Home About us Products Services Contact us Bookmark
:: wikimiki.org ::
Atmospheric Railway

Atmospheric railway

An atmospheric railway is a railway in which air pressure or vacuum is used to drive trains. The first commercial application of the system was the line from Kingstown (Dun Laoghaire) to Dalkey in Ireland. This system was also used by Brunel in the 19th century on a 52-mile section of the South Devon Railway between Exeter and Plymouth, England and on the London & Croydon Railway in 1845, but was soon abolished. The supposed advantage of the atmospheric system was its hillclimbing ability, but Brunel chose to test the system on a relatively flat section. Brunel simply assumed that the system would work, because the mainline to Cornwall was designed to contain some very challenging gradients of up to 1 in 38. The atmospheric system did not work, for the following reasons:
- Failure of the tube seals, likely due to rats eating the grease
- Shunting the trains into atmospheric formation was difficult or cumbersome
- The pump stations every few kilometres had to be continuously run and were expensive to operate
- The hillclimbing abilities of the system were not adequatly tested
- It was not clear how atmospheric railway tubes could be compatible with railway points.
- Telegraphy may not have been advanced enough to co-ordinate the pump stations and trains properly.

See also


- Cable railway - a more successful albeit slow way of overcoming steep grades.

External links


- [http://mikes.railhistory.railfan.net/r027.html railway history site]
- [http://www.whoosh.care4free.net/brunel%27s.htm Brunel's Atmospheric Railway]
- [http://www.industrialheritageireland.info/railways/dalkey/index.htm Dalkey Atmospheric Railway] Category:Rail technologies



Vacuum

For other uses, see vacuum cleaner and Vacuum (musical group). The root of the word vacuum is the Latin word vacuum (pl. vacua) which means a space devoid of matter. In physics, a vacuum is the absence of matter in a volume of space.

Vacuum ranges

Vacuum ranges are defined as follows:

Perfect vacuum

A perfect vacuum is an ideal state that cannot practically be obtained in a laboratory, nor even in outer space, where there are a few hydrogen atoms per cubic centimeter at 10−14 pascal or 10−16 torr. In modern day usage vacuum is considered to exist in an enclosed space or chamber, when the pressure of gaseous environment is lower than atmospheric pressure (760 Torr or 101 kPa), or has been reduced as much as necessary to prevent the influence of some gas on a process being carried out in that space.

Partial vacuum

Physicists use the term partial vacuum to describe real-life non-ideal vacuum. A complete characterization of the physical state would require further parameters, such as temperature. The antithesis of a vacuum, which is also an ideal unachievable state, is called a plenum. In engineering, a vacuum is any region where the gas pressure is less than atmospheric pressure. Engineers measure the degree of vacuum in units of pressure. The SI unit of pressure is the pascal (abbreviation Pa), but vacuum is usually measured in millimeters of mercury (mmHg) or torr, with 1 mmHg or 1 torr equaling 133.3223684 pascals. It is often also measured using the barometric scale, or as a percentage of atmospheric pressure in bars or atms. For commercial purposes, vacuum is often measured in inches of mercury (inHg). This means that the pressure in vacuum, when specified in inches of mercury, is equal to the specified inches of mercury subtracted from 29.92. Thus a vacuum of 26 inHg is equivalent to a pressure of (29.92 - 26) or 3.92 inHg. Here, 29.92 inHg means perfect vacuum.

Degrees of vacuum


- Atmospheric pressure = variable, but standardised at 101.325  kPa (760 Torr) or 760 mm of mercury
- Vacuum cleaner = approximately 80 kPa (600 Torr)
- Mechanical vacuum pump = approximately 100 Pa to 100 μPa (1 Torr to 10−6 Torr)
- Near earth outer space = approximately 100 μPa (10−6 Torr)
- Cryopumped MBE chamber = 100 nPa to 1 nPa (10−9 Torr to 10−11 Torr)
- Pressure on the Moon = approximately 1 nPa (10−11 Torr)
- Interstellar space = approximately 1 fPa (10−17 Torr)
- [http://www-ssg.sr.unh.edu/ism/what1.html Source for interstellar vacuum] As gas pressure decreases, the mean free path (MFP) of the gas molecules increases. When the MFP is greater than the chamber, pump, spacecraft, or other objects present, the continuum assumptions of fluid mechanics do not apply. This vacuum state is called high vacuum, and the study of fluid flows in this regime is called particle gas dynamics. In interplanetary and interstellar space, isotropic gas pressure is insignificant when compared to solar pressure, solar wind, and dynamic pressure. Astrophysicists prefer to use density to describe these environments, in units of particles per cubic metre.

Creating a vacuum

The easiest way to create an artificial vacuum is to expand the volume of a container. For example, your muscles expand your lungs to create a partial vacuum inside them, and air rushes in to fill the vacuum. By repeatedly closing off a compartment of the vacuum and exhausting it, it is possible to pump air out of a chamber of fixed size in a manner analogous to pumping a milkshake out of a glass. This is the principle behind most mechanical vacuum pumps. Inside the pump, a mechanism expands a small sealed cavity to create a deep vacuum. Because of the pressure differential, some air from the chamber is pushed into the pump's small cavity. The pump's cavity is then sealed from the chamber, opened to the atmosphere, and squeezed back to a minute size. A mechanical vacuum pump moves the same volume of gas with each cycle, but as the chamber's pressure drops, this volume contains less and less mass. So although the pumping speed remains constant when measured in litres/second, it drops exponentially when measured in kilograms/second. Meanwhile, the leakage rates, evaporation rates, and sublimation rates produce a constant mass flow into the system. When the pump's mass flow drops to the same level as the mass flows into the chamber, the system asymptotically approaches a constant pressure called the base pressure. Evaporation and sublimation into a vacuum is called outgassing, and the most common source is water absorbed by materials in the chamber. Outgassing can be reduced by desiccation prior to vacuum pumping. The base pressure of a rubber- and plastic-sealed piston pump system is typically 1 to 50 kPa, while a scroll pump might reach 10 Pa and a rotary vane oil pump with a clean and empty metallic chamber can easily achieve 0.1 Pa. If the dominant mass flow into the vacuum system is chamber leakage or outgassing of materials under vacuum, then the vacuum can be improved simply by installing bigger pumps. However, there is a point where backstream leakage through the pump and outgassing of the pump oils become the dominant mass flows into the chamber. In this situation, the vacuum will approach the pump's ultimate pressure - the best vacuum that this type of pump can achieve under ideal conditions. Adding more pumps in parallel or bigger pumps of the same type can still improve the pump-down speed, but they will not reduce the base pressure below ultimate. Better pumping technologies must be used to go beyond this barrier.

High vacuum

Fortunately, once the pressure has dropped below 1 kPa or so, another vacuum pumping technique becomes possible. Matter flows differently at different pressures based on the laws of fluid dynamics. At atmospheric pressure and mild vacuums, molecules interact with each other and push on their neighboring molecules in what is known as viscous flow. When the distance between the molecules increases, the molecules interact with the walls of the chamber more often than the other molecules, and molecular pumping becomes more effective than compression pumping. This regime is generally called high vacuum. One such method to create a high vacuum to ultra high vacuum is by the use of cryopumps. Cryopumping incorporates the use of introducing cryogenics and a vacuum system. On a larger scale, the principles are the same as in a Cryomodule Molecular pumps sweep out a larger area than mechanical pumps, and do so more frequently, making them capable of much higher pumping speeds as measured in volume per time. They do this at the expense of the seal between the vacuum and their exhaust. Since there is no seal, a small pressure at the exhaust can easily force flow backstream through the pump; this is called stall. In high vacuum, however, pressure gradients have little effect on fluid flows, and molecular pumps can attain their full potential. The two main types of molecular pumps are the diffusion pump and the turbomolecular pump. Both types of pumps blow out gas molecules that diffuse into the pump. Diffusion pumps blow out molecules with jets of oil, while turbomolecular pumps use high speed fans. Both of these pumps will stall and fail to pump if exhausted directly to atmospheric pressure, so they must be exhausted to a lower grade vacuum created by a mechanical pump. As with mechanical pumps, the base pressure will be reached when leakage, outgassing, and backstreaming equal the pump speed, but now minimizing leakage and outgassing to a level comparable to backstreaming becomes much more difficult. High vacuum systems generally require metal chambers with metal O-ring seals such as Klein flanges or ISO flanges. The system must be clean and free of organic matter to minimize outgassing. All materials, solid or liquid, have a small vapour pressure, and their outgassing becomes important when the vacuum pressure falls below this vapour pressure. As a result, many materials that work well in low vacuums, such as epoxy, will become a problematic source of outgassing when attempting to achieve high vacuums. With these standard precautions, vacuums of 1 mPa are easily achieved with off-the-shelf molecular pumps. With careful design and operation, 1μPa is possible.

Ultra-high vacuum

:Main article: Ultra high vacuum Even higher vacuums are possible, but they generally require custom-built equipment, strict operational procedures, and a fair amount of trial-and-error. Yet more specialized pumps become useful: # Converting the molecules of gas to their solid phase by freezing them, called cryopumping or cryotrapping # Converting them to solids by electrically combining them with other materials, called ion pumping Ultra-high vacuum systems are usually made of stainless steel with metal-gasketed conflat flanges. The system is usually baked, preferably under vacuum, to temporarily raise the vapour pressure of all outgassing materials in the system and boil them off. If necessary, this outgassing of the system can also be performed at room temperature, but this takes much more time. Once the bulk of the outgassing materials are boiled off and evacuated, the system may be cooled to lower vapour pressures and minimize residual outgassing during actual operation. Some systems are cooled well below room temperature by liquid nitrogen to shut down residual outgassing and simultaneously cryopump the system. In ultra-high vacuum systems, some very odd leakage paths and outgassing sources must be considered. The water absorption of aluminium and palladium becomes an unacceptable source of outgassing, and even the absorptivity of hard metals such as stainless steel or titanium must be considered. Some oils and greases will boil off in extreme vacuums. The porosity of the metallic chamber walls may have to be considered, and the grain direction of the metallic flanges should be parallel to the flange face. The impact of molecular size must be considered. Smaller molecules can leak in more easily and are more easily absorbed by certain materials, and molecular pumps are less effective at pumping gases with lower molecular weights. Your system may be able to evacuate nitrogen, (the main component of air,) to the desired vacuum, but your chamber could still be full of residual atmospheric hydrogen and helium. Vessels lined with a highly gas-permeable material such as palladium (which is a high-capacity hydrogen sponge) create special outgassing problems. The lowest pressures currently achievable in laboratory are about 10-13 Pa.

Vacuum in space

Pa Much of outer space has the density and pressure of an almost perfect vacuum. It is cold and has no friction. The properties of the vacuum remain largely unknown. A perfect vacuum is an ideal state that cannot practically be obtained in a laboratory, nor even in outer space, where there are a few hydrogen atoms per cubic centimeter at 10−14 pascal or 10−16 torr. All of the observable universe is also filled with large numbers of photons, the so-called cosmic background radiation, and quite likely a correspondingly large number of neutrinos. The current temperature is about 3 K, being merely 3 degrees above the absolute zero of temperature. Neither these photons nor the neutrinos produce a significant interaction with matter, so stars, planets and spacecraft move freely in this near perfect vacuum of interstellar space. Stars, planets and moons keep their atmosphere by gravitational attraction, so atmospheres have no firm boundary. The density of gas decreases with distance from the object. In Low Earth Orbit (about 300 km altitude) the atmospheric density is still sufficient to produce significant drag on satellites. Most Earth satellites operate in this region, and they need to fire their engines every few days to maintain orbit. The atmosphere in Low Earth Orbit is increasingly being polluted with man-made debris. Studies have discovered that some satellites retrieved from orbit are coated with a very thin layer of urine and fecal matter evidently released from Russian and US space missions. [http://see.msfc.nasa.gov/sparkman/Section_Docs/article_1.htm] Beyond planetary atmospheres, the pressure from photons and other particles from the sun become significant. Spacecraft can be buffeted by solar winds, but planets are too massive to be affected. The idea of using this wind with a solar sail has been proposed for interplanetary travel. The deep vacuum of space could make it an attractive environment for certain processes, for instance those that require ultraclean surfaces. In 1913, Norwegian explorer and physicist Kristian Birkeland may have been the first to predict that space is not only a plasma, but also contains "dark matter". He wrote: "It seems to be a natural consequence of our points of view to assume that the whole of space is filled with electrons and flying electric ions of all kinds. We have assumed that each stellar system in evolutions throws off electric corpuscles into space. It does not seem unreasonable therefore to think that the greater part of the material masses in the universe is found, not in the solar systems or nebulae, but in "empty" space. (See "Polar Magnetic Phenomena and Terrella Experiments", in The Norwegian Aurora Polaris Expedition 1902-1903 (publ. 1913, p.720)

The quantum-mechanical vacuum

Even an ideal vacuum, thought of as the complete absence of anything, will not in practice remain empty. One reason is that the walls of a vacuum chamber emit light in the form of black-body radiation: visible light if they are at a temperature of thousands of degrees, infrared light if they are cooler. If this soup of photons is in thermodynamic equilibrium with the walls, it can be said to have a particular temperature, as well as a pressure. More fundamentally, quantum mechanics predicts that vacuum energy can never be exactly zero. The lowest possible energy state is called the zero-point energy and consists of a seething mass of virtual particles that have brief existence. This is called vacuum fluctuation. While most agree that this represents a significant part of particle physics, it is a concept that would benefit from a deeper understanding than currently available. Vacuum fluctuations may also be related to the so-called cosmological constant in the theory of gravitation, if indeed this entity were to be observed in nature on a macroscopic scale. The best support for vacuum fluctuations is the Casimir effect. In quantum field theory and string theory, the term "vacuum" is used to represent the ground state in the Hilbert space, that is, the state with the lowest possible energy. In free (non-interacting) quantum field theories, this state is analogous to the ground state of a quantum harmonic oscillator. If the theory is obtained by quantization of a classical theory, each stationary point of the energy in the configuration space gives rise to a single vacuum. String theory is believed to be analogous to quantum field theory but one with a huge number of vacua - with the so-called anthropic landscape.

Historical interpretation

Historically, there has been much dispute over whether such a thing as a vacuum can exist. Ancient Greek philosophers did not like to admit the existence of a vacuum, asking themselves "how can 'nothing' be something?". Plato found the idea of a vacuum inconceivable. He believed that all physical things were instantiations of an abstract Platonic ideal, and could not imagine an "ideal" form of a vacuum. Similarly, Aristotle considered the creation of a vacuum impossible—nothing could not be something. Later Greek philosophers thought that a vacuum could exist outside the cosmos, but not inside it. In the Middle Ages, the idea of a vacuum was thought to be immoral or even heretical. The absence of anything implied the absence of God, and hearkened back to the void prior to the story of creation in the book of Genesis. Medieval thought experiments into the idea of a vacuum considered whether a vacuum was present, if only for an instant, between two flat plates when they were rapidly separated. There was much discussion of whether the air moved in quickly enough as the plates were separated, or, following William Burley whether a 'celestial agent' prevented the vacuum arising—that is, whether nature abhorred a vacuum. This speculation became irrelevant after the Paris condemnations of Bishop Tempier, which required there to be no restrictions on the powers of God, which led to the conclusion that God could create a vacuum if he so wished. Following work by Galileo, Evangelista Torricelli argued in 1643 that there was a vacuum at the top of a mercury barometer. Some people believe that although Torricelli produced the first vacuum, it was Blaise Pascal who recognized it for what it was. Robert Boyle later conducted experiments on the effects of a vacuum. For example, a canary exposed to vacuum would rupture open due to the lack of pressure. In 1654, Otto von Guericke conducted his famous Magdeburg hemispheres experiment, showing that teams of horses could not separate two hemispheres from which the air had been evacuated. Concurrently, theories of the nature of light had proposed the idea of a aethereal medium which would be the medium to convey waves of light (Newton relied on this idea to explain refraction and radiated heat). This evolved into the luminiferous aether idea of the 19th century, but it was known to have significant shortcomings. In 1887 the Michelson-Morley experiment, using an interferometer to attempt to detect the change in the speed of light caused by the Earth moving with respect to the aether, was a famous null result, showing that there really was no static, pervasive medium throughout space and through which the Earth moved as though through a wind. (Of course, if the aether were the medium in which light waves traveled and electromagnetic and gravitational fields manifest, then it would be exceedingly difficult to distinguish the characteristics of such medium from those of the field or fields one was in. It would no more be possible to show that the Earth moved in relation to such an aether than it would be to illustrate that it moved in relation to its own electromagnetic and gravitational fields.)

See also


- Cold cathode - (Device to measure a vacuum)
- Cold trap - (Section to collect unwanted molecules in a vacuum)
- Cryopump - (Device to create a vacuum)
- Diffusion pump - (Device used to create a vacuum)
- Evangelista Torricelli - (Unit of pressure named Torr)
- Helium mass spectrometer - (Technical instrumentation to detect a vacuum leak)
- Hot filament ionization gauge - (Device to measure a vacuum)
- Ionization gauge -(Device to measure a vacuum)
- Ion pump - (Device to create a vacuum)
- Magdeburg hemispheres - (Interesting and historical experiment with vacuum)
- Otto von Guericke - (Interesting and historical experiment with vacuum)
- Engine vacuum
- Outgassing - (Properties in the process of a vacuum)
- Rarefaction - (Reduction of a medium's density)
- Suction -(Creation of a partial vacuum)
- Turbopump - (Device to create a vacuum)
- Ultra high vacuum - (Region of the vacuum spectrum)
- Vacuum pump (Device to create a vacuum)
- Vacuum angle

External links


- [http://www.avs.org/ American Vacuum Society]
- [http://scitation.aip.org/jvsta/ Journal of Vacuum Science and Technology A]
- [http://scitation.aip.org/jvstb/ Journal of Vacuum Science and Technology B]
- [http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970603.html Discussion of the effects on humans of exposure to hard vacuums].
- [http://www.arXiv.org/abs/hep-th/0012062 Vacuum Energy in High Energy Physics]
- [http://vacuumscientists.com/ Scientist of vacuum]
- http://www.mcallister.com/vacuum.html (Short History of Vacuum Terminology and Technology) Category:Industrial processes ja:真空

Train

:For other types of train see train (disambiguation) In rail transport, a train consists of a single or several connected rail vehicles that are capable of being moved together along a guideway to transport freight or passengers from one place to another along a planned route. The guideway (permanent way) usually consists of conventional rail tracks, but might also be monorail or maglev. Propulsion for the train is typically provided by a separate locomotive, or from individual motors in self-propelled multiple units. Power is usually derived from diesel engines or from electricity supplied by trackside systems. Historically the steam engine was the dominant form of locomotive power, and other sources of power (such as horses, pneumatics, or gas turbines) are possible as well. In American railway terminology, a consist is used to describe the group of rail vehicles which make up a train.

Types of trains

railway terminology, Perth ]] There are various types of trains designed for particular purposes, see rail transport operations. A train can consist of a combination of a locomotive and attached railroad cars, or a self-propelled multiple unit (or occasionally a single powered coach, called a railcar). Trains can also be hauled by horses, pulled by a cable, or run downhill by gravity. Special kinds of trains running on corresponding special 'railways' are atmospheric railways, monorails, high-speed railways, Dinky Trains, maglev, rubber-tired underground, funicular and cog railways. cog railway A passenger train may consist of one or several locomotives, and one or more coaches. Alternatively, a train may consist entirely of passenger carrying coaches, some or all of which are powered as a "multiple unit". In many parts of the world, particularly Japan and Europe, high-speed rail is utilized extensively for passenger travel. Freight trains comprise wagons or trucks rather than carriages, though some parcel and mail trains (especially Travelling Post Offices) are outwardly more like passenger trains. In the United Kingdom, a train hauled by two locomotives is said to be "double-headed", and in Canada and the United States it is quite common for a long freight train to be headed by three, four, or even five locomotives. Trains can also be mixed, hauling both passengers and freight, see e.g. Transportation in Mauritania. Such mixed trains became rare in many countries, but were commonplace on the first 19th-century railroads. Special trains are also used for track maintenance; in some places, this is called maintenance of way. A single uncoupled rail vehicle is not technically a train, but is usually referred to as such for signaling reasons.

Motive power

maintenance of way] The first trains were rope-hauled or pulled by horses, but from the early 19th century almost all were powered by steam locomotives. From the 1920s onwards they began to be replaced by less labor intensive and cleaner (but more expensive) diesel locomotives and electric locomotives, while at about the same time self-propelled multiple unit vehicles of either power system became much more common in passenger service. Most countries had replaced steam locomotives for day-to-day use by the 1970s. A few countries, most notably the People's Republic of China where coal is in cheap and plentiful supply, still use steam locomotives, but this is being gradually phased out. Historic steam trains still run in many other countries, for the leisure and enthusiast market. coal Electric traction offers a lower cost per mile of train operation but at a very high initial cost, which can only be justified on high traffic lines. Since the cost per mile of construction is much higher, electric traction is less favored on long-distance lines. Electric trains receive their current via overhead lines or through a third rail electric system.

Passenger trains

Passenger trains have Passenger cars. Passenger trains travel between stations; the distance between stations may vary from under 1 km to much more. Long-distance trains, sometimes crossing several countries, may have a dining or restaurant car; they may also have sleeping cars, but not in the case of high-speed rail, these arrive at their destination before the night falls and are in competition with airplanes in speed. Very long distance trains such as those on the Trans-Siberian railway are usually not high-speed. Very fast trains sometimes tilt, like the Pendolino or Talgo. Tilting is a system where the passenger cars automatically lean into curves, reducing the centrifugal forces acting on passengers and permitting higher speeds on curves in the track with greater passenger comfort. For trains connecting cities, we can distinguish inter-city trains, which do not halt at small stations, and trains that serve all stations, usually known as local trains or "stoppers" (and sometimes an intermediate kind, see also limited-stop). limited-stop For shorter distances many cities have networks of commuter trains, serving the city and its suburbs. Some carriages may be laid out to have more standing room than seats, or to facilitate the carrying of prams, cycles or wheelchairs. Some countries have some double-decked passenger trains for use in conurbations. Double deck high speed and sleeper trains are becoming more common in Europe. Passenger trains usually have emergency brake handles (or a "communication cord") that the public can operate. Abuse is punished by a fine. fine Large cities often have a metro system, also called underground, subway or tube. The trains are electrically powered, usually by third rail, and their railroads are separate from other traffic, without level crossings. Usually they run in tunnels in the city center and sometimes on elevated structures in the outer parts of the city. They can accelerate and decelerate faster than heavier, long-distance trains. A light one- or two-car rail vehicle running through the streets is not called a train but a tram, trolley, light rail vehicle or streetcar, but the distinction is not strict. The term light rail is sometimes used for a modern tram, but it may also mean an intermediate form between a tram and a train, similar to metro except that it may have level crossings. These are often protected with crossing gates. They may also be called a trolley. Maglev trains and monorails represent minor technologies in the train field. The term rapid transit is used for public transport such as commuter trains, metro and light rail. However, in New York City, lines on the New York City Subway have been referred to as "trains".

See also


- people mover
- Passenger train human waste disposal.

Freight trains

Passenger train human waste disposal Freight trains have freight cars. Much of the world's freight is transported by train. In the USA the rail system is used mostly for transporting freight (or cargo). Under the right circumstances, transporting freight by train is highly economic, and also more energy efficient than transporting freight by road. Rail freight is most economic when freight is being carried in bulk and over long distances, but is less suited to short distances and small loads. The main disadvantage of rail freight is its lack of flexibility. For this reason, rail has lost much of the freight business to road competition. Many governments are now trying to encourage more freight onto trains, because of the environmental benefits that it would bring. road competition]] There are many different types of freight train, which are used to carry many different kinds of freight, with many different types of wagon. One of the most common types on modern railways are container trains, whereby the containers can be lifted on and off the train by cranes and loaded off or onto trucks or ships. ship in 1992.]] This type of freight train has largely superseded the traditional "box wagon" type of freight train, whereby the cargo had to be loaded or unloaded manually. In some countries "piggy back" trains are used whereby trucks can drive straight onto the train and drive off again when the end destination is reached. A system like this is used on the Channel Tunnel between England and France. Piggy back trains are the fastest growing type of freight trains in the United States, where they are also known as 'trailer on flat car' or TOFC trains. There are also some "inter-modal" vehicles, which have two sets of wheels, for use in a train, or as the trailer of a road vehicle. There are also many other types of wagon, such as "low loader" wagons for transporting road vehicles. There are refrigerator wagons for transporting food. There are simple types of open-topped wagons for transporting minerals and bulk material such as coal and tankers for tranporting liquids and gases. Freight trains are sometimes illegally boarded by passengers who do not wish, or do not have the money, to travel by ordinary means. This is referred to as "Hopping" and is considered by some communities to be a viable form of transport. Most hoppers sneak into train yards and stow away in boxcars. More bold hoppers will catch a train "on the fly", that is, as it is moving, leading to occasional fatalities, some of which go unrecorded.

Famous train routes

Main article: Famous trains Famous historical train services include the:
- Orient Express in Europe.
- Trans-Siberian in Russia.
- Blue Train in South Africa.
- Train-de-Luxe from Johannesburg to Victoria Falls.
- Chihuahua al Pacifico in Mexico.
- Palace on Wheels in Rajasthan, India.
- Frontier Mail and Grand Trunk Express, India.
- The Canadian in Canada.
- 20th Century Limited in the USA.
- City of New Orleans in the USA.
- California Zephyr in the USA.
- The Indian-Pacific and The Ghan in Australia (long-distance rail).
- Puffing Billy and The Gulflander in Australia (heritage and touring).
- Rheingold Express in The Netherlands, Germany and Switzerland, following the course of the Rhine.

Fictional trains

See also: Rail transport in fiction
- Hogwarts Express — Takes Harry Potter to Hogwarts Academy.
- Taggart Comet (Atlas Shrugged)
- The Great Train Robbery — feature film based on a true story, also title of a modern film.
- Starlight Express (Andrew Lloyd Webber) — Musical about an old steam engine being replaced by an electrical engine.
- Galaxy Express 999 — From the manga and anime of the same name by Leiji Matsumoto, this train travels the galaxy from planet to planet.
- The Polar Express — From the book of the same name, this train takes children to the North Pole.
- Runaway Train — Film about escaped inmates on a runaway train.
- Atomic Train — TV movie (1999) A runaway train carrying an atomic bomb into a town.
- Thomas the Tank Engine and Friends TV Series originated from The Railway Series by the Rev.W.Awdry For a list of railway movies, see [http://www.spikesys.com/Trains/rly_movs.html] (website last updated December 5, 1995).

See also


- Amtrak
- Armoured train
- Coupling
- List of railway companies
- Toy train
- Train whistle
- Train wreck

Further reading


- Jonathan Glancey - The Train (2004)

External links


- [http://www.raileurope.co.uk Book European rail travel online]
- [http://www.railfaneurope.net High Speed Train]
- Official [http://ojp.nationalrail.co.uk/planmyjourney/time_table/journey_requirements.asp train times] in the UK (from [http://www.nationalrail.co.uk/ National Rail]).
- [http://www.railserve.com/ RailServe.com: The Internet Railroad Directory] - directory of 10,000 train sites
- [http://www.trainfoamers.com Trainfoamers.com] - It's Free To Talk Trains Again!
- [http://www.trainorders.com Trainorders.com] - Focus on trains of North America Category:Vehicles Category:Rail transport ms:Keretapi ja:列車



Dalkey

Dalkey (Deilginis in Irish) is a town in southern County Dublin. It was originally founded as a Viking settlement and became an important port during the middle ages. According to John Clyn, it was one of the points through which the plague entered Ireland in the mid-14th century. In modern times, Dalkey has become a prosperous seaside suburb and a minor tourist attraction. The town is named after Dalkey Island, just offshore. The name is an adaptation from the Irish, Deilginis ("Thorn Island"). Vikings added their own word for island - øy - to the first syllable of the native name. (The same "-ey" suffix is present in other Irish place names too.) Dalkey is the original home town of two well-known Irish writers: Novelist, Maeve Binchy (Light a Penny Candle, Echoes, Circle of Friends), and playright, Hugh Leonard (Da, A Life, Kill). It is also the setting for many of Flann O'Brien's writings, notably The Dalkey Archive. Once a sleepy suburb, Dalkey developed a reputation as Dublin's Beverley Hills when several well-known Irish and international figures bought property there during the 1990s. Dalkey Quarry is a disused granite quarry, stone from which was used in the 19th century to build Dún Laoghaire harbour, and is now a popular rock-climbing location within Killiney Hill Park. This was connected by a tramway to the harbour. Dalkey was the terminus for the first commercial application of the Atmospheric system of propulsion of trains. Dalkey is served by the DART, the line of which passes through a tunnel south of Dalkey, emerging on a cliff giving spectacular views over Killiney Bay.

See also


- List of towns in the Republic of Ireland
- List of climbing areas in Ireland

External links


- [http://www.climbing.ie/counties/dublin.html#dalkey Irish Climbing On-line]
- [http://homepage.eircom.net/~fluppet/DalkeyWalks/ Dalkey Walks]
- [http://www.irishtourist.com/details/dalkey.shtml Visitor Information]
- [http://www.dalkeyhomepage.ie/ Dalkey Homepage]
- [http://www.62infantry.com/ 62nd Infantry Battalion] - (Unofficial Website of the local Army Reserve unit)
- [http://www.industrialheritageireland.info/railways/dalkey/index.htm Dalkey Quarry Tramway/Atmospheric Railway] Category:Towns and suburbs in Dublin Category:Climbing areas

Ireland

:This page is about the island of Ireland. For the state also called Ireland, see Republic of Ireland. :For an explanation of terms like Ulster, Northern Ireland, (Great) Britain and United Kingdom see British Isles (terminology) . British Isles (terminology)] Ireland (Irish: Éire) is the third-largest island in Europe. It lies in the Atlantic Ocean and it is composed of the Republic of Ireland (officially, Ireland), which covers five sixths of the island (south, east, west and north-west), and Northern Ireland; part of the United Kingdom, which covers the northeastern sixth of the island. The population of the island is approximately 5.8 million people; 4.1 million in the Republic of Ireland (1.6 million in Greater Dublin) and 1.7 million in Northern Ireland (0.6 million in Greater Belfast). Belfast 2003. Scotland, the Isle of Man and Wales are visible to the east]]

Geography

Wales with more details).]] A ring of coastal mountains surrounds low central plains. The highest peak is Carrauntuohill (Irish: Corrán Tuathail), which is 1041 m (3414 feet). The island is bisected by the River Shannon, at 259 km (161 mi) the longest river in Ireland or Britain. The island's lush vegetation, a product of its mild climate and frequent but soft rainfall, earns it the sobriquet "Emerald Isle". The island's area is 84,079 km² (32,477 mile²). Ireland is divided into four provinces: Connacht, Leinster, Munster and Ulster. In Irish these are referred to as Cúige's ( Cúige - meaning fifths). Previously there were five provinces - Connacht, Munster, Ulster, Leinster and Meath, comprising the counties of Meath, Westmeath and Longford. These were further divided into 32 counties for administrative purposes. Six of the Ulster counties remain under British sovereignty as Northern Ireland following Ireland's partition in 1922 (the remaining 26 forming present-day Republic of Ireland); since the UK's 1974 reshuffle these county boundaries no longer exist in Northern Ireland for administrative purposes, although Fermanagh District Council is almost identical to the county. In the Republic, the county boundaries are still adhered to for local government, albeit with Tipperary and Dublin subdivided (some cities also have their own administrative regions). For election constituencies, some counties are merged or divided, but constitutionally the boundaries have to be observed. Across Ireland, the 32 counties are still used in sports and in some other cultural areas and retain a strong sense of local identity. Ireland's least arable land lies in the south-western and western counties. These areas are largely spectacularly mountainous and rocky, with beautiful green vistas.

Politics

Dublin Politically, Ireland is divided into:
- The Republic of Ireland, with its capital in Dublin. This state is often simply referred to internally and internationally as "Ireland" in English or "Éire" in Irish. Technically Ireland and Éire are the official names of the state while the "Republic of Ireland" is its official description.
- Northern Ireland is unofficially known as 'the North', and 'Ulster' (the province of Ulster also includes Donegal, Cavan, and Monaghan which are in the Republic). Northern Ireland is a region of the United Kingdom. Prior to the Government of Ireland Act 1920 the island had been a unified political entity within the United Kingdom (see United Kingdom of Great Britain and Ireland) from 1801. From 1541 the Kingdom of Ireland was established by the King of England, though this realm did not cover the whole island till the early 17th century. Up to then, Ireland had been politically divided into a number of different Irish kingdoms (Leinster, Munster, Connacht, Mide, Ulster, and others). Contrary to some assertions, at no time did a national kingdom headed by an Ard Ri exist. In a number of respects, the island operates officially as a single entity, for example, in most kinds of sports. The major religions, the Roman Catholic Church, the Church of Ireland and the Presbyterian Church in Ireland, are organised on an all-island basis. Some 92% of the population of the Republic of Ireland and about 44% of Northern Ireland is Roman Catholic. Some trade unions are also organised on an all-Irish basis and associated with the Irish Congress of Trades Unions (ICTU) in Dublin, while others in Northern Ireland are affiliated with the Trades Union Congress (TUC) in the United Kingdom - though such unions may organise in both parts of the island as well as in Britain. The island also has a shared culture across the divide in many other ways. Traditional Irish music, for example, though showing some variance in all geographical areas, is, broadly speaking, the same on both sides of the border. Irish and Scottish traditional music have many similarities. The Ireland Funds, an international fund-raising organisation, tries to help people on both sides find peace and reconciliation through community development, education, arts and culture. The island is often referred to as being part of the British Isles. However, some people, especially in Ireland, take exception to this name, which seems to suggest that both islands belong to Britain. For this reason, "Britain and Ireland" is commonly used as a more neutral alternative. Another suggestion, although much less used, is the Islands of the North Atlantic (IONA).

Flag of Ireland

There is no universally agreed flag that represents the island of Ireland. Historically a number of flags were used, including St. Patrick's cross, the flag sometimes used for the Kingdom of Ireland and which represented Ireland on the Union Jack after the Act of Union, a green flag with a harp (used by some radical nationalists in the 19th century and which is also the flag of Leinster), a blue flag with a harp used from the 18th century onwards by many nationalists (now the standard of the President of Ireland), and the Irish tricolour. However as the tricolour is the flag of the Republic of Ireland it is not used to represent the island of Ireland, given that the island also includes Northern Ireland. The Royal Standard also shows a version of an ancient Irish flag in one of its four quadrants. St Patrick's Saltire is used to represent the island of Ireland by the all-island Irish Rugby Football Union (IRFU). In contrast the Gaelic Athletic Association (GAA) uses the tricolour to represent the whole island.

History

Gaelic Athletic Association]] Ireland was mostly ice-covered and joined by land to Britain and Europe during the last ice age, has been inhabited for about 9,000 years. Stone age inhabitants arrived sometime after 8000 BC, with the culture progressing from Mesolithic to high Neolithic over the course of three or four millennia. The Bronze Age, which began around 2500 BC, saw the production of elaborate gold and bronze ornaments and weapons. The Iron Age in Ireland is associated with people now known as Celts. They are traditionally thought to have colonised Ireland in a series of waves between the 8th and 1st centuries BC, with the Gael, the last wave of Celts, conquering the island and dividing it into five or more kingdoms. Many scholars, however, now favour a view that emphasises cultural diffusion from overseas over significant colonisation.The Romans referred to Ireland as Hibernia. Ptolemy in AD 100 records Ireland's geography and tribes. Native accounts are confined to Irish poetry, myth, and archaeology. The exact relationship between Rome and the tribes of Hibernia is unclear; the only references are a few Roman writings. Tradition maintains that in AD 432, St. Patrick arrived on the island and, in the years that followed, worked to convert the Irish to Christianity. The druid tradition collapsed in the face of the spread of the new faith. Irish Christian scholars excelled in the study of Latin learning and Christian theology in the monasteries that flourished, preserving Latin learning during the Early Middle Ages. The arts of manuscript illumination, metalworking, and sculpture flourished and produced such treasures as the Book of Kells, ornate jewellery, and the many carved stone crosses that dot the island. This era was interrupted in the 9th century by 200 years of intermittent warfare with waves of Viking raiders who plundered monasteries and towns. Eventually they settled in Ireland, and established many towns, including the modern day cities of Dublin, Cork, Limerick and Waterford. In 1172, King Henry II of England gained Irish lands by the granting of the 1155 Bull Laudibiliter to him by then English Pope Adrian IV, and from the 13th century, English law began to be introduced. English rule was largely limited to the area around Dublin, known as the Pale, and Waterford, but this began to expand in the 16th century with the final collapse of the Gaelic social and political superstructure at the end of the 17th century, as a result of the Tudor re-conquest of Ireland and English and Scottish Protestant colonisation in the Plantations of Ireland, which established English control over the whole island. After the the Irish Rebellion of 1641, Irish Catholics were barred from voting or attending the Irish Parliament. The new English Protestant ruling class was known as the Protestant Ascendancy In 1800 the Irish Parliament passed the Act of Union which, in 1801, merged the Kingdom of Ireland and the Kingdom of Great Britain to create the United Kingdom of Great Britain and Ireland. The whole island of Ireland would remain within the United Kingdom, ruled directly by the UK Parliament in London. The 19th century saw the Great Famine of the 1840s in which at least 1 million Irish people died and over a million were forced to emigrate. The late 19th and early 20th century saw a vigorous but unsuccessful campaign for Irish home rule, followed by the eclipse of moderate nationalism by militant separatism. In 1922, following the Anglo-Irish War, twenty-six counties of Ireland seceded from the United Kingdom as the Irish Free State. The remaining six, in the north-east, remained within the Union as Northern Ireland. Secession for the rest of Ireland led directly to the Civil War, as militant nationalists split into two factions and turned against one another.

History since partition

Irish Independence: The Irish Free State, Éire, Ireland

The Anglo-Irish Treaty was narrowly ratified by the Dáil in December 1921 but was rejected by a large minority, resulting in the Irish Civil War which lasted until 1923. In 1922, in the middle of this civil war, the Irish Free State came into being. For its first years the new state was governed by the victors of the Civil War. However in the 1930s Fianna Fáil, the party of the opponents of the treaty, were elected into government. The party introduced a new constitution in 1937 which renamed the state to simply "Éire or in the English language, Ireland" (preface to the Constitution). The state was neutral during World War II but offered some assistance to the Allies. In 1949 the state declared itself to be a republic and that henceforth it should be described as the Republic of Ireland. The state was plagued by poverty and emigration until the 1990s. That decade saw the beginning of unprecedented economic success, in a phenomenon known as the "Celtic Tiger". By the early 2000s, it had become one of the richest countries (in terms of GDP per capita) in the European Union, moving from being a net recipient to a net contributor and from a population with net emigration to one with net immigration.

Northern Ireland

From its creation in 1921 until 1972 Northern Ireland enjoyed limited self-government within the United Kingdom, with its own parliament and prime minister. However the Protestant and Catholic communities in Northern Ireland each voted almost entirely along sectarian lines, meaning that the government of Northern Ireland (elected by "first past the post") was always controlled by the Ulster Unionist Party. Consequently, Catholics could not participate in the government, which at times openly encouraged discrimination in housing and employment. Nationalist grievances at unionist discrimination within the state eventually led to large civil rights protests in 1960s, which the government suppressed heavy-handedly, most notably on "Bloody Sunday". It was during this period of civil unrest that the paramilitary Provisional IRA, who favoured the creation of a united Ireland, began its campaign against Unionist rule. Other groups, legal and illegal on the unionist side, and illegal on the nationalist side, began to participate in the violence and the period known as the "Troubles" began. Owing to the civil unrest the British government suspended home rule in 1972 and imposed direct rule. In 1998, following a Provisional IRA cease-fire, the Good Friday Agreement was concluded and attempts began to be made to restore self-government to Northern Ireland on the basis of power sharing between the two communities. Violence has greatly decreased since the signing of the accord. In 2001 the armed police force in the north (which operated much like an army with armoured cars etc.), The Royal Ulster Constabulary (or RUC for short), was removed in place of the PSNI (Police Service of Northern Ireland) as a result of easing tensions. On July 28 2005, the Provisional IRA (PIRA) announced the end of its armed campaign and on September 25 2005 international weapons inspectors supervised the full disarmament of the PIRA.

Sport

Gaelic football and hurling are the most popular sports in Ireland. Along with Camogie, Ladies' Gaelic football, handball and rounders, they make up the national sports of Ireland, collectively known as Gaelic Games. All Gaelic games are governed by the Gaelic Athletic Association (GAA), with the exception of Ladies' Gaelic Football, which is governed by a separate organisation. The GAA is organised on an all-Ireland basis with all 32 counties competing; traditionally, counties first compete within their province, in the provincial championships, and the winners then compete in the All-Ireland senior hurling or football championships. The headquarters of the GAA (and the main stadium) is located at the 83,000 capacity Croke Park in north Dublin. All major GAA games are played here, including the semi-finals and finals of the All-Ireland championships. All GAA players, even at the highest level, are amateurs and receive no wages. The Irish rugby team includes players from north and south, and the Irish Rugby Football Union governs the sport on both sides of the border. Consequently in international rugby, the Ireland team represents the whole island. The same is true of cricket. However, when Ireland was partitioned, organisation of football (soccer) in the Republic was transferred from the Belfast-based Irish Football Association (IFA) to the new Football Association of Ireland (FAI). The IFA remained in charge of the game in the six counties. (Consequently in International Association Football, the island has two teams: the Republic of Ireland, and Northern Ireland.) Northern Ireland qualified for the World Cup Soccer finals in 1958 (where they made it to the quarter finals), 1982 and 1986. The Republic of Ireland made it to the World Cup in 1990 (where they made it to the quarter finals), 1994 and 2002. Greyhound racing and horse racing are both popular in Ireland: greyhound stadiums are well attended and there are frequent horse race meetings. The Republic is noted for the breeding and training of race horses and is also a large exporter of racing dogs. The horse racing sector is largely concentrated in the central east of the Republic. Boxing is also an all-island sport governed by the Irish Amateur Boxing Association. Golf is an extremely popular sport in Ireland and Golfing Tourism is a major industry. The 2006 Ryder Cup will be held in the K Club in Co. Kildare, which is just outside Dublin. Prominent Irish sporting stars are: Sean Kelly (cycling), Stephen Roche (cycling), Brian O'Driscoll (rugby), Roy Keane (soccer), Damien Duff (soccer), D.J. Carey (hurling), Peter Canavan (GAA), Aidan O'Brien (racehorse trainer), Kieren Fallon (jockey), Eddie Jordan (F1), Padraig Harrington (golf), Sonia O'Sullivan (athlethics), Steve Collins (boxing) and Ken Doherty (snooker).

Culture

Literature and the arts

For a comparatively small country, Ireland has made a disproportionately large contribution to world literature in all its branches, mainly in English. Poetry in Irish represents the oldest vernacular poetry in Europe with the earliest examples dating from the 6th century; Jonathan Swift, still often called the foremost satirist in the English language, was wildly popular in his day (Gulliver's Travels, A Modest Proposal, etc.) and remains so in modern times amongst both children and adults. In more recent times, Ireland has produced four winners of the Nobel Prize for Literature: George Bernard Shaw, William Butler Yeats, Samuel Beckett and Seamus Heaney. Although not a Nobel Prize winner, James Joyce is widely considered one of the most significant writers of the 20th century. His 1922 novel Ulysses is sometimes cited as the greatest English-language novel of the 20th century and his life is celebrated annually on June 16th in Dublin as the Bloomsday celebrations. The early history of Irish visual art is generally considered to begin with early carvings found at sites such as Newgrange and is traced through Bronze age artifacts, particularly ornamental gold objects, and the religious carvings and illuminated manuscripts of the mediæval period. During the course of the 19th and 20th centuries, a strong indigenous tradition of painting emerged, including such figures as John Butler Yeats, William Orpen, Jack Yeats and Louis le Brocquy.

Music and dance

The Irish tradition of folk music and dance is also widely known. In the middle years of the 20th century, as Irish society was attempting to modernise, traditional music tended to fall out of favour, especially in urban areas. During the 1960s, and inspired by the American folk music movement, there was a revival of interest in the Irish tradition. This revival was led by such groups as The Dubliners, The Chieftains, the Clancy Brothers and Sweeney's Men and individuals like Sean Ó Riada and Danny O'Flaherty. Irish and Scottish traditional music are similar. Before long, groups and musicians including Horslips, Van Morrison and even Thin Lizzy were incorporating elements of traditional music into a rock idiom to form a unique new sound. During the 1970s and 1980s, the distinction between traditional and rock musicians became blurred, with many individuals regularly crossing over between these styles of playing as a matter of course. This trend can be seen more recently in the work of bands and individuals like U2, Clannad, The Cranberries, Van Morrison, Rory Gallagher, and The Pogues. Nevertheless, Irish music has shown an immense inflation of popularity with many attempting to return to their roots. There are also contemporary music groups that stick closer to a "traditional" sound, including Altan, Gaelic Storm, Lúnasa, and Solas. Others incorporate multiple cultures in a fusion of style, such as Afro Celt Sound System and Canadian Loreena McKennitt. Ireland has done well in the Eurovision Song Contest, being the most successful country in the competition with seven wins. This achievement evokes mixed feelings in many Irish people.

Demographics

Ireland has been inhabited for at least 9000 years, although little is known about the neolithic inhabitants of the island. Early historical and genealogical records note the existance of dozens of different peoples (Attacotti, Conmaicne, Éoganacht, Érainn, Soghain, to name but a few). Over the last 1000 years, there have been influences by the Vikings, who founded several ports, including Dublin, and Normans, with significant admixture to the gene pool. However the greater part of the Irish population descends from the original inhabitants of the island who came after the end of the Ice Age. Although for many years the Irish were believed to be of Celtic origin, recent genetic evidence shows that both the Irish and the Welsh (and to a lesser degree England and Scotland) have many genetic traits in common with the people of the Basque region. Some theorize that although Basque is certainly not a Celtic language, there may have been a Celto-Basque link while others postulate that the pre-Celtic population of the island may have had Basque origins. Both positions are difficult to prove, as the information is relatively new. Culturally however, Ireland is undeniably Celtic. Mingling of native Irish inhabitants with the latinate peoples of Spain, France and Rome during the height of the Roman Empire (and later following the expulsion of many Protestants from the predominantly Catholic Southern France, many of whom subsequently migrated to Ireland) gave rise to what some refer to as Franco-celts or Latin-celts. These people are charecterised particularly by very dark, black hair color, a trait that does not occur in "pure" Anglo-Saxon, and other significant genetic similarities to Southern Europeans. Franco-celts (or Latin-celts) are responsible in part, but not wholey, for the moderately high occurrence of black hair and other Southern European characteristics amongst the Irish population. Ireland's largest religious denomination is Roman Catholicism (about 70%), and most of the rest of the population adhere to one of the various Protestant denominations. The largest is the Church of Ireland. The Irish Muslim community is growing, mostly through increased immigration (see Islam in Ireland). The island also has a small Jewish community (See History of the Jews in Ireland), although this has declined somewhat in recent years. Since joining the EU in 2004, Polish people have been the largest source of immigrants from Eastern Europe, followed by other migrants from Lithuania, the Czech Republic and Latvia. Ireland has also had large numbers of Romanians entering the country since the 1990s. A high standard of living, high wages and EU citizenship attract many of the migrants from the newest of the European Union countries. Nigerians, Chinese and people from other African countries also make up a large proportion of migrants to Ireland.

Infrastructure

Transport

Air

Africa The three most important international airports in the Republic are Dublin Airport, Cork Airport and Shannon Airport. All provide extensive services to the UK, continental Europe and North America. The Irish national airline Aer Lingus and low-cost operator Ryanair are based at Dublin. Shannon is an important stopover on trans-Atlantic route for refuelling operations. There are several smaller regional airports in the Republic (Galway Airport, Kerry Airport, Knock International Airport, Sligo Airport, Waterford Airport) that mostly limit their services to Ireland and the United Kingdom. In Northern Ireland there are three main airports. Belfast International (Aldergrove) provides routes to Ireland and Great Britain, as well as many international services to Europe and recently Belfast-New York (Newark). Belfast City and City of Derry Airport mainly provide flights to Great Britain.

Rail

Great Britain The rail network in Ireland was developed by various private companies with the help of British Government funding throughout the late 19th century, reaching its greatest extent around the 1920s. The broad gauge of 1600 mm (5 ft 3 in) was eventually settled upon throughout the island, although there were narrow gauge (3 ft) railways also. Ireland also has one of the largest freight railways in Europe, operated by Bord na Móna. This company has a narrow gauge railway of 1200 miles. In Dublin a new Light Rail System, named Luas opened in 2004. Two lines serve the south and west suburbs as well as the north city centre. More lines are planned as well as an eventual upgrade to Metro. The scheme is being run by the RPA.

Road

RPA] As with Britain, motorists must drive on the left in Ireland, unfortunately tourists driving on the wrong side of the road cause serious [http://travel.state.gov/travel/cis_pa_tw/cis/cis_1145.html accidents] every year. The island of Ireland has an extensive road network, despite the low quality of many of these until recently. Northern Ireland has historically had better main roads, while the Republic of Ireland has an increasing motorway network, focused on Dublin and the east coast. Historically land owners developed most roads and later Turnpike Trusts collecting tolls so that as early as 1800 Ireland had a 10,000 mile [http://www.cie.ie/about_us/schools_and_enthusiasts.asp road network]. 1815 marked the inauguration of the first horsecar service from Clonmel to Thurles and Limerick. Nowadays the main bus companies are Bus Éireann in the South and Ulsterbus in the North, with Dublin Bus serving the needs of greater Dublin.

Energy

Dublin Bus For much of their existence electricity networks in the Republic of Ireland and Northern Ireland were entirely separate. Both networks were designed and constructed independently, but are now connected with three interlinks and also connected by Northern Ireland Electricity (NIE) through Great Britain to mainland Europe. The Electricity Supply Board (ESB) in the Republic drove a rural electrification programme in the 1940s until the 1970s. The natural gas network is also now all-island, with a connection from Antrim to Scotland. Most of Ireland's gas comes from the Kinsale field. The Corrib Gas Field in Mayo has yet to come online, and is facing some localised opposition over the controversial decision to refine the gas onshore. Ireland, north and south has faced difficulties in providing continuous power at peak load. The situation in Northern Ireland is complicated by the issue of private companies not supplying NIE with enough power, while in the Republic, the ESB has failed to modernise its power stations. In the latter case, availability of power plants has averaged 66% recently, one of the worst such figures in Western Europe. There have been recent efforts in Ireland to use renewable energy such as wind energy with large wind farms being constructed in coastal counties such as Donegal, Mayo and Antrim. Recently what will be the world's largest offshore wind farm is being developed at Arklow Bank off the coast of Wicklow. It is estimated to generate 10% of Irelands energy needs when it is complete. These constructions have in some cases been delayed by opposition from locals, most recently on Achill Island, some of whom consider the wind turbines to be unsightly. Another issue in the Republic of Ireland is the failure of the ageing network to cope with the varying availability of power from such installations. Turlough Hill is the only energy storage mechanism in Ireland.

See also


- List of Ireland-related topics
- Republic of Ireland
- Northern Ireland
- Kingdom of Ireland
- The Ireland Funds
- Irish people

External links


- [http://wikitravel.org/en/Republic_of_Ireland Wikitravel guide to the Republic of Ireland]
- [http://wikitravel.org/en/Northern_Ireland Wikitravel guide to Northern Ireland]
- [http://www.ireland-map.co.uk/ Map of Ireland]
- [http://myweb.tiscali.co.uk/heaven/dnairish.pdf.pdf#search='Ychromosome%20variation%20and%20Irish%20origins' Y-chromosome variation and Irish origin]
- [http://pdphoto.org/PictureHome.php?cid=23&mat=pdef&md=cid Public domain photos of Ireland] Category:Islands in the British Isles Category:Ireland ko:아일랜드 섬 ja:アイルランド島 simple:Ireland th:ไอร์แลนด์

19th century

:Alternative meaning: Nineteenth Century (periodical) The 19th century lasted from 1801 to 1900 in the Gregorian calendar (using the Common Era system of year numbering). Historians sometimes define a "Nineteenth Century" historical era stretching from 1815 (The Congress of Vienna) to 1914 (The outbreak of the First World War).

Europe

For Europe, the period is marked with revolution, social upheaval, and the emergence of a united conservatism from the monarchs of Europe in response to the emerging republican firestorm spreading from revolutionary France. There were many revolutions in Europe in 1848. Furthermore, the later end of the century was dominated by what many call the New Imperialism, which was the rapid aquisition of colonies worldwide by European powers, most noteworthy is the Scramble for Africa. Many countries in Europe underwent an Industrial Revolution, especially Britain and Germany, that spread elsewhere by the end of the century, with factories and railway lines built all over the continent. The start of the 19th century there was a struggle between France and Britain and their allies for control of Europe and the world during the Napoleonic Wars, with Napoleon being finally defeated at Waterloo in 1815. During the rest of the century, the British empire became the largest and most powerful empire in history, during the period known as the Pax Britannica.

Americas

In the Americas, the United States slowly grew economically, militarily, and politically, but nevertheless faced dramatic changes domestically, best seen in the Civil War, the end of slavery, and the expansion across the American continent known as Manifest Destiny. Industrially, America will explode following the Civil War, and would eventually begin expansion outward across the Pacific Ocean and in Latin America.

Other countries

For the rest of the world, there were few places not influenced by the West in some fashion, whether through colonialism, imperialism, or war. European powers gained increasing influence in China, where Qing control had weakened, and wars were fought by the western powers against China, such as the first and the second Opium wars and Sino-French War. Japan, which was forcibly opened to Western trade, began a rapid industrialisation. Africa which was largely free from European control at the start of the century, was almost completely dominated by Europe at the end of it, with the Scramble for Africa in the 1880s and 1890s. Large European settlement, especially British, of colonies such as Australia, New Zealand and the Cape Colony continued during the nineteenth century.

Events


- 1801: The Kingdom of Great Britain and the Kingdom of Ireland merge to form the United Kingdom of Great Britain and Ireland.
- 1803: The United States buys out France's territorial claims in North America via the Louisiana Purchase.
- 1804-06: Americans Meriwether Lewis and William Clark lead an expedition to the Pacific Coast and back.
- 1805-48: Muhammad Ali modernizes Egypt.
- 1806: Holy Roman Empire dissolved as a consequence of the Treaty of Lunéville.
- 1809: Napoleon strips the Teutonic Knights of their last holdings in Bad Mergentheim.
- 1813-1917: The contest between the British Empire and Imperial Russia for control of Central Asia is referred to as the Great Game.
- 1815: Congress of Vienna redraws the European map.
- 1815: Napoleon's defeat at Waterloo brings a conclusion to the Napoleonic Wars and marks the beginning of a Pax Britannica which lasts until 1870.
- 1816: Year Without a Summer
- 1816-28: Shaka's Zulu kingdom becomes the largest in Southern Africa.
- 1819: The modern city of Singapore is established by the British East India Company.
- 1820: Liberia founded by the American Colonization Society for freed American slaves.
- 1830: France invades and occupies Algeria.
- 1830: The Belgian Revolution in the United Kingdom of the Netherlands led to the creation of Belgium.
- 1833: Slavery Abolition Act bans slavery throughout the British Empire.
- 1834: Spanish Inquisition officially ends.
- 1835-36: The Texas Revolution in Mexico resulted in the short-lived Republic of Texas.
- 1837-1901: Queen Victoria's reign is considered the apex of the British Empire and is referred to as the Victorian era.
- 1845-49: Irish Potato Famine
- 1848: The Communist Manifesto published.
- 1848: Revolutions of 1848 in Europe
- 1848-58: California Gold Rush
- 1850: The Little Ice Age ends around this time.
- 1851-60s: Victorian gold rush in Australia
- 1851-64: The Taiping Rebellion in China
- 1854: The Convention of Kanagawa formally ends Japan's policy of Sakoku.
- 1855: Bessemer process enables steel to be mass produced.
- 1856: World's first oil refinery in Romania
- 1857-58: Indian rebellion of 1857
- 1859: The Origin of Species published.
- 1864-67: French intervention in Mexico
- 1865-77: Reconstruction in the United States
- 1866: Successful transatlantic telegraph cable follows an earlier attempt in 1858.
- 1866: Creation of the North German Confederation and the Austrian-Hungarian Dual Monarchy.
- 1866-69: Meiji Restoration in Japan
- 1867: The United States purchased Alaska from Russia.
- 1867: Canadian Confederation formed.
- 1869: First Transcontinental Railroad completed in United States.
- 1869: The Suez Canal opens linking the Mediterranean Sea to the Red Sea.
- 1870-71: Unifications of Germany and Italy.
- 1871-1914: Second Industrial Revolution
- 1870s-90s: Long Depression in Western Europe and North America
- 1872: Yellowstone National Park created.
- 1874: The British East India Company is dissolved.
- 1877: Great Railroad Strike in the United States may have been the world's first nationwide labor strike.
- 1877-78: The Balkans are freed from the Ottoman Empire after another Russo-Turkish War.
- 1878: First commercial telephone exchange in New Haven, Connecticut.
- 1880-1902: Great Britain conquers Dutch settlers in South Africa in two Boer Wars.
- 1882: First electrical power plant and grid in Manhattan.
- 1884-85: The Berlin Conference signals the start of the European Scramble for Africa. Attending nations also agree to ban trade in slaves.
- 1885: Unification of Bulgaria
- 1890: The Wounded Knee Massacre is the last battle in the American Indian Wars.
- 1894-95: After the First Sino-Japanese War, China cedes Taiwan to Japan and grants Japan a free hand in Korea.
- 1895-1896: Ethiopia defeated Italy in the First Italo-Abyssinian War.
- 1896: Olympic games revived in Athens.
- 1896: Klondike Gold Rush in Canada
- 1898: The United States gains control of Cuba, Puerto Rico, and the Philippines after the Spanish-American War.
-