the invention of a submarine

 Looking at the history of submarines, it was in 1620 that submarines (not strictly 'submarines' but were unified as 'submarines' for convenience) first conducted underwater navigation. It was in 1900 that the Navy first adopted it. After that, development was remarkably active, and 50 years later, it developed mainly on underwater performance and reached today. The first submarine was reportedly sailed in 1624 by Dutch physicist Van Dravel, diving five meters from the Thames. It is said that there were more than 114 patents for submarines in the UK alone until 1927, and it is presumed that there were many patents after that. The free-to-submarine submarine was the "Turtle" built by Bushnell in 1775 during the American War of Independence, and the first submarine to sink enemy ships in the American Civil War was Hunley. After the Swedish 'Nordenfeld' loaded the torpedo into a submarine in 1885, the torpedo was recognized as the submarine's weapon. Early submarines were submerged and injured by hanging blocks of stone from the bottom of the ship. During the incubation period, glass windows were installed at the projections of the hull to view the water, which is the beginning of the periscope, and today's periscope is called the Spanish Navy submarine "Peral" in 1888. For the first 250 years, submarine propulsion was man-made. It was only in 1863 that the French Navy sailed four knots using a compressed air-powered engine. Subsequently, a steam propulsion engine appeared and promoted it as an oil engine. The current diesel engine was completed in France in the 1900s. In 1888, France adopted the world's first submarine "Zimnot" to the Navy. Nine years later, in 1897, the United States recruited a submarine "Holland" from the Navy, and later from the Italian, British, Russian, Japanese and German navies. At the end of roughly the experimental stages of submarines, World War I broke out, and through World War I and II, submarines developed a lot. The largest submarine in World War I was the French 'Gustaf Discharge' with a displacement of 800 tons. During World War I, submarines were loaded with torpedoes or ships. The range of action was also expanded to reach 2,000 tons. During the war, submarines equipped with water planes, submarine interceptors, transport submarines, and mine-bearing submarines were built. After World War I, German submarines were distributed to several victorious countries. Britain, the United States, France, and Japan have referred to them a lot in submarine construction. Since the 1930s, high-tension steel has been used on the hull to build a submerged depth of more than 100 meters. In World War II, supply submarines appeared, and German submarines initially made war records, but eventually.In 1943, the development of beauty electronic equipment and anti-submarine weapons reinforced underwater performance by mounting snorkel equipment on submarines. With the development of detection equipment after World War II, improvement of submarine underwater performance has emerged as an urgent problem. Then in 1953, the teardrop-type submarine 'Albacore', suitable for underwater high-speed navigation, was born in the United States. In 1954, the world's first nuclear submarine "Nautilus" was completed in the United States. The name "Nautilus" was also a name that suddenly became famous in 1870 when it was used for submarines in the novel "Two Seaside" by French novelist Zulverne. The ship passed through the North Pole while underwater, demonstrating the power of the nuclear submarine. In December 1959, the United States created the world's first ballistic missile-mounted nuclear submarine "George Washington" (6,700 tons) with 16 Polaris nuclear missiles. In the early 1960s, the Soviet Union built a guided-missile nuclear submarine to intercept the invading U.S. aircraft carrier task force, and in 1968 a ballistic-missile submarine was in service, delaying the U.S. ballistic-missile nuclear submarine by about 10 years. As of 2000, the U.S., Russia, the U.K., France and China had 220 nuclear submarines.