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Seaplane

Seaplane

livery.]] A seaplane is an aircraft designed to take off and land (correctly, though less commonly termed, "alight") upon water. These aircraft are occasionally called hydroplanes, based on usage in several Romance languages, which is rare in English.

Types of seaplane

There are two types of seaplane: the float plane and the flying boat.
- A float plane has slender pontoons mounted under the fuselage. Two floats are common, but many float planes of World War II had a single float under the main fuselage and two small floats on the wings. Only the "floats" of a float plane normally come into contact with water. The fuselage remains above water. Some small land aircraft can be modified to become float planes.
- In a flying boat, the main source of buoyancy is the fuselage, which acts much like a ship's hull in the water. Most flying boats have small floats mounted on their wings to keep them stable. It should be noted that some people feel that the term "seaplane" should only be used to refer to aircraft with floats in place of landing gear, with a flying boat being a distinct type in its own right. For convenience, the above definitions and assumption that flying boats are a type of seaplane are used herein. An amphibious aircraft can both take off and land on conventional runways and take off and land on water, whereas a true seaplane can only take off and land on water. There are amphibious flying boats and amphibious float planes, as well as some hybrid designs, e.g., a seaplane with retractable floats. However, most modern aircraft that are seaplanes that are made, are amphibious and of traditional design.

Seaplane uses and operation

Numerous modern civilian aircraft have a floatplane variant, usually for light duty transportation to lakes and other remote areas. Flying boats have remained in service for fire-fighting duties. Often an amphibious aircraft that can land on land as well as land on water has supplanted a pure water plane. Flying boats livery.]] Seaplanes can only take off and land on water with little or no wave action and, like other aircraft, have trouble in extreme weather. The size of waves a given design can land depends on how big the aircraft is, and the specifics of its shape. Flying boat seaplanes can handle rougher water, and are generally more stable than the float planes on the water. Some of the largest users of seaplanes are rescue organizations such as coast guards because the same aircraft can be used for spotting and rescuing survivors. Seaplanes are much more fuel-efficient than helicopters and, unlike helicopters, can land when they run out of fuel, weather permitting. Seaplanes are often used in remote areas such as Alaska (which has the highest per capita number of floatplanes in the United States) and the Canadian outback, especially in areas with a large number of lakes convenient for takeoff and landing. They may operate on a charter basis, or provide scheduled service.

History of seaplanes

Early development was carried out at Hammondsport, New York by Glenn Curtiss who had beaten Alexander Graham Bell and others in the Aerial Experiment Association. Aerial Experiment Association During World Wars I and II, many navies used seaplanes for reconnaissance and anti-submarine warfare. Most battleships carried one or two catapult-launched seaplanes to spot targets over the horizon for the big guns, or to fight off enemy reconnaissance planes. The failure of the German battleship Bismarck's Arado 196 seaplane to hunt down a PBY Catalina reconnaissance aircraft is said to have contributed to the ship's demise. One of Howard Hughes' best-known endeavors was the H-4 Hercules (nicknamed the "Flying Lumberyard" and, more famously, the "Spruce Goose" — although its frame was built predominantly of birch), a massive flying boat completed just after the end of World War II. The Hercules only flew once (with Hughes at the controls) in 1947. The plane was originally commissioned by the U.S. government for use in World War II, but was not completed until after the War. Today, seaplanes are mostly considered obsolete for military purposes; seaplane tenders, such as HMS Engadine, fell out of use after the 1950s with the general demise of the seaplane, the advent of the first stable, fully-controllable helicopter, and continued development of the modern aircraft carrier. aircraft carrier

See also


- Amphibious aircraft
- Flying boat
- List of flying boats and seaplanes
- Auxiliary cruiser
- ja:水上機

Aircraft

An aircraft is any machine capable of atmospheric flight. flight. This is a wide-bodied long-haul aircraft]]

Categories and classification

Aircraft fall into two broad categories:

Heavier than air


- Heavier than air aerodynes, including autogyros, helicopters and variants, and conventional fixed-wing aircraft: aeroplanes in Commonwealth English (excluding Canada), airplanes in North American English. Fixed-wing aircraft generally use an internal-combustion engine in the form of a piston engine (with a propeller) or a turbine engine (jet or turboprop), to provide thrust that moves the craft forward through the air. The movement of air over the airfoil produces lift that causes the aircraft to fly. Exceptions are gliders which have no engines and gain their thrust, initially, from winches or tugs and then from gravity and thermal currents. For a glider to maintain its forward speed it must descend in relation to the air (but not necessarily in relation to the ground). Helicopters and autogyros use a spinning rotor (a rotary wing) to provide lift; helicopters also use the rotor to provide thrust. The abbreviation VTOL is applied to aircraft other than helicopters that can take off or land vertically. STOL stands for Short Take Off and Landing. Mainly used internationally.

Lighter than air

STOL
- Lighter than air aerostats: hot air balloons and airships. Aerostats use buoyancy to float in the air in much the same manner as ships float on the water. In particular, these aircraft use a relatively low density gas such as helium, hydrogen or heated air, to displace the air around the craft. The distinction between a balloon and an airship is that an airship has some means of controlling both its forward motion and steering itself, while balloons are carried along with the wind.

Types of aircraft

:See also: List of aircraft There are several ways to classify aircraft. Below, we describe classifications by design, propulsion and usage.

By design

A first division by design among aircraft is between lighter-than-air, aerostat, and heavier-than-air aircraft, aerodyne. Examples of lighter-than-air aircraft include non-steerable balloons, such as hot air balloons and gas balloons, and airships (sometimes called dirigible balloons) such as blimps (that have non-rigid construction) and rigid airships that have a rigid frame. The most successful type of rigid airship was the Zeppelin, although there were some accidents such as the Hindenburg Zeppelin which was destroyed in a fire at Lakehurst, NJ, in 1937. In heavier-than-air aircraft, there are two ways to produce lift: aerodynamic lift and engine lift. In the case of aerodynamic lift, the aircraft is kept in the air by wings or rotors (see aerodynamics). With engine lift, the aircraft defeats gravity by use of vertical thrust greater than its weight. Examples of engine lift aircraft are rockets, and VTOL aircraft such as the Hawker-Siddeley Harrier. Among aerodynamically lifted aircraft, most fall in the category of fixed-wing aircraft, where horizontal airfoils produce lift, by profiting from airflow patterns determined by Bernoulli's equation and, to some extent, the Coanda effect. The forerunner of these type of aircraft is the kite. Kites depend upon the tension between the cord which anchors it to the ground and the force of the wind currents. Much aerodynamic work was done with kites until test aircraft, wind tunnels and now computer modelling programs became available. In a "conventional" configuration, the lift surfaces are placed in front of a control surface or tailplane. The other configuration is the canard where small horizontal control surfaces are placed forward of the wings, near the nose of the aircraft. Canards are becoming more common as supersonic aerodynamics grows more mature and because the forward surface contributes lift during straight-and-level flight. The number of lift surfaces varied in the pre-1950 period, as biplanes (two wings) and triplanes (three wings) were numerous in the early days of aviation. Subsequently most aircraft are monoplanes. This is principally an improvement in structures and not aerodynamics. Other possibilities include the delta-wing, where lift and horizontal control surfaces are often combined, and the flying wing, where there is no separate vertical control surface (e.g. the B-2 Spirit). A variable geometry ('swing-wing') has also been employed in a few examples of combat aircraft (the F-111, Panavia Tornado, F-14 Tomcat and B-1 Lancer, among others). The lifting body configuration is where the body itself produce lift. So far the only significant practical application of the lifting body is in the Space Shuttle, but many aircraft generate lift from nothing other than wings alone. A second category of aerodynamically lifted aircraft are the rotary-wing aircraft. Here, the lift is provided by rotating aerofoils or rotors. The best-known examples are the helicopter, the autogyro and the tiltrotor aircraft (such as the V-22 Osprey). Some craft have reaction-powered rotors with gas jets at the tips but most have one or more lift rotors powered from engine-driven shafts. A further category might encompass the wing-in-ground-effect types, for example the Russian ekranoplan also nicknamed the "Caspian Sea Monster" and hovercraft; most of the latter employing a skirt and achieving limited ground or water clearance to reduce friction and achieve speeds above those achieved by boats of similar weight. A recent innovation is a completely new class of aircraft, the fan wing. This uses a fixed wing with a forced airflow produced by cylindrical fans mounted above. It is (2005) in development in the United Kingdom. And finally the flapping-wing ornithopter is a category of its own. These designs may have potential but are not yet practical.

By propulsion

ornithopter adapted as a floatplane]] Some types of aircraft, such as the balloon or glider, do not have any propulsion. Balloons drift with the wind, though normally the pilot can control the altitude either by heating the air or by releasing ballast, giving some directional control (since the wind direction changes with altitude). For gliders, takeoff takes place from a high location, or the aircraft is pulled into the air by a ground-based winch or vehicle, or towed aloft by a powered "tug" aircraft. Airships combine a balloon's buoyancy with some kind of propulsion, usually propeller driven. Until World War II, the internal combustion piston engine was virtually the only type of propulsion used for powered aircraft. (See also: Aircraft engine.) The piston engine is still used in the majority of aircraft produced, since it is efficient at the lower altitudes used by small aircraft, but the radial engine (with the cylinders arranged in a circle around the crankshaft) has largely given way to the horizontally-opposed engine (with the cylinders lined up on two sides of the crankshaft). Water cooled V engines, as used in automobiles, were common in high speed aircraft, until they were replaced by jet and turbine power. Piston engines typically operate using avgas or regular gasoline, though some new ones are being designed to operate on diesel or jet fuel. Piston engines normally become less efficient above 7,000-8,000 ft (2100-2400 m) above sea level because there is less oxygen available for combustion; to solve that problem, some piston engines have mechanically powered compressors (blowers) or turbine-powered turbochargers or turbonormalizers that compress the air before feeding it into the engine; these piston engines can often operate efficiently at 20,000 ft (6100 m) above sea level or higher, altitudes that require the use of supplemental oxygen or cabin pressurisation. During the forties and especially following the 1973 energy crisis, development work was done on propellers with swept tips or even scimitar-shaped blades for use in high-speed commercial and military transports. Pressurised aircraft, however, are more likely to use the turbine engine, since it is naturally efficient at higher altitudes and can operate above 40,000 ft. Helicopters also typically use turbine engines. In addition to turbine engines like the turboprop and turbojet, other types of high-altitude, high-performance engines have included the ramjet and the pulse jet. Rocket aircrafts have occasionally been experimented with. They are restricted to rather specialised niches, such as spaceflight, where no oxygen is available for combustion (rockets carry their own oxygen).

By usage

The major distinction in aircraft usage is between military aviation, which includes all uses of aircraft for military purposes (such as combat, patrolling, search and rescue, reconnaissance, transport, and training), and civil aviation, which includes all uses of aircraft for non-military purposes.
Military aircraft
Combat aircraft like fighters or bombers represent only a minority of the category. Many civil aircraft have been produced in separate models for military use, such as the civil Douglas DC-3 airliner, which became the military C-47/C-53/R4D transport in the U.S. military and the Dakota in Britain and the Commonwealth. Even the little fabric-covered two-seater Piper J3 Cub had a military version, the L-4 liaison, observation and trainer aircraft. In the past, gliders and balloons have also been used as military aircraft; for example, balloons were used for observation during the American Civil War and World War I, and cargo gliders were used during World War II to land intruding German troops in many European countries in the 1940/42 period, while Allied troops used them in Europe after D-Day . Combat aircraft themselves, though used a handful of times for reconnaissance and surveillance during the Italo-Turkish War, did not come into widespread use until the Balkan War when first air-dropped bomb was invented and widely used by Bulgarian air force against Turkey. During World War I many types of aircraft were adapted for attacking the ground or enemy vehicles/ships/guns/aircraft, and the first aircraft designed as bombers were born. In order to prevent the enemy from bombing, fighter aircraft were developed to intercept and shoot down enemy aircraft. Tankers were developed after World War II to refuel other aircraft in mid-air, thus increasing their operational range. By the time of the Vietnam War, helicopters had come into widespread military use, especially for transporting and supporting ground troops.
Civil aviation
helicopter]] Civil aviation includes both scheduled airline flights and general aviation, a catch-all covering other kinds of private and commercial use. The vast majority of flights flown around the world each day belong to the general aviation category, ranging from recreational balloon flying to civilian flight training to business trips to firefighting to medevac flights to cargo transportation on freight aircraft. Within general aviation, the major distinction is between private flights (where the pilot is not paid for time or expenses) and commercial flights (where the pilot is paid by a customer or employer). Private pilots use aircraft primarily for personal travel, business travel, or recreation. Usually these private pilots own their own aircraft and take out loans from banks or specialized lenders to purchase them. Commercial general aviation pilots use aircraft for a wide range of tasks, such as flight training, pipeline surveying, passenger and freight transport, policing, crop dusting, and medical transport (medevac). Piston-powered propeller aircraft (single-engine or twin-engine) are especially common for both private and commercial general aviation, but even private pilots occasionally own and operate helicopters like the Bell JetRanger or turboprops like the Beechcraft King Air. Business jets are typically flown by commercial pilots, although there is a new generation of small jets arriving soon for private pilots.

Related topics


- List of aircraft by category
- List of aircraft by date and usage category
- List of civil aircraft
- List of helicopter models
- List of military aircraft
- List of World War II jet aircraft
- List of aircraft engines
- List of aircraft engine manufacturers (alphabetical)
- Aerial refuelling
- Aeronautics
- Aircraft carrier
- Aircraft spotting
- Airline call signs
- Airliner
- Air safety
- Aviation
- Contrail
- First flying machine
- Flight controls
- Flight instruments
- Gliding
- Lifting body
- List of early flying machines
- Model aircraft
- Mobile phones on aircraft
- Spacecraft propulsion
- Spacecraft
- Steam aircraft
- Successful aircraft types
- Undercarriage
- Wright brothers
- List of aviation, aerospace and aeronautical terms

External links

History
- [http://www.nasm.si.edu/ Smithsonian Air and Space Museum] - Excellent online collection with a particular focus on history of aircraft and spacecraft
- [http://invention.psychology.msstate.edu/Tale_of_Airplane/taleplane.html Virtual Museum]
- [http://www.centennialofflight.gov/essay/Prehistory/PH-OV.htm Prehistory of Powered Flight]
- [http://www.hq.nasa.gov/office/pao/History/SP-468/contents.htm The Evolution of Modern Aircraft (NASA)]
- [http://www.check-six.com Check-Six] - Information on historic aircraft crashes including the X-15 and Flying Wing
- [http://www.anythingplanes.net Aircraft community ] Information
- [http://www.aircraft-info.net Aircraft-Info.net]
- [http://www.airliners.net/info/ Airliners.net]
- [http://www.HomebuiltAircraft.com HomebuiltAircraft.com]- Information Portal about Homebuilt Aircraft
- [http://www.DefenceTalk.com Airforces ]
- [http://www.challoner.com/aviation/index.html Series of Photo Essays on British Aviation]
- [http://www.usenet-replayer.com/webrings/aviation.html Pictures of Aircraft] published on Usenet
- [http://www.sulman4paf.tk PAF Procedures and Information, Wallpapers, Picture Gallery, Updated News] Patents
- US[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=821393.WKU.&OS=PN/821393&RS=PN/821393 821393] -- Flying machine -- O. & W. Wright Category:Aircraft Category:Aviation zh-min-nan:Hui-hêng-ki ko:항공기 ms:Pesawat udara ja:航空機 simple:Aircraft

English language

English is a West Germanic language that is spoken in the United Kingdom, United States, Canada, Australia, New Zealand, Ireland, South Africa, and many other countries. English is now the third-most spoken native language worldwide (after Chinese and Hindi), with some 380 million speakers. It has lingua franca status in many parts of the world, due to the military, economic, scientific, political and cultural influence of the British Empire in the 18th and 19th centuries and that of the United States from the 20th century to the present. Through the global influence of native English speakers in cinema, airlines, broadcasting, science, and the Internet in recent decades, English is now the most widely learned second language in the world. Many students worldwide are required to learn some English, and a working knowledge of English is required in many fields and occupations.

History

English is a West Germanic language that originated from the Old Saxon language brought to Britain by Germanic settlers from various parts of northwest Germany. The original Old English language was subsequently influenced by two successive waves of invasion. The first was by speakers of languages in the Scandinavian branch of the Germanic family, who colonised parts of Britain in the 8th and 9th centuries. The second wave was of the Normans in the 11th century, who spoke a variety of French. These two invasions caused English to become "creolised" to some degree (though it was never a full creole in the linguistic sense of the word); creolisation arises from the cohabitation of speakers of different languages, who develop a hybrid tongue for basic communication. Cohabitation with the Scandinavians resulted in a significant grammatical simplification and lexical enrichment of the Anglo-Friesian core of English; the later Norman occupation led to the grafting onto that Germanic core a more elaborate layer of words from the Romance branch of European languages; this new layer entered English through use in the courts and government. Thus, English developed into a "borrowing" language of considerable suppleness and huge vocabulary. According to the Anglo-Saxon Chronicle, around the year 449, Vortigern, King of the British Isles, invited the "Angle kin" (Angles led by Hengest and Horsa) to help him against the Picts. In return, the Angles were granted lands in the south-east. Further aid was sought, and in response "came men of Ald Seaxum of Anglum of Iotum" (Saxons, Angles, and Jutes). The Chronicle talks of a subsequent influx of settlers who eventually established seven kingdoms, known as the heptarchy. Modern scholarship considers most of this story to be legendary and politically motivated. These Germanic invaders dominated the original Celtic-speaking inhabitants, whose languages survived largely in Scotland, Wales, Cornwall, and Ireland. The dialects spoken by the invaders formed what would be called Old English, which resembled some coastal dialects in what are now the Netherlands and north-west Germany. Later, it was strongly influenced by the North Germanic language Norse, spoken by the Vikings who settled mainly in the north-east (see Jorvik). The new and the earlier settlers spoke languages from different branches of the Germanic family; many of their lexical roots were the same or similar, although their grammars were more distant, including the prefixes, suffixes and inflections of many of their words. The Germanic language of these Old English inhabitants of Britain would be partly creolised by the contact with Norse invaders. This resulted in a stripping away of much of the grammar of Old English, including gender and case, with the notable exception of the pronouns; thus, the language became simpler and plainer. The most famous work from the Old English period is the epic poem "Beowulf", by an unknown poet. For the 300 years following the Norman Conquest in 1066, the Norman kings and the high nobility spoke only a variety of French. A large number of Norman words were assimilated into Old English, with some words doubling for Old English words (for instance, ox/beef, sheep/mutton). The Norman influence reinforced the continual evolution of the language over the following centuries, resulting in what is now referred to as Middle English. Among the changes was a broadening in the use of a unique aspect of English grammar, the "continuous" tenses, with the suffix "-ing". During the 15th century, Middle English was transformed by the Great Vowel Shift, the spread of a standardised London-based dialect in government and administration, and the standardising effect of printing. Modern English can be traced back to around the time of William Shakespeare. The most well-known work from the Middle English period is Geoffrey Chaucer's The Canterbury Tales.

Classification and related languages

The English language belongs to the western subbranch of the Germanic branch of the Indo-European family of languages. The closest living relative of English is Scots (Lallans), a West Germanic language spoken mostly in Scotland and parts of Northern Ireland. Like English, Scots is a direct descendant of Old English, also known as Anglo-Saxon. After Scots, the next closest relative is Frisian—spoken in the Netherlands and Germany. Other less closely related living languages include Dutch, Afrikaans, German, Plattdüütsch and the Scandinavian languages. Many French words are also intelligible to an English speaker (pronunciations are not always identical, of course), because English absorbed a tremendous amount of vocabulary from French, via the Norman language after the Norman conquest and directly from French in further centuries; as a result, a substantial share of English vocabulary is quite close to the French, with some minor spelling differences (word endings, use of old French spellings, etc.), as well as occasional differences in meaning.

Geographic distribution

Norman conquest English is the second or third most widely spoken language in the world today; a total of 600–700 million people use English regularly. About 377 million people use English as their mother tongue, and an equal number of people use it as their second or foreign language. It is used widely in either the public or private sphere in more than 100 countries all over the world. In addition, the language has occupied a primary place in international academic and business communities. The current status of the English language compares with that of Latin in the past. English is the primary language in Antigua and Barbuda, Australia (Australian English), the Bahamas, Barbados (Caribbean English), Bermuda, Belize, Canada (Canadian English), the Cayman Islands, Dominica, the Falkland Islands, Gibraltar, Grenada, Guernsey, Guyana, Ireland (Irish English), Isle of Man, Jamaica (Jamaican English), Jersey, Montserrat, New Zealand (New Zealand English), Saint Helena, Saint Lucia, Saint Kitts and Nevis, Saint Vincent and the Grenadines, Trinidad and Tobago, the Turks and Caicos Islands, the United Kingdom (various forms of British English), the U.S. Virgin Islands, and the United States. English is also an important minority language of South Africa (South African English), and in several other former colonies and current dependent territories of the United Kingdom and the United States, for example Guam and Mauritius. In Hong Kong, English is an official language and is widely used in business activities. It is taught from kindergarten, and is the medium of instruction for a few primary schools, many secondary schools and all universities. Substantial numbers of students acquire native-speaker level. It is so widely used and spoken that it is inadequate to say it is merely a second or foreign language, though there are still many people in Hong Kong with poor or no command of English. The majority of English native speakers (67 to 70 per cent) live in the United States. Although the U.S. federal government has no official languages, it has been given official status by 27 of the 50 state governments, most of which have declared English their sole official language. Hawaii, Louisiana, and New Mexico have also designated Hawaiian, French, and Spanish, respectively, as official languages in conjunction with English. In many other countries where English is not a major first language, it is an official language; these countries include Cameroon, Fiji, the Federated States of Micronesia, Ghana, Gambia, India, Kiribati, Lesotho, Liberia, Kenya, Namibia, Nigeria, Malta, the Marshall Islands, Pakistan, Papua New Guinea, the Philippines, Rwanda, the Solomon Islands, Samoa, Sierra Leone, Swaziland, Tanzania, Zambia and Zimbabwe. English is the most widely learned and used foreign language in the world, and as such, many linguists believe it is no longer the exclusive cultural emblem of "native English speakers", but rather a language that is absorbing aspects of cultures worldwide as it grows in use. Others believe that there are limits to how far English can go in suiting everyone for communication purposes. It is the language most often studied as a foreign language in Europe (32.6 per cent), followed by French, German, and Spanish. It is also the most studied in Japan, South Korea and in the Republic of China (Taiwan), where it is compulsory for most high school students. See English as an additional language.

English as a global language

See also: English on the Internet Because English is so widely spoken, it has been referred to as a "global language". While English is not the official language in many countries, it is the language most often taught as a second language around the world. It is also, by international treaty, the official language for aircraft/airport communication. Its widespread acceptance as a first or second language is the main indication of its global status. There are numerous arguments for and against English as a global language. On one hand, having a global language aids in communication and in pooling information (for example, in the scientific community). On the other hand, it excludes those who, for one reason or another, are not fluent. It can also marginalise populations whose first language is not the global language, and lead to a cultural hegemony of the populations speaking the global language as a first language. Most of these arguments hold for any candidate for a global language, though the last two counter-arguments do not hold for languages not belonging to any ethnic group (like Esperanto). A secondary concern with respect to the spread of global languages (English, Spanish, etc.) is the resulting disappearance of minority languages, often along with the cultures and religions that are primarily transmitted in those languages. English has been implicated in a number of historical and ongoing so-called "language deaths" and "linguicides" around the world, many of which have also led to the loss of cultural heritage. In the Americas, Native American nations have been most strongly affected by this phenomenon.

Dialects and regional variants

The expansiveness of the British and the Americans has spread English throughout the globe. Because of its global spread, it has bred a variety of English dialects and English-based creoles and pidgins. The major varieties of English in most cases contain several subvarieties, such as Cockney within British English, Newfoundland English within Canadian English, and African American Vernacular English ("Ebonics") within American English. English is considered a pluricentric language, with no variety being clearly considered the only standard. Some consider Scots as an English dialect. Pronunciation, grammar and lexis differ, sometimes substantially. The Scottish dialect retains many German aspects including guttural pronunciations. Because of English's wide use as a second language, English speakers can have many different accents, which may identify the speaker's native dialect or language. For more distinctive characteristics of regional accents, see Regional accents of English speakers. For more distinctive characteristics of regional dialects, see List of dialects of the English language. Many countries around the world have blended English words and phrases into their everyday speech and refer to the result by a colloquial name that implies its bilingual origins, which parallels the English language's own addiction to loan words and borrowings. Named examples of these ad-hoc constructions, distinct from pidgin and creole languages, include Engrish, Wasei-eigo, Franglais and Spanglish. (See List of dialects of the English language for a complete list.) Europanto combines many languages but has an English core.

Constructed variants of English


- Basic English is simplified for easy international use. It is used by some aircraft manufacturers and other international businesses to write manuals and communicate. Some English schools in the Far East teach it as an initial practical subset of English.
- Special English is a simplified version of English used by the Voice of America. It uses a vocabulary of 1500 words.
- English reform is an attempt to improve collectively upon the English language.
- Seaspeak and the related Airspeak and Policespeak, all based on restricted vocabularies, were designed by Edward Johnson in the 1980s to aid international co-operation and communication in specific areas.
- European English is a new variant of the English language created to become the common language in Europe.

Sounds

Vowels

Notes: It is the vowels that differ most from region to region. Where symbols appear in pairs, the first corresponds to the sounds used in North American English, the second corresponds to English spoken elsewhere. #North American English lacks this sound; words with this sound are pronounced with or . According to The Canadian Oxford Dictionary (1998), this sound is present in Standard Canadian English. #Many dialects of North American English do not have this vowel. See cot-caught merger. #The North American variation of this sound is a rhotic vowel. #Many speakers of North American English do not distinguish between these two unstressed vowels. For them, roses and Rosa's are pronounced the same, and the symbol usually used is schwa . #This sound is often transcribed with or with . #The letter U can represent either /u/ or the iotated vowel /ju/.

Consonants

This is the English Consonantal System using symbols from the International Phonetic Alphabet (IPA). #The velar nasal is a non-phonemic allophone of /n/ in some northerly British accents, appearing only before /g/. In all other dialects it is a separate phoneme, although it only occurs in syllable codas. #The alveolar flap is an allophone of /t/ and /d/ in unstressed syllables in North American English and increasingly in Australian English. This is the sound of "tt" or "dd" in the words latter and ladder, which are homophones in North American English. This is the same sound represented by single "r" in some varieties of Spanish. #In some dialects, such as Cockney, the interdentals /θ/ and /ð/ are usually merged with /f/ and /v/, and in others, like African American Vernacular English, /ð/ is merged with /d/. In some Irish varieties, /θ/ and /ð/ become the corresponding dental plosives, which then contrast with the usual alveolar plosives. #The sounds are labialised in some dialects. Labialisation is never contrastive in initial position and therefore is sometimes not transcribed. #The voiceless velar fricative /x/ is used only by Scottish or Welsh speakers of English for Scots/Gaelic words such as loch or by some speakers for loanwords from German and Hebrew like Bach or Chanukah /xanuka/, or in some dialects such as Scouse (Liverpool) where the affricate [kx] is used instead of /k/ in words such as docker . Most native speakers have a great deal of trouble pronouncing it correctly when learning a foreign language. Most speakers use the sounds [k] and [h] instead. #Voiceless w is found in Scottish, Irish, some upper-class British, some eastern United States, and New Zealand accents. In all other dialects it is merged with /w/.

Voicing and Aspiration

Voicing and aspiration of stop consonants in English depend on dialect and context, but a few general rules can be given:
- Voiceless plosives and affricates (//, //, //, and //) are aspirated when they are word-initial or begin a stressed syllable and are not part of a consonant cluster—compare pin [] and spin [].
  - In some dialects, aspiration extends to unstressed syllables as well.
  - In other dialects, such as Indian English, most or all voiceless stops may remain unaspirated.
- Word-initial voiced plosives may be devoiced in some dialects.
- Word-terminal voiceless plosives may be unreleased or accompanied by a glottal stop in some dialects (e.g. many varieties of American English)—examples: tap [], sack [].
- Word-terminal voiced plosives may be devoiced in some dialects (e.g. some varieties of American English)—examples: sad [], bag []. In other dialects they are fully voiced in final position, but only partially voiced in initial position.

See also

International Phonetic Alphabet for English

Intonation

Tone groups

English is an Intonation language. This means that the pitch of the voice is used syntactically, for example, to convey surprise and irony, or to change a statement into a question. In English, intonation patterns are on groups of words, which are called tone groups, tone units, intonation groups or sense groups. Tone groups are said on a single breath and, as a consequence, are of limited length, more often being on average five words long or lasting roughly two seconds. The structure of tone groups can have a crucial impact on the meaning of what is said. For example: :- :- :-

Characteristics of intonation

Each tone group can be subdivided into syllables, which can either be stressed (strong) or unstressed (weak). There is always a strong syllable, which is stressed more than the others. This is called the nuclear syllable. For example: :That | was | the | best | thing | you | could | have | done! Here, all syllables are unstressed, except the syllables/words "best" and "done", which are stressed. "Best" is stressed harder and, therefore, is the nuclear syllable. The nuclear syllable carries the main point the speaker wishes to make. For example: :John had stolen that money. (... not I) :John had stolen that money. (... you said he hadn't) :John had stolen that money. (... he wasn't given it) :John had stolen that money. (... not this money) :John had stolen that money. (... not something else) The nuclear syllable is spoken louder than all the others and has a characteristic change of pitch. The changes of pitch most commonly encountered in English are the rising pitch and the falling pitch, although the fall-rising pitch and/or the rise-falling pitch are sometimes used. For example: :When do you want to be paid? :Nów? (rising pitch. In this case, it denotes a question: can I be paid now?) :Nòw (falling pitch. In this case, it denotes a statement: I choose to be paid now)

Grammar

English grammar is based on its Germanic roots, though some scholars during the 1700s and 1800s attempted to impose Latin grammar upon it, with little success. English is just slightly inflected, much less so than most Indo-European languages. It compensates for this by placing more grammatical information in auxiliary words and word order. Unlike most other Indo-European languages, modern nominal groups (nouns) in English do not carry gender, although an archaic form of gender is technically assigned as either masculine, feminine, neuter or common. Engendered nouns are only apparent in special cases, such as "I loved that ship as if she were my own", where the noun "ship" is referred to by its feminine pronoun.

Vocabulary

Almost without exception, Germanic words (which include all the basics such as pronouns and conjunctions) are shorter and more informal. Latinate words are often regarded as more elegant or educated. However, the excessive use of Latinate words is often mistaken for either pretentiousness (as in the stereotypical policeman's talk of "apprehending the suspect") or obfuscation (as in a military document which says "neutralise" when it means "kill"). George Orwell's essay Politics and the English Language gives a thorough treatment of this feature of English. An English speaker is often able to choose between Germanic and Latinate synonyms: "come" or "arrive"; "sight" or "vision"; "freedom" or "liberty"—and sometimes also between a word inherited through French and a borrowing direct from Latin of the same root word: "oversee", "survey" or "supervise". The richness of the language is that such synonyms have slightly different meanings, enabling the language to be used in a very flexible way to express fine variations or shades of thought. List of Germanic and Latinate equivalents In everyday speech the majority of words will normally be Germanic. If a speaker wishes to make a forceful point in an argument in a very blunt way, Germanic words will usually be chosen. A majority of Latinate words (or at least a majority of content words) will normally be used in more formal speech and writing, such as a courtroom or an encyclopedia article. English is noted for the vast size of its active vocabulary and its fluidity. English easily accepts technical terms into common usage and imports new words which often come into common usage. In addition, slang provides new meanings for old words. In fact this fluidity is so pronounced that a distinction often needs to be made between formal forms of English and contemporary usage. See also sociolinguistics.

Number of words in English

As the General Explanations at the beginning of the Oxford English Dictionary state: :The Vocabulary of a widely diffused and highly cultivated living language is not a fixed quantity circumscribed by definite limits.... there is absolutely no defining line in any direction: the circle of the English language has a well-defined centre but no discernible circumference. The vocabulary of English is undoubtedly vast, but assigning a specific number to its size is more a matter of definition than of calculation. Unlike other languages, there is no Academy to define officially accepted words. Neologisms are coined regularly in medicine, science and technology—some enter wide usage; others remain restricted to small circles. Foreign words used in immigrant communities often make their way into wider English usage. Archaic, dialectal, and regional words might be considered "English" or not. The Oxford English Dictionary (2nd edition) includes over 500,000 headwords, following a rather inclusive policy: :It embraces not only the standard language of literature and conversation, whether current at the moment, or obsolete, or archaic, but also the main technical vocabulary, and a large measure of dialectal usage and slang (Supplement to the OED, 1933). The difficulty of defining the number of words is compounded by the emergence of new versions of English, such as Asian English.

Word origins

One of the consequences of the French influence is that the vocabulary of English is, to a certain extent, divided between those words which are Germanic (mostly Old English) and those which are "Latinate" (Latin-derived, mostly from Norman French but some borrowed directly from Latin). A computerised survey of about 80,000 words in the old Shorter Oxford Dictionary (3rd ed.) was published in Ordered Profusion by Thomas Finkenstaedt and Dieter Wolff (1973) which estimated the origin of English words as follows:
- French, including Old French and early Anglo-French: 28.3%
- Latin, including modern scientific and technical Latin: 28.24%
- Old and Middle English, Old Norse, and Dutch: 25%
- Greek: 5.32%
- No etymology given: 4.03%
- Derived from proper names: 3.28%
- All other languages contributed less than 1% James D. Nicoll made the oft-quoted observation: "The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and riffle their pockets for new vocabulary." [http://groups.google.com/groups?selm=1990May15.155309.8892%40watdragon.waterloo.edu&oe=UTF-8&output=gplain]

Writing system

English is written using the Latin alphabet. The spelling system or orthography of English is historical, not phonological. The spelling of words often diverges considerably from how they are spoken, and English spelling is often considered to be one of the most difficult to learn of any language that uses an alphabet. See English orthography.

Basic sound-letter correspondence

Written accents

English includes some words which can be written with accent marks. These words have mostly been imported from other languages, usually French. But it is increasingly rare for writers of English to actually use the accent marks for common words, even in very formal writing, to the point where actually writing the accent may be interpreted as a sign of pretension—though this view is counterbalanced by the view that fine typography should preserve accents, especially where it makes a distinction in pronunciation (compare façade vs. facade which would rhyme with cascade). The strongest tendency to retain the accent is in words that are atypical of English morphology and therefore still perceived as slightly foreign. For example, café has a pronounced final e, which would be silent by the normal English pronunciation rules. Some examples: ångström, appliqué, attaché, blasé, bric-à-brac, café, cliché, crème, crêpe, façade, fiancé(e), flambé, naïve, né(e), papier-mâché, passé, piñata, protégé, raison d'être, résumé, risqué, über-, vis-à-vis, voilà. For a more complete list, see List of English words with diacritics. Some words such as rôle and hôtel were first seen with accents when they were borrowed into English, but now the accent is almost never used. The words were considered very French borrowings when first used in English, even accused by some of being foreign phrases used where English alternatives would suffice, but today their French origin is largely forgotten. The accent on "élite" has disappeared from most publications today, but Time magazine still uses it. For some words such as "soupçon" however, the only spelling found in English dictionaries (the OED and others) uses the diacritic. Italics, with appropriate accents, are generally applied to foreign terms that are uncommonly used in or have not been assimilated into English: for example, adiós, coup d'état, crème brûlée, pièce de résistance, raison d'être, über (übermensch), vis-à-vis. It is also possible to use a diaeresis to indicate a syllable break, but again this is often left out or a hyphen used instead. Examples: coöperate (or co-operate), daïs, naïve, noël, reëlect (or re-elect). One publication that still uses a diaeresis to indicate a syllable break is the New Yorker magazine. Written accents are also used occasionally in poetry and scripts for dramatic performances to indicate that a certain normally unstressed syllable in a word should be stressed for dramatic effect, or to keep with the meter of the poetry. This use is frequently seen in archaic and pseudoarchaic writings with the "-ed" suffix, to indicate that the "e" should be fully pronounced, as with cursèd. In certain older texts (typically in Commonwealth English), the use of ligatures is common in words such as archæology, œsophagus, and encyclopædia. Such words have Latin or Greek origin. Nowadays, the ligatures have been generally replaced in Commonwealth English by the separated letters "ae" and "oe" ("archaeology", "oesophagus") and in American English by "e" ("archeology", "esophagus"). However, the spellings "oeconomy" and "oecology" are now generally replaced by "economy" and "ecology" in Commonwealth English, making these spellings the same as in American English.

See also


- English literature
- Formal written English - regional differences
- List of languages
- Common phrases in various languages

Dialects


- American and British English differences
- English speaking Europe
- General American
- List of dialects of the English language

Pronunciation


- General American
- International Phonetic Alphabet for English
- List of words of disputed pronunciation
- Non-native pronunciations of English
- Phonemic differentiation in English
- Received Pronunciation
- Regional accents of English speakers
- Rhotic and non-rhotic accents

Social, cultural or political


- English as a lingua franca for Europe
- English as an additional language
- English on the Internet
- Foreign language influences in English
- Languages in the United States
- Lists of English words of international origin
- Anglosphere
- Anglo-Saxon

Grammar


- English declension
- English plural
- English verb conjugation
- Initial-stress-derived noun
- Present progressive tense

Usage


- Dictionary
- Like
- List of archaic English words and their modern equivalents
- List of unusual English words
- Longest word in English
- Misspelling
- Gender-neutral language
- Singular they
- Siamese twins (English language)

External links


- [http://www.abroadlanguages.com/al/english/ Learning English abroad] and online. With dictionaries, games, penpals, etc.
- [http://www.bbc.co.uk/radio4/routesofenglish/index.shtml BBC - Radio 4 - Routes of English]
- [http://www.englishtenseswithcartoons.com Short Discriptions of the English Tenses]
- [http://www.ego4u.com/ English Grammar Online] free exercises, explanations, games and teaching materials on English as a foreign language
- [http://www.eslbase.com/ TEFL] - Teaching English as a Foreign Language - information and advice
- http://www.teach-yourself-english.com/ Easy-going learning aid
- [http://www.englisch-hilfen.de/en Learning English Online] grammar, vocabulary, exercises, exams - English as a second language.
- [http://www.english.hb.pl Pako's English Page - Articles and advice on learning English]
- [http://www.ethnologue.com/show_language.asp?code=eng Ethnologue report for English]
- [http://www.LanguageMonitor.com LanguageMonitor] - Watchdog on contemporary English usage
- [http://www.vec.ca/english/1/english.cfm Development of English]
- [http://www.esu.org English Speaking Union]
- [http://www2.ignatius.edu/faculty/turner/languages.htm The World's Most Widely Spoken Languages]
- [http://www.antimoon.com/ Antimoon - How to learn English] - Advice and inspiration for learners of English.
- [http://www.zozanga.com/ Zozanga ESL - Learn Online English] How to learn English.
- [http://www.quiz-tree.com/English_Spelling_main.html Free English spelling quizzes]
- [http://inenglishofcourse.pl Conversation and Resource Point for Learners of English]
- [http://www.globalenglishsalon.com Global English Salon] - Listen to English online free.
- [http://www.loecsen.com/travel/discover_pop.php?lang=en&to_lang=2&learn-English/ Learn and listen to useful expressions in English] Each expression is presented with an audio recording and an illustration
- [http://www.whatdoesthatmean.com What Does That Mean?] A wiki based lexicon of English idioms from around the world
- [http://www1.ku-eichstaett.de/SLF/EngluVglSW/ELiX/bge.pdf Basic Global English]

Dictionaries


- [http://www.oed.com Oxford English Dictionary] The definitive record of the English language
- [http://dicts.info/dictlist1.php All free English dictionaries] Collection of many free English dictionaries.
- [http://dictionary.cambridge.org Cambridge Dictionary]
- [http://www.freelang.net/dictionary/french.html Freelang - French-English Dictionary made by Bertrand Cornu]

Further reading


- Baugh AC and Cable T. A history of the English language (5th ed), Rouledge, 2002 (ISBN 0415280990_
- Crystal, D. The Cambridge encyclopedia of the English language (2nd ed), Cambridge University Press, 2003 (ISBN 0521530334)
- Halliday, MAK. An introduction to functional grammar (2nd ed), London, Edward Arnold, 1994 (ISBN 0340557826)
- McArthur, T (ed). The Oxford Companion to the English Language, Oxford University Press, 1992 (ISBN 019214183X)
- Robinson, Orrin, "Old English and Its Closest Relatives", Stanford Univ Press, 1992 (ISBN 0-8047-2221-8) English language Category:Languages of Fiji Category:Languages of Guam Category:Languages of Hong Kong Category:Languages of Singapore Category:Languages of the Philippines Category:Languages of the United Kingdom Category:Languages of the United States Category:Languages of Canada Category:Languages of New Zealand Category:Languages of India als:Englische Sprache ko:영어 ms:Bahasa Inggeris zh-min-nan:Eng-gí ja:英語 nb:Engelsk språk simple:English language th:ภาษาอังกฤษ

Pontoon

: For the card game, see Pontoon (cards). Pontoon (cards) A pontoon is a buoyant device, either of solid lightweight material or constructed as a watertight chamber, used to support objects above or below water. Pontoons may be simply constructed from closed cylinders such as pipes or barrels or fabricated as boxes from metal or concrete. These may be used to support a simple platform, creating a raft. A raft supporting a house-like structure is one form of houseboat. Pontoons may be used to support docks or floating bridges. In the case of a dock the entire device is sometimes called a pontoon. Pontoons of sophisticated construction and shape are used to support aircraft so they may be operated from water. Such pontoons may also contain landing gear so that the aircraft may operate on both land and water. Such aircraft are called amphibious floatplanes. Floatplanes are distinct from flying boats in which the aircraft fuselage forms a watertight hull. Pontoons are useful in the salvage of sunken vessels. They may be used to support cranes that lift the boat via cables. In other cases they may be sunk and attached to the vessel underwater. The water inside the pontoon is then displaced with compressed air to float the pontoon.

External link


- [http://www.pagat.com/banking/pontoon.html Pontoon]. Category:Ship construction Category:Coastal construction

World War II

, and the use of new, extremely devastating weapons such as the atom bomb. From top going counterclockwise: Allied landing on D-Day 1944, the Nuremberg Rally 1936, the Nagasaki atom bomb 1945, the Soviet flag over the Reichstag in Berlin 1945 and the Gate of Auschwitz.]] World War II, also known as the Second World War, was a mid-20th Century conflict that engulfed much of the globe and is accepted as the largest and deadliest continuous war in human history. It was the first time that a number of newly developed technologies, including nuclear weapons, were used against either military or civilian targets. World War II resulted in the direct or indirect death of anywhere from 50 to 60 million or more people, over 3% of the world population at that time. It is estimated to have cost more money and resources than all other wars combined: about 1 trillion US dollars in 1945 (adjusted for inflation; roughly 10.5 trillion in 2005), not including subsequent reconstruction [http://www.historychannel.com/worldwartwo/?page=triumph5]. The outcomes of the war, including new technology and changes to the world's geopolitical, cultural and economic arrangement, were unprecedented. The conflict began by most Western accounts on September 1 1939 with the German invasion of Poland (the Pacific war is taken to have started on July 7 1937 with the Japanese attack on China) and lasted until mid-1945, involving many of the world's countries. Virtually all countries that participated in World War I were involved in World War II. Britain, France, Australia and New Zealand declared war on Germany on September 3, 1939 and Canada followed on September 10, 1939. The United States entered the conflict in December of 1941 after the Japanese attack on Pearl Harbor.

Summary

Attributed in varying degrees to the Treaty of Versailles, the Great Depression, and the rise in nationalism, racism, fascism, National socialism, Japanese imperialism, and militarism, the causes of the war are a matter of debate. The war was fought between the Axis Powers and the Allies. The Axis initially consisted of an alliance between Germany and Italy, which later expanded to include Japan and Eastern European countries such as Romania and Bulgaria. Some of the nations that Germany conquered sent military forces, particularly to the Eastern front. Among the expeditionary forces that joined Germany were forces from Vichy France, The Netherlands, Belgium, Spain (though Spain was itself a neutral country) and armies of Russians and Ukrainians under the command of the general Andrey Vlasov. The Allies were initially the United Kingdom, including the Commonwealth, France and Poland, later joined by the USSR, the United States of America and China. Fighting occurred across the Atlantic Ocean, in Western and Eastern Europe, in the Mediterranean Sea, Africa, the Middle East, in the Pacific and South East Asia, and it continued in China. In Europe, the war ended with the surrender of Germany on 8 May 1945 (V-E and Victory Days), but continued in Asia until Japan surrendered on 15 August 1945 (V-J Day). At least 50 million people died as a result of the war. This figure includes acts of genocide such as the Holocaust and General Ishii Shiro's Unit 731 experiments in Pingfan, incredibly bloody battles in Europe and the Pacific Ocean, and massive bombings of cities, including the atomic bombings of Hiroshima and Nagasaki in Japan and the firebombing of Dresden (and even worse but less known) of Pforzheim in Germany. Few areas of the world were unaffected; the war involved the "home front" and bombing of civilians to a new degree. Atomic weapons, jet aircraft, rockets and radar, the blitzkrieg, or "lightning war", the massive use of tanks, submarines, torpedo bombers and destroyer/tanker formations, are only a few of many wartime inventions and new tactics that changed the face of the conflict. Post–World War II Europe was partitioned into Western and Soviet spheres of influence, the former undergoing economic reconstruction under the Marshall Plan and the latter becoming satellite states of the Soviet Union. This partition was, however, informal; rather than coming to terms about the spheres of influence, the relationship between the victors steadily deteriorated, and the military lines of demarcation finally became the de facto country boundaries. Western Europe largely aligned as NATO, and Eastern Europe largely as the Warsaw pact countries, alliances which were fundamental to the ensuing Cold War. In Asia, the United States' military occupation of Japan led to Japan's democratisation. China's civil war continued through and after the war, resulting eventually in the establishment of the People's Republic of China. The war sparked a wave of independence for colonies of European powers, who were exhausted from fighting the war. There was a fundamental shift in power from Western Europe to the new superpowers, the United States and the Soviet Union, though there were few actual boundary changes. __TOC__

Causes

People's Republic of China]] Main articles: Causes of World War II, Events preceding World War II in Europe, Events preceding World War II in Asia The causes of World War II are naturally a debated subject, but a common view, particularly among the allies in the early post-war years, ties them to the expansionism of Germany and Japan: Germany had lost wealth, power and status following the First World War and the expansion was to make Germany great again.
- In Germany there was a strong desire to escape the bonds of the World War I Treaty of Versailles, and eventually, Hitler and the Nazis assumed control of the country. They led Germany through a chain of events: rearmament, reoccupation of the Rhineland, a merger with Austria (Anschluss), incorporation of Czechoslovakia and finally the invasion of Poland.
- In Asia, Japan's efforts to become a world power and the rise of militarist leadership (in the 1930s the government in Japan was undermined as militarists rose to power and de facto gained totalitarian control) led to conflicts with first China and later the United States. Japan also sought to secure additional natural resources, such as oil and iron ore, due in part to the lack of natural resources on Japan's own home islands.

Participants

iron ore and Joseph Stalin, during the Yalta Conference in 1945]] Main article: Participants in World War II The belligerents of the Second World War are usually considered to belong to either of the two blocs: the Axis and the Allies. A number of smaller countries participated in the war, though often under occupation or as proxies of one of the large powers. The Axis Powers consisted primarily of Germany, Italy, and Japan, which split the Earth into three spheres of influence under the Tripartite Pact of 1940, and vowed to defend one another against aggression. This replaced the German-Japanese Anti-Comintern Pact of 1936 that Italy had joined in 1937. Spain's fascist government led by Francisco Franco was a great asset in trade to the Axis powers during the war. A number of smaller countries were counted among the Axis powers. Among these were Bulgaria, Romania, Hungary, Slovenia, and arguably Finland. Among the Allied powers, the so-called Big Three were the United Kingdom (from September 3 1939), the Soviet Union (from June 1941) and the United States (from December 1941). China had been at war with Japan since 1937. 1937 On August 23, 1939, just before the war broke out, the USSR and Germany signed the non-aggression Molotov-Ribbentrop Pact, which, among other things, divided Eastern Europe into regions of influence. But Germany violated the pact when it invaded the USSR in 1941. Similarly, the US had the (much older) unilateral Monroe Doctrine, which stated that Europe should not interfere in the Americas and in turn the U.S. would not interfere in European affairs (including wars). But the U.S. entered the war after first Japan and then Germany declared war on it and launched direct attacks on its navy, shipping and other interests. Many other countries, including Australia, Belgium, Brazil, Canada, Denmark, France, Greece, the Netherlands, New Zealand, Norway, the Philippines, Poland, Thailand and Yugoslavia are also considered important Allies, although some of these were conquered and occupied by Axis forces or even officially joined the Axis as a result of coercion. Countries that attempted to remain neutral in the conflict were often viewed with suspicion by the participants, and often pressured to make contributions to the most influential power in their neighbourhood. Sovereignty was often difficult to maintain as many countries that did not directly participate in the conflict nevertheless held vested interests in seeing a particular side prevail. For example, neutral Switzerland was generally considered to be "Allied-friendly", while neutral Spain was considered "Axis-friendly", despite the fact that neither country openly proclaimed any alliances. Such situations allowed neutral countries to become hotbeds of espionage. It is important to note as well, that Sweden's participation in the war was negligable due to specific relations with the German state at the time.

A debated starting date

On which date World War II started is a debated subject; historians do not all agree on which event signified the start of the war. The most common date used is 1 September 1939, marking the German invasion of Poland which resulted in the British and French declarations of war two days later. Other candidates include the Japanese invasion of China on 7 July1937 (the start of the Second Sino-Japanese War) or the entry of Hitler's armies to Prague in March 1939. Some historians argue that the Italian occupation of Ethiopia (The Second Italo-Abyssinian War) which lasted seven months in 1935-1936 was the actual start of World War II. There are some historians that argue the war started on the start of the Manchurian Incident on 18 September 1931.

Chronology 1937-45

Main articles: European Theatre of World War II, Mediterranean Theatre of World War II, Pacific War, End of World War II in Europe

1937: Second Sino-Japanese War

On 7 July 1937, Japan, after occupying northeastern China as Manchuria in 1931, launched another attack against China near Beijing (see Marco Polo Bridge Incident). Rather than retreating swiftly as in engagements with the Japanese before, the Chinese government declared war on Japan, marking the official start of the Second Sino-Japanese War, which would soon become part of the World War. In December 1937, the capital, Nanking (now Nanjing), fell and the Chinese government moved its seat to Chongqing for the rest of the war. Surprised by the unanticipated level of resistance from China, the Japanese forces committed brutal atrocities against civilians and POWs when Nanking was occupied (see Nanjing Massacre), killing up to 200,000 civilians within a month. In Europe, the peace was uneasy, with Germany annexing Austria and Czechoslovakia, and taking apparent aim at Poland.

1939: War breaks out in Europe

Poland]] Main articles: Polish September Campaign, Phony War War broke out in Poland on 1 September 1939, with the German invasion of Poland. France and the United Kingdom honoured their defensive alliance of March 1939 by declaring war two days later on 3 September. Australia and New Zealand declared war the same day, although through the quirk of the international date line, New Zealand then Australia were the first to declare war on Germany. Canada followed a week later, on 10 September. Only partly mobilised and with troops inadequately equipped with largely outdated weapons (which included large numbers of horse-mounted cavalry), and without the anticipated support of French or British forces, Poland unsurprisingly fared poorly against the Wehrmacht's superior numbers and "blitzkrieg" tactics. In accordance with the Molotov-Ribbentrop Pact, the Soviet Red Army invaded Poland from the east on 17 September. Hours later, the Polish government escaped to Romania. The last Polish Army unit was defeated on 6 October. As Poland fell, the British and French were either caught unaware of German intentions or had not allowed themselves to believe that Germany would invade Poland. Germany paused to regroup during a period that would be termed "the Phony War", or the "Sitzkrieg", which lasted until May 1940. Polish forces continued to fight the Axis powers after their country fell. A prominent example was the assistance of Polish pilots during the Battle of Britain. The Soviet Union, due to its treaty relationship with Nazi Germany, did not fight the fascists: Stalin was happy to have those he felt were his natural and true enemies—the capitalist West and Nazi Germany—fight each other. Indeed, the Soviets had their partisans in the U.S., working alongside Nazi sympathisers, advocate that the U.S. remain neutral in the war, a position that the majority of Americans, reluctant to join in what they saw as "someone else's war," welcomed. Battle of Britain There were isolated engagements during the "Phony War" or "Sitzkrieg" period, including the sinking of HMS Royal Oak in the anchorage at Scapa Flow and Luftwaffe bombings of the naval bases at Rosyth and Scapa Flow. The Kriegsmarine pocket battleship Admiral Graf Spee was sunk in South America after the battle of the River Plate. The Tripartite Pact was signed between Germany, Italy, and Japan on 27 September, 1940, formalising their alignment as the "Axis Powers". The Soviet Union invaded Finland on 30 November 1939, beginning the Winter War, which lasted until March 1940 with Finland ceding territory to the Soviet Union.

1940: The war spreads

Winter War Main Articles: Norwegian Campaign, Battle of France, Battle of Britain, North African Campaign, Balkans Campaign Europe: Germany invaded Denmark and Norway on 9 April 1940, in Operation Weserübung, ostensibly to counter the threat of an Allied invasion from the region. Heavy fighting ensued on land and at sea in Norway. British, French and Polish forces landed to support the Norwegians at Namsos, Åndalsnes and Narvik, with most success at the latter. By late June, all Allied forces had been evacuated, and the Norwegian Army surrendered. France, Belgium, the Netherlands and Luxembourg were invaded on 10 May, ending the Phony War and beginning the Battle of France. The Allies had hoped to establish a static continuous front and were ill-prepared for the German Blitzkrieg tactics. In the first phase of the invasion, Operation Yellow, the Wehrmacht's Panzergruppe von Kleist bypassed the Maginot Line and split the Allies in two by driving to the English Channel. Belgium, Luxembourg, and the Netherlands fell quickly against the attack of Army Group B, and the British Expeditionary Force, trapped in the north, was evacuated at Dunkirk in Operation Dynamo. German forces then invaded France itself, in Operation Red, advancing behind the Maginot Line and near the coast. While some units from the French army were still fighting, a number of top politicians and military leaders decided that it would be better to surrender given the situation; France signed an armistice with Germany on June 22 1940, leading to the establishment of the Vichy France puppet government in the unoccupied part of France. In June 1940 the Soviet Union occupied Latvia, Lithuania and Estonia, and annexed Bessarabia and Northern Bukovina from Romania. Not having secured a rapid peace with the United Kingdom, Germany began preparations to invade with the Battle of Britain. Fighter aircraft fought overhead for months as the Luftwaffe and Royal Air Force fought for control of Britain's skies. The Luftwaffe initially targeted RAF Fighter Command but turned to terror bombing London. The Luftwaffe was not successful, and Operation Sealion, the proposed invasion of the British Isles, was abandoned. Similar efforts were made, though at sea, in the Battle of the Atlantic. In a long-running campaign, German U-Boats attempted to deprive the British Isles of necessary Lend Lease cargo from the United States. The U-Boats reduced shipments considerably; however, the United Kingdom refused to seek peace, with Prime Minister Winston Churchill stating that "We shall never surrender". President Roosevelt announced a shift in the American stance from neutrality to "non-belligerency". The Mediterranean: Italy invaded Greece on 28 October 1940, from bases in Albania. Although outnumbered, Greek forces successfully repelled the Italian attacks and launched a full-scale counter-attack deep into Albania. By mid-December they had liberated one-fourth of Albania. The North African Campaign began in 1940; Italian forces in Libya attacked British forces in Egypt. The aim was to make Egypt an Italian possession, especially the vital Suez Canal. British, Indian and Australian forces counter-attacked (see Operation Compass), but this offensive stopped in 1941 when much of the Commonwealth forces were transferred to Greece to defend it from German attack. However, German forces (known later as the Afrika Korps) under General Erwin Rommel landed in Libya and renewed the assault on Egypt. Italian troops invaded and captured British Somaliland in August 1940. On the other hand, the Italian declaration of war challenged the British supremacy of this sea, a supremacy hinged on Gibraltar, Malta and Alexandria. While Gibraltar was never under direct attack, Alexandria and to a deadlier degree Malta were hit repetitively by Axis attacks, the thrusts towards the Suez Canal for the former, and the 1940/42 Blitz for the latter, which made the island of Malta the most heavily bombed place on earth. Asia: In 1940, Japan occupied French Indochina (Vietnam) upon agreement with the Vichy Government, despite local Free French, and joined Axis powers Germany and Italy. These actions intensified Japan's conflict with the United States and the United Kingdom, which reacted with an oil boycott.

1941: The war becomes global

Main articles: Eastern Front, Continuation War, Attack on Pearl Harbor Europe: Attack on Pearl Harbor Yugoslavia's government succumbed to the pressure of Italy and Germany and signed the Tripartite Treaty on 25 March 1941. This was followed by anti-Axis demonstrations in the country and a coup which overthrew the government and replaced it with a pro-Allied one on 27 March 1941. Hitler's forces then invaded Greece and Yugoslavia on 6 April 1941. Hitler reluctantly sent forces to assist Mussolini's forces in their attempt to capture Greece, principally to prevent a British build-up on Germany's strategic southern flank. With these new troops the Axis succeeded in driving the Greek forces back. British troops were diverted from North Africa to assist with the defence but failed to prevent Greece's capture. On 20 May 1941, the Battle of Crete began when elite German paratroopers and glider-borne mountain troops and some 1300 aeroplanes launched a massive airborne invasion of the Greek island of Crete. Crete was defended by an group of about 43,000 Greek, New Zealand, Australian and British troops, not all of them fully equipped. The Germans attacked the island simultaneously on the three airfields. Their invasion on two of the airfields failed, but they successfully captured one, which allowed them to reinforce their position by landing reinforcements. After a week it was decided that so many German troops had been flown in that there was no way to defeat them, and about 17,000 Commonwealth soldiers were evacuated. However, over 10,000 Greek and 500 Commonwealth troops remained at large and caused problems for the German occupiers. The Germans may have suffered well over 15,000 casualties. So heavy were the losses that Hiler decided never to launch an airborne invasion again. General Kurt Student would later say, "Crete was the grave of the German parachutists". The Allies, on the other hand, came to the conclusion that every major invasion should be supported by paratroopers. Operation Barbarossa, the German invasion of the Soviet Union, the largest invasion in history, commenced on 22 June 1941. The "Great Patriotic War" (Russian: Великая Отечественная Война, Velikaya Otechestvennaya Voyna) had begun with surprise attacks by German panzer armies, which encircled and destroyed much of the Soviet's western military, capturing or killing hundreds of thousands of men. Soviet forces came to fight a war of scorched earth, withdrawing into the steppe of Russia to acquire time and stretch the German army. Industries were dismantled and withdrawn to the Ural mountains for reassembly. German armies pursued a three-pronged advance against Leningrad (modern-day St Petersburg), Moscow, and the Caucasus. Having pushed to occupy Moscow before winter, German forces were delayed into the Soviet Winter. Soviet counter-attacks defeated them within sight of Moscow's spires, and a rout was only narrowly avoided. Some historians identify this as the "turning point" in the Allies' war against Germany; others identify the capitulation of the German Sixth Army outside Stalingrad (modern-day Volgograd) in 1943. The Continuation War between Finland and the Soviet Union began with Soviet air attacks shortly after the beginning of Operation Barbarossa, on 25 June, and ended with an armistice in 1944. The Soviet Union was joined in the war by the United Kingdom but not by the United States. The Mediterranean again: In June 1941, Allied forces invaded Syria and Lebanon, capturing Damascus on 17 June (see Syria-Lebanon campaign). Meanwhile, Rommel's forces advanced rapidly eastward, laying siege to the vital seaport of