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Henry Roscoe (chemist)
Sir Henry Enfield Roscoe (7 January 1833 – 18 December 1915) was a British chemist. He is particularly noted for early work on vanadium, photochemical studies, and his assistance in creating Oxo, in its earlier liquid form. Life and work Henry Enfield Roscoe was born in London, the son of Henry Roscoe (1800–1836) and Maria Roscoe, née Fletcher (1798–1885), and grandson of William Roscoe (1753–1831). Stanley Jevons the Australian economist was a cousin. Roscoe studied at the Liverpool Institute for Boys and University College London. He then went to Heidelberg to work under Robert Bunsen, who became a lifelong friend. He also befriended William Dittmar. In 1857, Roscoe returned to England with Dittmar and was appointed to the chair of chemistry at Owens College, Manchester, with Dittmar as his assistant. In 1858 the state of the college was such that the ''Manchester Guardian'' called it "a mortifying failure". In the same year Roscoe was accosted by a tramp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Professor
Professor (commonly abbreviated as Prof.) is an Academy, academic rank at university, universities and other tertiary education, post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a 'person who professes'. Professors are usually experts in their field and teachers of the highest rank. In most systems of List of academic ranks, academic ranks, "professor" as an unqualified title refers only to the most senior academic position, sometimes informally known as "full professor". In some countries and institutions, the word ''professor'' is also used in titles of lower ranks such as associate professor and assistant professor; this is particularly the case in the United States, where the unqualified word is also used colloquially to refer to associate and assistant professors as well, and often to instructors or lecturers. Professors often conduct original research and commonly teach undergraduate, Postgraduate educa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stanley Jevons
William Stanley Jevons (; 1 September 1835 – 13 August 1882) was an English economist and logician. Irving Fisher described Jevons's book ''A General Mathematical Theory of Political Economy'' (1862) as the start of the mathematical method in economics. It made the case that economics, as a science concerned with quantities, is necessarily mathematical. In so doing, it expounded upon the "final" (marginal) utility theory of value. Jevons' work, along with similar discoveries made by Carl Menger in Vienna (1871) and by Léon Walras in Switzerland (1874), marked the opening of a new period in the history of economic thought. Jevons's contribution to the marginal revolution in economics in the late 19th century established his reputation as a leading political economist and logician of the time. Jevons broke off his studies of the natural sciences in London in 1854 to work as an assayer in Sydney, where he acquired an interest in political economy. Returning to the UK in 1859 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flash (photography)
A flash is a device used in photography that produces a brief burst of light (lasting around of a second) at a color temperature of about 5500 K to help illuminate a scene. The main purpose of a flash is to illuminate a dark scene. Other uses are capturing quickly moving objects or changing the quality of light. ''Flash'' refers either to the flash of light itself or to the electronic flash unit discharging the light. Most current flash units are electronic, having evolved from single-use flashbulbs and flammable powders. Modern cameras often activate flash units automatically. Flash units are commonly built directly into a camera. Some cameras allow separate flash units to be mounted via a standardized accessory mount bracket (a '' hot shoe''). In professional studio equipment, flashes may be large, standalone units, or studio strobes, powered by special battery packs or connected to mains power. They are either synchronized with the camera using a flash synchronization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of London
The University of London (UoL; abbreviated as Lond or more rarely Londin in Post-nominal letters, post-nominals) is a collegiate university, federal Public university, public research university located in London, England, United Kingdom. The university was established by royal charter in 1836 as a degree-awarding examination board for students holding certificates from University College London, King's College London and "other such institutions, corporate or unincorporated, as shall be established for the purpose of Education, whether within the Metropolis or elsewhere within our United Kingdom". It is one of three institutions to have claimed the title of the Third-oldest university in England debate, third-oldest university in England. It moved to a federal structure with constituent colleges in 1900. It is now incorporated by its fourth (1863) royal charter and governed by the University of London Act 2018 (c. iii). The university consists of Member institutions of the Un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manchester South (UK Parliament Constituency)
Manchester South was one of six Parliamentary constituency, parliamentary constituencies created in 1885 by the division of the Manchester (UK Parliament constituency), Parliamentary Borough of Manchester, England. It returned one Member of Parliament (United Kingdom), Member of Parliament (MP) to the House of Commons of the United Kingdom, House of Commons of the Parliament of the United Kingdom, elected by the first-past-the-post voting system. The constituency was abolished in 1918. Boundaries The constituency was created by the Redistribution of Seats Act 1885, and consisted of the following areas: *The part of the civil parish of Chorlton upon Medlock south of the centres of the following roads: Cavendish Street, Grosvenor Street, Upper Brook Street, Dover Street, St. Leonards Street. (The remainder of the parish was included in the Manchester East (UK Parliament constituency), Manchester East constituency.) *The Local Board of Health, Local Government district of Moss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Of Chemical Industry
The Society of Chemical Industry (SCI) is a learned society set up in 1881 "to further the application of chemistry and related sciences for the public benefit". Offices The society's headquarters is in Belgrave Square, London. There are semi-independent branches in the United States, Canada and Australia. Aims The society aims to accelerate the rate of scientific innovations being commercialised by industry to benefit society. It does this through promoting collaborations between scientists and industrialists, running technical and innovation conferences, building communities across academia and industry and publishing scientific content through its journals and digital platforms. It also promotes science education. History On 21 November 1879, Lancashire chemist John Hargreaves canvassed a meeting of chemists and managers in Widnes, St Helens and Runcorn to consider the formation of a chemical society. Modelled on the successful Tyne Chemical Society already operating in New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portrait Of A University
A portrait is a painting, photograph, sculpture, or other artistic representation of a person, in which the face is always predominant. In arts, a portrait may be represented as half body and even full body. If the subject in full body better represents personality and mood, this type of presentation may be chosen. The intent is to display the likeness, personality, and even the mood of the person. For this reason, in photography a portrait is generally not a snapshot, but a composed image of a person in a still position. A portrait often shows a person looking directly at the painter or photographer, to most successfully engage the subject with the viewer, but portrait may be represented as a profile (from aside) and 3/4. History Prehistorical portraiture Plastered human skulls were reconstructed human skulls that were made in the ancient Levant between 9000 and 6000 BC in the Pre-Pottery Neolithic B period. They represent some of the oldest forms of art in the Middle E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria University (UK)
Victoria University was an English federal university established by royal charter on 20 April 1880 at Manchester. It was the fifth university founded in England, established as a university for the North of England open to affiliation by colleges such as Owens College, which immediately did so. University College Liverpool joined the university in 1884, followed by Yorkshire College, Leeds, in 1887. The university and the colleges were distinct corporate bodies until Owens College merged with the university in 1904. A supplemental charter of 1883 enabled the granting of degrees in medicine and surgery. History The aspirations of Manchester and Liverpool to become independent city universities meant that the Victoria University was short-lived. Liverpool left the university in 1903 to become the University of Liverpool; Leeds was granted its own royal charter in 1904 and became the University of Leeds; Manchester, the only remaining site, was granted a new royal charter as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manchester
Manchester () is a city and the metropolitan borough of Greater Manchester, England. It had an estimated population of in . Greater Manchester is the third-most populous metropolitan area in the United Kingdom, with a population of 2.92 million, and the largest in Northern England. It borders the Cheshire Plain to the south, the Pennines to the north and east, and the neighbouring city of Salford to the west. The city borders the boroughs of Trafford, Metropolitan Borough of Stockport, Stockport, Tameside, Metropolitan Borough of Oldham, Oldham, Metropolitan Borough of Rochdale, Rochdale, Metropolitan Borough of Bury, Bury and City of Salford, Salford. The history of Manchester began with the civilian settlement associated with the Roman fort (''castra'') of Mamucium, ''Mamucium'' or ''Mancunium'', established on a sandstone bluff near the confluence of the rivers River Medlock, Medlock and River Irwell, Irwell. Throughout the Middle Ages, Manchester remained a ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Owens College
Owens may refer to: Places in the United States * Owens Station, Delaware * Owens Township, St. Louis County, Minnesota * Owens, Missouri * Owens, Ohio * Owens, Texas * Owens, Virginia People * Owens (surname), including a list of people with the name * Owens Brown, American politician and activist in West Virginia * Owens Wiwa, Nigerian doctor and human rights activist Other uses *'' Owens v Owens'', 2018 divorce case in the Supreme Court of the United Kingdom *Victoria University of Manchester The Victoria University of Manchester, usually referred to as simply the University of Manchester, was a university in Manchester, England. It was founded in 1851 as Owens College. In 1880, the college joined the federal Victoria University. A ..., once known as Owens College (an unofficial name sometimes used by staff and students at UMIST) * Owens Corning, an American glass company See also * Owen's (other) * Owen (other) * Owain (other) {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Dittmar
William Dittmar (1833 – 1892) was a German-born scientist renowned as a chemical analyst. He was based largely in Scotland. He did much analytical work on the findings from the ''Challenger'' expedition. He was the first to confirm the Principle of Constant Proportions, a theory first conjectured in 1865 by Johan Georg Forchhammer regarding the major ions of sea-water: that whilst salinity varied across the oceans, the ratios of ionic abundance remained constant. As a result, this principle is often called "" or "Forchhammer's Principle". His research also included calculations of the atomic weight of platinum, and the examination of hydrates, carbonates and peroxides of the alkali metals. Life He was born in Umstadt near Darmstadt in western Germany on 14/15 April 1833, the second son of Fritz Dittmar, an assessor at Umstadt. In 1848 he was apprenticed as a pharmacist at the Hof Apotheker in Darmstadt.Nature (magazine): obituary 24 March 1892 He passed the "Gehülfe Examen" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Bunsen
Robert Wilhelm Eberhard Bunsen (; 30 March 1811 – 16 August 1899) was a German chemist. He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with the physicist Gustav Kirchhoff. The Bunsen–Kirchhoff Award for spectroscopy is named after Bunsen and Kirchhoff. Bunsen also developed several gas-analytical methods, was a pioneer in photochemistry, and did early work in the field of organic arsenic chemistry. With his laboratory assistant Peter Desaga, he developed the Bunsen burner, an improvement on the laboratory burners then in use. Early life and education Bunsen was born in Göttingen, Germany, in 1811, in what is now the state of Lower Saxony in Germany. Bunsen was the youngest of four sons of the University of Göttingen's chief librarian and professor of modern philology, Christian Bunsen (1770–1837). After attending school in Holzminden, Bunsen matriculated at Göttingen in 1828 and studied chemistry wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
