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Alexander Lodygin
Alexander Nikolayevich Lodygin, known after immigration to US as Alexandre de Lodyguine (russian: Александр Николаевич Лодыгин; 18 October 1847 – 16 March 1923) was a Russian electrical engineer and inventor, one of the inventors of the incandescent light bulb. Alexander Nikolayevich Lodygin was born in Stenshino village, Tambov Governorate, Russian Empire. His parents were of a very old and noble family (descendants of Andrei Kobyla like Romanovs), but of very moderate means. He studied at the Tambov Cadet School (1859–1865). Then he served in the ''71st Belev regiment'', and in 1866–1868 studied at the Moscow Infantry School. Soon after graduation from his military school he retired from the military and worked as a worker at the Tula weapons factory. Timeline *1872: He decided to go to Saint Petersburg to attend lectures at Saint Petersburg Institute of Technology and to start working on an ''electrical helicopter'' (''electrolyot''). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lodygin
Lodygin (russian: Лодыгин) is a Russian masculine surname, its feminine counterpart is Lodygina. It may refer to *Alexander Lodygin Alexander Nikolayevich Lodygin, known after immigration to US as Alexandre de Lodyguine (russian: Александр Николаевич Лодыгин; 18 October 1847 – 16 March 1923) was a Russian electrical engineer and inventor, one o ... (1847–1923), Russian electrical engineer and inventor ** Lodygin (crater) on the Moon named after Alexander Lodygin * Yuri Lodygin (born 1990), Russian-Greek football goalkeeper {{surname Russian-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Filament
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation. Current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket 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. They require no external regulating equipment, have low manufacturing costs, and work equally well on either alternating current or direct current. As a result, the incandescent bulb became widely used in household and commercial lighting, for portable lighting such as table lamps, car headlamps, and flashlights, and for decorative and advertising lighting. Incandescent bulbs are much less efficient than other types of electric lighting, converting le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Engineer
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is now divided into a wide range of different fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, photovoltaic cells, electronics, and optics and photonics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics/control, and electrica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Title Of Honor
A title of honor or honorary title is a title bestowed upon individuals or organizations as an award in recognition of their merits. Sometimes the title bears the same or nearly the same name as a title of authority, but the person bestowed does not have to carry out any duties, except for ceremonial ones. In some cases, these titles are bestowed posthumously. Some examples of honorary titles from various areas are: * Academician – Honorary title (academic) * Fellow of an academic, artistic, or professional society * Freeman of the City of London * Hero of the Russian Federation * Colonel (U.S. honorary title), Honorary Colonel * Honorary degree or position, such as honorary Professor * Knight, Dame (title), Dame, or Lady's companion, Companion of an honorific order * New Knowledge Worker of Korea * People's Artist * Honorary counselors (''neuvos'') in Finland, such as Counselor of State (Finland), valtioneuvos (Counselor of State) and vuorineuvos (Counselor of Mining) Some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petersburg Institute Of Electrical Engineering
Petersburg, or Petersburgh, may refer to: Places Australia *Petersburg, former name of Peterborough, South Australia Canada * Petersburg, Ontario Russia *Saint Petersburg, sometimes referred to as Petersburg United States * Peterborg, U.S. Virgin Islands *Petersburg, Alaska * Petersburg, California * Petersburg, California, former name of Greasertown, California * Petersburg, Delaware *Petersburg, Georgia *Petersburg, Illinois *Petersburg, Indiana * Petersburg, Iowa (other) *Petersburg, Kentucky (other) *Petersburg, Boone County, Kentucky *Petersburg, Jefferson County, Kentucky *Petersburg, Michigan * Petersburg Township, Jackson County, Minnesota *Petersburg, Minnesota * Petersburg, Missouri *Petersburg, Nebraska * Petersburg, Cape May County, New Jersey * Petersburg, Morris County, New Jersey *Petersburgh, New York *Petersburg, North Carolina (other) *Petersburg, North Dakota *Petersburg, Ohio (other) *Petersburg, Pennsylvania *Petersburg, T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric GE90
The General Electric GE90 is a family of high-bypass turbofan aircraft engines built by GE Aviation for the Boeing 777, with thrust ratings from . It entered service with British Airways in November 1995. It is one of three options for the 777-200, -200ER, and -300 versions, and the exclusive engine of the -200LR, -300ER, and 777F. It was the largest jet engine, until being surpassed in January 2020 by its successor, the GE9X, which has a larger diameter fan. The GE90, however, is still more powerful than its successor, the GE9X. Development The GE90 was developed from the NASA 1970s Energy Efficient Engine, a prototype variant of the General Electric CF6. GE's GE36 Un-Ducted Fan (propfan) was meant to replace the CFM International CFM56 high-bypass turbofan which was initially uncompetitive against the rival IAE V2500. However, when the V2500 ran into technical problems, sales of the CFM56 took off. GE was not interested in having the GE36 cannibalize the CFM56, and whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tungsten
Tungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. Tungsten is a rare metal found naturally on Earth almost exclusively as compounds with other elements. It was identified as a new element in 1781 and first isolated as a metal in 1783. Its important ores include scheelite and wolframite, the latter lending the element its alternate name. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all known elements barring carbon (which sublimes at normal pressure), melting at . It also has the highest boiling point, at . Its density is , comparable with that of uranium and gold, and much higher (about 1.7 times) than that of lead. Polycrystalline tungsten is an intrinsically brittle and hard material (under standard conditions, when uncombined), making it difficult to work. However, pure single-crystalline tungsten is more ductile and can be cut with a hard-steel hacksaw. Tungsten occurs in many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Shepherd
The German Shepherd or Alsatian is a German breed of working dog of medium to large size. The breed was developed by Max von Stephanitz using various traditional German herding dogs from 1899. It was originally bred as a herding dog, for herding sheep. It has since been used in many other types of work, including disability assistance, search-and-rescue, police work, and warfare. It is commonly kept as a companion dog, and according to the Fédération Cynologique Internationale had the second-highest number of annual registrations in 2013. History During the 1890s, attempts were being made to standardise dog breeds. Dogs were being bred to preserve traits that assisted in their job of herding sheep and protecting their flocks from predators. In Germany this was practised within local communities, where shepherds selected and bred dogs. It was recognised that the breed had the necessary skills for herding sheep, such as intelligence, speed, strength and keen senses o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander II Of Russia
Alexander II ( rus, Алекса́ндр II Никола́евич, Aleksándr II Nikoláyevich, p=ɐlʲɪˈksandr ftɐˈroj nʲɪkɐˈlajɪvʲɪtɕ; 29 April 181813 March 1881) was Emperor of Russia, Congress Poland, King of Poland and Grand Duke of Finland from 2 March 1855 until Assassination of Alexander II of Russia, his assassination in 1881. Alexander's most significant reform as emperor was the emancipation reform of 1861, emancipation of Serfdom in Russia, Russia's serfs in 1861, for which he is known as Alexander the Liberator ( rus, Алекса́ндр Освободи́тель, r=Aleksándr Osvobodytel, p=ɐlʲɪˈksandr ɐsvəbɐˈdʲitʲɪlʲ). The tsar was responsible for other reforms, including reorganizing the judicial system, setting up elected local judges, abolishing corporal punishment, promoting local self-government through the ''zemstvo'' system, imposing universal military service, ending some privileges of the nobility, and promoting university e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narodnik
The Narodniks (russian: народники, ) were a politically conscious movement of the Russian intelligentsia in the 1860s and 1870s, some of whom became involved in revolutionary agitation against tsarism. Their ideology, known as Narodism, Narodnism or (russian: народничество; , similar to the German ), was a form of agrarian socialism though is often misunderstood as populism. The (; meaning 'going to the people') campaigns were the central impetus of the Narodnik movement. The Narodniks were in many ways the intellectual and political forebears and, in notable cases, direct participants of the Russian Revolution—in particular of the Socialist-Revolutionary Party, which went on to greatly influence Russian history in the early 20th century. History Narodnichestvo as a philosophy was influenced by the works of Alexander Herzen (1812–1870) and Nikolay Gavrilovich Chernyshevsky (1828–1889), whose convictions were refined by Pyotr Lavrov (1823–1900) and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Socialist
Socialism is a left-wing economic philosophy and movement encompassing a range of economic systems characterized by the dominance of social ownership of the means of production as opposed to private ownership. As a term, it describes the economic, political and social theories and movements associated with the implementation of such systems. Social ownership can be state/public, community, collective, cooperative, or employee. While no single definition encapsulates the many types of socialism, social ownership is the one common element. Different types of socialism vary based on the role of markets and planning in resource allocation, on the structure of management in organizations, and from below or from above approaches, with some socialists favouring a party, state, or technocratic-driven approach. Socialists disagree on whether government, particularly existing government, is the correct vehicle for change. Socialist systems are divided into non-market and market f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filament Lamp
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation. Current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket 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. They require no external regulating equipment, have low manufacturing costs, and work equally well on either alternating current or direct current. As a result, the incandescent bulb became widely used in household and commercial lighting, for portable lighting such as table lamps, car headlamps, and flashlights, and for decorative and advertising lighting. Incandescent bulbs are much less efficient than other types of electric lighting, converting less ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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