|
Mitchells Creek
Mitchells Creek is a creek in central New South Wales, Australia. Rising north-east of Wellington, New South Wales, Mitchells Creek flows generally northward and joins the Talbragar River about 5 km south-west of Ballimore. The direct distance from its source to its outlet is 31 kilometres, longer via the twists and turns of the watercourse. There is usually no water in the creek. The broad valley through which the creek runs is used for growing wheat. The non-existent localities of Comobella, Windorah and Westella lie within the valley, which has no extant towns or villages. The Golden Highway crosses Mitchell's Creek immediately adjacent to where it merges into the Talbragar River. Goldfield Mitchells Creek Goldfield is claimed to be Australia's first goldfield. It is located at Bodangora near Wellington, New South Wales. Gold was apparently first found in this area by a shepherd called McGregor in Mitchells Creek on the Montefiore's squatting run, Nanima in 1848 (about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New South Wales
) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of New South Wales , established_title2 = Establishment , established_date2 = 26 January 1788 , established_title3 = Responsible government , established_date3 = 6 June 1856 , established_title4 = Federation , established_date4 = 1 January 1901 , named_for = Wales , demonym = , capital = Sydney , largest_city = capital , coordinates = , admin_center = 128 local government areas , admin_center_type = Administration , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 = Margaret Beazley , leader_title3 = Premier , leader_name3 = Dominic Perrottet ( Liberal) , national_representation = Parliament of Australia , national_representation_type1 = Sen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diorite
Diorite ( ) is an intrusive igneous rock formed by the slow cooling underground of magma (molten rock) that has a moderate content of silica and a relatively low content of alkali metals. It is intermediate in composition between low-silica ( mafic) gabbro and high-silica ( felsic) granite. Diorite is found in mountain-building belts ('' orogens'') on the margins of continents. It has the same composition as the fine-grained volcanic rock, andesite, which is also common in orogens. Diorite has been used since prehistoric times as decorative stone. It was used by the Akkadian Empire of Sargon of Akkad for funerary sculptures, and by many later civilizations for sculptures and building stone. Description Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and sometimes pyroxene. The chemical composition of diorite is intermediate, between that of mafic gabbro and fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mine Tailings
In mining, tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction ( gangue) of an ore. Tailings are different to overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed. The extraction of minerals from ore can be done two ways: placer mining, which uses water and gravity to concentrate the valuable minerals, or hard rock mining, which pulverizes the rock containing the ore and then relies on chemical reactions to concentrate the sought-after material. In the latter, the extraction of minerals from ore requires comminution, i.e., grinding the ore into fine particles to facilitate extraction of the target element(s). Because of this comminution, tailings consist of a slurry of fine particles, ranging from the size of a grain of sand to a few micrometres. Mine tailings are usually produced from the mill in slurry form, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunpowder Magazine
A gunpowder magazine is a magazine (building) designed to store the explosive gunpowder in wooden barrels for safety. Gunpowder, until superseded, was a universal explosive used in the military and for civil engineering: both applications required storage magazines. Most magazines were purely functional and tended to be in remote and secure locations. They are the successor to the earlier powder towers and powder houses. In Australia Historic magazines were at the following locations, among others: *Jack's Magazine, Saltwater River, Victoria *Goat Island, Sydney *Spectacle Island (Port Jackson) Spectacle Island is an island in the Parramatta River and Sydney Harbour, in Sydney, Australia. It lies in the main channel of the western section of the harbour, upstream of the Harbour Bridge, adjacent to the Sydney suburb of Drummoyne. Th ... * North Arm Powder Magazine *Dry Creek explosives depot In Canada There are magazines at: *Citadel Hill (Fort George) *Citadel of Qu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blake And Knowles Steam Pump Company National Register District
The Blake and Knowles Steam Pump Company National Register District encompasses the historical industrial complex of the Blake and Knowles Steam Pump Company and its successor, the Worthington Pump and Machinery Corporation in East Cambridge, Massachusetts. It is located in a one-block area surrounded by Third, Rogers, Binney, and Fifth Streets. The property was developed by the Blake and Knowles Steam Pump Company, one of the nation's leading manufacturer of industrial pumps from the late 19th century into the mid-20th century. The district was listed on the National Register of Historic Places in 1997. Description and history George Blake was the owner of a brickyard in Medford who developed pumps for removing water from brickyard clay pits. Establishing a pump factory in Boston in 1864, he moved to this site in 1886. In 1879 he entered into a financial arrangement with Lucius Knowles, another pump manufacturer, and their two businesses were formally merged in 1897. By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrite
The mineral pyrite (), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of ''fool's gold''. The color has also led to the nicknames ''brass'', ''brazzle'', and ''Brazil'', primarily used to refer to pyrite found in coal. The name ''pyrite'' is derived from the Greek (), 'stone or mineral which strikes fire', in turn from (), 'fire'. In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against steel; Pliny the Elder described one of them as being brassy, almost certainly a reference to what we now call pyrite. By Georgius Agricola's time, , the term had become a generic term for all of the sulfide minerals. Pyrite is usually found associated with other sulfides or oxides in quartz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tangye Single-cylinder Horizontal Steam Engine - Geograph
Tangye is a surname of Breton origin and is common in Cornwall. It may refer to: * Richard Tangye, industrialist (1833–1906) **His son, Sir , 1st Baronet (1866–1935) ***His son, Sir , 2nd Baronet (1895–1969) ** His son, Lt. Colonel O.B.E., JP *** His son Derek Tangye **** Derek's wife Jean Tangye *** His son Nigel Tangye ** His niece, Helena Tangye Lean *** Her son Edward Tangye Lean *** Her son David Tangye Lean, aka David Lean * George Tangye, Richard's brother See also * Tangye baronets The Tangye Baronetcy, of Glendorgal in the parish of St Columb Minor in the County of Cornwall, was a title in the Baronetage of the United Kingdom. It was created on 10 July 1912 for the industrialist Harold Tangye. He was the eldest son of the ... * Tanguy References Further reading *Scott, Tim, ed. (1999) ''Cornish Connections: the Tangye checklist; Derek Tangye, Jean Nicol-Tangye & Nigel Tangye''; 2nd ed. Wokingham: Cornish Connections / Hare's Ear {{ISBN, 0-9515686-6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flued Boiler
A shell or flued boiler is an early and relatively simple form of boiler used to make steam, usually for the purpose of driving a steam engine. The design marked a transitional stage in boiler development, between the early haystack boilers and the later multi-tube fire-tube boilers. A flued boiler is characterized by a large cylindrical boiler shell forming a tank of water, traversed by one or more large flues containing the furnace. These boilers appeared around the start of the 19th century and some forms remain in service today. Although mostly used for static steam plants, some were used in early steam vehicles, railway locomotives and ships. Flued boilers were developed in an attempt to raise steam pressures and improve engine efficiency. Early haystack designs of Watt's day were mechanically weak and often presented an unsupported flat surface to the fire. Boiler explosions, usually beginning with failure of this firebox plate, were common. It was known that an arched st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornish Boiler
A shell or flued boiler is an early and relatively simple form of boiler used to make steam, usually for the purpose of driving a steam engine. The design marked a transitional stage in boiler development, between the early haystack boilers and the later multi-tube fire-tube boilers. A flued boiler is characterized by a large cylindrical boiler shell forming a tank of water, traversed by one or more large flues containing the furnace. These boilers appeared around the start of the 19th century and some forms remain in service today. Although mostly used for static steam plants, some were used in early steam vehicles, railway locomotives and ships. Flued boilers were developed in an attempt to raise steam pressures and improve engine efficiency. Early haystack designs of Watt's day were mechanically weak and often presented an unsupported flat surface to the fire. Boiler explosions, usually beginning with failure of this firebox plate, were common. It was known that an arched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crusher
A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, sand or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated. Crushing is the process of transferring a force amplified by mechanical advantage through a material made of molecules that bond together more strongly, and resist deformation more, than those in the material being crushed do. Crushing devices hold material between two parallel or tangent solid surfaces, and apply sufficient force to bring the surfaces together to generate enough energy within the material being crushed so that its molecules separate from (fracturing), or change alignment in relation to (deformation), each other. The earliest crushers were hand-held stones, where the weight of the stone provided a bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galvanized
Galvanization or galvanizing ( also spelled galvanisation or galvanising) is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are submerged in a bath of hot, molten zinc. Protective action The zinc coating, when intact, prevents corrosive substances from reaching the underlying iron. Additional electroplating such as a chromate conversion coating may be applied to provide further surface passivation to the substrate material. History and etymology The earliest known example of galvanized iron was encountered by Europeans on 17th-century Indian armour in the Royal Armouries Museum collection. The term "galvanized" continues to be used metaphorically of any stimulus which results in activity by a person or group of people. In modern usage, the term "galvanizing" has largely come to be associated with zinc coatings, to the exclusion of other metals. Galvanic paint, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wire Rope
Steel wire rope (right hand lang lay) Wire rope is several strands of metal wire twisted into a helix forming a composite '' rope'', in a pattern known as ''laid rope''. Larger diameter wire rope consists of multiple strands of such laid rope in a pattern known as ''cable laid''. In stricter senses, the term ''wire rope'' refers to a diameter larger than , with smaller gauges designated cable or cords. Initially wrought iron wires were used, but today steel is the main material used for wire ropes. Historically, wire rope evolved from wrought iron chains, which had a record of mechanical failure. While flaws in chain links or solid steel bars can lead to catastrophic failure, flaws in the wires making up a steel cable are less critical as the other wires easily take up the load. While friction between the individual wires and strands causes wear over the life of the rope, it also helps to compensate for minor failures in the short run. Wire ropes were developed starting with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Cornish Boiler")
