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Water Engine
The water engine is a positive-displacement engine, often closely resembling a steam engine with similar pistons and valves, that is driven by water pressure. The supply of water is derived from a natural head of water, the water mains, or a specialised high-pressure water supply such as that once provided by the London Hydraulic Power Company. Water mains in the 19th century often operated at pressures of 30 to 40 psi, while hydraulic power companies supplied higher pressure water at anything up to 800 psi. The term water motor () was more commonly applied to small Pelton wheel type turbines driven from a mains water tap (e.g. Whitney Water Motor), and mainly used for light loads, for example sewing machines. In the nineteenth century, the terms ''hydraulic motor'' and ''hydraulic engine'' often implied reference to any motor driven by liquid pressure, including water motors and water engines used in hydropower, but today mentions of hydraulic motors, unless otherwise speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turntable (rail)
A railway turntable or wheelhouse is a device for turning railway rolling stock, usually locomotives, to face a different direction. It is especially used in areas where economic considerations or a lack of sufficient space have served to weigh against the construction of a turnaround wye. Railways needed a way to turn steam locomotives around for return journeys, as their controls were often not configured for extended periods of running in reverse; also many locomotives had a lower top speed in reverse. Most diesel locomotives, however, can be operated in either direction, and are considered to have "front ends" and "rear ends" (often determined by reference to the location of the crew cab). When a diesel locomotive is operated as a single unit, the railway company often prefers, or requires, that it be run "front end" first. When operated as part of a multiple unit locomotive consist, the locomotives can be arranged so that the consist can be operated "front end first" no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Java Applet
Java applets were applet, small applications written in the Java (programming language), Java programming language, or another programming language that Compiled language, compiles to Java bytecode, and delivered to users in the form of Java bytecode. At the time of their introduction, the intended use was for the user to launch the applet from a web page, and for the applet to then execute within a Java virtual machine (JVM) in a Process (computing), process separate from the web browser itself. A Java applet could appear in a frame of the web page, a new application window, a program from Sun Microsystems, Sun called appletviewer, or a stand-alone tool for testing applets. Java applets were introduced in the first version of the Java language, which was released in 1995. Beginning in 2013, major web browsers began to phase out support for NPAPI#Support/deprecation, NPAPI, the underlying technology applets used to run. with applets becoming completely unable to be run by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Self
Douglas Self is a British electronics engineer and author with a particular interest in audio. He received a first class honours degree in engineering from Cambridge University, and then studied psychoacoustics at Sussex University. He is the author of six books on audio electronics, published by Focal Press. He has also contributed many articles to Wireless World magazine, some of which were compiled into a book along with articles by Peter Baxandall. He is a member of the Audio Engineering Society and has taken out a number of audio-related patents, including for a "crossover displacement circuit". He has worked with several major companies, including Cambridge Audio, TAG-McLaren Audio, and Soundcraft Electronics. Circuit Cellar website described him as a 'renowned audio specialist' when discussing a design he created for Elektor magazine. He developed the concept, accompanied with a practical design, of a "blameless" amplifier in which all the main sources of distortio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miele
Miele ( ; ) is a German manufacturer of high-end domestic appliances and commercial equipment, headquartered in Gütersloh, Ostwestfalen-Lippe. The company was founded in 1899 by Carl Miele and Reinhard Zinkann, and has always been a family-owned and family-run company. The Miele family holds 51.1% and the Zinkann family owns 48.9% of the company. History Miele's first products were a cream separator, butter churn, and tub washing machine, under the ''Meteor'' brand. Carl Miele supervised manufacturing personally, and Reinhard Zinkann apprenticed and handled finances and sales. In 1927, Miele started the production of vacuum cleaners. In 1929, the first electric dishwasher in Europe was produced. From 1930, motorcycles were built. In 1932, Miele was the largest centrifuge factory in Europe. During World War II, Miele produced torpedoes, mines, and grenades for the German war effort using slave labor. It is estimated that by 1944, 95% of the company's revenue was derived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaiser Wilhelm Shaft (Clausthal)
Kaiser ( ; ) is the title historically used by German and Austrian emperors. In German, the title in principle applies to rulers anywhere in the world above the rank of king (). In English, the word ''kaiser'' is mainly applied to the emperors of the unified German Empire (1871–1918) and the emperors of the Austrian Empire (1804–1918). During the First World War, anti-German sentiment was at its zenith; the term ''kaiser''—especially as applied to Wilhelm II, German Emperor—thus gained considerable negative connotations in English-speaking countries. Especially in Central Europe, between northern Italy and southern Poland, between western Austria and western Ukraine and in Bavaria, Emperor Franz Joseph I is still associated with (the emperor) today. As a result of his long reign from 1848 to 1916 and the associated Golden Age before the First World War, this title often has still a very high historical respect in this geographical area. Etymology and language usage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brine
Brine (or briny water) is a high-concentration solution of salt (typically sodium chloride or calcium chloride) in water. In diverse contexts, ''brine'' may refer to the salt solutions ranging from about 3.5% (a typical concentration of seawater, on the lower end of that of solutions used for brining foods) up to about 26% (a typical saturated solution, depending on temperature). Brine forms naturally due to evaporation of ground saline water but it is also generated in the mining of sodium chloride. Brine is used for food processing and cooking (pickling and brining), for de-icing of roads and other structures, and in a number of technological processes. It is also a by-product of many industrial processes, such as desalination, so it requires wastewater treatment for proper disposal or further utilization (fresh water recovery). In nature Brines are produced in multiple ways in nature. Modification of seawater via evaporation results in the concentration of salts in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Ram
A hydraulic ram pump, ram pump, or hydram is a cyclic pump, cyclic water pump powered by hydropower. It takes in water at one "hydraulic head" (pressure) and flow rate, and outputs water at a higher hydraulic head and lower flow rate. The device uses the water hammer effect to develop pressure that allows a portion of the input water that powers the pump to be lifted to a point higher than where the water originally started. The hydraulic ram is sometimes used in remote areas, where there is both a source of Low head hydro power, low-head hydropower and a need for pumping water to a destination higher in elevation than the source. In this situation, the ram is often useful, since it requires no outside source of Power (physics), power other than the kinetic energy of flowing water. History In 1772, John Whitehurst of Cheshire, England, invented a manually controlled precursor of the hydraulic ram called the "pulsation engine" and installed the first one at Oulton, Cheshir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Friedrich Von Reichenbach
Georg Friedrich von Reichenbach (24 August 1771 – 21 May 1826) was a German scientific instrument maker. Early life Reichenbach's father was a master mechanic, and a master cannon-borer, who moved to Mannheim when Reichenbach was two, and became manager of the cannon-boring works there. At 14 Georg was admitted to the Military School at Mannheim where he got to know the astronomer at the Mannheim Observatory. He received a knowledge of mathematical instruments and was inspired to try to construct similar instruments in his father's workshop. The Director of the Observatory sent a sextant made by Reichenbach to Count Rumford. When he was 19, Reichenbach received a grant of 500 gulden for a journey to London, and introductions to the engineers James Watt and Matthew Boulton. Reichenbach's first visit to England lasted from 1 June 1791 to January 1792, when he returned home for a short time before returning to England. He made drawings of Watt's steam engine despite Watt's attempt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pipe Organ
The pipe organ is a musical instrument that produces sound by driving pressurised air (called ''wind'') through the organ pipes selected from a Musical keyboard, keyboard. Because each pipe produces a single tone and pitch, the pipes are provided in sets called ''ranks'', each of which has a common timbre, volume, and construction throughout the keyboard Compass (music), compass. Most organs have many ranks of pipes of differing pitch, timbre, and volume that the player can employ singly or in combination through the use of controls called Organ stop, stops. A pipe organ has one or more keyboards (called ''Manual (music), manuals'') played by the hands, and most have a Pedal keyboard, pedal clavier played by the feet; each keyboard controls its own division (group of stops). The keyboard(s), pedalboard, and stops are housed in the organ's Organ console, ''console''. The organ's continuous supply of wind allows it to sustain notes for as long as the corresponding keys are pressed, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coliseum Theatre
The London Coliseum (also known as the Coliseum Theatre) is a theatre in St Martin's Lane, Westminster, built as one of London's largest and most luxurious "family" variety theatres. Opened on 24 December 1904 as the London Coliseum Theatre of Varieties, it was designed by the architect Frank Matcham for the impresario Oswald Stoll. Their ambition was to build the largest and finest music hall, described as the "people's palace of entertainment" of its age. At the time of construction, the Coliseum was one of the few theatres in Europe to provide lifts for taking patrons to the upper levels of the house, and was the first theatre in England to have a triple revolve installed on its stage. The theatre has 2,359 seats making it the largest theatre in London. After being used for variety shows, musical comedies, and stage plays for many years, then as a cinema screening films in the Cinerama format between 1963 and 1968, the Sadler's Wells Opera Company moved into the buildin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
