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Disc Golf
Disc golf, also known as frisbee golf, is a flying disc sport in which players throw a disc at a target; it is played using rules similar to golf. Most disc golf discs are made out of polypropylene plastic, otherwise known as polypropene, which is a thermoplastic polymer resin used in a wide variety of applications. Discs are also made using a variety of other plastic types that are heated and molded into individual discs. The sport is usually played on a course with 9 or 18 holes (baskets). Players complete a hole by throwing a disc from a tee pad or area toward a target, known as a basket, throwing again from where the previous throw landed, until the basket is reached. The baskets are formed by wire with hanging chains above the basket, designed to catch the incoming discs, which then fall into the basket, for a score. Usually, the number of throws a player uses to reach each basket is tallied (often in relation to par), and players seek to complete each hole in the lowest num ...
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Professional Disc Golf Association
The Professional Disc Golf Association (PDGA) is a 501(c)(4) nonprofit membership organization dedicated to the promotion and sustainable growth of disc golf. The PDGA is the global governing body of disc golf. The organization promotes the sport through tournament development, course development, rules and competitive standards, media and sponsor relations, and public education and outreach. As of September 1, 2022, the current PDGA Board of Directors consists of PDGA President Nate Heinold, Vice President Wilbur Wallis, Treasurer David Schreff, and Secretary Geoff Hungerford, as well as Laura Nagtegaal, Leah Tsinajinnie, and Conrad Damon. Organizational structure The PDGA is a membership organization with Professional-class and Amateur-class members who pay yearly dues to belong to the organization. Board of Directors Strategic planning and oversight is handled by the Board of Directors, usually comprising seven Board members elected by the active PDGA membership ...
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List Of Disc Golf Courses In The United States
Disc golf is a popular sport in the United States played at the recreational, club, and international competition levels. Popularity In 2018, the PDGA counted 36,993 active members, 6,316 courses, and 3,068 disc golf tournaments in the United States. In 2021, PDGA counted over 50,000 active members and 9,454 courses. Courses The world's first permanent disc golf course went into the ground in 1975 at Oak Grove Park in Los Angeles County, California. Approximately 75% of the world's disc golf courses are located in the United States. Some of the most notable ones include DeLaveaga, Maple Hill, Blue Ribbon Pines, Brewster Ridge, Diamond X, and Milo McIver. Iowa, Kansas, and the Dakotas have the most courses per capita, whereas Massachusetts, Ohio, Connecticut, Wisconsin, and Delaware have the most courses per square mile of dry land. Texas, Wisconsin, and Minnesota have the most courses overall. , there are known disc golf courses in the United States on the official PD ...
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Disc Golf In Basket
Disk or disc may refer to: * Disk (mathematics), a geometric shape * Disk storage Music * Disc (band), an American experimental music band * ''Disk'' (album), a 1995 EP by Moby Other uses * Disk (functional analysis), a subset of a vector space * Disc (galaxy), a disc-shaped group of stars * ''Disc'' (magazine), a British music magazine * Disc harrow, a farm implement * DISC assessment, a group of psychometric tests * Death-inducing signaling complex * Defence Intelligence and Security Centre or Joint Intelligence Training Group, the headquarters of the Defence College of Intelligence and the British Army Intelligence Corps * Delaware Independent School Conference, a high-school sports conference * , a Turkish trade union centre * Domestic international sales corporation, a provision in U.S. tax law * Dundee International Sports Centre, a sports centre in Scotland * International Symposium on Distributed Computing, an academic conference * Intervertebral disc, a cartilage betwee ...
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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 ...
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Gravel
Gravel is a loose aggregation of rock fragments. Gravel occurs naturally throughout the world as a result of sedimentary and erosive geologic processes; it is also produced in large quantities commercially as crushed stone. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel () and pebble gravel (). ISO 14688 grades gravels as fine, medium, and coarse, with ranges 2–6.3 mm to 20–63 mm. One cubic metre of gravel typically weighs about 1,800 kg (or a cubic yard weighs about 3,000 lb). Gravel is an important commercial product, with a number of applications. Almost half of all gravel production is used as aggregate for concrete. Much of the rest is used for road construction, either in the road base or as the road surface (with or without asphalt or other binders.) Naturally occurring porous gravel deposits have a ...
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Rubber
Rubber, also called India rubber, latex, Amazonian rubber, ''caucho'', or ''caoutchouc'', as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Thailand, Malaysia, and Indonesia are three of the leading rubber producers. Types of polyisoprene that are used as natural rubbers are classified as elastomers. Currently, rubber is harvested mainly in the form of the latex from the rubber tree (''Hevea brasiliensis'') or others. The latex is a sticky, milky and white colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". The latex then is refined into the rubber that is ready for commercial processing. In major areas, latex is allowed to coagulate in the collection cup. The coagulated lumps are collected and processed into dry forms for sale. Natural rubber is used extensively in many applications and products, either alone or in combination wit ...
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Asphalt
Asphalt, also known as bitumen (, ), is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used. Full text at Internet Archive (archive.org) The word is derived from the Ancient Greek ἄσφαλτος ''ásphaltos''. The largest natural deposit of asphalt in the world, estimated to contain 10 million tons, is the Pitch Lake located in La Brea in southwest Trinidad (Antilles island located on the northeastern coast of Venezuela), within the Siparia Regional Corporation. The primary use (70%) of asphalt is in Road surface, road construction, where it is used as the glue or binder mixed with construction aggregate, aggregate particles to create asphalt concrete. Its other main uses are for bituminous waterproofing products, including production of roofing felt and for sealing flat roofs. In material sciences an ...
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Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ...
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List Of Disc Golf Courses In Austria
, there are 19 known disc golf courses in Austria on the official PDGA Course Directory. 10 of them (%) are full-size courses with 18 holes or more, and 8 of them (%) are smaller courses that feature at least 9 holes. Austria has courses per million inhabitants. See also List of disc golf courses in Norway Notes References External links Disc Golf Austria Course Directory {{Disc golf, state=expanded Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ... Disc golf courses Disc golf courses ...
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List Of Disc Golf Courses In Norway
, there are 89 known disc golf courses in Norway on the official PDGA Course Directory. 47 of them (%) are full-size courses with 18 holes or more, and 36 of them (%) are smaller courses that feature at least 9 holes. Norway has courses per million inhabitants. See also List of disc golf courses in Austria Notes References {{Disc golf, state=expanded Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ... Disc golf courses Disc golf courses ...
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List Of Countries And Dependencies By Area
This is a list of the world's countries and their dependent territories by land, water and total area, ranked by total area. Entries in this list include, but are not limited to, those in the ISO 3166-1 standard, which includes sovereign states and dependent territories. All 193 member states of the United Nations plus the two observer states are given a rank number. Largely unrecognised states not in ISO 3166-1 are included in the list in ranked order. The areas of such largely unrecognised states are in most cases also included in the areas of the more widely recognised states that claim the same territory; see the notes in the "notes" column for each country for clarification. Not included in the list are individual country claims to parts of the continent of Antarctica or entities such as the European Union that have some degree of sovereignty but do not consider themselves to be sovereign countries or dependent territories. This list includes three measurements o ...
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Ã…land
Ã…land ( fi, Ahvenanmaa: ; ; ) is an Federacy, autonomous and Demilitarized zone, demilitarised region of Finland since 1920 by a decision of the League of Nations. It is the smallest region of Finland by area and population, with a size of 1,580 km2, and a population of 30,129, constituting 0.51% of its land area and 0.54% of its population. Its only official language is Swedish language, Swedish and the capital city is Mariehamn. Ã…land is situated in an archipelago, called the Ã…land Islands, at the entrance to the Gulf of Bothnia in the Baltic Sea belonging to Finland. It comprises Fasta Ã…land on which 90% of the population resides and about 6,500 Skerry, skerries and islands to its east. Of Ã…land's thousands of islands, about 60–80 are inhabited. Fasta Ã…land is separated from the coast of Roslagen in Sweden by of open water to the west. In the east, the Ã…land archipelago is Geographic contiguity, contiguous with the Archipelago Sea, Finnish archipelago. Ã…land ...
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