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De Laval
Karl Gustaf Patrik de Laval (; 9 May 1845 – 2 February 1913) was a Swedish engineer and inventor who made important contributions to the design of steam turbines and centrifugal separation machinery for dairy. Life Gustaf de Laval was born at Orsa in Dalarna in the Swedish de Laval Huguenot family (immigrated 1622 - Claude de Laval, soldier - knighted de Laval 1647). He enrolled at the Institute of Technology in Stockholm (later the Royal Institute of Technology, KTH) in 1863, receiving a degree in mechanical engineering in 1866, after which he matriculated at Uppsala University in 1867. He was then employed by the Swedish mining company, Stora Kopparberg. From there he returned to Uppsala University and completed his doctorate in 1872. He was further employed in Kloster Iron works in Husby parish, Sweden. de Laval was a member of the Royal Swedish Academy of Sciences from 1886. He was a successful engineer and businessman. He also held national office, being elected to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orsa Municipality
Orsa Municipality (''Orsa kommun'') is a municipality in Dalarna County in central Sweden. Its seat is located in the town of Orsa. Orsa is one of a few municipalities in Sweden which has not been amalgamated, but retains its area from the time it was instituted as a municipal entity in 1863. Geography The town of Orsa is located on the north-eastern shore of the large Lake Orsa (''Orsasjön''). Through a southern water passage it is connected with one of Sweden's largest lakes: Siljan. By the shores of Orsasjön the Orsa Camping was inaugurated in 1932. With a kilometer long sandy beach, it has received several awards for its quality and beauty, and is by some referred to as the ''Dalarna Riviera''. Nature sights include the ''Grönklitt'' mountain, that houses a notable bear park and skiing hill. The bear park is an enclosed area where not only bears but also wolves, lynx, siberian tigers and wolverines reside, and is the biggest bear park in northern Europe. Localit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket Engine Nozzle
A rocket engine nozzle is a propelling nozzle (usually of the de Laval type) used in a rocket engine to expand and accelerate combustion products to high supersonic velocities. Simply: propellants pressurized by either pumps or high pressure ullage gas to anywhere between two to several hundred atmospheres are injected into a combustion chamber to burn, and the combustion chamber leads into a nozzle which converts the energy contained in high pressure, high temperature combustion products into kinetic energy by accelerating the gas to high velocity and near-ambient pressure. History Simple bell-shaped nozzles were developed in the 1500s. The de Laval nozzle was originally developed in the 19th century by Gustaf de Laval for use in steam turbines. It was first used in an early rocket engine developed by Robert Goddard, one of the fathers of modern rocketry. It has since been used in almost all rocket engines, including Walter Thiel's implementation, which made possible German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1913 Deaths
Events January * January 5 РFirst Balkan War: Battle of Lemnos РGreek admiral Pavlos Kountouriotis forces the Turkish fleet to retreat to its base within the Dardanelles, from which it will not venture for the rest of the war. * January 13 РEdward Carson founds the (first) Ulster Volunteer Force, by unifying several existing loyalist militias to resist home rule for Ireland. * January 23 Р1913 Ottoman coup d'̩tat: Ismail Enver comes to power. * January РStalin (whose first article using this name is published this month) travels to Vienna to carry out research. Until he leaves on February 16 the city is home simultaneously to him, Hitler, Trotsky and Tito alongside Berg, Freud and Jung and Ludwig and Paul Wittgenstein. February * February 1 РNew York City's Grand Central Terminal, having been rebuilt, reopens as the world's largest railroad station. * February 3 РThe 16th Amendment to the United States Cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1845 Births
Events January–March * January 10 – Elizabeth Barrett receives a love letter from the younger poet Robert Browning; on May 20, they meet for the first time in London. She begins writing her ''Sonnets from the Portuguese''. * January 23 – The United States Congress establishes a uniform date for federal elections, which will henceforth be held on the first Tuesday after the first Monday in November. * January 29 – ''The Raven'' by Edgar Allan Poe is published for the first time, in the '' New York Evening Mirror''. * February 1 – Anson Jones, President of the Republic of Texas, signs the charter officially creating Baylor University (the oldest university in the State of Texas operating under its original name). * February 7 – In the British Museum, a drunken visitor smashes the Portland Vase, which takes months to repair. * February 28 – The United States Congress approves the annexation of Texas. * March 1 – President John Tyler signs a bill authorizing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Internal Combustion Engine
Various scientists and engineers contributed to the development of internal combustion engines. In 1791, the English inventor John Barber patented a gas turbine. In 1794 Thomas Mead patented a gas engine. Also in 1794 Robert Street patented an internal-combustion engine, which was also the first to use liquid fuel (petroleum) and built an engine around that time. In 1798, John Stevens designed the first American internal combustion engine. In 1807, French engineers Nicéphore (who went on to invent photography) and Claude Niépce ran a prototype internal combustion engine, using controlled dust explosions, the Pyréolophore. This engine powered a boat on the Saône river, France. The same year, the Swiss engineer François Isaac de Rivaz built and patented a hydrogen and oxygen powered internal-combustion engine. The fuel was stored in a balloon and the spark was electrically ignited by a hand-operated trigger. Fitted to a crude four-wheeled wagon, François Isaac de Rivaz f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norra Begravningsplatsen
Norra begravningsplatsen, literally "The Northern Cemetery" in Swedish, is a major cemetery of the Stockholm urban area, located in Solna Municipality. Inaugurated on 9 June 1827, it is the burial site for a number of Swedish notables. Notable interments *Salomon August Andrée (1854–1897), polar explorer * Klas Pontus Arnoldson (1844–1916), Nobel laureate in Peace *Kurt Atterberg (1887–1974), composer * Barbro Bäckström (1939–1990), sculptor * Ingrid Bergman (1915–1982), actress * Bo Bergman (1869–1967), author, poet and lyricist * Estelle Bernadotte ''née Manville (1904–1984), American–Swedish countess *Folke Bernadotte (1895–1948), diplomat *Franz Berwald (1796–1868), classical composer * Arne Beurling (1905-1986), mathematician, professor of mathematics * Ulla Billquist (1907–1946), singer *Ulf Björlin (1933–1993), conductor and composer * August Blanche (1811–1868), writer, publicist and politician * Catharina Rosaura "Rosa" Carlén (1836†... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nacka
Nacka () is the municipal seat of Nacka Municipality and part of Stockholm urban area in Sweden. The municipality's name harks back to a 16th-century industrial operation established by the Crown at Nacka farmstead where conditions for water mills are good. However, and somewhat confusingly, that spot is not densely populated today and the municipal seat is on land that once belonged to Järla farmstead on the other side of Lake Järla. Events On 9 December 2014, Stockholm police raided a data center in a former bomb shelter under a hill in Nacka municipality. Although it was rumored the raid targeted popular torrent site The Pirate Bay, officials from The Pirate Bay have revealed that this is false. See also * Sickla Köpkvarter Sickla Köpkvarter is a retail park and shopping district located on a redeveloped industrial estate in Nacka, Sweden. It's wholly owned by Atrium Ljungberg — a real estate company headquartered in the area — and consists of several shoppi ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DeLaval
Delaval is the surname of a family of gentry/aristocracy in Northumberland, England, from the 11th century to the 19th century. Their main estate was the manor of Seaton Delaval. The 18th century Delavals are noteworthy for their colourful lifestyle, for the magnificent Seaton Delaval Hall and for the development of the little seaport of Seaton Sluice and a coal mine at Old Hartley. History The Delaval name derives from Laval, a town in the valley of the river Mayenne, in the ''département'' of Mayenne in old Maine, north-western France. An early ancestor, Guy de la Val I, built a castle there in the first half of the eleventh century. Following the Norman conquest of England the de la Vals settled in Northumberland. At Seaton they built a small fortified dwelling near the existing Saxon church, which in 1100 Hubert de la Val rebuilt, bringing into being the present Church of Our Lady near Delaval Hall. It would appear that the initial fortified dwelling evolved into the medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetra Pak
Tetra Pak is a Swedish–Swiss multinational food packaging and processing company with head offices in Lund, Sweden, and Pully, Switzerland. The company offers packaging, filling machines and processing for dairy, beverages, cheese, ice cream and prepared food, including distribution tools like accumulators, cap applicators, conveyors, crate packers, film wrappers, line controllers and straw applicators.Tetra Pak International Bloomberg Businessweek, retrieved 29 November 2011 Tetra Pak was founded by Ruben Rausing and built on Erik Wallenberg's innovation, a tetrahedron-shaped plastic-coated paper carton, from which the company name was derived. In the 1960s and 1970s, the development of the Tetra Brik package and the aseptic processing, aseptic packaging technolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfa Laval
Alfa Laval AB is a Sweden, Swedish corporation, company, founded in 1883 by Gustaf de Laval and :sv:Oscar Lamm, Oscar Lamm. The company, which started in providing centrifugal separation solutions for dairy (see Separator (milk)), now deals in the production of specialised products and solutions for heavy industry. The products are used to heat, cool, separate and transport such products as oil, water, chemicals, beverages, foodstuffs, starch and pharmaceuticals. Alfa Laval is headquartered in Lund, Sweden and has Subsidiary company, subsidiary companies in over 100 countries around the world, including South Africa, Denmark, Italy, India, Japan, China, Netherlands, and the United States. As of the end of 2021, Alfa Laval had a global workforce of 18,574 employees and revenue of $4,770.22 million. Company structure and end-markets Alfa Laval is a heavy industry company that focuses on the large-scale operations, such as the Marine, Energy, Food & Water industries. Alfa Laval Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milking Machine
Milking is the act of removing milk from the mammary glands of cattle, water buffalo, humans, goats, sheep, and, more rarely, camels, horses and donkeys. Milking may be done by hand or by machine, and requires the animal to be currently or recently pregnant. The milker may refer either to the animal that produces the milk or the person who milks said animal. Hand milking Hand milking is performed by massaging and pulling down on the teats of the udder, squirting the milk into a bucket. Two main methods are used: *The top of the teat is pinched shut between finger and thumb, trapping milk in the lower part, which is then squeezed by the other fingers, squirting the milk out through the hole in the tip of the teat. *The top of the teat is pinched shut by the fingers and thumb, which are then slid down the teat, pushing the milk towards the bottom. Machine milking Most milking in the developed world is done using milking machines. Teat cups are attached to the cow's teats, and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cream Separator
A separator is a centrifugal device that separates milk into cream and skimmed milk. Separation was commonly performed on farms in the past. Most farmers milked a few cows, usually by hand, and separated milk. Some of the skimmed milk was consumed while the rest was used to feed calves and pigs. Enough cream was saved to make butter, and the excess was sold. Today, milk is separated in industrial dairies. Sufficient cream is returned to the skimmed milk before sale. History Before the advent of centrifugal separators, separation was performed by letting milk sit in a container until the cream floated to the top and could be skimmed off by hand. A variant container-separator had a nozzle at the bottom which was opened to allow the milk to drain off. A window in the side, near the nozzle at the bottom, allowed the operator to observe when the milk was drained. The centrifugal separator was first manufactured by Gustaf de Laval, making it possible to separate cream from milk fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
