https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf en-us 2016-03-04 17:55:42 UTC 2024-10-14 07:23:40 UTC hello@padlet.com https://padlet-assets.storage.googleapis.com/portrait/earth.jpg jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99161992 In 1775, David Bushnell invented the first American Submarine named 'The Turtle". He designed it for use against British Royal Navy vessels which were occupying North American harbors during the American Revolutionary War. ]]> 2016-03-05 02:47:39 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99161992 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99163343 The era of the steamboat began in America in 1787 when John Fitch (1743-1798) made the first successful trial of a forty-five-foot steamboat on the Delaware River on August 22, 1787, in the presence of members of the Constitutional Convention. Fitch later built a larger vessel that carried passengers and freight between Philadelphia and Burlington, New Jersey.]]> 2016-03-05 03:50:42 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99163343 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99163469 Ship transportation is the process of moving people, goods, etc. by boat, ship over a water body. This is frequently undertaken for purposes of commerce, recreation or military objectives.]]> 2016-03-05 03:57:09 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99163469 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99163641 A clipper was a very fast sailing ship of the middle third of the 19th century. Clippers sailed all over the world, primarily on the trade routes between the United Kingdom and its colonies during the California Gold Rush. Dutch clippers were built beginning in the 1850's for the tea trade and passenger service to Java. The boom years of the clipper ship era began in 1843 as a result of a growing demand for a more rapid delivery of tea from China. It continued under the stimulating influence of the discovery of gold in California and Australia in 1848 and 1851, and ended with the opening of the Suez Canal in 1869.]]> 2016-03-05 04:06:22 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99163641 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99165314 The first ocean liners were built by the United States. They were called packet ships. These packet ships were around 100 feet in length, typically had three sails, the middle being the tallest.Robert Fultan, who was an american, designed a paddle steamer called the Clemont that crossed the Hudson River.]]> 2016-03-05 05:43:30 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99165314 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99165711 By the end of 1885, there was a switch from steam powered boats to oil as fuel with the invention of diesel powered ships due to the invention of the diesel engine by Herbert Akroyd Stuart.  ]]> 2016-03-05 06:05:10 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99165711 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99212274 The idea for a nuclear-powered submarine was first proposed by the Naval Research Laboratory's Ross Gunn in 1939.The United States launched the USS Nautilus, the first nuclear submarine, in 1954. Nautilus could remain underwater for up to four months without resurfacing.After overcoming many obstacles, including steam generation problems, radiation leaks, and other difficulties, the first nuclear submarine based on these combined efforts, K-3 "Leninskiy Komsomol" of the Project 627 "Kit"-class, called a November- Class submarine by NATO, entered service in the Soviet Navy in 1958.]]> 2016-03-06 07:31:19 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99212274 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99212551 In 1956, the hovercraft was invented by Christopher Cockerell. A hovercraft is a vehicle supported on a cushion of air supplied by a powered fan mounted on the craft. Dubbed a "man-made flying saucer", the hovercraft is propelled on a cushion of air created by its own fan power. The hovercraft, which has controls very similar to those in a helicopter, can reach speeds of up to 25-knots and it is hoped that at some stage in the future it will be able to cross the English Channel in as little as 20 minutes.]]> 2016-03-06 07:39:55 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99212551 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99212719 Container ships (sometimes spelled containerships), cargo ships that carry all of their load in truck-size intermodal containers, in a technique called containerization made transportation of bulk easier after it's invention in 1967. The first ships were designed to carry standardized load units.  The earliest container ships after Second World War were converted tankers, built up from surplus T2 tankers after World War II. In 1951, the first purpose-built container vessels began operating in Denmark, and between Seattle and Alaska.The first commercially successful container ship was the Ideal X, a T2 tanker, owned by Malcom McLean, which carried 58 metal containers between Newark, New Jersey and Houston Texas on its first voyage.]]> 2016-03-06 07:47:13 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99212719 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213113 The first oil tankers were developed in the 1860s and were driven by wind with sails. In 1873, the Vaderland, a ship built by Palmers Shipbuilding and Iron Company, was the first oil tanker powered by steam engines.An oil tanker is a large ship designed to move oil around the world. Their size depends on whether they travel along inland or coastal routes and the amount of oil they carry. Oil tankers carry around 2,000,000,000 metric tons of oil each year]]> 2016-03-06 08:02:18 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213113 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213526 The birth of leisure cruising began with the formation of the Peninsular and Oriental Steam Navigation company in 1822. A cruise ship or cruise liner is a passenger ship used for pleasure voyages, where the voyage itself and the ship's amenities are a part of the experience, as well as the different destinations along the way. Transportation is not the prime purpose, as cruise ships operate mostly on routes that return passengers to their originating port, so the ports of call are usually in a specified region of a continent. There are even "cruises to nowhere" or "nowhere voyages" where the ship makes 2–3 night round trips without any ports of call. ]]> 2016-03-06 08:12:55 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213526 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213734 The invention of hydrofoils IN 1906 was one of the most revolutionary developments in the history of marine engineering. Hydrofoils are vessels that use wing-like foils below the hull in order to reach greater speeds on the water. The "wings" are submerged so that the hull can be above the water, which allows the boat to go much faster since water is about 1,000 times more dense than air. When Italian inventor Enrico Forlanini built a full-scale hydrofoil boat in 1906, the technology behind traveling on the sea took a hyper-leap. With a ladder system of foils under its hull, the winged ship reached a top speed of 68 km/h using a 60 hp (45 kW) engine driving two counter-rotating air props. Remember, the top speed of ships was about 40-50 km/h at this time.

]]> 2016-03-06 08:19:40 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213734 jyotkaursandhu https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213922 Water Jet Propelled cargo ships made water travel much quicker. It is a multi-section, prime-mover ship comprising at least one non propelled, cargo-carrying body section, hydraulically coupled to a pair of prime-mover end sections which are propelled by a water-jet propulsion and steering system. Rotatable water jets, turnable through an angle of 360 DEG , are coupled to a high-pressure water pumping system, which produces a high velocity stream of water which is ejected from the rotatable water jets to steer and propell the ship.]]> 2016-03-06 08:26:51 UTC https://padlet.com/jyotkaursandhu/n2pnbv3bbuzf/wish/99213922