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Johann Michael Ekling
Johann Michael Ekling (also spelt Eckling) (8 August 1795, Vienna – 30 March 1876, Vienna) was an Austrian mechanic and inventor of scientific apparatuses and instruments. Life Johann Michael Ekling was the posthumous son of the army surgeon Joseph Ekling. His mother was Anna Maria Euphrosina Ekling née Spitzbarth. He was born in the suburb of Wieden (then a part of Vienna). At the age of 32 he married Theresia Schwarz, with whom he had five sons and a daughter. In the years to follow, he cooperated closely with mathematics and physics professors Andreas von Baumgartner (German Wikipedia) and Andreas von Ettingshausen of the University of Vienna. He produced artificial magnets on behalf of Baumgartner and one of the first photographic apparatuses in Austria (1839) following instructions by Ettingshausen, who had worked with Daguerre. By 1844 he is referred to as a "university mechanic". An announcement in a paper describes his range of products as follows: " klingmakes all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vienna
Vienna ( ; ; ) is the capital city, capital, List of largest cities in Austria, most populous city, and one of Federal states of Austria, nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. Its larger metropolitan area has a population of nearly 2.9 million, representing nearly one-third of the country's population. Vienna is the Culture of Austria, cultural, Economy of Austria, economic, and Politics of Austria, political center of the country, the List of cities in the European Union by population within city limits, fifth-largest city by population in the European Union, and the most-populous of the List of cities and towns on the river Danube, cities on the river Danube. The city lies on the eastern edge of the Vienna Woods (''Wienerwald''), the northeasternmost foothills of the Alps, that separate Vienna from the more western parts of Austria, at the transition to the Pannonian Basin. It sits on the Danube, and is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliostat
A heliostat () is a device that reflects sunlight toward a target, turning to compensate for the Sun's apparent motion. The reflector is usually a plane mirror. The target may be a physical object, distant from the heliostat, or a direction in space. To do this, the reflective surface of the mirror is kept perpendicular to the bisector of the angle between the directions of the Sun and the target as seen from the mirror. In almost every case, the target is stationary relative to the heliostat, so the light is reflected in a fixed direction. According to contemporary sources the heliostata, as it was called at first, was invented by Willem 's Gravesande (1688–1742). Other contenders are Giovanni Alfonso Borelli (1608–1679) and Daniel Gabriel Fahrenheit (1686–1736). A heliostat designed by George Johnstone Storey is in the Science Museum Group collection. Currently, most heliostats are used for daylighting or for the production of concentrated solar power, us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inventors
An invention is a unique or novelty (patent), novel machine, device, Method_(patent), method, composition, idea, or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an idea is unique enough either as a stand-alone invention or as a significant improvement over the work of others, it can be patented. A patent, if granted, gives the inventor a proprietary interest in the patent over a specific period of time, which can be licensed for financial gain. An inventor creates or discovers an invention. The word ''inventor'' comes from the Latin verb ''invenire'', ''invent-'', to find. Although inventing is closely associated with science and engineering, inventors are not necessarily engineers or scientists. The ideation process may be augmented by the applications of algorithms and methods from the domain collectively known as evolutionary robotics, artificial intellige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From The Austrian Empire
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] |
1876 Deaths
Events January * January 1 ** The Reichsbank opens in Berlin. ** The Bass Brewery Red Triangle becomes the world's first registered trademark symbol. *January 27 – The Northampton Bank robbery occurs in Massachusetts. February * February 2 ** The National League (baseball), National League of Professional Base Ball Clubs is formed at a meeting in Chicago; it replaces the National Association of Professional Base Ball Players. Morgan Bulkeley of the Hartford Dark Blues is selected as the league's first president. ** Third Carlist War (Spain): Battle of Montejurra – The new commander General Fernando Primo de Rivera marches on the remaining Carlist stronghold at Estella-Lizarra, Estella, where he meets a force of about 1,600 men under General Carlos Calderón, at nearby Montejurra. After a courageous and costly defence, Calderón is forced to withdraw. * February 14 – Alexander Graham Bell applies for a U.S. patent for the telephone, as does Elisha Gray. * Februa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1795 Births
Events January–June * January – Central England records its coldest ever month, in the CET records dating back to 1659. * January 14 – The University of North Carolina opens to students at Chapel Hill, becoming the first state university in the United States. * January 16 – War of the First Coalition: Flanders campaign: The French occupy Utrecht, Netherlands. * January 18 – Batavian Revolution in Amsterdam: William V, Prince of Orange, Stadtholder of the Dutch Republic (Republic of the Seven United Netherlands), flees the country. * January 19 – The Batavian Republic is proclaimed in Amsterdam, ending the Dutch Republic (Republic of the Seven United Netherlands). * January 20 – French troops enter Amsterdam. * January 23 – Flanders campaign: Capture of the Dutch fleet at Den Helder: The Dutch fleet, frozen in Zuiderzee, is captured by the French 8th Hussars. * February 7 – The Eleventh Amendment to the United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenyon College
Kenyon College ( ) is a Private university, private Liberal arts colleges in the United States, liberal arts college in Gambier, Ohio, United States. It was founded in 1824 by Episcopal Bishop Philander Chase. It is the oldest private institution of higher education in the state of Ohio and enrolls approximately 1,800 undergraduate students. Students can choose from over 50 majors, minors, and concentrations, including self-designed majors. The college is located on a hill overlooking the Kokosing River and neighbors Mount Vernon, Ohio. Its campus is set in rural surroundings that host seven ecosystems. There are more than 120 student clubs and organizations. Kenyon athletes are called Owls and compete in the NCAA Division III North Coast Athletic Conference. Kenyon College is Educational accreditation, accredited by the Higher Learning Commission. History Founding After becoming the first Episcopal Episcopal Diocese of Ohio, Bishop of Ohio in 1818, Philander Chase found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Von Reichenbach
Karl Ludwig Freiherr von Reichenbach (; February 12, 1788January 19, 1869), known as Carl Reichenbach, was a German chemist, geologist, metallurgist, naturalist, industrialist and philosopher, and a member of the Prussian Academy of Sciences. He is best known for his discoveries of several chemical products of economic importance, extracted from tar, such as eupione, waxy paraffin, pittacal (the first synthetic dye) and phenol (an antiseptic). He also dedicated his last years to researching an unproved field of energy combining electricity, magnetism and heat, emanating from all living things, which he called the Odic force. Life Reichenbach was educated at the University of Tübingen, where he obtained the degree of doctor of philosophy. At the age of 16 he conceived the idea of establishing a new German state in one of the South Sea Islands, and for five years he devoted himself to this project. Afterwards, directing his attention to the application of science to the industri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Pichler
Franz may refer to: People * Franz (given name) * Franz (surname) Places * Franz (crater), a lunar crater * Franz, Ontario, a railway junction and unorganized town in Canada * Franz Lake, in the state of Washington, United States – see Franz Lake National Wildlife Refuge Businesses * Franz Deuticke, a scientific publishing company based in Vienna, Austria * Franz Family Bakeries, a food processing company in Portland, Oregon * Franz-porcelains, a Taiwanese brand of pottery based in San Francisco Other uses * ''Franz'' (1971 film), a Belgian film * Franz (2025 film), an upcoming biographical film of Franz Kafka * Franz Lisp, a dialect of the Lisp programming language See also * Frantz (other) * Franzen (other) * Frantzen (other) Frantzen or Frantzén is a surname. Notable people with the surname include: * Allen Frantzen (born 1947/48), American medievalist * Björn Frantzén (born 1977), Swedish chef and restaurateur * Jean-Pierre Fran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiplicator Nobili 1834
In mathematical group theory, the Schur multiplier or Schur multiplicator is the second homology group H_2(G, \Z) of a group ''G''. It was introduced by in his work on projective representations. Examples and properties The Schur multiplier \operatorname(G) of a finite group ''G'' is a finite abelian group whose exponent divides the order of ''G''. If a Sylow ''p''-subgroup of ''G'' is cyclic for some ''p'', then the order of \operatorname(G) is not divisible by ''p''. In particular, if all Sylow ''p''-subgroups of ''G'' are cyclic, then \operatorname(G) is trivial. For instance, the Schur multiplier of the nonabelian group of order 6 is the trivial group since every Sylow subgroup is cyclic. The Schur multiplier of the elementary abelian group of order 16 is an elementary abelian group of order 64, showing that the multiplier can be strictly larger than the group itself. The Schur multiplier of the quaternion group is trivial, but the Schur multiplier of dihedral 2-groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Bain (inventor)
Alexander Bain (12 October 1810 – 2 January 1877) was a Scottish inventor and engineer who was first to invent and patent the electric clock. He created the first fax machine, known as Bain's facsimile. Bain also installed the railway telegraph lines between Edinburgh and Glasgow. Early life Bain was born in Leanmore, near Watten, Caithness, Scotland. He was baptised in the local kirk on 22 November 1810. His father was a crofter. He had a twin sister, Margaret, and, in total, he had six sisters and six brothers. Bain did not excel in school and was apprenticed to a clockmaker in Wick. Career Having learned the art of clockmaking, he went to Edinburgh, and in 1837 to London, where he obtained work as a journeyman in Clerkenwell. Bain frequented the lectures at the Polytechnic Institution and the Adelaide Gallery and later constructed his own workshop in Hanover Street. Electric clocks and Railway Telegraphs In 1840, desperate for money to develop his inventions, Bain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
