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George Green (mathematician)
George Green (14 July 1793 – 31 May 1841) was a British mathematical physicist who wrote '' An Essay on the Application of Mathematical Analysis to the Theories of Electricity and Magnetism'' in 1828. The essay introduced several important concepts, among them a theorem similar to the modern Green's theorem, the idea of potential functions as currently used in physics, and the concept of what are now called Green's functions. Green was the first person to create a mathematical theory of electricity and magnetism and his theory formed the foundation for the work of other scientists such as James Clerk Maxwell, William Thomson, and others. His work on potential theory ran parallel to that of Carl Friedrich Gauss. Green's life story is remarkable in that he was almost entirely self-taught. He received only about one year of formal schooling as a child, between the ages of 8 and 9. Early life Green was born and lived for most of his life in the English town of Sneinton, Nottin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sneinton
Sneinton (pronounced "Snenton") is a suburb of Nottingham, England. The area is bounded by Nottingham city centre to the west, Bakersfield to the north, Colwick to the east, and the River Trent to the south. Sneinton lies within the unitary authority of Nottingham City, having been part of the borough of Nottingham since 1877. Sneinton existed as a village since at least 1086, but remained relatively unchanged until the industrial era, when the population dramatically expanded. Further social change in the post-war period left Sneinton with a multicultural character. Sneinton residents of note include William Booth, founder of The Salvation Army, and mathematician George Green, who worked Green's Mill at the top of Belvoir Hill. In modern times, regeneration has seen most of the old telephone exchange converted into student accommodation, the market place replaced by a pedestrian plaza and the wholesale fruit and fish market units in the traditional avenue layout re-used f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Clerk Maxwell
James Clerk Maxwell (13 June 1831 – 5 November 1879) was a Scottish mathematician and scientist responsible for the classical theory of electromagnetic radiation, which was the first theory to describe electricity, magnetism and light as different manifestations of the same phenomenon. Maxwell's equations for electromagnetism have been called the " second great unification in physics" where the first one had been realised by Isaac Newton. With the publication of "A Dynamical Theory of the Electromagnetic Field" in 1865, Maxwell demonstrated that electric and magnetic fields travel through space as waves moving at the speed of light. He proposed that light is an undulation in the same medium that is the cause of electric and magnetic phenomena. (This article accompanied an 8 December 1864 presentation by Maxwell to the Royal Society. His statement that "light and magnetism are affections of the same substance" is at page 499.) The unification of light and electrical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miller
A miller is a person who operates a Gristmill, mill, a machine to grind a grain (for example corn or wheat) to make flour. Mill (grinding), Milling is among the oldest of human occupations. "Miller", "Milne" and other variants are common surnames, as are their equivalents in other languages around the world ("Melnyk (surname), Melnyk" in Russian language, Russian, Belorussian language, Belorussian & Ukrainian language, Ukrainian, "Meunier (other), Meunier" in French language, French, "Müller (surname), Müller" or "Mueller (surname), Mueller" in German language, German, "Mulder" and "Molenaar" in Dutch language, Dutch, "Molnár" in Hungarian language, Hungarian, "Molinero" in Spanish language, Spanish, "Molinaro" or "Molinari" in Italian language, Italian etc.). Milling existed in hunter-gatherer communities, and later millers were important to the history of agriculture, development of agriculture. The materials ground by millers are often foodstuffs and particularly c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gentry
Gentry (from Old French ''genterie'', from ''gentil'', "high-born, noble") are "well-born, genteel and well-bred people" of high social class, especially in the past. Word similar to gentle [simple and decent] families ''Gentry'', in its widest connotation, refers to people of good social position connected to landed estates (see manorialism), upper levels of the clergy, and "gentle" families of long descent who in some cases never obtained the official right to bear a coat of arms. The gentry largely consisted of landowners who could live entirely from rental income, or at least had a Estate (land), country estate; some were gentleman farmers. In the United Kingdom, the term ''gentry'' refers to the landed gentry: the majority of the land-owning social class who typically had a coat of arms, but did not have a Peerages in the United Kingdom, peerage. The adjective "Patrician (post-Roman Europe), patrician" ("of or like a person of high social rank") describes in comparison other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Bromhead
Sir Edward Thomas ffrench Bromhead, 2nd Baronet FRS FRSE (26 March 1789 – 14 March 1855) was a British landowner and mathematician, best remembered as patron of the mathematician and physicist George Green and mentor of George Boole. Life Born the son of Gonville Bromhead, 1st Baronet Bromhead (grandfather of the British second in command of the same name at Rorke's Drift) and Lady Jane ffrench, Baroness ffrench, in Dublin. Bromhead was educated at the University of Glasgow and later at Caius College, Cambridge ( B.A. 1812, M.A. 1815) before taking up the study of law at the Inner Temple in London. He was elected a Fellow of the Royal Society in 1817. Returning to Lincolnshire, he became High Steward of Lincoln. He became the 2nd Bromhead baronet, of Thurlby Hall in 1822. While at Cambridge, Bromhead was a founder of the Analytical Society, a precursor of the Cambridge Philosophical Society, together with John Herschel, George Peacock and Charles Babbage, with whom he mainta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromley House Library
Bromley House Library (originally the Nottingham Subscription Library) is a subscription library in Nottingham. Premises The library is situated in Bromley House, a Georgian townhouse in Nottingham city centre. This building is grade II* listed and retains many original features. It was built in 1752 as his town house by Sir George Smith, 1st Baronet (1714-1769) of Stoke Hall, East Stoke, Nottinghamshire, a grandson of the founder of Smith's Bank in Nottingham, the oldest known provincial bank in the United Kingdom. He used part as an office for transacting his lucrative business as Collector of the Land Tax. In 1929 Evans, Clark and Woollatt added a new doorway and frontage, allowing the ground floor to be converted for retail use. In the first-floor 'Standfast Library' is a meridian line, dating from 1836 and used to set clocks to Noon 'local' time in the days before railway time or Greenwich Mean Time was introduced as the British standard. The longcase clock in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millstone
Millstones or mill stones are stones used in gristmills, for grinding wheat or other grains. They are sometimes referred to as grindstones or grinding stones. Millstones come in pairs: a convex stationary base known as the ''bedstone'' and a concave ''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 (wind, water (including tide) or other means). History The earliest evidence for stones used to grind food is found in northern Australia, at the Madjedbebe rock shelter in Arnhem Land, dating back around 60,000 years. Grinding stones or grindston ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green's Windmill
Green's Windmill is a restored and working 19th century tower windmill in Sneinton, Nottingham. Built in the early 1800s for the milling of wheat into flour, it remained in use until the 1860s. It was renovated in the 1980s and is now part of a science centre, which together have become a local tourist attraction. History The current tower mill was built shortly after 1807 by baker George Green. It is located on the site of a previous post mill and there were at least two other mills on Windmill Lane in Sneinton.Green's Mill, Its History and Working. Denny Plowman. Department of Leisure and Community Services, City of Nottingham. December 1993. In 1829 the elder Green died and his son, the mathematical physicist George Green, inherited the mill. Around this time, a visitor to the mill describes its operation: "I ascertained some facts relative to the economy of a wind-mill. His sails have a radius of twelve yards and they revolve twenty five times a minute, or more than a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial Revolution
The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going from hand production methods to machines, new chemical manufacturing and iron production processes, the increasing use of steam power and water power, the development of machine tools and the rise of the mechanized factory system. Output greatly increased, and a result was an unprecedented rise in population and in the rate of population growth. Textiles were the dominant industry of the Industrial Revolution in terms of employment, value of output and capital invested. The textile industry was also the first to use modern production methods. The Industrial Revolution began in Great Britain, and many of the technological and architectural innovations were of British origin. By the mid-18th century, Britain was the world's leadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Term
An academic term (or simply term) is a portion of an academic year, the time during which an educational institution holds classes. The schedules adopted vary widely. In most countries, the academic year begins in late summer or early autumn and ends during the following spring or summer. In Northern Hemisphere countries, this means that the academic year lasts from August, September, or October to May, June, or July. In Southern Hemisphere countries, the academic year aligns with the calendar year, lasting from February or March to November or December. The summer may or may not be part of the term system. Synonyms ''Semester'', ''trimester'' and ''quarter'' are all synonyms for an academic term (the last two being mainly confined to American English), which refer to terms of specific periods as described below: *Semester ( la, sēmestris, lit=six monthly) originally German, where it referred to a university session of six months, adopted into American usage in the early 19th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windmill
A windmill is a structure that converts wind power into rotational energy using vanes called windmill sail, sails or blades, specifically to mill (grinding), mill grain (gristmills), but the term is also extended to windpumps, wind turbines, and other applications, in some parts of the English speaking world. The term wind engine is sometimes used to describe such devices. Windmills were used throughout the High Middle Ages, high medieval and early modern periods; the horizontal or panemone windmill first appeared in Persia during the 9th century, and the vertical windmill first appeared in northwestern Europe in the 12th century. Regarded as an icon of Culture of the Netherlands, Dutch culture, there are approximately 1,000 windmills in the Netherlands today. Forerunners Wind-powered machines may have been known earlier, but there is no clear evidence of windmills before the 9th century. Hero of Alexandria (Heron) in first-century Roman Egypt described what appears to be a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
