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Tartan Track
Tartan Track is a trademarked all-weather synthetic track surfacing made of polyurethane used for track and field competitions, manufactured by 3M. It lets athletes compete in bad weather without serious performance loss and improves their results over other surfaces. It also provides a more consistent surface for competition even under optimum weather. Such tracks have become the standard for most elite competitions. Because the "Tartan" brand name was the first and was widely successful in its time, the name Tartan has been used as a genericized trademark for description of an all-weather running track. History The 1968 Summer Olympics at Mexico City was the first Olympic Games to use the Tartan track surface in athletics. Olympic shot put champion Bill Nieder and American record holder in the mile Don Bowden were instrumental in developing the product and selling it for use in the 1968 Olympics. American track and field coach Bert Bonanno, who had been recruited by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athletics Track
An all-weather running track is a rubberized, artificial running surface for track and field athletics. It provides a consistent surface for competitors to test their athletic ability unencumbered by adverse weather conditions. Historically, various forms of dirt, Rocks, sand, and crushed cinders were used. Many examples of these varieties of track still exist worldwide. Surfaces Starting in the late 1950s, artificial surfaces using a combination of rubber and asphalt began to appear. An artificial warm-up track was constructed for the 1956 Summer Olympics in Melbourne, Australia. During the 1960s many of these tracks were constructed; examples still exist today. In the mid-1960s Tartan tracks were developed, surfaced with a product by 3M. The name ''Tartan'' is a trademark, but it is sometimes used as a genericized trademark. This process was the first to commercialize a polyurethane surface for running tracks, though it was originally conceived for horse racing. Many Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jesse Owens
James Cleveland "Jesse" Owens (September 12, 1913March 31, 1980) was an American track and field athlete who won four gold medals at the 1936 Olympic Games. Owens specialized in the sprints and the long jump and was recognized in his lifetime as "perhaps the greatest and most famous athlete in track and field history". He set three world records and tied another, all in less than an hour, at the 1935 Big Ten track meet in Ann Arbor, Michigan—a feat that has never been equaled and has been called "the greatest 45 minutes ever in sport". He achieved international fame at the 1936 Summer Olympics in Berlin, Germany, by winning four gold medals: 100 meters, long jump, 200 meters, and 4 × 100-meter relay. He was the most successful athlete at the Games and, as a black American man, was credited with "single-handedly crushing Hitler's myth of Aryan supremacy". The Jesse Owens Award is USA Track and Field's highest accolade for the year's best track and field athlete. Owens w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solihull
Solihull (, or ) is a market town and the administrative centre of the wider Metropolitan Borough of Solihull in West Midlands County, England. The town had a population of 126,577 at the 2021 Census. Solihull is situated on the River Blythe in the Forest of Arden area. Solihull's wider borough had a population of 216,240 at the 2021 Census. Solihull itself is mostly urban; however, the larger borough is rural in character, with many outlying villages, and three quarters of the borough is designated as green belt. The town and its borough, which has been part of Warwickshire for most of its history, has roots dating back to the 1st century BC, and was further formally established during the medieval era. Today the town is famed as, amongst other things, the birthplace of the Land Rover car marque, the home of the British equestrian eventing team and is considered to be one of the most prosperous areas in the UK. History Toponymy Solihull's name is commonly thought to have deri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Jump
The long jump is a track and field event in which athletes combine speed, strength and agility in an attempt to leap as far as possible from a takeoff point. Along with the triple jump, the two events that measure jumping for distance as a group are referred to as the "horizontal jumps". This event has a history in the ancient Olympic Games and has been a modern Olympic event for men since the first Olympics in 1896 and for women since 1948. Rules At the elite level, competitors run down a runway (usually coated with the same rubberized surface as running tracks, crumb rubber or vulcanized rubber, known generally as an all-weather track) and jump as far as they can from a wooden or synthetic board, 20 centimetres or 8 inches wide, that is built flush with the runway, into a pit filled with soft damp sand. If the competitor starts the leap with any part of the foot past the foul line, the jump is declared a foul and no distance is recorded. A layer of plasticine is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tire Recycling
Tire recycling, or rubber recycling, is the process of recycling waste tires that are no longer suitable for use on vehicles due to wear or irreparable damage. These tires are a challenging source of waste, due to the large volume produced, the durability of the tires, and the components in the tire that are ecologically problematic. Because tires are highly durable and non-biodegradable, they can consume valuable space in landfills. If waste tires are improperly managed they may cause rubber pollution. In 1990, it was estimated that over 1 billion scrap tires were in stockpiles in the United States. As of 2015, only 67 million tires remain in stockpiles. From 1994 to 2010, the European Union increased the amount of tires recycled from 25% of annual discards to nearly 95%, with roughly half of the end-of-life tires used for energy, mostly in cement manufacturing. Pyrolysis and devulcanization could facilitate recycling. Aside from use as fuel, the main end use for tires rema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver and was formerly named hydrargyrum ( ) from the Greek words, ''hydor'' (water) and ''argyros'' (silver). A heavy, silvery d-block A block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. The term appears to have been first used by Charles Janet. Each block is named after its characteristic orbital: s-blo ... element, mercury is the only metallic element that is known to be liquid at standard temperature and pressure; the only other element that is liquid under these conditions is the halogen bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature. Mercury occurs in deposits throughout the world mostly as cinnabar (mercuric sulfide). The red pigment vermilion is obtained by Mill (grinding), grinding natural cinnabar or synthetic mercuric sulfide. Mercury is used in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artificial Turf
Artificial turf is a surface of synthetic fibers made to look like natural grass. It is most often used in arenas for sports that were originally or are normally played on grass. However, it is now being used on residential lawns and commercial applications as well. The main reason is maintenanceartificial turf stands up to heavy use, such as in sports, and requires no irrigation or trimming. Domed, covered, and partially covered stadiums may require artificial turf because of the difficulty of getting grass enough sunlight to stay healthy. Artificial turf does have its downside, however: limited life, periodic cleaning requirements, petroleum use, toxic chemicals from infill, and heightened health and safety concerns. Artificial turf first gained substantial attention in 1966, when it was installed in the year-old Astrodome. The specific product used was "ChemGrass", developed by Monsanto and rebranded as AstroTurf; this term since then became a generic trademark for any ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation
The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vertical datum). The term ''elevation'' is mainly used when referring to points on the Earth's surface, while ''altitude'' or ''geopotential height'' is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and '' depth'' is used for points below the surface. Elevation is not to be confused with the distance from the center of the Earth. Due to the equatorial bulge, the summits of Mount Everest and Chimborazo have, respectively, the largest elevation and the largest geocentric distance. Aviation In aviation the term elevation or aerodrome elevation is defined by the ICAO as the highest point of the landing area. It is often measured in feet and can be found in approach charts of the aerodrome. It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Lake Tahoe, California
South Lake Tahoe is the most populous city in El Dorado County, California, United States, in the Sierra Nevada. The city's population was 21,330 at the 2020 census, down from 21,403 at the 2010 census. The city, along the southern edge of Lake Tahoe, extends about west-southwest along U.S. Route 50, also known as Lake Tahoe Boulevard. The east end of the city, on the California–Nevada state line right next to the town of Stateline, Nevada, is mainly geared towards tourism, with T-shirt shops, restaurants, hotels, and Heavenly Mountain Resort with the Nevada casinos just across the state line in Stateline. The western end of town is mainly residential, and clusters around "The Y", the X-shaped intersection of US 50, State Route 89, and the continuation of Lake Tahoe Boulevard after it loses its federal highway designation. Geography According to the United States Census Bureau, the city has a total area of , of which is land and , or 38.80%, is water. Its elevation is about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territories of the United States by population, most populous U.S. state and the List of U.S. states and territories by area, 3rd largest by area. It is also the most populated Administrative division, subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous Statistical area (United States), urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento, California, Sacramento is the state's capital, while Los Angeles is the List of largest California cities by population, most populous city in the state and the List of United States cities by population, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echo Summit
Echo Summit is a mountain pass over the Sierra Nevada in the western United States, located in eastern El Dorado County, California. At above sea level, it is the highest point on U.S. Route 50 in California, which traverses it at postmile 66.48 between Twin Bridges and Meyers, south of Lake Tahoe. The "Sierra Nevada Southern Route" (aka the "Pioneer Route") of the Lincoln Highway, the first road across the United States, was routed over nearby Johnson Pass in 1913. The current alignment over Echo Summit was constructed between 1936 and 1939. The "Sierra Nevada Northern Route" of the Lincoln Highway went over Donner Pass. Echo Summit is a trailhead for the Pacific Crest National Scenic Trail.1968 Olympians Return to Echo Summit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
