|
Bowling Pins
Bowling pins (historically also known as skittles or kegels) are upright elongated solids of rotation with a flat base for setting, usually made of wood (esp. maple) standing between 9 and 16 inches (23 and 41cm) tall. Some have interior voids to adjust weight and balance. Pins are coated with plastic and painted, by convention mostly white with (usually) transaxial red stripes or other markings around the neck or middle (candlepins). Sets of pins, usually 5, 9, or 10 in a triangular arrangement, are the target of the bowling ball in various bowling games including tenpins, five-pins, duckpins and candlepins. Tenpins Pin specifications are set by the United States Bowling Congress (USBC). World Bowling, formerly World Tenpin Bowling Association, has adopted the USBC specifications. Pins are tall, wide at their widest point, and weigh ±. The first British made tenpin was by H Massil and sons who received the permit no.1 from the British Tenpin Bowling Association (BTBA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20190107 Bowling Balls And Pins
Nineteen or 19 may refer to: * 19 (number) * One of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (1987 film), a 1987 science fiction film * '' 19-Nineteen'', a 2009 South Korean film * '' Diciannove'', a 2024 Italian drama film informally referred to as "Nineteen" in some sources Science * Potassium, an alkali metal * 19 Fortuna, an asteroid Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album '' 63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle * "Stone in Focus", officially "#19", a composition by Aphex Twin * "Nineteen", a song from the 1992 album ''Refugee'' by Bad4Good * "Nineteen", a song from the 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. 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 Hevea brasiliensis, Pará 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". Manufacturers refine this latex into the rubber that is ready for commercial processing. Natural rubber is used extensively in many applications and products, either alone or in combination with other materials. In most of its useful forms, it has a large stretch ratio and high resilience and also is buoyant and water-proof. Industrial demand for rubber-like materials began to out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowling Pin Shooting
Bowling pin shooting is a shooting sport (primarily for handguns) in which the competitors race against one another to knock standard bowling pins from a table in the shortest elapsed time. Pin shooting is often described as one of the most enjoyable shooting games and one of the easiest means of introducing a new shooter into regular competitive shooting. Pin shooting appeals to both genders. There are many female pin shooters and many distinguished female pin shooters. History Massad Ayoob credits the origin of bowling pin shooting with Richard Davis in the mid-1970s. The sport peaked in popularity between the mid-1980s and the late 1990s. Rules Depending on the caliber of handgun used and the table employed, the pins must be knocked backwards up to to be knocked clear of the table and onto the ground. The pin shooting tables typically consist of one of the following varieties: # 3 pins placed on a waist high table, with 2 additional pins placed on a second tier over the other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juggling Club
Juggling clubs are a object manipulation, prop used by Toss juggling, jugglers. Juggling clubs are often simply called clubs by jugglers and sometimes are referred to as pins or batons by non-jugglers. Clubs are one of the three most popular juggling prop, props used by jugglers; the others being juggling ball, balls and juggling ring, rings. A typical club is in the range of long, weighs between , is slim at the "handle" end, and has its center of mass, center of balance nearer the wider "body" end. The definition of a club is somewhat ambiguous; sticks or rods are allowed under the current Juggling Information Service rules for juggling world records. A juggling club's shape is similar to a bowling pin's and an Indian club's. Modern juggling clubs are, however, distinct from these objects because they differ in the materials they are made of, the way they are constructed, their weight and weight distribution, and are therefore not usually interchangeable. Types Juggling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plastic
Plastics are a wide range of synthetic polymers, synthetic or Semisynthesis, semisynthetic materials composed primarily of Polymer, polymers. Their defining characteristic, Plasticity (physics), plasticity, allows them to be Injection moulding, molded, Extrusion, extruded, or Compression molding, pressed into a diverse range of solid forms. This adaptability, combined with a wide range of other properties such as low weight, durability, flexibility, chemical resistance, low toxicity, and low-cost production, has led to their widespread use around the world. While most plastics are produced from natural gas and petroleum, a growing minority are produced from renewable resources like polylactic acid. Between 1950 and 2017, 9.2 billion metric tons of plastic are estimated to have been made, with more than half of this amount being produced since 2004. In 2023 alone, preliminary figures indicate that over 400 million metric tons of plastic were produced worldwide. If global trends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathe (tool)
A lathe () is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, knurling, drilling, deformation, facing, threading and turning, with tools that are applied to the workpiece to create an object with symmetry about that axis. Lathes are used in woodturning, metalworking, metal spinning, thermal spraying, reclamation, and glass-working. Lathes can be used to shape pottery, the best-known design being the Potter's wheel. Most suitably equipped metalworking lathes can also be used to produce most solids of revolution, plane surfaces and screw threads or helices. Ornamental lathes can produce three-dimensional solids of incredible complexity. The workpiece is usually held in place by either one or two ''centers'', at least one of which can typically be moved horizontally to accommodate varying workpiece lengths. Other work-holding methods include clamping the work about the axis of rotation using a chuck ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maple
''Acer'' is a genus of trees and shrubs commonly known as maples. The genus is placed in the soapberry family Sapindaceae.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008 nd more or less continuously updated since http://www.mobot.org/MOBOT/research/APweb/. There are approximately 132 species, most of which are native to Asia, with a number also appearing in Europe, northern Africa, and North America. Only one species, '' Acer laurinum'', extends to the Southern Hemisphere.Gibbs, D. & Chen, Y. (2009The Red List of Maples Botanic Gardens Conservation International (BGCI) The type species of the genus is the sycamore maple ''Acer pseudoplatanus'', one of the most common maple species in Europe.van Gelderen, C. J. & van Gelderen, D. M. (1999). '' Maples for Gardens: A Color Encyclopedia'' Most maples usually have easily identifiable palmate leaves (with a few exceptions, such as '' Acer carpinifolium'', '' Acer laurinum'', and '' Acer negundo'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Five-pin Bowling
Five-pin bowling is a bowling variant which is played in Canada, where many bowling alleys offer it, either alone or in combination with ten-pin bowling. It was devised around 1909 by Thomas F. Ryan in Toronto, Ontario, at his Toronto Bowling Club, in response to customers who complained that the ten-pin game was too strenuous. He cut five tenpins down to about 75% of their size, and used hand-sized hard rubber balls, thus inventing the original version of five-pin bowling. Gameplay The balls in five pin bowling are small enough to fit in the hand and therefore typically have no fingerholes, although the Canadian 5 Pin Bowlers Association (C5PBA) has approved balls with thumb holes. At the end of the lane there are five pins arranged in a V. They are midway in size between duckpins and ten pins, and they have a heavy rubber band around their middles to make them move farther when struck. Unlike any other form of bowling popular in North America, the pins in five-pin bowling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nine-pin Bowling
Nine-pin bowling (also known as ninepin bowling, nine-pin, kegel, or kegeln) is a bowling game played primarily in Europe. European championships are held each year. In Europe overall, there are some 130,000 players. Nine-pin bowling lanes are mostly found in Austria, Czech Republic, Slovakia, Belgium, Germany, Luxembourg, the Netherlands, Estonia, Switzerland, Serbia, Slovenia, Croatia, Poland, North Macedonia, Hungary, France, Brazil and Liechtenstein. In English-speaking countries, where Tenpin bowling (which originated in the United States) is dominant, facilities for nine-pin bowling are uncommon, though it remains popular in areas such as the Barossa Valley in South Australia where many German settlement in Australia, German people settled in the 19th century. A modified version is played in the US state of Texas. European version Equipment This game is played by rolling a ball down an alley towards nine pins. There are three variations of lane shape: *''Classic'' lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Billiard Ball
A billiard ball is a small, hard ball used in cue sports, such as carom billiards, pool, and snooker. The number, type, diameter, color, and pattern of the balls differ depending upon the specific game being played. Various particular ball properties such as hardness, friction coefficient, and resilience are important to accuracy. History Early balls were made of various materials, including wood and clay (the latter remaining in use well into the 20th century). Although affordable ox-bone balls were in common use in Europe, elephant ivory was favored since at least 1627 until the early 20th century; the earliest known written reference to ivory billiard balls is in the 1588 inventory of Thomas Howard, 4th Duke of Norfolk. This is a revised version of ''The Story of Billiards and Snooker'', 1979. Dyed and numbered balls appeared around the early 1770s. By the mid-19th century, elephants were being slaughtered for their ivory at an alarming rate, just to keep up with the dem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinsetter
In bowling, a pinsetter or pinspotter is an automated mechanical device that sets bowling pins back in their original positions, returns bowling balls to the front of the alley, and clears fallen pins on the pin deck. Prior to the machine's invention, pinsetters were boys or young men (''pin boys'') hired at bowling alleys to manually reset pins and returned balls to the player. The first mechanical pinsetter was invented by Gottfried (Fred) Schmidt, who sold the patent in 1941 to AMF. Pinsetting machines have largely done away with pinsetting as a manual profession, although a small number of bowling alleys still use human pinsetters. While humans usually no longer set the pins, a pinchaser (or "pin monkey") is often stationed near the equipment to ensure it is clean and working properly, and to clear minor jams. Beginning in the 1970s, modern pinsetters were integrated with electronic scoring systems of varying sophistication. Many pinsetters have a manual reset button in c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
