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38 Class Steam Locomotive

38 class steam locomotive

The 38 class was the most popular steam locomotive built and operated by the New South Wales Government Railways for mainline express passenger and goods services. It had the popular Pacific 4-6-2 wheel arrangement. In all 30 of these were built, numbered 3801 to 3830. The first five locomotives were built in the Clyde Railway Workshops and wore distinctive streamlined boiler casing. The remaining 25 locomotives were built at the New South Wales Government Railway Workshops at Eveleigh, New South Wales (13 locomotives) and NSWGR Workshops at Cardiff in Newcastle (12 locomotives). Four 38 class locomotives were saved from scrap. Currently only 3801 and 3830 (the first and last locomotives in the class) are operational (3801 by 3801 Limited and 3830 by the Powerhouse Museum), while 3820 is maintained as a static exhibit at the NSW Rail Transport Museum in Thirlmere, NSW. 3813 suffered at the hands of a new railway commissioner after a complete restoration was begun in the mid 1970s. It is now in a stripped condition at the Dorrigo Steam Railway and Museum.

External links


- [http://www.3801limited.com.au 3801 operations]
- [http://www.staterail.nsw.gov.au/Heritage/2b/3801.htm 3801 specifications and history]
- [http://www.phm.gov.au/scripts/webdbs/opac.idc?id=53 3830 specifications and history] Category:Locomotives Category:4-6-2 locomotives

Steam locomotive

A locomotive (from lat. locus motivus) is a railway vehicle that provides the motive power for a train, and has no payload capacity of its own; its sole purpose is to move the train along the tracks. In contrast, many trains feature self-propelled payload-carrying vehicles; these are not normally considered locomotives, and may be referred to as multiple units or railcars; the use of these self-propelled vehicles is increasingly common for passenger trains, but very rare for freight (see however CargoSprinter). Vehicles which provide the motive power to haul an unpowered train, but are not generally considered locomotives because they have payload space or are rarely detached from their trains, are known as power cars. Traditionally, locomotives haul (pull) their trains. Increasingly common these days in local passenger service is push-pull operation, where a locomotive pulls the train in one direction and pushes it in the other, and is therefore optionally controlled from a control cab at the opposite end of the train. This is especially true of "High Speed Rail lines", such as the Japan’s Shinkansen and France’s TGV trains. TGV Grange class steam locomotive, at Bristol Temple Meads station, Bristol, England]]

Origins

The first successful locomotives were built by Cornish inventor Richard Trevithick. In 1804 his unnamed locomotive hauled a train along the tramway of the Penydarren ironworks, near Merthyr Tydfil in Wales. Although the locomotive hauled a train of 10 tons of iron and 70 passengers in five wagons over nine miles it was too heavy for the cast iron rails used at the time. The locomotive only ran three journeys before it was abandoned. In 1813, George Stephenson persuaded the manager of the Killingworth colliery where he worked to allow him to build a steam-powered machine. He built the Blucher, the first successful flanged-wheel adhesion locomotive. The flanges enabled the trains to run on top of the rails instead of in sunken tracks. This greatly simplified construction of switches (called "points" in UK) and rails, and opened the way to the modern railroad.

Benefits of locomotives

switches There are many reasons why the motive power for trains has been traditionally isolated in a locomotive, rather than in self-propelled vehicles. These include:
- Ease of maintenance - it is easier to maintain one locomotive than many self-propelled cars.
- Safety - it is often safer to locate the train's power systems away from passengers. This was particularly the case for steam locomotives, but still has some relevance for other power sources.
- Easy replacement of motive power - should the locomotive break down, it is easy to replace it with a new one. Failure of the motive power unit does not require taking the whole train out of service.
- Efficiency - idle trains do not waste expensive motive power resources. Separate locomotives mean that the costly motive power assets can be moved around as needed.
- Flexibility - large locomotives can be substituted for small locomotives where the gradients of the route become steeper and more power is needed.
- Obsolescence cycles - separating the motive power from the payload-hauling cars means that either can be replaced without affecting the other. At some times, locomotives have become obsolete when their cars are not, or vice versa.

Classification by motive power

Locomotives may generate mechanical work from fuel, or they may take power from an outside source. It is common to classify locomotives by their means of providing motive work - the common ones include:

Steam

power power The first railway locomotives (19th century) were powered by steam, first by burning wood, later coke and coal or petroleum. Because of the steam engine, some people took to calling the steam locomotives themselves "steam engines". The steam locomotive remained by far the most common type of locomotive until after World War II. The age of steam correlates highly to the coal era. The first steam locomotive was built by Richard Trevithick, and first ran on 21 February 1804, although it took some years before steam locomotive design became efficient and economically practical. Fairy Queen, built in 1855; plying between New Delhi and Alwar in India, is the longest-running steam locomotive in regular service in the world, but John Bull, built in 1831, is currently the oldest operable steam locomotive. John Bull is preserved in mostly static display at the Smithsonian Institution in Washington, DC. The all-time speed record for steam trains is held by an LNER Class A4 4-6-2 Pacific locomotive of the LNER in the United Kingdom, number 4468 Mallard, which pulling six carriages (plus a dynamometer car) reached 126 mph (203 km/h) on a slight downhill gradient down Stoke Bank on 3 July 1938. Aerodynamic passenger locomotives from other countries such as Germany and the United States attained speeds very close to this, and this is generally believed to be close to the practicable upper limit for the direct-coupled steam locomotive. Before the middle of the 20th century, electric and diesel-electric locomotives began replacing steam locomotives. Steam locomotives are less efficient than their more modern diesel and electric counterparts and require much greater manpower to operate and service. British Rail figures showed the cost of crewing and fuelling a steam locomotive was some two and a half times that of diesel power, and the daily mileage achievable was far lower. As labour costs rose, particularly after the second world war, non-steam technologies became much more cost-efficient. By the end of the 1960s-1970s, most western countries had completely replaced steam locomotives in commercial service. Freight locomotives generally were replaced later. Other designs, such as locomotives powered by gas turbines, have been experimented with, but have seen little use. By the end of the 20th century, almost the only steam power still in regular use in North America and Western European countries was on heritage railways specifically aimed at tourists and/or railroad enthusiasts, known as railfans or train spotters, although some narrow gauge lines in Germany which form part of the public transport system, running to all-year-round timetables retain steam for all or part of their motive power. Steam locomotives remained in commercial use in parts of Mexico into the late 1970s. Steam locomotives are in regular use in China, where coal is a much more abundant resource than petroleum for diesel fuel. India has switched in the 1990's from steam-powered trains to electric- and diesel-powered trains. In some mountainous and high altitude rail lines, steam engines remain in use because they are less affected by reduced air pressure than diesel engines. petroleum 73096, a 4-6-0 steam loco, at Virginia Water station, April 2004.]]

See also


- List of heritage railways
- Whyte notation
- Geared steam locomotive
- Articulated locomotive
- Duplex locomotive
- Steam turbine locomotive
- High pressure steam locomotive
- Steam engine
- Steam dummy
- Steam locomotive production
- Steam locomotive nomenclature
- Locomotion No. 1
- The Rocket
- Royal Hudson
- Live steam

External links


- [http://www.steamlocomotive.com/ Database of surviving steam locomotives in North America]
- [http://steamrailroading.com/ Information on North American steam railroads in operation]

Diesel-mechanical

Diesel locomotives vary in the form of transmission used to convey the power from a diesel engine (or engines) to the wheels. The simplest form of transmission is by means of a gearbox, in the same way as on road vehicles. Diesel trains or locomotives that use this are called diesel-mechanical and began to appear (although limited in power) even before the first world war which saw a number of simplex diesel systems built for the war, a small number of which survive and are still operational today. It has, however, been found impractical to build a gearbox which can cope with a power output of more than 400 horsepower (300 kW) without breaking, despite a number of attempts to do so. Therefore this type of transmission is only suitable for low-powered shunting locomotives, or lightweight multiple units or railcars. For more powerful locomotives, other types of transmission have to be used.

Diesel-electric

railcar refueling at Dunsmuir, California]] The most common form of transmission is electric; a locomotive using electric transmission is known as a diesel-electric locomotive. With this system, the diesel engine drives a generator or alternator; the electrical power produced then drives the wheels using electric motors. In effect, such a locomotive is an electric locomotive which carries its own generating station along with it. Early diesel-electrics were switching engines used to move rail cars around in rail yards. The first went into service in 1918 with the Jay Street Connecting Railroad. Sixteen years later, the technology began to be applied to regular mainline service as streamlined passenger trains went into operation. Actually, a petroleum distillate-electric system powered the first such train, but diesel-electric systems soon proved to be more cost-effective because of higher efficiency and lower maintenance costs. The fuel for one early high-speed run from Chicago, Illinois to Denver, Colorado only cost US$14.64 (in 1934 dollars). In the 1970s, British Rail in the United Kingdom developed a high-speed diesel-electric train called the High Speed Train or HST. This train consists of two Class 43 locomotives (also known as power cars), one at each end, and a number of "Mark 3" carriages (usually 8). A complete HST set was originally designated as a Class 253 or 254 diesel multiple unit (DMU), but due to the frequent exchanges between sets the power cars were reclassified as locomotives and given class number 43. The unpowered carriages were simultaneously reclassified as individual coaches - the number of a DMU set should identify all its associated carriages as well. The prototype HST (designated Class 252) holds the world speed record for diesel traction, having reached a speed of 143 mph, although the operating speed of the production HST in service is 125 mph (200 km/h), hence the name "Inter-City 125". A variant of the Intercity 125, the XPT, is in service on New South Wales railways in Australia, but with a lower top speed and different carriages.

Diesel-hydraulic

Alternatively, diesel-hydraulic locomotives use hydraulic transmission to convey the power from the diesel engine to the wheels. On this type of locomotive, the power is transmitted to the wheels by means of a device called a torque converter. A torque converter consists of three main parts, two of which rotate, and one which is fixed. All three main parts are sealed in a housing filled with oil. The inner rotating part of a torque converter is called a centrifugal pump (or impeller), the outer part is called a turbine wheel (or driven wheel), and between them is a fixed guide wheel. All of these parts have specially shaped blades to control the flow of oil. The centrifugal pump is connected directly to the diesel engine, and the turbine wheel is connected to an axle, which drives the wheels. As the diesel engine rotates the centrifugal pump, oil is forced outwards at high pressure. The oil is forced through the blades of the fixed guide wheel and then through the blades of the turbine wheel, which causes it to rotate and thus turn the axle and the wheels. The oil is then pumped around the circuit again and again. The disposition of the guide vanes allows the torque converter to act as a "gearbox" with continuously variable ratio. If the output shaft is loaded so as to reduce its rotational speed, the torque applied to the shaft increases, so the power transmitted by the torque converter remains more or less constant. However, the range of variability is not sufficient to match engine speed to load speed over the entire speed range of a locomotive, so some additional method is required to give sufficient range. One method is to follow the torque converter with a mechanical gearbox which switches ratios automatically, similar to an automatic transmission on a car. Another method is to provide several torque converters each with a range of variability covering part of the total required; all the torque converters are mechanically connected all the time, and the appropriate one for the speed range required is selected by filling it with oil and draining the others. The filling and draining is carried out with the transmission under load, and results in very smooth range changes with no break in the transmitted power. Diesel-hydraulic multiple units, a less arduous duty, often use a simplification of this system, with a torque converter for the lower speed ranges and a fluid coupling for the high speed range. A fluid coupling is similar to a torque converter but the ratio of input to output speed is fixed; loading the output shaft results not in torque multiplication and constant power throughput but in reduction of the input speed with consequent lower power throughput. (In car terms, the fluid coupling provides top gear and the torque converter provides all the lower gears.) The result is that the power available at the rail is reduced when operating in the lower speed part of the fluid coupling range, but the less arduous duty of a passenger multiple unit compared to a locomotive makes this an acceptable tradeoff for reduced mechanical complexity. Diesel-hydraulic locomotives are slightly more efficient than diesel-electrics, but were found in many countries to be mechanically more complicated and more likely to break down. In Germany, however, diesel-hydraulic systems achieved extremely high reliability in operation. Persistent argument continues over the relative reliability of hydraulic engines, with continuing questions over whether data was manipulated politically to favour local suppliers over German ones. In the US and Canada, they are now greatly outnumbered by diesel-electric locomotives, while they remain dominant in some European countries. The most famous diesel-hydraulic locomotive is the German V200 which were built from 1953 in a total number of 136. The only diesel-electric locomotives of the Deutsche Bundesbahn were BR 288 (V 188), of which 12 were built in 1939 by the DRG. The high reliability of the German locomotives was paralleled by higher reliability of non-German locomotives built with German-made parts compared to that of the same designs built using parts made locally to German patterns under licence. Much of the unreliability experienced outside Germany was due to poor quality control in the local manufacture of engines and transmissions, and poor maintenance due to staff used to steam locomotives working on unfamiliar and much more complex designs in unsuitable conditions and failing to follow the unit-replacement maintenance methods which were part of the German success. It is notable that diesel-hydraulic multiple units, with the advantages of modern manufacturing techniques and improved maintenance procedures, are now extremely successful in widespread use, achieving excellent reliability.

Gas turbine-electric

DRG] Main article: Gas turbine-electric locomotive Locomotives powered by gas turbines were developed in many countries in the decades after World War II. These used jet-type engines (similar to the turboshaft engines in a turbine helicopter) driving an output shaft. The normal method of transmitting power to the wheels involved an electrical transmission similar to a diesel-electric locomotive - the turbines running at constant speed driving a generator, feeding to large electric motors driving the wheels. Gas turbine locomotives are very powerful, but also very noisy (they sounded similar to a jet aircraft at takeoff). Union Pacific operated the largest fleet of turbine locomotives and used them extensively, at one point claiming that the turbines hauled 10% of the railroad's freight. Their efficiency was quite low, but this was initially not a problem; Union Pacific's gas turbines were fueled with cheap 'Bunker C' (later No.6) heavy fuel oil. This cheap fuel source vanished when improved refinery techniques allowed it to be 'cracked' into lighter petroleum grades. After the oil crisis in the 1970s and the subsequent rise in fuel costs, gas turbine locomotives became uneconomic to operate, and many were taken out of service. This type of locomotive is now rare.

Electric

Main article: Electric locomotive Electric locomotive The electric locomotive is supplied externally with electric power, either through an overhead pickup or through a third-rail. While the cost of electrifying track is rather high, electric trains and locomotives are significantly cheaper to run than diesel ones, and are capable of superior acceleration as well as regenerative braking, making them ideal for passenger service in densely populated areas. Almost all high speed train systems (e.g. ICE, TGV, Shinkansen) use electric power, because the power needed for such performance is not easily carried on board. For example the most powerful electric locomotives that are used today on the channel tunnel freight services use 7 MW of power. The world speed record for a wheeled train was set in 1990 by a French TGV which reached a speed of 515.3 km/h (320 mph). While recently designed electrified railway systems invariably operate on alternating current, many existing direct current systems are still in use—e.g. in South Africa, Spain, and the United Kingdom (750 V and 1500 V); Netherlands (1500 V); Belgium, Italy, Poland (3000 V), and the cities of Mumbai and Chicago, Illinois (which will be switched to AC by 2025). A small number of electric locomotives can also operate off battery power to enable short journeys or shunting to occur on non-electrified lines or yards. Pure battery locomotives also found usage in mines and other underground workings where diesel fumes or smoke are not safe and where external electricity supplies could not be used. Battery locomotives are also used on many underground railways for maintenance operations as they are required to operate in areas where the electricity supply has been temporarily disconnected. See also: Railway electrification system

Electro-diesel

Main article: Electro-diesel locomotive These are special locomotives that can either operate as an electric locomotive or a diesel locomotive. Dual-mode diesel-electric/third-rail locomotives are operated by the Long Island Rail Road and Metro-North Railroad between non-electrified territory and New York City because of a local law banning diesel-powered locomotives in Manhattan tunnels. For the same reason Amtrak operates a fleet of dual-mode locomotives in the New York area. British Rail operated dual diesel-electric/electric locomotives designed to run primarily as electric locomotives. This allowed railway yards to remain un-electrified as the third-rail power system is extremely hazardous in a yard area.

Magnetic levitation

third-rail The newest technology in trains is magnetic levitation (maglev). These electrically powered trains have a special open motor which floats the train above the rail without the need for wheels. This greatly reduces friction. Very few systems are in service and the cost is very high. The experimental Japanese magnetic levitation train has reached 552 km/h (343 mph). The transrapid maglev train connects Shanghai's airport with the city. The first commercial maglev trains ran in the 1980s in Birmingham, United Kingdom, providing a low-speed shuttle service between the airport and its railway station. Despite the huge interest and excitement in the technology it was abandoned and replaced by a cable-hauled guideway a few years later.

Classification by use

The three main categories of locomotives are often subdivided in their usage in rail transport operations. There are passenger locomotives, freight locomotives and switcher (or shunting) locomotives. These categories mainly depend on manoeuvrability, traction power and speed. Some locomotives are designed to work in mountain railways.

See also


- List of locomotive builders
- Famous Locomotives (category)
- Diesel multiple unit
- Heritage railway
- List of heritage railways

References

[http://www.gutenberg.org/etext/11164 An engineer's guide from 1891] [http://www.keveney.com/Locomotive.html Animated engines, Steam Locomotive] 1 Locomotive Category:Rail transport ja:機関車 ko:기관차

New South Wales

New South Wales (NSW) is Australia's most populous and oldest state, located in the south-east, north of Victoria and south of Queensland. It was founded in 1788 and originally comprised much of the Australian mainland. During the 19th century large areas were successively separated to form the British colonies of Tasmania (1825), Victoria (1851), Queensland (1859), and South Australia (which at that time included what is now the Northern Territory). In 1901 these colonies plus Western Australia federated to form the "Commonwealth of Australia". New South Wales is known the world over for the picturesque harbour of its capital, Sydney. Sydney is Australia's oldest and largest city and a centre of international finance. Sydney was the host city of the 2000 Olympic Summer Games.

Timeline


- 1770: Captain James Cook discovers the east coast of New Holland, what later became known as New South Wales, Australia.
- 1788: Captain Arthur Phillip establishes a British penal colony in Port Jackson.
- 1813: William Wentworth, Gregory Blaxland and William Lawson, leads an expedition which finds a route across the Blue Mountains west of Sydney, opening up the grazing lands of inland New South Wales.

Geography

Main article: Geography of New South Wales Its four main cities from north to south are Newcastle, Gosford, Sydney, and Wollongong which all lie along the coast. Towns include Albury, Broken Hill, Dubbo, Tamworth, Armidale, Lismore, Nowra, Griffith, Leeton, Wagga Wagga, Goulburn and Coffs Harbour. The state is bordered on the north by Queensland, on the west by South Australia, and on the south by Victoria. Its coast faces the Tasman Sea. New South Wales contains two Federal enclaves: the Australian Capital Territory (ACT), and the Jervis Bay Territory. New South Wales can be divided physically into four sections:
- A thin coastal strip, with climates warming from cool temperate on the far south coast to subtropical near the Queensland border, including the regions south of Sydney such as the Illawarra , the Shoalhaven near Nowra, Newcastle and the Central Coast and the North Coast, North of The Hunter, as well as others.
- The mountainous areas of the Great Dividing Range and the high country surrounding them. Whilst not particularly steep, many peaks rise above 1000 m, with the highest Mount Kosciuszko at 2229 m (7308 ft). This includes the Southern Highlands, Central Tablelands and the New England regions.
- The agricultural plains that fill a significant portion of the state's area, with a much sparser population than the coast, includes The Riverina area around Wagga Wagga.
- The arid plains in the far north-west of the state, which are unsuitable for settlements of any notable size. Wagga Wagga

Government

Main article: Government of New South Wales Main article: Constitution of New South Wales The form of the Government of New South Wales is prescribed in its Constitution , which dates from 1856, although it has been amended many times since then. Since 1901 New South Wales has been a state of the Commonwealth of Australia, and the Australian Constitution regulates its relationship with the Commonwealth. Under the Australian Constitution, New South Wales ceded certain legislative and judicial powers to the Commonwealth, but retained complete independence in all other areas. The New South Wales Constitution says: "The Legislature shall, subject to the provisions of the Commonwealth of Australia Constitution Act, have power to make laws for the peace, welfare, and good government of New South Wales in all cases whatsoever." In practice, however, the independence of the Australian states has been greatly eroded by the increasing financial domination of the Commonwealth. The State Parliament is composed of two houses, the Legislative Assembly (lower house), and the Legislative Council (upper house). The head of the State Government is the Premier, currently Morris Iemma.

Economy

New South Wales has a Gross Domestic Product of AU$265,966,000,000, which equalled AU$39,950 per capita, in 2003. This was equal to US$30,277, above the major European Union economies.

Another New South Wales

The Australian region was not the first piece of land to be called New South Wales. A map of North America printed in the 1780s gave the name New South Wales to a mostly unexplored area along the south shore of Hudson's Bay where the Canadian provinces of Manitoba and Ontario now lie.

External links


- [http://www.austlii.edu.au/databases.html#nsw NSW State Law]
- [http://www.nsw.gov.au Official state website]
- [http://www.parliament.nsw.gov.au New South Wales Parliament]
- [http://www.police.nsw.gov.au New South Wales Police]
- [http://www.ga.gov.au/education/facts/mapproj/se.htm Map of South East Australia from Geoscience Australia]

See also


- Australian States and Territories
- Local Government Areas of New South Wales
- National Parks in New South Wales
- Stamps and postal history of New South Wales
- List of highways in New South Wales
- List of postcodes in New South Wales
- New South Wales Rural Fire Service
- Australian Bureau of Meteorology ko:뉴사우스웨일스 주 ja:ニューサウスウェールズ州

Cardiff, New South Wales

Cardiff is a suburb of the city of Lake Macquarie. Cardiff is a major employment area thanks to the Cardiff Industrial Estate which is the highest employing area in the Hunter Region. Lake Macquarie City Council is now considering taking a part of Cardiff, Glendale, Argenton, and Boolaroo to make a new suburb. This suburb would be called Lake Macquarie City, and would contain a major transport facility which would have the Lake Macquarie City train station and major bus station. Category:Lake Macquarie

Category:Locomotives

Category:Rolling stock Category:Vehicles

Downtown 81

Originally shot in 1980-81, this film, directed by Edo Bertoglio, is a rare real-life snapshot of ultra-hip subculture of post-punk era Manhattan. Starring renowned artist Jean-Michel Basquiat (who died in 1988 at age 27) and featuring such early Village hipsters as Melle Mel, John Lurie, and Lydia Lunch, the film is a bizarre elliptical urban fairytale. The film opens with Jean (Basquiat) in the hospital with an undisclosed ailment. After checking out, he happens upon an enigmatic woman, Beatrice (Anna Schroeder), who drives around in a convertible. He arrives at his apartment only to discover that his landlord is evicting him. Later, while trying to sell his art work, he meets up with musician Arto Lindsay and his band DNA. Jean eventually does manage to sell some of his art work to a rich middle-aged woman who is interested in more than just his art, but she pays with a check. As the film progresses, he wanders the streets of New York, looking for Beatrice. He happens upon a bag lady (Debbie Harry) who turns into a princess when he kisses her. As a reward, she gives him a stack of cash. Abandoned in the mid-'80s due to financial problems, producer Maripol Fauque rediscovered the film and cleaned it up in 1999. It was screened at the 2000 Cannes Film Festival. [http://www.downtown81.com Downtown 81]

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