A ferry is a watercraft that carries passengers, and sometimes vehicles and cargo, across a body of water. A small passenger ferry with many stops, such as in Venice, Italy, is sometimes called a water taxi or water bus.
Ferries form a part of the public transport systems of many waterside cities and islands, allowing direct transit between points at a capital cost much lower than bridges or tunnels. Ship connections of much larger distances (such as over long distances in water bodies like the Mediterranean Sea) may also be called ferry services, and many carry vehicles.
The profession of the ferryman is embodied in Greek mythology in Charon, the boatman who transported souls across the River Styx to the Underworld.
Speculation that a pair of oxen propelled a ship having a water wheel can be found in 4th century Roman literature "Anonymus De Rebus Bellicis". Though impractical, there is no reason why it could not work and such a ferry, modified by using horses, was used in Lake Champlain in 19th-century America. See Experiment (horse powered boat).
In 1850 the roll-on roll-off (ro-ro) ferry, Leviathan designed to carry freight wagons efficiently across the Firth of Forth in Scotland started to operate between Granton, near Edinburgh, and Burntisland in Fife. The vessel design was highly innovative and the ability to move freight in great quantities and with minimal labour signalled the way ahead for sea-borne transport, converting the ro-ro ferry from an experimental and marginal ship type into one of central importance in the transport of goods and passengers.
In 1871, the world's first ferry ship was created in Istanbul. The iron steamship, named Suhulet (meaning 'ease' or 'convenience') was designed by the general manager of Şirket-i Hayriye (Bosporus Steam Navigation Company), Giritli Hüseyin Haki Bey and built by a British shipbuilder. It weighed 157 tons. It was long, wide, and had a draft of . It was capable of travelling up to 6 knots with the side wheel turned by its 450-horsepower, single-cylinder, two-cycle steam engine.
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A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds. The hydrofoil usually consists of a winglike structure mounted on struts below the hull, or across the keels of a catamaran in a variety of boats (see illustration).
The Mackinac Bridge (ˈmækənɔː ; also referred to as the Mighty Mac or Big Mac) is a suspension bridge that connects the Upper and Lower peninsulas of the U.S. state of Michigan. It spans the Straits of Mackinac, a body of water connecting Lake Michigan and Lake Huron, two of the Great Lakes. Opened in 1957, the bridge is the world's 27th-longest main span and is the longest suspension bridge between anchorages in the Western Hemisphere.
New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is the most densely populated major city in the United States. The city is more than twice as populous as Los Angeles, the nation's second-largest city. New York City is situated at the southern tip of New York State. Situated on one of the world's largest natural harbors, New York City comprises five boroughs, each of which is coextensive with a respective county.
In the present study, a high energy pulsed laser is used to generate a millimetric cavitation bubble within a water °ow over a symmetric hydrofoil. The bubble is initiated at di®erent locations in the vicinity of the hydrofoil leading edge. A high speed ca ...
In the present study, a high energy pulsed laser is used to generate a millimetric cavitation bubble within a water flow over a symmetric hydrofoil. The bubble is initiated at different locations in the vicinity of the hydrofoil leading edge. A high-speed ...
EPFL Doctoral Conference in Mechanics - EDCM20102010
Objectifs Ce travail pratique de diplôme a pour objectif de résoudre plusieurs problématiques urbaines concrètes de la ville de Sète: restructurer l'entrée principale de la ville, réaménager des zones délaissées, proposer un nouveau système de régulation d ...