|
Chandler, Western Australia
Chandler is a rural locality between Merredin and Mukinbudin in the Wheatbelt region of Western Australia. It had a population of 104 at the 2006 census. Initially established to serve the nearby alunite (a source of potash) mine at nearby Lake Campion, land was set aside in 1942 for a townsite. Lots were surveyed soon afterward and the town was gazetted in 1943. The mine was a state government project with government employees that was needed following the supplies of the mineral being cut off after the commencement of World War II. A potash works was erected in the town reserve in 1943. Following the war, the government closed down the plant once supply of Alunite had normalised. The company, Australian Plaster Industries, then took up a lease in the area and in 1949 commenced production of gypsum that is used in the manufacture of plaster of paris and plasterboard. During that time, the town boomed and had two main streets, over 70 houses, a telephone exchange, a school ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shire Of Nungarin
The Shire of Nungarin is a Local government areas of Western Australia, local government area in the Wheatbelt (Western Australia), Wheatbelt region of Western Australia, and with a population of 257 as at the , is one of the nation's smallest. It is located about north of Merredin, Western Australia, Merredin and about east of the state capital, Perth. The Shire covers an area of , and its seat of government is the town of Nungarin, Western Australia, Nungarin. History Initially, Nungarin was governed by the Kellerberrin Road Board. In 1911, responsibility for the area was transferred to the Merredin Road Board. The Shire of Nungarin originated as the Nungarin Road District, which was gazetted on 24 March 1921. It was originally much larger, extending north into what is now the Shire of Mount Marshall until losing a section to that road board on 6 July 1923. In 1933, it included the Bonnie Rock, Western Australia, Bonnie Rock, Campion, Western Australia, Campion, Lake Bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Campion
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
School
A school is an educational institution designed to provide learning spaces and learning environments for the teaching of students under the direction of teachers. Most countries have systems of formal education, which is sometimes compulsory. In these systems, students progress through a series of schools. The names for these schools vary by country (discussed in the '' Regional terms'' section below) but generally include primary school for young children and secondary school for teenagers who have completed primary education. An institution where higher education is taught is commonly called a university college or university. In addition to these core schools, students in a given country may also attend schools before and after primary (elementary in the U.S.) and secondary (middle school in the U.S.) education. Kindergarten or preschool provide some schooling to very young children (typically ages 3–5). University, vocational school, college or seminary may be avail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Exchange
A telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital systems to establish telephone calls between subscribers. In historical perspective, telecommunication terms have been used with different semantics over time. The term ''telephone exchange'' is often used synonymously with ''central office'', a Bell System term. Often, a ''central office'' is defined as a building used to house the inside plant equipment of potentially several telephone exchanges, each serving a certain geographical area. Such an area has also been referred to as the exchange or exchange area. In North America, a central office location may also be identified as a ''wire center'', designating a facility to which a telephone is connected and obtains dial tone. For business and billing purposes, telecommunication carriers defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasterboard
Drywall (also called plasterboard, dry lining, wallboard, sheet rock, gypsum board, buster board, custard board, and gypsum panel) is a panel made of calcium sulfate dihydrate (gypsum), with or without additives, typically extruded between thick sheets of facer and backer paper, used in the construction of interior walls and ceilings. The plaster is mixed with fiber (typically paper, glass wool, or a combination of these materials); plasticizer, foaming agent; and additives that can reduce mildew, flammability, and water absorption. In the middle of the 20th century, drywall construction became prevalent in North America as a time- and labor-saving alternative to lath and plaster. History The first plasterboard plant in the UK was opened in 1888 in Rochester, Kent. Sackett Board was invented in 1894 by Augustine Sackett and Fred Kane, graduates of Rensselaer Polytechnic Institute. It was made by layering plaster within four plies of wool felt paper. Sheets were thick with open ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plaster Of Paris
Plaster is a building material used for the protective or decorative coating of walls and ceilings and for moulding and casting decorative elements. In English, "plaster" usually means a material used for the interiors of buildings, while "render" commonly refers to external applications. Another imprecise term used for the material is stucco, which is also often used for plasterwork that is worked in some way to produce relief decoration, rather than flat surfaces. The most common types of plaster mainly contain either gypsum, lime, or cement,Franz Wirsching "Calcium Sulfate" in Ullmann's Encyclopedia of Industrial Chemistry, 2012 Wiley-VCH, Weinheim. but all work in a similar way. The plaster is manufactured as a dry powder and is mixed with water to form a stiff but workable paste immediately before it is applied to the surface. The reaction with water liberates heat through crystallization and the hydrated plaster then hardens. Plaster can be relatively easily worked wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gypsum
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywall. Alabaster, a fine-grained white or lightly tinted variety of gypsum, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval England. Gypsum also crystallizes as translucent crystals of selenite. It forms as an evaporite mineral and as a hydration product of anhydrite. The Mohs scale of mineral hardness defines gypsum as hardness value 2 based on scratch hardness comparison. Etymology and history The word ''gypsum'' is derived from the Greek word (), "plaster". Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcined gypsum) used for various purposes, this dehydrated gypsum became known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potash Works
A potash works (german: Aschenhaus, ''Aschenhütte'' or ''Potaschhütte'') was a subsidiary operation of a glassworks in the Early Modern Period. The latter needed potash, as well as quartz and lime as raw materials for the manufacture of glass. Potash acted as a flux in the production process, that is by mixing it with quartz sand it significantly reduced the melting point of the latter. To make potash the glassworks built potash huts or works in the vicinity, in which wood ash and vegetable ash was gathered by ash burners and initially washed in water and then vaporized; the whole process being known as leaching. Contemporary witness, teacher and local historian, Lukas Grünenwald, recorded the recollections from his youth in Dernbach in the Palatinate region:Helmut Seebach: ''Altes Handwerk und Gewerbe in der Pfalz.'' Vol. 3: ''Pfälzerwald. Waldbauern, Waldarbeiter, Waldprodukte- und Holzwarenhandel, Waldindustrie und Holztransport.'' Bachstelz-Verlag, Annweiler-Queichhambach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potash
Potash () includes various mined and manufactured salts that contain potassium in water-soluble form.Potash USGS 2008 Minerals Yearbook The name derives from ''pot ash'', plant ashes or soaked in water in a pot, the primary means of manufacturing potash before the . The word '''' is derived from ''potash''. Potash is produced worldwide in amounts exceeding 90 million |
Electoral District Of Central Wheatbelt
Central Wheatbelt is an electoral district of the Legislative Assembly in the Australian state of Western Australia. As the name suggests, the district is centrally located in the Wheatbelt region of Western Australia. Politically, Central Wheatbelt is a safe National Party seat. History Central Wheatbelt was first created for the 2008 state election. It was essentially an amalgamation of the abolished National-held districts of Avon and Merredin, although parts of each ended up in neighbouring districts. Roughly half the new district's voters came from each of the two former districts. The original proposal had the newly created district persisting with the name Merredin. However, this was the focus of several objections, as Merredin is but one town in the eastern part of this sizeable electorate. Instead, the more generic name of Central Wheatbelt was adopted. Geography Central Wheatbelt incorporates a number of rural inland shires to the east of Perth. Its population ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alunite
Alunite is a hydroxylated aluminium potassium sulfate mineral, formula K Al3( S O4)2(O H)6. It was first observed in the 15th century at Tolfa, near Rome, where it was mined for the manufacture of alum. First called ''aluminilite'' by J.C. Delamétherie in 1797, this name was contracted by François Beudant three decades later to alunite. Alunite crystals morphologically are rhombohedron, rhombohedra with interfacial angles of 90° 50', causing them to resemble cubes. Crystal symmetry is trigonal. Minute glistening crystals have also been found loose in cavities in altered rhyolite. Alunite varies in color from white to yellow gray. The hardness on the Mohs scale is 4 and the specific gravity is between 2.6 and 2.8. It is insoluble in water or weak acids, but soluble in sulfuric acid. Sodium can substitute for potassium in the mineral, and when the sodium content is high, is called natroalunite. Alunite is an analog of jarosite, where aluminium replaces Fe3+. Alunite o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Telephone Exchange")
