1.
Morris Heights, Bronx
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Morris Heights is a residential neighborhood located in the West Bronx. The neighborhood is part of Bronx Community Board 5, university Avenue is the primary thoroughfare through Morris Heights. The local subway is the IRT Jerome Avenue Line, operating along Jerome Avenue, ZIP codes include 10453 and 10452. The area is patrolled by the 46th Precinct located at 2120 Ryer Avenue in Fordham, New York City Housing Authority property in the area is patrolled by P. S. A. 7 at 737 Melrose Avenue in the Melrose section of the Bronx, Morris Heights has a population of around 36,779. Almost half the population lives below the poverty line and receives public assistance, the vast majority of residents in the area are of Puerto Rican, Dominican, or African American descent. The majority of households are renter occupied, Morris Heights is dominated by 5 and 6-story tenement buildings, older multi-unit homes, vacant lots, and newly constructed subsidized attached multi-unit townhouses and apartment buildings. A significant percentage of the early 20th century housing stock was damaged by arson. The neighborhood contains one of the highest concentrations of NYCHA projects in the Bronx, the total land area is less than half one square mile. The terrain is elevated and very hilly, stair streets connect areas located at different elevations. Ten NYCHA developments are located in Morris Heights, harrison Avenue Rehab, one, 5-story rehabilitated tenement building. Harrison Avenue Rehab, four rehabilitated buildings,5 and 6-stories tall, macombs Road, two rehabilitated buildings,5 and 6-stories tall. Morris Heights Rehab, three rehabilitated tenement buildings,5 and 6-stories tall Sedgewick Houses, seven buildings,14, university Avenue Rehab, four, 6-story rehabilitated tenement buildings. West Tremont Avenue-Sedgwick Avenue Area, one, 12-story building, West Tremont Rehab, two rehabilitated tenement buildings,5 and 6-stories tall. West Tremont Rehab, one, 5-story rehabilitated tenement building, West Tremont Rehab, two, 6-story rehabilitated tenement buildings. After a wave of arson ravaged the low-income communities of New York City throughout the 1970s, the city began to rehabilitate many formerly abandoned tenement-style apartment buildings and designate them low-income housing beginning in the late 1970s. Also many subsidized attached multi-unit townhouses and newly constructed apartment buildings have been or are being built on vacant lots across the neighborhood, Morris Heights is believed to be the site where Hip Hop culture originated in the 1970s
2.
New York City
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The City of New York, often called New York City or simply New York, is the most populous city in the United States. With an estimated 2015 population of 8,550,405 distributed over an area of about 302.6 square miles. Located at the tip of the state of New York. Home to the headquarters of the United Nations, New York is an important center for international diplomacy and has described as the cultural and financial capital of the world. Situated on one of the worlds largest natural harbors, New York City consists of five boroughs, the five boroughs – Brooklyn, Queens, Manhattan, The Bronx, and Staten Island – were consolidated into a single city in 1898. In 2013, the MSA produced a gross metropolitan product of nearly US$1.39 trillion, in 2012, the CSA generated a GMP of over US$1.55 trillion. NYCs MSA and CSA GDP are higher than all but 11 and 12 countries, New York City traces its origin to its 1624 founding in Lower Manhattan as a trading post by colonists of the Dutch Republic and was named New Amsterdam in 1626. The city and its surroundings came under English control in 1664 and were renamed New York after King Charles II of England granted the lands to his brother, New York served as the capital of the United States from 1785 until 1790. It has been the countrys largest city since 1790, the Statue of Liberty greeted millions of immigrants as they came to the Americas by ship in the late 19th and early 20th centuries and is a symbol of the United States and its democracy. In the 21st century, New York has emerged as a node of creativity and entrepreneurship, social tolerance. Several sources have ranked New York the most photographed city in the world, the names of many of the citys bridges, tapered skyscrapers, and parks are known around the world. Manhattans real estate market is among the most expensive in the world, Manhattans Chinatown incorporates the highest concentration of Chinese people in the Western Hemisphere, with multiple signature Chinatowns developing across the city. Providing continuous 24/7 service, the New York City Subway is one of the most extensive metro systems worldwide, with 472 stations in operation. Over 120 colleges and universities are located in New York City, including Columbia University, New York University, and Rockefeller University, during the Wisconsinan glaciation, the New York City region was situated at the edge of a large ice sheet over 1,000 feet in depth. The ice sheet scraped away large amounts of soil, leaving the bedrock that serves as the foundation for much of New York City today. Later on, movement of the ice sheet would contribute to the separation of what are now Long Island and Staten Island. The first documented visit by a European was in 1524 by Giovanni da Verrazzano, a Florentine explorer in the service of the French crown and he claimed the area for France and named it Nouvelle Angoulême. Heavy ice kept him from further exploration, and he returned to Spain in August and he proceeded to sail up what the Dutch would name the North River, named first by Hudson as the Mauritius after Maurice, Prince of Orange
3.
United States Navy
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The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U. S. Navy is the largest, most capable navy in the world, the U. S. Navy has the worlds largest aircraft carrier fleet, with ten in service, two in the reserve fleet, and three new carriers under construction. The service has 323,792 personnel on duty and 108,515 in the Navy Reserve. It has 274 deployable combat vessels and more than 3,700 operational aircraft as of October 2016, the U. S. Navy traces its origins to the Continental Navy, which was established during the American Revolutionary War and was effectively disbanded as a separate entity shortly thereafter. It played a role in the American Civil War by blockading the Confederacy. It played the role in the World War II defeat of Imperial Japan. The 21st century U. S. Navy maintains a global presence, deploying in strength in such areas as the Western Pacific, the Mediterranean. The Navy is administratively managed by the Department of the Navy, the Department of the Navy is itself a division of the Department of Defense, which is headed by the Secretary of Defense. The Chief of Naval Operations is an admiral and the senior naval officer of the Department of the Navy. The CNO may not be the highest ranking officer in the armed forces if the Chairman or the Vice Chairman of the Joint Chiefs of Staff. The mission of the Navy is to maintain, train and equip combat-ready Naval forces capable of winning wars, deterring aggression, the United States Navy is a seaborne branch of the military of the United States. The Navys three primary areas of responsibility, The preparation of naval forces necessary for the prosecution of war. The development of aircraft, weapons, tactics, technique, organization, U. S. Navy training manuals state that the mission of the U. S. Armed Forces is to prepare and conduct prompt and sustained combat operations in support of the national interest, as part of that establishment, the U. S. Navys functions comprise sea control, power projection and nuclear deterrence, in addition to sealift duties. It follows then as certain as that night succeeds the day, that without a decisive naval force we can do nothing definitive, the Navy was rooted in the colonial seafaring tradition, which produced a large community of sailors, captains, and shipbuilders. In the early stages of the American Revolutionary War, Massachusetts had its own Massachusetts Naval Militia, the establishment of a national navy was an issue of debate among the members of the Second Continental Congress. Supporters argued that a navy would protect shipping, defend the coast, detractors countered that challenging the British Royal Navy, then the worlds preeminent naval power, was a foolish undertaking. Commander in Chief George Washington resolved the debate when he commissioned the ocean-going schooner USS Hannah to interdict British merchant ships, and reported the captures to the Congress
4.
Gunboat
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In the age of sail, a gunboat was usually a small undecked vessel carrying a single smoothbore cannon in the bow, or just two or three such cannons. A gunboat could carry one or two masts or be oar-powered only, but the version of about 15 m length was most typical. Some types of gunboat carried two cannons, or else mounted a number of guns on the railings. The gun that such boats carried could be heavy, a 32-pounder for instance. For example, in the Battle of Alvøen during the Gunboat War of 1807-1814, Gunboats used in the Battle of Valcour Island on Lake Champlain during the American Revolutionary War were mostly built on the spot, attesting to the speed of their construction. All navies of the era kept a number of gunboats on hand. Gunboats saw extensive use in the Baltic Sea during the late 18th century as they were well-suited for the extensive coastal skerries and archipelagoes of Sweden, Finland and Russia. The rivalry between Sweden and Russia in particular led to an expansion of gunboat fleets and the development of new gunboat types. The majority of these were developed from the 1770s and onwards by the naval architect Fredrik Henrik af Chapman for the Swedish archipelago fleet. The designs, copied and refined by the rival Danish and Russian navies, spread to the Mediterranean, British ships engaged larger 22 m Russian gunboats off Turku in southeast Finland in 1854 during the Crimean War. The Russian vessels had the distinction of being the last oared vessels of war in history to fire their guns in anger, Gunboats played a key role in Napoleon Bonapartes plan for the invasion of England in 1804. Denmark-Norway used them heavily in the Gunboat War, between 1803 and 1812 the United States Navy had a policy of basing its navy on coastal gunboats, experimenting with a variety of designs. President Thomas Jefferson and his Democratic-Republican Party opposed a strong navy and they proved useless against the British blockade during the War of 1812. With the introduction of power in the early 19th century. Initially, these vessels retained full sailing rigs and used steam engines for auxiliary propulsion, the British Royal Navy deployed two wooden paddle-gunboats in the Lower Great Lakes and St. Lawrence River during the Rebellions of 1837 in Upper and Lower Canada. The United States Navy deployed an iron-hulled paddle gunboat, the USS Michigan, the Von der Tann became the first propeller-driven gunboat in the world. Conradi shipyards in Kiel built the steam-powered 120 long tons gunboat in 1849 for the navy of Schleswig-Holstein. 1, Von der Tann was the most modern ship in the navy and she participated successfully in the First Schleswig War of 1848-1851
5.
QF 6-pounder Hotchkiss
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The QF6 pounder Hotchkiss was a light 2.24 inch naval gun and coast defence gun of the late 19th century used by many countries, and was adapted for use in the early British tanks in World War I. The UK adopted a 40-calibre version as Ordnance QF Hotchkiss 6 pounder gun Mk I and it was manufactured under licence by the Elswick Ordnance Company. They were originally mounted for use against the new torpedo boats which started to service in the late 1870s. The original 1885 Mk I lacked a recoil system, the Mk II of 1890 introduced a recoil system, with a pair of recoil/recuperator cylinders. During World War I the navy required many more guns and a version with a barrel was developed to simplify manufacture. Initially these guns were allowed to be fired with a special lower charge. After World War I the gun was considered obsolete for combat use, of the 3,984 produced it was estimated that 1,640 still existed in 1939. With the onset of World War II the remaining guns were rushed back into service for anti-submarine defense, E-boat defense, New non-recoil Mk VI, Mk VI* and Mk VI** mountings were built with elevations between -10° to +70°. These mountings were used on models of the Fairmile D Motor Gunboats, Motor Launchs. Some of which were not re-armed with the modern auto-loading 6 pdr Mk IIA until late 1944, the gun was used to equip Male versions of the early British tanks, Mk I - Mk III. In 1916 the British Army having no experience in fighting tanks was faced with the difficulty of quickly providing a new class of weapon. The existing Hotchkiss 6 pounder naval gun appeared to most closely meet the need, a single gun was mounted in each sponson, i. e.2 per Male tank, able to fire forwards or to the side. The British chose to shorten the gun rather than change its location, the history of the Hotchkiss six pounder in United States Navy and Army service is a complex story. It was used in conjunction with another design, its primary rival being the Driggs-Schroeder six pounder. Oddly, one shipbuilding and naval supply company, Cramp & Sons, had a license to both the Hotchkiss and Driggs-Schroeder and sold both to the Navy in parallel. However, the purchases by the Navy were in small lots each year. Both Hotchkiss and Driggs-Schroeder guns used the same ammunition and eventually the Navy made certain that the ammunition for both was identical, there is no question that the Driggs-Schroeders were predominant in the new protected and armored cruisers that were being commissioned by 1895. However, USS Texas, a second class battleship commissioned in 1895, carried a mixed six pounder complement of ten Driggs-Schroeders, USS Maine, an armored cruiser, exclusively carried Driggs-Schroeder six pounders although it had a mixed one pounder battery of both Driggs-Schroeder and Hotchkiss
6.
QF 1-pounder pom-pom
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The QF1 pounder, universally known as the pom-pom due to the sound of its discharge, was a 37 mm British autocannon, the first of its type in the world. It was used by several countries initially as an infantry gun, hiram Maxim originally designed the Pom-Pom in the late 1880s as an enlarged version of the Maxim machine gun. Early versions were sold under the Maxim-Nordenfelt label, whereas versions in British service were labelled Vickers, Sons and they are all effectively the same gun. The Belgian Army used the gun on a field carriage mounting. A version was produced in Germany for both Navy and Army, in World War I, it was used in Europe as an anti-aircraft gun as the Maxim Flak M14. Four guns were used mounted on carriages in the German campaign in South West Africa in 1915. The British government initially rejected the gun but other countries bought it, in the Second Boer War, the British found themselves being fired on with success by the Boers with their 37 mm Maxim-Nordenfelt versions with ammunition made in Germany. In response, Vickers-Maxim of Britain shipped either 57 or 50 guns out to the British Army in South Africa and these early Mk I versions were mounted on typical field gun type carriages. In World War I, it was used as an early anti-aircraft gun in the defence of Britain. 25 were employed in August 1914, and 50 in February 1916, a Mk II gun on a Naval pedestal mounting was the first to open fire in defence of London during the war. However, the shell was insufficient to damage the German Zeppelin airships sufficiently to bring them down. The Ministry of Munitions noted in 1922, The pom-poms were of little value. There was no shrapnel available for them, and the provided for them would not burst on aeroplane fabric. Were of no use except at a lower elevation than a Zeppelin attacking London was likely to keep. Hogg of No.2 AA Section in III Corps was the first anti-aircraft gunner to shoot down an aircraft, with 75 rounds on 23 September 1914 in France. The gun was mounted on aircraft as the lighter 1-pounder Mk III. As a light gun, it was quickly replaced by the larger QF 1½ pounder. The British are reported to have used some Common pointed shells in the Boer War
7.
4"/50 caliber gun
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The 4/50 caliber gun was the standard low-angle, quick-firing gun for United States, first appearing on the monitor Arkansas and then used on Flush Deck destroyers through World War I and the 1920s. It was also the deck gun on S-class submarines, and was used to rearm numerous submarines built with 3-inch guns early in World War II. United States naval gun terminology indicates the gun fired a projectile 4-inch in diameter, and the barrel was 50 calibers long. The original 4-inch/50 caliber Mark 7 gun, M1898, serial nos. 213–254, 257–281, 316–338, was an entirely new high-power design built-up gun with a tube, jacket, hoop, locking ring, the ammunition was about 7 lb heavier than a 4-inch/40 caliber round. The Mod 1 was a Mod 0 that used a steel liner and the Mod 2 was either a Mod 0 or Mod 1 that was relined using a conical nickel-steel liner. Gun No.353 was the prototype of the Mark 8 and was test fired on 22 September 1910 and this gun had been ordered 16 June 1907 and delivered in November 1907. The simplified design of the Mark 8 had just a gun tube, the jacket extended all the way to the muzzle and ended in a muzzle bell. The production run was small with only 12 guns built, Nos. 353–364, the Mark 9 was a design directly resulting from tests with gun No.353. It was designed to be light in weight, and would go on to be the standard 4-inch gun used on destroyers, the gun would use an A tube, full-length jacket, a muzzle swell with a side swing Smith-Asbury breech mechanism and Welin breech block. The gun weighed about 2.725 short tons,365, the first Mark 9, was ordered from Midvale Steel on 18 October 1911. There were 390 Mark 9s built by four different manufacturers from 1911 until the US entered World War I in 1917, during the war another 1,885 guns were produced, with Root & VanDervoort, American Radiator Company and Poole Engineering joining the pre-war manufacturers. After the Armistice another 713 guns were produced, with orders for 3538 guns cancelled and it was decided after World War I that all destroyers would carry the 4-inch/50 caliber Mark 9 Mod 5 gun, the refits were completed in autumn 1921. 365-A, was order in 1915 but does not appear to have been completed until after WW I, the initial drawings were for a 4-inch/50 caliber anti-aircraft gun dated January and February 1915. Fixed ammunition with a 14. 5-pound charge of smokeless powder gave a 33-pound projectile a velocity of 2,900 ft/s, range was 9 mi at the maximum elevation of 20 degrees. Useful life expectancy was 400–500 effective full charges for a non-chrome plated barrel, increasing awareness of the need for improved anti-aircraft protection resulted in the mounting of dual purpose guns on destroyers beginning in the 1930s. The dual-purpose 5-inch/38 caliber gun became standard for United States destroyers constructed from the 1930s through World War II, United States destroyers built with 4-inch/50 caliber low-angle guns were mostly rearmed with dual-purpose 3-inch/50 caliber guns during the war. The 4-inch/50 caliber guns removed from destroyers were mounted on Defensively Equipped Merchant Ships of the British Merchant Navy, the unassigned numbers mostly corresponded to gun orders that were cancelled with the signing of the Armistice. They seem to have withdrawn in 1943 as other defenses were constructed
8.
3"/23 caliber gun
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The 3/23 caliber gun was the standard anti-aircraft gun for United States destroyers through World War I and the 1920s. Range was 10100 yards at 45 degrees elevation, ceiling was 18000 feet at the maximum elevation of 75 degrees. A partially retractable version was mounted as a gun on the US L-class, M-1, AA-1 class. Some major warships carried 3/23 caliber guns temporarily while awaiting installation of quad 1. 1/75 caliber guns, naval Weapons of World War Two. The Ships and Aircraft of the U. S. Fleet, british and Dominion Warships of World War II. DiGiulian, Tony Navweaps. com 3/23 caliber gun
9.
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
10.
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
11.
3"/50 caliber gun
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For Army 3-inch gun see 3-inch M1918 gun The 3″/50 caliber gun in United States naval gun terminology indicates the gun fired a projectile 3 inches in diameter, and the barrel was 50 calibers long. Different guns of this caliber were used by the U. S. Navy and U. S. Coast Guard from 1890 through the 1990s on a variety of combatant and transport ship classes. The US Navys first 3″/50 caliber gun was a model with a projectile velocity of 2,100 feet per second. Low-angle mountings for this gun had a range of 7000 yards at the elevation of 15 degrees. The gun entered service around 1900 with the Bainbridge-class destroyers, and was fitted to Connecticut-class battleships. By World War II these guns were only on a few Coast Guard cutters. These guns fired the same 2,700 feet per second used by the following dual-purpose Marks. These were built-up guns with a tube, partial-length jacket, hoop, dual-purpose 3″/50 caliber guns first entered service in 1915 as a refit to USS Texas, and were subsequently mounted on many types of ships as the need for anti-aircraft protection was recognized. They also replaced the original low-angle 4/50 caliber guns on flush-deck Wickes and these dual-purpose guns were quick-firing, meaning that they used fixed ammunition, with powder case and projectile permanently attached, and handled as a single unit weighing 34 pounds. Maximum range was 14,600 yards at 45 degrees elevation, useful life expectancy was 4300 effective full charges per barrel. The 3/50 caliber gun Marks 17 and 18 was first used as a deck gun on R-class submarines launched in 1918-1919. At the time it was an improvement on the earlier 3/23 caliber gun, after using larger guns on many other submarines, the 3/50 caliber gun Mark 21 was specified as the standard deck gun on the Porpoise- through Gato-class submarines launched in 1935-1942. The small gun was chosen to remove the temptation to engage enemy vessels on the surface. The gun was mounted aft of the conning tower to reduce submerged drag. Wartime experience showed that larger guns were needed and this need was initially met by transferring 4/50 caliber guns from S-class submarines as they were shifted from combat to training roles from late 1942. Later, the 5/25 caliber gun, initially removed from battleships sunk or damaged in the attack on Pearl Harbor and later manufactured in a submarine version, post-war experimentation with an extended range variant was abandoned as shipboard surface-to-air missiles were developed. The United States Navy considered contemporary 5/38 caliber guns and 5″/54 caliber guns more effective against surface targets, the 3″/50 caliber gun was a semiautomatic anti-aircraft weapon with a power driven automatic loader. These monobloc 3″ guns were fitted to both single and twin mountings, the single was to be exchanged for a twin 40 mm antiaircraft gun mount and the twin for a quadruple 40 mm mount
12.
Ship class
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A ship class is a group of ships of a similar design. This is distinct from a type, which might reflect a similarity of tonnage or intended use. For example, USS Carl Vinson is an aircraft carrier of the Nimitz class. In the course of building a class of ships, design changes might be implemented, in such a case, the ships of different design might not be considered of the same class, each variation would either be its own class, or a subclass of the original class. If ships are built of a class whose production had been discontinued, ships in a class often have names linked by a common factor, e. g. Trafalgar-class submarines names all begin with T, and Ticonderoga-class cruisers are named after American battles. Ships of the class may be referred to as sister ships. The name of a ship class is most commonly the name of the lead ship. However, other systems can be used without confusion or conflict, a descriptive name may be used, for example it was decided to group destroyers made to the same design as HMS Tomahawk, all named after weapons, as the Weapon rather than Tomahawk class. In European navies a class is named after the first ship commissioned regardless of when she was ordered or laid down, the West German Navy used a three-digit type number for every class in service or in advanced project state. Modified versions were identified by a letter suffix. After the reunification of Germany the German Navy kept the system, informally, classes are also traditionally named after their lead ships. The Indonesian Navy has a naming for its ships. Moreover, the type and missions can be identified by the first number on the ships three-digit hull number, which is placed on the front bows. That project sometimes, but not always, had a metaphorical name, in addition, the ships of the class would be numbered, and that number prefixed by a letter indicating the role of that type of vessel. For example, Project 641 had no name, though NATO referred to its members as Foxtrot-class submarines. The British Royal Navy has used methods of naming classes. For instance, the Amphion class is known as the A class. Most destroyer classes were known by the letter used in naming the vessels, e. g. V
13.
World War I
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World War I, also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history and it was one of the deadliest conflicts in history, and paved the way for major political changes, including revolutions in many of the nations involved. The war drew in all the worlds great powers, assembled in two opposing alliances, the Allies versus the Central Powers of Germany and Austria-Hungary. These alliances were reorganised and expanded as more nations entered the war, Italy, Japan, the trigger for the war was the assassination of Archduke Franz Ferdinand of Austria, heir to the throne of Austria-Hungary, by Yugoslav nationalist Gavrilo Princip in Sarajevo on 28 June 1914. This set off a crisis when Austria-Hungary delivered an ultimatum to the Kingdom of Serbia. Within weeks, the powers were at war and the conflict soon spread around the world. On 25 July Russia began mobilisation and on 28 July, the Austro-Hungarians declared war on Serbia, Germany presented an ultimatum to Russia to demobilise, and when this was refused, declared war on Russia on 1 August. Germany then invaded neutral Belgium and Luxembourg before moving towards France, after the German march on Paris was halted, what became known as the Western Front settled into a battle of attrition, with a trench line that changed little until 1917. On the Eastern Front, the Russian army was successful against the Austro-Hungarians, in November 1914, the Ottoman Empire joined the Central Powers, opening fronts in the Caucasus, Mesopotamia and the Sinai. In 1915, Italy joined the Allies and Bulgaria joined the Central Powers, Romania joined the Allies in 1916, after a stunning German offensive along the Western Front in the spring of 1918, the Allies rallied and drove back the Germans in a series of successful offensives. By the end of the war or soon after, the German Empire, Russian Empire, Austro-Hungarian Empire, national borders were redrawn, with several independent nations restored or created, and Germanys colonies were parceled out among the victors. During the Paris Peace Conference of 1919, the Big Four imposed their terms in a series of treaties, the League of Nations was formed with the aim of preventing any repetition of such a conflict. This effort failed, and economic depression, renewed nationalism, weakened successor states, and feelings of humiliation eventually contributed to World War II. From the time of its start until the approach of World War II, at the time, it was also sometimes called the war to end war or the war to end all wars due to its then-unparalleled scale and devastation. In Canada, Macleans magazine in October 1914 wrote, Some wars name themselves, during the interwar period, the war was most often called the World War and the Great War in English-speaking countries. Will become the first world war in the sense of the word. These began in 1815, with the Holy Alliance between Prussia, Russia, and Austria, when Germany was united in 1871, Prussia became part of the new German nation. Soon after, in October 1873, German Chancellor Otto von Bismarck negotiated the League of the Three Emperors between the monarchs of Austria-Hungary, Russia and Germany
14.
USS Dubuque (PG-17)
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USS Dubuque was a United States Navy patrol combatant ship that served in both World War I and World War II. She was named for Dubuque, Iowa and she was launched 15 August 1904 by Gas Engine and Power Co. and Charles L. Seabury and Co. Morris Heights, Bronx, where she was sponsored by Miss M. Tredway. She was commissioned on 3 June 1905, commanded by Lieutenant Commander Augustus F. Fechteler and she was reclassified AG-6 in 1919, IX-9,24 April 1922, and PG-17,4 November 1940. She arrived at Chicago, Illinois on 29 June 1911, and was decommissioned 22 July for use as a ship by the Illinois Naval Militia. Recommissioned on 4 August 1914, Dubuque sailed three days later for Portsmouth, New Hampshire, where she was placed in commission in reserve 3 October. She was fitted out as a ship and on 30 July 1915 she returned to a fully commissioned status and was assigned to Mining and Minesweeping Division. She participated in training along the Atlantic coast and after American entry into World War I in April 1917, she installed and tended nets in Hampton Roads and at New London. She also trained reserve officers at the Naval Academy, assigned to temporary duty with the Cruiser and Transport Force, Dubuque made three voyages between New York and Halifax, Nova Scotia, as a convoy escort between 6 June and 14 July 1917. On 8 December 1918, she reported to the American Patrol Detachment, Atlantic Fleet and she again went out of commission 27 May 1919. Dubuque was recommissioned 25 May 1922 and sailed from Portsmouth 8 June for Detroit, Michigan, attached to the 9th Naval District, she took Naval Reservists on cruises from her home port of Detroit into Lakes Superior and Michigan every summer. She was placed in reduced commission 1 November 1940 and on the 14th sailed for Boston and she returned to full commission 1 July 1941 and patrolled on the New England coast until 14 October. Two days later she arrived at Little Creek, Virginia to serve as gunnery practice ship for the Armed Guard School there, throughout her second war, Dubuque trained merchant ship armed guard crews in Chesapeake Bay. She was decommissioned 7 September 1945 and transferred to the Maritime Commission for disposal 19 December 1946, the entry can be found here
15.
USS Paducah (PG-18)
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USS Paducah was a Dubuque-class gunboat acquired by the U. S. Navy prior to World War I. Her task was to patrol, escort, and protect Navy ships. Paducah was launched 11 October 1904 by Gas Engine and Power Co. and Charles L. Seabury Co. Morris Heights, New York, sponsored by Miss Anna May Yeiser, and commissioned 2 September 1905, Comdr. She was reclassified AG–7 in 1919, IX–23,24 April 1922 and she patrolled Mexican waters in the aftermath of the Vera Cruz incident through the summer of 1914, then returned to her Caribbean operations, performing surveys from time to time. Paducah was ordered north to prepare at Portsmouth, New Hampshire, for European service in World War I and she reached Gibraltar 27 October, and based there as convoy escort to North Africa, Italy, the Azores, and Madeira. She attacked a U-boat 9 September 1918 after it had one of her convoy. Leaving Gibraltar 11 December, Paducah reached Portsmouth, New Hampshire,7 January 1919 to decommission 2 March 1919 and she again recommissioned 16 August 1920 through 9 September 1921 for survey duty in the Caribbean. Paducah was commissioned a third time 2 May 1922 for duty training Naval Reservists in the 9th Naval District and she arrived Duluth, Minnesota,20 June, replacing the USS Essex which then became a receiving ship. These training missions included regular two-week cruises, and gunnery practice on Lake Michigan, Paducah was modified in the early 1930s to run on oil-fired boilers. The triple expansion engines were installed, with fore and aft. Additional modifications included hammock berthing on a new deck. East Coast in early 1941, and through World War II, trained Naval Armed Guard gunners in Chesapeake Bay, decommissioning 7 September 1945, Paducah transferred to the Maritime Commission 19 December 1946, and was sold the same day to Maria Angelo, Miami, Florida. She was intercepted on 2 October 1947 and brought to Haifa, because she was a former naval vessel the newly formed Israeli Navy examined her in 1948 for possible service, but she was not in good shape and was not accepted for service. She was refurbished sufficiently to sail as an Israeli merchant vessel and made one trip in late 1948 from Haifa to Naples, there she was tied up and eventually sold for scrap in 1951. USS Paducah NavSource Online, Gunboat Photo Archive - Paducah - ex-IX-23 - ex-AG-7 - ex-Gunboat No.18
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Caribbean
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The Caribbean is a region that consists of the Caribbean Sea, its islands and the surrounding coasts. The region is southeast of the Gulf of Mexico and the North American mainland, east of Central America, situated largely on the Caribbean Plate, the region comprises more than 700 islands, islets, reefs and cays. These islands generally form island arcs that delineate the eastern and northern edges of the Caribbean Sea, in a wider sense, the mainland countries of Belize, Guyana, Suriname and French Guiana are often included due to their political and cultural ties with the region. Geopolitically, the Caribbean islands are usually regarded as a subregion of North America and are organized into 30 territories including sovereign states, overseas departments, and dependencies. From December 15,1954, to October 10,2010, there was a known as the Netherlands Antilles composed of five states. The West Indies cricket team continues to represent many of those nations, the region takes its name from that of the Caribs, an ethnic group present in the Lesser Antilles and parts of adjacent South America at the time of the Spanish conquest. The two most prevalent pronunciations of Caribbean are KARR-ə-BEE-ən, with the accent on the third syllable. The former pronunciation is the older of the two, although the variant has been established for over 75 years. It has been suggested that speakers of British English prefer KARR-ə-BEE-ən while North American speakers more typically use kə-RIB-ee-ən, usage is split within Caribbean English itself. The word Caribbean has multiple uses and its principal ones are geographical and political. The Caribbean can also be expanded to include territories with strong cultural and historical connections to slavery, European colonisation, the United Nations geoscheme for the Americas accords the Caribbean as a distinct region within the Americas. Physiographically, the Caribbean region is mainly a chain of islands surrounding the Caribbean Sea, to the north, the region is bordered by the Gulf of Mexico, the Straits of Florida and the Northern Atlantic Ocean, which lies to the east and northeast. To the south lies the coastline of the continent of South America, politically, the Caribbean may be centred on socio-economic groupings found in the region. For example, the known as the Caribbean Community contains the Co-operative Republic of Guyana. Bermuda and the Turks and Caicos Islands, which are in the Atlantic Ocean, are members of the Caribbean Community. The Commonwealth of the Bahamas is also in the Atlantic and is a member of the Caribbean Community. According to the ACS, the population of its member states is 227 million people. The geography and climate in the Caribbean region varies, Some islands in the region have relatively flat terrain of non-volcanic origin and these islands include Aruba, Barbados, Bonaire, the Cayman Islands, Saint Croix, the Bahamas, and Antigua
17.
Length between perpendiculars
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When there is no sternpost, the centerline axis of the rudder stock is used as the aft end of the length between perpendiculars. Measuring to the stern post or rudder stock was believed to give an idea of the ships carrying capacity, as it excluded the small. On some types of vessels this is, for all practical purposes, in a ship with raked stems, naturally that length changes as the draught of the ship changes, therefore it is measured from a defined loaded condition. Keever, John M. American Merchant Seamans Manual, turpin, Edward A. McEwen, William A
18.
Bow (ship)
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The bow /ˈbaʊ/ is the forward part of the hull of a ship or boat, the point that is usually most forward when the vessel is underway. Both of the fore and forward mean towards the bow. The other end of the boat is the stern, from Middle Dutch boech or Old Norse bógr. The bow is designed to reduce the resistance of the cutting through water. On slower ships like tankers, a bow shape is used to maximise the volume of the ship for a given length. A wet bow results from seawater washing over the top of the hull, a raked stem can help to reduce the wetness of the bow. Aside from making the deck slippery, water can corrode the metal of the ship, if the temperature is low enough this water can also freeze on the deck, rails, turrets, and other exposed surfaces, increasing the topside weight. The bow may be reinforced to serve as an ice-breaker, one example being the bow of container-ship Sea Witch whose reinforcement assisted its destruction of another ship in a 1973 collision, the forward part of the bow, usually on the ships centreline, is called the stem. Traditionally, the stem was a timber or metal bar into which side planks or plates were joined. ISBN 0-7566-0944-5 Steward, Robert, Boatbuilding Manual, 3rd ed. International Marine Publishing Company
19.
Bowsprit
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The bowsprit of a sailing vessel is a spar extending forward from the vessels prow. It provides a point for the forestay, allowing the fore-mast to be stepped farther forward on the hull. The word bowsprit is thought to originate from the Middle Low German word bōchsprēt - bōch meaning bow, early ocean-going vessels tended to tilt the bowsprit, also known in centuries past as a boltsprit, at a high angle, and hung one or two square spritsails from yards. Many types of pleasure and work vessels ship bowsprits, generally short in length. Once popular on large and small, even after the popularization of the Bermuda rig. On some modern racing yachts and dinghies, the bowsprit is retractable, the bowsprit on a tall ship may be of considerable length and carry several forestays supporting the foremast. Headsails are stowed by tying onto the bowsprit when not in use, to minimise the risk of bowsprit and crew handling sail on it being buried in large waves, it is normally angled upwards from the horizontal. Some hang gliders use a bowsprit, rather than a spar to spread their wings, the bowsprit is formed by extending the keel tube about a metre beyond the leading edge of the wing. In 1879 a patent in England by F. W. Brearey was filed that taught bowsprit structure for flying machines, in the modern mid-1900s renaissance in hang gliding a Dial Soap TV commercial featured in 1973 a bowsprit cross-sparless hang glider. Other examples of bowsprit hang gliders were exampled in the manufactured by Bautek in the 1980s
20.
Beam (nautical)
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The beam of a ship is its width at the widest point as measured at the ships nominal waterline. The beam is a bearing projected at right-angles from the fore and aft line, Beam may also be used to define the maximum width of a ships hull, or maximum width plus superstructure overhangs. Typical length-to-beam ratios for small sailboats are from 2,1 to 5,1, large ships have widely varying beam ratios, some as large as 20,1. Rowing shells designed for racing may have length to beam ratios as high as 30,1. The beam of many vessels can be calculated using the following formula. Some examples, For a standard 27 ft yacht, the root of 27 is 3,3 squared is 9 plus 1 =10. The beam of many 27 ft monohulls is 10 ft, for a Volvo Open 70 yacht,70.5 to the power of 2/3 =17 plus 1 =18. The beam is often around 18 ft, for a 741 ft long ship, the cube root is 9, and 9 squared is 81, plus 1. The beam will usually be around 82 ft, e. g. Seawaymax, as catamarans have more than one hull, there is a different beam calculation for this kind of vessel. BOC stands for Beam On Centerline and this term in typically used in conjunction with LOA. The ratio of LOA/BOC is used to estimate the stability of multihull vessels, the lower the ratio the greater the boats stability. The BOC for vessels is measured as follows, For a catamaran, carlin – similar to a beam, except running in a fore and aft direction. Keever, John M. American Merchant Seamans Manual, turpin, Edward A. McEwen, William A
21.
Draft (hull)
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Draft determines the minimum depth of water a ship or boat can safely navigate. The draft can also be used to determine the weight of the cargo on board by calculating the displacement of water. A table made by the shows the water displacement for each draft. The density of the water and the content of the bunkers has to be taken into account. The closely related term trim is defined as the difference between the forward and aft drafts, the draft aft is measured in the perpendicular of the stern. The draft forward is measured in the perpendicular of the bow, the scale may use traditional English units or metric units. If the English system is used, the bottom of each marking is the draft in feet, in metric marking schemes, the bottom of each draft mark is the draft in decimeters and each mark is one decimeter high. Larger ships try to maintain a water draft when they are light, in order to make a better sea crossing. In order to achieve this they use sailing ballasts to stabilize the ship, the water draft of a large ship has little direct link with its stability because stability depends solely on the respective positions of the metacenter of the hull and the center of gravity. It is also however, that a light ship has quite high stability which can lead to implying too much rolling of the ship. A fully laden ship can have either a strong or weak stability, the draft of ships can be increased when the ship is in motion in shallow water, a phenomenon known as squat. Draft is a significant factor limiting navigable waterways, especially for large vessels, of course this includes many shallow coastal waters and reefs, but also some major shipping lanes. Panamax class ships—the largest ships able to transit the Panama Canal—do have a limit but are usually limited by beam, or sometimes length overall. However, in the much wider Suez Canal, the factor for Suezmax ships is draft. Some supertankers are able to transit the Suez Canal when unladen or partially laden, canals are not the only draft-limited shipping lanes. A Malaccamax ship has the deepest draft able to transit the very busy, there are only a few ships of this size. A small draft allows pleasure boats to navigate through shallower water and this makes it possible for these boats to access smaller ports, to travel along rivers and even to beach the boat. A large draft ensures a level of stability in strong wind
22.
Displacement (ship)
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The displacement or displacement tonnage of a ship is the ships weight. The name reflects the fact that it is measured indirectly, by first calculating the volume of water displaced by the ship, by Archimedes principle, this is also the weight of the ship. Displacement should not be confused with other measurements of volume or capacity typically used for vessels such as net tonnage, gross tonnage. The process of determining a vessels displacement begins with measuring its draft This is accomplished by means of its draft marks, a merchant vessel has three matching sets, one mark each on the port and starboard sides forward, midships, and astern. These marks allow a ships displacement to be determined to an accuracy of 0. 5%, the draft observed at each set of marks is averaged to find a mean draft. The ships hydrostatic tables show the corresponding volume displaced, to calculate the weight of the displaced water, it is necessary to know its density. Seawater is more dense than water, so a ship will ride higher in salt water than in fresh. The density of water varies with temperature. Devices akin to slide rules have been available since the 1950s to aid in these calculations and it is done today with computers. Displacement is usually measured in units of tonnes or long tons and these bring the ship down to its load draft, colloquially known as the waterline. Full load displacement and loaded displacement have almost identical definitions, full load is defined as the displacement of a vessel when floating at its greatest allowable draft as established by classification societies. Warships have arbitrary full load condition established, deep load condition means full ammunition and stores, with most available fuel capacity used. Light displacement is defined as the weight of the ship excluding cargo, fuel, water, ballast, stores, passengers, crew, normal displacement is the ships displacement with all outfit, and two-thirds supply of stores, ammunition, etc. on board. Standard displacement, also known as Washington displacement, is a term defined by the Washington Naval Treaty of 1922. Naval architecture Hull Hydrodynamics Tonnage Dear, I. C. B, oxford Companion to Ships and the Sea. George, William E. Stability & Trim for the Ships Officer, turpin, Edward A. McEwen, William A. Trim and Stability Information for Drydocking Calculations, conference on the Limitation of Armament,1922. Papers Relating to the Foreign Relations of the United States,1922, proceedings of the United States Naval Institute
23.
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
24.
Steam engine
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A steam engine is a heat engine that performs mechanical work using steam as its working fluid. Steam engines are combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as power, nuclear power or geothermal energy may be used. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle, in the cycle, water is heated and transforms into steam within a boiler operating at a high pressure. When expanded through pistons or turbines, mechanical work is done, the reduced-pressure steam is then exhausted to the atmosphere, or condensed and pumped back into the boiler. Specialized devices such as hammers and steam pile drivers are dependent on the steam pressure supplied from a separate boiler. The use of boiling water to mechanical motion goes back over 2000 years. The Spanish inventor Jerónimo de Ayanz y Beaumont obtained the first patent for an engine in 1606. In 1698 Thomas Savery patented a steam pump that used steam in direct contact with the water being pumped, Saverys steam pump used condensing steam to create a vacuum and draw water into a chamber, and then applied pressurized steam to further pump the water. Thomas Newcomens atmospheric engine was the first commercial steam engine using a piston. In 1781 James Watt patented an engine that produced continuous rotary motion. Watts ten-horsepower engines enabled a range of manufacturing machinery to be powered. The engines could be sited anywhere that water and coal or wood fuel could be obtained, by 1883, engines that could provide 10,000 hp had become feasible. The stationary steam engine was a key component of the Industrial Revolution, the aeolipile described by Hero of Alexandria in the 1st century AD is considered to be the first recorded steam engine. Torque was produced by steam jets exiting the turbine, in the Spanish Empire, the great inventor Jerónimo de Ayanz y Beaumont obtained a patent for the first steam engine in history in 1603. Thomas Savery, in 1698, patented the first practical, atmospheric pressure and it had no piston or moving parts, only taps. It was an engine, a kind of thermic syphon, in which steam was admitted to an empty container. The vacuum thus created was used to water from the sump at the bottom of the mine
25.
Haganah
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Haganah was a Jewish paramilitary organization in the British Mandate of Palestine, which became the core of the Israel Defense Forces. The evolution went step by step from Bar-Giora, to Hashomer, to Haganah, the Jewish paramilitary organisations in the New Yishuv started with the Second Aliyah. The first such organization was Bar-Giora, founded in September 1907 and it consisted of a small group of Jewish immigrants who guarded settlements for an annual fee. At no time did Bar-Giora have more than 100 members and it was converted to Hashomer in April 1909, which operated until the British Mandate of Palestine came into being in 1920. Hashomer was an elitist organization with narrow scope, and was created to protect against criminal gangs seeking to steal property. During World War I, the forerunners of the Haganah/IDF were the Zion Mule Corps, after the Arab riots against Jews in April 1920, the Yishuvs leadership saw the need to create a nationwide underground defense organization, and the Haganah was founded in June of the same year. During World War II the successor to the Jewish Legion of World War I was the Jewish Brigade, at the beginning of the ensuing 1948-49 full-scale conventional war against regular Arab armies, the Haganah was reorganised to become the core of the new Israel Defense Forces. Believing that they could not rely on the British administration for protection from these gangs, in addition to guarding Jewish communities, the role of the Haganah was to warn the residents of and repel attacks by Palestinian Arabs. In the period between 1920–1929, the Haganah lacked a central authority or coordination. Haganah units were very localized and poorly armed, they consisted mainly of Jewish farmers who took turns guarding their farms or their kibbutzim, following the 1929 Palestine riots, the Haganahs role changed dramatically. It became a larger organization encompassing nearly all the youth and adults in the Jewish settlements. It also acquired foreign arms and began to develop workshops to create hand grenades and simple military equipment, many Haganah fighters objected to the official policy of havlagah that Jewish political leaders had imposed on the militia. Fighters had been instructed to defend communities and not initiate counterattacks against Arab gangs or their communities. This policy appeared defeatist to many who believed that the best defense is a good offense, in 1931, the more militant elements of the Haganah splintered off and formed the Irgun Tsvai-Leumi, better known as Irgun. During the 1936–1939 Arab revolt in Palestine, the Haganah worked to protect British interests and to quell Arab rebellion using the FOSH, at that time, the Haganah fielded 10,000 mobilized men along with 40,000 reservists. The battle experience gained during the training was useful in the 1948 Arab–Israeli War, by 1939, the British had issued the White Paper, which severely restricted Jewish immigration to Palestine, deeply angering the Zionist leadership. In reaction to the White Paper, the Haganah built up the Palmach as the Haganahs elite strike force, approximately 100,000 Jews were brought to Palestine in over one hundred ships during the final decade of what became known as Aliyah Bet. The Haganah also organized demonstrations against British immigration quotas, in 1940 the Haganah sabotaged the Patria, an ocean liner being used by the British to deport 1,800 Jews to Mauritius, with a bomb intended to cripple the ship
26.
Palestine (region)
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Palestine is a geographic region in Western Asia between the Mediterranean Sea and the Jordan River. It is sometimes considered to include adjoining territories, the name was used by Ancient Greek writers, and was later used for the Roman province Syria Palaestina, the Byzantine Palaestina Prima, and the Islamic provincial district of Jund Filastin. The region comprises most of the claimed for the biblical regions known as the Land of Israel. Historically, it has known as the southern portion of wider regional designations such as Canaan, Syria, ash-Sham. The boundaries of the region have changed throughout history, today, the region comprises the State of Israel and the Palestinian territories in which the State of Palestine was declared. Modern archaeology has identified 12 ancient inscriptions from Egyptian and Assyrian records recording likely cognates of Hebrew Pelesheth, the term Peleset is found in five inscriptions referring to a neighboring people or land starting from c.1150 BCE during the Twentieth dynasty of Egypt. Neither the Egyptian nor the Assyrian sources provided clear regional boundaries for the term, approximately a century later, Aristotle used a similar definition for the region in Meteorology, in which he included the Dead Sea. The term is accepted to be a translation of the Biblical name Peleshet. The term is used in the Septuagint, who used a transliteration Land of Phylistieim different from the contemporary Greek place name Palaistínē. Following the Muslim conquest, place names that were in use by the Byzantine administration generally continued to be used in Arabic, Modern archaeologists and historians of the region refer to their field of study as Levantine archaeology. The region was among the earliest in the world to see human habitation, agricultural communities, during the Bronze Age, independent Canaanite city-states were established, and were influenced by the surrounding civilizations of ancient Egypt, Mesopotamia, Phoenicia, Minoan Crete, and Syria. Between 1550–1400 BCE, the Canaanite cities became vassals to the Egyptian New Kingdom who held power until the 1178 BCE Battle of Djahy during the wider Bronze Age collapse. The region became part of the Neo-Assyrian Empire from c.740 BCE, in 539 BCE, the Babylonian empire was replaced by the Achaemenid Empire. In the 330s BCE, Macedonian ruler Alexander the Great conquered the region and it ultimately fell to the Seleucid Empire between 219–200 BCE. In 116 BCE, a Seleucid civil war resulted in the independence of certain regions including the Hasmonean principality in the Judaean Mountains, from 110 BCE, the Hasmoneans extended their authority over much of Palestine, creating a Judaean–Samaritan–Idumaean–Ituraean–Galilean alliance. The Judaean control over the region resulted in it also becoming known as Judaea. Between 73–63 BCE, the Roman Republic extended its influence into the region in the Third Mithridatic War, conquering Judea in 63 BCE, and splitting the former Hasmonean Kingdom into five districts. The three-year Ministry of Jesus, culminating in his crucifixion, is estimated to have occurred from 28–30 CE, in 70 CE, Titus sacked Jerusalem, resulting in the dispersal of the citys Jews and Christians to Yavne and Pella
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International Standard Book Number
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The International Standard Book Number is a unique numeric commercial book identifier. An ISBN is assigned to each edition and variation of a book, for example, an e-book, a paperback and a hardcover edition of the same book would each have a different ISBN. The ISBN is 13 digits long if assigned on or after 1 January 2007, the method of assigning an ISBN is nation-based and varies from country to country, often depending on how large the publishing industry is within a country. The initial ISBN configuration of recognition was generated in 1967 based upon the 9-digit Standard Book Numbering created in 1966, the 10-digit ISBN format was developed by the International Organization for Standardization and was published in 1970 as international standard ISO2108. Occasionally, a book may appear without a printed ISBN if it is printed privately or the author does not follow the usual ISBN procedure, however, this can be rectified later. Another identifier, the International Standard Serial Number, identifies periodical publications such as magazines, the ISBN configuration of recognition was generated in 1967 in the United Kingdom by David Whitaker and in 1968 in the US by Emery Koltay. The 10-digit ISBN format was developed by the International Organization for Standardization and was published in 1970 as international standard ISO2108, the United Kingdom continued to use the 9-digit SBN code until 1974. The ISO on-line facility only refers back to 1978, an SBN may be converted to an ISBN by prefixing the digit 0. For example, the edition of Mr. J. G. Reeder Returns, published by Hodder in 1965, has SBN340013818 -340 indicating the publisher,01381 their serial number. This can be converted to ISBN 0-340-01381-8, the check digit does not need to be re-calculated, since 1 January 2007, ISBNs have contained 13 digits, a format that is compatible with Bookland European Article Number EAN-13s. An ISBN is assigned to each edition and variation of a book, for example, an ebook, a paperback, and a hardcover edition of the same book would each have a different ISBN. The ISBN is 13 digits long if assigned on or after 1 January 2007, a 13-digit ISBN can be separated into its parts, and when this is done it is customary to separate the parts with hyphens or spaces. Separating the parts of a 10-digit ISBN is also done with either hyphens or spaces, figuring out how to correctly separate a given ISBN number is complicated, because most of the parts do not use a fixed number of digits. ISBN issuance is country-specific, in that ISBNs are issued by the ISBN registration agency that is responsible for country or territory regardless of the publication language. Some ISBN registration agencies are based in national libraries or within ministries of culture, in other cases, the ISBN registration service is provided by organisations such as bibliographic data providers that are not government funded. In Canada, ISBNs are issued at no cost with the purpose of encouraging Canadian culture. In the United Kingdom, United States, and some countries, where the service is provided by non-government-funded organisations. Australia, ISBNs are issued by the library services agency Thorpe-Bowker
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United States Navy