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Matthias Eduard Schweizer
Matthias Eduard Schweizer (8 August 1818 – 23 October 1860) was a Swiss chemist who in 1857 invented Schweizer's reagent, in which cellulose can be dissolved to produce artificial silk or rayon. He was one of the pioneers of the synthetic textile industry. Life Matthias Eduard Schweizer was born on 8 August 1818 in Wila, Zurich canton. He was awarded his doctorate in at the University of Zurich, then worked as an assistant at the Zurich Polytechnic. He was a student and assistant of Carl Jacob Löwig, and was mainly involved in analysis of different minerals. He lectured at the university, and was an associate professor at the university from 1852. From 1855 he taught chemistry at the Higher Industrial School (''Oberen Industrieschule'') in Zurich. Schweizer published a paper in 1857 (''Das Kupferoxid-Ammoniak, ein Auflösungsmittel für die Pflanzenfaser'') in which he reported that cotton, linen cellulose and silk could be dissolved in a cuprammonium solution. He found that af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wila, Switzerland
Wila is a Municipalities of Switzerland, municipality in the district of Pfäffikon (district), Pfäffikon in the Cantons of Switzerland, canton of Zurich (canton), Zürich in Switzerland. Geography Wila has an area of . Of this area, 38.4% is used for agricultural purposes, while 51.5% is forested. Of the rest of the land, 9.1% is settled (buildings or roads) and the remainder (1.1%) is non-productive (rivers, glaciers or mountains). housing and buildings made up 6.4% of the total area, while transportation infrastructure made up the rest (2.9%). Of the total unproductive area, water (streams and lakes) made up 0.9% of the area. 8% of the total municipal area was undergoing some type of construction. Wila is situated in the upper Töss Valley. Demographics Wila has a population () of 1,903, of which 9.4% are foreign nationals. the gender distribution of the population was 51% male and 49% female. Over the last 10 years the population has grown at a rate of 7.4%. Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Urban
Johann Urban (or Johannes Urban, 7 June 1863 – 13 November 1940) was an Austrian chemist and industrialist. He was one of the pioneers of the artificial silk industry. Early years Johann Urban was born on 7 June 1863 in Wuchern (now Vuhred) near Marburg (Maribor) in Lower Styria, Austria. His father was a timber merchant. He studied mechanical and electrical engineering in Graz, and expected to work as a teacher at a state vocational school. Instead, he found work in a light bulb factory in Rotterdam, where he met Max Fremery. In the mid-1880s Urban and Fremery took over the technical management of a light bulb factory in Gelnhausen. Lamp manufacture (1885–1900) The Swiss chemist Matthias Eduard Schweizer (1818–60) had found in 1857 that cotton could be dissolved in a solution of copper salts and ammonia and then regenerated. In 1890 the French chemist Louis Henri Despeissis invented the cuprammonium process for spinning fibers from cotton dissolved in Schweizer's reagent. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1860 Deaths
Year 186 ( CLXXXVI) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Aurelius and Glabrio (or, less frequently, year 939 ''Ab urbe condita''). The denomination 186 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Peasants in Gaul stage an anti-tax uprising under Maternus. * Roman governor Pertinax escapes an assassination attempt, by British usurpers. New Zealand * The Hatepe volcanic eruption extends Lake Taupō and makes skies red across the world. However, recent radiocarbon dating by R. Sparks has put the date at 233 AD ± 13 (95% confidence). Births * Ma Liang, Chinese official of the Shu Han state (d. 222) Deaths * April 21 – Apollonius the Apologist, Christian martyr * Bian Zhang, Chinese official and gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1818 Births
Events January–March * January 1 ** Battle of Koregaon: Troops of the British East India Company score a decisive victory over the Maratha Empire. ** Mary Shelley's ''Frankenstein'' is published anonymously in London. * January 2 – The British Institution of Civil Engineers is founded. * January 3 (21:52 UTC) – Venus occults Jupiter. It is the last occultation of one planet by another before November 22, 2065. * January 6 – The Treaty of Mandeswar brings an end to the Third Anglo-Maratha War, ending the dominance of Marathas, and enhancing the power of the British East India Company, which controls territory occupied by 180 million Indians. * January 11 – Percy Bysshe Shelley's ''Ozymandias'' is published pseudonymously in London. * January 12 – The Dandy horse (''Laufmaschine'' bicycle) is invented by Karl Drais in Mannheim. * February 3 – Jeremiah Chubb is granted a British patent for the Chubb detector lock. * February 5 – Upon his death, K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nobeoka, Miyazaki
is a city located in the north of Miyazaki Prefecture, Japan. As of June 1, 2019, the city has an estimated population of 119,521 and a population density of 138 persons per km². The total area is . History The city was officially founded on February 11, 1933, after it gained city status. During World War II, it was one of the most important centers of military explosives in Japan. On the night of June 28-29th, 1945, 117 United States B-29s fire-bombed the city, destroying 1.35 square km, or 36% of the city. On July 16, 1945, 33 US B-24s bombed the bridges in around the city, severing the strategically important Nippō Main Line railway. On February 20, 2006, Nobeoka absorbed the towns of Kitakata and Kitaura (both from Higashiusuki District). On March 31, 2007, the town of Kitagawa (also from Higashiusuki District) was also merged into Nobeoka. Geography Climate Nobeoka has a humid subtropical climate (Köppen climate classification ''Cfa''), which is hot and humid i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dialyzer
The AutoAnalyzer is an automated analyzer using a flow technique called continuous flow analysis (CFA), or more correctly segmented flow analysis (SFA) first made by the Technicon Corporation. The instrument was invented in 1957 by Leonard Skeggs, PhD and commercialized by Jack Whitehead's Technicon Corporation. The first applications were for clinical analysis, but methods for industrial and environmental analysis soon followed. The design is based on segmenting a continuously flowing stream with air bubbles. Operating principle Continuous flow analysis (CFA) is a general term that encompasses both segmented flow analysis (SFA) and flow injection analysis (FIA). In segmented flow analysis, a continuous stream of material is divided by air bubbles into discrete segments in which chemical reactions occur. The continuous stream of liquid samples and reagents are combined and transported in tubing and mixing coils. The tubing passes the samples from one apparatus to the othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denier (unit)
Textile fibers, threads, yarns and fabrics are measured in a multiplicity of units. * A fiber, a single filament of natural material, such as cotton, linen or wool, or artificial material such as nylon, polyester, metal or mineral fiber, or man-made cellulosic fibre like viscose, Modal, Lyocell or other rayon fiber is measured in terms of linear mass density, the weight of a given length of fiber. Various units are used to refer to the measurement of a fiber, such as: the denier and tex (linear mass density of fibers), super S (fineness of wool fiber), worsted count, woolen count, linen count (wet spun) (or Number English (Ne)), cotton count (or Number English (Ne)), Number metric (Nm) and yield (the reciprocal of denier and tex). * A yarn, a spun agglomeration of fibers used for knitting, weaving or sewing, is measured in terms of cotton count and yarn density. * Thread, usually consisting of multiple yarns plied together producing a long, thin strand used in sewing or weavi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edmund Thiele
Edmund Oswald Thiele (1874–1971), later known as Sir Edmund Oswald Teale KBE (he changed the spelling of his surname in 1917) was a prominent geologist from Doncaster, Victoria, Australia. He was created a knight in 1936 during Colonial service in Tanganyika Territory. Career He began a Geological survey in the German colony of Tanganyika in 1908 but was obliged to return to Australia during the First World War. During this time he found employment as a temporary Lecturer in geology at the University of Adelaide, replacing Sir Douglas Mawson who had left for Britain to help the war effort. Between 1917 and 1918 Teale took up a research fellowship at the University of Melbourne. After the war Teale returned to East Africa as part of the geological survey until 1936. Thiele/Teale also did some work in New Zealand with Albert Ernest Kitson and later helped Kitson discover the first diamonds in the Gold Coast. Personal life He was born in Melbourne, Victoria in 1874. He was marr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viscose
Rayon is a semi-synthetic fiber, made from natural sources of regenerated cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. It is also called viscose. Many types and grades of viscose fibers and films exist. Some imitate the feel and texture of natural fibers such as silk, wool, cotton, and linen. The types that resemble silk are often called artificial silk. The fibre is used to make textiles for clothing and other purposes. Rayon production involves solubilizing cellulose to allow turning the fibers into required form. Three common ways to solubilize are the cuprammonium process, not in use today, using ammoniacal solutions of copper salts; the viscose process, the most common today, using alkali and carbon sulfide; and the Lyocell process, using amine oxide. The last avoids the neurotoxic carbon sulfide of the viscose process but is also more expensive. Rayon and its variants Rayon is produced by dissolving cell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vereinigte Glanzstoff-Fabriken
Vereinigte Glanzstoff-Fabriken (VGF, United Rayon Factories) was a German manufacturer of artificial fiber founded in 1899 that became one of the leading European producers of rayon. During the first thirty years VGF cooperated closely with the British manufacturer Courtaulds and other companies to share technology and maintain prices by avoiding competition. It merged with the Dutch firm Enka in 1929 under the holding company Algemene Kunstzijde Unie (AKU), but the two retained their legal identities. AKU made significant investments in rayon production in the United States. The company suffered government interference in Nazi Germany (1933–45) and lost competitive strength during World War II, but partly recovered after the war with American assistance. In 1969 AKU merged with the Dutch manufacturer KZO to form AKZO, now part of AkzoNobel. Successor companies formed during various divestitures, mergers and acquisitions continue to be active in various related industries. Orig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aachen
Aachen ( ; ; Aachen dialect: ''Oche'' ; French and traditional English: Aix-la-Chapelle; or ''Aquisgranum''; nl, Aken ; Polish: Akwizgran) is, with around 249,000 inhabitants, the 13th-largest city in North Rhine-Westphalia, and the 28th-largest city of Germany. It is the westernmost city in Germany, and borders Belgium and the Netherlands to the west, the triborder area. It is located between Maastricht (NL) and Liège (BE) in the west, and Bonn and Cologne in the east. The Wurm River flows through the city, and together with Mönchengladbach, Aachen is the only larger German city in the drainage basin of the Meuse. Aachen is the seat of the City Region Aachen (german: link=yes, Städteregion Aachen). Aachen developed from a Roman settlement and (bath complex), subsequently becoming the preferred medieval Imperial residence of Emperor Charlemagne of the Frankish Empire, and, from 936 to 1531, the place where 31 Holy Roman Emperors were crowned Kings of the Germans. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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