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Auguste Rateau
Auguste Rateau (; 13 October 1863 – 13 January 1930) was an engineer and industrialist born in Royan, France, specializing in turbines. Biography After studies, first at the École Polytechnique and then at the École des Mines de Paris, he began his career as a teacher at the École des Mines de Saint-Étienne from 1888 to 1897. He then embarked on an industrial career exploiting turbines. He manufactured fans for mines, blowers for steel mills, water pumps, and steam turbines for ships. To this end, he created a design office in Paris and, in 1903, the ''Société pour l’exploitation des appareils Rateau'', which moved in 1917 to La Courneuve where he opened a factory two years later. The company has since been integrated into Alstom, and La Courneuve's premises are still operated by GE Power Service. This entity manages the maintenance of turbomachines, turbo-pumps and turbocompressors installed on nuclear, thermal and industrial sites in France and in some parts of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royan
Royan (; in the Saintongeais dialect; ) is a commune and town in the south-west of France, in the Departments of France, department of Charente-Maritime in the Nouvelle-Aquitaine region. Capital of the Côte de Beauté, Royan is one of the main French Atlantic coastal resort towns, and has five beaches, a marina for over 1,000 boats, and an active fishing port. As of 2013, the population of the greater urban area was 48,982. The town had 19,029 inhabitants in 2021. Royan is located on the peninsula of Arvert, at the mouth of the Gironde estuary on its eastern shore. Royan was once of strategic importance, coveted in particular by the Visigoths and the Vikings. During the Reformation the city became a Protestant stronghold, and was besieged and destroyed by King Louis XIII of France (ruled 1610–43). During the Bourbon Restoration in France, Bourbon Restoration (1814–1830), and especially during the Second French Empire, Second Empire (1852–1870), Royan was celebrated for i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbo-pump
A turbopump is a fluid pump with two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together. They were initially developed in Germany in the early 1940s. The most common purpose of a turbopump is to produce a high-pressure fluid for feeding a combustion chamber. While other use cases exist, they are most commonly found in liquid rocket engines. There are two common types of pumps used in turbopumps: a centrifugal pump, where the pumping is done by throwing fluid outward at high speed, or an axial-flow pump, where alternating rotating and static blades progressively raise the pressure of a fluid. Axial-flow pumps have small diameters but give relatively modest pressure increases. Although multiple compression stages are needed, axial flow pumps work well with low-density fluids. Centrifugal pumps are far more powerful for high-density fluids but require large diameters for low-density fluids. Histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbines
A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced can be used for generating electrical power when combined with a generator.Munson, Bruce Roy, T. H. Okiishi, and Wade W. Huebsch. "Turbomachines." Fundamentals of Fluid Mechanics. 6th ed. Hoboken, NJ: J. Wiley & Sons, 2009. Print. A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Modern steam turbines frequently employ both reaction and impulse in the same unit, typically varying the degree of reaction and impulse from the blade root to its periphery. History Hero of Alexandria demonstrated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Turbines
A steam turbine or steam turbine engine is a machine or heat engine that extracts thermal energy from pressurized steam and uses it to do mechanical work utilising a rotating output shaft. Its modern manifestation was invented by Sir Charles Parsons in 1884. It revolutionized marine propulsion and navigation to a significant extent. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century. The largest steam turbine ever built is the 1,770 MW Arabelle steam turbine built by Arabelle Solutions (previously GE Steam Power), two units of which will be installed at Hinkley Point C Nuclear Power Station, England. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Royan
The term "the people" refers to the public or common mass of people of a polity. As such it is a concept of human rights law, international law as well as constitutional law, particularly used for claims of popular sovereignty. In contrast, a people is any plurality of persons considered as a whole. Used in politics and law, the term "a people" refers to the collective or community of an ethnic group or nation. Concepts Legal Chapter One, Article One of the Charter of the United Nations states that "peoples" have the right to self-determination. Though the mere status as peoples and the right to self-determination, as for example in the case of Indigenous peoples (''peoples'', as in all groups of indigenous people, not merely all indigenous persons as in ''indigenous people''), does not automatically provide for independent sovereignty and therefore secession. Indeed, judge Ivor Jennings identified the inherent problems in the right of "peoples" to self-determination, as i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930 Deaths
Events January * January 15 – The Moon moves into its nearest point to Earth, called perigee, at the same time as its fullest phase of the Lunar Cycle. This is the closest moon distance at in recent history, and the next one will be on January 1, 2257, at . * January 26 – The Indian National Congress declares this date as Independence Day, or as the day for Purna Swaraj (Complete Independence). * January 28 – The first patent for a field-effect transistor is granted in the United States, to Julius Edgar Lilienfeld. * January 30 – Pavel Molchanov launches a radiosonde from Pavlovsk, Saint Petersburg, Slutsk in the Soviet Union. February * February 10 – The Việt Nam Quốc Dân Đảng launch the Yên Bái mutiny in the hope of ending French Indochina, French colonial rule in Vietnam. * February 18 – While studying photographs taken in January, Clyde Tombaugh confirms the existence of Pluto, a celestial body considered a planet until redefined as a dwarf planet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1863 Births
Events January * January 1 – Abraham Lincoln signs the Emancipation Proclamation during the third year of the American Civil War, making the abolition of slavery in the Confederate States of America an official war goal. The signing proclaimed the freedom of 3.1 million of the nation's four million slaves and immediately frees 50,000 of them, with the rest freed as the Union Army advances. This event marks the start of America's Reconstruction era, Reconstruction Era. * January 2 – Master Lucius Tar Paint Company (''Teerfarbenfabrik Meister Lucius''), predecessor of Hoechst AG, Hoechst, as a worldwide Chemical, chemical manufacturing brand, founded in a suburb of Frankfurt am Main, Germany. * January 4 – Founding date of the New Apostolic Church, a Christian and chiliastic church, in a schism with the Catholic Apostolic Church in Hamburg, Germany. * January 7 – In the Cantons of Switzerland, Swiss canton of Ticino, the village of Bedretto is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Academy Of Sciences
The French Academy of Sciences (, ) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific method, scientific research. It was at the forefront of scientific developments in Europe in the 17th and 18th centuries, and is one of the earliest Academy of Sciences, Academies of Sciences. Currently headed by Patrick Flandrin (President of the academy), it is one of the five Academies of the . __TOC__ History The Academy of Sciences traces its origin to Colbert's plan to create a general academy. He chose a small group of scholars who met on 22 December 1666 in the King's library, near the present-day Bibliothèque nationale de France, Bibliothèque Nationale, and thereafter held twice-weekly working meetings there in the two rooms assigned to the group. The first 30 years of the academy's existence were relatively informal, since no statutes had as yet been laid down for the ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Legion Of Honour
The National Order of the Legion of Honour ( ), formerly the Imperial Order of the Legion of Honour (), is the highest and most prestigious French national order of merit, both military and Civil society, civil. Currently consisting of five classes, it was originally established in 1802 by Napoleon, Napoleon Bonaparte, and it has been retained (with occasional slight alterations) by all later French governments and regimes. The order's motto is ' ("Honour and Fatherland"); its Seat (legal entity), seat is the Palais de la Légion d'Honneur next to the Musée d'Orsay, on the left bank of the Seine in Paris. Since 1 February 2023, the Order's grand chancellor has been retired General François Lecointre, who succeeded fellow retired General Benoît Puga in office. The order is divided into five degrees of increasing distinction: ' (Knight), ' (Officer), ' (Commander (order), Commander), ' (Grand Officer) and ' (Grand Cross). History Consulate During the French Revolution, all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commander (order)
Commander (; ; ; ; ), or Knight Commander, is a title of honor prevalent in chivalric orders and fraternal orders. The title of Commander occurred in the medieval military order (society), military orders, such as the Knights Hospitaller, for a member senior to a Knight. Variations include Knight Commander, notably in English, sometimes used to denote an even higher rank than Commander. In some orders of chivalry, Commander ranks above (i.e. Officer (armed forces), Officer), but below one or more ranks with a prefix meaning 'Great', e.g. in French, in German, (using an equivalent suffix) in Spanish, in Italian, and in Dutch (, 'Grand Commander'), Grand Cross. France History The rank of in the French orders comes from the Middle Ages military order (monastic society), military orders, in which low-level administrative houses were called and were governed by . In the Modern Age, the French Kings created chivalric orders which mimicked the military order's ranks. * The Order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
