. Ascenders can also be used as a braking component within a rope hauling system, often used in rescue situations. Use Ascenders are usually used in pairs, and offer similar functionality to friction knots, but are faster, safer and easier to use, albeit still with consequences in weight and in security (as ascenders can, even with a locking carabiner, come off the rope, and fail by shredding the rope at high loads, rather than slipping and fusing as with friction knots). A mechanical ascender employs a cam which allows the device to slide freely in the intended direction of movement, but provide a firm grip on the rope when pulled in the opposite direction. To prevent an ascender from accidentally coming off the rope, a locking mechanism or trigger is deployed. The ascender is first attached to the cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headlamp (outdoor)
A headlamp or headlight (known as a head torch in the UK) is a light source affixed to the head for outdoor activities at night or in dark conditions such as caving, orienteering, hiking, skiing, backpacking, camping, mountaineering or mountain biking. Headlamps may also be used in adventure races. Headlamps are often used by workers in underground mining, search and rescue, surgeons, and by other workers who need hands-free lighting. Description Headlamps are usually powered by three or four AA or AAA batteries. Systems with heavy batteries (4xAA or more) are usually designed so that the light emitter is positioned near the front of the head, with the battery compartment at the rear of the head. The headlamp is strapped to the head or helmet with an elasticized strap. It is sometimes possible to completely disconnect a headlamp's battery pack, for storage on a belt or in a pocket. Lighter headlamp systems are strapped to the user's head by a single band; heavier ones utiliz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crolles
Crolles () is a commune in the Isère department in southeastern France. It is located in the Isère valley, 20 km northeast of Grenoble, upstream on the river Isère. It has given its name to the Dent de Crolles mountain (2,062 m), which stands just above the city. Industries Crolles hosts the biggest semiconductor fabrication plant in France (employing 4,000 people, for a total investment of 3 billion euros). First founded by STMicroelectronics in the 1980s, the recent development (Crolles 2, 2003) results from a joint-venture with Philips (today NXP semiconductors) and Motorola. Crolles is the birthplace of Petzl, manufacturers of safety equipment for mountaineering, caving and vertical safety in civil engineering, which still has its headquarters there and is also the site of the main manufacturing plant of Teisseire, a beverage company now owned by Britvic. Population See also *Communes of the Isère department The following is a list of the 512 communes in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hidden Champions
Hidden champions are relatively small but highly successful companies that are concealed behind a curtain of inconspicuousness, invisibility, and sometimes secrecy. The term was coined by Hermann Simon. He first used the term as a title of a publication in a scientific German management journal, describing the small, highly specialized world-market leaders in Germany. According to his definition, a company must meet three criteria to be considered a hidden champion: * Number one, two, or three in the global market, or number one on the company's continent, determined by market share * Revenue below $5 billion * Low level of public awareness Discovering hidden champions The first English book about the subject was Hermann Simon's ''Hidden champions: lessons from 500 of the world's best unknown companies''. The book explores how Germany was able to consistently be (at the time) the number one exporter in the world. While Germany has global corporations like Volkswagen, Siemens, B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headlamp (outdoor)
A headlamp or headlight (known as a head torch in the UK) is a light source affixed to the head for outdoor activities at night or in dark conditions such as caving, orienteering, hiking, skiing, backpacking, camping, mountaineering or mountain biking. Headlamps may also be used in adventure races. Headlamps are often used by workers in underground mining, search and rescue, surgeons, and by other workers who need hands-free lighting. Description Headlamps are usually powered by three or four AA or AAA batteries. Systems with heavy batteries (4xAA or more) are usually designed so that the light emitter is positioned near the front of the head, with the battery compartment at the rear of the head. The headlamp is strapped to the head or helmet with an elasticized strap. It is sometimes possible to completely disconnect a headlamp's battery pack, for storage on a belt or in a pocket. Lighter headlamp systems are strapped to the user's head by a single band; heavier ones utiliz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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