With only three moving parts in the electric motor, electric propulsion systems are designed to last for two decades or more. |
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The fires knocked out a number of vital systems, including main propulsion, and she was left wallowing in 25 ft waves driven by gale-force winds. |
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There was rhythmic propulsion and vigor in the fast sections, yet the quartet never exaggerated the music's pulse. |
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The jet engine and the rocket engine have different nozzles because they are harnessing two different kinds of propulsion. |
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Chabot played decades before the advent of television, jet propulsion, and the Internet. |
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Cruise missiles are typically low-flying guided missiles that use jet propulsion to allow sustained flight. |
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And before this venture, she worked at NASA's jet propulsion laboratory in Pasadena. |
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A commuter van from NASA's jet propulsion laboratory tumbled 20 feet down a mountain road this morning. |
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With a jet propulsion motor, retracting wheels and a speedboat-like hull, the Aquada's makers say it is powerful enough to pull a water-skier. |
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All larvae that were rejected after an attack were alive as determined by movements of legs and jet propulsion. |
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The vessel's shallow draft and water jet propulsion give it tremendous flexibility and maneuverability over conventional ship forms. |
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The combination of the twin hull and water jet propulsion provides very high and very responsive manoeuvrability. |
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He simply did not understand nuclear power, jet propulsion, or the new space age. |
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Evolution, or whatever passes for it in Dalekland, means they now have a form of jet propulsion that enables them to fly. |
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Awkward swimmers, frogfish overcome this problem by using jet propulsion to improve their poor swimming ability. |
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I don't know that it's something we could be made to understand, as if it were jet propulsion or differential calculus. |
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Each story was a report, essentially a series of gags, rather than a story with its own comic jet propulsion. |
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He's a man with many of America's jet propulsion geniuses under his purview. |
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Beavers have large webbed hind feet and a moderately long but highly flattened tail, which is used for propulsion in the water. |
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On this scale, one may now rank the different propulsion systems available to different types of civilizations. |
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The outer windings seem to provide both the extra rigidity needed for motility in structured media and better propulsion in low viscosity media. |
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The propulsion system provides a maximum submerged speed of 33 knots and a surface speed of 10 knots. |
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Euve did not have an on-board propulsion system to allow engineers to control the spacecraft's re-entry. |
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The installation of an air-independent propulsion system might be considered in a future refit or upgrade program. |
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We developed a multilink bending mechanism imitating anguilliform propulsion of organisms in water. |
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Ultimately, for travel to distant star systems, the tremendous energy available in particle annihilation will be applied in propulsion. |
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Unlike the Soyuz, the orbital module was equipped with its own propulsion, solar power, and control systems, allowing autonomous flight. |
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Various propulsion schemes have been proposed, from nuclear fusion to antimatter to laser sails. |
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An aeroplane requires a set of wings for lift, wing flaps and rear rudder for control and engines for propulsion. |
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Power boats, he says, rely solely on an engine for propulsion and usually are not stable enough for sailing open seas. |
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A number of experimental methods of spacecraft propulsion are based on magnetohydrodynamic principles. |
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The Royal Navy's carriers will, at 65,000 tonnes, be smaller, but they are likely to have the same propulsion system. |
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She tried to back up, but the bike's propulsion systems were malfunctioning. |
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The invention relates to a propulsion system for a fast seagoing ship, especially a naval ship. |
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Ion propulsion is a method of propulsion that uses electrical rather than chemical forces to generate thrust for a spacecraft. |
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They has previously used nuclear energy to power spacecraft but never in a propulsion system. |
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British shipowners, however, had been slow to build tankers and in the tramp traders had lagged behind in adopting diesel propulsion. |
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Most aquatic animals use the jet-stream propulsion in a form of propagating a transverse wave along the body from head to tail. |
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Electromagnetic propulsion could take us to the heliopause at a speed unachievable by conventional spacecraft. |
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Nine minutes later, and the jet propulsion of Samuel allowed him to leave red shirts in his slipstream to fasten on to a Henry through ball. |
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The profile conveys its sportive nature and combines a high-performance propulsion system with the comfort of a traditional motor yacht. |
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Nuclear energy remains an attractive potential means of propulsion for future spacecraft. |
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Another major achievement is the use of ion propulsion technology for satellite station-keeping. |
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The ship's propulsion system is based on two steam turbine engines each producing 50,000 hp together with four high-pressure boilers. |
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It has an air-cushioned catamaran hull and waterjet propulsion, which provides high speed and manoeuvrability. |
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The program includes new avionics and propulsion and new structural elements including the wings. |
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While the propulsion system does have a slightly higher price tag, replacing an expensive outdrive could be a thing of the past. |
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A key element of the mission would be the hi-tech electric propulsion system used to power the spacecraft, said Dr Walker. |
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Accordingly, most sail-ships carry a secondary propulsion system for emergency maneuvering and sailing against the sun. |
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As the name implies, it is a hovercraft type of vehicle with motorcycle steering and propulsion. |
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It will be a rear wheel drive full hybrid making it able to travel at low speeds under electric propulsion alone. |
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The M45 propulsion system has three-stage solid fuel rocket motors producing hypersonic speed. |
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The first, traditional balloons, are pear-shaped, carry a basket suspended underneath, but lack any means of propulsion or guidance. |
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The first phase develops, fabricates, integrates and tests prototype propulsion systems and power packs. |
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A laser differs from ordinary light because it is coherent light, but that is pretty much irrelevant for propulsion purposes. |
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Research in collaboration with Peugeot has developed propulsion units rather like hamsters running inside a drum. |
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Fratantoni and his colleagues field-tested this propulsion system about 2 weeks ago in an ocean basin in the Bahamas that's more than 2 km deep. |
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This propulsion concept could be used as the engine for an interstellar probe. |
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Prior to the final touch down, the spacecraft shuts down the propulsion engine and enters into a free fall descent. |
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Not content with four linked diesel engines, it also has a gas turbine that can deliver 33,000 horse-power driving a water jet propulsion system. |
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The ship's propulsion system is a combined gas turbine and gas turbine arrangement. |
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The propulsion system drives two shafts with seven-bladed fixed-pitch propellers. |
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The units will provide auxiliary power to the vehicles and will not be used for propulsion. |
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Because he found it harder to gain purchase with his feet, he was using his knees for propulsion, rubbing them red in the process. |
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Contributors to the collection address these metaphors of propulsion and seizure. |
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In the fast ferry industry the water jet is becoming the predominant propulsion of choice. |
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Kitesurfing involves riding a small board over water while gaining propulsion from the wind by means of a large kite. |
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I flew downward but with a burst of propulsion I was able to stop my descent. |
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This kick has more forward propulsion and causes the hips to rise, just like in butterfly. |
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All sea snakes have flattened compressed paddle-like tails for propulsion in water. |
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This is obviously beneficial, given that more propulsion helps us to move forwards. |
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In electric traction, the first inventions for propulsion of vehicles were by battery-stored power. |
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The latter ended up drifting without navigation or propulsion for two hours. |
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They feed by day and by night, and forage by swimming underwater, using their wings for propulsion. |
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With more effort my propulsion through the water increased, although I still used my hands for balance. |
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There are, though, two half-hearted subplots which give some vague sense of propulsion. |
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The propulsion and power systems are controlled from the Machinery Control Room. |
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Learning how to minimise drag has a far greater impact than maximising propulsion. |
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Towards the stern, the propulsion was mangled, the diesel-electric engine still trying to turn. |
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Extending control to further dimensions and adding rocket motors for propulsion produced guided missiles. |
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They consisted of launching full-scale missile dummies with a first stage propulsion system and a simplified command system. |
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I discovered that forward propulsion is considerably easier and improbably fast when using two umbrellas as ski sticks, although your head gets wet. |
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Nuclear propulsion pay will now be received by sub lieutenants and lieutenants at category A levels on completion of their engineer officer of the watch board. |
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Part of the body cavity has become an organ for jet propulsion. |
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However, the propulsion device of a rocket can be called either a rocket motor or a rocket engine, and usage here seems not to have settled on one or the other. |
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The pilot returned to his writing and work on a system of jet propulsion. |
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Perchlorate is the substance that has served since the 1940s as an oxidizer in solid rocket fuel for more effective propulsion for space shuttles and missiles. |
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This uses a hybrid propulsion system, consisting of ducted fans, to move in microgravity and a differential traction system to move in normal gravity. |
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Organic abnormalities of deglutition may be related to initiation of the swallowing reflex in the oropharynx or to propulsion of the food bolus through the esophagus. |
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Locomotion in cephalopods is accomplished mainly by jet propulsion. |
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Improvements include increased payload share of ship displacement, stealthy design, advanced propulsion system and combat systems with modular open architecture. |
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I was happy that the wrecks of Champion and Iona were still there, giving divers the chance to see a method of propulsion that is now almost extinct. |
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A ballistic missile is accelerated by rocket propulsion and guided by internal controls, though once its fuel is spent it then coasts to its target. |
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The aerospace industry itself comprises companies producing aircraft, guided missiles, space vehicles, aircraft engines, propulsion units, and related parts. |
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Daughter In The House Of Fools and Mikazuki relying on a more rhythmic and harmonic propulsion utilising a disjointed funk and Eastern sounding harmonics respectively. |
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The principle of jet propulsion involves one of Newton's Laws of Motion. |
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It certainly cannot sail under its own power, as 80 percent of the electricity generated on board is used for propulsion. |
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Ziolkowsky began as a science fiction writer in the late 1800s, but later laid down some of the fundaments of rocket propulsion that are still used today. |
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These mostly focus on propulsion and transport, but 4M is a different concept. |
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For perciform fishes, the pectoral fin and tail are known to play important roles in propulsion and there is now a substantial literature on the function of these fins. |
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Boost velocity control is achieved by burning all boost propulsion stages to burnout, shaping the trajectory to use all the energy, without thrust termination. |
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It will be the first European probe using electric propulsion. |
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When most people think of space travel they typically think of rockets, spaceships, propulsion systems, spacesuits, and structures to ship to Moon or Mars colonies to live in. |
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Those of us in the industry that are not privy to the details of the propulsion system guess the pearls are the result of a pulse jet type systems. |
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Like squids and octopuses, cuttlefishes have a funnel for jet propulsion, but unlike the other two, they also have an internal, oval-shaped bony chamber that fills with gas. |
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They were armed with a ram, relied on oars for propulsion and their deep v-shaped lower hulls had a significant advantage in speed and manoeuvrability. |
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He said the two countries share technology back-and-forth on avionics, propulsion, materials and many other aspects of missilery. |
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A newly-built cargo vessel towed by the innovative wind propulsion of the Hamburg-based company SkySails has set sail from Germany for Venezuela. |
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The different navigations she had to pass through for this purpose were such that only an independent method of propulsion would be available. |
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If aircraft performance were ever to increase beyond such a barrier, a way would have to be found to use a different propulsion mechanism. |
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These are used in electrical power generation, for powering water, natural gas, or oil pumps, and providing propulsion for ships and locomotives. |
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There are a large number of different types of jet engines, all of which achieve forward thrust from the principle of jet propulsion. |
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A water jet, or pump jet, is a marine propulsion system that utilizes a jet of water. |
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The algebraic sum of all these forces is delivered to the airframe for propulsion. |
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An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power. |
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The most common reaction propulsion engines flown are turbojets, turbofans and rockets. |
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The ATV would form the basis of a propulsion unit for NASA's new manned spacecraft. |
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It was an effective means of propulsion under ideal conditions but otherwise had serious drawbacks. |
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The development of screw propulsion relied on the following technological innovations. |
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Steam turbines were extensively applied for propulsion of large ships throughout most of the 20th century. |
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In recent decades, reciprocating Diesel engines, and gas turbines, have almost entirely supplanted steam propulsion for marine applications. |
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The whole London Underground network uses fourth rail and others use the linear motor for propulsion. |
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Such rocket technology has also been used for the delivery of mail by rocket and is used as propulsion for most model rockets. |
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By the 1830s, ships had begun to convert to steam propulsion, so the Age of Sail and the classical idea of pirates in the Caribbean ended. |
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Mixed power locomotives, utilising steam and diesel propulsion, have been produced in Russia, Britain and Italy. |
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The propulsion forces are the forward reaction of the water on the oars while in the water. |
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By the end of the war, turbojet engines were replacing piston engines as the means of propulsion, further increasing aircraft speed. |
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It was the first verified submarine capable of independent underwater operation and movement, and the first to use screws for propulsion. |
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Diesel electric propulsion became the dominant power system and equipment such as the periscope became standardized. |
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They move as if they were bilaterally symmetrical, with an arbitrary leg selected as the symmetry axis and the other four used in propulsion. |
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These normally beat so that the propulsion stroke is away from the mouth, although they can also reverse direction. |
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The flagellar movement produces forward propulsion and also a turning force. |
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They have a cartilaginous fluke at the end of their tails that is used for propulsion. |
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Many of these ferries are traditional reaction ferries, a type of cable ferry that uses the current flow of the river to provide propulsion. |
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In combat, the variability of wind power made rowing the chief means of propulsion. |
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Submerged, the ship could manage 50 nautical miles at 5 knots using battery electric propulsion. |
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The mine is propelled to its intended position by propulsion equipment such as a torpedo. |
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Galleys continued in use in the Mediterranean until the advent of steam propulsion. |
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The blades can either be flat for general use, or spooned for faster propulsion. |
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With its body fat providing buoyancy, the bear swims in a dog paddle fashion using its large forepaws for propulsion. |
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The arquebus did not rely on the physical strength of the user for propulsion of the projectile, making it easier to find a suitable recruit. |
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Most of the larger cable ferries angle themselves in the stream to gain part of their propulsion from the current, as a reaction ferry. |
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The syngas is typically used as fuel, including automotive propulsion, or as a chemical feedstock. |
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Tergiversator transmitted into the water carrier and escort propulsion noises and active sonar transmissions. |
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Conductor Julian Wachner, using much-reduced forces supplemented by a tall theorbo, fused everything together with buoyant propulsion. |
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Solar sails collect charged particles emanating from the sun to provide propulsion. |
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Unlike most spacecraft, which use thrusters to adjust their orbits, it has a highly efficient propulsion system called an ion engine. |
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Smart-1 was designed to test a new means of propulsion called the ion engine. |
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The Voltec electric propulsion system includes a 16-kWh T-shaped battery, an electric drive unit, and a four-cylinder engine-generator. |
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The mechanisms of propulsion generation by the flutter kick and dolphin kick, while using fins, were also explained by Colman, et al. |
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But Fireboat 2 sets a new standard of agility for fireboats, thanks to the innovative design of the Voith cycloidal propulsion system. |
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The SBIRS propulsion subsystem consists of 18 reaction engine assemblies, a fuel tank, two oxidizer tanks, and a liquid apogee engine. |
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The first mechanically driven submarine was the 1863 French Plongeur, which used compressed air for propulsion. |
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The primary use for fresh water is to provide feedwater for the reactor and steam propulsion plants. |
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It is also available for showers, sinks, cooking and cleaning once propulsion plant needs have been met. |
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After WWII, with the development of the homing torpedo, better sonar systems, and nuclear propulsion, submarines also became able to hunt each other effectively. |
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Since the limitations of the propulsion systems of early submarines forced them to operate surfaced most of the time, their hull designs were a compromise. |
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He found the relaxed atmosphere fresh and exciting and actually began to excel in many areas of flight systems, propulsion, and even xenogeography. |
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A reliable means of propulsion for the submerged vessel was only made possible in the 1880s with the advent of the necessary electric battery technology. |
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This also suffered due to the deforestation of Bermuda, as well as the advent of metal ships and steam propulsion, for which it did not have raw materials. |
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Limited experiments with solar electric propulsion have been performed, notably the manned Solar Challenger and Solar Impulse and the unmanned NASA Pathfinder aircraft. |
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Sea urchins have no visible eyes, legs, or means of propulsion, but can move freely over hard surfaces using adhesive tube feet, working in conjunction with the spines. |
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However, although very powerful, at reasonable flight speeds rockets are very inefficient and so jet propulsion technology stalled for hundreds of years. |
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A ship's engineering department consists of the members of a ship's crew that operates and maintains the propulsion and other systems on board the vessel. |
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Caesium and mercury were used as a propellant in early ion engines designed for spacecraft propulsion on very long interplanetary or extraplanetary missions. |
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Specific emphasis will be on stealth, hydrodynamics, hydroacoustics and propulsion designs to permit technology insertion into current and future submarines. |
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In the early days of diesel railroad propulsion development, electric, hydraulic and mechanical power transmission systems were all employed with varying degrees of success. |
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Since the motive power of screw propulsion is delivered along the shaft, a thrust bearing is needed to transfer that load to the hull without excessive friction. |
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At the transition point, it becomes a supercritical fluid with industrial uses that include decaffeinating coffee, spray paint propulsion, fiber manufacture, and soil cleanup. |
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During this period, naval warfare underwent a comprehensive transformation, brought about by steam propulsion, metal ship construction, and explosive munitions. |
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Although a balloon has no propulsion system, a degree of directional control is possible through making the balloon rise or sink in altitude to find favorable wind directions. |
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In the final furlong at Doncaster the fluentness of his forward propulsion was akin to striding out between departure gates on an airport conveyor belt. |
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Winslow joined Boeing in 1962 as a research engineer, specializing in propulsion technology for hydrofoils, and later worked on several commercial airliner programs. |
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The Coast Guard has experimented with nonexplosive devices for fouling propulsion or steering systems, including both surface-and air-delivered entanglement systems. |
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It had considerable influence on ship development, encouraging the adoption of screw propulsion by the Royal Navy, in addition to her influence on commercial vessels. |
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Becoming reliable, and propelled by screw rather than paddlewheels, the technology changed the design of ships for faster, more economic propulsion. |
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This helps ensure a steady stream of power to the SAS-51's propulsion equipment and components that rely on electricity such as the rudder machines, ballonet fans and valves. |
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Stability was restored, but once the re-entry propulsion was activated, the crew was told to prepare to come home before the end of their only day in orbit. |
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