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Principal Triangulation Of Great Britain
The Principal Triangulation of Britain was the first high-precision triangulation survey of the whole of Great Britain and Ireland, carried out between 1791 and 1853 under the auspices of the Board of Ordnance. The aim of the survey was to establish precise geographical coordinates of almost 300 significant landmarks which could be used as the fixed points of local topographic surveys from which maps could be drawn. In addition there was a purely scientific aim in providing precise data for geodetic calculations such as the determination of the length of meridian arcs and the figure of the Earth. Such a survey had been proposed by William Roy (1726–1790) on his completion of the Anglo-French Survey but it was only after his death that the Board of Ordnance initiated the trigonometric survey, motivated by military considerations in a time of a threatened French invasion. Most of the work was carried out under the direction of Isaac Dalby, William Mudge and Thomas Freder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarke Principal Triangulation Of Britain 1860
Clarke is a surname which means "clerk". The surname is of English and Irish origin and comes from the Latin . Variants include Clerk and Clark. Clarke is also uncommonly chosen as a given name. Irish surname origin Clarke is a common surname in Ireland. The Irish version of the surname is believed to have come from County Galway and County Antrim and spread to County Donegal and County Dublin. The name is derived from the Irish Gaelic sept , meaning "clerk". English surname origin Clarke, as well as Clark, is also a widespread surname in England. The English version is of Anglo-Saxon origin and was used in the Middle Ages for the name of a scribe or secretary. The word "clerc", which came from the pre-7th century Old English (meaning priest), originally denoted a member of a religious order, but later became widespread. In the Middle Ages, virtually the only people who could read and write were members of religious orders, linking the word with literacy. Thus the surname b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scottish Highlands
The Highlands (; , ) is a historical region of Scotland. Culturally, the Highlands and the Scottish Lowlands, Lowlands diverged from the Late Middle Ages into the modern period, when Scots language, Lowland Scots language replaced Scottish Gaelic throughout most of the Lowlands. The term is also used for the area north and west of the Highland Boundary Fault, although the exact boundaries are not clearly defined, particularly to the east. The Great Glen divides the Grampian Mountains to the southeast from the Northwest Highlands. The Scottish Gaelic name of ' literally means "the place of the Gaels" and traditionally, from a Gaelic-speaking point of view, includes both the Western Isles and the Highlands. The area is very sparsely populated, with many mountain ranges dominating the region, and includes the highest mountain in the British Isles, Ben Nevis. During the 18th and early 19th centuries the population of the Highlands rose to around 300,000, but from c. 1841 and for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance Survey
The Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose (see Artillery, ordnance and surveying), which was to map Scotland in the wake of the Jacobite rising of 1745. There was also a more general and nationwide need in light of the potential threat of invasion during the Napoleonic Wars. Since 1 April 2015, the Ordnance Survey has operated as Ordnance Survey Ltd, a state-owned enterprise, government-owned company, 100% in public ownership. The Ordnance Survey Board remains accountable to the Secretary of State for Science, Innovation and Technology. It was also a member of the Public Data Group. Paper maps represent only 5% of the company's annual revenue. It produces digital map data, online route planning and sharing services and mobile apps, plus many other location-based products for business, government and consumers. Ordnance Survey mapping is usually classified as either "Scale (map), lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jesse Ramsden
Jesse Ramsden Fellow of the Royal Society, FRS FRSE (6 October 1735 – 5 November 1800) was a British mathematician, astronomy, astronomical and scientific instrument maker. His reputation was built on the engraving and design of dividing engines which allowed high accuracy measurements of angles and lengths in instruments. He produced instruments for astronomy that were especially well known for maritime use where they were needed for the measurement of latitudes and for his surveying instruments which were widely used for cartography and land survey both across the British Empire and outside. An achromatic eyepiece that he invented for telescopes and microscopes continues to be known as the Ramsden eyepiece. Life Ramsden was born at Salterhebble, Halifax, West Yorkshire, Halifax, West Riding of Yorkshire, England the son of Thomas Ramsden, an innkeeper and his wife Abigail née Flather. Having attended the free school at Halifax from 1744 to 1747, he was sent at the age of twe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hounslow Heath
Hounslow Heath is a local nature reserve in the London Borough of Hounslow and at a point borders London Borough of Richmond upon Thames, Richmond upon Thames. The public open space, which covers , is all that remains of the historic Hounslow Heath which covered more than . The present day area is bounded by A315 Staines Road, A3063 Wellington Road South, A314 Hanworth Road, and the River Crane, London, River Crane. History The heathland of Hounslow Heath originally covered an area underlain by Taplow gravel that now includes parts of Bedfont, Brentford, Cranford, London, Cranford, Feltham, Hampton, London, Hampton, Fulwell, London, Fulwell, Hanworth, Harlington, London, Harlington, Harmondsworth, Heston, Hounslow, Isleworth, Stanwell, Teddington, Twickenham, and Heathrow (hamlet), Heathrow. Hounslow Heath has had major historical importance, originally crossed by main routes from London to the west and southwest of Britain. Staines Road, the northern boundary of the present he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hampton, London
Hampton is a suburb of Greater London on the north bank of the River Thames, in the London Borough of Richmond upon Thames, England, and the historic county of Middlesex. Hampton is bounded by Bushy Park to the east (and to the north of St Albans Riverside facing Tagg's Island), the suburbs of Hampton Hill and Fulwell, London, Fulwell to the north, Metropolitan Green Belt, green belt to the west, and the Thames to the south. Historically, the Manorialism, manor of Hampton included Hampton Court Palace (and Bushy Park), Hampton Hill, and Hampton Wick (which are now known collectively as "The Hamptons"). Originally settled in History of Anglo-Saxon England, Saxon times, the manor was awarded to the Norman lord Walter of Saint-Valéry following the 1066 Norman Conquest, passed by his heirs to the Knights Hospitaller, Order of Knights of the Hospital of Saint John of Jerusalem in 1237, and acquired by Henry VIII following the Act of Supremacy 1534 (26 Hen. 8. c. 1). The enclosure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baseline (surveying)
In surveying, a baseline is generally a line between two points on the Earth's surface and the direction and/or distance between them. In a triangulation network, at least one distance between two stations needs to be measured to calculate the size of the triangles by trigonometry. In relative Global Navigation Satellite System (GNSS) surveying, a baseline is the line between two GNSS receivers to determine the 3D coordinate difference. United States In the United States Public Land Survey System, a baseline is specifically the principal east-west line (i.e., a parallel) upon which all rectangular surveys in a defined area are based. The baseline meets its corresponding principal meridian (north-south line) at the point of origin, or '' initial point'', for the land survey. For example, the baseline for Nebraska and Kansas is shared as the border for both states, at the 40th parallel north. More specifically a baseline may be the line that divides a survey township ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Geographical Journal
''The Geographical Journal'' is a quarterly peer-reviewed academic journal of the Royal Geographical Society (with the Institute of British Geographers). It publishes papers covering research on all aspects of geography. It also publishes shorter Commentary papers and Review Essays. Since 2001, ''The Geographical Journal'' has been published in collaboration with Wiley-Blackwell. The journal dates back to two related publications established in the 19th century, ''Journal of the Royal Geographical Society of London'' (published from 1831 to 1880), and ''Proceedings of the Royal Geographical Society of London '', published from 1857 to 1877. Then ''Proceedings of the Royal Geographical Society and Monthly Record of Geography'', published from 1879 to 1892, continued and absorbed the previous journals. In 1893, the journal renamed itself ''The Geographical Journal''. Prior to 2000, ''The Geographical Journal'' published society news alongside articles and it continues to publish the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society
The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, recognising excellence in science, supporting outstanding science, providing scientific advice for policy, education and public engagement and fostering international and global co-operation. Founded on 28 November 1660, it was granted a royal charter by Charles II of England, King Charles II and is the oldest continuously existing scientific academy in the world. The society is governed by its Council, which is chaired by the society's president, according to a set of statutes and standing orders. The members of Council and the president are elected from and by its Fellows, the basic members of the society, who are themselves elected by existing Fellows. , there are about 1,700 fellows, allowed to use the postnominal title FRS (Fellow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris Observatory
The Paris Observatory (, ), a research institution of the Paris Sciences et Lettres University, is the foremost astronomical observatory of France, and one of the largest astronomical centres in the world. Its historic building is on the Left Bank of the Seine in central Paris, but most of the staff work on a satellite campus in Meudon, a suburb southwest of Paris. The Paris Observatory was founded in 1667. Construction was completed by the early 1670s and coincided with a major push for increased science, and the founding of the Royal Academy of Sciences. King Louis XIV's minister of finance organized a "scientific powerhouse" to increase understanding of astronomy, maritime navigation, and science in general. Through the centuries the Paris Observatory has continued in support of astronomical activities, and in the 21st century connects multiple sites and organizations, supporting astronomy and science, past and present. Constitution Administratively, it is a '' grand étab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Observatory, Greenwich
The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park in south east London, overlooking the River Thames to the north. It played a major role in the history of astronomy and navigation, and because the Prime meridian (Greenwich), Prime Meridian passed through it, it gave its name to Greenwich Mean Time, the precursor to today's Coordinated Universal Time (UTC). The ROG has the IAU observatory code of 000, the first in the list. ROG, the National Maritime Museum, the Queen's House and the clipper ship ''Cutty Sark'' are collectively designated Royal Museums Greenwich. The observatory was commissioned in 1675 by Charles II of England, King Charles II, with the foundation stone being laid on 10 August. The old hilltop site of Greenwich Castle was chosen by Sir Christopher Wren, a for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
