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Lazare Weiller
Lazare Weiller (20 July 1858 – 12 August 1928) was a French engineer, industrialist and politician. He was born in Alsace and received a technical education in England and in his cousin's copper factory in Angoulême. He was very interested in the physical sciences, particularly the use of electricity to transmit sound and images. He proposed a system for scanning, transmitting and displaying images that was the basis for experiments by various television pioneers. He sponsored early aviation experiments by the Wright brothers. He founded several companies including a telephone wire manufacturer, a taximeter manufacturer, the first Parisian cab company to use automobiles, an aircraft company and a wireless telegraphy company. He was a deputy during World War I (1914–18) and then a senator until his death. Life Lazare Weiller was born in Sélestat, Bas-Rhin, on 20 July 1858. His parents were Leopold Weiller (born 1807) and Reine Ducasse/Duckes (born 1819). He came from a Jewis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sélestat
Sélestat (; Alsatian: ''Schlettstàdt''; German: ''Schlettstadt'') is a commune in the Grand Est region of France. An administrative division (sous-préfecture) of the Bas-Rhin department, the town lies on the Ill river, from the Rhine and the German border. Sélestat is located between the largest communes of Alsace, Strasbourg and Mulhouse. In 2019, Sélestat had a total population of 19,242, which makes it the eighth most populous town in Alsace. During the Middle Ages and the Renaissance it was the third largest city in the region, after Strasbourg and Colmar, and it is ranked the third commune in Alsace for cultural heritage. Sélestat was founded in the 8th century as a port on the Ill and it experienced a long period of prosperity thanks to the trade in wine and a thriving religious and cultural life. It gradually declined after the Reformation and the French conquest in the 17th century. The town eventually experienced a new demographic growth in the second half of the 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Danforth Armour
Philip Danforth Armour Sr. (16 May 1832 – 6 January 1901) was an American meatpacking industrialist who founded the Chicago-based firm of Armour & Company. Born on an upstate New York farm, he made $8,000 in the California gold rush, 1852–56. He opened a wholesale soap business in Cincinnati, then moved it to Milwaukee. He made millions selling meat to the United States Army during the Civil War. In 1875, he moved his base to Chicago. Armour's innovations including bringing live hogs to the metropolis for slaughter, inventing an assembly line system for the dis-assembly of hogs, canning the product, economy of scale and efficiency in detail. He systematically utilized waste products, boasting that he made use of "everything but the squeal". The introduction of refrigerated rail cars opened a national market for him and competitors such as Gustavus Swift. Armour expanded into banking and speculation on the futures market for pork and wheat by 1900, his plants employed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantin Perskyi
Constantin Dmitrievich Perskyi (Константин Дмитриевич Перский) (2 June 18545 April 1906) was a Russian scientist who is credited with coining the word television (''télévision'') in a paper that he presented in French at the 1st International Congress of Electricity, which ran from 18 to 25 August 1900 during the International World Fair in Paris. At the time, he was Professor of Electricity at the Artillery Academy of Saint Petersburg. His paper referred to the work of other experimenters in the field, including Paul Gottlieb Nipkow and Porfiry Ivanovich Bakhmetiev, who were attempting to use the photoelectric properties of selenium as the basis for their research in the field of image transmission. Biography Konstantin Perskyi was born on 21 May (2 June in Julian calendar), 1854 in Tver Governorate. He belonged to a noble family founded by a person who had moved out of Persia in the service of the grand prince of Dmitry Donskoy. He studied in Micha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcel Brillouin
Louis Marcel Brillouin (; 19 December 1854 – 16 June 1948) was a French physicist and mathematician. Born in Saint-Martin-lès-Melle, Deux-Sèvres, France, his father was a painter who moved to Paris when Marcel was a boy. There he attended the Lycée Condorcet. The Brillouin family returned to Saint-Martin-lès-Melle during the Franco-Prussian War of 1870 to escape the fighting. There he spent time teaching himself from his grandfather's philosophy books. After the war, he returned to Paris and entered the École Normale Supérieure in 1874 and graduated in 1878. He became a physics assistant to Eleuthere Mascart (his future father-in-law) at the Collège de France, while at the same time working for his doctorates in mathematics and physics, which he gained in 1880 and 1882, respectively. Brillouin then held successive posts as assistant professor of physics at universities in Nancy, Dijon and Toulouse before returning to the École Normale Supérieure in Par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules Verne
Jules Gabriel Verne (;''Longman Pronunciation Dictionary''. ; 8 February 1828 – 24 March 1905) was a French novelist, poet, and playwright. His collaboration with the publisher Pierre-Jules Hetzel led to the creation of the ''Voyages extraordinaires'', a series of bestselling adventure novels including ''Journey to the Center of the Earth'' (1864), ''Twenty Thousand Leagues Under the Seas'' (1870), and ''Around the World in Eighty Days'' (1872). His novels, always well documented, are generally set in the second half of the 19th century, taking into account the technological advances of the time. In addition to his novels, he wrote numerous plays, short stories, autobiographical accounts, poetry, songs and scientific, artistic and literary studies. His work has been adapted for film and television since the beginning of cinema, as well as for comic books, theater, opera, music and video games. Verne is considered to be an important author in France and most of Europe, where h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bundesarchiv Bild 102-10748, August Karolus
, type = Archive , seal = , seal_size = , seal_caption = , seal_alt = , logo = Bundesarchiv-Logo.svg , logo_size = , logo_caption = , logo_alt = , image = Bundesarchiv Koblenz.jpg , image_caption = The Federal Archives in Koblenz , image_alt = , formed = , preceding1 = , preceding2 = , dissolved = , superseding1 = , superseding2 = , agency_type = , jurisdiction = , status = Active , headquarters = PotsdamerStraße156075Koblenz , coordinates = , motto = , employees = , budget = million () , chief1_name = Michael Hollmann , chief1_position = President of the Federal Archives , chief2_name = Dr. Andrea Hänger , chief2_position ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photoelectric Cell
A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.Solar Cells chemistryexplained.com It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, , or , vary when exposed to light. Individual solar cell devices are often the el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willoughby Smith
Willoughby Smith (6 April 1828, in Great Yarmouth, Norfolk – 17 July 1891, in Eastbourne, Sussex) was an English electrical engineer who discovered the photoconductivity of the element selenium. This discovery led to the invention of photoelectric cells, including those used in the earliest television systems. Career In 1848, he began working for the Gutta Percha Company, London where he developed iron and copper wires insulated with gutta-percha to be used for telegraph wires. In 1850, Smith superintended the manufacture and laying of 30 miles of underwater telegraph wire from Dover to Calais. Though the first cable failed almost immediately, another laid the following year was a success and over the following decades, Smith and the company he worked for were involved with many other underwater telegraph cable projects. In 1866, Smith developed a method for continually testing an underwater cable as it was being laid. For his test circuit, he needed a semi-conducting mater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selenium
Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. It seldom occurs in its elemental state or as pure ore compounds in the Earth's crust. Selenium – from Greek ( 'Moon') – was discovered in 1817 by , who noted the similarity of the new element to the previously discovered tellurium (named for the Earth). Selenium is found in metal sulfide ores, where it partially replaces the sulfur. Commercially, selenium is produced as a byproduct in the refining of these ores, most often during production. Minerals that are pure selenide or selenate compounds are known but rare. The chief commercial uses for selenium today are glassmaking and pigments. Selenium is a semiconductor and is used in photocells. Applications in electronics, once important, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules Antoine Lissajous
Jules Antoine Lissajous (; 4 March 1822 in Versailles – 24 June 1880 in Plombières-les-Dijon) was a French physicist, after whom Lissajous figures are named. Among other innovations, Lissajous invented the Lissajous apparatus, a device that creates the figures that bear his name. In it, a beam of light is bounced off a mirror attached to a vibrating tuning fork, and then reflected off a second mirror attached to a perpendicularly oriented vibrating tuning fork (usually of a different pitch, creating a specific harmonic interval), onto a wall, resulting in a Lissajous figure. This led to the invention of other apparatus such as the harmonograph. See also *Lissajous curve *Lissajous orbit In orbital mechanics, a Lissajous orbit (), named after Jules Antoine Lissajous, is a quasi-periodic orbital trajectory that an object can follow around a Lagrangian point of a three-body system without requiring any propulsion. Lyapunov orbi ... References External links * 1822 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prince Guillaume Of Luxembourg
Prince Guillaume of Luxembourg (''Guillaume Marie Louis Christian''; born 1 May 1963) is the third son and youngest child of Grand Duke Jean and Grand Duchess Josephine-Charlotte of Luxembourg. Life Prince Guillaume was born in Betzdorf Castle. He attended secondary school in Luxembourg and Switzerland, and received his baccalaureate in Grenoble in 1982. He continued his studies at the University of Oxford in the United Kingdom, and later at Georgetown University in Washington, D.C., where he graduated in 1987. Guillaume was presented the degree Doctor of Humane Letters, honoris causa, at Sacred Heart University's Academic Convocation and Induction of the Class of 2011 on 10 September 2007. The official ceremony welcomed the first-year students to SHU with a formal academic procession and messages from the faculty, student representatives, and president Anthony J. Cernera, PhD. Guillaume worked for six months at the International Monetary Fund in Washington, and spent two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfonso XIII Of Spain
Alfonso XIII (17 May 1886 – 28 February 1941), also known as El Africano or the African, was King of Spain from 17 May 1886 to 14 April 1931, when the Second Spanish Republic was proclaimed. He was a monarch from birth as his father, Alfonso XII, had died the previous year. Alfonso's mother, Maria Christina of Austria, served as regent until he assumed full powers on his sixteenth birthday in 1902. Alfonso XIII's upbringing and public image were closely linked to the military estate, often presenting himself as a soldier-king. His effective reign started four years after the so-called 1898 Disaster, with various social factions projecting their expectations of national regeneration upon him. Similarly to other European monarchs of his time, he played an important political role, entailing a highly controversial use of his constitutional executive powers. His wedding with Victoria Eugenie of Battenberg in 1906 was marked by a regicide attempt, from which he escaped unh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
