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Anton Schrötter Von Kristelli
Anton Schrötter von Kristelli (26 November 1802 – 15 April 1875) was an Austrian chemist and mineralogist born in Olomouc, Moravia. His son Leopold Schrötter Ritter von Kristelli (1837–1908) was a noted laryngology, laryngologist. Academic background Anton's father was an apothecary. He initially studied medicine in Vienna at the request of his father,Statements based on a translation of an equivalent article at the German Wikipedia but switched to the natural sciences under the influence of Friedrich Mohs (1773–1839). In 1827 he became an assistant to mathematician Andreas von Ettingshausen (1796–1878) and to physicist Andreas von Baumgartner (1793–1865) at the University of Vienna. Three years later he was appointed professor of physics and chemistry at the Graz University of Technology, Joanneum Technical Institute in Graz, and from 1843 served as a professor of technical chemistry at the Vienna University of Technology, Polytechnic Institute in Vienna. In 1845 he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olomouc
Olomouc (, , ; german: Olmütz; pl, Ołomuniec ; la, Olomucium or ''Iuliomontium'') is a city in the Czech Republic. It has about 99,000 inhabitants, and its larger urban zone has a population of about 384,000 inhabitants (2019). Located on the Morava (river), Morava River, the city is the ecclesiastical metropolis and was a historical capital city of Moravia, before having been sacked by the Swedish Empire, Swedish army during the Thirty Years' War. Today, it is the administrative centre of the Olomouc Region and Statutory city (Czech Republic), the sixth largest city in the Czech Republic. The historic city centre is well preserved and is protected by law as Cultural monument (Czech Republic)#Monument reservations, urban monument reservation. The Holy Trinity Column in Olomouc, Holy Trinity Column was listed as a UNESCO World Heritage Site in 2000 for its quintessential Baroque style and symbolic value. Administrative division Olomouc is made up of 26 administrative parts: * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History One of the earliest known mathematicians were Thales of Miletus (c. 624–c.546 BC); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales' Theorem. The number of known mathematicians grew when Pythagoras of Samos (c. 582–c. 507 BC) established the Pythagorean School, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman mathematician recorded by history was Hypati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium
Potassium is the chemical element with the symbol K (from Neo-Latin ''kalium'') and atomic number19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. It was first isolated from potash, the ashes of plants, from which its name derives. In the periodic table, potassium is one of the alkali metals, all of which have a single valence electron in the outer electron shell, that is easily removed to create an ion with a positive charge – a cation, that combines with anions to form salts. Potassium in nature occurs only in ionic salts. Elemental potassium reacts vigorously with water, generating sufficient heat to ignite hydrogen emitted in the reaction, and burning with a lilac- colored flame. It is found dissolved in sea water (which is 0.04% potassium by weight), and occurs in many minerals such as orthoclase, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dopplerite
Dopplerite is a naturally occurring organic substance found in amorphous, elastic or jelly-like masses, of brownish-black color, in peat beds in Styria and in Switzerland. It is tasteless, insoluble in alcohol and ether, and is described by James Dwight Dana as an acid substance, or mixture of different acids, related to humic acid. It is named after the physicist and mathematician Christian Doppler Christian Andreas Doppler ( (); 29 November 1803 – 17 March 1853) was an Austrian mathematician and physicist. He is celebrated for his principle – known as the Doppler effect – that the observed frequency of a wave depends on the relative .... Notes External links *http://www.suprahumic.unina.it/ Pedology Soil chemistry {{soil-sci-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphalt
Asphalt, also known as bitumen (, ), is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used. Full text at Internet Archive (archive.org) The word is derived from the Ancient Greek ἄσφαλτος ''ásphaltos''. The largest natural deposit of asphalt in the world, estimated to contain 10 million tons, is the Pitch Lake located in La Brea in southwest Trinidad (Antilles island located on the northeastern coast of Venezuela), within the Siparia Regional Corporation. The primary use (70%) of asphalt is in Road surface, road construction, where it is used as the glue or binder mixed with construction aggregate, aggregate particles to create asphalt concrete. Its other main uses are for bituminous waterproofing products, including production of roofing felt and for sealing flat roofs. In material sciences an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozokerite
Ozokerite or ozocerite, archaically referred to as earthwax or earth wax, is a naturally occurring odoriferous mineral wax or paraffin found in many localities. Lacking a definite composition and crystalline structure, it is not considered a mineral but only a mineraloid. The name was coined from Greek elements Όζω ''ozο'', to stink, and κηρός ''keros'', wax. Sources Specimens have been obtained from Scotland, Northumberland, Wales, as well as from about thirty different countries. Of these occurrences the ozokerite of the island (now peninsula) of Cheleken, near Türkmenbaşy Bay, parts of the Himalayas in India and the deposits of Utah in the United States, deserve mention, though the latter have been largely worked out. The sole sources of commercial supply are in Galicia, at Boryslav, Dzwiniacz and Starunia, though the mineraloid is found at other points on both flanks of the Carpathians. Ozokerite deposits are believed to have originated in much the same way as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Idrialite
Idrialite is a rare hydrocarbon mineral with approximate chemical formula C22H14. Idrialite usually occurs as soft orthorhombic crystals, is usually greenish yellow to light brown in color with bluish fluorescence. It is named after Idrija, town in Slovenia, where its occurrence was first described. The mineral has also been called idrialine, and ''branderz'' in German It has also been called inflammable cinnabar due to its combustibility and association with cinnabar ores in the source locality. A mineral found in the Skaggs Springs location of California was described in 1925 and named curtisite, but was eventually found to consist of the same compounds as idrialite, in somewhat different amounts. Thus curtisite is now considered to be merely a variety of idrialite. Discovery and occurrence Idrialite was first described in 1832 for an occurrence in the Idrija region west of Ljubljana, northwestern Slovenia, mixed with clay, pyrite, quartz and gypsum associated with cinnabar. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amber
Amber is fossilized tree resin that has been appreciated for its color and natural beauty since Neolithic times. Much valued from antiquity to the present as a gemstone, amber is made into a variety of decorative objects."Amber" (2004). In Maxine N. Lurie and Marc Mappen (eds.) ''Encyclopedia of New Jersey'', Rutgers University Press, . Amber is used in jewelry and has been used as a healing agent in folk medicine. There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions. Amber occurring in coal seams is also called resinite, and the term ''ambrite'' is applied to that found specifically within New Zealand coal seams. Etymology The English word ''amber'' derives from Arabic (ultimately from Middle Persian ''ambar'') via Middle Latin ''ambar'' and Middle French ''ambre''. The word was adopted in Middle English in the 14th century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonia
Ammonia is an inorganic compound of nitrogen and hydrogen with the formula . A stable binary hydride, and the simplest pnictogen hydride, ammonia is a colourless gas with a distinct pungent smell. Biologically, it is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to 45% of the world's food and fertilizers. Around 70% of ammonia is used to make fertilisers in various forms and composition, such as urea and Diammonium phosphate. Ammonia in pure form is also applied directly into the soil. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products. It is mainly collected by downward displacement of both air and water. Although common in nature—both terrestrially and in the outer planets of the Solar System—and in wide use, ammonia is both caust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austrian Mint
The Austrian Mint (german: Münze Österreich) is located in Vienna and is responsible for minting Austrian coins. Since 1989 it has been a public limited company (''Aktiengesellschaft'') and a subsidiary of Austria's central bank Oesterreichische Nationalbank, which also has its headquarters in Vienna. The Austrian Mint carries out both the design and stamping of the coins it produces. Until 2002 it was only responsible for minting the coins of the Austrian schilling; since then it has been responsible for producing the Austrian euro coins. The mint also produces other coins, such as gold bullion coins, as well as commemorative issues: the Vienna Philharmonic coins and the Maria Theresa thaler are produced by the Austrian mint, for example. The mint also supplies circulation coins and blanks to many other countries across the world. History In 1194, Duke Leopold V of Austria was paid 15 tonnes of silver by Richard the Lionheart. On his way back from the crusades Richard had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Traugott Meissner
Paul Traugott Meissner (23 March 1778, Mediasch, Transylvania – 9 July 1864) was an Austrian chemist. In 1797 he moved to Vienna, where he attended lectures given by Joseph Franz von Jacquin (1766-1839). Later, he continued his studies on a tour through Germany. He earned a degree as magister of pharmacy from the University of Pest, subsequently returning to Transylvania, where he took over management of a pharmacy in Kronstadt. Beginning in 1815 he served as an adjunct at the newly founded Polytechnic Institute in Vienna, where shortly afterwards, he became a professor of technical chemistry. In 1842 he was appointed director of the department of general chemistry. Best known for his research in the field of heating technology, he is credited with development of a hot-air central heating system. He conducted experiments with heating systems for steamships and railway carriages and also created a fuel-efficient cooking range. In 1820, Meissner's air heating system was tried ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vienna University Of Technology
TU Wien (TUW; german: Technische Universität Wien; still known in English as the Vienna University of Technology from 1975–2014) is one of the major universities in Vienna, Austria. The university finds high international and domestic recognition in teaching as well as in research, and it is a highly esteemed partner of innovation-oriented enterprises. It currently has about 28,100 students (29% women), eight faculties and about 5,000 staff members (3,800 academics). The university's teaching and research is focused on engineering, computer science, and natural sciences. History The institution was founded in 1815 by Emperor Francis I of Austria as the '' k.k. Polytechnische Institut'' (Imperial-Royal Polytechnic Institute). The first rector was Johann Joseph von Prechtl. It was renamed the ''Technische Hochschule'' (College of Technology) in 1872. When it began granting doctoral and higher degrees in 1975, it was renamed the ''Technische Universität Wien'' (Vienna Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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