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Bowling Pins
Bowling pins (historically also known as skittles or kegels) 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) Duckpins and fivepins Duckpins are shorter and squatter than standard tenpins. Canadian fivepins are between duckpins and tenpins in size, but have a thick, inch-wide rubber band around the widest part of the pin to increase pin action when struck. Candlepins Candlepins are dissimilar to the others, being the tallest of all at 15-3/4 inches (40 cm), but only 2-15/16 inches wide and in weight, each pin nearly matching the maximum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20190107 Bowling Balls And Pins
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film 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. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen ''Almost Heathen'' is the third studio album by the stoner rock band Karma to Burn, released in 2001 via Spitfire Records. It was the last album released before their seven-year disban ... [...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 the Duke of Norfolk. 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 demand for high-end billiard balls – no more than eight balls could be made from a single ... [...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. Pinshooting appeals to both genders. There are many female pinshooters and many distinguished female pinshooters. 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 others a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juggling Club
Juggling clubs are a prop used by 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 props used by jugglers; the others being balls and rings. A typical club is in the range of long, weighs between , is slim at the "handle" end, and has its 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 clubs are manufactured from different materials and construction methods and can therefore ... [...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] |
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, 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, parts 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 chu ... [...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 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'', the most common maple species in Europe.van Gelderen, C. J. & van Gelderen, D. M. (1999). ''Maples for Gardens: A Color Encyclopedia'' Maples usually have easily recognizable palmate leaves (''Acer negundo'' is an exception) and distinctive winged fruits. The closest relatives of the maples are the horse chest ... [...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 i ... [...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) have approved balls with thumb holes made by one manufacturer (the E. Parrella Co., known as EPCO). 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 ... [...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, Brazil and Liechtenstein. In English-speaking countries, where ten-pin bowling (which originated in the United States) is dominant, facilities for nine-pin bowling are uncommon, though it remains popular in areas the state of South Australia such as the Barossa Valley in which many 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'' lanes are long and wide f ... [...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. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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