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Pit
Pit or PIT may refer to: Structure * Ball pit, a recreation structure * Casino pit, the part of a casino which holds gaming tables * Trapping pit, pits used for hunting * Pit (motor racing), an area of a racetrack where pit stops are conducted * Trading pit, a part of a trading floor where open outcry takes place * Pit cave, a natural cave containing a vertical shaft * Mine (mining) ** Open-pit mine, surface extraction of rock or minerals ** Coal mine or pit Science and technology * Pit, an excavation on metallic surface caused by pitting corrosion * Pit, one of many indentations used to store data on a compact disc * Pit (botany), a part of plant cell walls which allows the exchange of fluids * Pit (nuclear weapon), the core of an implosion weapon * Pit bull, a breed of dog * PIT tag, Passive Integrated Transponder for RFID system * Powered industrial truck, a US legal term * Point in time, time and date something took place * Probability integral transform, a the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit Bull
Pit bull is an umbrella term for several Dog type, types of dog believed to have descended from bull and terriers. In the United States, the term is usually considered to include the American Pit Bull Terrier, American Staffordshire Terrier, American Bully, Staffordshire Bull Terrier, and sometimes the American Bulldog, along with any crossbred dog that shares certain physical characteristics with these breeds. In other countries, including the United Kingdom, the term is used as an abbreviation of the American Pit Bull Terrier breed specifically, while the Staffordshire Bull Terrier is not considered a pit bull. Most pit bull–type dogs descend from the British bull and terrier, a 19th-century dog-fighting type developed from crosses between the Old English Bulldog and the Old English Terrier. Pit bull–type dogs have a controversial reputation as pets internationally, due to their history in dog fighting, the number of high-profile attacks documented in the media over decad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit (Kid Icarus)
''Kid Icarus'' is a series of fantasy video games by Nintendo. Set in the fantasy world of "Angel Land", which is loosely based on Greco-Roman mythology, the gameplay combines action, adventure and platforming elements. The ''Kid Icarus'' franchise is known as a cult classic and a sibling series to the '' Metroid'' franchise. The first installment, '' Kid Icarus'', was released in 1986 for the Nintendo Entertainment System and received critical acclaim despite poor sales. A sequel, '' Kid Icarus: Of Myths and Monsters'', was released for the Game Boy. Following a 20-year hiatus, '' Kid Icarus: Uprising'' was released in 2012 for the Nintendo 3DS. Development After Nintendo's release of commercially successful platforming games in the 1980s, including '' Donkey Kong'', '' Ice Climber'', and '' Super Mario Bros.'', as well as the critically acclaimed adventure game ''The Legend of Zelda'', the company was interested in entering a different genre. They began work on an acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitting Corrosion
Pitting corrosion, or pitting, is a form of extremely localized corrosion that leads to the random creation of small holes in metal. The driving power for pitting corrosion is the depassivation of a small area, which becomes anodic (oxidation reaction) while an unknown but potentially vast area becomes cathodic (reduction reaction), leading to very localized galvanic corrosion. The corrosion penetrates the mass of the metal, with a limited diffusion of ions. Another term arises, pitting factor, which is defined as the ratio of the depth of the deepest pit (resulting due to corrosion) to the average penetration, which can be calculated based on the weight loss. Development and kinetics of pitting According to Frankel (1998) who performed a review on pitting corrosion, it develops in three successive steps: (or nucleation) by breakdown of the passive film protecting the metal surface from oxidation, (2) growth of metastable pits (growing up to the micron scale and then repassivat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit Cave
A pit cave, shaft cave or vertical cave—or often simply called a pit (in the US) and pothole or pot (in the UK); jama in Slavic languages scientific and colloquial vocabulary (borrowed since early research in the Western Balkan Dinaric Alpine karst)—is a type of cave which contains one or more significant vertical shafts rather than being predominantly a conventional horizontal cave passage. Pits typically form in limestone as a result of long-term erosion by water. They can be open to the surface or found deep within horizontal caves. Among US cavers, a pit, usually referred to as a 'pitch' in UK English, is a vertical drop of any depth that cannot be negotiated safely without the use of ropes or ladders. Pit caving Techniques Exploration of pit caves ("vertical caving", also called "potholing" in the UK and "pit caving" in US English) requires the use of equipment such as nylon kernmantle rope or cable ladders. The specialized caving techniques of single rope technique (S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit (game)
''Pit'' is a fast-paced card game for three to eight players, designed to simulate open outcry bidding for commodities. The game first went on sale in 1904 by the American games company Parker Brothers.History of Pit at boardgamegeek.com. Accessed August 2007 The inspirations were the (known as the Pit) and the US Corn Exchange. The game itself was likely based on the very successful game ''Gavitt's Stock Exchange'', invented in 1903 by Harry E. Gavitt of |
Pit (nuclear Weapon)
In nuclear weapon design, the pit is the core of an implosion nuclear weapon, consisting of fissile material and any neutron reflector or tamper bonded to it. Early pits were spherical, while most modern pits are prolate spheroidal. Some weapons tested during the 1950s used pits made with uranium-235 alone, or as a composite with plutonium. All-plutonium pits are the smallest in diameter and have been the standard since the early 1960s. The pit is named after the hard core found in stonefruit such as peaches and apricots. Designs The pits of the first nuclear weapons were solid, with an ''urchin'' neutron initiator in their center. The Gadget and Fat Man used pits made of 6.2 kg of solid hot pressed plutonium-gallium alloy (at 400 °C and 200 MPa in steel dies – and ) half-spheres of diameter, with a internal cavity for the initiator. The Gadget's pit was electroplated with 0.13 mm of silver because of plutonium's susceptibility to cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit Martin
Hubert Jacques "Pit" Martin (December 9, 1943 – November 30, 2008) was a Canadian professional ice hockey centre who served as captain for the Chicago Black Hawks of the National Hockey League (NHL) from 1975 to 1977. He was an NHL All-Star and Bill Masterton Memorial Trophy winner. Martin played seventeen seasons in the NHL for the Detroit Red Wings, Boston Bruins, Chicago Black Hawks and Vancouver Canucks. Playing career Nicknamed Pit is hunter pula, Martin was scouted by former NHL goaltender Wilf Cude and joined the Red Wings organization. He is remembered among hockey fans as being involved in one of the most one-sided trades in history. Martin got his first NHL goal as a member of the Detroit Red Wings in his team's 5-2 loss to the Montreal Canadiens on December 7, 1963. Martin scored four goals in a single game on January 27, 1966 in Boston's 5-3 victory over Chicago. In May 1967, Martin, along with Gilles Marotte and Jack Norris, was traded from Boston to Chicago f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit (motor Racing)
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Pitstop may refer to: * Pit stop, in motor racing, when the car stops in the pits for fuel and other consumables to be renewed or replenished * ''Pit Stop'' (1969 film), a movie directed by Jack Hill * ''Pit Stop'' (2013 film), a movie directed by Yen Tan * ''Pitstop'' (video game), a 1983 computer game by Epyx * Penelope Pitstop, a cartoon character * ''Pit Stop,'' an album by The Ziggens The Ziggens are an American band based out of Huntington Beach, California, United States, whose self-described style of "cowpunksurfabilly" combines elements of cowpunk, surf, rockabilly Rockabilly is one of the earliest styles of rock an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosh Pit
Moshing (also known as slam dancing or simply slamming) is an extreme style of dancing in which participants push or slam into each other. Taking place in an area called the mosh pit (or simply the pit), it is typically performed to aggressive styles of live music such as punk rock and heavy metal. The dance style originated in the southern California hardcore punk scene, particularly Huntington Beach and Long Beach around 1978. Through the 1980s it spread to the hardcore scenes of Washington, D.C., Boston and New York where it developed local variants. In New York, the crossover between the city's hardcore scene and its metal scene led to moshing incorporating itself into metal beginning around 1985. In the 1990s, the success of grunge music led to moshing entering mainstream understanding and soon being incorporated into genres like electronic dance music and hip hop. Due to its violence, moshing has been subject to controversy, with a number of concert venues banning t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit (botany)
Pits are relatively thinner portions of the cell wall that adjacent cell (biology), cells can Cell communication, communicate or exchange fluid through. Pits are characteristic of cell walls with Cell wall#Rigidity of cell walls, secondary layers. Generally each pit has a complementary pit opposite of it in the neighboring cell. These complementary pits are called "pit pairs". Pits are composed of three parts: the pit chamber, the pit aperture, and the pit membrane. The pit chamber is the hollow area where the secondary layers of the cell wall are absent. The pit aperture is the opening at either end of the pit chamber. The pit membrane is the primary cell wall and middle lamella, or the membrane between adjacent cell walls, at the middle of the pit chamber. The primary cell wall at the pit membrane may also have depressions similar to the pit depressions of the secondary layers. These depressions are primary pit-fields, or primary pits. In the primary pit, the primordial pit pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-pit Mine
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin. In contrast, deeper mineral deposits can be reached using underground mining. Open-pit mining is considered one of the most dangerous sectors in the industrial world. It causes significant effects to miners' health, as well as damage to the ecological land and water. Open-pit mining causes changes to vegetation, soil, and bedrock, which ultimately contributes to changes in surface hydrology, groundwater levels, and flow paths. Additionally, open-pit produces harmful pollutants depending on the type of mineral being mined, and the type of mining process being used. Extraction Miners typically drill a series of test holes to locate an underground ore body. From ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trapping Pit
Trapping pits are deep pits dug into the ground, or built from stone, in order to trap animals. European rock drawings and cave paintings reveal that bear, moose and wolf were hunted since the Stone Age using trapping pits. Remains of trapping pits used for hunting elk, reindeer, wolves, and bears can still be found in Northern Scandinavia. These pits, which can measure up to in size and be up to several metres deep, were camouflaged with branches and leaves. They had steep sides lined with planks or masonry, making it impossible for the animal to escape once it had fallen in. When the animal had fallen into the pit, it was killed, either bled to death by sharpened sticks pointed upwards from the bottom of the pit, or in the case of pits without these sticks, dispatched by hunters waiting nearby. Some traps had a small rope enabling rodents and amphibians to escape. Pits for hunting elk (''Alces alces'') Pits for hunting Eurasian elk (moose) are normally found in large gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
