|
Millstones
Millstones or mill stones are stones used in gristmills, used for Trituration, triturating, crusher, crushing or, more specifically, grinding wheat or other grains. They are sometimes referred to as grindstones or grinding stones. Millstones come in pairs: a stationary base with a wikt:convex, convex rim known as the bedstone (or nether millstone) and a wikt:concave, concave-rimmed runner stone that rotates. The movement of the runner on top of the bedstone creates a "scissoring" action that grinds grain trapped between the stones. Millstones are constructed so that their shape and configuration help to channel ground flour to the outer edges of the mechanism for collection. The runner stone is supported by a cross-shaped metal piece (millrind or rynd) fixed to a "mace head" topping the main shaft or spindle leading to the driving mechanism of the mill (windmill , wind, watermill , water (including tide mill, tide), or other means). History The origins of an industry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gristmill
A gristmill (also: grist mill, corn mill, flour mill, feed mill or feedmill) grinds cereal grain into flour and Wheat middlings, middlings. The term can refer to either the grinding mechanism or the building that holds it. Grist is grain that has been separated from its chaff in preparation for mill (grinding), grinding. History Early history The Greek geographer Strabo reported in his ''Geography'' that a water-powered grain-mill existed near the palace of king Mithradates VI Eupator at Cabira, Asia Minor, before 71 BC. The early mills had horizontal paddle wheels, an arrangement which later became known as the "Norse wheel", as many were found in Scandinavia. The paddle wheel was attached to a shaft which was, in turn, attached to the centre of the millstone called the "runner stone". The turning force produced by the water on the paddles was transferred directly to the runner stone, causing it to grind against a stationary "Mill machinery#Watermill machinery, bed", a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watermill
A watermill or water mill is a mill that uses hydropower. It is a structure that uses a water wheel or water turbine to drive a mechanical process such as milling (grinding), rolling, or hammering. Such processes are needed in the production of many material goods, including flour, lumber, paper, textiles, and many metal products. These watermills may comprise gristmills, sawmills, paper mills, textile mills, hammermills, trip hammering mills, rolling mills, and wire drawing mills. One major way to classify watermills is by wheel orientation (vertical or horizontal), one powered by a vertical waterwheel through a gear mechanism, and the other equipped with a horizontal waterwheel without such a mechanism. The former type can be further subdivided, depending on where the water hits the wheel paddles, into undershot, overshot, breastshot and pitchback (backshot or reverse shot) waterwheel mills. Another way to classify water mills is by an essential trait about their location: tid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tide Mill
A tide mill is a water mill driven by tidal rise and fall. A dam with a sluice is created across a suitable tidal inlet, or a section of river estuary is made into a reservoir. As the tide comes in, it enters the mill pond through a one-way gate, and this gate closes automatically when the tide begins to fall. When the tide is low enough, the stored water can be released to turn a water wheel. Tide mills are usually situated in river estuaries, away from the effects of waves but close enough to the sea to have a reasonable tidal range. Cultures that built such mills have existed since the Middle Ages, and some may date back to the Roman period. A modern version of a tide mill is the electricity-generating tidal barrage. Early history Possibly the earliest tide mill in the Roman world was located in London on the River Fleet, dating to Roman times. Since the late 20th century, a number of new archaeological finds have consecutively pushed back the date of the earliest t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neanderthal
Neanderthals ( ; ''Homo neanderthalensis'' or sometimes ''H. sapiens neanderthalensis'') are an extinction, extinct group of archaic humans who inhabited Europe and Western and Central Asia during the Middle Pleistocene, Middle to Late Pleistocene. Neanderthal extinction occurred roughly 40,000 years ago with the immigration of modern humans (Cro-Magnons), but Neanderthals in Gibraltar may have persisted for thousands of years longer. The first recognised Neanderthal fossil, Neanderthal 1, was discovered in 1856 in the Neander Valley, Germany. At first, Neanderthal 1 was considered to be one of the racial hierarchy, lower races in accord with historical race concepts. As more fossils were discovered through the early 20th century, Neanderthals became characterised most especially by Marcellin Boule as a unique species of underdeveloped human. By the mid-20th century, human evolution was described as progressing from an apelike ancestor, through a "Neanderthal phase", ending ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel
A wheel is a rotating component (typically circular in shape) that is intended to turn on an axle Bearing (mechanical), bearing. The wheel is one of the key components of the wheel and axle which is one of the Simple machine, six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel, and flywheel. Common examples can be found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of axles. In order for a wheel to rotate, a Moment (physics), moment must be applied to the wheel about its axis, either by gravity or by the application of another external force or torque. Terminology The English word '':wikt:wheel, wheel'' comes from the Old English word , from Proto-Germanic language, Proto-Germanic , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pebbles (cereal)
Pebbles is a brand of breakfast cereal which was introduced in the United States by Post Consumer Brands on October 20, 1971 featuring characters from the animated series ''The Flintstones'' as spokestoons. The product line includes Cocoa Pebbles and Fruity Pebbles. Cocoa Pebbles contains chocolate-flavored crisp rice cereal bits, while Fruity Pebbles contains crisp rice cereal bits that come in a variety of fruit flavors with a sugar content of 9 grams per serving for Fruity Pebbles and 10 grams per serving for Cocoa Pebbles. It is the oldest cereal brand based on characters from a TV series or movie that is still sold. Product history Fruity Pebbles and Cocoa Pebbles Cereal were reintroductions of a low market-share Post children's cereal brand called Sugar Rice Krinkles. The Product Group Manager at the time, Larry Weiss, licensed use of ''The Flintstones'' for cereal from Hanna-Barbera Productions (now part of Warner Bros. Animation) in an attempt to reinvigorate the child ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
156 Musée Préhistoire Penmarc'h
Year 156 ( CLVI) was a leap year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Silvanus and Augurinus (or, less frequently, year 909 ''Ab urbe condita''). The denomination 156 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place America * The La Mojarra Stela 1 is produced in Mesoamerica. By topic Religion * The heresiarch Montanus first appears in Ardaban (Mysia). Births * Dong Zhao, Chinese official and minister (d. 236) * Ling of Han, Chinese emperor of the Han Dynasty (d. 189) * Pontianus of Spoleto, Christian martyr and saint (d. 175) * Zhang Zhao, Chinese general and politician (d. 236) * Zhu Zhi, Chinese general and politician (d. 224) Deaths * Marcus Gavius Maximus, Roman praetorian prefect * Zhang Daoling, Chinese Taoist master (b. AD 34 AD 34 ( XXXIV) was a common year st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victorian Government
The Victoria State Government, also referred to as the Victorian Government, is the executive government of the Australian state of Victoria. As a parliamentary constitutional monarchy, the State Government was first formed in 1851 when Victoria first gained responsible government. The Constitution of Australia regulates the relationship between the Victorian Government and the Commonwealth level of government, and cedes legislative and judicial supremacy to the federal government on conflicting matters. The Victoria State Government enforces acts passed by the parliament through government departments, statutory authorities, and other public agencies. The government is formally presided over by the governor, who exercises executive authority granted by the state's constitution through the Executive Council, a body consisting of senior cabinet ministers. In reality, both the governor and the Executive Council are largely ceremonial, with the premier and ministers having ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnhem Land
Arnhem Land is a historical region of the Northern Territory of Australia. It is located in the north-eastern corner of the territory and is around from the territorial capital, Darwin, Northern Territory, Darwin. In 1623, Dutch East India Company captain Voyage of the Pera and Arnhem to Australia in 1623, Willem Joosten van Colster (or Coolsteerdt) sailed into the Gulf of Carpentaria and Cape Arnhem is named after his ship, the ''Arnhem'', which itself was named after the city of Arnhem in the Netherlands. The area covers about and has an estimated population of 16,000, of whom 12,000 are Aboriginal and Torres Strait Islander people. Two regions are often distinguished as East Arnhem (Land) and West Arnhem (Land). The region's service hub is Nhulunbuy, east of Darwin, set up in the early 1970s as a mining town for bauxite. Other major population centres are Yirrkala (just outside Nhulunbuy), Gunbalanya (formerly Oenpelli), Ramingining, and Maningrida. A substantial proportio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aboriginal Victorians
Aboriginal Victorians, the Aboriginal Australians of Victoria, Australia, occupied the land for tens of thousands of years prior to European settlement. Aboriginal people have lived a semi-nomadic existence of fishing, hunting and gathering and associated activities for at least 40,000 years. The Aboriginal people of Victoria had developed a varied and complex set of languages, tribal alliances, beliefs and social customs that involved totemism, superstition, initiation and burial rites, and tribal moieties. History Prehistory There is some evidence to show that people were living in the Maribyrnong River valley, near present-day Keilor, about 40,000 years ago, according to Gary Presland. At the Keilor archaeological site a human hearth excavated in 1971 was radiocarbon-dated to about 31,000 years BP, making Keilor one of the earliest sites of human habitation in Australia.Gary Presland, Keilor Archaeological Site', eMelbourne website. Accessed 3 November 2008 A cranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
