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Half-pipe
A half-pipe is a structure used in gravity extreme sports such as skateboarding, snowboarding, skiing, freestyle BMX, skating, and scooter riding. Overview The structure resembles a cross-section of a swimming pool, essentially two concave ramps (or quarter-pipes), topped by copings and decks, facing each other across a flat transition, also known as a ''tranny''. Originally half-pipes were half sections of a large diameter pipe. Since the 1980s, half-pipes contain an extended ''flat bottom'' between the quarter-pipes. The original style half-pipes are no longer built. Flat ground provides time to regain balance after landing and more time to prepare for the next trick. Half-pipe applications include leisure recreation, skills development, competitive training, amateur and professional competition, demonstrations, and as an adjunct to other types of skills training. A skilled athlete can perform in a half-pipe for an extended period of time by pumping to attain extreme speeds wi ... [...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 exhibited since 1906. Aerial skiing was popularized by John Rudd at the 1908 U.S. National Ski Jumping Championships, National Championship Ski Jumping Tournament in Duluth, Minnesota, in the 1930s by Olle Rimfors, and again 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 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowboarding
Snowboarding is a recreational and competitive activity that involves descending a snow-covered surface while standing on a snowboard that is almost always attached to a rider's feet. It features in the Winter Olympic Games and Winter Paralympic Games. Snowboarding was developed in the United States, inspired by skateboarding, sledding, surfing, and skiing. It became popular around the world and was introduced as a Winter Olympic Sport at Nagano in 1998 and featured in the Winter Paralympics at Sochi in 2014. , its popularity (as measured by equipment sales) in the United States peaked in 2007 and has been in a decline since. History The first snowboards were developed in 1965 when Sherm Poppen, an engineer in Muskegon, Michigan, invented a toy for his daughters by fastening two skis together and attaching a rope to one end so he would have some control as they stood on the board and glided downhill. Dubbed the "snurfer" (combining snow and surfer) by his wife Nancy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skiing
Skiing is the use of skis to glide on snow for basic transport, a recreational activity, or a competitive winter sport. Many types of competitive skiing events are recognized by the International Olympic Committee (IOC), and the International Ski and Snowboard Federation (FIS). History Skiing has a history of almost five millennia. Although modern skiing has evolved from beginnings in Scandinavia, it may have been practiced more than 100 centuries ago in the Altai Mountains, according to an interpretation of ancient paintings. However, this continues to be debated. The word "ski" comes from the Old Norse word "skíð" which means to "split piece of wood or firewood". Asymmetrical skis were used in northern Finland and Sweden until at least the late 19th century. On one foot, the skier wore a long straight non-arching ski for sliding, and a shorter ski was worn on the other foot for kicking. The underside of the short ski was either plain or covered with animal skin to aid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vert Skating
Vert skating or vertical skating is a discipline using skates like inline skates or roller skates on a vert ramp, a style of half-pipe. In vert skating, the skater is able to achieve more air-time as compared to other styles of skating, meaning skaters can perform complicated aerial maneuvers and acrobatic tricks, such as spins and flips. The intent of vert skating is to ride higher than the coping (the metal pipe on top of the ramp) and perform spins or flips. It focuses on complicated aerial maneuvers, such as spins and flips. The intent of the skater is to build speed until they are of sufficient height above the edge of the ramp to perform various aerial acrobatics. In competitions skaters have limited time, often less than a minute, to impress the judges by landing numerous and difficult tricks, having a good flow and consistency, having creativity with the routine and most importantly having a good style. The first X Games, in 1995, featured four inline skating events: be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masonite
Masonite board Back side of a masonite board Isorel, Quartrboard, Masonite Corporation, Masonite, also called Quartboard or pressboard, is a type of engineered wood made of steam-cooked and pressure-molded wood or paper fibers. The fibers form a stiff, dense material in a range of weights. The process was formulated and patented by American inventor William H. Mason. Masonite has been widely used in traditional school and office products such as spiral-bound notebooks and three-ring binders, but its unique physical characteristics lend themselves readily to a variety of end-uses, including (but not limited to) document storage, filing supplies (classification and file folders), report covers, folding cartons, tags, labels, and industrial applications. History In 1898, a product resembling Masonite ( hardboard) was first made in England by hot-pressing waste paper.Akers, 1966, p. x In 1924, Masonite was patented in Laurel, Mississippi, by William H. Mason, who was a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riverside Skatepark Vert Ramp 2019 05 05
Riverside may refer to: Places Australia * Riverside, Tasmania, a suburb of Launceston, Tasmania Canada * Riverside (electoral district), in the Yukon * Riverside, Calgary, a neighbourhood in Alberta * Riverside, Manitoba, a former rural municipality * Riverside, Middlesex County, Ontario, a community in the municipality of Southwest Middlesex * Rural Municipality of Riverside No. 168, Saskatchewan * Riverside, Ontario, a neighbourhood of Windsor * Riverside, Simcoe County, Ontario, a community in the township of Tay * Riverside, Toronto, a neighbourhood in Riverdale, Toronto, Ontario * Riverside Ward, former name of River Ward in Ottawa, Ontario New Zealand * Riverside, New Zealand, a locality in Ashburton District, near Wheatstone, New Zealand * Riverside, Whangārei, a suburb of Whangārei South Africa * Riverside, Mbombela, a suburb of Mbombela, Mpumalanga United Kingdom * Riverside, Cardiff, an inner-city area and community in South Wales * Riverside (Cardiff elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half Pipe P1570
One half is the multiplicative inverse of 2. It is an irreducible fraction with a numerator of 1 and a denominator of 2. It often appears in mathematical equations, recipes and measurements. As a word One half is one of the few fractions which are commonly expressed in natural languages by suppletion rather than regular derivation. In English language, English, for example, compare the compound word, compound "one half" with other regular formations like "one-sixth". A ''half'' can also be said to be one part of something divided into two equal parts. It is acceptable to write one half as a Hyphen, hyphenated word, ''one-half''. Mathematics One half is the rational number that lies midway between 0 and 1 on the number line. Multiplication by one half is equivalent to division by two, or "halving"; conversely, division by one half is equivalent to multiplication by two, or "doubling". A number raised to the Exponentiation, power of one half is equal to its square root ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grain Auger
A screw conveyor or auger conveyor is a mechanism that uses a rotating helical screw blade, called a "''flighting''", usually within a tube, to move liquid or granular materials. They are used in many bulk handling industries. Screw conveyors in modern industry are often used horizontally or at a slight incline as an efficient way to move semi-solid materials, including food waste, wood chips, aggregates, cereal grains, animal feed, boiler ash, meat, bone meal, municipal solid waste, and many others. The first type of screw conveyor was the Archimedes' screw, used since ancient times to pump irrigation water. They usually consist of a trough or tube containing either a spiral blade coiled around a shaft, driven at one end and held at the other, or a "''shaftless spiral''", driven at one end and free at the other. The rate of volume transfer is proportional to the rotation rate of the shaft. In industrial control applications, the device is often used as a variable rate fee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2002 Winter Olympics
The 2002 Winter Olympics, officially the XIX Olympic Winter Games and commonly known as Salt Lake 2002 (; Gosiute dialect, Gosiute Shoshoni: ''Tit'-so-pi 2002''; ; Shoshoni language, Shoshoni: ''Soónkahni 2002''), were an international winter multi-sport event that was held from February 8 to 24, 2002, in and around Salt Lake City, Utah, United States. Salt Lake City was selected as the host city in June 1995 at the 104th IOC Session. They were the eighth Olympics to be hosted by the United States, and the most recent to be held in the country until 2028, when Los Angeles will host the 2028 Summer Olympics, 34th Summer Olympics. The 2002 Winter Olympics and 2002 Paralympic Winter Games, Paralympics were both organized by the Salt Lake Organizing Committee for the Olympic and Paralympic Winter Games of 2002, Salt Lake Organizing Committee (SLOC), the first time that both events were organized by a single committee, and inspiring other Olympic and Paralympic Games to be orga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
