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AEG
ALLGEMEINE ELEKTRICITäTS-GESELLSCHAFT AG (AEG) (German : "General electricity company") was a German producer of electrical equipment founded as the Deutsche Edison-Gesellschaft für angewandte Elektricität in 1883 in Berlin
Berlin
by Emil Rathenau . After World War II its headquarters moved to Frankfurt am Main
Frankfurt am Main
. In 1967 AEG
AEG
joined with its subsidiary Telefunken
Telefunken
AG creating Allgemeine Elektricitäts-Gesellschaft AEG-Telefunken. In 1985 Daimler-Benz purchased the AEG- Telefunken
Telefunken
Aktiengesellschaft, which was renamed to AEG
AEG
Aktiengesellschaft
Aktiengesellschaft
and wholly integrated the company in 1996 into Daimler-Benz AG (1998:DaimlerChrysler )
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Franz Heinrich Schwechten
FRANZ HEINRICH SCHWECHTEN (12 August 1841 – 11 August 1924) was one of the most famous German architects of the Wilhelmine era, and contributed to the development of historicist architecture. LIFESchwechten was born in Cologne , the son of a district court judge. He attended Gymnasium , taking his Abitur in 1860, and went on to work as an apprentice of master builder Julius Carl Raschdorff, who would later design the new Berlin Cathedral . In 1861, Schwechten enrolled in the Bauakademie (Academy of Architecture) in Berlin , where he studied under Karl Bötticher and Friedrich Adler . During a practical training period following the completion of his studies in December 1863, Schwechten worked first for several months with Friedrich August Stüler , until May 1864, and then with Martin Gropius , until June 1865
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Dynamo
A DYNAMO is an electrical generator that produces direct current with the use of a commutator . Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based, including the electric motor , the alternating-current alternator , and the rotary converter . Today, the simpler alternator dominates large scale power generation, for efficiency, reliability and cost reasons. A dynamo has the disadvantages of a mechanical commutator. Also, converting alternating to direct current using power rectification devices (vacuum tube or more recently solid state ) is effective and usually economical
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Electric Motor
An ELECTRIC MOTOR is an electrical machine that converts electrical energy into mechanical energy . The reverse of this is the conversion of mechanical energy into electrical energy and is done by an electric generator , and generators and motors have much in common. Most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force. In certain applications, such as in regenerative braking with traction motors in the transportation industry, electric motors can also be used in reverse as generators to convert mechanical energy into electric power. Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators
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Artificial Waterfall
An ARTIFICIAL WATERFALL is a water feature or fountain which imitates a natural waterfall . Artificial waterfalls have long been featured in traditional Japanese gardens , where they can serve to highlight a scene or to provide focus. The classic gardening manual Sakuteiki , written in the mid-to-late 11th century, lists nine different types. The Cascata delle Marmore is an example of a man-made waterfall created by the ancient Romans . Artificial waterfalls were popular in Europe in the late 19th and early 20th centuries, including the famous waterfall in Viktoriapark in Berlin
Berlin
. An early American example is Huntington Waterfalls in Golden Gate Park
Golden Gate Park
, San Francisco, California
San Francisco, California
. In 1896, Gardening Magazine reported that it was the only artificial waterfall in a public park in North America
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Frankfurt
FRANKFURT, officially FRANKFURT AM MAIN (German: ( listen ); lit. ' Frankfurt
Frankfurt
on the Main '), is a metropolis and the largest city in the German state of Hesse
Hesse
and the fifth-largest city in Germany. Frankfurt was a city state , the Free City of Frankfurt
Free City of Frankfurt
, for nearly five centuries, and was one of the most important cities of the Holy Roman Empire ; it lost its sovereignty in 1866. In 2015, Frankfurt
Frankfurt
has a population of 732,688 within its administrative boundaries, and 2.3 million in its urban area . The city is at the centre of the larger Frankfurt Rhine-Main Metropolitan Region , which has a population of 5.5 million and is Germany\'s second-largest metropolitan region after Rhine-Ruhr
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Thomas Edison
THOMAS ALVA EDISON (February 11, 1847 – October 18, 1931) was an American inventor and businessman, who has been described as America's greatest inventor. He developed many devices that greatly influenced life around the world, including the phonograph , the motion picture camera , and the long-lasting, practical electric light bulb . Dubbed "The Wizard of Menlo Park", he was one of the first inventors to apply the principles of mass production and large-scale teamwork to the process of invention, and because of that, he is often credited with the creation of the first industrial research laboratory . Edison was a prolific inventor , holding 1,093 US patents in his name , as well as many patents in the United Kingdom, France, and Germany. More significant than the number of Edison's patents was the widespread impact of his inventions: electric light and power utilities , sound recording , and motion pictures all established major new industries worldwide
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Berlin-Gesundbrunnen
GESUNDBRUNNEN (colloquially Plumpe, i.e. pump) is a locality (Ortsteil) of Berlin in the borough (Bezirk) of Mitte . It was created as a separate entity by the 2001 administrative reform , formerly the eastern half of the former Wedding district (merged into Mitte) and locality. Gesundbrunnen has the highest percentage of non-German residents of any Berlin locality, at 35.1% as of the end of 2008. CONTENTS * 1 Geography * 2 History * 3 Transportation * 4 Famous people * 5 Photo gallery * 6 References * 7 External links GEOGRAPHYThe locality is situated in Berlin's inner city , at the north-eastern rim of the central Mitte borough. Bernauer Straße separates it from the locality of Mitte in the south and Reinickendorfer Straße from Wedding in the west
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Lauffen Am Neckar
LAUFFEN AM NECKAR (help ·info ) (Lauffen) is a town in the district of Heilbronn
Heilbronn
, Baden-Württemberg, Germany. It is situated on the river Neckar , 9 kilometres (6 miles) southwest of Heilbronn
Heilbronn
. The town is famous as the birthplace of the poet Friedrich Hölderlin and for its quality wines – in particular the “Lauffener Katzenbeißer Schwarzriesling“
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Incandescent Light Bulb
An INCANDESCENT LIGHT BULB, INCANDESCENT LAMP or INCANDESCENT LIGHT GLOBE is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence ). The filament, heated by passing an electric current through it, is protected from oxidation with a glass or quartz bulb that is filled with inert gas or evacuated . In a halogen lamp , filament evaporation is prevented by a chemical process that redeposits metal vapor onto the filament, extending its life. The light bulb is supplied with electric current by feed-through terminals or wires embedded in the glass. Most bulbs are used in a socket which provides mechanical support and electrical connections. Incandescent bulbs are manufactured in a wide range of sizes, light output, and voltage ratings, from 1.5 volts to about 300 volts
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Switch
In electrical engineering , a SWITCH is an electrical component that can "make" or "break" an electrical circuit , interrupting the current or diverting it from one conductor to another. The mechanism of a switch removes or restores the conducting path in a circuit when it is operated. It may be operated manually, for example, a light switch or a keyboard button, may be operated by a moving object such as a door, or may be operated by some sensing element for pressure, temperature or flow
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Arc Lamp
An ARC LAMP or ARC LIGHT is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, was the first practical electric light . It was widely used starting in the 1870s for street and large building lighting until it was superseded by the incandescent light in the early 20th century. It continued in use in more specialized applications where a high intensity point light source was needed, such as searchlights and movie projectors until after World War II
World War II
. The carbon arc lamp is now obsolete for all of these purposes and is only still made for very specialized purposes where a high intensity UV source is needed
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Contactor
A CONTACTOR is an electrically controlled switch used for switching an electrical power circuit, similar to a relay except with higher current ratings and a few other differences. A contactor is typically controlled by a circuit which has a much lower power level than the switched circuit, such as a 24-volt coil electromagnet controlling a 220-volt motor switch. Contactors come in many forms with varying capacities and features. Unlike a circuit breaker , a contactor is not intended to interrupt a short circuit current. Contactors range from those having a breaking current of several amperes to thousands of amperes and 24 V DC to many kilovolts. The physical size of contactors ranges from a device small enough to pick up with one hand, to large devices approximately a metre (yard) on a side. Contactors are used to control electric motors , lighting , heating , capacitor banks, thermal evaporators, and other electrical loads
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Zossen
ZOSSEN (Upper Sorbian : Sosny) is a German town in the district of Teltow-Fläming in Brandenburg
Brandenburg
, approximately 20 miles (30 km) south of Berlin
Berlin
, and next to the B96 highway . Zossen
Zossen
consists of several smaller municipalities, which were grouped together in 2003 to form the city
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Vacuum Tube
In electronics , a VACUUM TUBE, an ELECTRON TUBE, or just a TUBE (North America), or VALVE (Britain and some other regions), is a device that controls electric current between electrodes in an evacuated container. Vacuum
Vacuum
tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. This type is called a THERMIONIC TUBE or THERMIONIC VALVE. A phototube , however, achieves electron emission through the photoelectric effect . Not all electronic circuit valves/electron tubes are vacuum tubes (evacuated); gas-filled tubes are similar devices containing a gas, typically at low pressure, which exploit phenomena related to electric discharge in gases , usually without a heater. The simplest vacuum tube, the diode , contains only a heater, a heated electron-emitting cathode (the filament itself acts as the cathode in some diodes), and a plate (anode)
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Transformer
A TRANSFORMER is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction . A varying current in one coil of the transformer produces a varying magnetic field, which in turn induces a varying electromotive force (emf) or "voltage " in a second coil. Power can be transferred between the two coils through the magnetic field, without a metallic connection between the two circuits. Faraday\'s law of induction discovered in 1831 described this effect. Transformers
Transformers
are used to increase or decrease the alternating voltages in electric power applications. Since the invention of the first constant-potential transformer in 1885, transformers have become essential for the transmission , distribution , and utilization of alternating current electrical energy. A wide range of transformer designs is encountered in electronic and electric power applications
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