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Corps Des Mines
The ''Corps des mines'' is the foremost technical Grand Corps of the French State (grands corps de l'Etat). It is composed of the state industrial engineers. The Corps is attached to the French Ministry of Economy and Finance. Its purpose is to entice French students in mathematics and physics to serve the government and train them for executive careers in France. Members are educated at the École nationale supérieure des mines de Paris, also known as Mines ParisTech. Each year, the Corps recruits between 10 and 20 members. Most of them are alumni from École polytechnique, who are usually among the top ranked students, others come from École normale supérieure (ENS), Télécom Paris or regular graduates of the Mines ParisTech. Upon graduation, ''Corps des mines'' engineers hold executive positions in the French administration. ''Corps des mines'' engineers tend to hold top executive positions in France's major industrial companies in the course of their career. Being admit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles-Eugène Delaunay
Charles-Eugène Delaunay (9 April 1816 – 5 August 1872) was a French astronomer and mathematician. His lunar motion studies were important in advancing both the theory of planetary motion and mathematics. Life Born in Lusigny-sur-Barse, France, to Jacques‐Hubert Delaunay and Catherine Choiselat, Delaunay studied under Jean-Baptiste Biot at the Sorbonne. He worked on the mechanics of the Moon as a special case of the three-body problem. He published two volumes on the topic, each of 900 pages in length, in 1860 and 1867. The work hints at chaos in the system, and clearly demonstrates the problem of so-called "small denominators" in perturbation theory. His infinite series expression for finding the position of the Moon converged too slowly to be of practical use but was a catalyst in the development of functional analysisO'Connor & Edmund and computer algebra. Delaunay became director of the Paris Observatory in 1870 but drowned in a boating accident near Cherbourg, F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges Painvin
Georges Jean Painvin (; 28 January 1886 – 21 January 1980) was a French geologist and industrialist, best known as the cryptanalyst who broke the ADFGX/ADFGVX cipher used by the Germans during the First World War. Early life Painvin was born into a family of graduates from the École polytechnique and mathematicians from Nantes. In addition to his remarkable scientific education, the young Painvin was also a keen cello player, where in 1902 he was awarded First prize for cello at the Nantes Conservatory of Music. In 1905, Painvin passed his matriculation exam into the École polytechnique. In his second year, he opted for admission to the Corps des mines where he would make his profession. However, French military service would briefly take him away from this fulfilment. On 7 September 1907, Painvin was appointed reserve second lieutenant and assigned to the 33rd Artillery Regiment to attend his third year on obligatory military service. In 1909 and again in 1911, he attended ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schlumberger Limited
Schlumberger Limited (), doing business as SLB, is an oilfield services company. Schlumberger has four principal executive offices located in Paris, Houston, London, and The Hague. Schlumberger is the world's largest offshore drilling company. It is the biggest offshore drilling contractor (in terms of revenue) in the world. Schlumberger is incorporated in Willemstad, Curaçao as Schlumberger N.V. and trades on the New York Stock Exchange, Euronext Paris, the London Stock Exchange and SIX Swiss Exchange. Schlumberger is a Fortune Global 500 company, ranked 287 in 2016, and also listed in Forbes Global 2000, ranked 349 in 2022. History Schlumberger was founded in 1926 in Paris as the Electric Prospecting Company (french: Société de prospection électrique) by two brothers Conrad and Marcel Schlumberger from Alsace. Schlumberger supplies the petroleum industry with services such as seismic data processing, formation evaluation, well testing and directional drilling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conrad Schlumberger
Conrad Schlumberger (2 October 1878 in Gebweiler (Alsace-Lorraine) – 9 May 1936 in Stockholm) and Emile Henry Marcel Schlumberger (21 June 1884 in Gebweiler – 9 May 1953 in Val-Richer) were brothers from the region of Alsace-Lorraine, France, then a part of the German Empire. Their inventions in the area of geophysics and well logging were the beginnings of Schlumberger, Schlumberger Well Services and the entire well logging industry. Life and work Conrad and Marcel were two of six children of an affluent Alsatian Protestantism in France, Protestant family. Their father, Paul, was descended from a wealthy cotton weaving family. Their mother, Marguerite de Witt-Schlumberger, Marguerite De Witt, was a political activist. When the brothers were born, their native province Alsace was part of Germany. Their parents decided to send the brothers to Paris to be educated. Both Conrad and Marcel were educated at the top engineering schools in France; Conrad graduated from École Polyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Lebrun
Albert François Lebrun (; 29 August 1871 – 6 March 1950) was a French politician, President of France from 1932 to 1940. He was the last president of the Third Republic. He was a member of the centre-right Democratic Republican Alliance (ARD). Biography Early life Born to a farming family in Mercy-le-Haut, Meurthe-et-Moselle, he attended the École Polytechnique and the École des Mines de Paris, graduating from both at the top of his class. He then became a mining engineer in Vesoul and Nancy, but left that profession at the age of 29 to enter politics. Politics Lebrun gained a seat in the Chamber of Deputies in 1900 as a member of the Left Republican Party, later serving on the cabinet as Minister for the Colonies from 1912–1914, Minister of War in 1913 and Minister for Liberated Regions, 1917–1919. Joining the Democratic Alliance, he was elected to the French senate from Meurthe-et-Moselle in 1920, and served as Vice President of the Senate from 1925 throug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred-Marie Liénard
Alfred-Marie Liénard (2 April 1869 in Amiens – 29 April 1958 in Paris), was a French physicist and engineer. He is most well known for his derivation of the Liénard–Wiechert potentials. From 1887 to 1889 Liénard was a student at the École Polytechnique and from 1889 to 1892 at the École des mines de Paris. From 1892 to 1895 he was a mining engineer in Valencia, Marseille, and Angers. From 1895 to 1908 he was professor at the École des Mines de Saint-Étienne and from 1908 to 1911 he was professor of electrical engineering at the École des Mines de Paris. In World War I he served in the French Army. Liénard worked in the fields of electricity, magnetism, and mechanics. In 1898 (and two years after him Emil Wiechert), he derived what is now called the Liénard–Wiechert potentials. He also investigated problems related to the elasticity and strength of materials, and wrote papers on thermodynamics and hydrodynamics. Along with M. H. Chipart, Liénard developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges Friedel
Georges Friedel (19 July 1865 – 11 December 1933) was a French mineralogist and crystallographer. Life Georges was the son of the chemist Charles Friedel. Georges' grandfather was Louis Georges Duvernoy who held the chair in comparative anatomy from 1850 to 1855 at the Muséum national d'histoire naturelle. Georges studied at the École Polytechnique in Paris and the École Nationale des Mines in St. Etienne, and was a student of François Ernest Mallard. In 1893 he obtained a professorship at the École Nationale des Mines, the director of which he would later become. After the First World War, he returned as a professor at the University of Strasbourg in Alsace. Due to ill health, he took early retirement in 1930, and died in 1933. He was married with five children. Scientific works Like his teacher Mallard, Friedel concerned himself with the theories of Auguste Bravais, the founder of crystallography. Friedel was able to demonstrate the theoretical ideas of Bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Édouard Estaunié
Édouard Estaunié (4 February 1862 in Dijon – 2 April 1942 in Paris) was a French novelist. Estaunié trained as a scientist and engineer, working at the Post and Telepgraph service and training further in Holland, before turning to the novel in 1891. In 1904, he devised the word "telecommunication". He was elected to the Académie française An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary or tertiary higher learning (and generally also research or honorary membership). The name traces back to Plato's school of philosop ... in 1923. He was also a reviewer, critic, and ''homme de lettres'' as well as a novelist. Novels *''Un simple'' (1891) *''Bonne Dame'' (1891) *''Le Ferment'' (1899) *''Les choses voyent'' (1913) *''L'ascension de M. Baslèvre'' (1920) *''L'appel de la route'' (1921) *''L'infirme aux mains de lumière'' (1923) References French telecommunications engineers French electrical eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Poincaré
Jules Henri Poincaré ( S: stress final syllable ; 29 April 1854 – 17 July 1912) was a French mathematician, theoretical physicist, engineer, and philosopher of science. He is often described as a polymath, and in mathematics as "The Last Universalist", since he excelled in all fields of the discipline as it existed during his lifetime. As a mathematician and physicist, he made many original fundamental contributions to pure and applied mathematics, mathematical physics, and celestial mechanics. In his research on the three-body problem, Poincaré became the first person to discover a chaotic deterministic system which laid the foundations of modern chaos theory. He is also considered to be one of the founders of the field of topology. Poincaré made clear the importance of paying attention to the invariance of laws of physics under different transformations, and was the first to present the Lorentz transformations in their modern symmetrical form. Poincaré disc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Küss
Henry Küss (or Henry Kuss, sometimes Henri Küss, 19 June 1852 – 22 November 1914) was a French mining engineer. After brilliant studies at the École Polytechnique and École des Mines he was placed in charge of the mineralogical sub-district around Grenoble. While holding this position, he made overseas trips to Uruguay, Mozambique, Argentina, Peru, Bolivia, Spain, Tunisia and Australia (twice) to assess the potential of mining concessions, earning a high reputation among financiers. He was appointed an inspector-general of mines, and made important contributions to mining education and mine safety and hygiene regulations. Early years Henry Küss was born in Cernay, Haut-Rhin, on 19 June 1852. He came from an old Alsace family. His father was Jean-Frédéric Küss (1805–62), a pastor, and his grandfather was Georges Charles Küss, an inspector of records at Colmar and Wissembourg. An uncle and a cousin belonged to the Corps des ponts et chaussées, and another cousin bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Louis Le Chatelier
Henry Louis Le Chatelier (; 8 October 1850 – 17 September 1936) was a French chemist of the late 19th and early 20th centuries. He devised Le Chatelier's principle, used by chemists and chemical engineers to predict the effect a changing condition has on a system in chemical equilibrium. Early life Le Chatelier was born on 8 October 1850 in Paris and was the son of French materials engineer Louis Le Chatelier and Louise Durand. His father was an influential figure who played important roles in the birth of the French aluminium industry, the introduction of the Martin-Siemens processes into the iron and steel industries, and the rise of railway transportation. Le Chatelier's father profoundly influenced his son's future. Henry Louis had one sister, Marie, and four brothers, Louis (1853–1928), Alfred (1855–1929), George (1857–1935), and André (1861–1929). His mother raised the children by regimen, described by Henry Louis: "I was accustomed to a very strict discipline: i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
