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Accrington Grammar School
Accrington Academy is a mixed 11-18 Academy in Accrington, Lancashire. It has designated specialisms in Sports and Mathematics. It is situated in the centre of Accrington. Accrington St Christopher's C of E High is nearby to the west. History The school, run by United Learning, opened on 1 September 2008 on the site of the former Accrington Moorhead Sports College, itself the successor Moorhead High School which was the successor of the one-time Accrington High School for Girls. All pupils previously at Moorhead automatically transferred to the new school, which has had a sixth form provision from September 2009. Former schools Accrington Grammar School had around 500 boys and 100 in the sixth form in the 1970s. Accrington High School for Girls had around 600 girls. AccringtoMoorhead High Schoolwas on ''Cromwell Avenue'' off Queen's Road West. The school was founded in 1895 on Blackburn Rd, Accrington as a 'Technical School' In 1968, it moved to the Moorhead site. In 1975, follo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academy (England)
An academy school in Education in England, England is a State school, state-funded school which is directly funded by the Department for Education and independent of local authority control. The terms of the arrangements are set out in individual Academy Funding Agreements. Most academies are Secondary school , secondary schools, though slightly more than 25% of primary schools (4,363 as of December 2017) are academies. Academies are self-governing non-profit Charitable trusts in English law, charitable trusts and may receive additional support from personal or corporate sponsors, either financially or in kind. Academies are inspected and follow the same rules on admissions, special educational needs and exclusions as other state schools and students sit the same national exams. They have more autonomy with the National Curriculum for England, National Curriculum, but do have to ensure that their curriculum is broad and balanced, and that it includes the core subjects of Engli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Railway (UK)
The Southern Railway (SR), sometimes shortened to 'Southern', was a British railway company established in the 1923 Grouping. It linked London with the Channel ports, South West England, South coast resorts and Kent. The railway was formed by the amalgamation of several smaller railway companies, the largest of which were the London and South Western Railway (LSWR), the London, Brighton and South Coast Railway (LB&SCR) and the South Eastern and Chatham Railway (SE&CR).Bonavia (1987) pp. 26-28 The construction of what was to become the Southern Railway began in 1838 with the opening of the London and Southampton Railway, which was renamed the London & South Western Railway. The railway was noted for its astute use of public relations and a coherent management structure headed by Sir Herbert Walker. At , the Southern Railway was the smallest of the '' Big Four'' railway companies and, unlike the others, the majority of its revenue came from passenger traffic rather than freight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rouse Ball Professor Of Mathematics
The Rouse Ball Professorship of Mathematics is one of the senior chairs in the Mathematics Departments at the University of Cambridge and the University of Oxford. The two positions were founded in 1927 by a bequest from the mathematician W. W. Rouse Ball. At Cambridge, this bequest was made with the "hope (but not making it in any way a condition) that it might be found practicable for such Professor or Reader to include in his or her lectures and treatment historical and philosophical aspects of the subject." List of Rouse Ball Professors at Cambridge * 1928–1950 John Edensor Littlewood * 1950–1958 Abram Samoilovitch Besicovitch * 1958–1969 Harold Davenport * 1971–1993 John G. Thompson * 1994–1997 Nigel Hitchin * 1998– William Timothy Gowers List of Rouse Ball Professors at Oxford The chair at Oxford was established with a £25,000 bequest and was initially advertised by the University as a Chair in Mathematical Physics. The Rouse Ball Professor is now hosted at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Davenport–Schinzel Sequence
In combinatorics, a Davenport–Schinzel sequence is a sequence of symbols in which the number of times any two symbols may appear in alternation is limited. The maximum possible length of a Davenport–Schinzel sequence is bounded by the number of its distinct symbols multiplied by a small but nonconstant factor that depends on the number of alternations that are allowed. Davenport–Schinzel sequences were first defined in 1965 by Harold Davenport and Andrzej Schinzel to analyze linear differential equations. Following these sequences and their length bounds have also become a standard tool in discrete geometry and in the analysis of Computational geometry, geometric algorithms. Definition A finite sequence ''U'' = ''u''1, ''u''2, ''u''3, is said to be a Davenport–Schinzel sequence of order ''s'' if it satisfies the following two properties: #No two consecutive values in the sequence are equal to each other. #If ''x'' and ''y'' are two distinct values occurring in the sequence, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harold Davenport
Harold Davenport FRS (30 October 1907 – 9 June 1969) was an English mathematician, known for his extensive work in number theory. Early life Born on 30 October 1907 in Huncoat, Lancashire, Davenport was educated at Accrington Grammar School, the University of Manchester (graduating in 1927), and Trinity College, Cambridge. He became a research student of John Edensor Littlewood, working on the question of the distribution of quadratic residues. First steps in research The attack on the distribution question leads quickly to problems that are now seen to be special cases of those on local zeta-functions, for the particular case of some special hyperelliptic curves such as Y^2 = X(X-1)(X-2)\ldots (X-k). Bounds for the zeroes of the local zeta-function immediately imply bounds for sums \sum \chi(X(X-1)(X-2)\ldots (X-k)), where χ is the Legendre symbol '' modulo'' a prime number ''p'', and the sum is taken over a complete set of residues mod ''p''. In the light of this co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Chemical Industries
Imperial Chemical Industries (ICI) was a British chemical company. It was, for much of its history, the largest manufacturer in Britain. It was formed by the merger of four leading British chemical companies in 1926. Its headquarters were at Millbank in London. ICI was a constituent of the FT 30 and later the FTSE 100 indices. ICI made general chemicals, plastics, paints, pharmaceuticals and speciality products, including food ingredients, speciality polymers, electronic materials, fragrances and flavourings. In 2008, it was acquired by AkzoNobel, which immediately sold parts of ICI to Henkel and integrated ICI's remaining operations within its existing organisation. History Development of the business (1926–1944) The company was founded in December 1926 from the merger of four companies: Brunner Mond, Nobel Explosives, the United Alkali Company, and British Dyestuffs Corporation. It established its head office at Millbank in London in 1928. Competing with DuPont a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poly(methyl Methacrylate)
Poly(methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Plexiglas, Acrylite, Astariglas, Lucite, Perclax, and Perspex, among several others ( see below). This plastic is often used in sheet form as a lightweight or shatter-resistant alternative to glass. It can also be used as a casting resin, in inks and coatings, and for many other purposes. Although not a type of familiar silica-based glass, the substance, like many thermoplastics, is often technically classified as a type of glass, in that it is a non-crystalline vitreous substance—hence its occasional historic designation as ''acrylic glass''. Chemically, it is the synthetic polymer of methyl methacrylate. It was developed in 1928 in several different laboratories by many chemists, such as William Chalmers, Otto Röhm, and Walter Bauer, and first brought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methyl Methacrylate
Methyl methacrylate (MMA) is an organic compound with the formula CH2=C(CH3)COOCH3. This colorless liquid, the methyl ester of methacrylic acid (MAA), is a monomer produced on a large scale for the production of poly(methyl methacrylate) (PMMA). Production and properties Given the scale of production, many methods have been developed starting from diverse two- to four-carbon precursors.. Two principal routes appear to be commonly practiced. Cyanohydrin route The compound is manufactured by several methods, the principal one being the acetone cyanohydrin (ACH) route. ACH is produced by condensation of acetone and hydrogen cyanide. The cyanohydrin is hydrolyzed in the presence of sulfuric acid to a sulfate ester of the methacrylamide. Methanolysis of this ester gives ammonium bisulfate and MMA. Although widely used, the ACH route coproduces substantial amounts of ammonium sulfate. :(CH3)2CO + HCN → (CH3)2C(OH)CN :(CH3)2C(OH)CN + H2SO4 → (CH3)2C(OSO3H)C(O)NH2. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wesley Cocker
Wesley may refer to: People and fictional characters * Wesley (name), a given name and a surname Places United States * Wesley, Arkansas, an unincorporated community * Wesley, Georgia, an unincorporated community * Wesley Township, Will County, Illinois * Wesley, Iowa, a city in Kossuth County * Wesley Township, Kossuth County, Iowa * Wesley, Maine, a town * Wesley Township, Washington County, Ohio * Wesley, Oklahoma, an unincorporated community * Wesley, Indiana, an unincorporated town * Wesley, West Virginia, an unincorporated community Elsewhere * Wesley, a hamlet in the township of Stone Mills, Ontario, Canada * Wesley, Dominica, a village * Wesley, New Zealand, a suburb of Auckland * Wesley, Eastern Cape, South Africa, a town Schools * Wesley College (other) * Wesley Institute, Sydney, Australia * Wesley Seminary, Marion, Indiana * Wesley Biblical Seminary, Jackson, Mississippi * Wesley Theological Seminary, Washington, DC * Wesley University of Science an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LNER Class P1
The London and North Eastern Railway Class P1 Mineral 2-8-2 Mikado was a class of two steam locomotives designed by Nigel Gresley. They were two of the most powerful freight locomotives ever designed for a British railway. It was initially intended they be a more powerful 2-10-0 version of the earlier Class O2 2-8-0s. The design was submitted in August 1923, for use between Peterborough and London, and also between Immingham and Wath marshalling yard. The power was quoted as being 25% more than the O2. Construction and into service The first P1, No 2393, was completed by Doncaster in June 1925 and was shown at the Darlington Centenary celebrations in July, with its sister No 2394 following in November 1925. Both were externally rather similar, although 2393 had a 32-element superheater while 2394 had a larger 62-element 'E' type superheater. They were the first 2-8-2 locomotives to be built in Britain for local use, although not the first designed. Both were allocated to New Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LNER Class A4
The Class A4 is a class of streamlined 4-6-2 steam locomotive designed by Nigel Gresley for the London and North Eastern Railway in 1935. Their streamlined design gave them high-speed capability as well as making them instantly recognisable, and one of the class, 4468 ''Mallard'', holds the world record as the fastest steam locomotive. Thirty-five of the class were built to haul express passenger trains on the East Coast Main Line route from London Kings Cross via York to Newcastle, and later via Newcastle to Edinburgh, Scotland. They remained in service on the East Coast Main Line until the early 1960s when they were replaced by Deltic diesel locomotives; they themselves proving to be worthy successors to the A4s. Several A4s saw out their remaining days until 1966 in Scotland, particularly on the Aberdeen – Glasgow express trains, for which they were used to improve the timing from 3.5 to 3 hours. Overview Gresley introduced the Class A4 locomotives in 1935 to haul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doncaster Works
Doncaster Railway Works is a railway workshop located in Doncaster, England. Also referred to as The Plant''", it was established by the Great Northern Railway in 1853, replacing the previous works in Boston and Peterborough. Until 1867 it undertook only repairs and maintenance. Today the remaining part is operated by Wabtec. History In 1866, Patrick Stirling was appointed as Locomotive Superintendent, and the first of the 875 class was built in 1886. At this time the works also began building new coaches: in 1873 the first sleeping cars; in 1879 the first dining cars in the United Kingdom; and in 1882 the first corridor coaches. In 1891, 99 locomotives, 181 carriages and 1,493 wagons were built. Among the locomotives the works produced were the Stirling Singles, the Ivatt Atlantics and the Gresley Pacifics, including the world-famous '' Flying Scotsman'', the first locomotive to achieve 100 mph and also run from London King's Cross to Edinburgh Waverley non-stop; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
