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Skyhook (boarding)
In skateboarding and related sports, skyhooks are devices which serve as semi-open bindings. They are usually made of aluminium, steel Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistant ty ... or hard plastic and are formed to cover the rider's boot, yet to allow him to easily free his feet from the hook. They may be screwed to the top of the board to facilitate jumping and enhance stability during a ride. They are mostly used on freeboards and longboards without a kicktail. Skateboarding equipment {{Skateboarding-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skateboarding
Skateboarding is an extreme sport, action sport originating in the United States that involves riding and performing tricks using a skateboard, as well as a recreational activity, an art form, an entertainment industry Profession, job, and a method of transportation. Skateboarding has been shaped and influenced by many skateboarders throughout the years. A 2009 report found that the skateboarding market is worth an estimated $4.8 billion in annual revenue, with 11.08 million active skateboarders in the world. In 2016, it was announced that skateboarding would be represented at the 2020 Summer Olympics in Tokyo, for both male and female teams. Since the 1970s, skateparks have been constructed specifically for use by skateboarders, freestyle BMXers, aggressive inline skating, aggressive skaters, and more recently, Freestyle scootering, scooters. However, skateboarding has become controversial in areas in which the activity, although illegal, has damaged curbs, stoneworks, steps, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium
Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has a great affinity towards oxygen, and forms a protective layer of oxide on the surface when exposed to air. Aluminium visually resembles silver, both in its color and in its great ability to reflect light. It is soft, non-magnetic and ductile. It has one stable isotope, 27Al; this isotope is very common, making aluminium the twelfth most common element in the Universe. The radioactivity of 26Al is used in radiodating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ is small and highly charged; as such, it is polarizing, and bonds aluminium forms tend towards covalency. The strong affinity tow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel
Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistant typically need an additional 11% chromium. Because of its high tensile strength and low cost, steel is used in buildings, infrastructure, tools, ships, trains, cars, machines, electrical appliances, weapons, and rockets. Iron is the base metal of steel. Depending on the temperature, it can take two crystalline forms (allotropic forms): body-centred cubic and face-centred cubic. The interaction of the allotropes of iron with the alloying elements, primarily carbon, gives steel and cast iron their range of unique properties. In pure iron, the crystal structure has relatively little resistance to the iron atoms slipping past one another, and so pure iron is quite ductile, or soft and easily formed. In steel, small amounts of carbon, other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plastic
Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide range of other properties, such as being lightweight, durable, flexible, and inexpensive to produce, has led to its widespread use. Plastics typically are made through human industrial systems. Most modern plastics are derived from fossil fuel-based chemicals like natural gas or petroleum; however, recent industrial methods use variants made from renewable materials, such as corn or cotton derivatives. 9.2 billion tonnes of plastic are estimated to have been made between 1950 and 2017. More than half this plastic has been produced since 2004. In 2020, 400 million tonnes of plastic were produced. If global trends on plastic demand continue, it is estimated that by 2050 annual global plastic production will reach over 1, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freeboard (skateboard)
A freeboard is a specialist skateboard designed to closely simulate the behavior of a snowboard. Freeboards were developed to allow snowboarders to transition to skateboarding (as non-winter transport) without the need to adapt to a smaller deck and narrower wheel-base. History Steen Strand conceived the idea for a freeboard as part of his master's thesis in product design at Stanford University, which he expanded into the freeboard style skateboard in 1996. After releasing an ''Alpha'' series featuring kicktails and longer decks (100 – 112 cm) than his more recent versions, Strand began retailing his freeboards under the brand name ''Freebord'' in the late 1990s. By the mid-2000s other freeboard styles and brands had emerged and were developing strong retail track records in mainstream sporting goods stores. Freebord brand After developing the freeboard in 1996, Strand released two models under the ''Freebord'' brand in 1998; the FB-112 and the FB-110. The compan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longboard (skateboard)
A longboard is a type of skateboard typified by longer decks and wheelbases, larger-diameter and softer (lower-durometer) wheels, and often lower riding height compared to street skateboards, though there is wide variation in the geometry and construction of longboards. Among the earliest types of skateboards, longboards were inspired by surfing, with early longboards drawing from the design of surfboards, resembling and mimicking the motion of riding a surfboard, but adapted to riding on streets in a practice known as ''sidewalk surfing''. Available in a wide variety of shapes, longboards are typically designed and optimized for ''cruising'' (covering distances at moderate speeds), commuting (as a practical means of personal transport), and ''downhill (racing)''. The act of riding on a longboard in general is known as longboarding, which can also include more specialized forms such as longboard ''dancing'', which involves stepping up and down a board and other movements and mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kicktail
Kicktails are the upwards bent tips of a skateboard deck, today considered vital to a skateboard. The front kicktail is usually called the ''nose'' while the back kicktail is referred to as the ''tail''. Kicktails are nowadays key to maneuvering the board, especially in street skateboarding. History As the name suggests, kicktails first emerged in the back end of a skateboard only. As street skating progressed, they were made to the front ends of skateboards in an attempt to increase the height of ollies, succeeding beyond all expectations and pushing the sport even further. Kicktails are also found on some longboards. They are now emerging onto the scene with the ever so popular "indo boards", which are balance trainers. They say the kicktail will help with big tricks, pivots, slides, ollies and much more. Introduced by Larry Stevenson Richard Lawrence "Larry" Stevenson (December 22, 1930 – March 25, 2012) was the inventor of the kicktail, the bent-upwards end of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
