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Crevasse Rescue
Crevasse rescue is the process of retrieving a climber from a crevasse in a glacier. Because of the frequency with which climbers break through the snow over a crevasse and fall in, crevasse rescue technique is a standard part of climbing education. The basic assumption of crevasse rescue is that two or more climbers are tied together with a climbing rope, forming a rope team; a standard number is three, one on each end and one in the middle, which means there are two available to hold a falling climber, but is not as complicated to manage as large numbers of people attached to a single rope. When the snow gives way under the victim, the others on the team must immediately prepare for the impending yanks, usually by flopping down and digging ice axes and knees (or boots if not wearing crampons) into the snow in a self-arrest position, facing away from the crevasse if possible, and holding tight until everything stops moving. Many crevasses are small or slanted, and the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crevasse Rescue1
A crevasse is a deep crack, that forms in a glacier or ice sheet that can be a few inches across to over 40 feet. Crevasses form as a result of the movement and resulting stress associated with the shear stress generated when two semi-rigid pieces above a plastic substrate have different rates of movement. The resulting intensity of the shear stress causes a breakage along the faces. Description Crevasses often have vertical or near-vertical walls, which can then melt and create seracs, arches, and other ice formations. These walls sometimes expose layers that represent the glacier's stratigraphy. Crevasse size often depends upon the amount of liquid water present in the glacier. A crevasse may be as deep as 45 metres and as wide as 20 metres. by |
Climbing Harness
A climbing harness is a device which allows a climber access to the safety of a rope. It is used in rock and 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 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, which has natural shock-absorbing stretch. In via ferr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Freedom Of The Hills
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypothermia
Hypothermia is defined as a body core temperature below in humans. Symptoms depend on the temperature. In mild hypothermia, there is shivering and mental confusion. In moderate hypothermia, shivering stops and confusion increases. In severe hypothermia, there may be hallucinations and #Paradoxical undressing, paradoxical undressing, in which a person removes their clothing, as well as an increased risk of the cardiac arrest, heart stopping. Hypothermia has two main types of causes. It classically occurs from exposure to cold weather and cold water immersion. It may also occur from any condition that decreases heat production or increases heat loss. Commonly, this includes alcohol intoxication but may also include hypoglycemia, low blood sugar, anorexia nervosa, anorexia and advanced age. Human body temperature, Body temperature is usually maintained near a constant level of through thermoregulation. Efforts to increase body temperature involve shivering, increased voluntary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denali
Denali (; also known as Mount McKinley, its former official name) is the highest mountain peak in North America, with a summit elevation of above sea level. With a topographic prominence of and a topographic isolation of , Denali is the third most prominent and third most isolated peak on Earth, after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, Denali is the centerpiece of Denali National Park and Preserve. The Koyukon people who inhabit the area around the mountain have referred to the peak as "Denali" for centuries. In 1896, a gold prospector named it "Mount McKinley" in support of then-presidential candidate William McKinley; that name was the official name recognized by the federal government of the United States from 1917 until 2015. In August 2015, 40 years after Alaska had done so, the United States Department of the Interior announced the change of the official name of the mountain to Denali. In 1903 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chris Kerrebrock
Chris is a short form of various names including Christopher, Christian, Christina, Christine, and Christos. Chris is also used as a name in its own right, however it is not as common. People with the given name *Chris Abani (born 1966), Nigerian author *Chris Abrahams (born 1961), Sydney-based jazz pianist * Chris Adams (other), multiple people *Chris Adcock (born 1989), English internationally elite badminton player *Chris Albright (born 1979), American former soccer player * Chris Alcaide (1923–2004), American actor * Chris Amon (1943–2016), former New Zealand motor racing driver * Chris Andersen (born 1978), American basketball player *Chris Anderson (other), multiple people * Chris Angel (wrestler) (born 1982), Puerto Rican professional wrestler *Chris Anker Sørensen (born 1984), Danish cycler * Chris Anstey (born 1975), Australian basketball player * Chris Anthony, American voice actress * Chris Antley (1966–2000), champion American jockey * Chr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jim Wickwire
Jim Wickwire (born June 8, 1940) is the first American to summit K2, the second highest mountain in the world (summit at ). Wickwire is also known for surviving an overnight solo bivouac on K2 at an elevation above ; considered "one of the most notorious bivouacs in mountaineering history". Early life Wickwire was raised in the small town of Ephrata, Washington, by James and Dorothy Wickwire. He played football for Ephrata High School and Columbia Basin College in Pasco, Washington, where he was part of an unbeaten team in 1961 that was later invited to the Junior Rose Bowl. Wickwire chose to leave football and enroll in Gonzaga University, where he graduated law school. He trained and has practiced as a lawyer. K2: summit and bivouac K2 has been termed the "Savage Mountain" in writings about its high altitude climbing. Its dangers include notorious weather conditions, stretches of technical climbing on rock and ice, marked cliff exposures, and enormous, high-altitude s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Bilgeri
Georg Bilgeri (11 October 1873 – 4 December 1934) was an officer in the Austro–Hungarian Army, mountaineer, and Austrian pioneer of skiing. Bilgeri learned to ski in Gargellen about 1893. Military career As a Lieutenant in the Tyrolean Imperial Hunters (Tiroler Kaiserjäger Regiment No. 4), Bilgeri instituted ski training in the high Alps as early as 1896 and became the creator of mountain and ski training in the Austro-Hungarian army. Bilgeri led military patrols in winter treks in the Zillertal Alps (1899) and to Kitzbühel (1905). From 1905-08 he led instructor courses for officers. Bilgeri directed a military ski factory in Salzburg from 1906-10. In 1908-09 he was a commander of border guards in the Dolomites. He was an officer of the World War I National Defense Command in Tyrol, leading the formation and training of the Mountain guide companies. He retired in 1920 with the rank of Lieutenant Colonel, and later was awarded Colonel. Alpine ski instructor He provid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jumar
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 cl ... [...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" (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, 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 damage to the rope it is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulley
A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt. In the case of a pulley supported by a frame or shell that does not transfer power to a shaft, but is used to guide the cable or exert a force, the supporting shell is called a block, and the pulley may be called a sheave. A pulley may have a groove or grooves between flanges around its circumference to locate the cable or belt. The drive element of a pulley system can be a rope, cable, belt, or chain. The earliest evidence of pulleys dates back to Ancient Egypt in the Twelfth Dynasty (1991-1802 BCE) and Mesopotamia in the early 2nd millennium BCE. In Roman Egypt, Hero of Alexandria (c. 10-70 CE) identified the pulley as one of six simple machines used to lift weights. Pulleys are assembled to form a block and tackle in order to provide mechanical advantage to apply large forces. Pulle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crevasse Rescue2
A crevasse is a deep crack, that forms in a glacier or ice sheet that can be a few inches across to over 40 feet. Crevasses form as a result of the movement and resulting stress associated with the shear stress generated when two semi-rigid pieces above a plastic substrate have different rates of movement. The resulting intensity of the shear stress causes a breakage along the faces. Description Crevasses often have vertical or near-vertical walls, which can then melt and create seracs, arches, and other ice formations. These walls sometimes expose layers that represent the glacier's stratigraphy. Crevasse size often depends upon the amount of liquid water present in the glacier. A crevasse may be as deep as 45 metres and as wide as 20 metres. by |
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