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Walney Lighthouse
Walney Lighthouse is a functioning lighthouse located on Walney Island in Barrow-in-Furness, Cumbria, England. The current building dates to the early 19th-century and is Grade II* listed as well as being the southernmost man-made structure in Cumbria. Completed in 1804, the stone lighthouse and its attached cottages actually predate Barrow and its port. The structure was built to replace a smaller wooden lighthouse that was constructed by the Lancaster Quay Commissioners in 1790 to aid in navigation towards the docks at Glasson close to Lancaster and the River Lune. It contained three reflectors mounted on a slowly-revolving shaft; the reflectors consisted of a concave wooden frame covered with small pieces of mirrored glass. The original lighthouse was destroyed by fire in 1803 and was swiftly replaced by the lighthouse of today. The lighthouse was designed by engineer E. Dawson. The optical system (as renewed in 1846) was a clockwork-driven rotating array of four Argand lam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walney Island
Walney Island, also known as the Isle of Walney, is an island off the west coast of England, at the western end of Morecambe Bay in the Irish Sea. It is part of Barrow-in-Furness, separated from the mainland by Walney Channel, which is spanned by the Jubilee Bridge. Walney is the largest island of the Furness Islands group, both in population and size, as well as the largest English island in the Irish Sea. Its population at the 2011 UK Census was 10,651, distributed evenly across the island's two Wards of Walney North and Walney South. Walney Island formed during the last glacial period, when the River Duddon was a large glacial lake, depositing till at its mouth, which became Walney. Some evidence of neolithic inhabitants has been found in the island's sand dunes, though its name is likely of Norse origin.Walney Island His ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concave Mirror
A curved mirror is a mirror with a curved reflecting surface. The surface may be either ''convex'' (bulging outward) or ''concave'' (recessed inward). Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices. The most common non-spherical type are parabolic reflectors, found in optical devices such as reflecting telescopes that need to image distant objects, since spherical mirror systems, like spherical lenses, suffer from spherical aberration. Distorting mirrors are used for entertainment. They have convex and concave regions that produce deliberately distorted images. They also provide highly magnified or highly diminished (smaller) images when the object is placed at certain distances. Convex mirrors A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. Convex mirrors reflect light outwards, therefore they are not used to focus light. Su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade II* Listed Lighthouses
Grade most commonly refers to: * Grade (education), a measurement of a student's performance * Grade, the number of the year a student has reached in a given educational stage * Grade (slope), the steepness of a slope Grade or grading may also refer to: Music * Grade (music), a formally assessed level of profiency in a musical instrument * Grade (band), punk rock band * Grades (producer), British electronic dance music producer and DJ Science and technology Biology and medicine * Grading (tumors), a measure of the aggressiveness of a tumor in medicine * The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach * Evolutionary grade, a paraphyletic group of organisms Geology * Graded bedding, a description of the variation in grain size through a bed in a sedimentary rock * Metamorphic grade, an indicatation of the degree of metamorphism of rocks * Ore grade, a measure that describes the concentration of a valuable natural material in the surroundi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade II* Listed Buildings In Cumbria
The county of Cumbria is divided into six districts. The districts of Cumbria are Borough of Barrow-in-Furness, District of South Lakeland, Borough of Copeland, Borough of Allerdale, District of Eden, City of Carlisle. As there are 460 Grade II* listed buildings in the county they have been split into separate lists for each district. * Grade II* listed buildings in Allerdale * Grade II* listed buildings in Barrow-in-Furness (borough) * Grade II* listed buildings in the City of Carlisle * Grade II* listed buildings in Copeland * Grade II* listed buildings in Eden * Grade II* listed buildings in South Lakeland See also * Grade I listed buildings in Cumbria There are over 9000 Grade I listed buildings in England. This page is a list of these buildings in the county of Cumbria, sub-divided by district. Allerdale Barrow-in-Furness Carlisle ... * :Grade II* listed buildings in Cumbria References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Barrow-in-Furness
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lighthouses In England
This is a list of lighthouses in England. It includes lighthouses which are no longer in use as a light but are still standing. It also includes some of the harbour and pier-head lights around the country. Details of several lighthouses and lightvessels in current use in England, together with Wales, the Channel Islands and Gibraltar can be found on the website of Trinity House. Locations of major lighthouses are shown on the adjacent map. __TOC__ Active lighthouses Inactive lighthouses See also *Lists of lighthouses *List of lighthouses in Wales *List of lighthouses in Scotland *List of lighthouses in the Isle of Man *List of lighthouses in Ireland *List of lighthouses in the Channel Islands Notes References External links * see Lighthouses of the British IsleslighthousesRus.org (England Page)* {{Architecture of England England Lighthouses Lighthouses A lighthouse is a tower, building, or other type of physical structure designed to emit light from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listed Buildings In Barrow-in-Furness
There are 274 listed buildings in the Borough of Barrow-in-Furness, with about 70% in Barrow-in-Furness itself. The 2015 Heritage Index formed by the Royal Society of Arts and the Heritage Lottery Fund placed the Borough as seventh highest of 325 English districts with an especially high score relating to industrial heritage assets. The Barrow Island conservation area contains dozens of historic shipyard buildings and tenements, while numerous listed buildings can be found lining Abbey Road and Duke Street, which were designed as the principal north to south and east to west thoroughfares of the Victorian planned town. Despite many buildings and structures dating from this era, an abundance of listed buildings exist throughout the Borough that pre-date Barrow, in villages that were consumed by the rapidly expanding town. One notable example being Newbarns village which retains its original 18th century street layout. Significant clusters of listed buildings can be found around t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catoptric
Catoptrics (from grc-gre, κατοπτρικός ''katoptrikós'', "specular", from grc-gre, κάτοπτρον ''katoptron'' "mirror") deals with the phenomena of reflected light and image-forming optical systems using mirrors. A catoptric system is also called a ''catopter'' (''catoptre''). Ancient texts ''Catoptrics'' is the title of two texts from ancient Greece: *The Pseudo-Euclidean ''Catoptrics''. This book is attributed to Euclid, although the contents are a mixture of work dating from Euclid's time together with work which dates to the Roman period., accessed 31 January 2013 It has been argued that the book may have been compiled by the 4th century mathematician Theon of Alexandria. The book covers the mathematical theory of mirrors, particularly the images formed by plane and spherical concave mirrors. *Hero's ''Catoptrics''. Written by Hero of Alexandria, this work concerns the practical application of mirrors for visual effects. In the Middle Ages, this work was fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parabolic Reflectors
A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave travelling along the axis into a spherical wave converging toward the focus. Conversely, a spherical wave generated by a point source placed in the focus is reflected into a plane wave propagating as a collimated beam along the axis. Parabolic reflectors are used to collect energy from a distant source (for example sound waves or incoming star light). Since the principles of reflection are reversible, parabolic reflectors can also be used to collimate radiation from an isotropic source into a parallel beam. In optics, parabolic mirrors are used to gather light in reflecting telescopes and solar furnaces, and project a beam of light in flashl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argand Lamp
The Argand lamp is a type of oil lamp invented in 1780 by Aimé Argand. Its output is 6 to 10 candelas, brighter than that of earlier lamps. Its more complete combustion of the candle wick and oil than in other lamps required much less frequent trimming of the wick. In France, the lamp is called "Quinquet", after Antoine-Arnoult Quinquet, a pharmacist in Paris, who used the idea originated by Argand and popularized it in France. Quinquet sometimes is credited with the addition of the glass chimney to the lamp. Design The Argand lamp had a sleeve-shaped wick mounted so that air can pass both through the center of the wick and also around the outside of the wick before being drawn into a cylindrical chimney which steadies the flame and improves the flow of air. Early models used ground glass which was sometimes tinted around the wick. An Argand lamp used whale oil, seal oil, colza, olive oil or other vegetable oil as fuel which was supplied by a gravity feed from a reservoir mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Lune
The River Lune (archaically sometimes Loyne) is a river in length in Cumbria and Lancashire, England. Etymology Several elucidations for the origin of the name ''Lune'' exist. Firstly, it may be that the name is Brittonic in genesis and derived from ''*lǭn'' meaning "full, abundant", or "healthy, pure" (c.f. Old Irish ''slán'', Welsh ''llawn''). Secondly, ''Lune'' may represent Old English ''Ēa Lōn'' (''ēa'' = "river") as a phonetic adaptation of a Romano-British name referring to a Romano-British god Ialonus who was worshipped in the area. Springs The river begins as a stream at Newbiggin, in the parish of Ravenstonedale, Cumbria, at St. Helen's Well (elevation of above sea level) and some neighbouring springs. On the first two miles of its course, it is joined by four streams, two of them as short as itself, but two much longer. These are the Bessy Beck (short), the Dry Beck of 4.9 kilometres' (three miles) length at from St. Helen's Well, the Sandwath Beck (s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumbria
Cumbria ( ) is a ceremonial and non-metropolitan county in North West England, bordering Scotland. The county and Cumbria County Council, its local government, came into existence in 1974 after the passage of the Local Government Act 1972. Cumbria's county town is Carlisle, in the north of the county. Other major settlements include Barrow-in-Furness, Kendal, Whitehaven and Workington. The administrative county of Cumbria consists of six districts ( Allerdale, Barrow-in-Furness, Carlisle, Copeland, Eden and South Lakeland) and, in 2019, had a population of 500,012. Cumbria is one of the most sparsely populated counties in England, with 73.4 people per km2 (190/sq mi). On 1 April 2023, the administrative county of Cumbria will be abolished and replaced with two new unitary authorities: Westmorland and Furness (Barrow-in-Furness, Eden, South Lakeland) and Cumberland ( Allerdale, Carlisle, Copeland). Cumbria is the third largest ceremonial county in England by area. It i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
