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Theodor Schultes
Theodor Schultes or Theodor Jakob Joseph Schultes (1901-1981) was a German engineer of radio frequency technology and a pioneer of radar technology . His best known developments include the radio measuring devices with the code names Freya, Aquarius and Jagdschloß. Education Schultes, born the son of a savings bank director, attended high school in Völklingen until he graduated from high school. After one year of practical work at the Röchling factories, he studied electrical engineering at the Technical University of Darmstadt Technical may refer to: * Technical (vehicle), an improvised fighting vehicle * Technical analysis, a discipline for forecasting the future direction of prices through the study of past market data * Technical drawing, showing how something is co ... from 1921 to 1926. He then worked there as a research assistant, from 1929 to 1933 as an assistant, and in 1934 he did his doctorate in electrical engineering and information technology. Career In 1933 he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marpingen
Marpingen is a municipality in the district of Sankt Wendel, in Saarland, Germany. It is situated approximately 8 km west of Sankt Wendel, and 25 km north of Saarbrücken. The municipality contains the urban areas Marpingen, Urexweiler, Alsweiler und Berschweiler, which have the status of Ortschaft, and Rheinstraße, which is in the administrative area of Marpingen, and Habenichts, which is in the administrative area of Urexweiler. History In 1876, at the height of the Kulturkampf, Marpingen was claimed to be the site of an apparition of the Virgin Mary, leading to a major conflict between the Prussian Government and the believers who flocked to Marpingen as a result. See also * Marian apparitions * Kulturkampf (, 'culture struggle') was the conflict that took place from 1872 to 1878 between the Catholic Church led by Pope Pius IX and the government of Prussia led by Otto von Bismarck. The main issues were clerical control of education and ecclesiastic ... Refer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1981 Deaths
Events January * January 1 ** Greece enters the European Economic Community, predecessor of the European Union. ** Palau becomes a self-governing territory. * January 10 – Salvadoran Civil War: The Farabundo Martí National Liberation Front, FMLN launches its first major offensive, gaining control of most of Morazán Department, Morazán and Chalatenango Department, Chalatenango departments. * January 15 – Pope John Paul II receives a delegation led by Polish Solidarity (Polish trade union), Solidarity leader Lech Wałęsa at the Vatican City, Vatican. * January 20 – Iran releases the 52 Americans held for 444 days, minutes after Ronald Reagan is First inauguration of Ronald Reagan, sworn in as the 40th President of the United States, ending the Iran hostage crisis. * January 21 – The first DMC DeLorean, DeLorean automobile, a stainless steel sports car with gull-wing doors, rolls off the production line in Dunmurry, Northern Ireland. * January 24 – An 1981 Dawu ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1901 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * 19 (film), ''19'' (film), a 2001 Japanese film * Nineteen (film), ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * 19 (Adele album), ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD (rapper), MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * XIX (EP), ''XIX'' (EP), a 2019 EP by 1the9 Songs * 19 (song), "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album ''Refugee (Bad4Good album), Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * Nineteen (song), "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustics
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an Acoustical engineering, acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing (sense), Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or for marking territories. Art, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technical University Of Darmstadt
Technical may refer to: * Technical (vehicle), an improvised fighting vehicle * Technical analysis, a discipline for forecasting the future direction of prices through the study of past market data * Technical drawing, showing how something is constructed or functions (also known as drafting) * Technical file, set of technical drawings * Technical death metal, a subgenre of death metal that focuses on complex rhythms, riffs, and song structures * Technical foul, an infraction of the rules in basketball usually concerning unsportsmanlike non-contact behavior * Technical rehearsal for a performance, often simply referred to as a technical * Technical support, a range of services providing assistance with technology products * Vocational education, often known as technical education * Legal technicality, an aspect of law See also * Lego Technic, a line of Lego toys * Tech (other) * Technicals (other) * Technics (other) * Technique (other) * Tec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Völklingen
Völklingen (french: Vœlklange, Moselle Franconian: ''Välglinge'') is a town in the district of Saarbrücken, in Saarland, Germany. It is situated on the river Saar, approx. 10 km west of Saarbrücken, and directly borders France. The town is known for its industrial past, the Völklinger Hütte (ironworks) being declared by UNESCO as a World Heritage Site. Subdivisions The town is divided into ten ''Stadtteile'' (quarters): * Völkingen * Fenne * Fürstenhausen * Geislautern * Heidstock * Lauterbach * Ludweiler * Luisenthal * Röchlinghöhe * Wehrden Geography Völklingen is situated on the fertile alluvial plane at the confluence of the river Rossel and of the river Köller into the river Saar. History In antiquity it was settled by Celtic tribes, then by the Romans. The Franks colonized the area between the 5th and 9th centuries. Völkingen was initially referred to as "Fulcolingas" by Durandis, Vice Chancellor to Louis the Pious in 822. Peasants living in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freya Radar
Freya was an early warning radar deployed by Germany during World War II; it was named after the Norse goddess Freyja. During the war, over a thousand stations were built. A naval version operating on a slightly different wavelength was also developed as the ''Seetakt''. Development First tests of what would become the "''Freya''" were conducted in early 1937, with initial delivery of an operational radar to the ''Kriegsmarine'' in 1938 by the GEMA company. Freya supported an early version of Identification friend or foe (IFF). Aircraft equipped with the FuG 25a "''Erstling''" IFF system could be successfully queried across ranges of over 100 km. The "AN" version gained a switchable phasing line for the antenna. Switching in the phasing line led to a phase displacement of the antenna's radiation pattern and with that, a squinting to the left or right. This enabled the system in effect to switch from the rather broad "scanning for maxima" to narrow lobe switching. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies; these are the frequencies at which energy from an oscillating current can radiate off a conductor into space as radio waves. Different sources specify different upper and lower bounds for the frequency range. Electric current Electric currents that oscillate at radio frequencies (RF currents) have special properties not shared by direct current or lower audio frequency alternating current, such as the 50 or 60 Hz current used in electrical power distribution. * Energy from RF currents in conductors can radiate into space as electromagnetic waves ( radio waves). This is the basis of radio technology. * RF current does not penetrate deeply into electrical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starnberg
Starnberg is a German town in Bavaria, Germany, some southwest of Munich. It is at the north end of Lake Starnberg, in the heart of the " Five Lakes Country", and serves as capital of the district of Starnberg. Recording a disposable per-capita income of €26,120 in 2007, Starnberg regained its status as the wealthiest town in Germany. History The town was first mentioned in 1226 under the name of ''Aheim am Würmsee''. Incorporated districts Districts (''Ortsteile'') are listed with their year of incorporation and area. *Hadorf (1978, 6.93 km²) *Hanfeld with Mamhofen (1972, 5.58 km²) *Leutstetten with Einbettl , Mühlthal , Oberdill , Petersbrunn and Schwaige (1978, 7.68 km²) *Percha with Buchhof , Heimathshausen and Selcha (1978, 6 , 07 km²) *Perchting with Landstetten , Jägersbrunn and Sonnau (1978, 11.36 km²) *Rieden (1803, 1.83 km²) *Söcking (1978, 8.17 km²) *Wangen with Fercha, Schorn, Unterschorn and Wildmoos (1978, 7.49 km²) Transport The munic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technische Universität Darmstadt
The Technische Universität Darmstadt (official English name Technical University of Darmstadt, sometimes also referred to as Darmstadt University of Technology), commonly known as TU Darmstadt, is a research university in the city of Darmstadt, Germany. It was founded in 1877 and received the right to award doctorates in 1899. In 1882, it was the first university in the world to set up a chair in electrical engineering. In 1883, the university founded the first Department of Electrical Engineering and Information Technology of TU Darmstadt, faculty of electrical engineering and introduced the world's first degree course in electrical engineering.History of the department of Electrical Engineering: (German) In 2004, it became the first German university to be declared as an autonomous university. TU Darmstadt has assumed a pioneering role in Germany. Computer science, electrical engineering, artificial intelligence, mechatronics, business informatics, political science and many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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