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PARCS (radar)
The AN/FPQ-16 Perimeter Acquisition Radar Attack Characterization System (PARCS or EPARCS) is a powerful United States Space Force phased-array radar system located in North Dakota. It is the second most powerful phased array radar system in the US Space Force's fleet of missile warning and space surveillance systems. PARCS was built by General Electric as the Perimeter Acquisition Radar (PAR), part of the US Army's Safeguard Program anti-ballistic missile system. PAR provided early warning of incoming ICBMs at ranges up to , feeding data to the interceptor station, equipped with a shorter-range radar. The PAR and other systems were collectively known as the Stanley R. Mickelsen Safeguard Complex. With the signing of the ABM Treaty in 1972, the U.S. was limited to a single ABM base protecting missile fields, and a second partially completed PAR in Montana was abandoned in-place. In 1975 the House Appropriations Committee voted to close Mickelsen and shut down Safeguard, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Missile Range
The Eastern Range (ER) is an American rocket range (Spaceport) that supports missile and rocket launches from the two major launch heads located at Cape Canaveral Space Force Station and the Kennedy Space Center (KSC), Florida. The range has also supported Ariane launches from the Guiana Space Centre as well as launches from the Wallops Flight Facility and other lead ranges. The range also uses instrumentation operated by NASA at Wallops and KSC. The range can support launches between 37° and 114° azimuth. The headquarters of the range is now the 45th Space Wing at Patrick Space Force Base. History The history of the Eastern Range began on 18 October 1940, with the activation of the Banana River Naval Air Station which supported antisubmarine sea-patrol planes during World War II. The station was deactivated and put into a caretaker status on 1 September 1947. Launches of captured German V-2 rockets had been ongoing since the end of World War II at White Sands ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strategic Air Command
Strategic Air Command (SAC) was both a United States Department of Defense Specified Command and a United States Air Force (USAF) Major Command responsible for command and control of the strategic bomber and intercontinental ballistic missile components of the United States military's strategic nuclear forces from 1946 to 1992. SAC was also responsible for the operation of strategic reconnaissance aircraft and airborne command post aircraft as well as most of the USAF's aerial refueling fleet, including aircraft from the Air Force Reserve (AFRES) and Air National Guard (ANG). SAC primarily consisted of the Second Air Force (2AF), Eighth Air Force (8AF) and the Fifteenth Air Force (15AF), while SAC headquarters (HQ SAC) included Directorates for Operations & Plans, Intelligence, Command & Control, Maintenance, Training, Communications, and Personnel. At a lower echelon, SAC headquarters divisions included Aircraft Engineering, Missile Concept, and Strategic Communicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheyenne Mountain Complex
The Cheyenne Mountain Complex is a Space Force installation and defensive bunker located in unincorporated El Paso County, Colorado, next to the city of Colorado Springs, at the Cheyenne Mountain Space Force Station, which hosts the activities of several tenant units. Also located in Colorado Springs is Peterson Space Force Base, where the North American Aerospace Defense Command (NORAD) and United States Northern Command (USNORTHCOM) headquarters are located. Formerly the center for the United States Space Command and NORAD, the Complex monitored the air space of Canada and the United States for missiles, space systems, and foreign aircraft through its worldwide early-warning system. Since 2008, NORAD and the United States Space Command have been based at Peterson Space Force Base and the complex, re-designated as an Air Force station, is used for crew training and as a back-up command center if required. The military complex has included, in the past, many units of NORAD, U.S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congressional Record
The ''Congressional Record'' is the official record of the proceedings and debates of the United States Congress, published by the United States Government Publishing Office and issued when Congress is in session. The Congressional Record Index is updated daily online and published monthly. At the end of a session of Congress, the daily editions are compiled in bound volumes constituting the permanent editionChapter 9 of Title 44 of the United States Codeauthorizes publication of the ''Congressional Record''. The ''Congressional Record'' consists of four sections: the House section, the Senate section, the Extensions of Remarks, and, since the 1940s, the Daily Digest. At the back of each daily issue is the Daily Digest, which summarizes the day's floor and committee activities and serves as a table of contents for each issue. The House and Senate sections contain proceedings for the separate chambers of Congress. A section of the ''Congressional Record'' titled ''Extensions of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cooper Bessemer
Cooper-Bessemer refers to the Cooper-Bessemer Corporation and the Cooper-Bessemer brand of industrial engines and compressors, manufactured in Mount Vernon, Ohio. The Cooper-Bessemer Corporation was formed when C. & G. Cooper (founded in 1833) and the Bessemer Gas Engine Company (founded in 1899) merged in 1929. In 1965, the company was renamed to Cooper Industries and relocated to Houston, Texas. In the 1990s, Cooper Industries' Petroleum and Industrial Equipment Group was spun off to become Cooper Cameron Corporation, known as the Compression Systems group of Cameron International Corporation. Cooper Machinery Services is the current original equipment manufacturer for Cooper-Bessemer engines. Products Engines In 1929, Cooper-Bessemer products included gas engine-driven compressors, stationary and marine diesel engines and gas engines. During World War II, Cooper-Bessemer contributed heavily to the war effort by manufacturing diesel engines for troop and cargo ships as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dual-fuel
A flexible-fuel vehicle (FFV) or dual-fuel vehicle (colloquially called a flex-fuel vehicle) is an alternative fuel vehicle with an internal combustion engine designed to run on more than one fuel, usually gasoline blended with either ethanol or methanol fuel, and both fuels are stored in the same common tank. Modern flex-fuel engines are capable of burning any proportion of the resulting blend in the combustion chamber as fuel injection and spark timing are adjusted automatically according to the actual blend detected by a fuel composition sensor. Flex-fuel vehicles are distinguished from bi-fuel vehicles, where two fuels are stored in separate tanks and the engine runs on one fuel at a time, for example, compressed natural gas (CNG), liquefied petroleum gas (LPG), or hydrogen. The most common commercially available FFV in the world market is the ethanol flexible-fuel vehicle, with about 60 million automobiles, motorcycles and light duty trucks manufactured and sold wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Library Of Congress
The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the ''de facto'' national library of the United States. It is the oldest federal cultural institution in the country. The library is housed in three buildings on Capitol Hill in Washington, D.C.; it also maintains a conservation center in Culpeper, Virginia. The library's functions are overseen by the Librarian of Congress, and its buildings are maintained by the Architect of the Capitol. The Library of Congress is one of the largest libraries in the world. Its "collections are universal, not limited by subject, format, or national boundary, and include research materials from all parts of the world and in more than 470 languages." Congress moved to Washington, D.C., in 1800 after holding sessions for eleven years in the temporary national capitals in New York City and Philadelphia. In both cities, members of the U.S. Congress had access to the sizable collection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hudson Bay
Hudson Bay ( crj, text=ᐐᓂᐯᒄ, translit=Wînipekw; crl, text=ᐐᓂᐹᒄ, translit=Wînipâkw; iu, text=ᑲᖏᖅᓱᐊᓗᒃ ᐃᓗᐊ, translit=Kangiqsualuk ilua or iu, text=ᑕᓯᐅᔭᕐᔪᐊᖅ, translit=Tasiujarjuaq; french: baie d'Hudson), sometimes called Hudson's Bay (usually historically), is a large body of saltwater in northeastern Canada with a surface area of . It is located north of Ontario, west of Quebec, northeast of Manitoba and southeast of Nunavut, but politically entirely part of Nunavut. Although not geographically apparent, it is for climatic reasons considered to be a marginal sea of the Arctic Ocean. It Hudson Bay drainage basin, drains a very large area, about , that includes parts of southeastern Nunavut, Alberta, Saskatchewan, Ontario, Quebec, all of Manitoba, and parts of the U.S. states of North Dakota, South Dakota, Minnesota, and Montana. Hudson Bay's southern arm is called James Bay. The Cree language, Eastern Cree name for Hudson an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine-launched Ballistic Missile
A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which carries a nuclear warhead and allows a single launched missile to strike several targets. Submarine-launched ballistic missiles operate in a different way from submarine-launched cruise missiles. Modern submarine-launched ballistic missiles are closely related to intercontinental ballistic missiles (ICBMs), with ranges of over , and in many cases SLBMs and ICBMs may be part of the same family of weapons. History Origins The first practical design of a submarine-based launch platform was developed by the Germans near the end of World War II involving a launch tube which contained a V-2 ballistic missile variant and was towed behind a submarine, known by the code-name ''Prüfstand XII''. The war ended before it could be tested, but the engineers who had worked o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basketball (ball)
A basketball is a spherical ball used in basketball games. Basketballs usually range in size from very small promotional items that are only a few inches (some centimeters) in diameter to extra large balls nearly in diameter used in training exercises. For example, a youth basketball could be in circumference, while a National Collegiate Athletic Association (NCAA) men's ball would be a maximum of and an NCAA women's ball would be a maximum of . The standard for a basketball in the National Basketball Association (NBA) is in circumference and for the Women's National Basketball Association (WNBA), a maximum circumference of . High school and junior leagues normally use NCAA, NBA or WNBA sized balls. Aside from the court and the baskets, the basketball is the only piece of equipment necessary to play the game of basketball. During the game, the ball must be bounced continuously (dribbling), thrown through the air to other players ( passing) or thrown towards the basket (shooti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perimeter Acquisition Radar Characterization System
A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference. Calculating the perimeter has several practical applications. A calculated perimeter is the length of fence required to surround a yard or garden. The perimeter of a wheel/circle (its circumference) describes how far it will roll in one revolution. Similarly, the amount of string wound around a spool is related to the spool's perimeter; if the length of the string was exact, it would equal the perimeter. Formulas The perimeter is the distance around a shape. Perimeters for more general shapes can be calculated, as any path, with \int_0^L \mathrms, where L is the length of the path and ds is an infinitesimal line element. Both of these must be replaced by algebraic forms in order to be practically calculated. If the perimeter is given as a closed piecewise smooth plane curve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
