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Siemens-Halske
Siemens & Halske AG (or Siemens-Halske) was a German electrical engineering company that later became part of Siemens. It was founded on 12 October 1847 as ''Telegraphen-Bauanstalt von Siemens & Halske'' by Werner von Siemens and Johann Georg Halske. The company, located in Berlin-Kreuzberg, specialised in manufacturing electrical telegraphs according to Charles Wheatstone's patent of 1837. In 1848, the company constructed one of the first European telegraph lines from Berlin to Frankfurt am Main. Siemens & Halske was not alone in the realm of electrical engineering. In 1887, Emil Rathenau had established ''Allgemeine Elektrizitäts-Gesellschaft'' (AEG), which became a long-time rival. In 1881, Siemens & Halske built the Gross-Lichterfelde Tramway, the world's first electric streetcar line, in the southwestern Lichterfelde suburb of Berlin, followed by the Mödling and Hinterbrühl Tram near Vienna, the first electrical interurban tram in Austria-Hungary. 1882 saw the open ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' (Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vienna
en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST = CEST , utc_offset_DST = +2 , blank_name = Vehicle registration , blank_info = W , blank1_name = GDP , blank1_info = € 96.5 billion (2020) , blank2_name = GDP per capita , blank2_info = € 50,400 (2020) , blank_name_sec1 = HDI (2019) , blank_info_sec1 = 0.947 · 1st of 9 , blank3_name = Seats in the Federal Council , blank3_info = , blank_name_sec2 = GeoTLD , blank_info_sec2 = .wien , website = , footnotes = , image_blank_emblem = Wien logo.svg , blank_emblem_size = Vienna ( ; german: Wien ; ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamo
file:DynamoElectricMachinesEndViewPartlySection USP284110.png, "Dynamo Electric Machine" (end view, partly section, ) A dynamo is an electrical generator that creates direct current using a commutator (electric), commutator. Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later Electric power conversion, electric-power conversion devices were based, including the electric motor, the Alternating current, alternating-current alternator, and the rotary converter. Today, the simpler alternator dominates large scale Electricity generation, power generation, for efficiency, reliability and cost reasons. A dynamo has the disadvantages of a commutator (electric), mechanical commutator. Also, converting alternating to direct current using rectifiers (such as vacuum tubes or more recently via Solid state (electronics), solid state technology) is effective and usually economical. History Induction with pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Generator
In electricity generation, a generator is a device that converts motive power (mechanical energy) or fuel-based power (chemical energy) into electric power for use in an external circuit. Sources of mechanical energy include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks. The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday. Generators provide nearly all of the power for electric power grids. In addition to electromechanical designs, photovoltaic and fuel cell powered generators utilize solar power and hydrogen-based fuels, respectively, to generate electrical output. The reverse conversion of electrical energy into mechanical energy is done by an electric motor, and motors and generators have many similarities. Many motors can be mechanically driven to generate electricity; frequently they make acceptable manual generators. Terminology Electromagnetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Petersburg
Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), is the second-largest city in Russia. It is situated on the Neva River, at the head of the Gulf of Finland on the Baltic Sea, with a population of roughly 5.4 million residents. Saint Petersburg is the fourth-most populous city in Europe after Istanbul, Moscow and London, the most populous city on the Baltic Sea, and the world's northernmost city of more than 1 million residents. As Russia's Imperial capital, and a historically strategic port, it is governed as a federal city. The city was founded by Tsar Peter the Great on 27 May 1703 on the site of a captured Swedish fortress, and was named after apostle Saint Peter. In Russia, Saint Petersburg is historically and culturally associated with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woolwich
Woolwich () is a district in southeast London, England, within the Royal Borough of Greenwich. The district's location on the River Thames led to its status as an important naval, military and industrial area; a role that was maintained throughout the 16th to 20th centuries. After several decades of economic hardship and social deprivation, the area now has several large-scale urban renewal projects. Geography Woolwich is situated from Charing Cross. It has a long frontage to the south bank of the Thames river. From the riverside it rises up quickly along the northern slopes of Shooter's Hill towards the common, at and the ancient London–Dover Road, at . The ancient parish of Woolwich, more or less the present-day wards Woolwich Riverside and Woolwich Common, comprises . This included North Woolwich, which is now part of the London Borough of Newham. The ancient parishes of Plumstead and Eltham became part of the civil parish of Woolwich in 1930. Parts of the wards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemensstadt
Siemensstadt () is a locality (''Ortsteil'') of Berlin in the district (''Bezirk'') of Spandau. History The locality emerged when the company Siemens & Halske (S & H), one of the predecessors of today's Siemens, bought land in the area, in order to expand production of S & H and their subsidiary Siemens-Schuckertwerke (SSW) as well. On the initiative of Georg Wilhelm von Siemens S & H started to build new factories in 1899. Soon also residential buildings were erected. The locality was incorporated into Berlin on 1 October 1920 by the Greater Berlin Act. Geography Siemensstadt is situated in the eastern side of Spandau district. It borders with Spandau (locality), Haselhorst, Tegel (in Reinickendorf), Charlottenburg-Nord and Westend (both in Charlottenburg-Wilmersdorf). The Großsiedlung Siemensstadt is situated close to Siemensstadt but in Charlottenburg-Nord. Transport Siemensstadt is served by the Berliner U-Bahn line U7 at the stations of Pau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spree (river)
The Spree ( ; wen, Sprjewja, cs, Spréva) is, with a length of approximately , the main tributary of the River Havel. The Spree is much longer than the Havel, which it flows into at Berlin-Spandau; the Havel then flows into the Elbe at Havelberg. The river rises in the Lusatian Highlands, that are part of the Sudetes, in the Lusatian part of Saxony, where it has three sources: the historical one called ''Spreeborn'' in the village of Spreedorf, the water-richest one in Neugersdorf, and the highest elevated one in Eibau. The Spree then flows northwards through Upper and Lower Lusatia, where it crosses the border between Saxony and Brandenburg. After passing through Cottbus, it forms the Spree Forest, a large inland delta and biosphere reserve. It then flows through Lake Schwielochsee before entering Berlin, as '' Müggelspree'' The Spree is the main river of Berlin, Brandenburg, Lusatia, and the settlement area of the Sorbs, who call the River Sprjewja. For a very short d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Wilhelm Von Siemens
Georg Wilhelm von Siemens (30 July 1855, Berlin – 14 October 1919, Arosa, Switzerland) was a German telecommunications industrialist of the Siemens family. Known as Wilhelm von Siemens, he was the second son of Werner von Siemens by first wife Mathilde Drumann, and was a general partner of the family company Siemens. Then under the name ''Siemens & Halske'' (S & H), the company was incorporated in 1897, with Wilhelm's uncle Carl Heinrich von Siemens as its first chairman of the Supervisory Board. Wilhelm's elder brother Arnold von Siemens succeeded his uncle as chairman of the board from 1904 until his death in 1918, while Wilhelm served as chairman of the board of the sister company, Siemens-Schuckertwerke AG, from 1903 until 1918. After his brother Arnold's death in 1918, he succeeded him as chairman of Siemens & Halske AG until his own death the following year. His successor in both chairmanships became his younger (half-)brother, Carl Friedrich von Siemens. Married in 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnold Von Siemens
Arnold von Siemens (13 November 1853 in Berlin – 29 April 1918 in Berlin) was a German telecommunications industrialist of the Siemens family, one of the successors on his family's company Siemens. Life The eldest son of Werner von Siemens, inventor and founder of the ''Siemens & Halske'' electrical company, and his first wife (and cousin second times removed) Mathilde Drumann, took over the Vienna sales representation of his father's company in 1879 and established a production factory there in 1883. In 1887 he opened the company's first office in Japan.Siemens websitAugust 1, 2012 – 125 Years Siemens in Japan (1887–2012) Retrieved on August 12, 2013 In 1892 he founded a factory for electrical locomotives in Chicago, in order to challenge General Electric's market leadership in the US. The factory however burnt down completely in August 1894. When his father retired in 1890, Arnold succeeded him as CEO. Siemens & Halske (S & H) was incorporated in 1897, with Arnold's uncl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halensee
Halensee () is a ''locality'' (''Ortsteil'') of Berlin in the district (''Bezirk'') of Charlottenburg-Wilmersdorf. Halensee was established as a villa and tenement settlement in about 1880, in the suburb of Wilmersdorf, which became part of Greater Berlin in 1920. In 2004, Halensee became its own ''Ortsteil''. With an area of 1.27 km2 it is the smallest Ortsteil in Berlin after Hansaviertel. History Halensee was the site of the German shooting championship in 1921. On 26 September, one Jannich won the competition firing an Ortgies semi-automatic pistol. Geography The locality, the smallest of the Charlottenburg-Wilmersdorf district, is situated in its centre and borders with Charlottenburg, Wilmersdorf, Schmargendorf, Grunewald and Westend. It is bounded by the Bundesautobahn 100 ''(Stadtring)'' in the west and the ''Cicerostraße'', a branch-off of the Kurfürstendamm in the east. The locality is named after the small , which however is part of the neighbouring Grunew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trolleybus
A trolleybus (also known as trolley bus, trolley coach, trackless trolley, trackless tramin the 1910s and 1920sJoyce, J.; King, J. S.; and Newman, A. G. (1986). ''British Trolleybus Systems'', pp. 9, 12. London: Ian Allan Publishing. .or trolleyDunbar, Charles S. (1967). ''Buses, Trolleys & Trams''. Paul Hamlyn Ltd. (UK). Republished 2004 with or 9780753709702.) is an electric bus that draws power from dual overhead wires (generally suspended from roadside posts) using spring-loaded trolley poles. Two wires, and two trolley poles, are required to complete the electrical circuit. This differs from a tram or streetcar, which normally uses the track as the return path, needing only one wire and one pole (or pantograph). They are also distinct from other kinds of electric buses, which usually rely on batteries. Power is most commonly supplied as 600-volt direct current, but there are exceptions. Currently, around 300 trolleybus systems are in operation, in cities and towns in 4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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