In 1806, Fulton invented the steamship (wood) in the United States, and in the middle of the 19th century, the Great Easton was the first steel schoolyard. Appeared in the 1830s, the late 19th century was the era of steel steamships. Make a ship out of wood and make a ship that can accommodate thousands of people with steel in a non-powered thousands of years => Joe+Ka power engine. I know that Britain, which defeated China in the Opium War in 1842, mobilized the powered warship "Nemesis," but I don't know if this is a wooden van or steel ship. I know most wooden sailboats are mobilized. The Black Fleet of Admiral Perry of the United States, which scared Japan to open in 1853, is also a "wood sailboat," a "external-wheel-powered wooden ship," or a "scuru steel steamer." Unyang, a Japanese ship that opened its port in Korea in 1876, is a steel steamer. The climax of the 1912 titanium tragedy. along with the Dread Note-class battleship. The main focus of the West was probably the slow development in the East... ...China once overwhelmed the West, including the Zheng He fleet, but the Navy => Army was the main force. South Korea... ...Japan was a geeky navy that was defeated by Yi Sun-shin until the Imjin War, but in the Edo period, it copied Western sailboats. A copy of a Western steel ship after Meiji. After Columbus in the 15th and 6th centuries... ...the Western sailboat was a wooden boat, but it was worth the Gyumon. However, until the Middle Ages, the West was a dog. China is overwhelming. In any case, the conversion of steel-powered ships was a revolution during the revolution. ================================================== I'm scooped up. A ship's development history ship is defined as a structure made of wood and iron that ships with people or objects in water, so it has three things: floating buoyancy and loading mobility that carries cargo. Ships have been used by mankind as one of the longest-running means of transportation and have been developed by changes in social structure. It is widely believed that the birthplace of human civilization has always been developed along the great river. I think that ships were developed as a means of transportation using rivers from ethnic groups living along the river. It is estimated that the first ship of civilization and ship development was built before bc5,000. It was a raft made of logs or reeds, or a small boat (coracle) made of willow or willow branches that are still found in Wales or Ireland, leathery and made like a nun. The best ships initially used paddle (short and wide oars such as canoeing), but soon used oars, and they developed into large ships where people row in rows on both sides of the boat. ◀ In Egypt, a Mediterranean galley, ships were used to sail around 1500 B.C. to maintain ships with no keels and only ropes. In this era, sails were not invented and sailed by manpower. <designtimesp=3280> The use of human power to move ships around 1500 B.C. has many disadvantages. First of all, they had to supply the slaves to row, but that did not end, but they had to feed, sleep, and take care of them well. As the slaves were placed in a row and then another row was placed on it, the ship's design was restricted and the ship's balance became unstable. So around 5000 B.C., Egypt used sails to use wind power together. In the era of inventing sails and sailing by sail and manpower, ships have gradually developed and developed into rescue ships with about 20 oars and large sails. <Egyptian sailboat model designtimesp=3292> The first horizontal sail used on a ship hung a square cloth (mainly linen) from a wooden mast called a bow and lowered it from top to bottom. The bow has a mast firmly attached to the top, so when the sail is unfolded, the sail is laid across the longitudinal direction of the ship. However, this limited the use of sails, because if the wind blew from the south, the ship had no choice but to push north. So he could not sail properly with the sails alone, so he still had to take the rowers with him. Large triangular sails are thought to have been invented by the Arabs, which began to be used in Europe in the 9th century. It is triangular and is attached along the front edge of the bow. The middle part of the bow was loosely attached to the mast near the top, allowing the sail to move from side to side by pulling the rope from behind the ship. So, the ship could go against the wind because the sail could be unfolded at various angles. The use of triangular sails made it much easier to control sailboats, but the decisive factor that made long voyages possible was the key invented in China and introduced into Europe in the early 13th century. Before that, a large oar was put in the sea water at the stern to steer the ship. The oars used for such large ships were too heavy for man to handle. The surface area of the newly introduced key was much larger than that of a paddle, and it was supposed to be completely submerged in water. The key was attached to the ship's junk by hinges on a long vertical beam, and could be turned through the lever of the key handle. In the Middle Ages, Greece sailed from Homer (around the 9th century BC), distinguishing between military and merchant ships. Greek warships mainly relied on two-stage oars, and merchant ships sailed on sails. The reason is that the warship needed a high speed for war, so it was seen as many rowers as possible, and the players had a sense of impact, and ships with three-stage oars were widely used from around 600 B.C. From an economic point of view, the merchant ship was operated by a mast and a horizontal sail, with no impact, and the hull was convex to increase the loading capacity. Around 700 B.C., there was a two-stage rowboat relief in Asilia. The rowers are sitting on two-tiered seats. The typical ring of the Phoenician people was the leading figure in the Mediterranean for hundreds of years before and after 1000 B.C. The rings of Mesopotamia show pointed-angled warships and transport ships. The Roman merchant ship did not change much from the Greek merchant ship, and only a large first-stage rowboat and a second-stage rowboat were built. However, military ships were different. The whole thing was strong, and the bow had an impact on it, as it was in Greek times, but a connecting plate was prepared for the soldiers to jump on the enemy ship and fight. Closer to the enemy ship, the connecting plate was crossed over the enemy ship, and the soldiers crossed it to fight. There is also a painting that looks like a bull spinning a circle on a ship. It is presumed to have been invented in the late Roman period, but it was not actually used. After that, ships sailing by rowing gradually disappeared, and ships that could sail using sails gradually developed with the development of navigation technology, leading to the emergence of many large sailboats that could sail the ocean. ▲ Carack ▲ Carave ▲ Galleon Two or more masts are used, horizontal and triangular sails are combined, and new intermediate sails, sprit sales, and front sails can be added to allow long-term navigation. This paved the way for epic voyages made by explorers such as Magellan, Columbus, and Vasco da Gama, which brought about the expansion of Western trade in Europe in the 15th and 16th centuries. This also transformed the aspect of the naval battle, as Drake revealed in 1588 when he defeated the invincible fleet of Spaniards. Various sailboats remained in existence until the 20th century. Although sailing ships seem imposing, no matter how much progress has been made in construction and navigation technology, they have limitations that inevitably depend on the wind. * Note >SANTA MARIA, which Columbus discovered at the end of the 5th century, was a wooden sailboat with a total length of 29m and a full capacity of 233 tons. The turtle ship in Korea was also a wooden pan-route with a total length of more than 30m and a width of about 8.7m. The turtle ship can be said to be a ship with a transitional form of a ship of the time. All European warships are in the form of sailboats that use the wind, but the turtle ship is an ironclad ship that accommodates both during the transition period when the material of the ship changes from tree to iron. The emergence of iron structured ships and steamships appeared in the early 19th century. In 1807, FULTON succeeded in sailing between New York and Albany on the Hudson River on the CLERMONT, equipped with steam engines and outer wheels. The essential inefficiency of the external wheel was overcome by the invention of a propeller screw that always operates in a submerged state. The propeller screw was small in size and much stronger. The idea of a screw was studied in the early 18th century, but it proved to be superior to an outer wheel after the advent of a ship built by Francis Pettit Smith in England in 1836 and a ship built by Jon Eriksson in 1837 in Sweden. In order to use the propeller in earnest, an engine with improved performance and a metal hull were required, but after 1850, propellers were used on most ships. However, for a considerable period of time since then, many ships have mounted sails as auxiliary means. The Great Eastern Length: 689 feet (211 m) Width: 117.9 feet (36 m) Draft: 30.1 feet (9.2 m) Tonnage: 18,915 square yards of sail, one propeller and two paddles.
14 knots Built in England in 1858, the Great Easton (GREAT EASTERN) used double plates from keel to the vicinity of the waterline, propelled by six masts and two steam engines, a contemporary giant with a failed SCREW PROPELLER, but a combination of all contemporary transatlantic technologies. When the Crimean War broke out in 1854, Henry Bessamer knew that the existing artillery was not strong enough to fire a new shell with steel wires he designed, so he devoted himself to making steel. Therefore, with the invention of a law similar to today's oxygen steelmaking method in 1858, it was recognized that Joseon's materials are superior to steel, and steel shipbuilding has been developed. Another important progress with the shipbuilding of steel wires after that is the development of welding technology used instead of rivets to connect metal plates. Rivets had the advantage of providing a very strong structure when overlapping plates, but since each rivet required labor of two boys and two adults, welding technology has developed, and steel wires are almost dried by welding today. Steam engines remained firm as the best power source in ships, but by the end of the 19th century they began to compete with various power sources. However, the invention of the steam turbine in 1882 showed that the role of the steam engine still remains. A turbine refers to a device that rotates an axis attached to a wing by a liquid or gas passing over the wing, such as a spinning wheel or a windmill. Carlde Laval of Sweden was the first to realize that it was possible to turn a turbine using steam. He devoted himself to designing the cream separator and needed a higher rotational speed than could be obtained from a conventional steam engine. He was able to obtain such a speed by spraying high-pressure steam onto the blades of a single turbine wheel. However, the rotational speed of the turbines made by de La Bal was too high for most applications, so the steam turbines achieved success after Charles Parsons changed the design of the steam engines and invented the steam turbines. During a naval review at Spithead in 1894, Parsons succeeded in mounting his engine to the experimental Batterbinia to run at a speed of 34.5 knots. As a result, Parsons' steam turbine engine was adopted as a ship engine for the British Navy and later used as an engine for all merchant ships. <Parsons' Tubinia design timesp=3440> and various organizations have been developed for the propulsion of ships to this day. In addition to turbines in ships, it has been developed by the development of gasoline engines (Daimler, Germany), petroleum engines (Priestman, UK), 1886, and compression ignition engines (Germany, R. Diesel) in 1893, and most of the heat and oil engines are small ships. Even today, it is sometimes found in small fishing boats engaged in coastal fishing in the southern and western regions. Gasoline engines that use gasoline as fuel are, in principle, prohibited from using ships as ship engines to protect ships from fire. To this day, diesel engines are mainly used as ship engines along with turbine engines, and nuclear engines, developed after World War II to obtain various propulsion power, are expected to be used as the main engine of alternative fuel development due to high production costs.Recently, there are some retro tendencies to use wind power that does not cost a lot of money, and there are also large computer-operated sails. In modern times, ships have been differentiated into three types: passenger ships, cargo ships, and cargo ships depending on the degree of loading passengers and cargoes. Due to the development of aircraft, passenger ships are used for cruise ships in Suncheon, not passenger ships that travel to and from the ocean, and due to the development of automobiles, ferry boats carrying cars and passengers have been created. At first, cargo ships were general cargo ships mainly aimed at transporting miscellaneous goods, but due to increased cargo, they were divided into frozen cargo ships, coal carriers, wood carriers, and ore carriers. In the 1970s, ships became larger due to the trend of exclusiveization of marine cargo, and in the 1980s, high-speed transportation was attempted for rapid and pleasant transport of container cargo and sea passengers. In the late 1980s, 40-note passenger ships for coastal routes became practical, and recently, ships with 50 knots speed are being studied by combining advanced technologies in the fields of control, propulsion, and computer with shipbuilding technology.The era of high-speed ships will come for future ships.
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