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Prior to then, warships were made primarily of wood. Afterwards, the ships and naval warfare changed dramatically.
Engineered by John Ericsson, the ship's appearance was described as a "cheesebox on a raft", consisting of a heavy, round iron turret on the deck housing two large cannons. The armored deck was barely above the water line. Aside from a smoke stack and a few fittings, the bulk of the ship was below the water line to prevent damage from cannon fire; torpedoes, that is, anchored naval mines, were a concern, though self-propelled torpedoes would not be a worry for another 50 years. The hull of the Monitor was constructed at the Continental Iron Works in the Greenpoint section of Brooklyn, New York, and the ship was launched there on January 30January 30 is the 30th day of the year in the Gregorian Calendar. There are 335 days remaining, (336 in leap years). Events 1595 William Shakespeare's Romeo and Juliet is performed for the first time. 1649 King Charles I of England is beheaded. 1781 Artic, 1862.
Monitor was one of the most innovative naval vessels of all time. It was the first ship made almost entirely out of iron. Parts were forged in nine foundries and brought together to build the ship. The entire process took less than 120 days. Other innovations included the "cheesebox", the first rotating turret; it was the first naval vessel fitted with Ericsson's marine screwA propeller can be seen as a rotating fin in water or a wing in air. The horizontal axis of rotation produces a dynamic force as thrust. The force produced is from the difference in pressure from the forward and rear surfaces of the blades. Aircraft prope and it even anticipated some aspects of submarineUSS Los Angeles (SSN-688)|USS Los Angeles A submarine is a specialized boat that travels under water, usually for military or scientific purposes. Most major navies of the world employ submarines. Submarines are also used for marine and freshwater science design by placing all facilities except the pilot station and turret under water, making it the first semi-submersibleA semi-submersible or semisubmersible is a watercraft that is designed with a large portion of its volume (bulk) underwater. Unlike a submarine it never is entirely underwater in normal seas. Types and Applications Tourist Underwater Viewing An example of watercraft. In contrast, Virginia, was a conventional wooden vessel covered with iron plates and with fixed weapons.
Already three months after the famous battle the design was offered to Sweden and in 1865 the first Swedish monitor was being built at Motala Warf in Norrköping. The first one was named John Ericsson in honour of the constructor. It was followed by 14 more monitors. One of them, Sölve, is preserved at the marine museum in Gothenburg.