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Bunsen Medal
Bunsen may refer to: * Christian Charles Josias Bunsen (1791–1860), Prussian diplomat and scholar * Frances Bunsen (1791–1876), or Baroness Bunsen, Welsh painter and author, wife of Christian Charles Josias Bunsen * Robert Bunsen (1811–1899), German chemist, after whom is named: ** Bunsen burner ** Bunsen cell ** Bunsen crater on the moon ** 10361 Bunsen, an asteroid ** Bunsen Reaction ** The Bunsen–Kirchhoff Award, a German award for spectroscopy * Sir Maurice de Bunsen (1852–1932), British diplomat * Dr. Bunsen Honeydew Dr. Bunsen Honeydew is a Muppet character from ''The Muppet Show'', performed by Dave Goelz. He is a bald, yellow-skinned, bespectacled, lab-coated scientist who presented periodic science segments from "Muppet Labs, where the future is being mad ..., fictional character from the Muppet Show {{surname Low German surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Charles Josias Bunsen
Christian Charles or Karl Josias von Bunsen (25 August 1791 – 28 November 1860), also known as , was a German diplomat and scholar. Life Early life Bunsen was born at Korbach, an old town in the German principality of Waldeck. His father was a farmer who was driven by poverty to become a soldier. Having studied at the Korbach gymnasium (a type of superior state grammar school) and Marburg University, Bunsen went in his nineteenth year to Göttingen, where he studied philosophy under Christian Gottlob Heyne, and supported himself by teaching and later by acting as tutor to William Backhouse Astor, John Jacob's son. Bunsen had been recommended to Astor by Heyne. He won the university prize essay of the year 1812 with his treatise ''De Iure Atheniensium Hœreditario'' (“Athenian Law of Inheritance”), and a few months later the University of Jena granted him the honorary degree of doctor of philosophy. During 1813 he traveled extensively with Astor in Germany and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frances Bunsen
Baroness Frances Waddington Bunsen (4 March 1791 – 23 April 1876) was a Welsh painter, author and diplomatic hostess, wife of Christian Charles Josias Bunsen, and the older sister of Lady Llanover. Early life Frances Waddington was born in 1791 at Dunston Park in Berkshire, one of the five daughters of landowner Benjamin Waddington (d.1828) and Georgina Mary Ann, (née Port) (1771–1850), the eldest daughter and co-heiress of her father. Her younger sister Augusta Waddington became Lady Llanover on marriage to Benjamin Hall, 1st Baron Llanover. Frances' mother Georgina was a great niece of Mary Delany, a bluestocking and botanical artist. Frances later lived at "Tŷ Uchaf", Llanover, Monmouthshire where she and her sister were educated by her mother. Frances was a talented watercolour painter. Several of her pictures are owned by Newport City Council. Marriage In 1816, the Waddington family spent the winter in Rome and Benjamin Waddington struck up a friendship with C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Bunsen
Robert Wilhelm Eberhard Bunsen (; 30 March 1811 – 16 August 1899) was a German chemist. He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with the physicist Gustav Kirchhoff. The Bunsen–Kirchhoff Award for spectroscopy is named after Bunsen and Kirchhoff. Bunsen also developed several gas-analytical methods, was a pioneer in photochemistry, and did early work in the field of organic arsenic chemistry. With his laboratory assistant Peter Desaga, he developed the Bunsen burner, an improvement on the laboratory burners then in use. Early life and education Bunsen was born in Göttingen, Germany in 1811, in what is now the state of Lower Saxony in Germany. Bunsen was the youngest of four sons of the University of Göttingen's chief librarian and professor of modern philology, Christian Bunsen (1770–1837). After attending school in Holzminden, Bunsen matriculated at Göttingen in 1828 and studied chemistry with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunsen Burner
A Bunsen burner, named after Robert Bunsen, is a kind of ambient air gas burner used as laboratory equipment; it produces a single open gas flame, and is used for heating, sterilization, and combustion. The gas can be natural gas (which is mainly methane) or a liquefied petroleum gas, such as propane, butane, or a mixture. Combustion temperature achieved depends in part on the adiabatic flame temperature of the chosen fuel mixture. History In 1852, the University of Heidelberg hired Bunsen and promised him a new laboratory building. The city of Heidelberg had begun to install coal-gas street lighting, and so the university laid gas lines to the new laboratory. The designers of the building intended to use the gas not just for illumination, but also in burners for laboratory operations. For any burner lamp, it was desirable to maximize the temperature and minimize luminosity. However, existing laboratory burner lamps left much to be desired not just in terms of the heat o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunsen Cell
The Bunsen cell is a zinc-carbon primary cell (colloquially called a "battery") composed of a zinc anode in dilute sulfuric acid separated by a porous pot from a carbon cathode in nitric or chromic acid. Cell details The Bunsen cell is about 1.9 volts and arises from the following reaction: : Zn + H2SO4 + 2 HNO3 ZnSO4 + 2 H2O + 2 NO2(g) According to the reaction above, when 1 mole (or part) each of zinc and sulfuric acid react with 2 moles (or parts) of nitric acid, the resultant products formed are, 1 mole (or part) of zinc sulfate and 2 moles (or parts) each of water and nitrogen dioxide (gaseous, in the form of bubbles). The cell is named after its inventor, German chemist Robert Wilhelm Bunsen, who improved upon the Grove cell by replacing Grove's expensive platinum cathode with carbon in the form of pulverized coal and coke. Like Grove's battery, Bunsen's emitted noxious fumes of nitrogen dioxide. Bunsen used this cell to extract metals. Henri Moissan used a stack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunsen (crater)
Bunsen is a lunar impact crater that lies near the northwestern limb of the Moon. It is located to the west of the Oceanus Procellarum and the crater von Braun. To the southeast is the crater Lavoisier, and to the northeast lies Gerard. Northwest of Bunsen, on the far side of the Moon, is McLaughlin. Due to its position this crater appears foreshortened when viewed from the Earth, and its visibility is affected by libration. This crater has become considerably worn and eroded by subsequent impacts, leaving a formation that has been described as disintegrated. The most intact portion of the rim is along the northeastern side. There is a smaller, crater-like formation intruding into the southeastern rim. Within the crater, the floor is pitted by tiny impacts, and has a rille Rille (German for 'groove') is typically used to describe any of the long, narrow depressions in the surface of the Moon that resemble channels. The Latin term is ''rima'', plural ''rimae''. Typic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10361 Bunsen
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunsen Reaction
The Bunsen reaction is a chemical reaction that describes water, sulfur dioxide, and iodine reacting to form sulfuric acid and hydrogen iodide: : 2H2O + SO2 + I2 → H2SO4 + 2HI This reaction is the first step in the sulfur-iodine cycle to produce hydrogen. The products separate into two aqueous layers, with the sulfuric acid floating on top, and a mixture of hydrogen iodide and unreacted iodine on the bottom. While the two layers are generally considered immiscible, small amounts of sulfuric acid may still remain in the hydrogen iodide layer and vice versa. This can lead to unwanted side reactions, one of which precipitates out sulfur, a potential obstruction to the reaction vessel. The reaction is named after Robert Bunsen, who discovered it in 1853. A similar reaction is the basis for Karl Fischer titration. Note that at sufficiently high temperatures, concentrated H2SO4 may react with HI, giving I2, SO2 and H2O, which reverses the reaction. Many chemical processes are rever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunsen–Kirchhoff Award
The Bunsen–Kirchhoff Award is a prize for "outstanding achievements" in the field of analytical spectroscopy. It has been awarded since 1990 by the German Working Group for Applied Spectroscopy, and is endowed with by PerkinElmer, Germany. The prize is named in honor of chemist Robert Bunsen and physicist Gustav Kirchhoff Gustav Robert Kirchhoff (; 12 March 1824 – 17 October 1887) was a German physicist who contributed to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects. He coin .... Prizewinners *1990 Günter Snatzke, Germany *1991 Hannes Aiginger, Austria; Peter Wobrauschek, Austria; Joachim Knoth, Germany; Heinrich Schwenke, Germany *1992 Kurt Laqua, Germany; Arnulf Röseler, Germany *1993 Boris L'vov, Russia *1994 D. Bruce Chase, United States; W. J. Orville-Thomas, Great Britain *1995 Paul W.J.M. Boumans, Netherlands *1998 Annemie Bogaerts, Belgium *2000 Dieter Fischer, Germ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maurice De Bunsen
Sir Maurice William Ernest de Bunsen, 1st Baronet, (8 January 1852 – 21 February 1932),de BUNSEN, Rt Hon. Sir Maurice (William Ernest)’, Who Was Who, A & C Black, Oxford University Press, Dec 2007 was a British diplomat. Background and early life De Bunsen was the son of Ernest de Bunsen, second son of Frances Bunsen and Baron von Bunsen, Prussian ambassador to London, by Elizabeth Gurney. He was educated at Rugby School, and Christ Church, Oxford, and entered the diplomatic service in 1877. Diplomatic career De Bunsen was trained in the diplomatic service by Richard Lyons, 1st Viscount Lyons, and was a member of the Tory-sympathetic 'Lyons School' of British diplomacy. De Bunsen was appointed Third Secretary in 1879 and Second secretary in 1883. He served as Secretary of Legation in Tokyo 1891–1894, and as Consul- General in Siam 1894–1897. He was Secretary at Constantinople from 1897 until early September 1902, when he left for Paris to be Secretary of Emba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
