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Aerials Water Ramps
Water ramps into oversized pools, ponds, or lakes are constructed as training locations for aerial skiing, mogul skiing, and snowboarding acrobatics events. Such structures typically comprise three sections: in-run, a kicker, and a water surface for landing. They permit the practice of new skills with reduced risk, as the impact of a water landing is less dangerous than a comparable impact on compacted snow. History Water ramp training for snow ski aerials became an indispensable professional training tool when Bob Salerno, Frank Bare, Jr., Hans Ribi and Jeff Chumas built a ramp capable of breaking world records in 1978. This first world-class water ramp was built at Nordic Valley ski resort. Bare performed the first recorded double twisting triple back flip and triple twisting triple back flip in 1979 at Nordic Valley, and four years later he was the first to perform a quad flip on snow. As no comparable water ramps existed elsewhere, skiers from all over North America trained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Ramp 8X10-1
Water (chemical formula ) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent). It is vital for all known forms of life, despite not providing food, energy or organic micronutrients. Its chemical formula, H2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. "Water" is also the name of the liquid state of H2O at standard temperature and pressure. A number of natural states of water exist. It forms precipitation in the form of rain and aerosols in the form of fog. Clouds consist of suspended droplets of water and ice, its solid state. When finely divided, crystalline ice may precipitate in the form of snow. The gaseous state of water is steam or water vapor. Water covers ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Ski Team
The U.S. Ski Team, operating under the auspices of U.S. Ski & Snowboard, develops and supports men's and women's athletes in the sports of alpine skiing, freestyle skiing, cross-country, ski jumping, and Nordic combined. Since 1974 the team and association have been headquartered in Park City, Utah. These individuals represent the best athletes in the country for their respective sports and compete as a team at the national, world and Olympic level. History ''*The first U.S. Ski Team was officially named in 1965 for the 1966 season, however the United States participated in skiing at all Olympic Winter Games and sent various athletes to World Championships prior to the '66 season.'' 1860s - 1880s Early Ski Clubs and Ski Tournaments in the U.S. Ski clubs appeared in the United States starting in 1861, in California. Norwegian "snowshoe" downhill races are noted in Sierra and Rocky Mountain mining camps. The Nansen Ski Club of Berlin, New Hampshire, was founded by Norwegian im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freestyle Skiing
Freestyle skiing is a skiing discipline comprising aerials, Mogul Skiing, moguls, Ski Cross, cross, Half-pipe skiing, half-pipe, slopestyle and big air as part of the Freestyle skiing at the Winter Olympics, Winter Olympics. It can consist of a skier performing aerial flips and spins and can include skiers sliding rails and boxes on their skis. Known as "hot-dogging" in the early 1970s, it is also commonly referred to as freeskiing, jibbing, as well as many other names, around the world. History Ski acrobatics have been practiced since the 1930s. Aerial skiing was popularized in the 1950s by Olympic gold medalist Stein Eriksen. Early US competitions were held in the mid-1960s. In 1969, Waterville Valley Ski Area in New Hampshire, formed the first freestyle instruction program, making the resort the birthplace of freestyle skiing. The following year, Corcoran and Doug Pfeiffer, organized the first National Open Championships of Freestyle Skiing on the Sunnyside trails. In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Frame
Steel frame is a building technique with a "skeleton frame" of vertical steel columns and horizontal I-beams, constructed in a rectangular grid to support the floors, roof and walls of a building which are all attached to the frame. The development of this technique made the construction of the skyscraper possible. Concept The rolled steel "profile" or cross section of steel columns takes the shape of the letter "". The two wide flanges of a column are thicker and wider than the flanges on a beam, to better withstand compressive stress in the structure. Square and round tubular sections of steel can also be used, often filled with concrete. Steel beams are connected to the columns with bolts and threaded fasteners, and historically connected by rivets. The central "web" of the steel I-beam is often wider than a column web to resist the higher bending moments that occur in beams. Wide sheets of steel deck can be used to cover the top of the steel frame as a "form" or corrugated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structural Stability
In mathematics, structural stability is a fundamental property of a dynamical system which means that the qualitative behavior of the trajectories is unaffected by small perturbations (to be exact ''C''1-small perturbations). Examples of such qualitative properties are numbers of fixed points and periodic orbits (but not their periods). Unlike Lyapunov stability, which considers perturbations of initial conditions for a fixed system, structural stability deals with perturbations of the system itself. Variants of this notion apply to systems of ordinary differential equations, vector fields on smooth manifolds and flows generated by them, and diffeomorphisms. Structurally stable systems were introduced by Aleksandr Andronov and Lev Pontryagin in 1937 under the name "systèmes grossiers", or rough systems. They announced a characterization of rough systems in the plane, the Andronov–Pontryagin criterion. In this case, structurally stable systems are ''typical'', they form an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freeskiing
Freeskiing, or new school skiing, is a specific type of alpine skiing, which involves tricks, jumps, and terrain park features, such as rails, boxes, jibs, or other obstacles. This form of skiing resulted from the growth of snowboarding combined with the progression of freestyle skiing. "Newschoolers", or those who specifically ski in this style, as opposed to traditional freestylers, freeriders, big mountain skiers, and racers, are often found in terrain parks, which are designed specifically for tricks. Controversially, freestyle skiing is viewed as its own sport, but some view it as a subset of freeskiing. Some participants view it as a separate sport and do not refer to it as freestyle. The sport does not require participants to compete, but there are competitive events available at every level of the sport. Currently there are two Olympic freeskiing events, half-pipe skiing and slopestyle. These events make up two of the four Olympic freestyle skiing events. The sport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mogul Skiing
Mogul skiing is a freestyle skiing competition consisting of one timed run of free skiing on a steep, heavily moguled course, stressing technical turns, aerial maneuvers and speed. Internationally, the sport is contested at the FIS Freestyle World Ski Championships, and at the Winter Olympic Games. Moguls are a series of bumps on a piste formed when skiers push snow into mounds as they do sharp turns. This tends to happen naturally as skiers use the slope but they can also be constructed artificially. Once formed, a naturally occurring mogul tends to grow as skiers follow similar paths around it, further deepening the surrounding grooves known as troughs. Since skiing tends to be a series of linked turns, moguls form together to create a bump field. The term "mogul" is from the Bavarian/Austrian German word ''Mugel'', meaning "mound, hillock". Competition The first competition involving mogul skiing occurred in 1971. The FIS created the Freestyle World Cup Circuit in 1980. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerial Skiing
Aerial skiing or aerials is a freestyle skiing discipline where athletes ski down a slope to launch themselves off a kicker (a vertically inclined ramp) and perform multiple twists and flips before landing on an inclined landing hill. Aerialists are scored on their jumps based on air, form and landing with their score multiplied by the degree of difficulty of the jump they performed. Internationally, the sport is contested at the FIS Freestyle Ski World Cup, FIS Freestyle World Ski Championships, and the Winter Olympic Games. Overview Skiers begin at the top of a large hill and ski down a slope (known as an inrun) to launch themselves off one of two or three vertically inclined kickers. They may select which kicker to use for their specific jump as kickers vary in inclination and height. After launching themselves off the kicker, skiers then complete several twists and flips before attempting to land upwards on a declining hill of prepared snow. Jumps are scored by a panel of ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utah Olympic Park
The Utah Olympic Park is a winter sports park built for the 2002 Winter Olympics, and is located in Summit County ( east of Salt Lake City) northwest of Park City, Utah, United States. During the 2002 games the park hosted the bobsleigh, skeleton, luge, ski jumping, and Nordic combined events. It still serves a training center for Olympic and development level athletes. History Like the Utah Olympic Oval and Soldier Hollow, the park was designed and built specifically for the Olympic games under the supervision of the Salt Lake Organizing Committee (SLOC). The 1989 Olympic referendum, passed by Utahns, allowed for taxpayer money to fund a winter sports park, which would be used if Salt Lake City won its bid for either the 1998 or 2002 Winter Olympics; Olympic funds and revenue would then be used to repay the state. In 1990 the Utah Sports Authority announced their plans to build the park, which included ski jumps and a bobsled-luge track, in Bear Hollow near Park City. Before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Placid, New York
Lake Placid is a village in the Adirondack Mountains in Essex County, New York, United States. As of the 2020 census, the population was 2,303. The village of Lake Placid is near the center of the town of North Elba, southwest of Plattsburgh. Lake Placid, along with nearby Saranac Lake and Tupper Lake, comprise what is known as the Tri-Lakes region. Lake Placid hosted the 1932 and the 1980 Winter Olympics. Lake Placid also hosted the 1972 Winter Universiade, the 2000 Goodwill Games, and will host the 2023 Winter Universiade. History Lake Placid was founded in the early 19th century to develop an iron ore mining operation. By 1840, the population of "North Elba" (four miles southeast of the present village, near where the road to the Adirondak Loj crosses the Ausable River), was six families. In 1845, the philanthropist Gerrit Smith arrived in North Elba and not only bought a great deal of land around the village but granted large tracts to former slaves. He reformed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerial Skiing
Aerial skiing or aerials is a freestyle skiing discipline where athletes ski down a slope to launch themselves off a kicker (a vertically inclined ramp) and perform multiple twists and flips before landing on an inclined landing hill. Aerialists are scored on their jumps based on air, form and landing with their score multiplied by the degree of difficulty of the jump they performed. Internationally, the sport is contested at the FIS Freestyle Ski World Cup, FIS Freestyle World Ski Championships, and the Winter Olympic Games. Overview Skiers begin at the top of a large hill and ski down a slope (known as an inrun) to launch themselves off one of two or three vertically inclined kickers. They may select which kicker to use for their specific jump as kickers vary in inclination and height. After launching themselves off the kicker, skiers then complete several twists and flips before attempting to land upwards on a declining hill of prepared snow. Jumps are scored by a panel of ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ski Resort
A ski resort is a resort developed for skiing, snowboarding, and other winter sports. In Europe, most ski resorts are towns or villages in or adjacent to a ski area – a mountainous area with pistes (ski trails) and a ski lift system. In North America, it is more common for ski areas to exist well away from towns, so ski resorts usually are destination resorts, often purpose-built and self-contained, where skiing is the main activity. Ski resort Ski resorts are located on both Northern and Southern Hemispheres on all continents except Antarctica. They typically are located on mountains, as they require a large slope. They also need to receive sufficient snow (at least in combination with artificial snowmaking, unless the resort uses dry ski slopes). High concentrations of ski resorts are located in the Alps, Scandinavia, western and eastern North America, and Japan. There are also ski resorts in the Andes, scattered across central Asia, and in Australia and New Zealand. Ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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