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Lithophane Glauca
A lithophane (French: ''lithophanie'') is an etched or molded artwork in very thin translucent porcelain or plastic that can be seen clearly only when back lit with a light source. It is a design or scene in '' intaglio'' that appears "''en grisaille''" (in gray) tones. Lithophane pictures have three-dimensional characteristics and change their appearance as the light source angle and brilliance is changed. The picture types have a wide range varying from commemorative events to noteworthy people. Many historians argue that the inspiration for the idea of a lithophane originally came from China nearly a thousand years ago in the Tang Dynasty. European lithophanes were first produced at the same time in France, Germany, Prussia, and England in the 1820s. Lithophanes by the hundreds of thousands were made in the middle of the eighteen hundreds by several European porcelain factories. It is a sophisticated form of art with many steps and is done by trained craftspeople. Lithophane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Song Dynasty
The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest of the Ten Kingdoms, ending the Five Dynasties and Ten Kingdoms period. The Song often came into conflict with the contemporaneous Liao, Western Xia and Jin dynasties in northern China. After retreating to southern China, the Song was eventually conquered by the Mongol-led Yuan dynasty. The dynasty is divided into two periods: Northern Song and Southern Song. During the Northern Song (; 960–1127), the capital was in the northern city of Bianjing (now Kaifeng) and the dynasty controlled most of what is now Eastern China. The Southern Song (; 1127–1279) refers to the period after the Song lost control of its northern half to the Jurchen-led Jin dynasty in the Jin–Song Wars. At that time, the Song court retreated south of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Colt
Samuel Colt (; July 19, 1814 – January 10, 1862) was an American inventor, industrialist, and businessman who established Colt's Patent Fire-Arms Manufacturing Company (now Colt's Manufacturing Company) and made the mass production of revolvers commercially viable. Colt's first two business ventures were producing firearms in Paterson, New Jersey, and making underwater mines; both ended in disappointment. His business affairs improved rapidly after 1847, when the Texas Rangers ordered 1,000 revolvers during the American war with Mexico. Later, his firearms were used widely during the settling of the western frontier. Colt died in 1862 as one of the wealthiest men in America. Colt's manufacturing methods were sophisticated. His use of interchangeable parts helped him become one of the first to use the assembly line efficiently. Moreover, his innovative use of art, celebrity endorsements, and corporate gifts to promote his wares made him a pioneer of advertising, prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Barnard
Henry Barnard (January 24, 1811 – July 5, 1900) was an American educationalist and reformer. Biography He was born in Hartford, Connecticut on January 24, 1811 and attended Wilbraham & Monson Academy. He graduated from Yale University in 1830 and was admitted to the Connecticut bar in 1835. In 1837–1839, he was a member of the Connecticut House of Representatives, effecting in 1838 the passage of a bill, drafted and introduced by himself, which provided for "the better supervision of the common schools", and established a board of "commissioners of common schools" in the state. He was the secretary of the board from 1838 until its abolition in 1842, and during this time worked indefatigably to reorganize and reform the common school system of the state, thus earning a national reputation as an educational reformer. In 1843, he was appointed by the governor of Rhode Island agent to examine the public schools of the state, and recommended improvements; and his work resulted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belleek Pottery
Belleek Pottery Ltd is a porcelain company that began trading in 1884 as the ''Belleek Pottery Works Company Ltd'' in Belleek, County Fermanagh, in what was to become Northern Ireland. The factory produces porcelain that is characterised by its thinness, slightly iridescent surface and body formulated with a significant proportion of frit. History Pottery in the Belleek region began around 1849, after John Caldwell Bloomfield inherited his father's estate.Belleek Pottery web site Seeking to provide employment for his tenants, who had been affected by the Great Famine, and being an amateur |
Dresden
Dresden (, ; Upper Saxon: ''Dräsdn''; wen, label=Upper Sorbian, Drježdźany) is the capital city of the German state of Saxony and its second most populous city, after Leipzig. It is the 12th most populous city of Germany, the fourth largest by area (after Berlin, Hamburg and Cologne), and the third most populous city in the area of former East Germany, after Berlin and Leipzig. Dresden's urban area comprises the towns of Freital, Pirna, Radebeul, Meissen, Coswig, Radeberg and Heidenau and has around 790,000 inhabitants. The Dresden metropolitan area has approximately 1.34 million inhabitants. Dresden is the second largest city on the River Elbe after Hamburg. Most of the city's population lives in the Elbe Valley, but a large, albeit very sparsely populated area of the city east of the Elbe lies in the West Lusatian Hill Country and Uplands (the westernmost part of the Sudetes) and thus in Lusatia. Many boroughs west of the Elbe lie in the foreland of the Ore Mounta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meissen Porcelain
Meissen porcelain or Meissen china was the first European hard-paste porcelain. Early experiments were done in 1708 by Ehrenfried Walther von Tschirnhaus. After his death that October, Johann Friedrich Böttger continued von Tschirnhaus's work and brought this type of porcelain to the market, financed by King Augustus II of Poland, Augustus the Strong, King of Poland and Elector of Saxony. The production of porcelain in the royal factory at Meissen, near Dresden, started in 1710 and attracted artists and artisans to establish, arguably, the most famous porcelain manufacturer known throughout the world. Its signature logo, the crossed swords, was introduced in 1720 to protect its production; the mark of the swords is reportedly one of the oldest trademarks in existence. ''Dresden porcelain'' (or "china") was once the usual term for these wares, until in 1975 the (Higher Munich State Court) decided in favour of the Saxon Porcelain Manufactory Dresden, which alone was then allowed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wedgwood
Wedgwood is an English fine china, porcelain and luxury accessories manufacturer that was founded on 1 May 1759 by the potter and entrepreneur Josiah Wedgwood and was first incorporated in 1895 as Josiah Wedgwood and Sons Ltd. It was rapidly successful and was soon one of the largest manufacturers of Staffordshire pottery, "a firm that has done more to spread the knowledge and enhance the reputation of British ceramic art than any other manufacturer", exporting across Europe as far as Russia, and to the Americas. It was especially successful at producing fine earthenware and stoneware that were accepted as equivalent in quality to porcelain (which Wedgwood only made later) but were considerably cheaper. Wedgwood is especially associated with the "dry-bodied" (unglazed) stoneware Jasperware in contrasting colours, and in particular that in "Wedgwood blue" and white, always much the most popular colours, though there are several others. Jasperware has been made continuously ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soapstone
Soapstone (also known as steatite or soaprock) is a talc-schist, which is a type of metamorphic rock. It is composed largely of the magnesium rich mineral talc. It is produced by dynamothermal metamorphism and metasomatism, which occur in the zones where tectonic plates are subducted, changing rocks by heat and pressure, with influx of fluids, but without melting. It has been a medium for carving for thousands of years. Terminology The definitions of the terms "steatite" and "soapstone" vary with the field of study. In geology, steatite is a rock that is to a very large extent composed of talc. The mining industry will define steatite as a high-purity talc rock that is suitable for manufacturing of, for example, insulators, the lesser grades of the mineral can be called simply "talc rock". Steatite can be used both in lumps ("block steatite", "lava steatite", "lava grade talc"), and in the ground form. While the geologists logically will use "steatite" to designate both forms, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feldspar
Feldspars are a group of rock-forming aluminium tectosilicate minerals, also containing other cations such as sodium, calcium, potassium, or barium. The most common members of the feldspar group are the ''plagioclase'' (sodium-calcium) feldspars and the ''alkali'' (potassium-sodium) feldspars. Feldspars make up about 60% of the Earth's crust, and 41% of the Earth's continental crust by weight. Feldspars crystalize from magma as both intrusive and extrusive igneous rocks and are also present in many types of metamorphic rock. Rock formed almost entirely of calcic plagioclase feldspar is known as anorthosite. Feldspars are also found in many types of sedimentary rocks. Compositions The feldspar group of minerals consists of tectosilicates, silicate minerals in which silicon ions are linked by shared oxygen ions to form a three-dimensional network. Compositions of major elements in common feldspars can be expressed in terms of three endmembers: * potassium feldspar (K-spar) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaolin
Kaolinite ( ) is a clay mineral, with the chemical composition Al2 Si2 O5( OH)4. It is an important industrial mineral. It is a layered silicate mineral, with one tetrahedral sheet of silica () linked through oxygen atoms to one octahedral sheet of alumina () octahedra. Rocks that are rich in kaolinite are known as kaolin () or china clay. Kaolin is occasionally referred to by the antiquated term lithomarge, from the Ancient Greek ''litho-'' and Latin ''marga'', meaning 'stone of marl'. Presently the name lithomarge can refer to a compacted, massive form of kaolin. The name ''kaolin'' is derived from Gaoling (), a Chinese village near Jingdezhen in southeastern China's Jiangxi Province. The name entered English in 1727 from the French version of the word: , following François Xavier d'Entrecolles's reports on the making of Jingdezhen porcelain. Kaolinite has a low shrink–swell capacity and a low cation-exchange capacity (1–15 meq/100 g). It is a soft, earthy, usu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gypsum
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywall. Alabaster, a fine-grained white or lightly tinted variety of gypsum, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval England. Gypsum also crystallizes as translucent crystals of selenite. It forms as an evaporite mineral and as a hydration product of anhydrite. The Mohs scale of mineral hardness defines gypsum as hardness value 2 based on scratch hardness comparison. Etymology and history The word ''gypsum'' is derived from the Greek word (), "plaster". Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcined gypsum) used for various purposes, this dehydrated gypsum became known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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