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Aachen Flugzeugbau
Aachen Flugzeugbau was a German aircraft manufacturer of the early 20th century, established around the time of World War I. With the end of the war, the prohibition on powered flight in Germany, the firm began to specialize in sailplane construction, and in 1921 became known as Aachener Segelflugzeugbau, producing designs by Wolfgang Klemperer. It was purchased by Junkers in 1923 Events January–February * January 9 – Lithuania begins the Klaipėda Revolt to annex the Klaipėda Region (Memel Territory). * January 11 – Despite strong British protests, troops from France and Belgium occupy the Ruhr area, t .... In 1923 the K. F. glider-related light airplane (also a Klemperer design) was in production. In 1924 a two-seat low-wing monoplane was also flown. References * {{cite book , last=Gunston , first=B. , title=World Encyclopaedia of Aircraft Manufacturers: From the Pioneers to the Present Day , publisher=Naval Institute Press , year=1993 , isbn=978-1-55 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, production of goods, and communication. Their density facilitates interaction between people, government organisations and businesses, sometimes benefiting different parties in the process, such as improving efficiency of goods and service distribution. Historically, city-dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization, more than half of the world population now lives in cities, which has had profound consequences for g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aachen
Aachen ( ; ; Aachen dialect: ''Oche'' ; French and traditional English: Aix-la-Chapelle; or ''Aquisgranum''; nl, Aken ; Polish: Akwizgran) is, with around 249,000 inhabitants, the 13th-largest city in North Rhine-Westphalia, and the 28th-largest city of Germany. It is the westernmost city in Germany, and borders Belgium and the Netherlands to the west, the triborder area. It is located between Maastricht (NL) and Liège (BE) in the west, and Bonn and Cologne in the east. The Wurm River flows through the city, and together with Mönchengladbach, Aachen is the only larger German city in the drainage basin of the Meuse. Aachen is the seat of the City Region Aachen (german: link=yes, Städteregion Aachen). Aachen developed from a Roman settlement and (bath complex), subsequently becoming the preferred medieval Imperial residence of Emperor Charlemagne of the Frankish Empire, and, from 936 to 1531, the place where 31 Holy Roman Emperors were crowned Kings of the Germans. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1921 In Aviation
This is a list of aviation-related events from 1921: Events * Mexicana de Aviación begins service. * The Imperial Japanese Navy acquires its first rigid and semi-rigid airships. * The Italian General Giulio Douhet publishes his highly influential book ''Command of the Air''. In it, he argues that the ability of aircraft to fly over armies and navies renders those forces of secondary importance; that the vastness of the sky makes defense against bombers impossible; that only offensive bombing to destroy the enemys air force can allow a country to achieve command of the air; that once it is achieved, a bombing campaign can be carried out against enemy "vital centers", including industry, transportation, government, communications, and "the will of the people;" and that success against enemy civilian morale in particular would be the key to victory. * When the Italian Chief of the Naval Staff Admiral Paolo Thaon di Revel argues for the development of aircraft carriers, saying "t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolfgang Klemperer
Dr. Wolfgang Benjamin Klemperer (January 18, 1893 – March 25, 1965) was born in Dresden, Germany, the son of the Austrian nationals Leon and Charlotte Klemperer. He was in his time a prominent aviation and aerospace scientist and engineer, who ranks among the pioneers of early aviation. He is probably best known for his work on ''Properties of Rosette Configurations of Gravitating Bodies in Homographic Equilibrium'', which have been named after him as Klemperer rosettes. Klemperer was engaged in the development of airships or zeppelins, both in Germany and the US, high altitude ballons, specialized optics, a high-speed wide-angle cine-camera, analogue computers, equipment for data processing, and flight simulators. He became the preeminent missile scientist of Douglas Aircraft Corporation and in 1958 the director of the guided missile research section, staff assistant to the vice-president, and director of product development. Throughout his career he published regularly, oft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junkers (Aircraft)
Junkers Flugzeug- und Motorenwerke AG (JFM, earlier JCO or JKO in World War I, English: Junkers Aircraft and Motor Works) more commonly Junkers , was a major German aircraft and aircraft engine manufacturer. It was founded there in Dessau, Germany, in 1895 by Hugo Junkers, initially manufacturing boilers and radiators. During World War I and following the war, the company became famous for its pioneering all-metal aircraft. During World War II the company produced the German army's Luftwaffe planes, as well as piston and jet aircraft engines, albeit in the absence of its founder, who had been removed by the Nazis in 1934. History Early inter-war period In the immediate post-war era, Junkers used their J8 layout as the basis for the F-13, first flown on 25 June 1919 and certified airworthy in July of the same year. This four passenger monoplane was the world's first all-metal airliner. Of note, in addition to significant European sales, some twenty-five of these airplanes w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1923 In Aviation
This is a list of aviation-related events from 1923: Events * The Gallaudet Aircraft Corporation is absorbed by the Consolidated Aircraft Corporation. * During 1923, French Breguet 14T bis Sanitaire air ambulances evacuate 870 wounded French personnel from the Levant and French Morocco. January * Air Union is created by the merger of ''Compagnie des Messageries Aériennes'' (CMA) with ''Grands Express Aériens'' (CGEA). * January 1 **The French aviator Joseph Sadi-Lecointe sets a new air speed record, averaging 335 km/hr (208 mph) at Istres, France. **Canada′s Air Board (Canada), Air Board is officially absorbed into the Department of National Defence (Canada), Department of National Defence. The Canadian Air Force (1920–24), Canadian Air Force becomes responsible for the control and regulation of all civil aviation in Canada. * January 9 or 17 – The Cierva C.4, designed by Juan de la Cierva, Juan de la Cierva y Cordoniu and piloted by Alejandro Gomez Spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
