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Aggregat
The Aggregat series (German for "Aggregate") was a set of ballistic missile designs developed in 1933–1945 by a research program of Nazi Germany's Armed Forces (Wehrmacht). Its greatest success was the A4, more commonly known as the V-2. A1 (1933) The A1 was the first rocket design in the Aggregat series. It was designed in 1933 by Wernher von Braun in a German armed forces research program at Kummersdorf headed by Walter Dornberger. The A1 was the grandfather of most modern rockets. The rocket was long, in diameter, and had a takeoff weight of . The engine, designed by Arthur Rudolph, used a pressure-fed rocket propellant system burning ethanol and liquid oxygen, and produced 2.9 kN (660 lbf) of thrust for 16 seconds. The LOX tank was located within the fuel tank and insulated with a fiberglass material. The rocket was stabilized by a 3 axes gyroscope system in the nose, supplied by Kreiselgeräte G.m.b.H. The rocket could not be rotated for stability as with a ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregate (3D-comparison)
Aggregate or aggregates may refer to: Computing and mathematics * collection of objects that are bound together by a root entity, otherwise known as an aggregate root. The aggregate root guarantees the consistency of changes being made within the aggregate by forbidding external objects from holding references to its members. * Aggregate (data warehouse), a part of the dimensional model that is used to speed up query time by summarizing tables * Aggregate analysis, a technique used in amortized analysis in computer science, especially in analysis of algorithms * Aggregate class, a type of class supported by C++ * Aggregate data, in statistics, data combined from several measurements * Aggregate function, aggregation function, in database management is a function wherein the values of multiple rows are grouped together to form a single summary value * Aggregate Level Simulation Protocol (ALSP), a protocol and supporting software that enables simulations to interoperate with one ano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V-2 Rocket
The V-2 (german: Vergeltungswaffe 2, lit=Retaliation Weapon 2), with the technical name ''Aggregat 4'' (A-4), was the world’s first long-range guided ballistic missile. The missile, powered by a liquid-propellant rocket engine, was developed during the Second World War in Nazi Germany as a "vengeance weapon" and assigned to attack Allied cities as retaliation for the Allied bombings of German cities. The rocket also became the first artificial object to travel into space by crossing the Kármán line (edge of space) with the vertical launch of MW 18014 on 20 June 1944. Research into military use of long-range rockets began when the graduate studies of Wernher von Braun attracted the attention of the Wehrmacht. A series of prototypes culminated in the A-4, which went to war as the . Beginning in September 1944, over 3,000 were launched by the Wehrmacht against Allied targets, first London and later Antwerp and Liège. According to a 2011 BBC documentary, the attacks from r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Mueller
Fritz K. Mueller (1907 – 2001 Huntsville, Alabama, USA) was a German engineer. Mueller was hired by Kreiselgeräte Company in 1933. He developed the PIGA accelerometer. and worked on gyroscopes for Nazi Germany's ''Kriegsmarine''. Later on, he worked on the guidance and control system for the A3 test rocket, the A5, and the A4 (V-2) ballistic missile. Under Project Paperclip, Mueller emigrated to the United States on 16 November 1945 with the Argentina group. There, he worked on developing guidance systems for the PGM-11 Redstone, PGM-19 Jupiter, MGM-31 Pershing, and the Saturn I missiles. In 1960 Mueller left NASA The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding t ... for private industry. References {{DEFAULTSORT:Mueller, Fritz 1907 births 2001 deaths Early spacefli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kummersdorf
Kummersdorf is the name of an estate near Luckenwalde, around 25 km south of Berlin, in the Brandenburg region of Germany. Until 1945 Kummersdorf hosted the weapon office of the German Army which ran a development centre for future weapons as well as an artillery range. Early history In 1871, the Prussian ministry of war decided to move the artillery test range at Tegel to the Kummersdorf Forest. The new range became operational on 15 October 1875 when it was connected with the Royal Prussian Military Railway. In 1880, the first firing experiments took place on the 12 km southeast-northwest firing range. These experiments investigated the effectiveness of various fortifications, and the effects of weapons and projectiles. Total size of the Kummersdorf Firing Range was 878.1 hectares. In 1913, the dropping of bombs from the LZ 13 Hansa airship and Wright biplanes was investigated. In the 1920s, secret development started in the areas of artillery, armored forces, mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Rudolph
Arthur Louis Hugo Rudolph (November 9, 1906 – January 1, 1996) was a German rocket engineer who was a leader of the effort to develop the V-2 rocket for Nazi Germany. After World War II, the United States Government's Office of Strategic Services (OSS) brought him to the U.S. as part of the clandestine Operation Paperclip, where he became one of the main developers of the U.S. space program. He worked within the U.S. Army and NASA, where he managed the development of several systems, including the Pershing missile and the Saturn V Moon rocket. In 1984, the U.S. Government investigated him for war crimes, and he agreed to renounce his United States citizenship and leave the U.S. in return for not being prosecuted. Early life Rudolph was born in Stepfershausen, Meiningen, Germany in 1906. His family were farmers, with a long tradition in the area. His father Gustav died in 1915 while serving in World War I. Arthur and his younger brother Walter were raised by their mother, Ida. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wernher Von Braun
Wernher Magnus Maximilian Freiherr von Braun ( , ; 23 March 191216 June 1977) was a German and American aerospace engineer and space architect. He was a member of the Nazi Party and Allgemeine SS, as well as the leading figure in the development of rocket technology in Nazi Germany and later a pioneer of rocket and space technology in the United States. As a young man, von Braun worked in Nazi Germany's rocket development program. He helped design and co-developed the V-2 rocket at Peenemünde during World War II. Following the war, he was secretly moved to the United States, along with about 1,600 other German scientists, engineers, and technicians, as part of Operation Paperclip. He worked for the United States Army on an intermediate-range ballistic missile program, and he developed the rockets that launched the United States' first space satellite Explorer 1 in 1958. He worked with Walt Disney on a series of films, which popularized the idea of human space travel in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borkum
Borkum ( nds, Borkum, Börkum) is an island and a municipality in the Leer District in Lower Saxony, northwestern Germany. It is situated east of Rottumeroog and west of Juist. Geography Borkum is bordered to the west by the Westerems strait (which forms the border with the Netherlands), to the east by the Osterems strait, to the north by the North Sea, and to the south by the Wadden Sea. It is the largest and westernmost of the East Frisian Islands in the North Sea, due north of the Dutch province of Groningen. The island was formed in 1863 by two previously separate islands which were still separated by a shallow water. The seam between the former eastern and western parts is called ''Tüskendör'' ("through in between"). Climate Borkum is the only East Frisian island that is under the influence of the North Sea all year round thanks to its distance from the mainland. The maritime climate is influenced by the Gulf Stream and the west wind zone with correspondingly high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Dornberger
Major-General Dr. Walter Robert Dornberger (6 September 1895 – 26 June 1980) was a German Army artillery officer whose career spanned World War I and World War II. He was a leader of Nazi Germany's V-2 rocket programme and other projects at the Peenemünde Army Research Centre. Dornberger was born in Gießen and enlisted in 1914. In October 1918, as an artillery lieutenant Dornberger was captured by United States Marines and spent two years in a French prisoner of war camp, mostly in solitary confinement because of repeated escape attempts. In the late 1920s, Dornberger completed an engineering course with distinction at the Berlin Technical Institute, and in the Spring of 1930,Dornberger's detailed account of the V2 project was one of the first to be published by a major participant. Dornberger graduated after five years with an MS degree in mechanical engineering from the '' Technische Hochschule Charlottenburg'' in Berlin. In 1935, Dornberger received an honorary doc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Servomotor
A servomotor (or servo motor) is a rotary actuator or linear actuator that allows for precise control of angular or linear position, velocity and acceleration. It consists of a suitable motor coupled to a sensor for position feedback. It also requires a relatively sophisticated controller, often a dedicated module designed specifically for use with servomotors. Servomotors are not a specific class of motor, although the term ''servomotor'' is often used to refer to a motor suitable for use in a closed-loop control system. Servomotors are used in applications such as robotics, CNC machine, CNC machinery, and automated manufacturing. Mechanism A servomotor is a closed-loop controller, closed-loop servomechanism that uses position feedback to control its motion and final position. The input to its control is a signal (either analogue or digital) representing the position commanded for the output shaft. The motor is paired with some type of encoder (position), position encoder t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max And Moritz
''Max and Moritz: A Story of Seven Boyish Pranks'' (original: ''Max und Moritz – Eine Bubengeschichte in sieben Streichen'') is a German language illustrated story in verse. This highly inventive, blackly humorous tale, told entirely in rhymed couplets, was written and illustrated by Wilhelm Busch and published in 1865. It is among the early works of Busch, yet it already featured many substantial, effectually aesthetic and formal regularities, procedures and basic patterns of Busch's later works. Many familiar with comic strip history consider it to have been the direct inspiration for the ''Katzenjammer Kids'' and ''Quick & Flupke''. The German title satirizes the German custom of giving a subtitle to the name of dramas in the form of "Ein Drama in ... Akten" (''A Drama in ... Acts''), which became dictum in colloquial usage for any event with an unpleasant or dramatic course, e.g. "Bundespräsidentenwahl - Ein Drama in drei Akten" ('' Federal Presidential Elections - A dram ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Werner Von Fritsch
Thomas Ludwig Werner Freiherr von Fritsch (4 August 1880 – 22 September 1939) was a member of the German High Command. He was Commander-in-Chief of the German Army from February 1934 until February 1938, when he was forced to resign after he was falsely accused of being homosexual. His ousting was a major step in Adolf Hitler's establishment of tighter control over the armed forces. Just over a year later, before the outbreak of World War II, Fritsch was recalled as Colonel-in-chief of the 12th Artillery Regiment. He died in battle in Poland early in the war. Early life Fritsch was born in Benrath in the Rhine Province of the German Empire. He entered the Prussian Army at the age of 18; in 1901, he transferred to the Prussian Military Academy. In 1911, he was appointed to the German General Staff, where he served during World War I. Interwar period Weimar rule During the interwar period, Fritsch served in the Weimar Republic's Armed Forces (''Reichswehr''). In 1924, Frits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Guidance System
An inertial navigation system (INS) is a navigation device that uses motion sensors (accelerometers), rotation sensors ( gyroscopes) and a computer to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the need for external references. Often the inertial sensors are supplemented by a barometric altimeter and sometimes by magnetic sensors ( magnetometers) and/or speed measuring devices. INSs are used on mobile robots and on vehicles such as ships, aircraft, submarines, guided missiles, and spacecraft. Other terms used to refer to inertial navigation systems or closely related devices include inertial guidance system, inertial instrument, inertial measurement unit (IMU) and many other variations. Older INS systems generally used an inertial platform as their mounting point to the vehicle and the terms are sometimes considered synonymous. Overview Inertial navigation is a self-cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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