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RAF Denge
Denge is a former Royal Air Force site near Dungeness, in Kent, England. It is best known for the early experimental acoustic mirrors which remain there. The acoustic mirrors, known colloquially as 'listening ears', at Denge are located between Greatstone-on-Sea and Lydd airfield, on the banks of a now disused gravel pit. The mirrors were built in the late 1920s and early 1930s as an experimental early warning system for incoming aircraft, developed by William Sansome Tucker. Several were built along the south and east coasts, but the complex at Denge is the best preserved, and are protected as scheduled monuments. Denge complex There are three acoustic mirrors in the complex, each consisting of a single concrete hemispherical reflector. *The 200 foot mirror is a near vertical, curved wall, 200 feet (60m) long. It is one of only two similar acoustic mirrors in the world, the other being in Magħtab, Malta. *The 30 foot mirror is a circular dish, similar to a deeply curved sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denge Acoustic Mirrors-10July2005 (2)
Denge may refer to: * Denge Marsh, an area in Kent, England * RAF Denge, a former military site near Dungeness in Kent, England * Denge Wood, a wood near Canterbury in Kent, England * Ayanda Denge, South African trans woman and activist See also * Deng (other) * Dengie Dengie is a village and civil parish in the Maldon district of Essex, England, with a population of 119 at the 2011 census. It gives its name to the Dengie peninsula and hundred and to the Dengie Special Protection Area. The place-name 'Dengi ..., a village in Essex * Dengue fever {{Disambiguation, geo, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denge Acoustic Mirrors -bridge -water-10July2005
Denge may refer to: * Denge Marsh, an area in Kent, England * RAF Denge, a former military site near Dungeness in Kent, England * Denge Wood, a wood near Canterbury in Kent, England * Ayanda Denge, South African trans woman and activist See also * Deng (other) * Dengie Dengie is a village and civil parish in the Maldon district of Essex, England, with a population of 119 at the 2011 census. It gives its name to the Dengie peninsula and hundred and to the Dengie Special Protection Area. The place-name 'Dengi ..., a village in Essex * Dengue fever {{Disambiguation, geo, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Kent
Kent is a traditional county in South East England with long-established human occupation. Prehistoric Kent Kent has been occupied since the Lower Palaeolithic as finds from the quarries at Fordwich and Swanscombe attest. The Swanscombe skull, uncovered at Barnfield Pit, a quarry in Swanscombe, is the oldest skull found in Britain. Identified as '' Homo heidelbergensis'' it dates to the Hoxnian Interglacial 400,000 years ago. The earliest evidence for the human occupation of Kent is found near Canterbury, where stone tools dating to 560,000 years ago have been discovered. During the Neolithic the Medway megaliths were built and there is a rich sequence of Bronze Age occupation indicated by finds and features such as the Ringlemere gold cup. Iron Age Kent The name Kent probably means 'rim' or 'border' (compare the dictionary words cant in English, Kant in German, etc.), regarding the eastern part of the modern county as a 'border land' or 'coastal district.' Historical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warning Systems
Warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger. Its purpose is to enable the deployer of the warning system to prepare for the danger and act accordingly to mitigate or avoid it. Warnings cannot be effective unless people react to them. People are more likely to ignore a system that regularly produces false warnings (the cry-wolf effect), but reducing the number of false warnings generally also increases the risk of not giving a warning when it is needed. Some warnings are non-specific: for instance, the probability of an earthquake of a certain magnitude in a certain area over the next decade. Such warnings cannot be used to guide short-term precautions such as evacuation. Opportunities to take long-term precautions, such as better building codes and disaster preparedness, may be ignored. Biological warning systems *Aposematism (e.g. warning coloration) * Climate canary *Fear * Miner's canary *P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustics
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or for marking territories. Art, craft, science and technology have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Protection Area
A Special Protection Area (SPA) is a designation under the European Union Directive on the Conservation of Wild Birds. Under the Directive, Member States of the European Union (EU) have a duty to safeguard the habitats of migratory birds and certain particularly threatened birds. Together with Special Areas of Conservation (SACs), the SPAs form a network of protected sites across the EU, called Natura 2000. Each SPA has an EU code – for example the North Norfolk Coast SPA has the code ''UK9009031''. In the United Kingdom As at 21 September 2006, there were 252 classified SPAs and 12 proposed SPAs in England, Scotland, Wales and Northern Ireland. The Conservation (Natural Habitats etc.) Regulations 1994 implement the terms of the Directive in Scotland, England and Wales. In Great Britain, SPAs (and SACs) designated on land or in the intertidal area are normally also notified as Sites of Special Scientific Interest (SSSIs), and in Northern Ireland as Areas of Special Scientific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Site Of Special Scientific Interest
A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of Man. SSSI/ASSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in the United Kingdom are based upon them, including national nature reserves, Ramsar sites, Special Protection Areas, and Special Areas of Conservation. The acronym "SSSI" is often pronounced "triple-S I". Selection and conservation Sites notified for their biological interest are known as Biological SSSIs (or ASSIs), and those notified for geological or physiographic interest are Geological SSSIs (or ASSIs). Sites may be divided into management units, with some areas including units that are noted for both biological and geological interest. Biological Biological SSSI/ASSI ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society For The Protection Of Birds
The Royal Society for the Protection of Birds (RSPB) is a charitable organisation registered in England and Wales and in Scotland. It was founded in 1889. It works to promote conservation and protection of birds and the wider environment through public awareness campaigns, petitions and through the operation of nature reserves throughout the United Kingdom. In 2020/21 the RSPB had an income of £117 million, 2,000 employees, 12,000 volunteers and 1.1 million members (including 195,000 youth members), making it one of the world's largest wildlife conservation organisations. The RSPB has many local groups and maintains 222 nature reserves. As founders, chief officers and presidents, women have been at the helm of the RSPB for over 85 years. History The origins of the RSPB lie with two groups of women, both formed in 1889: * The Plumage League was founded by Emily Williamson at her house in Didsbury, Manchester, as a protest group campaigning against the use of great cres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swing Bridge
A swing bridge (or swing span bridge) is a movable bridge that has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the swing span (turning span) can then pivot horizontally as shown in the animated illustration to the right. Small swing bridges as found over canals may be pivoted only at one end, opening as would a gate, but require substantial underground structure to support the pivot. In its closed position, a swing bridge carrying a road or railway over a river or canal, for example, allows traffic to cross. When a water vessel needs to pass the bridge, road traffic is stopped (usually by traffic signals and barriers), and then motors rotate the bridge horizontally about its pivot point. The typical swing bridge will rotate approximately 90 degrees, or one-quarter turn; however, a bridge which intersects the navigation channel at an oblique angle may be built to rotate only 45 degrees, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kent County Council
Kent County Council is a county council that governs most of the county of Kent in England. It is the upper tier of elected local government, below which are 12 district councils, and around 300 town and parish councils. The county council has 81 elected councillors. The chief executive and chief officers are responsible for the day-to-day running of the council. Roger Gough is the leader of the council as of October 2019. Kent County Council is currently controlled by the Conservative Party with 61 seats. The Labour Party have 7 seats. It is one of the largest local authorities in England in terms of population served and the largest local authority of its type.With a population of 1,463,700 at the 2011 census, Kent is the largest non-metropolitan county in a two tier arrangement. In November 2022, the county council stated it, alongside Hampshire County Council, may face bankruptcy within 12 months due to austerity cuts. Responsibilities The council is responsible for p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Heritage
English Heritage (officially the English Heritage Trust) is a charity that manages over 400 historic monuments, buildings and places. These include prehistoric sites, medieval castles, Roman forts and country houses. The charity states that it uses these properties to "bring the story of England to life for over 10 million people each year". Within its portfolio are Stonehenge, Dover Castle, Tintagel Castle and the best preserved parts of Hadrian's Wall. English Heritage also manages the London Blue Plaque scheme, which links influential historical figures to particular buildings. When originally formed in 1983, English Heritage was the operating name of an executive non-departmental public body of the British Government, officially titled the Historic Buildings and Monuments Commission for England, that ran the national system of heritage protection and managed a range of historic properties. It was created to combine the roles of existing bodies that had emerged from a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blank & Jones
Blank & Jones are a German electronic music duo, consisting of the members Jan Pieter Blank (born June 15, 1971), known as Piet Blank; René Runge (born June 27, 1968), better known as DJ Jaspa Jones; and the producer Andy Kaufhold (N*D*K) (born December 17, 1969). They have released twelve albums and more than two dozen singles since their first single release "Sunrise" in 1997. History Piet Blank, who became interested in music after purchasing his first record "Kids in America" by Kim Wilde, had his first experience spinning a record on a turntable at age 16. René Runge, who resides in Düsseldorf and who is better known as Jaspa Jones, had his first experience as a DJ at age 19."Blank_&_Jones_Biography_on_Laut.de" ''laut.de''. Together with help fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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