Jet engine - Jet engine A jet engine is a type of air-breathing engine, often used on aircraft. The principle of all jet engines is the same. Air is drawn in at the front and compressed. Fuel is then added and the resulting mixture burned. The combustion greatly increases the pressure of the gases which are then exhausted out of the rear of the engine. The process can be seen to be the same as a normal four stroke cycle, but with the processes - induction, compression, ignition and exhaust - taking place continuously. The engine generates thrust because of the acceleration of the air through it - the equal and opposite force this acceleration produces (Newton's third law) is thrust. A jet engine takes a relatively small mass of.
Internal-combustion engine - Internal-combustion engine An internal-combustion engine is any engine that operates by burning its fuel inside the engine. This can be contrasted with external combustion engines such as steam engines and Stirling engines, which burn their fuel outside the engine. Jet engines and gas turbines use internal combustion, but the term 'internal-combustion engine' is normally used only to refer to engines in which combustion is intermittent (and usually featuring reciprocating machinery). The internal-combustion engine was invented by Nikolaus August Otto. Nikola Tesla devised an electric igniter for gasoline engines. His designs are nearly identical to ideas which deal with the same process which modern internal combustion engines use. The de Havilland Gypsy Queen engine, powering Dove and Heron propeller aircraft. The most common internal combustion engines are the gasoline.
Inline engine - Inline engine An inline engine is a piston engine that has its pistons arranged in cylinders in rows, in (a) line. This is as opposed to the radial engine, where the pistons are placed in individual cylinders, arranged like the spokes of a wheel around the central crankshaft. Inline engines represent the vast majority of piston engines today. Almost all 4-cylinder engines use the inline design. They are considerably easier to build because the cylinder banks and engine block can be milled from a single block of metal. This simplicity is offset somewhat by the common need for liquid cooling. Inline engines are also much smaller in volume than designs like the radial, and can be mounted in any direction..
Inertial propulsion engine - Inertial propulsion engine An inertial propulsion engine, or inertia drive, is any one of a class of devices that purport to produce a linear motion with no net momentum exchange. Invariably the devices fail to operate under controlled conditions, and are found to rely on a non-linear effect of the supports they sit on. Classic examples include devices that inch along a tabletop or when floating in water, but stop working once they are suspended or in vacuum. There are hundreds of such devices, but typical components include either vibational or rotating masses, in which one portion of the cyclical motion is high-speed, and the other low-speed, or alternately high and low impulse. The result is that for some of the motion there is a high force being.
Inline-six engine - Inline-six engine The inline-six engine is also known as the straight six or slant six. Its six cylinderss are configured in a single linear bank, thus inline. The firing order and mechanical arrangement of these engines make them self balancing, which means that they are capable of running with little vibration. Some cars/trucks known to have the I-6 engine: Jeep, AMC (Eagle, Concorde), GM (Chevrolet Trailblazer/Oldsmobile Bravada), BMW (323, M3 roadster) Diesel I-6 engines of large displacement are used in various industrial applications due to their smooth running self balanced operation..
Inference engine - Inference engine An inference engine tries to derive answers from a knowledge base..
Ivor the Engine - Ivor the Engine Ivor the Engine was the first animation by Oliver Postgate and Peter Firmin. It started off in black and white and when remade became colour. Ivor is a steam train on a small railway in a corner of Wales. He turned out to be green. He works for the Merioneth and Llantisilly Rail Traction Company Limited. Ivor's owner was Jones the Steam (the reason for his name is people in Wales often have the same name such as Jones, Morgan or Evans, so they use their profession to define their surname) who has a very strong Welsh accent. In the first series Ivor gained three organ pipes in order to join the local choir, which was his ambition. Before that he just had a.
H engine - H engine An H engine (or H-block) is an engine configuration in which the cylinders are aligned so that if viewed from the front appear to be in a horizontal letter H. An H engine can be viewed as two flat engines, one atop the other. The "two engines" each have their own crankshaft, which are then geared together at one end for power-take-off. This leads to a worse power-to-weight ratio than simpler configurations with only one shaft. The only obvious advantage of the H configuration is to allow the building of reasonably short engines with more than 12 cylinders, their compact size being useful as aircraft engines where their small size allows for better aerodynamics. The H configuration is therefore very uncommon. Known examples are:.
Heat engine - Heat engine A heat engine performs the conversion of heat energy to work by exploiting the temperature gradient between a hot "source" and a cold "sink". Heat is transferred to the sink from the source, and in this process some of the heat is converted into work. The theoretical maximum efficiency of any heat engine is defined by the Carnot Cycle. The carnot heat engine (the ideal imaginary heat engine) has an efficency equal to (T1 - T2)/T1 where T1 is the temperature of the hot source and T2 is the temperature of the cold sink. Examples of everyday heat engines include: the steam engine, the diesel engine, and the gasoline (petrol) engine in an automobile. All of these familiar heat engines are powered by the expansion.
Kalpana Chawla - of the earth, logging more than 375 hours in space. During STS-87, she was responsible for deploying the Spartan Satellite which malfunctioned forcing two other astronauts to go on a spacewalk to capture the solar satellite. A five-month NASA investigation blamed the error on the flight crew and ground control. She was fully exonerated (although this did not stop some reporters from making direspectful comments about her involvement in the mishap in the days after her death in the explosion of the final Columbia mission). After being selected for a second flight, Chawla lived at the Lyndon B Johnson Space Center in Houston, Texas, undergoing extensive training. Chawla's mission got delayed in July 2002 when NASA engineers identified three cracks on the shuttle's second engine's liquid hydrogen flow liner. Over six.
Karmann Ghia - to produce than the strictly assembly line produced Beetle; this was reflected in the Karmann Ghia's higher price tag. The design and prototype were well received by Volkswagen executives, and in August, 1955 the first Karmann Ghia was created in Osnabruck, Germany. Public reaction to the curvy Karmann Ghia was excellent, and over 10,000 were sold in the first year, exceeding Volkswagen's expectations. Since the first Karmann Ghia's used the same 36hp engine as the Beetle, the car was not suitable as a true sports car; however the car's beautiful looks and "Beetle reliable" parts made up for this shortfall. In 1958 a convertible version was introduced. The car was slightly redesigned for the 1960 model year. The most notable changes were the car's front "nostril" grills (which were widened), and.
Kart - with no differential Table of contents showTocToggle("show","hide") 1 Contruction 1.1 Chassis 1.2 Motor and Fuel 1.3 Tyress 2 Racing Contruction Normally, the kart is of extremely minimal design and is often powered by a single-piston engine intended for a lawnmower or chainsaw. A tubular steel-frame is used and there is unlikely to be any suspension. Wheels are much smaller than used for a normal racing car and most karts do without a gearbox. Chassis The chassis is an extremely important element of the kart, as it must provide, via flex, sufficient grip of the kart (due to its not having any suspension. Chassis contruction is normally of a tubular construction, typically steel, with different grades of tube (smaller/bigger etc.) as well as their actual construction, offering different values of flexibility. Typically,.
Karl Jatho - known for its gliding capability. In contrast to the Wright Brother's plane, the wings were flat in profile and not curved. He had four witnesses for his flight. The plane was equipped with a single-cylinder 10 horsepower Buchet engine driving a two-bladed pusher propeller and made hops of up to 200 feet (60 meters), flying up to 10 feet (3-4 meters) high. In comparison Orville Wright's first controlled flight four months later was of 36 meters (120 feet) in 12 seconds although Wilbur flew 59 seconds and 852 feet later that same day. He founded a flying school and a plane factory, but did not have much success..
Kamen - first helicopter July, 1949 : K-225 An improved version, the U.S. Navy buys two and Coast Guard one for $25,000 each. Later, they will receive the H-22 designation. December 1951 : A modified K-225 equipped with a Boeing 502 engine becomes the world's first gas turbine powered helicopter , ushering in the turbine age for helicopters. This aircraft is now at the Smithsonian 1953 : Kaman produced the first electrically powered drone April 1953 : HOK (OH-43) 1954 : K-16 A V/STOL designed around a rotoprop March 1954 : A modified Kaman HTK-1 becomes the world's first twin-turbine powered helicopter September, 1956 : HH-43 Huskie A variant of the OH-43, equipped with a Lycoming T-53 turbine engine HH-43B Rotor diameter: 14.33 m each Length: 7.62 m Height: 4.74 m Weight: 2000.
KC-135 Stratotanker - (37,648 kilograms) of cargo. In Southeast Asia, KC-135 Stratotankers made the air war different from all previous aerial conflicts. Midair refueling brought far-flung bombing targets within reach. Combat aircraft, no longer limited by fuel supplies, were able to spend more time in target areas. AMC manages more than 546 total aircraft inventory Stratotankers, of which the Air Force Reserve and Air National Guard fly 292 of those in support of AMC's mission. General Characteristics Primary Function: Aerial refueling and airlift Prime Contractor: The Boeing Company Power Plant: KC-135R/T, CFM International CFM-56 turbofan engines; KC-135E, Pratt & Whitney TF-33-PW-102 turbofan engines Thrust: KC-135R, 21,634 pounds each engine; KC-135E, 18,000 pounds each engine Wingspan: 130 feet, 10 inches (39.88 meters) Length: 136 feet, 3 inches (41.53 meters) Height: 41 feet, 8 inches (12.7.
Kenya - opposition groups allowed the regime of Daniel arap Moi, in power from 1978 until 2002, to be reelected for four terms. Kenya is well placed to serve as an engine of growth in East Africa, but its economy is stagnating because of poor management and uneven commitment to reform. In 1993, the government of Kenya implemented a program of economic liberalization and reform that included the removal of import licensing, price controls, and foreign exchange controls. With the support of the World Bank, IMF, and other donors, the reforms led to a brief turnaround in economic performance following a period of negative growth in the early 1990s. Kenya's real GDP grew 5% in 1995 and 4% in 1996, and inflation remained under control. Growth slowed in 1997-99 however. Political violence damaged.
Kerosene - now mainly used as a fuel in jet engines. Its use a cooking fuel is mostly restricted to less developed countries, where it is usually less refined and contains impurities and even debris. Jet engine fuel, also called avtur, is supposed to be high-grade kerosene that produces less smoke. Kerosene is also used in various types of lamp: see kerosene lamp. Abraham Pineo Gesner (1797-1864) named it in 1854 from the Greek word keros (wax). It is called kerosene in the United States and Australia, and paraffin in the United Kingdom. It is also sometimes called kerosine or coal oil..
Kent (disambiguation) - introduce smoke filters in 1952 Kent, the Swedish rock band HMS Kent, a ship The Duke of Kent The Kingdom of Kent The Earl of Kent Ford Kent is an engine used in for instance Ford Anglia Fort Kent, Maine The Kent Applicative Operating System, a computer operating system Kent Acres, Delaware Kent City, Michigan Kent Group National Park, in Tasmania, Australia Kent Narrows, Maryland The Kent Recursive Calculator, a programming language Kentville, Nova Scotia New Kent Road in London New Kent County, Virginia.
Kelly v. Arriba Soft Corporation - LEXIS 1786) is a court case between a commercial photographer and a search engine company. As of September, 2003, it appears that US search engines may use thumbnails of images (size limits still not determined) and the issue of inline linking to full size images instead of going to the original site is unresolved. Caution suggests obtaining legal advice; linking to the original site in its own window appears a safe choice; with requesting permission remaining the most prudent course of action. Table of contents showTocToggle("show","hide") 1 Facts 2 Case history 3 Fair use analysis 3.1 Purpose and character of the use. 3.2 Nature of the copyrighted work. 3.3 Amount and substantiality of portion used. 3.4 Effect of the use upon the potential market for or value of the copyrighted work..
Kegworth air disaster - vehicles damaged). The aircraft was on a scheduled flight from Heathrow airport to Belfast in Northern Ireland, the attempted unscheduled landing at East Midlands being due to an in-flight emergency which had occurred. After take-off from Heathrow, the aircraft was climbing through 28,000 feet when there was a failure of the no.1 engine due to a turbine blade detachment. Subsequently, the crew misidentified the failed engine and shut down the correctly functioning no. 2 engine. With little power, the aircraft did not have the available range to reach the emergency destination airport, and hit the ground short of the runway while attempting to land. The damaged no. 1 engine continued to run and provided some power, but because the crew were unaware that they had shut down the wrong engine, did.
