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De Havilland Iris
The de Havilland Iris was a British four-cylinder, liquid-cooled, horizontally opposed aero engine. Notable as the first aero engine to be designed by Geoffrey de Havilland it was produced in small numbers between 1909 and 1910 by Iris Cars Ltd of Willesden from which it took its name. Design and development By 1908 Geoffrey de Havilland had designed and built two motorcycle engines and was planning his first aircraft, the de Havilland Biplane No. 1. He had studied the engine used by the Wright brothers and believed that he could design a similar unit with an improved power-to-weight ratio. Whilst working as a designer for the Motor Omnibus Construction Company in London he produced drawings for his new engine over a period of three to four months and commissioned the Iris Cars Ltd, where his brother Ivon de Havilland had been the Chief Designer, to build it at a cost of £250. The design featured a horizontally opposed, four-cylinder layout with a single camshaft o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ball Bearing
A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other. Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races. History Although bearings had been developed since ancient times, the first m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Richard Simms
Frederick Richard Simms (12 August 1863 – 22 April 1944)M.I.M.E., M.I.A.E., M.I.Ae.E., M.S.E.; Member of the Institution of Mechanical Engineers, Member of the Institution of Automobile Engineers, Member of the Institution of Aeronautical Engineers, Member of the Society of Engineers was a British mechanical engineer, businessman, prolific inventor and motor industry pioneer. Simms coined the words "petrol" and "motorcar".Simms wrote from Berlin to his solicitor in London on 8 February 1891 telling Hendriks he had come to an agreement with Daimler and in that letter he uses ''petrol'' and ''motorcar''. Later Gottlieb Daimler claimed the word petrol had been in common use in England when he lived there in the 1860s.Death of Mr. F. R. Simms, ''The Times'', Monday, 24 April 1944; pg. 6 He founded the Royal Automobile Club, and the Society of Motor Manufacturers and Traders. Family and education Simms was born in Hamburg "of an old Warwickshire family", the son of Frederick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spark Plug
A spark plug (sometimes, in British English, a sparking plug, and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a ceramic insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil or magneto. The spark plug's metal shell is screwed into the engine's cylinder head and thus electrically grounded. The central electrode protrudes through the porcelain insulator into the combustion chamber, forming one or more spark gaps between the inner end of the central electrode and usually one or more protuberances or structures attached to the inner end of the threaded shell and designated the ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oliver Joseph Lodge
Sir Oliver Joseph Lodge, (12 June 1851 – 22 August 1940) was a British physicist and writer involved in the development of, and holder of key patents for, radio. He identified electromagnetic radiation independent of Hertz's proof and at his 1894 Royal Institution lectures ("''The Work of Hertz and Some of His Successors''"), Lodge demonstrated an early radio wave detector he named the "coherer". In 1898 he was awarded the "syntonic" (or tuning) patent by the United States Patent Office. Lodge was Principal of the University of Birmingham from 1900 to 1920. Lodge was also noted for his Spiritualist beliefs and pseudoscientifc research into life after death, a topic on which he wrote many books, including the best-selling ''Raymond; or, Life and Death'' (1916), describing what he believed to be detailed messages through a medium from his deceased adult son who was killed in World War I. Life Oliver Lodge was born in 1851 at 'The Views', Penkhull, then a rural village hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carburetor
A carburetor (also spelled carburettor) is a device used by an internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the venturi tube in the main metering circuit, however various other components are also used to provide extra fuel or air in specific circumstances. Since the 1990s, carburetors have been largely replaced by fuel injection for cars and trucks, however carburetors are still used by some small engines (e.g. lawnmowers, generators and concrete mixers) and motorcycles. Diesel engines have always used fuel injection instead of carburetors. Etymology The name "carburetor" is derived from the verb ''carburet'', which means "to combine with carbon," or in particular, "to enrich a gas by combining it with carbon or hydrocarbons." Thus a carburetor mixes intake air with hydrocarbon-based fuel, such as petrol or autogas (LPG). The name is spelled "carburetor" in American English ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claudel-Hobson
Claudel-Hobson was a series of British carburettors manufactured by H. M. Hobson Ltd. Introduced in 1908, they were widely used on British car and aircraft engines in the early 20th century. Applications included Sunbeam automobiles as well as Armstrong Siddeley, Bristol, de Havilland The de Havilland Aircraft Company Limited () was a British aviation manufacturer established in late 1920 by Geoffrey de Havilland at Stag Lane Aerodrome Edgware on the outskirts of north London. Operations were later moved to Hatfield in H ..., and Napier aircraft engines. (retrieved 1 August 2018) References External links [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight International
''Flight International'' is a monthly magazine focused on aerospace. Published in the United Kingdom and founded in 1909 as "A Journal devoted to the Interests, Practice, and Progress of Aerial Locomotion and Transport", it is the world's oldest continuously published aviation news magazine. ''Flight International'' is published by DVV Media Group. Competitors include Jane's Information Group and ''Aviation Week''. Former editors of, and contributors include H. F. King, Bill Gunston, John W. R. Taylor and David Learmount. History The founder and first editor of ''Flight'' was Stanley Spooner. He was also the creator and editor of ''The Automotor Journal'', originally titled ''The Automotor Journal and Horseless Vehicle''.Guide To British Industrial History: Biographies: ''S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, massa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replica
A 1:1 replica is an exact copy of an object, made out of the same raw materials, whether a molecule, a work of art, or a commercial product. The term is also used for copies that closely resemble the original, without claiming to be identical. Also has the same weight and size as original. Replicas have been sometimes sold as originals, a type of fraud. Most replicas have more innocent purposes. Fragile originals need protection, while the public can examine a replica in a museum. Replicas are often manufactured and sold as souvenirs. An inverted replica complements the original by filling its gaps. Sometimes the original never existed. It is logically impossible for there to be a replica of something that never existed. Replicas and reproductions can be related to any form of licensing an image for others to use, whether it is through photos, postcards, prints, miniature or full size copies they represent a resemblance of the original object. Not all incorrectly attributed it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland
The de Havilland Aircraft Company Limited () was a British aviation manufacturer established in late 1920 by Geoffrey de Havilland at Stag Lane Aerodrome Edgware on the outskirts of north London. Operations were later moved to Hatfield in Hertfordshire. Known for its innovation, de Havilland was responsible for a number of important aircraft, including the Moth biplane which revolutionised aviation in the 1920s; the 1930s Fox Moth, a commercial light passenger aircraft; the wooden World War II Mosquito multirole aircraft; and the pioneering passenger jet airliner Comet. The de Havilland company became a member of the Hawker Siddeley group in 1960, but lost its separate identity in 1963. Later, Hawker Siddeley merged into what is eventually known today as BAE Systems, the British aerospace and defence business. The de Havilland name lives on in De Havilland Canada, which owns the rights to the name and the aircraft produced by de Havilland's former Canadian subsidiary, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airship
An airship or dirigible balloon is a type of aerostat or lighter-than-air aircraft that can navigate through the air under its own power. Aerostats gain their lift from a lifting gas that is less dense than the surrounding air. In early dirigibles, the lifting gas used was hydrogen, due to its high lifting capacity and ready availability. Helium gas has almost the same lifting capacity and is not flammable, unlike hydrogen, but is rare and relatively expensive. Significant amounts were first discovered in the United States and for a while helium was only available for airships in that country. Most airships built since the 1960s have used helium, though some have used hot air.A few airships after World War II used hydrogen. The first British airship to use helium was the ''Chitty Bang Bang'' of 1967. The envelope of an airship may form the gasbag, or it may contain a number of gas-filled cells. An airship also has engines, crew, and optionally also payload accommodatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
