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Philip Deidesheimer
Philip Deidesheimer was a mining engineer in the Western United States. Deidesheimer was born in 1832, in Darmstadt, Hesse before German unification. He attended the prestigious Freiberg University of Mining (''Technische Universität Bergakademie Freiberg'') and emigrated to California in 1852. He died on 21 July 1916 in San Francisco, California. Career In 1852, at nineteen, the young mining engineer traveled to the California gold fields to work for several years, including in Georgetown. In April 1860 he was hired by W. F. Babcock, a trustee of the Ophir Mine, part of the Comstock Lode silver mining boom in Nevada, and solved one of the Comstock mines' most critical engineering needs. Comstock Lode Square set timbering Deidesheimer invented a system, now known as square set timbering, using heavy timber "cubes" as supports for underground mining tunnels and shafts, that enabled skilled miners to open three-dimensional cavities of any size. In large openings, the cubes co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelter
Smelting is a process of applying heat to ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including Silver mining#Ore processing, silver, iron-making, iron, copper extraction, copper, and other base metals. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke (fuel), coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures due to the Chemical energy, lower potential energy of the bonds in carbon dioxide (). Smelting most prominently takes place in a blast furnace to produce pig iron, which is converted into steel. The carbon source acts as a chemical reactant to remove oxygen from the ore, yielding the purified metal Chemical element, element as a product. The carbon source is oxidized in two stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hessian Emigrants To The United States
A Hessian is an inhabitant of the German state of Hesse. Hessian may also refer to: Named from the toponym *Hessian (soldier), eighteenth-century German regiments in service with the British Empire **Hessian (boot), a style of boot **Hessian fabric, coarse woven material **Hessian fly or barley midge, a species of fly (thought to be introduced by Hessian soldiers) *Hessian dialects, West Central German group of dialects *Hessian crucible, a type of ceramic crucible *Hessian Cup, a regional cup competition in German football Named for Otto Hesse *Hessian matrix, in mathematics, is a matrix of second partial derivatives ** Hessian affine region detector, a feature detector used in the fields of computer vision and image analysis **Hessian automatic differentiation ** Hessian equations, partial differential equations (PDEs) based on the Hessian matrix *Hessian pair or Hessian duad in mathematics *Hessian form of an elliptic curve *Hessian group * Hessian polyhedron * Glossary of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Mining Engineers
German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Germanic peoples (Roman times) * German language **any of the Germanic languages * German cuisine, traditional foods of Germany People * German (given name) * German (surname) * Germán, a Spanish name Places * German (parish), Isle of Man * German, Albania, or Gërmej * German, Bulgaria * German, Iran * German, North Macedonia * German, New York, U.S. * Agios Germanos, Greece Other uses * German (mythology), a South Slavic mythological being * Germans (band), a Canadian rock band * "German" (song), a 2019 song by No Money Enterprise * ''The German'', a 2008 short film * "The Germans", an episode of ''Fawlty Towers'' * ''The German'', a nickname for Congolese rebel André Kisase Ngandu See also * Germanic (other) * Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Mining Engineers
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Mining
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaft Mining
Shaft mining or shaft sinking is the action of excavating a mine shaft from the top down, where there is initially no access to the bottom. Shaft (civil engineering), Shallow shafts, typically sunk for civil engineering projects, differ greatly in execution method from deep shafts, typically sunk for mining projects. Shaft sinking is one of the most difficult of all mine development methods: restricted space, gravity, groundwater and specialized procedures make the task quite formidable. Shafts may be sunk by conventional drill and blast or mechanised means. Historically, mine shaft sinking has been among the most dangerous of all the mining occupations and the preserve of mining contractors called sinker (mining), sinkers. Today shaft sinking contractors are concentrated in Canada, Germany, China and South Africa. The modern shaft sinking industry is gradually shifting further towards greater mechanisation. Recent innovations in the form of full-face shaft boring (akin to a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drift Mining
Drift mining is either the mining of an ore deposit by underground methods, or the working of coal seams accessed by adits driven into the surface outcrop of the coal bed. A drift mine is an underground mine in which the entry or access is above water level and generally on the slope of a hill, driven horizontally into the ore seam. Random House dictionary says the origin of the term "drift mine" is an Americanism, circa 1885–1890. Drift is a more general mining term, meaning a near-horizontal passageway in a mine, following the bed (of coal, for instance) or vein of ore. A drift may or may not intersect the ground surface. A drift follows the vein, as distinguished from a crosscut that intersects it, or a level or gallery, which may do either. All horizontal or subhorizontal development openings made in a mine have the generic name of drift. These are simply tunnels made in the rock, with a size and shape depending on their use—for example, haulage, ventilation, or exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Engines Of Our Ingenuity
''The Engines of Our Ingenuity'' is a daily radio series produced jointly by KUHF-FM, Houston, Texas, and the University of Houston. The series tells the story of human invention and creativity in 3 minute essays. The stories center on engineering and technology, but they venture freely into mathematics, science, literature, medicine, music, art and other areas. The program thus reveals much of the cultural history that is formed by technology and other creative enterprises, and it reveals how culture in turn shapes technology and science. The program airs nationally on many public radio stations, and on other outlets. History ''The Engines of Our Ingenuity'' was first aired on January 4, 1988. It reached 3000 finished episodes in March, 2015. The series was founded by John H. Lienhard IV, now retired Professor of Mechanical Engineering at the University of Houston and member of the National Academy of Engineering. The program is now done by a group of experts in several f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Beal (actor)
John Beal (born James Alexander Bliedung, August 13, 1909 – April 26, 1997) was an American actor. Early years Beal was born James Alexander Bliedung in Joplin, Missouri. His father had a department store and Beal went to the Wharton School of the University of Pennsylvania "mapped for a commercial career." While at Wharton, Beal (who enrolled under his real name, James Alexander Bliedung) spent time drawing cartoons for the school's humor magazine and singing in productions of the Mask and Wig club. Stage Soon after graduating from college in 1930, Beal began acting with the Hedgerow Theatre. Beal originally went to New York to study at the Art Students League of New York. A chance to understudy in a play made him change his mind. He went on to appear in ''Russet Mantle'' and ''She Loves Me''. Beal's Broadway credits include ''Three Men on a Horse'' (1993), ''The Seagull'' (1992), ''The Master Builder'' (1992), ''A Little Hotel on the Side'' (1992), ''The Crucible'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonanza (TV Series)
''Bonanza'' is an American Western television series that ran on NBC from September 13, 1959, to January 16, 1973. Lasting 14 seasons and 432 episodes, ''Bonanza'' is NBC's longest-running western, the second-longest-running western series on U.S. network television (behind CBS's ''Gunsmoke''), and within the top 10 longest-running, live-action American series. The show continues to air in syndication. The show is set in the 1860s and centers on the wealthy Cartwright family, who live in the vicinity of Virginia City, Nevada, bordering Lake Tahoe. The series initially starred Lorne Greene, Pernell Roberts, Dan Blocker and Michael Landon and later featured (at various times) Guy Williams, David Canary, Mitch Vogel and Tim Matheson. The show is known for presenting pressing moral dilemmas. The title "Bonanza" is a term used by miners in regard to a large vein or deposit of silver ore, from Spanish ''bonanza'' (prosperity) and commonly refers to the 1859 revelation of the Comstock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra City, California
Sierra City (''Sierra'', Spanish language, Spanish for "mountain range") is a census-designated place in Sierra County, California, Sierra County, California, United States. The elevation of Sierra City is , and the town is situated in the canyon of the North Yuba River on California State Route 49, twelve miles northeast of the county seat of Sierra County, Downieville, California, Downieville. The population was 221 at the 2010 census. History Before the California Gold Rush, only Native Americans had ventured into the area, which lies northwest of Lake Tahoe on the western slope of the Sierra Nevada (U.S.), Sierra Nevada, and which lay between areas inhabited by Maidu, Nisenan, and Washoe people, Washo peoples (Pre-Contact Tribal Map). The area is now part of the Tahoe National Forest. A settlement was established in 1850 by Philo A. Haven and Joseph Zumwalt, who were also involved with the settling of Downieville (Sinnott). In the Winter of 1852-53, however, an avalanche of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
