Inline Skates
Inline skates are a type of roller skate used for inline skating. Unlike quad skates, which have two front and two rear wheels, inline skates typically have two to five wheels arranged in a single line. Some, especially those for recreation, have a rubber "stop" or "brake" block attached to the rear of one or occasionally both of the skates so that the skater can slow down or stop by leaning back on the foot with the brake skate. During the late 1980s and early 1990s, Rollerblade, Inc., a company founded by Scott and Brennan Olson in Minneapolis, Minnesota, widely promoted inline skating through the registered trademark ''Rollerblade''. This term has since become a generic trademark for inline skates. History John Joseph Merlin experimented with single- to many-rowed devices worn on feet in 1760. Inline skates, skates designed to work like ice skates during periods of warm weather, was patented by Robert John Tyers of London in 1823, his Rolito design featured brass wheels. Lo ...
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Typical Inline Skating Gear
Typical may refer to: * ''Typical'' (album), Peter Hammill * "Typical" (song), song by MuteMath *"Typical", song by Frazier Chorus from ''Sue'', 1987 *''Typical'', story collection by Padgett Powell, 1991 See also *''Typical Rick ''Typical Rick'' is an American television series produced by Comedy Central, created by Nicholaus Goossen and Nick Swardson. Comedy Central declined to renew the series for a third season. Cast * Nick Swardson as Gary * Simon Rex as Rick * Mega ...

Expedition 360
Expedition 360 is the name of a successful attempt by Briton Jason Lewis to be the first person to circumnavigate the globe using only human power – no motors or sails. It was begun by Lewis and Stevie Smith in 1994 and ended at 12:24 pm on 6 October 2007, when Lewis re-crossed the prime meridian at Greenwich, London, having travelled . Underlying definition ''A true circumnavigation of the world must pass through two points antipodean to each other.'' Norris McWhirter, founding editor of Guinness, 1971. '' true circumnavigation of the Earth must: start and finish at the same point, traveling in one general direction, reach two antipodes, cross the equator, cross all longitudes, cover a minimum of 40,000km.'' AdventureStats by Explorersweb History In 2006, the ''Adventure'' publication of the National Geographic Society honored Canadians Colin Angus and Julie Wafaei as Adventurers of the Year for their "journey around the world" by human power. The Society also stated that i ...
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Inline Skate Bearings
Inline is commonly used to mean "in a line", "aligned" or "placed within a line or sequence". Topics that feature "inline" in their names include: * Inline citation (here meaning "within a line of text") * Inline engine * Inline hockey * Inline skating Computing * Inline assembler * Inline expansion * Inline function in C and C++ * Inline reply * Inline tag (HTML) See also * ''In Line ''In Line'' is the debut album by Bill Frisell, released on ECM in 1983. It contains four solo performances by Frisell and five duets with bassist Arild Andersen. Reception ''The Rolling Stone Album Guide'' called the album "a lusciously reflecti ...

Aluminum
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 towards ox ...
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Extrusion
Extrusion is a process used to create objects of a fixed cross-sectional profile by pushing material through a die of the desired cross-section. Its two main advantages over other manufacturing processes are its ability to create very complex cross-sections; and to work materials that are brittle, because the material encounters only compressive and shear stresses. It also creates excellent surface finish and gives considerable freedom of form in the design process. Drawing is a similar process, using the tensile strength of the material to pull it through the die. It limits the amount of change that can be performed in one step, so it is limited to simpler shapes, and multiple stages are usually needed. Drawing is the main way to produce wire. Metal bars and tubes are also often drawn. Extrusion may be continuous (theoretically producing indefinitely long material) or semi-continuous (producing many pieces). It can be done with hot or cold material. Commonly extruded materials ...
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Polyurethane
Polyurethane (; often abbreviated PUR and PU) refers to a class of polymers composed of organic chemistry, organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane is produced from a wide range of starting materials. This chemical variety produces polyurethanes with different chemical structures leading to many List of polyurethane applications, different applications. These include rigid and flexible foams, varnishes and coatings, adhesives, Potting (electronics), electrical potting compounds, and fibers such as spandex and Polyurethane laminate, PUL. Foams are the largest application accounting for 67% of all polyurethane produced in 2016. A polyurethane is typically produced by reacting an isocyanate with a polyol. Since a polyurethane contains two types of monomers, which polymerize one after the other, they are classed as Copolymer#Alternating copolymers, alternating copolymers. Both the isocy ...
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Inline Skate Wheels
Inline is commonly used to mean "in a line", "aligned" or "placed within a line or sequence". Topics that feature "inline" in their names include: * Inline citation (here meaning "within a line of text") * Inline engine * Inline hockey * Inline skating Computing * Inline assembler * Inline expansion * Inline function in C and C++ * Inline reply * Inline tag (HTML) See also * ''In Line ''In Line'' is the debut album by Bill Frisell, released on ECM in 1983. It contains four solo performances by Frisell and five duets with bassist Arild Andersen. Reception ''The Rolling Stone Album Guide'' called the album "a lusciously reflecti ...

Carbon Fiber
Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon composite, or just carbon, are extremely strong and light fiber-reinforced plastics that contain carbon fibers. CFRPs can be expensive to produce, but are commonly used wherever high strength-to-weight ratio and stiffness (rigidity) are required, such as aerospace, superstructures of ships, automotive, civil engineering, sports equipment, and an increasing number of consumer and technical applications. The binding polymer is often a thermoset resin such as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester, or nylon, are sometimes used. The properties of the final CFRP product can be affected by the type of additives introduced to the binding matrix (resin). The most common additive is silica, but other addi ...
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Artistic Roller Skating
Artistic roller skating is a sport similar to figure skating but where competitors wear roller skates instead of ice skates. Within artistic roller skating, there are several disciplines: * Figures: the individual follows the figure circle line on a specific edge. Figures become progressively more complex with the addition of turns and the use of the third circle (similar to compulsory or "school" figures on ice). * Freestyle: the individual performs a solo routine with jumps and spins to their chosen piece of music. * Duo Free (also called Pairs): two individuals perform jumps, spins, and lifts to their chosen piece of music. * * Couples Compulsory Dance: two people perform a dance consisting of a set sequence of steps in a pattern around the rink to a piece of music to a given tempo. There are no jumps or spins. * Solo Compulsory Dance: an individual performs a dance consisting of a set series of steps in a pattern around the rink to a piece of music to a given tempo. There a ...
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Inline Hockey
Roller inline hockey, or inline hockey is a variant of hockey played on a hard, smooth surface, with players using inline skates to move and ice hockey sticks to shoot a hard, plastic puck into their opponent's goal to score points. The sport is a very fast-paced and free-flowing game and is considered a contact sport, but body checking is prohibited. There are five players including the goalkeeper from each team on the rink at a time, while teams normally consist of 16 players. There are professional leagues, one of which is the National Roller Hockey League (NRHL). While it is not a contact sport, there are exceptions, i.e. the NRHL involves fighting. Unlike ice hockey, there are no blue lines or defensive zones in roller hockey. This means that, according to most rule codes, there are no offsides or icings that can occur during game play. This along with fewer players on the rink allows for faster gameplay. There are traditionally two 20-minute periods or four 10-minute ...
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Inline Speed Skating
Inline speed skating is the roller sport of racing on inline skates. The sport may also be called ''inline racing'' by participants. Although it primarily evolved from racing on traditional roller skates, the sport is similar enough to ice speed skating that many competitors are known to switch between inline and ice speed skating according to the season. Due to the 2022 Russian invasion of Ukraine, World Skate banned Russian and Belarusian athletes and officials from its competitions, and will not stage any events in Russia or Belarus in 2022. Ÿ–‰ Skate An inline speed skate is a specialized shoe version of the inline skate. The boot or shoe is close-fitting, without much padding and usually made of leather, carbon fiber, and/or fiberglass composite material, composites. For best performance, the boot must conform closely to the shape of the foot, so most inline speed skating boots are custom-fitted or else heat-moldable. Speed skating boots are low-cut and offer little ankl ...
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Aggressive Inline Skating
Aggressive inline skating (referred to by participants as rollerblading, blading, skating, street skating, rolling, roller freestyle or freestyle rolling) is a sub-discipline of inline skating in the action sports canon. Aggressive inline skates are specially modified to accommodate grinds and jumps. Aggressive skating can take place on found street obstacles or at skate parks. History In 1980, a group of ice hockey players in Minnesota were looking for a way to practice during the summer.McKenna p. 11 Scott and Brennan Olson formed the company Rollerblade, Inc., to sell skates with four polyurethane wheels arranged in a straight line on the bottom of a padded boot. In 1988, Rollerblade introduced the first aggressive inline skate, the Rollerblade Lightning TRS. Aggressive inline skating developed as an organized sport in the early 1990s.McKenna p. 15 In 1994 the National Inline Skate Series, better known as NISS was launched as the first aggressive skating competition series. Pro ...
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