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LORAN-A Transmitters
LORAN (Long Range Navigation) was a hyperbolic radio navigation system developed in the United States during World War II. It was similar to the UK's Gee system but operated at lower frequencies in order to provide an improved range up to with an accuracy of tens of miles. It was first used for ship convoys crossing the Atlantic Ocean, and then by long-range patrol aircraft, but found its main use on the ships and aircraft operating in the Pacific theater during World War II. LORAN, in its original form, was an expensive system to implement, requiring a cathode ray tube (CRT) display and a well trained operator. This limited use to the military and large commercial users. Automated receivers became available in the 1950s, but the same improved electronics also opened the possibility of new systems with higher accuracy. The U.S. Navy began development of Loran-B, which offered accuracy on the order of a few tens of feet, but ran into significant technical problems. The U.S. Air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LORAN AN-APN-4 Receiver Set
LORAN (Long Range Navigation) was a hyperbolic navigation, hyperbolic radio navigation system developed in the United States during World War II. It was similar to the UK's Gee (navigation), Gee system but operated at lower frequencies in order to provide an improved range up to with an accuracy of tens of miles. It was first used for ship convoys crossing the Atlantic Ocean, and then by long-range patrol aircraft, but found its main use on the ships and aircraft operating in the Pacific theater during World War II. LORAN, in its original form, was an expensive system to implement, requiring a cathode ray tube (CRT) display and a well trained operator. This limited use to the military and large commercial users. Automated receivers became available in the 1950s, but the same improved electronics also opened the possibility of new systems with higher accuracy. The U.S. Navy began development of Loran-B, which offered accuracy on the order of a few tens of feet, but ran into signi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AI Mk
AI most frequently refers to artificial intelligence, which is intelligence demonstrated by machines. Ai, AI or A.I. may also refer to: Animals * Ai (chimpanzee), an individual experimental subject in Japan * Ai (sloth) or the pale-throated sloth, a northern Amazonian mammal species Arts, entertainment and media Works * Ai (album), ''Ai'' (album), a 2004 release by Seraphim * A.I. (song), "A.I." (song), by OneRepublic, 2016 * ''A.I. Artificial Intelligence'', a 2001 American film * ''A.I. Rising'', a 2018 Serbian film * ''AI: The Somnium Files'', a 2019 video game * ''American Idol'', a televised singing contest * ''The American Interest'', a bimonthly magazine (2005–2020) * I (2015 film), ''I'' (2015 film), an Indian Tamil film (initial title: ''Ai'') Other uses in arts and media * A.i. (band), a Californian rock–electroclash group * All in (poker), wagering one's entire stake * Appreciation Index, a British measure of broadcast programme approval * Non-player character, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller islands. It has a total area of , making it the list of countries and dependencies by area, sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and Climate of Australia, climates including deserts of Australia, deserts in the Outback, interior and forests of Australia, tropical rainforests along the Eastern states of Australia, coast. The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the Last Glacial Period, last glacial period. By the time of British settlement, Aboriginal Australians spoke 250 distinct l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Transport Command
RAF Transport Command was a Royal Air Force command that controlled all transport aircraft of the RAF. It was established on 25 March 1943 by the renaming of the RAF Ferry Command, and was subsequently renamed RAF Air Support Command in 1967. History Second World War During the Second World War, it at first ferried aircraft from factories to operational units and performed air transport. Later it took over the job of dropping paratroops from Army Cooperation Command as well. Transport Command was the only RAF command in to which aircrew originating in the Caribbean were not posted due to the fact that they might be required to fly to the United States where racial discrimination was legally entrenched at the time. In June 1944 the Command was made up of No. 38 Group RAF; No. 44 Group RAF; No. 45 Group RAF; No. 46 Group RAF; No. 216 Group RAF; No. 229 Group RAF; No. 114 Wing RAF, and No. 116 Wing RAF at RAF Hendon. No. 44 Group RAF - HQ at Gloucester * "In the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications Research Establishment
The Telecommunications Research Establishment (TRE) was the main United Kingdom research and development organisation for radio navigation, radar, infra-red detection for heat seeking missiles, and related work for the Royal Air Force (RAF) during World War II and the years that followed. It was regarded as "the most brilliant and successful of the English wartime research establishments" under "Rowe, who saw more of the English scientific choices between 1935 and 1945 than any single man." The name was changed to Radar Research Establishment in 1953, and again to the Royal Radar Establishment in 1957. This article covers the precursor organizations and the Telecommunications Research Establishment up to the time of the name change. The later work at the site is described in the separate article about RRE. History TRE is best known for work on defensive and offensive radar. TRE also made substantial contributions to radio-navigation and to jamming enemy radio-navigation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Dippy
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of '' Hruod'' () "fame, glory, honour, praise, renown, godlike" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin.Reaney & Wilson, 1997. ''Dictionary of English Surnames''. Oxford University Press. It is also in use as a surname. Another commonly used form of the name is Rupert. After becoming widely used in Continental Europe, the name entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta. The Italian, Portuguese, and Spanish form is Roberto. Robert is also a common name in many Germanic languages, including Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionosphere
The ionosphere () is the ionized part of the upper atmosphere of Earth, from about to above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays an important role in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical importance because, among other functions, it influences radio propagation to distant places on Earth. Travel through this layer also impacts GPS signals, resulting in effects such as deflection in their path and delay in the arrival of the signal. History of discovery As early as 1839, the German mathematician and physicist Carl Friedrich Gauss postulated that an electrically conducting region of the atmosphere could account for observed variations of Earth's magnetic field. Sixty years later, Guglielmo Marconi received the first trans-Atlantic radio signal on December 12, 1901, in St. John's, Newfoundland (now in Canada) usin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LORAN R-65 APN-9
LORAN (Long Range Navigation) was a hyperbolic radio navigation system developed in the United States during World War II. It was similar to the UK's Gee system but operated at lower frequencies in order to provide an improved range up to with an accuracy of tens of miles. It was first used for ship convoys crossing the Atlantic Ocean, and then by long-range patrol aircraft, but found its main use on the ships and aircraft operating in the Pacific theater during World War II. LORAN, in its original form, was an expensive system to implement, requiring a cathode ray tube (CRT) display and a well trained operator. This limited use to the military and large commercial users. Automated receivers became available in the 1950s, but the same improved electronics also opened the possibility of new systems with higher accuracy. The U.S. Navy began development of Loran-B, which offered accuracy on the order of a few tens of feet, but ran into significant technical problems. The U.S. Air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
J-scope
A radar display is an electronic device that presents radar data to the operator. The radar system transmits pulses or continuous waves of electromagnetic radiation, a small portion of which backscatter off targets (intended or otherwise) and return to the radar system. The receiver converts all received electromagnetic radiation into a continuous electronic analog signal of varying (or oscillating) voltage that can be converted then to a screen display. Modern systems typically use some sort of raster scan display to produce a map-like image. Early in radar development, however, numerous circumstances made such displays difficult to produce. People developed several different display types. Oscilloscopes Early radar displays used adapted oscilloscopes with various inputs. An oscilloscope generally receives three ''channels'' of varying (or oscillating) voltage as input and displays this information on a cathode ray tube. The oscilloscope amplifies the input voltages and sends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springfield, Missouri
Springfield is the List of cities in Missouri, third most populous city in the U.S. state of Missouri and the county seat of Greene County, Missouri, Greene County. The city's population was 169,176 at the 2020 United States census, 2020 census. It is the principal city of the Springfield metropolitan area, Missouri, Springfield metropolitan area, which had an estimated population of 487,061 in 2022 and includes the counties of Christian County, Missouri, Christian, Dallas County, Missouri, Dallas, Greene County, Missouri, Greene, Polk County, Missouri, Polk, and Webster County, Missouri, Webster, The city sits on the Springfield Plateau of the Ozarks, which ranges from nearly level to rolling hills. Springfield is the largest city in the Ozarks. Springfield's nicknames include "Queen City of the Ozarks" and "The Birthplace of U.S. Route 66, Route 66". The city has been called the "Buckle of the Bible Belt" due to its association with evangelical Christianity. The city is the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Station Wagon
A station wagon (American English, US, also wagon) or estate car (British English, UK, also estate) is an automotive Car body style, body-style variant of a Sedan (automobile), sedan with its roof extended rearward over a shared passenger/cargo volume with access at the back via a third or fifth door (the liftgate, or Trunk (automobile)#Tailgate, tailgate), instead of a trunk/boot lid. The body style transforms a standard Three-box styling, three-box design into a Three-box styling#One-box and Two-Box design, two-box design—to include an Pillar (car), A, B, and C-pillar, as well as a D-pillar. Station wagons can flexibly reconfigure their interior volume via fold-down rear seats to prioritize either passenger or cargo volume. The ''American Heritage Dictionary'' defines a station wagon as "an automobile with one or more rows of folding or removable seats behind the driver and no luggage compartment but an area behind the seats into which suitcases, parcels, etc., can be loaded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
