1.
San Diego
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San Diego is a major city in California, United States. It is in San Diego County, on the coast of the Pacific Ocean in Southern California, approximately 120 miles south of Los Angeles and immediately adjacent to the border with Mexico. With an estimated population of 1,394,928 as of July 1,2015, San Diego is the eighth-largest city in the United States and second-largest in California. It is part of the San Diego–Tijuana conurbation, the second-largest transborder agglomeration between the US and a country after Detroit–Windsor, with a population of 4,922,723 people. San Diego has been called the birthplace of California, historically home to the Kumeyaay people, San Diego was the first site visited by Europeans on what is now the West Coast of the United States. Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for Spain, the Presidio and Mission San Diego de Alcalá, founded in 1769, formed the first European settlement in what is now California. In 1821, San Diego became part of the newly independent Mexico, in 1850, California became part of the United States following the Mexican–American War and the admission of California to the union. The city is the seat of San Diego County and is the center of the region as well as the San Diego–Tijuana metropolitan area. San Diegos main economic engines are military and defense-related activities, tourism, international trade, the presence of the University of California, San Diego, with the affiliated UCSD Medical Center, has helped make the area a center of research in biotechnology. The original inhabitants of the region are now known as the San Dieguito, the area of San Diego has been inhabited by the Kumeyaay people. The first European to visit the region was Portuguese-born explorer Juan Rodríguez Cabrillo sailing under the flag of Castile, sailing his flagship San Salvador from Navidad, New Spain, Cabrillo claimed the bay for the Spanish Empire in 1542, and named the site San Miguel. In November 1602, Sebastián Vizcaíno was sent to map the California coast, in May 1769, Gaspar de Portolà established the Fort Presidio of San Diego on a hill near the San Diego River. It was the first settlement by Europeans in what is now the state of California, in July of the same year, Mission San Diego de Alcalá was founded by Franciscan friars under Junípero Serra. By 1797, the mission boasted the largest native population in Alta California, with over 1,400 neophytes living in, Mission San Diego was the southern anchor in California of the historic mission trail El Camino Real. Both the Presidio and the Mission are National Historic Landmarks, in 1821, Mexico won its independence from Spain, and San Diego became part of the Mexican territory of Alta California. In 1822, Mexico began attempting to extend its authority over the territory of Alta California. The fort on Presidio Hill was gradually abandoned, while the town of San Diego grew up on the land below Presidio Hill. The Mission was secularized by the Mexican government in 1833, the 432 residents of the town petitioned the governor to form a pueblo, and Juan María Osuna was elected the first alcalde, defeating Pío Pico in the vote
2.
Noble County, Indiana
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Noble County is a county located in the U. S. state of Indiana. As of 2010, the population was 47,536, the county is divided into 13 townships which provide local services. Noble County comprises the Kendallville, IN Micropolitan Statistical Area and is included in the Fort Wayne-Huntington-Auburn, Noble County was formed in 1836. It was named for Governor Noah Noble, the original settlers in Noble County were settlers from New England known as Yankees, these were people descended from the English Puritans who settled New England in the 1600s. They were part of a wave of New Englanders who migrated west to what was then the Northwest Territory during the early 1800s and this migration was sparked as a result of the completion of the Erie Canal and conclusion of the Black Hawk War. They founded the towns of Kendallville and Albion, according to the 2010 census, the county has a total area of 417.43 square miles, of which 410.84 square miles is land and 6.59 square miles is water. Sand Hill, the second-highest named point in Indiana, is located in Noble County, average monthly precipitation ranged from 1.80 inches in February to 4.44 inches in June. The county government is a constitutional body granted specific powers by the Constitution of Indiana, the county council is the legislative branch of the county government and controls all spending and revenue collection. Representatives are elected from county districts, the council members serve four-year terms and are responsible for setting salaries, the annual budget and special spending. The council also has limited authority to local taxes, in the form of an income and property tax that is subject to state level approval, excise taxes. The executive body of the county is made of a board of commissioners, the commissioners are elected county-wide, in staggered terms, and each serves a four-year term. One of the commissioners, typically the most senior, serves as president, the commissioners are charged with executing the acts legislated by the council, collecting revenue and managing day-to-day functions of the county government. The county maintains a small court that can handle some civil cases. The judge on the court is elected to a term of four years, the judge is assisted by a constable who is elected to a four-year term. In some cases, court decisions can be appealed to the state circuit court. The county has several other elected offices, including sheriff, coroner, auditor, treasurer, recorder, surveyor, each of these elected officers serves a term of four years and oversees a different part of county government. Members elected to county government positions are required to declare party affiliations, each of the townships has a trustee who administers rural fire protection and ambulance service, provides poor relief and manages cemetery care, among other duties. The trustee is assisted in these duties by a township board
3.
Noble County, Ohio
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Noble County is a county located in the U. S. state of Ohio. As of the 2010 census, the population was 14,645, the county is named for Rep. Warren P. Noble of the Ohio House of Representatives, who was a settler there. Noble County was formed on March 11,1851 from portions of Guernsey, Morgan, Monroe and it was the last county to be formed in Ohio and, therefore, represents the youngest county in the state. It was named for either James Noble or Warren P. Noble, Noble County was home to the first North American oil well, the Thorla-McKee Well, discovered in 1814. It was the last of Ohios 88 counties to be formed, in 1925, a United States Navy dirigible, USS Shenandoah, was caught in a storm over Noble County, and broke into several pieces. Of those on board,14 were killed and 29 survived, according to the U. S. Census Bureau, the county has a total area of 405 square miles, of which 398 square miles is land and 6.6 square miles is water. The population density was 35 people per square mile, there were 5,480 housing units at an average density of 14 per square mile. The racial makeup of the county was 92. 55% White,6. 69% Black or African American,0. 26% Native American,0. 09% Asian,0. 03% from other races,0. 43% of the population were Hispanic or Latino of any race. 24. 30% of all households were made up of individuals and 12. 60% had someone living alone who was 65 years of age or older, the average household size was 2.61 and the average family size was 3.10. In the county, the population was out with 22. 60% under the age of 18,11. 70% from 18 to 24,31. 80% from 25 to 44,20. 80% from 45 to 64. The median age was 36 years, for every 100 females there were 130.80 males. For every 100 females age 18 and over, there were 140.50 males, the median income for a household in the county was $32,940, and the median income for a family was $38,939. Males had an income of $30,911 versus $20,222 for females. The per capita income for the county was $14,100, about 8. 30% of families and 11. 40% of the population were below the poverty line, including 13. 90% of those under age 18 and 11. 90% of those age 65 or over. As of the 2010 United States Census, there were 14,645 people,4,852 households, the population density was 36.8 inhabitants per square mile. There were 6,053 housing units at a density of 15.2 per square mile. The racial makeup of the county was 96. 1% white,2. 5% black or African American,0. 3% American Indian,0. 1% Asian,0. 2% from other races, and 0. 8% from two or more races
4.
Noble County, Oklahoma
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Noble County is located in the north central part of Oklahoma. As of the 2010 census, the population was 11,561 and it was part of the Cherokee Outlet in Indian Territory until Oklahoma Territory was created in 1890, and the present county land was designated as County P. After the U. S. government opened the area to settlement in 1893, it was renamed Noble County for John Willock Noble. Timothy McVeigh was arrested in Noble County in 1995 after the Oklahoma City bombing, subsequently, McVeigh was tried, convicted and executed for the crime. The arresting officer was later elected sheriff of Noble County, during the 18th and 19th centuries, the area now occupied by Noble County was used as a hunting ground by the Osage Indians. In 1835, a treaty with the Cherokees made it part of the so-called Cherokee Outlet, during the time of Cherokee ownership, white cattlemen who belonged to the Cherokee Strip Live Stock Association leased grazing land from the tribe. Later, reservations were created in the part of the county for the Otoe. These reservations existed until 1904, when the lands were allotted and added to Noble County, the Cherokee Outlet became part of Oklahoma Territory at the time of the Oklahoma Organic Act, and was divided into counties. After the 1893 opening of the Cherokee Outlet for settlement by non-Indians, one county, originally designated as County P, was renamed in honor of John W. Noble, interior secretary in 1893. McVeigh was stopped for not having a car tag on his car and he was minutes from being released when the Noble County Sheriffs Department was notified to hold McVeigh. McVeigh was tried and convicted for the attack that killed 168 persons. McVeighs arresting officer, Charlie Hanger, was elected Noble County Sheriff in 2004, in 2010, the Keystone-Cushing Pipeline was constructed north to south through Noble County. According to the U. S. Census Bureau, the county has an area of 743 square miles. The Arkansas River forms part of the northeastern boundary. Two of its tributaries, Red Rock Creek in the north and by Black Bear Creek in the south, drain the county before emptying into the Arkansas River. Kay County Osage County Pawnee County Payne County Logan County Garfield County As of the census of 2000, there were 11,411 people,4,504 households, there were 5,082 housing units at an average density of 3/km². The racial makeup of the county was 86. 44% White,1. 58% Black or African American,7. 57% Native American,0. 33% Asian,0. 03% Pacific Islander,0. 65% from other races, and 3. 40% from two or more races. 1. 80% of the population were Hispanic or Latino of any race,25. 50% of all households were made up of individuals and 11. 20% had someone living alone who was 65 years of age or older
5.
Victory ship
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The Victory ship was a class of cargo ship produced in large numbers by North American shipyards during World War II to replace losses caused by German submarines. A total of 531 Victory ships were built, one of the first acts of the United States War Shipping Administration upon its formation in February 1942 was to commission the design of what came to be known as the Victory class. The design was an enhancement of the Liberty ship, which had successfully produced in extraordinary numbers. Victory ships were larger than Liberty ships,14 feet longer at 455 feet,6 feet wider at 62 ft. Displacement was up just under 1,000 tons, to 15,200, with a raised forecastle and a more sophisticated hull shape to help achieve the higher speed, they had a quite different appearance from Liberty ships. To make them vulnerable to U-boat attacks, Victory ships made 15 to 17 knots,4 to 6 knots faster than the Libertys. The extra speed was achieved through more modern, efficient engines, most used steam turbines, which had been in short supply earlier in the war and reserved for warships. All were oil-fired, but for a handful of Canadian vessels completed with both coal bunkers and oil tanks, another improvement was electrically powered auxiliary equipment, rather than steam-driven machinery. To prevent the hull fractures that a few Liberty ships developed and these were manned by United States Navy Armed Guard personnel. The VC2-S-AP5 Haskell-class attack transports were armed with the 5-inch stern gun, one quad 40 mm Bofors cannon, four dual 40 mm Bofors cannon, the Haskells were operated and crewed exclusively by U. S. Navy personnel. The Victory ship was noted for good proportion of cubic between holds for a ship of its day. A Victory ships cargo hold one, two and five hatches are a single rigged with a capacity of 70,400,76,700, and 69,500 bale cubic feet respectively. Victory ships hold three and four hatches are double rigged with a capacity of 136,100 and 100,300 bale cubic feet respectively. Victory ship have built in mast, booms and derrick cranes, the first vessel was SS United Victory launched at Oregon Shipbuilding Corporation on 12 January 1944 and completed on 28 February 1944, making her maiden voyage a month later. American vessels frequently had a name incorporating the word Victory, the British and Canadians used Fort and Park respectively. Although initial deliveries were slow—only 15 had been delivered by May 1944—by the end of the war 531 had been constructed, because the Atlantic battle had been won by the time that the first of the Victory ships appeared none were sunk by U-boats. Three were sunk by Japanese kamikaze attack in April of 1945, many Victory ships were converted to troopship to bring US soldiers home at the end of World War II as part of Operation Magic Carpet. A total of 97 Victory ships were converted to carry up to 1,600 soldiers
6.
United States Maritime Commission
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It also formed the United States Maritime Service for the training of seagoing ships officers to man the new fleet. The purpose of the Maritime Commission was multifold as described in the Merchant Marine Acts Declaration of Policy. S, Merchant Marine prior to the Act. Another function given to the Commission involved the formation of the U. S. Maritime Service for the training of seagoing ships officers to man the new fleet, the actual licensing of officers and seamen still resided with the Bureau of Marine Inspection and Navigation. President Roosevelt nominated Joseph P. Kennedy first head of the Commission, Kennedy held that position until February 1938 when he left to become US Ambassador to Great Britain. The other four members of the Commission in the years before the beginning of World War II were a mix of retired officers and men from disciplines of law. The man most notable in the group Land brought to the Commission was Commander Howard L. Vickery, USN, as a symbol of the rebirth of the U. S. Upon the U. S. entry into World War II, America was requisitioned by the U. S. Navy and became USS West Point. Most of the C2s and C3s were converted to Navy auxiliaries, notably attack cargo ships, attack transports, the Commission also was tasked with the construction of many hundred military type vessels such as Landing Ship, Tank s and Tacoma-class frigates and large troop transports. By the end of the war, U. S. shipyards working under Maritime Commission contracts had built a total of 5,777 oceangoing merchant, in early 1942 both the training and licensing was transferred to the U. S. S. With the end of World War II, both the Emergency and Long Range shipbuilding programs were terminated as there were far too many merchant vessels now for the Nations peacetime needs. In 1946, the Merchant Ship Sales Act was passed to sell off a portion of the ships previously built during the war to commercial buyers. Although not sold outright to nations that were enemies during the war, for the next 25 years, in ports all around the world one could find dozens of ships which had been built during the war but which now were used in peace. Ships not disposed of through the Ship Sales Act were placed one of eight National Defense Reserve Fleet sites maintained on the Atlantic, Pacific. On several occasions in the postwar years ships in the fleets were activated for both military and humanitarian aid missions. The last major mobilization of the NDRF came during the Vietnam War, since then, a smaller fleet of ships called the Ready Reserve Force has been mobilized to support both humanitarian and military missions. The Maritime Commission was abolished on 24 May 1950, and its functions were divided between the U. S. S. Merchant Marine Academy which had built and opened during World War II. 1936, Merchant Marine Act abolishes Shipping Board and establishes Maritime Commission,1937, Joseph P. S. merchant shipping has been held by many agencies since 1917
7.
Richmond, California
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Richmond is a city in western Contra Costa County, California, United States. The city was incorporated on August 7,1905, under the McLaughlin Administration, Richmond was the largest city in the United States served by a Green Party mayor. As of the 2010 U. S. Census, the population is at 103,710. The largest, Richmond, Virginia, is the namesake of the California city, the Ohlone Indians were the first inhabitants of the Richmond area, settling an estimated 5,000 years ago. The name Richmond appears to predate actual incorporation by more than fifty years, the Atchison, Topeka and Santa Fe Railroad had its terminus at Richmond. The first post office opened in 1900, Richmond was founded and incorporated in 1905, carved out of Rancho San Pablo, from which the nearby town of San Pablo inherited its name. Until the enactment of prohibition in 1919, the city had the largest winery in the world, in the 1920s the Ku Klux Klan was active in the city. In 1930 the Ford Motor Company opened a plant called Richmond Assembly Plant which moved to Milpitas in the 1960s. The old Ford plant has been a National Historic Place since 1988, the city was a small town at that time, until the onset of World War II which brought on a rush of migrants and a boom in the industrial sector. Standard Oil set up here in 1901, including a what is now the Chevron Richmond Refinery and tank farm. There is a pier into San Francisco Bay south of Point Molate for oil tankers, the western terminus of the Santa Fe Railroad was established in Richmond with ferry connections at Ferry Point in the Brickyard Cove area of Point Richmond to San Francisco. Many of these lived in specially constructed houses scattered throughout the San Francisco Bay Area, including Richmond, Berkeley. A specially built rail line, the Shipyard Railway, transported workers to the shipyards, kaisers Richmond shipyards built 747 Victory and Liberty ships for the war effort, more than any other site in the U. S. The city broke many records and even built one Liberty ship in a five days. On average the yards could build a ship in thirty days, the medical system established for the shipyard workers at the Richmond Field Hospital eventually became todays Kaiser Permanente HMO. It remained in operation until 1993 when it was replaced by the modern Richmond Medical Center hospital, Point Richmond was originally the commercial hub of the city, but a new downtown arose in the center of the city. It was populated by many department stores such as Kress, J. C. Penney, Sears, Macys, during the war the population increased dramatically and peaked at around 120,000 by the end of the war. Once the war ended the workers were no longer needed
8.
International Code of Signals
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The International Code of Signals is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. Signals can be sent by flaghoist, signal lamp, flag semaphore, radiotelegraphy, the International Code is the most recent evolution of a wide variety of maritime flag signalling systems. It has done this by first establishing an alphabet, along with a spoken form of each letter. Combinations of these characters are assigned as codes for various standardized messages. One simply raises the Kilo flag, or sends the Morse Code equivalent by flashing light, one of the elegant aspects of the ICS is that all of the standardized messages come in nine languages. It is immaterial if the sender and receiver are using different languages, the code also covers procedural aspects, how naval ships indicate that they are using the ICS, use in radiotelephony, and various other matters. Prior to 1969, the code was more extensive, covering a wider range of messages. Since 1969, it has reduced to focus on navigation and safety. Signals can be sorted into three groups, Single-letter signals which are very urgent, important, or common, two-letter signals for other messages, sometimes followed with a numerical complement which supplements or modifies the message. Three-letter signals beginning with M, these are the Medical Signal Codes, in some cases, additional characters are added to indicate quantities, bearing, course, distance, date, time, latitude, or longitude. There is also provision for spelling words and for indicating use of other codes, several of the more common single-letter signals are shown at the right. Two-letter signals cover a broad gamut of situations, the reader is urged to download a copy of the Code from the link below. Repeated characters can be a problem in flaghoist, to avoid having to carry multiple sets of signal flags, the Code uses three substitute flags. These repeat the flag at the indicated position, for instance, to signal MAA the Mike, Alfa, and 2nd substitute flags would be flown, the substitute indicating a repeat of the second character. The Medical Signal Code is a means of providing assistance when medical personnel are not present, even where there are no language problems, the Medical Signal Code is useful in providing a standard method of case description and treatment. There is also a standard list of medicaments, keyed to a standard ships medicine chest carried by all merchant ships, the Medical signals all begin with the letter M followed by two more letters, and sometimes with additional numerals or letters. The International Code of Signals was preceded by a variety of signals and private signals, most notably Marryats Code. What is now the International Code of Signals was drafted in 1855 by the British Board of Trade and it came in two parts, the first containing universal and international signals, and the second British signals only
9.
Service star
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The service star may also be referred to as a campaign star or battle star depending on which award is authorized the star and the manner in which the device is used for the award. Service stars, Campaign stars, and Battle stars are worn with one point of the star pointing up on the ribbon of a medal. A silver star is worn instead of five bronze stars, a service star is sometimes mistaken for a Bronze Star or Silver Star. The service star is similar to the gold and silver 5⁄16 Inch Stars which may be authorized to be worn on specific individual decorations of certain services to denote additional decorations. Service stars are authorized for the following United States expeditionary medals, Armed Forces Expeditionary Medal, Navy Expeditionary Medal, Service stars are also authorized for the Global War on Terrorism Expeditionary Medal effective February 9,2015 retroactive to September,11,2001. Each star represents a deployment in support of an approved GWOT operation, only one GWOT-EM is awarded for each operation. The five GWOT-EM approved operations by inclusive dates are, Enduring Freedom,11,2001 - TBD Iraqi Freedom, Mar.19,2003 - Aug.31, 2010Nomad Shadow, Nov.05,2007 - TBD New Dawn, Sep. 01,2010 - Dec.31,2011 Inherent Resolve, the bronze service star is also authorized for certain unit awards such as the Presidential Unit Citation to denote a second and subsequent award. The service ribbon itself indicates the first award, with a service star being added to indicate the second. If ever applicable, a service star is worn instead of five bronze stars. As a result, at least one star will be worn on the ribbon. However, though authorized for wear, no battle stars have been approved for wear, only a combatant commander can initiate a request for a battle star. The Chairman of the Joint Chiefs of Staff is the approving authority, only one award of the Global War on Terrorism Expeditionary Medal and one award of the Global War on Terrorism Service Medal may be authorized for any individual. The specific manner of wear and symbolism of the stars varied from medal to medal, for example, an American Campaign Medal with a bronze service star indicated the service member had participated in an antisubmarine campaign. On other medals, bronze service stars were used on the service ribbon for those recipients of medals in possession of authorized campaign claps for those medals. Similarly, during the Vietnam War and afterwards, the Battle Effectiveness Award took the place of receiving battle stars for superior battle efficiency in place of combat operations. Awards and decorations of the United States military United States military award devices 5/16 inch star Oak leaf cluster United States award regulations for World War II
10.
World War II
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World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the worlds countries—including all of the great powers—eventually forming two opposing alliances, the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. Marked by mass deaths of civilians, including the Holocaust and the bombing of industrial and population centres. These made World War II the deadliest conflict in human history, from late 1939 to early 1941, in a series of campaigns and treaties, Germany conquered or controlled much of continental Europe, and formed the Axis alliance with Italy and Japan. Under the Molotov–Ribbentrop Pact of August 1939, Germany and the Soviet Union partitioned and annexed territories of their European neighbours, Poland, Finland, Romania and the Baltic states. In December 1941, Japan attacked the United States and European colonies in the Pacific Ocean, and quickly conquered much of the Western Pacific. The Axis advance halted in 1942 when Japan lost the critical Battle of Midway, near Hawaii, in 1944, the Western Allies invaded German-occupied France, while the Soviet Union regained all of its territorial losses and invaded Germany and its allies. During 1944 and 1945 the Japanese suffered major reverses in mainland Asia in South Central China and Burma, while the Allies crippled the Japanese Navy, thus ended the war in Asia, cementing the total victory of the Allies. World War II altered the political alignment and social structure of the world, the United Nations was established to foster international co-operation and prevent future conflicts. The victorious great powers—the United States, the Soviet Union, China, the United Kingdom, the Soviet Union and the United States emerged as rival superpowers, setting the stage for the Cold War, which lasted for the next 46 years. Meanwhile, the influence of European great powers waned, while the decolonisation of Asia, most countries whose industries had been damaged moved towards economic recovery. Political integration, especially in Europe, emerged as an effort to end pre-war enmities, the start of the war in Europe is generally held to be 1 September 1939, beginning with the German invasion of Poland, Britain and France declared war on Germany two days later. The dates for the beginning of war in the Pacific include the start of the Second Sino-Japanese War on 7 July 1937, or even the Japanese invasion of Manchuria on 19 September 1931. Others follow the British historian A. J. P. Taylor, who held that the Sino-Japanese War and war in Europe and its colonies occurred simultaneously and this article uses the conventional dating. Other starting dates sometimes used for World War II include the Italian invasion of Abyssinia on 3 October 1935. The British historian Antony Beevor views the beginning of World War II as the Battles of Khalkhin Gol fought between Japan and the forces of Mongolia and the Soviet Union from May to September 1939, the exact date of the wars end is also not universally agreed upon. It was generally accepted at the time that the war ended with the armistice of 14 August 1945, rather than the formal surrender of Japan
11.
Korean War
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The Korean War began when North Korea invaded South Korea. The United Nations, with the United States as the principal force, China came to the aid of North Korea, and the Soviet Union gave some assistance. Korea was ruled by Japan from 1910 until the days of World War II. In August 1945, the Soviet Union declared war on Japan, as a result of an agreement with the United States, U. S. forces subsequently moved into the south. By 1948, as a product of the Cold War between the Soviet Union and the United States, Korea was split into two regions, with separate governments, both governments claimed to be the legitimate government of all of Korea, and neither side accepted the border as permanent. The conflict escalated into open warfare when North Korean forces—supported by the Soviet Union, on that day, the United Nations Security Council recognized this North Korean act as invasion and called for an immediate ceasefire. On 27 June, the Security Council adopted S/RES/83, Complaint of aggression upon the Republic of Korea and decided the formation, twenty-one countries of the United Nations eventually contributed to the UN force, with the United States providing 88% of the UNs military personnel. After the first two months of war, South Korean forces were on the point of defeat, forced back to the Pusan Perimeter, in September 1950, an amphibious UN counter-offensive was launched at Inchon, and cut off many North Korean troops. Those who escaped envelopment and capture were rapidly forced back north all the way to the border with China at the Yalu River, at this point, in October 1950, Chinese forces crossed the Yalu and entered the war. Chinese intervention triggered a retreat of UN forces which continued until mid-1951, after these reversals of fortune, which saw Seoul change hands four times, the last two years of fighting became a war of attrition, with the front line close to the 38th parallel. The war in the air, however, was never a stalemate, North Korea was subject to a massive bombing campaign. Jet fighters confronted each other in combat for the first time in history. The fighting ended on 27 July 1953, when an armistice was signed, the agreement created the Korean Demilitarized Zone to separate North and South Korea, and allowed the return of prisoners. However, no treaty has been signed, and the two Koreas are technically still at war. Periodic clashes, many of which are deadly, continue to the present, in the U. S. the war was initially described by President Harry S. Truman as a police action as it was an undeclared military action, conducted under the auspices of the United Nations. In South Korea, the war is referred to as 625 or the 6–2–5 Upheaval. In North Korea, the war is referred to as the Fatherland Liberation War or alternatively the Chosǒn War. In China, the war is called the War to Resist U. S
12.
Spanish Navy
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The Spanish Navy, is the maritime branch of the Spanish Armed Forces and one of the oldest active naval forces in the world. Reform under the Bourbon dynasty improved its logistical and military capacity in the 18th century, currently, the Spanish Armada is the third largest navy in Europe, after the British Royal Navy and the French Navy, and the sixth in the world ranking. The main bases of the Spanish Navy are located in Rota, Ferrol, San Fernando, the roots of the modern Spanish navy date back to before the unification of Spain. By the late Middle Ages, the two kingdoms that would later combine to form Spain, Aragon and Castile, had developed powerful fleets. Aragon possessed the third largest navy in the late medieval Mediterranean, although its capabilities were exceeded by those of Venice, in 1402, a Castilian expedition led by Juan de Bethencourt conquered the Canary Islands for Henry III of Castile. In the 15th century, Castile entered into a race of exploration with Portugal, in 1492, two caravels and a carrack, commanded by Christopher Columbus, arrived in America, on an expedition that sought a westward oceanic passage across the Atlantic, to the Far East. This began the era of trade routes, pioneered by the Spanish in the seas to the west of Europe. The navy also carried explorers to the North American mainland, including Juan Ponce de León and Álvarez de Pineda, in 1519, Spain sent out the first expedition of world circumnavigation in history, which was put in the charge of the Portuguese Commander Ferdinand Magellan. Following the death of Magellan in the Philippines, the expedition was completed under the command of Juan Sebastián Elcano in 1522, for two and a half centuries, the Manila galleons operated across the Pacific linking Manila and Acapulco. Until the early 17th century, the Pacific Ocean, aside from the Marianas and Caroline Islands, several naval expeditions also discovered the Tuvalu archipelago, the Marquesas, the Solomon Islands and New Guinea in the South Pacific. In the quest for Terra Australis, Spanish explorers in the 17th century also discovered the Pitcairn, most significantly, from 1565 Spanish fleets explored and colonised the Philippine archipelago, the Spanish East Indies. This arrangement continued until superseded by the decline of galley warfare during the 17th century, most notable of these attacks was the Battle of Gibraltar in 1607, in which a Dutch squadron destroyed a fleet of galleons at anchor in the confines of the bay. This naval war took on a dimension with actions in the Caribbean. In the 1580s, the conflict in the Netherlands drew England into war with Spain, the effort to neutralise this threat led to a disastrous attempt to invade England in 1588. This defeat led to a reform of fleet operations, the navy at this time was not a single operation but consisted of various fleets, made up mainly of armed merchantmen with escorts of royal ships. The Armada fiasco marked a point in naval warfare, where gunnery was now more important than ramming and boarding. During the 1590s, the expansion of these allowed a great increase in the overseas trade and massive increase in the importation of luxuries. Port defences at Cadiz were upgraded and all attempts to repeat the attack in the following centuries would fail, meanwhile, Spanish ships were able to step up operations in the English Channel, the North Sea and towards Ireland
13.
Autonomous communities of Spain
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Spain is not a federation, but a highly decentralized unitary state. Some scholars have referred to the system as a federal system in all. There are 17 autonomous communities and two cities that are collectively known as autonomies. The two autonomous cities have the right to become autonomous communities, but neither has yet used this right and this unique framework of territorial administration is known as the State of Autonomies. The autonomous communities are governed according to the constitution and their own organic laws known as Statutes of Autonomy, since devolution was intended to be asymmetrical in nature, the scope of competences vary for each community, but all have the same parliamentary structure. Spain is a country made up of different regions with varying economic and social structures, as well as different languages. While the entire Spanish territory was united under one crown by the 16th century, the constituent territories—be it crowns, kingdoms, principalities or dominions—retained much of their former institutional existence, including limited legislative, judicial or fiscal autonomy. These territories also exhibited a variety of customs, laws. From the 18th century onwards, the Bourbon kings and the government tried to establish a more centralized regime, leading figures of the Spanish Enlightenment advocated for the building of a Spanish nation beyond the internal territorial boundaries. This culminated in 1833, when Spain was divided into 49 provinces and these were the Basque Country and Catalonia. This gave rise to peripheral nationalisms along with Spanish nationalism, therefore, economic and social changes that had produced a national cultural unification in France had the opposite effect in Spain. In a response to Catalan demands, limited autonomy was granted to Catalonia in 1913 and it was granted again in 1932 during the Second Spanish Republic, when the Generalitat, Catalonias mediaeval institution of government, was restored. During General Francos dictatorial regime, centralism was most forcefully enforced as a way of preserving the unity of the Spanish nation, peripheral nationalism, along with communism and atheism were regarded by his regime as the main threats. When Franco died in 1975, Spain entered into a phase of transition towards democracy, the then Prime Minister of Spain, Adolfo Suárez, met with Josep Tarradellas, president of the Generalitat of Catalonia in exile. An agreement was made so that the Generalitat would be restored and limited competencies would be transferred while the constitution was still being written. In the end, the constitution, published and ratified in 1979, found a balance in recognizing the existence of nationalities and regions in Spain, within the indissoluble unity of the Spanish nation. The starting point in the organization of Spain was the second article of the constitution. In order to exercise this right, the established a open process whereby the nationalities
14.
Aragon
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Aragon is an autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. Located in northeastern Spain, the Aragonese autonomous community comprises three provinces, Huesca, Zaragoza, and Teruel, the current Statute of Autonomy declares Aragon a nationality of Spain. Aragons northern province of Huesca borders France and is positioned in the middle of the Pyrenees, within Spain, the community is flanked by Catalonia to the east, Valencia and Castile–La Mancha to the south, and Castile and León, La Rioja, and Navarre to the west. Aragon is home to many rivers—most notably, the river Ebro, Spains largest river in volume and it is also home to the Aneto, the highest mountain in the Pyrenees. As of 2015, the population of Aragon was 1,317,847, with more than half of it living in Zaragoza. As of 2015, half of Aragons population,50. 45%, Huesca is the only other city in the region with a population greater than 50,000. The majority of Aragonese citizens,71. 8%, live in the province of Zaragoza,17. 1% in Huesca and 11. 1% in Teruel, the population density of the region is the second lowest in Spain, only 26, 8/km2, after Castilla La Mancha. Only four cities have more than 20,000 inhabitants, Zaragoza 700,000, Huesca 50,000, Teruel 35,000 and Calatayud 20,000. Spanish is the language in most of Aragon, and it is the only official language, understood. The strip-shaped Catalan-speaking area in Aragon is often called La Franja, with such a low population density large areas of Aragon remain wild and relatively untouched. It is a land of natural contrasts, both in climate and geologically, from the green valleys and snow-capped peaks of the Pyrenees to the dry plains. Aragons Pyrenees include splendid and varied mountain landscapes with soaring peaks, deep canyons, dense forests and its rugged peaks include the Aneto, the highest in the range, the misty Monte Perdido, Perdiguero, Cotiella and many others. The park is one of the last sanctuaries of birds of prey in the range. Many beautiful mountain butterflies and flowers can be seen in the summer, the principal valleys in the mountains include those of Hecho, Canfranc, Tena, Benasque and others. The green valleys hide pretty villages with nice Romanesque churches and typical Pyrenean houses with flowers on the balconies, the oldest Romanesque cathedral in Spain is located in the medieval town of Jaca in the very northern part of Huesca Province. In the Pyrenean foothills, or pre-Pyrenees, the Mallos de Riglos are a natural rock formation. Ancient castles nestle on lonely hills, the most famous being the magnificent Loarre Castle, further south, the Ebro valley, irrigated by the river Ebro, is a rich and fertile agricultural area covered with vast fields of wheat, barley and other fruit and vegetable crops. Many beautiful and little-known settlements, castles and Roman ruins dot the landscape here, some of the most notable towns here include Calatayud, Daroca, Sos del Rey Catolico, Caspe and others
15.
Haskell-class attack transport
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Haskell-class attack transports were amphibious assault ships of the United States Navy created in 1944. They were designed to transport 1,500 troops and their combat equipment, the Haskells were very active in the World War II Pacific Theater of Operations, landing Marines and Army troops and transporting casualties at Iwo Jima and Okinawa. Ships of the class were among the first Allied ships to enter Tokyo Bay at the end of World War II, after the end of World War II, most participated in Operation Magic Carpet, the massive sealift of US personnel back to the United States. A few of the Haskell class were reactivated for the Korean War, the Haskell class, Maritime Commission standard type VC2-S-AP5, is a sub‑type of the World War II Victory ship design. 117 were launched in 1944 and 1945, with 14 more being finished as another VC2 type or canceled, the VC2-S-AP5 design was intended for the transport and assault landing of over 1,500 troops and their heavy combat equipment. During Operation Magic Carpet, up to 1,900 personnel per ship were carried homeward, the Haskells carried 25 landing craft to deliver the troops and equipment right onto the beach. The 23 main boats were the 36 feet long, LCVP, the LCVP was designed to carry 36 equipped troops. The other 2 landing craft were the 50 foot long LCM, capable of carrying 60 troops or 30 tons of cargo, the Haskell-class ships were armed with one 5/38 caliber gun, twelve Bofors 40 mm guns, and ten Oerlikon 20 mm guns. See List of Haskell-class attack transports, Haskell-class attack transports included APA-117, USS Haskell, the lead ship, through APA-247, the never completed USS Mecklenburg. The hulls for APA-181 through APA-186 were repurposed to be hospital ships before they were named, ultimately those hospital ships were built on larger C4 plan and the six VC2 hulls were built in a merchant configuration. APA-240 through APA-247 were named, but cancelled in 1945 when the war ended, with the special exception of the USS Marvin H. McIntyre, the Haskell-class ships were all named after counties of the United States. Most of the Haskell-class ships were mothballed in 1946, with only a few remaining in service, many of the Haskell class were scrapped in 1973-75. A few were converted into Missile Range Instrumentation Ships, the USS Gage, the last remaining ship in the Haskell configuration, was scrapped in 2009 at ESCO Marine, in Brownsville, Tx. The USS Sherburne, which was converted and renamed USS Range Sentinel, lasted until she was scrapped in 2012
16.
Attack transport
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Attack transport is a United States Navy ship classification for a variant of ocean-going troopship adapted to transporting invasion forces ashore. Unlike standard troopships – often drafted from commercial shipping fleets – that rely on either a quay or tenders and they are not to be confused with landing ships, which beach themselves to bring their troops directly ashore, or their general British equivalent, the Landing ship, infantry. A total of 388 APA and AKA attack transports were built for service in World War II in at least fifteen classes, depending on class they were armed with one or two 5-inch guns and a variety of 40 mm and 20 mm anti-aircraft weapons. Some of these were outfitted with heavy boat davits and other arrangements to enable them to handle landing craft] for amphibious assault operations. In 1942, when the AP number series had extended beyond 100. Therefore, the new classification of attack transport was created and numbers assigned to fifty-eight APs then in commission or under construction, the actual reclassification of these ships was not implemented until February 1943, by which time two ships that had APA numbers assigned had been lost. Another two transports sunk in 1942, USS George F. Elliott and USS Leedstown, were configured as attack transports. In addition, as part of the 1950s modernization of the Navys amphibious force with faster ships, as a result, only attack transport ships were assigned for the assault, without support from any companion attack cargo ships. This created extreme logistics burdens for the force because it resulted in considerable overloading of the transports with both men and equipment. To compound problems, these forces were not able to assemble or train together before executing the Aleutian invasion on 11 May 1943, lack of equipment and training subsequently resulted in confusion during the landings on Attu. By the end of the 1950s, it was clear that boats would soon be superseded by amphibious tractors and helicopters for landing assault troops. These could not be supported by attack transports in the numbers required, by 1969, when the surviving attack transports were redesignated LPA, only a few remained in commissioned service. The last of these were decommissioned in 1980 and sold abroad, the APA/LPA designation may, therefore, now be safely considered extinct. Nearly identical ships used to transport vehicles, supplies and landing craft, Landing Ship Infantry This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. APA/LPA -- Attack Transports by the US Naval Historical Center
17.
Tonne
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The SI symbol for the tonne is t, adopted at the same time as the unit itself in 1879. Its use is also official, for the metric ton, within the United States, having been adopted by the US National Institute of Standards and it is a symbol, not an abbreviation, and should not be followed by a period. Informal and non-approved symbols or abbreviations include T, mT, MT, in French and all English-speaking countries that are predominantly metric, tonne is the correct spelling. Before metrication in the UK the unit used for most purposes was the Imperial ton of 2,240 pounds avoirdupois, equivalent to 1,016 kg, differing by just 1. 6% from the tonne. Ton and tonne are both derived from a Germanic word in use in the North Sea area since the Middle Ages to designate a large cask. A full tun, standing about a high, could easily weigh a tonne. An English tun of wine weighs roughly a tonne,954 kg if full of water, in the United States, the unit was originally referred to using the French words millier or tonneau, but these terms are now obsolete. The Imperial and US customary units comparable to the tonne are both spelled ton in English, though they differ in mass, one tonne is equivalent to, Metric/SI,1 megagram. Equal to 1000000 grams or 1000 kilograms, megagram, Mg, is the official SI unit. Mg is distinct from mg, milligram, pounds, Exactly 1000/0. 453 592 37 lb, or approximately 2204.622622 lb. US/Short tons, Exactly 1/0. 907 184 74 short tons, or approximately 1.102311311 ST. One short ton is exactly 0.90718474 t, imperial/Long tons, Exactly 1/1. 016 046 9088 long tons, or approximately 0.9842065276 LT. One long ton is exactly 1.0160469088 t, for multiples of the tonne, it is more usual to speak of thousands or millions of tonnes. Kilotonne, megatonne, and gigatonne are more used for the energy of nuclear explosions and other events. When used in context, there is little need to distinguish between metric and other tons, and the unit is spelt either as ton or tonne with the relevant prefix attached. *The equivalent units columns use the short scale large-number naming system used in most English-language countries. †Values in the equivalent short and long tons columns are rounded to five significant figures, ǂThough non-standard, the symbol kt is also sometimes used for knot, a unit of speed for sea-going vessels, and should not be confused with kilotonne. A metric ton unit can mean 10 kilograms within metal trading and it traditionally referred to a metric ton of ore containing 1% of metal. In the case of uranium, the acronym MTU is sometimes considered to be metric ton of uranium, in the petroleum industry the tonne of oil equivalent is a unit of energy, the amount of energy released by burning one tonne of crude oil, approximately 42 GJ
18.
Babcock & Wilcox
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Babcock & Wilcox Enterprises is an American power generation company headquartered in Charlotte, North Carolina. The company was founded in 1867 in Providence, Rhode Island by partners Stephen Wilcox and George Babcock as Babcock, Wilcox & Company to manufacture, built nuclear-powered surface ship, NS Savannah. B&Ws boilers supply more than 300,000 megawatts of installed capacity in over 90 countries around the world, a reactor from B&W was destroyed by a nuclear meltdown in the Three Mile Island accident. During World War II, over half of the US Navy fleet was powered by Babcock & Wilcox boilers, the company has its headquarters in Charlotte, North Carolina. B&W also has joint major joint venture companies in Beijing and the Indian city of Pune, on June 30,2015, Babcock & Wilcox completed a spinoff from BWX Technologies, its former parent which is now headquartered in Lynchburg, Virginia. The two companies began trading separately on July 1, B&W employs approximately 5,700 people, in addition to several thousand joint venture employees. B&W PGG and its subsidiaries have facilities in Ohio, Wisconsin, Arona, Italy, Beijing, China, Esbjerg, Denmark, Babcock & Wilcox MEGTEC LLC B&W SPIG Diamond Power International, Inc. The boilers more safely generated higher pressure steam and was more efficient than existing designs, in 1891, Babcock & Wilcox Ltd is established as a separate United Kingdom company, to be responsible for all sales outside the US and Cuba. In 1902 the New York Citys first subway is powered by B&W boilers, during 1907 and 1909 Theodore Roosevelts Great White Fleet were powered by B&W Boilers. In 1929 B&W installs the worlds first commercial size recovery boiler using the magnesium bisulfite process in Quebec, between 1941 and 1945 B&W designed and delivered 4,100 marine boilers for combat and merchant ships, including 95 percent of the US fleet in Tokyo Bay at Japanese surrender. In 1942, the developed the cyclone furnace. Between 1943 and 1945 B&W provided components, materials and process development for Manhattan Project, between 1949 and 1952 B&W provided the 8 boilers for the SS United States, the fastest ocean liner ever constructed. Between 1953 and 1955 B&W designed and fabricated components for USS Nautilus, in 1961 B&W designed and supplied reactors for world’s first commercial nuclear ship NS Savannah. In 1962 B&W designed and furnished reactor systems for B&Ws first commercial reactor, Indian Point, in 1975 B&W designed and built components for liquid metal fast breeder reactors. In 1975 the long term agreements with the British Babcock & Wilcox Ltd were ended. Subsequently, the British company was renamed Babcock International Group plc, in 1978 B&W designed and built the nuclear reactor that was involved in the Three Mile Island accident. In 1999 B&W was awarded the contract to develop fuel cells, on February 22,2000, B&W filed for Chapter 11 bankruptcy in part as a result of thousands of claims for personal injury due to prolonged exposure to asbestos and asbestos fibers. Claims included asbestosis, lung cancer, pleural and peritoneal mesothelioma, as a condition of emerging from bankruptcy, B&W created a trust fund to compensate victims, but for amounts far less than settlements paid in individual personal injury lawsuits
19.
Boiler
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A boiler is a closed vessel in which water or other fluid is heated. The fluid does not necessarily boil, the heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central heating, boiler-based power generation, cooking, and sanitation. The pressure vessel of a boiler is usually made of steel, stainless steel, especially of the austenitic types, is not used in wetted parts of boilers due to corrosion and stress corrosion cracking. In live steam models, copper or brass is used because it is more easily fabricated in smaller size boilers. For much of the Victorian age of steam, the material used for boilermaking was the highest grade of wrought iron. In the 20th century, design practice instead moved towards the use of steel, which is stronger and cheaper, with welded construction, which is quicker and requires less labour. It should be noted, however, that wrought iron boilers corrode far slower than their steel counterparts. This makes the longevity of older wrought-iron boilers far superior to those of welded steel boilers, cast iron may be used for the heating vessel of domestic water heaters. Although such heaters are usually termed boilers in some countries, their purpose is usually to produce hot water, not steam, the brittleness of cast iron makes it impractical for high-pressure steam boilers. The source of heat for a boiler is combustion of any of several fuels, such as wood, coal, oil, electric steam boilers use resistance- or immersion-type heating elements. Nuclear fission is used as a heat source for generating steam, either directly or, in most cases. Heat recovery steam generators use the heat rejected from other such as gas turbine. 18th century Haycock boilers generally produced and stored large volumes of very low-pressure steam and these could burn wood or most often, coal. Flued boiler with one or two large flues—an early type or forerunner of fire-tube boiler, fire-tube boiler, Here, water partially fills a boiler barrel with a small volume left above to accommodate the steam. This is the type of boiler used in nearly all steam locomotives, the heat source is inside a furnace or firebox that has to be kept permanently surrounded by the water in order to maintain the temperature of the heating surface below the boiling point. Fire-tube boilers usually have a low rate of steam production. Fire-tube boilers mostly burn solid fuels, but are adaptable to those of the liquid or gas variety. Water-tube boiler, In this type, tubes filled with water are arranged inside a furnace in a number of possible configurations and this type generally gives high steam production rates, but less storage capacity than the above
20.
Pounds per square inch
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The pound per square inch or, more accurately, pound-force per square inch is a unit of pressure or of stress based on avoirdupois units. Now converting the psi to standard atmospheres,1 atm =101325 Pa =101325 Pa 6894.757293168 Pa / psi ≈14.70 psi Therefore,1 atmosphere is approximately 14.7 pounds per square inch. Pounds per square inch absolute is used to make it clear that the pressure is relative to a rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around 14.7 psi, the converse is pounds per square inch gauge or pounds per square inch gage, indicating that the pressure is relative to atmospheric pressure. For example, a bicycle tire pumped up to 65 psi above atmospheric pressure. When gauge pressure is referenced to something other than ambient atmospheric pressure, the kilopound per square inch is a scaled unit derived from psi, equivalent to a thousand psi. Ksi are not widely used for gas pressures and they are mostly used in materials science, where the tensile strength of a material is measured as a large number of psi. The conversion in SI Units is 1 ksi =6.895 MPa, the megapound per square inch is another multiple equal to a million psi. It is used in mechanics for the modulus of the materials. The conversion in SI Units is 1 Mpsi =6.895 GPa, inch of water,0.036 psid Blood pressure – clinically normal human blood pressure,2.32 psig/1.55 psig Natural gas residential piped in for consumer appliance, 4–6 psig. Boost pressure provided by a turbocharger, 6–15 psig NFL football,12. 5–13.5 psig Atmospheric pressure at sea level,14
21.
Pascal (unit)
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The pascal is the SI derived unit of pressure used to quantify internal pressure, stress, Youngs modulus and ultimate tensile strength. It is defined as one newton per square meter and it is named after the French polymath Blaise Pascal. Common multiple units of the pascal are the hectopascal which is equal to one millibar, the unit of measurement called standard atmosphere is defined as 101,325 Pa and approximates to the average pressure at sea-level at the latitude 45° N. Meteorological reports typically state atmospheric pressure in hectopascals, the unit is named after Blaise Pascal, noted for his contributions to hydrodynamics and hydrostatics, and experiments with a barometer. The name pascal was adopted for the SI unit newton per square metre by the 14th General Conference on Weights, one pascal is the pressure exerted by a force of magnitude one newton perpendicularly upon an area of one square metre. The unit of measurement called atmosphere or standard atmosphere is 101325 Pa and this value is often used as a reference pressure and specified as such in some national and international standards, such as ISO2787, ISO2533 and ISO5024. In contrast, IUPAC recommends the use of 100 kPa as a standard pressure when reporting the properties of substances, geophysicists use the gigapascal in measuring or calculating tectonic stresses and pressures within the Earth. Medical elastography measures tissue stiffness non-invasively with ultrasound or magnetic resonance imaging, in materials science and engineering, the pascal measures the stiffness, tensile strength and compressive strength of materials. In engineering use, because the pascal represents a small quantity. The pascal is also equivalent to the SI unit of energy density and this applies not only to the thermodynamics of pressurised gases, but also to the energy density of electric, magnetic, and gravitational fields. In measurements of sound pressure, or loudness of sound, one pascal is equal to 94 decibels SPL, the quietest sound a human can hear, known as the threshold of hearing, is 0 dB SPL, or 20 µPa. The airtightness of buildings is measured at 50 Pa, the units of atmospheric pressure commonly used in meteorology were formerly the bar, which was close to the average air pressure on Earth, and the millibar. Since the introduction of SI units, meteorologists generally measure pressures in hectopascals unit, exceptions include Canada and Portugal, which use kilopascals. In many other fields of science, the SI is preferred, many countries also use the millibar or hectopascal to give aviation altimeter settings. In practically all fields, the kilopascal is used instead. Centimetre of water Metric prefix Orders of magnitude Pascals law
22.
Westinghouse Electric Corporation
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The Westinghouse Electric Corporation was an American manufacturing company. It was founded on January 8,1886, as Westinghouse Electric Company and later renamed Westinghouse Electric Corporation by inventor, George Westinghouse had previously founded the Westinghouse Air Brake Company. The corporation purchased CBS broadcasting company in 1995 and became CBS Corporation in 1997, Westinghouse Electric was founded by George Westinghouse in Pittsburgh, Pennsylvania in 1886. The firm became active in developing electric infrastructure throughout the United States, in addition to George Westinghouse, early engineers working for the company included Frank Conrad, Benjamin Garver Lamme, Oliver B. Shallenberger, William Stanley, Nikola Tesla, Stephen Timoshenko and Vladimir Zworykin, early on Westinghouse was a rival to Thomas Edisons electric company. In 1892 Edison was merged with Westinghouses chief AC rival, the Thomson-Houston Electric Company, making even bigger competitor, Westinghouse changed its name to Westinghouse Electric Corporation in 1945. Westinghouse purchased CBS in 1995 and became CBS Corporation in 1997, in 1998, CBS established a brand licensing subsidiary Westinghouse Licensing Corporation. In 1997/1998 the Power Generation Business Unit, headquartered in Orlando, FL, was sold to Siemens AG, a year later, CBS sold all of its nuclear power businesses to British Nuclear Fuels Limited. Soon after, BNFL gained license rights on the Westinghouse trademarks and that company was sold to Toshiba in 2007. The first commercial Westinghouse steam turbine generator, a 1,500 kW unit. The machine, nicknamed Mary-Ann, was the first steam turbine generator to be installed by a utility to generate electricity in the US. George Westinghouse had based his original steam turbine design on designs licensed from the English inventor Charles Parsons. or were built overseas under Westinghouse license. Major Westinghouse licensees or joint venture partners included Mitsubishi Heavy Industries of Japan and Harbin Turbine Co. Westinghouse boasted 50,000 employees by 1900, and established a formal research and development department in 1906. While the company was expanding, it would experience internal financial difficulties, during the Panic of 1907, the Board of Directors forced George Westinghouse to take a six-month leave of absence. Westinghouse officially retired in 1909 and died years later in 1914. Under new leadership, Westinghouse Electric diversified its business activities in electrical technology and it acquired the Copeman Electric Stove Company in 1914 and Pittsburgh High Voltage Insulator Company in 1921. Westinghouse also moved into broadcasting by establishing Pittsburghs KDKA, the first commercial radio station. Westinghouse expanded into the business, establishing the Westinghouse Elevator Company in 1928
23.
Steam turbine
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A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Sir Charles Parsons in 1884, in 1551, Taqi al-Din in Ottoman Egypt described a steam turbine with the practical application of rotating a spit. Steam turbines were described by the Italian Giovanni Branca and John Wilkins in England. The devices described by Taqi al-Din and Wilkins are today known as steam jacks, in 1672 an impulse steam turbine driven car was designed by Ferdinand Verbiest. A more modern version of car was produced some time in the late 18th century by an unknown German mechanic. The modern steam turbine was invented in 1884 by Sir Charles Parsons, the invention of Parsons steam turbine made cheap and plentiful electricity possible and revolutionized marine transport and naval warfare. Parsons design was a reaction type and his patent was licensed and the turbine scaled-up shortly after by an American, George Westinghouse. The Parsons turbine also turned out to be easy to scale up. Parsons had the satisfaction of seeing his invention adopted for all major world power stations, a number of other variations of turbines have been developed that work effectively with steam. The de Laval turbine accelerated the steam to full speed before running it against a turbine blade, De Lavals impulse turbine is simpler, less expensive and does not need to be pressure-proof. It can operate with any pressure of steam, but is less efficient. He taught at the École des mines de Saint-Étienne for a decade until 1897, one of the founders of the modern theory of steam and gas turbines was Aurel Stodola, a Slovak physicist and engineer and professor at the Swiss Polytechnical Institute in Zurich. His work Die Dampfturbinen und ihre Aussichten als Wärmekraftmaschinen was published in Berlin in 1903, a further book Dampf und Gas-Turbinen was published in 1922. It was used in John Brown-engined merchant ships and warships, including liners, the present-day manufacturing industry for steam turbines is dominated by Chinese power equipment makers. Other manufacturers with minor market share include Bhel, Siemens, Alstom, GE, Doosan Škoda Power, Mitsubishi Heavy Industries, the consulting firm Frost & Sullivan projects that manufacturing of steam turbines will become more consolidated by 2020 as Chinese power manufacturers win increasing business outside of China. There are several classifications for modern steam turbines, Turbine blades are of two basic types, blades and nozzles. Blades move entirely due to the impact of steam on them and this results in a steam velocity drop and essentially no pressure drop as steam moves through the blades. A turbine composed of alternating with fixed nozzles is called an impulse turbine, Curtis turbine, Rateau turbine
24.
Propeller
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A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the blade, and a fluid is accelerated behind the blade. Their disadvantages are higher mechanical complexity and higher cost, the principle employed in using a screw propeller is used in sculling. It is part of the skill of propelling a Venetian gondola but was used in a less refined way in parts of Europe. For example, propelling a canoe with a paddle using a pitch stroke or side slipping a canoe with a scull involves a similar technique. In China, sculling, called lu, was used by the 3rd century AD. In sculling, a blade is moved through an arc. The innovation introduced with the propeller was the extension of that arc through more than 360° by attaching the blade to a rotating shaft. Propellers can have a blade, but in practice there are nearly always more than one so as to balance the forces involved. The origin of the screw propeller starts with Archimedes, who used a screw to lift water for irrigation and bailing boats and it was probably an application of spiral movement in space to a hollow segmented water-wheel used for irrigation by Egyptians for centuries. Leonardo da Vinci adopted the principle to drive his theoretical helicopter, in 1784, J. P. Paucton proposed a gyrocopter-like aircraft using similar screws for both lift and propulsion. At about the time, James Watt proposed using screws to propel boats. This was not his own invention, though, Toogood and Hays had patented it a century earlier, by 1827, Czech-Austrian inventor Josef Ressel had invented a screw propeller which had multiple blades fastened around a conical base. He had tested his propeller in February 1826 on a ship that was manually driven. He was successful in using his bronze screw propeller on an adapted steamboat and his ship Civetta with 48 gross register tons, reached a speed of about six knots. This was the first ship successfully driven by an Archimedes screw-type propeller, after a new steam engine had an accident his experiments were banned by the Austro-Hungarian police as dangerous. Josef Ressel was at the time a forestry inspector for the Austrian Empire, but before this he received an Austro-Hungarian patent for his propeller. This new method of propulsion was an improvement over the paddlewheel as it was not so affected by either ship motions or changes in draft as the burned coal
25.
Knot (unit)
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The knot is a unit of speed equal to one nautical mile per hour, approximately 1.151 mph. The ISO Standard symbol for the knot is kn, the same symbol is preferred by the IEEE, kt is also common. The knot is a unit that is accepted for use with the SI. Etymologically, the term derives from counting the number of knots in the line that unspooled from the reel of a log in a specific time. 1 international knot =1 nautical mile per hour,1.852 kilometres per hour,0.514 metres per second,1.151 miles per hour,20.254 inches per second,1852 m is the length of the internationally agreed nautical mile. The US adopted the definition in 1954, having previously used the US nautical mile. The UK adopted the international nautical mile definition in 1970, having used the UK Admiralty nautical mile. The speeds of vessels relative to the fluids in which they travel are measured in knots, for consistency, the speeds of navigational fluids are also measured in knots. Thus, speed over the ground and rate of progress towards a distant point are given in knots. Until the mid-19th century, vessel speed at sea was measured using a chip log, the chip log was cast over the stern of the moving vessel and the line allowed to pay out. Knots placed at a distance of 8 fathoms -47 feet 3 inches from each other, passed through a sailors fingers, the knot count would be reported and used in the sailing masters dead reckoning and navigation. This method gives a value for the knot of 20.25 in/s, the difference from the modern definition is less than 0. 02%. On a chart of the North Atlantic, the scale varies by a factor of two from Florida to Greenland, a single graphic scale, of the sort on many maps, would therefore be useless on such a chart. Recent British Admiralty charts have a latitude scale down the middle to make this even easier, speed is sometimes incorrectly expressed as knots per hour, which is in fact a measure of acceleration. Prior to 1969, airworthiness standards for aircraft in the United States Federal Aviation Regulations specified that distances were to be in statute miles. In 1969, these standards were amended to specify that distances were to be in nautical miles. At 11000 m, an airspeed of 300 kn may correspond to a true airspeed of 500 kn in standard conditions. Beaufort scale Hull speed, which deals with theoretical estimates of maximum speed of displacement hulls Knot count Knotted cord Metre per second Orders of magnitude Rope Kemp
26.
Kilometres per hour
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The kilometre per hour is a unit of speed, expressing the number of kilometres travelled in one hour. Worldwide, it is the most commonly used unit of speed on road signs, the Dutch on the other hand adopted the kilometre in 1817 but gave it the local name of the mijl. The SI representations, classified as symbols, are km/h, km h−1 and km·h−1, the use of abbreviations dates back to antiquity, but abbreviations for kilometres per hour did not appear in the English language until the late nineteenth century. The kilometre, a unit of length, first appeared in English in 1810, kilometres per hour did not begin to be abbreviated in print until many years later, with several different abbreviations existing near-contemporaneously. For example, news organisations such as Reuters and The Economist require kph, in Australian unofficial usage, km/h is sometimes pronounced and written as klicks or clicks. The use of symbols to replace words dates back to at least the medieval era when Johannes Widman, writing in German in 1486. In the early 1800s Berzelius introduced a symbolic notation for the chemical elements derived from the elements Latin names, typically, Na was used for the element sodium and H2O for water. In 1879, four years after the signing of the Treaty of the Metre, among these were the use of the symbol km for kilometre. In 1948, as part of its work for the SI. The SI explicitly states that unit symbols are not abbreviations and are to be using a very specific set of rules. Hence the name of the unit can be replaced by a kind of algebraic symbol and this symbol is not merely an abbreviation but a symbol which, like chemical symbols, must be used in a precise and prescribed manner. SI, and hence the use of km/h has now been adopted around the world in areas related to health and safety. It is also the system of measure in academia and in education. During the early years of the car, each country developed its own system of road signs. In 1968 the Vienna Convention on Road Signs and Signals was drawn up under the auspices of the United Nations Economic, many countries have since signed the convention and adopted its proposals. The use of SI implicitly required that states use km/h as the shorthand for kilometres per hour on official documents. Examples include, Dutch, kilometer per uur, Portuguese, quilómetro por hora Greek, in 1988 the United States National Highway Traffic Safety Administration promulgated a rule stating that MPH and/or km/h were to be used in speedometer displays. On May 15,2000 this was clarified to read MPH, or MPH, however, the Federal Motor Vehicle Safety Standard number 101 allows any combination of upper- and lowercase letters to represent the units
27.
Miles per hour
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Miles per hour is an imperial and United States customary unit of speed expressing the number of statute miles covered in one hour. Miles per hour is the also used in the Canadian rail system. In some countries mph may be used to express the speed of delivery of a ball in sporting events such as cricket, tennis, road traffic speeds in other countries are indicated in kilometres per hour, while occasionally both systems are used. For example, in Ireland, a considered a speeding case by examining speeds in both kilometres per hour and miles per hour. The judge was quoted as saying the speed seemed very excessive at 180 km/h but did not look as bad at 112 mph, nautical and aeronautical applications, however, favour the knot as a common unit of speed. 1 Mph =0.000277778 Mps Example, Apollo 11 attained speeds of 25,000 Mph, if Apollo 11 were to travel at 25,000 Mph from New York to Los Angeles it would reach Los Angeles in under 6 minutes
28.
Landing Craft Mechanized
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The landing craft mechanized also landing craft mechanical is a landing craft designed for carrying vehicles. They came to prominence during the Second World War when they were used to land troops or tanks during Allied amphibious assaults. There was no design of LCM used, unlike the landing craft, vehicle, personnel or landing craft assault landing craft made by the US. There were several different designs built by the UK and US, the British motor landing craft was conceived and tested in the 1920s and was used from 1924 in exercises. It was the first purpose built landing craft. It was the progenitor of all subsequent LCM designs, the landing craft, mechanised Mark I was an early British model. It was able to be slung under the davits of a liner or on a cargo ship boom with the result that it was limited to a 16-ton tank, the LCM Mark I was used during the Allied landings in Norway, and at Dieppe and some 600 were built. Displacement,35 tonnes Length,13.6 m Width,4.27 m Draught,1.22 m Machinery, approximately 150 were built by American Car & Foundry and Higgins Industries. A Higgins LCM-3 is on display at the Battleship Cove maritime museum in Fall River, outwardly, the LCM was almost completely identical to a late model LCM - the difference lay inside the pontoon. Here special bilge pumps and special ballast tanks allowed the LCM to alter trim to increase stability when partially loaded, British model of LCM An LCM extended by 6 feet amidships. Many were later adapted as armoured troop carriers for the Mobile Riverine Force in the Vietnam War, power plant,2 Detroit 6-71 diesel engines,348 hp sustained, twin shaft, or 2 Detroit 8V-71 diesel engines,460 hp sustained, twin shaft Length,56
29.
LCPL
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The Landing Craft Personnel or LCP was a landing craft used extensively in the Second World War. Its primary purpose was to ferry troops from ships to attack enemy-held shores. The craft derived from a prototype designed by the Eureka Tug-Boat Company of New Orleans, Louisiana, manufactured initially in boatyards in and around New Orleans, as requirements grew it was produced in a number of yards around the United States. Typically constructed of planks and plywood, and fitted with some armor plate. Men generally entered the boat by walking over a gangplank from the deck of their troop transport as the LCP hung from its davits. When loaded, the LCP was lowered into the water, soldiers exited the boat by jumping or climbing down from the craft’s bow or sides. During the 1930s, the United States Marine Corps sought boats practical for landing troops on beaches, in 1936, the USMC conducted experiments with new types of boats, lighters, and launches. Many craft were considered coming from the Navy’s Bureau as well as fishing boat designs. Included in these experiments were some prototypes where, upon beaching, the craft was based on the company’s 1926 spoonbill-bowed craft used by trappers in the bayous of the Mississippi River delta. The boat’s draft was rather shallow,18 inches, and it could cut through vegetation and it could also run up on shore and extract itself damage-free. As part of demonstrations, boats were often run up on the seawalls of Lake Pontchartrain. The Marines specifications at the time were for boats operated by a crew of 6 that could carry a squad of 12 men, such boats should be able to achieve 15 knots, and to be hoisted on the US Navys standard davits. He produced the 32 feet Eureka or Higgins boat and this was the craft first used in American Fleet Landing Exercises in 1941. Before the USMC received their boats, the British Admiralty’s need for a raiding craft brought the first enquiries for a larger boat. Purchasing agents from Britain had become aware of Andrew Higgins’ Eureka boats, enquiries were made, the German occupation of France had changed British procurement plans dramatically. An initial order for 136 was placed, and the first 50 were delivered to Britain in October 1940, Higgins had already built these boats on spec and is said to have preferred this larger craft. Further US procurements were of this boat, and thus the LCP was the forerunner of all American LCP types. The LCPs were also known as Eurekas or R boats, before 1942, The USMC referred to them as T Boats
30.
LCVP (United States)
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The landing craft, vehicle, personnel or Higgins boat was a landing craft used extensively in amphibious landings in World War II. The craft was designed by Andrew Higgins based on boats made for operating in swamps, more than 20,000 were built, by Higgins Industries and licensees. Typically constructed from plywood, this shallow-draft, barge-like boat could ferry a platoon-sized complement of 36 men to shore at 9 knots. Men generally entered the boat by climbing down a cargo net hung from the side of their troop transport, they exited by charging down the boats bow ramp. Satisfactory in most respects, the major drawback appeared to be that equipment had to be unloaded. However, it was put into production and service as the craft, personnel. The LCP had two gun positions at the bow. The LCP, commonly called the U-boat or the Higgins boat, was supplied to the British, to whom it was known as the R-boat. Within one month, tests of the ramp-bow Eureka boat in Lake Pontchartrain showed conclusively that successful operation of such a boat was feasible and this boat became the Landing Craft, Personnel or LCP. The machine gun positions were still at the front of the boat, the design was still not ideal, because the ramp was a bottleneck for the troops, as was the case with the British Landing Craft Assault of the year before. The next step was to fit a full-width ramp, now troops could leave en masse and a small vehicle such as a Jeep could be carried, this new version became the LCVP, or simply, the Higgins boat. The machine gun positions were moved to the rear of the boat, at just over 36 ft long and just under 11 ft wide, the LCVP was not a large craft. Powered by a 225-horsepower Diesel engine at 12 knots, it would sway in choppy seas, since its sides and rear were made of plywood, it offered limited protection from enemy fire. The Higgins boat could hold either a 36-man platoon, a jeep and its shallow draft enabled it to run up onto the shoreline, and a semi-tunnel built into its hull protected the propeller from sand and other debris. The steel ramp at the front could be lowered quickly and it was possible for the Higgins boat to swiftly disembark men and supplies, reverse itself off the beach, and head back out to the supply ship for another load within three to four minutes. If Higgins had not designed and built those LCVPs, we never could have landed over an open beach, the whole strategy of the war would have been different. Only a few Higgins boats have survived, often with modifications for post-War use. A remarkably preserved Higgins boat, with the original Higgins motor, was discovered in a yard in Valdez, Alaska
31.
Captain's gig
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The captains gig /ˈɡɪɡ/ is a boat used on naval ships as the captains taxi. In general, during the era of wooden ships, it was smaller and lighter than the longboat and it was usually crewed by four oarsmen, and a coxswain. Generally the oarsmen sat one to a seat, but each only rowed a single oar on alternating sides, the gig was not as sea kindly as the longboat, but was used mostly in harbors. The gigs generally had a high wineglass transom, full skeg, full keel, straight stem, there was in general very little rocker in the keel. The gunwales on many were nearly straight from bow to stern and it appears to be the precursor to the Whitehall Rowboat. Some wooden captains gigs were quite large and were powered by sail, with the coming of metal ships and combustion engines the size of the captains gig increased and the boats could transport more sailors swiftly. Some modern built craft with sails have been named captains gig as well and these boats were typically painted with a white superstructure and gray hull with a red waterline stripe and black hull below the waterline. They would also frequently have the parent ships hull number marked on the port, in early 2008, in an economy move, Captains Gigs were eliminated from all U. S. Navy aircraft carriers. In science fiction, the term is used to refer to a small auxiliary spacecraft. In Star Trek, the craft are referred to as a captains yacht, cornish pilot gig, a larger boat which used to be used to transport pilots out to ships
32.
Deadweight tonnage
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Deadweight tonnage or tons deadweight is a measure of how much mass a ship is carrying or can safely carry, it does not include the weight of the ship. DWT is the sum of the weights of cargo, fuel, fresh water, ballast water, provisions, passengers, DWT is often used to specify a ships maximum permissible deadweight, although it may also denote the actual DWT of a ship not loaded to capacity. Deadweight tonnage is a measure of a weight carrying capacity. It should not be confused with displacement which includes the ships own weight, nor other volume or capacity measures such as gross tonnage or net tonnage
33.
5"/38 caliber gun
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The Mark 12 5/38 caliber gun was a US naval gun. The gun was installed into Single Purpose and Dual Purpose mounts used primarily by the US Navy, the 38 caliber barrel was a mid-length compromise between the previous United States standard 5/51 low-angle gun and 5/25 anti-aircraft gun. The increased barrel length provided greatly improved performance in both anti-aircraft and anti-surface roles compared to the 5/25 gun, however, except for the barrel length and the use of semi-fixed ammunition, the 5/38 gun was derived from the 5/25 gun. Both weapons had power ramming, which enabled rapid fire at high angles against aircraft, the 5/38 entered service on USS Farragut, commissioned in 1934. The base ring mount, which improved the rate of fire, entered service on USS Gridley. Even this advanced system required nearly 100 rounds of ammunition expenditure per aircraft kill, however, the planes were normally killed by shell fragments and not direct hits, barrage fire was used, with many guns firing in the air at the same time. Base ring mounts with integral hoists had a rate of fire of 15 rounds per minute per barrel, however. On pedestal and other mounts lacking integral hoists,12 to 15 rounds per minute was the rate of fire, useful life expectancy was 4600 effective full charges per barrel. The 5/38 cal gun was mounted on a large number of US Navy ships in the World War II era. It was backfitted to many of the World War I-era battleships during their wartime refits and it has left active US Navy service, but it is still on mothballed ships of the United States Navy reserve fleets. It is also used by a number of nations who bought or were given US Navy surplus ships, each mount carries one or two Mk 12 5/38cal Gun Assemblies. The gun assembly shown is used in single mounts, and it is the gun in twin mounts. It is loaded from the left side, the left gun in twin mounts is the mirror image of the right gun, and it is loaded from the right side. The Mk12 gun assembly weighs 3,990 lb, the major Mk12 Gun Assembly characteristics are,158 Semi-automatic During recoil, some of the recoil energy is stored in the counter-recoil system. That stored energy is used during counter-recoil to prepare the gun for the next round, the firing pin is cocked, the breech is opened, the spent powder case is ejected, and the bore is air cleaned. Hand loaded A Projectile-Man and a Powder-Man are stationed at each gun assembly and their job is to move the round, consisting of a projectile and a powder case, from the hoists to the rammer tray, and then start the ram cycle. The hydraulically driven Rammer Spade, called the Power Spade in that picture, is at the back of the Rammer Tray, if the multiple names of the Spade is confusing, look at this footnote. Vertical sliding-wedge breech block The breech block closes the chamber behind the powder case and it also holds the firing pin assembly
34.
Caliber (artillery)
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In artillery, caliber or calibre is the internal diameter of a gun barrel, or by extension a relative measure of the length. Rifled barrels introduce ambiguity to measurement of caliber, a rifled bore consists of alternating grooves and lands. The distance across the bore from groove to groove is greater than the distance from land to land, the depth of rifling grooves increases in larger calibers. United States Navy guns typically used rifling depth between one-half and one percent of caliber, projectile bourrelet diameter specification was 0.015 inches less than land to land diameter with a minus manufacturing tolerance so average clearance was about 0.012 inches. Driving band diameter was groove to groove diameter plus 0.02 inches, the length of the barrel is often quoted in calibers. For example, US Naval Rifles 3 in or larger, the effective length of the barrel is divided by the barrel diameter to give a dimensionless quantity.81 As an example, the main guns of the Iowa-class battleships can be referred to as 16/50 caliber. They are 16 inches in diameter and the barrel is 800 inches long, the bore to barrel length ratio is called caliber in naval gunnery,81 but is called length in army artillery. Before World War II, the US Navy used 5/51 caliber as surface-to-surface guns, by the end of World War II, the dual purpose 5/38 caliber was standard naval armament against surface and air targets. All three had a diameter of 5 inches. At sea, a weapon had to perform, without fail, there was no ready replacement, nor one that could be readily supplied. Over time, the terms of pound and bore became confused and blurred, eventually, when the technology existed, the bore came to be the standard measure. For naval rifles, the change was to actual bore. They then began to measure the length of the weapon in calibers. These were a measure of the bore of the barrel versus the rifled bore of the barrel. In other words, a 12/45 is 12×45= the length of the bore of that gun in inches. This explains the differences in both penetration and long range performance of naval rifles over the years. In addition to the improvements in overall performance, the increase in barrel length also allowed, in some circumstances. For example, the American 14/45, as introduced in the New York-class battleships, later improvements to the design, lengthening the rifle itself and also altering the breech, allowed a 1400 lb. projectile and, overall, a greater barrel life
35.
Dual-purpose gun
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A dual-purpose gun is a naval artillery mounting designed to engage both surface and air targets. The light A/A was dispersed throughout the ship and included both automatic cannons and heavy machine guns and they discarded the dedicated, anti-ship secondary batteries altogether, because a battle-line fleet would be screened against cruiser and destroyers most of the time. Rather, they replaced them with turret-mounted dual-purpose guns that could be used against both aircraft and ships and this arrangement was seen as more efficient, and was deemed adequate to meet anti-surface and anti-aircraft needs under most circumstances. Both navies were concerned of close-range torpedo attacks from enemy destroyers and torpedo boats, the French Navy used a mixed-calibre system, as well, but their secondary battery was dual-purpose. This tended to complicate ammunition supplies and render certain armament useless in some situations, dual-purpose guns are designed as a compromise between the heavy main armament of a surface combatant and dedicated anti-aircraft guns. Usually of a caliber, the gun is heavy enough to prove useful against surface targets including ships, surfaced submarines. For example, a Royal Navy battleship of the King George V class had sixteen QF Mark I5. 25-inch guns that could engage enemy ships or high level aircraft. Not all dual-purpose guns have high elevation, the determining factor was whether or not the mounting was provided with an anti-aircraft fire control system and a method for setting the time fuze in the A. A. warhead, fired by the gun. Starting with the Tribal class, the Royal Navy introduced a series of classes that had dual-purpose guns. XIX and later mountings limited to 40,50 or 55 degrees elevation, however, the guns were controlled by an A. A. fire control system, fire control and no on-mount fuze setters. Admiral Sir Philip Vian describes the use of 4, there was too little sea-room for full freedom of manoeuvre, and the aircrafts approach was screened by the rock walls. Junkers attacks persisted to the end, but the fire of the destroyers, not a ship received a direct hit, though some were damaged by the splinters from near misses. Dual-purpose guns, often abbreviated to DP guns, were designed as a secondary armament for large surface ships such as cruisers. Most DP mounted guns have calibers in the range from three to five inches, in British service the term HA/LA for High Angle/Low Angle was used
36.
Bofors 40 mm gun
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The Bofors 40 mm gun, often referred to simply as the Bofors gun, is an anti-aircraft/multi-purpose autocannon designed in the 1930s by the Swedish arms manufacturer AB Bofors. It was one of the most popular medium-weight anti-aircraft systems during World War II, a small number of these weapons remain in service to this day, and saw action as late as the Gulf War. In the post-war era the original design was not suitable for action against jet powered aircraft, so Bofors introduced a new model of more power. In spite of sharing almost nothing with the design other than the calibre and the distinctive conical flash hider. Although not as popular as the original L/60 model, the L/70 remains in service to this day, especially as a weapon for light armored vehicles. Bofors itself has been part of BAE Systems AB since March 2005, the Swedish Navy purchased a number of 2 pounder Pom-Poms from Vickers as anti-aircraft guns in 1922. The Navy approached Bofors about the development of a capable replacement. Bofors signed a contract in late 1928, Bofors produced a gun that was a smaller version of a 57 mm semi-automatic gun developed as an anti-torpedo boat weapon in the late 19th century by Finspong. Their first test gun was a re-barreled Nordenfelt version of the Finspong gun, testing of this gun in 1929 demonstrated that a problem existed feeding the weapon in order to maintain a reasonable rate of fire. A mechanism that was enough to handle the stresses of moving the large round was too heavy to move quickly enough to fire rapidly. One attempt to solve this problem used zinc shell cases that burned up when fired and this proved to leave heavy zinc deposits in the barrel, and had to be abandoned. This seemed to be the solution they needed, improving firing rates to a level. During this period Krupp purchased a share of Bofors. Krupp engineers started the process of updating the Bofors factories to use equipment and metallurgy. The prototype was completed and fired in November 1931, and by the middle of the month it was firing strings of two and three rounds. Changes to the mechanism were all that remained, and by the end of the year it was operating at 130 rounds per minute. Continued development was needed to turn it into a suitable for production. Since acceptance trials had been passed the year before, this known as the 40 mm akan M/32
37.
Anti-aircraft warfare
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Anti-aircraft warfare or counter-air defence is defined by NATO as all measures designed to nullify or reduce the effectiveness of hostile air action. They include ground-and air-based weapon systems, associated sensor systems, command and control arrangements and it may be used to protect naval, ground, and air forces in any location. However, for most countries the main effort has tended to be homeland defence, NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence as are initiatives to adapt air defence to the task of intercepting any projectile in flight, a surface-based air defence capability can also be deployed offensively to deny the use of airspace to an opponent. Until the 1950s, guns firing ballistic munitions ranging from 20 mm to 150 mm were the weapons, guided missiles then became dominant. The term air defence was probably first used by Britain when Air Defence of Great Britain was created as a Royal Air Force command in 1925. However, arrangements in the UK were also called anti-aircraft, abbreviated as AA, after the First World War it was sometimes prefixed by Light or Heavy to classify a type of gun or unit. Nicknames for anti-aircraft guns include AA, AAA or triple-A, an abbreviation of anti-aircraft artillery, ack-ack, NATO defines anti-aircraft warfare as measures taken to defend a maritime force against attacks by airborne weapons launched from aircraft, ships, submarines and land-based sites. In some armies the term All-Arms Air Defence is used for air defence by nonspecialist troops, other terms from the late 20th century include GBAD with related terms SHORAD and MANPADS. Anti-aircraft missiles are variously called surface-to-air missile, abbreviated and pronounced SAM, non-English terms for air defence include the German FlaK, whence English flak, and the Russian term Protivovozdushnaya oborona, a literal translation of anti-air defence, abbreviated as PVO. In Russian the AA systems are called zenitnye systems, in French, air defence is called DCA. The maximum distance at which a gun or missile can engage an aircraft is an important figure, however, many different definitions are used but unless the same definition is used, performance of different guns or missiles cannot be compared. For AA guns only the part of the trajectory can be usefully used. By the late 1930s the British definition was that height at which an approaching target at 400 mph can be engaged for 20 seconds before the gun reaches 70 degrees elevation. However, effective ceiling for heavy AA guns was affected by nonballistic factors, The maximum running time of the fuse, the capability of fire control instruments to determine target height at long range. The essence of air defence is to detect aircraft and destroy them. The critical issue is to hit a target moving in three-dimensional space, Air defence evolution covered the areas of sensors and technical fire control, weapons, and command and control. At the start of the 20th century these were very primitive or non-existent
38.
Oerlikon 20 mm cannon
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The Oerlikon 20 mm cannon is a series of autocannons, based on an original German 20 mm Becker design that appeared very early in World War I. It was widely produced by Oerlikon Contraves and others, with various models employed by both Allied and Axis forces during World War II, and many still in use today. During World War I, the German Reinhold Becker developed a 20 mm caliber cannon and this used a 20x70 RB cartridge and had a cyclic rate of fire of 300 rpm. It was used on a scale as an aircraft gun on Luftstreitkräfte warplanes. Because the Treaty of Versailles banned further production of weapons in Germany. SEMAG continued development of the weapon, and in 1924 had produced the SEMAG L, the Oerlikon firm, named after the Zürich suburb where it was based, then acquired all rights to the weapon, plus the manufacturing equipment and the employees of SEMAG. In 1927 the Oerlikon S was added to the product line. This fired a larger cartridge to achieve a muzzle velocity of 830 m/s, at the cost of increased weight. The purpose of development was to improve the performance of the gun as an anti-tank and anti-aircraft weapon. An improved version known as the 1S followed in 1930, three sizes of gun with their different ammunition and barrel length, but very similar mechanisms, continued to be developed in parallel. In 1930 Oerlikon reconsidered the application of its gun in aircraft and introduced the AF and AL, designed to be used in flexible mounts, the 15-round box magazine used by earlier versions of the gun was replaced by drum magazine holding 15 or 30 rounds. In 1935 it made an important step by introducing a series of guns designed to be mounted in or on the wings of fighter aircraft, designated with FF for Flügelfest meaning wing-mounted, these weapons were again available in the three sizes, with designations FF, FFL and FFS. The FF fired a larger cartridge than the AF, 20x72RB. The FF weighed 24 kg and achieved a velocity of 550 to 600 m/s with a rate of fire of 520 rpm. The FFL of 30 kg fired a projectile at a velocity of 675 m/s with a rate of fire of 500 rpm. And the FFS, which weighed 39 kg, delivered a high velocity of 830 m/s at a rate of fire of 470 rpm. Apart from changes to the design of the guns for wing-mounting and remote control, for the FF series drum sizes of 45,60,75 and 100 rounds were available, but most users chose the 60-round drum. The 1930s were a period of global re-armament, and a number of foreign firms took licenses for the Oerlikon family of aircraft cannon
39.
Battle of Okinawa
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The 82-day-long battle lasted from 1 April until 22 June 1945. The Tenth was unique in that it had its own air force. The battle has been referred to as the typhoon of steel in English, the nicknames refer to the ferocity of the fighting, the intensity of Japanese kamikaze attacks, and the sheer numbers of Allied ships and armored vehicles that assaulted the island. The battle was one of the bloodiest in the Pacific, with an total of over 82,000 direct casualties on both sides,14,009 Allied deaths and 77,417 Japanese soldiers. Allied grave registration forces counted 110,071 dead bodies of Japanese soldiers,149,425 Okinawans were killed, committed suicide or went missing, a significant proportion of the estimated pre-war 300,000 local population. As part of the operations surrounding the battle, the Japanese battleship Yamato was sunk. After the battle, Okinawa provided an anchorage, troop staging areas. Expeditionary Troops under Lieutenant General Simon Bolivar Buckner, Jr. with Tenth Army, TF56 was the largest force within TF50 and was built around the 10th Army. The army had two corps under its command, III Amphibious Corps, consisting of 1st and 6th Marine Divisions, the 2nd Marine Division was an afloat reserve, and Tenth Army also controlled the 27th Infantry Division, earmarked as a garrison, and 77th Infantry Divisions. In all, the Army had over 102,000 soldiers, at the start of Battle of Okinawa 10th Army had 182,821 men under its command. It was planned that General Buckner would report to Turner until the phase was completed. Although Allied land forces were composed of U. S. units. Although all the carriers were provided by Britain, the carrier group was a combined British Commonwealth fleet with British, Canadian, New Zealand and Australian ships. Their mission was to neutralize Japanese airfields in the Sakishima Islands, most of the air-to-air fighters and the small dive bombers and strike aircraft were U. S. Navy carrier-based airplanes. The Japanese land campaign was conducted by the 67, 000-strong regular 32nd Army and some 9,000 Imperial Japanese Navy troops at Oroku naval base, supported by 39,000 drafted local Ryukyuan people. The Japanese had used kamikaze tactics since the Battle of Leyte Gulf, between the American landing on 1 April and 25 May, seven major kamikaze attacks were attempted, involving more than 1,500 planes. The 32nd Army initially consisted of the 9th, 24th, and 62nd Divisions, the 9th Division was moved to Taiwan prior to the invasion, resulting in shuffling of Japanese defensive plans. Primary resistance was to be led in the south by Lt. General Mitsuru Ushijima, his chief of staff, Lieutenant General Isamu Chō and his chief of operations, Yahara advocated a defensive strategy, whilst Chō advocated an offensive one
40.
Battle of Inchon
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The Battle of Inchon was an amphibious invasion and battle of the Korean War that resulted in a decisive victory and strategic reversal in favor of the United Nations. The operation involved some 75,000 troops and 261 naval vessels, the code name for the operation was Operation Chromite. The battle began on 15 September 1950 and ended on 19 September, the battle ended a string of victories by the invading North Korean Peoples Army. The subsequent UN recapture of Seoul partially severed the NKPAs supply lines in South Korea, the United Nations and South Korean forces were commanded by General of the Army Douglas MacArthur of the United States Army. MacArthur was the force behind the operation, overcoming the strong misgivings of more cautious generals to a risky assault over extremely unfavorable terrain. The North Korean strategy was to aggressively pursue U. N, from their initial 25 June offensive to fights in July and early August, the North Koreans used this tactic to defeat any UN force they encountered and push it south. When the North Koreans approached the Pusan Perimeter on 5 August, on the east coast of the Korean Peninsula, the South Koreans repulsed three North Korean divisions at the Battle of Pohang-dong. The North Korean attacks stalled as U. N. forces, well equipped and with reserve units to draw upon. All along the front, the North Korean troops reeled from these defeats, by the end of August the North Korean troops had been pushed beyond their limits and many of the original units were at far reduced strength and effectiveness. Logistic problems racked the North Korean army, and shortages of food, weapons, equipment, however, the North Korean force retained high morale and enough supply to allow for another large-scale offensive. The attack caught U. N. forces by surprise and almost overwhelmed them, North Korean troops attacked Kyongju, surrounded Taegu and Ka-san, recrossed the Naktong Bulge, threatened Yongsan, and continued their attack at Masan, focusing on Nam River and Haman. However, despite their efforts, in one of the most brutal fights of the Korean War, unable to hold their gains, the North Korean army retreated from the offensive a much weaker force, and vulnerable to counterattack. Days after the beginning of the war, General of the Army Douglas MacArthur, the city had fallen in the first days of the war in the First Battle of Seoul. MacArthur later wrote that he thought the North Korean army would push the Republic of Korea Army back far past Seoul. MacArthur felt that he could turn the tide if he made a troop movement behind enemy lines. He had originally envisioned such a landing, code named Operation Bluehearts, for 22 July, however, by 10 July the plan was abandoned as it was clear the 1st Cavalry Division would be needed on the Pusan Perimeter. MacArthur decided instead to use the U. S. Armys 7th Infantry Division, his last reserve unit in East Asia, in preparation for the invasion, MacArthur activated the U. S. Throughout August, MacArthur faced the challenge of re-equipping the 7th Infantry Division as it had sent 9,000 of its men to reinforce the Pusan Perimeter and was far understrength and he also faced the challenge that the U. S. S
41.
Navy Unit Commendation
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The Navy Unit Commendation is a United States Navy unit award that was established by order of the Secretary of the Navy James Forrestal on 18 December 1944. Normal performance of duty or participation in a number of combat missions does not, in itself. An award will not be made to a unit for actions of one or more of its component parts, unless the unit performed uniformly as a team, the NUC may be conferred upon the armed forces of friendly foreign nations serving with the U. S. Armed Forces, provided such units meet the established for Navy. Additional awards of the Navy Unit Commendation are denoted by 3⁄16 inch bronze stars, Military awards of the United States Armed Forces Military awards of the United States Department of the Navy An official Navy Unit Commendation, 2004-2005
42.
China Service Medal
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The China Service Medal was a service medal awarded to U. S. Navy, Marine Corps, and Coast Guard personnel. The medal was instituted by Navy Department General Order No.176 on 1 July 1942, the medal recognized service in and around China before and after World War II. Served ashore in China or who were attached to any of the vessels operated in support of the operations in China between 7 July 1937, and 7 September 1939. 1. The commemorative purposes for which the China Service Medal was established and authorized by General Order No, served ashore in China or were attached to any of the vessels that operated in support of operations in China between September 2,1945 and April 1,1957. Regulations permit the wearing of a service star if a service member had performed duty during both periods of eligibility. The China Service Medal is no longer awarded by the United States Navy, designed by American sculptor George Holburn Snowden, the medal is bronze,1.25 inches in diameter. The center of the bears a three-sailed Chinese junk borne upon scroll waves. The boat is surrounded by the inscription in relief China Service, the reverse of the medal bears a bald eagle facing left. The eagle clutches laurels while perched on the shank of an anchor with its flukes to the right. On the left side of the eagle is the word For, arching above the eagle is one of two inscriptions United States Navy for the version awarded to sailors or United States Marine Corps for the version awarded to marines. The suspension ribbon, and service ribbon, for the medal is gold with red stripes at either side, awards and decorations of the United States military Yangtze Service Medal
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American Campaign Medal
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The American Campaign Medal is a military award of the United States Armed Forces which was first created on November 6,1942 by Executive Order 9265 issued by President Franklin D. Roosevelt. The medal was intended to recognize those military members who had performed military service in the American Theater of Operations during World War II. A similar medal, known as the American Defense Service Medal was awarded for active duty prior to the United States entry into World War II. The American Campaign Medal was established per Executive Order 9265,6 November 1942, by President Franklin D. Roosevelt and announced in War Department Bulletin 56,1942. The criteria was initially announced in Department of the Army Circular 1, dated 1 January 1943, the criteria for the medal was announced in DA Circular 84, dated 25 March 1948 and subsequently published in Army Regulation 600-65, dated 22 September 1948. The American Campaign Medal was issued as a ribbon only during the Second World War. The first recipient of the American Campaign Medal was General of the Army George C, marshall, Jr. Permanently assigned as a member of a crew of a vessel sailing ocean waters for a period of 30 consecutive days or 60 nonconsecutive days. Outside the continental limits of the United States in a status or on temporary duty for 30 consecutive days or 60 nonconsecutive days. Within the continental limits of the United States for a period of 1 year. The medal, made of bronze, is 1 1/4 inches wide, the obverse was designed by Thomas Hudson Jones. It shows a Navy cruiser underway with a B-24 Liberator bomber flying overhead, in the foreground is a sinking enemy submarine, and in the background is the skyline of a city. At the top of the medal are the words AMERICAN CAMPAIGN and it depicts an American bald eagle between the dates 1941 -1945 and the words UNITED STATES OF AMERICA. The ribbon is 1 3/8 inches wide in oriental blue in the center is a 1/8 inch center stripe divided into thirds of old glory blue, white, between the center and the edges are stripes of 1/16 inch in white, black, scarlet and white. 3/16 inch service stars were authorized to service members who participated in combat with Axis forces within the American Theater and this primarily applied to those service members whose units participated in anti-U-Boat patrols in the Atlantic. To qualify individuals must have been assigned to or attached to, and present for duty with, a complete guide to all United States military medals,1939 to present. Robles, Philip K. United States military medals and ribbons
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World War II Victory Medal (United States)
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The World War II Victory Medal was first issued as a service ribbon referred to as the “Victory Ribbon. ”By 1946, a full medal had been established which was referred to as the World War II Victory Medal. The corresponding medal from the World War I is the World War I Victory Medal, on 8 August 1946, the separate Merchant Marine World War II Victory Medal was established for members of the United States Merchant Marine who served during World War II. The medal is awarded for service between 7 December 1941 and 31 December 1946, both dates inclusive, the National Personnel Records Center has reported some cases of service members receiving the award for simply a few days of service. As the Second World War ended on 2 September 1945, there may be cases of members who had enlisted, entered officer candidate school. Military Academy, the U. S. Naval Academy or the U. S. Coast Guard Academy in 1946, the reason for this late date is that President Harry S. Truman did not declare an official end of hostilities until the last day of 1946. The bronze medal is 1 3⁄8 inches in width, the rainbow on each side of the ribbon is a miniature of the pattern used in the World War I Victory Medal. Although the World War I Victory Medal included clasps, the World War II Victory Medal did not and this was because campaign medals were frequently awarded instead. Awards and decorations of the United States military Merchant Marine World War II Victory Medal United States Statutes at Large, washington, DC, Office of the Federal Register. Washington, DC, Office of the Federal Register, navPers 15,790, Navy and Marine Corps Awards Manual. Washington, DC, Department of the Navy, mIL-DTL-3943/237A, Detail Specification Sheet — Medal, World War II Victory. MIL-DTL-11589/149E, Detail Specification Sheet — Ribbon, World War II Victory Medal, fort Belvoir, Virginia, The Institute of Heraldry, U. S. Army. Archived from the original on September 9,2009
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Navy Occupation Service Medal
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The medal was also bestowed to personnel who performed duty in West Berlin between 1945 and 1990. No more than one Navy Occupation Service Medal may be awarded to an individual, the Army of Occupation Medal is the equivalent of the Navy Occupation Service Medal. No person could receive both the Army and Navy occupation medals, the medal was designed by A. A. Weinman. It depicts Neptune riding a Hippocampus with the words Occupation Service, the reverse has the words United States Navy and is the same as that of the Dominican Campaign Medal. The medal is authorized two service clasps, Europe and Asia, the clasps are rectangular with a rope border. If eligible, both clasps may be worn on the medal, the Berlin Airlift Device is also authorized to those Naval personnel who have served 90 days or more with an accredited unit in support of the Berlin Airlift between 1948 and 1949. The following geographical duty areas, and time frames of eligibility, the Asia clasp was authorized for any service performed on shore or on ships in the following geographical duty areas and time frames of eligibility. Service after June 27,1950 which is eligible towards the criteria for the Korean Service Medal may not be considered for the Occupation Service Medal. Army of Occupation Medal Awards and decorations of the United States military Navy History & Heritage Command-Navy Occupation Service Medal SECNAVINST1650. 1H Chapter 8, § 3-831-5
United States
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