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Thursday, September 11, 2014

New Zealand

New Zealand

From Wikipedia, the free encyclopedia

New Zealand
Aotearoa
Flag Coat of arms
Anthem: 
Location of New Zealand within the Realm of New Zealand
Location of New Zealand within the Realm of New Zealand
Capital Wellington
41°17′S 174°27′E
Largest city Auckland
Official languages
Ethnic groups (2013)
Demonym
Government Unitary parliamentary constitutional monarchy
 -  Monarch Elizabeth II
 -  Governor-General Jerry Mateparae
 -  Prime Minister John Key
Legislature Parliament
(House of Representatives)
Independence from the United Kingdom
 -  Self-government 17 January 1853 
 -  Dominion 26 September 1907 
 -  Statute of Westminster Adoption Act 25 November 1947 
 -  Current constitution 13 December 1986 
Area
 -  Total 268,021 km2 (75th)
103,483 sq mi
 -  Water (%) 1.6[n 3]
Population
 -  June 2014 estimate 4,537,081[6] (123rd)
 -  2013 census 4,242,048[7]
 -  Density 16.5/km2 (205th)
42.7/sq mi
GDP (PPP) 2013 estimate
 -  Total $122.193 billion[8]
 -  Per capita $30,493[8]
GDP (nominal) 2013 estimate
 -  Total $181.3 billion[8]
 -  Per capita $40,481[8]
Gini (1997) 36.2[9]
medium
HDI (2013) Steady 0.910[10]
very high · 7th
Currency New Zealand dollar (NZD)
Time zone NZST[n 4] (UTC+12)
 -  Summer (DST) NZDT (UTC+13)

(Sep to Apr)
Date format dd/mm/yyyy
Drives on the left
Calling code +64
ISO 3166 code NZ
Internet TLD .nz

New Zealand (/nj ˈzlənd/; Māori: Aotearoa [aɔˈtɛaɾɔa]) is an island country in the southwestern Pacific Ocean. The country geographically comprises two main landmasses – that of the North Island, or Te Ika-a-Māui, and the South Island, or Te Waipounamu – and numerous smaller islands. New Zealand is situated some 1,500 kilometres (900 mi) east of Australia across the Tasman Sea and roughly 1,000 kilometres (600 mi) south of the Pacific island areas of New Caledonia, Fiji, and Tonga. Because of its remoteness, it was one of the last lands to be settled by humans. During its long isolation, New Zealand developed a distinctive biodiversity of animal, fungal and plant life. The country's varied topography and its sharp mountain peaks, such as the Southern Alps, owe much to the tectonic uplift of land and volcanic eruptions. New Zealand's capital city is Wellington, while its most populous city is Auckland.

Polynesians settled New Zealand in 1250–1300 CE and developed a distinctive Māori culture. Abel Tasman, a Dutch explorer, was the first European to sight New Zealand in 1642 CE.[11] In 1840, the British Crown and Māori signed the Treaty of Waitangi, making New Zealand a British colony. Today, the majority of New Zealand's population of 4.5 million is of European descent; the indigenous Māori are the largest minority, followed by Asians and Pacific Islanders. Reflecting this, New Zealand's culture is mainly derived from Māori and early British settlers, with recent broadening arising from increased immigration. The official languages are English, Māori and New Zealand Sign Language, with English predominant. The country's economy was historically dominated by the export of wool, but exports of dairy products, meat, and wine, along with tourism, are more significant today.

Nationally, legislative authority is vested in an elected, unicameral Parliament, while executive political power is exercised by the Cabinet, led by the Prime Minister, who is currently John Key. Queen Elizabeth II is the country's head of state and is represented by a Governor-General. In addition, New Zealand is organised into 11 regional councils and 67 territorial authorities for local government purposes. The Realm of New Zealand also includes Tokelau (a dependent territory); the Cook Islands and Niue (self-governing states in free association with New Zealand); and the Ross Dependency, which is New Zealand's territorial claim in Antarctica. New Zealand is a member of the United Nations, Commonwealth of Nations, ANZUS, Organisation for Economic Co-operation and Development, Pacific Islands Forum and Asia-Pacific Economic Cooperation.

Etymology

brown square paper with Dutch writing and a thick red, curved line
Detail from a 1657 map showing the western coastline of "Nova Zeelandia"

Dutch explorer Abel Tasman sighted New Zealand in 1642 and called it Staten Landt, supposing it was connected to a landmass of the same name at the southern tip of South America.[12] In 1645 Dutch cartographers renamed the land Nova Zeelandia after the Dutch province of Zeeland.[13][14] British explorer James Cook subsequently anglicised the name to New Zealand.[n 5]

Aotearoa (often translated as "land of the long white cloud")[15] is the current Māori name for New Zealand. It is unknown whether Māori had a name for the whole country before the arrival of Europeans, with Aotearoa originally referring to just the North Island.[16] Māori had several traditional names for the two main islands, including Te Ika-a-Māui (the fish of Māui) for the North Island and Te Waipounamu (the waters of greenstone) or Te Waka o Aoraki (the canoe of Aoraki) for the South Island.[17] Early European maps labelled the islands North (North Island), Middle (South Island) and South (Stewart Island / Rakiura).[18] In 1830, maps began to use North and South to distinguish the two largest islands and by 1907 this was the accepted norm.[19] The New Zealand Geographic Board discovered in 2009 that the names of the North Island and South Island had never been formalised, and names and alternative names were formalised in 2013. This set the names as North Island or Te Ika-a-Māui, and South Island or Te Waipounamu.[20] Note that for each island, either its English or Māori name can be used, or both can be used together.

History

One set of arrows point from Taiwan to Melanesia to Fiji/Samoa and then to the Marquesas Islands. The population then spread, some going south to New Zealand and others going north to Hawai'i. A second set start in southern Asia and end in Melanesia.
The Māori people are most likely descended from people who emigrated from Taiwan to Melanesia and then travelled east through to the Society Islands. After a pause of 70 to 265 years, a new wave of exploration led to the discovery and settlement of New Zealand.[21]

New Zealand was one of the last major landmasses settled by humans. Radiocarbon dating, evidence of deforestation[22] and mitochondrial DNA variability within Māori populations[23] suggest New Zealand was first settled by Eastern Polynesians between 1250 and 1300,[17][24] concluding a long series of voyages through the southern Pacific islands.[25] Over the centuries that followed these settlers developed a distinct culture now known as Māori. The population was divided into iwi (tribes) and hapū (subtribes) who would sometimes cooperate, sometimes compete and sometimes fight with each other. At some point a group of Māori migrated to the Chatham Islands (which they named Rēkohu) where they developed their distinct Moriori culture.[26][27] The Moriori population was decimated between 1835 and 1862, largely because of Taranaki Māori invasion and enslavement in the 1830s, although European diseases also contributed. In 1862 only 101 survived and the last known full-blooded Moriori died in 1933.[28]

The first Europeans known to have reached New Zealand were Dutch explorer Abel Tasman and his crew in 1642.[29] In a hostile encounter, four crew members were killed and at least one Māori was hit by canister shot.[30] Europeans did not revisit New Zealand until 1769 when British explorer James Cook mapped almost the entire coastline.[29] Following Cook, New Zealand was visited by numerous European and North American whaling, sealing and trading ships. They traded food, metal tools, weapons and other goods for timber, food, artifacts and water.[31] The introduction of the potato and the musket transformed Māori agriculture and warfare. Potatoes provided a reliable food surplus, which enabled longer and more sustained military campaigns.[32] The resulting inter-tribal Musket Wars encompassed over 600 battles between 1801 and 1840, killing 30,000–40,000 Māori.[33] From the early 19th century, Christian missionaries began to settle New Zealand, eventually converting most of the Māori population.[34] The Māori population declined to around 40 percent of its pre-contact level during the 19th century; introduced diseases were the major factor.[35]
A torn sheet of paper
The Waitangi sheet from the Treaty of Waitangi

In 1788 Arthur Phillip assumed the position of Governor of New South Wales and claimed New Zealand as part of New South Wales.[citation needed] The British Government appointed James Busby as British Resident to New Zealand in 1832[36] and in 1835, following an announcement of impending French settlement by Charles de Thierry, the nebulous United Tribes of New Zealand sent a Declaration of the Independence to King William IV of the United Kingdom asking for protection.[36] Ongoing unrest and the dubious legal standing of the Declaration of Independence prompted the Colonial Office to send Captain William Hobson to claim sovereignty for the British Crown and negotiate a treaty with the Māori.[37] The Treaty of Waitangi was first signed in the Bay of Islands on 6 February 1840.[38] In response to the commercially run New Zealand Company's attempts to establish an independent settlement in Wellington[39] and French settlers "purchasing" land in Akaroa,[40] Hobson declared British sovereignty over all of New Zealand on 21 May 1840, even though copies of the Treaty were still circulating.[41] With the signing of the Treaty and declaration of sovereignty the number of immigrants, particularly from the United Kingdom, began to increase.[42]

New Zealand, originally part of the colony of New South Wales, became a separate Colony of New Zealand on 1 July 1841.[43] The colony gained a representative government in 1852 and the 1st New Zealand Parliament met in 1854.[44] In 1856 the colony effectively became self-governing, gaining responsibility over all domestic matters other than native policy. (Control over native policy was granted in the mid-1860s.)[44] Following concerns that the South Island might form a separate colony, premier Alfred Domett moved a resolution to transfer the capital from Auckland to a locality near the Cook Strait.[45] Wellington was chosen for its harbour and central location, with parliament officially sitting there for the first time in 1865. As immigrant numbers increased, conflicts over land led to the New Zealand Wars of the 1860s and 1870s, resulting in the loss and confiscation of much Māori land.[46] In 1893 the country became the first nation in the world to grant all women the right to vote[47] and in 1894 pioneered the adoption of compulsory arbitration between employers and unions.[48]

In 1907, at the request of the New Zealand Parliament, King Edward VII proclaimed New Zealand a dominion within the British Empire, reflecting its self-governing status. Accordingly, the title "Dominion of New Zealand" dates from 1907.[49][50]

In 1947 the country adopted the Statute of Westminster, confirming that the British parliament could no longer legislate for New Zealand without the consent of New Zealand.[44] New Zealand was involved in world affairs, fighting alongside the British Empire in the First and Second World Wars[51] and suffering through the Great Depression.[52] The depression led to the election of the first Labour government and the establishment of a comprehensive welfare state and a protectionist economy.[53] New Zealand experienced increasing prosperity following World War II[54] and Māori began to leave their traditional rural life and move to the cities in search of work.[55] A Māori protest movement developed, which criticised Eurocentrism and worked for greater recognition of Māori culture and the Treaty of Waitangi.[56] In 1975, a Waitangi Tribunal was set up to investigate alleged breaches of the Treaty, and it was enabled to investigate historic grievances in 1985.[38] The government has negotiated settlements of these grievances with many iwi, although Māori claims to the foreshore and seabed have proved controversial in the 2000s.

Politics

Government


New Zealand is a constitutional monarchy with a parliamentary democracy,[57] although its constitution is not codified.[58] Elizabeth II is the Queen of New Zealand and the head of state.[59] The Queen is represented by the Governor-General, whom she appoints on the advice of the Prime Minister.[60][61] The Governor-General can exercise the Crown's prerogative powers, such as reviewing cases of injustice and making appointments of ministers, ambassadors and other key public officials,[62] and in rare situations, the reserve powers (e.g. the power to dissolve Parliament or refuse the Royal Assent of a bill into law).[63] The powers of the Queen and the Governor-General are limited by constitutional constraints and they cannot normally be exercised without the advice of Cabinet.[63][64]
 The Queen of New Zealand and her vice-regal representative, the Governor-General

The New Zealand Parliament holds legislative power and consists of the Queen and the House of Representatives.[64] It also included an upper house, the Legislative Council, until this was abolished in 1950.[64] The supremacy of Parliament, over the Crown and other government institutions, was established in England by the Bill of Rights 1689 and has been ratified as law in New Zealand.[64] The House of Representatives is democratically elected and a Government is formed from the party or coalition with the majority of seats.[64] If no majority is formed a minority government can be formed if support from other parties during confidence and supply votes is assured. The Governor-General appoints ministers under advice from the Prime Minister, who is by convention the Parliamentary leader of the governing party or coalition.[65] Cabinet, formed by ministers and led by the Prime Minister, is the highest policy-making body in government and responsible for deciding significant government actions.[66] By convention, members of cabinet are bound by collective responsibility to decisions made by cabinet.[67]

Judges and judicial officers are appointed non-politically and under strict rules regarding tenure to help maintain constitutional independence from the government.[58] This theoretically allows the judiciary to interpret the law based solely on the legislation enacted by Parliament without other influences on their decisions.[68] The Privy Council in London was the country's final court of appeal until 2004, when it was replaced with the newly established Supreme Court of New Zealand. The judiciary, headed by the Chief Justice,[69] includes the Court of Appeal, the High Court, and subordinate courts.[58]
A block of buildings fronted by a grassy lawn
New Zealand government "Beehive" and the Parliament Buildings (right), in Wellington

Almost all parliamentary general elections between 1853 and 1993 were held under the first-past-the-post voting system.[70] The elections since 1930 have been dominated by two political parties, National and Labour.[70] Since the 1996 election, a form of proportional representation called Mixed Member Proportional (MMP) has been used.[58] Under the MMP system each person has two votes; one is for electoral seats (including some reserved for Māori),[71] and the other is for a party. Since the 2005 election, there have been 70 electorate seats (which includes, since the 1996 election, 7 Māori electorates), and the remaining fifty seats are assigned so that representation in parliament reflects the party vote, although a party has to win one electoral seat or 5 percent of the total party vote before it is eligible for these seats.[72] Between March 2005 and August 2006 New Zealand became the only country in the world in which all the highest offices in the land (Head of State, Governor-General, Prime Minister, Speaker and Chief Justice) were occupied simultaneously by women.[73]

New Zealand is identified as one of the world's most stable and well-governed nations.[74] As of 2011, the country was ranked fifth in the strength of its democratic institutions[75] and first in government transparency and lack of corruption.[76] New Zealand has a high level of civic participation, with 79% voter turnout during the most recent elections, compared to an OECD average of 72%. Furthermore, 67% of New Zealanders say they trust their political institutions, far higher than the OECD average of 56%.[77]

Foreign relations and the military

Anzac Day service at the National War Memorial

Early colonial New Zealand allowed the British Government to determine external trade and be responsible for foreign policy.[78] The 1923 and 1926 Imperial Conferences decided that New Zealand should be allowed to negotiate their own political treaties and the first commercial treaty was ratified in 1928 with Japan. On 3 September 1939 New Zealand allied itself with Britain and declared war on Germany with Prime Minister Michael Savage proclaiming, "Where she goes, we go; where she stands, we stand."[79]
A squad of men kneel in the desert sand while performing a war dance
Māori Battalion haka in Egypt, 1941

In 1951 the United Kingdom became increasingly focused on its European interests,[80] while New Zealand joined Australia and the United States in the ANZUS security treaty.[81] The influence of the United States on New Zealand weakened following protests over the Vietnam War,[82] the refusal of the United States to admonish France after the sinking of the Rainbow Warrior,[83] disagreements over environmental and agricultural trade issues and New Zealand's nuclear-free policy.[84][85] Despite the USA's suspension of ANZUS obligations the treaty remained in effect between New Zealand and Australia, whose foreign policy has followed a similar historical trend.[86] Close political contact is maintained between the two countries, with free trade agreements and travel arrangements that allow citizens to visit, live and work in both countries without restrictions.[87] In 2013, there are about 650,000 New Zealand citizens living in Australia, which is about 15 percent of the population of New Zealand.[88] 65,000 Australians live in New Zealand.[87]

New Zealand has a strong presence among the Pacific Island countries. A large proportion of New Zealand's aid goes to these countries and many Pacific people migrate to New Zealand for employment.[89] Permanent migration is regulated under the 1970 Samoan Quota Scheme and the 2002 Pacific Access Category, which allow up to 1,100 Samoan nationals and up to 750 other Pacific Islanders respectively to become permanent New Zealand residents each year. A seasonal workers scheme for temporary migration was introduced in 2007 and in 2009 about 8,000 Pacific Islanders were employed under it.[90] New Zealand is involved in the Pacific Islands Forum, Asia-Pacific Economic Cooperation and the Association of Southeast Asian Nations Regional Forum (including the East Asia Summit).[87] New Zealand is also a member of the United Nations,[91] the Commonwealth of Nations,[92] the Organisation for Economic Co-operation and Development[93] and the Five Power Defence Arrangements.[94]
Infantry from the 2nd Battalion, Auckland Regiment in the Battle of the Somme, September 1916

The New Zealand Defence Force has three branches: the Royal New Zealand Navy, the New Zealand Army and the Royal New Zealand Air Force.[95] New Zealand's national defence needs are modest because of the unlikelihood of direct attack,[96] although it does have a global presence. The country fought in both world wars, with notable campaigns in Gallipoli, Crete,[97] El Alamein[98] and Cassino.[99] The Gallipoli campaign played an important part in fostering New Zealand's national identity[100][101] and strengthened the ANZAC tradition it shares with Australia.[102] According to Mary Edmond-Paul, "World War I had left scars on New Zealand society, with nearly 18,500 in total dying as a result of the war, more than 41,000 wounded, and others affected emotionally, out of an overseas fighting force of about 103,000 and a population of just over a million."[103] New Zealand also played key parts in the naval Battle of the River Plate[104] and the Battle of Britain air campaign.[105][106] During World War II, the United States had more than 400,000 American military personnel stationed in New Zealand.[107]

In addition to Vietnam and the two world wars, New Zealand fought in the Korean War, the Second Boer War,[108] the Malayan Emergency,[109] the Gulf War and the Afghanistan War. It has contributed forces to several regional and global peacekeeping missions, such as those in Cyprus, Somalia, Bosnia and Herzegovina, the Sinai, Angola, Cambodia, the Iran–Iraq border, Bougainville, East Timor, and the Solomon Islands.[110] New Zealand also sent a unit of army engineers to help rebuild Iraqi infrastructure for one year during the Iraq War.

New Zealand ranks 8th in the Center for Global Development's 2012 Commitment to Development Index, which ranks the world's most developed countries on their dedication to policies that benefit poorer nations.[111] New Zealand is considered the second most peaceful country in the world according to the 2012 Global Peace Index.[112]

Local government and external territories


The early European settlers divided New Zealand into provinces, which had a degree of autonomy.[113] Because of financial pressures and the desire to consolidate railways, education, land sales and other policies, government was centralised and the provinces were abolished in 1876.[114] As a result, New Zealand now has no separately represented subnational entities. The provinces are remembered in regional public holidays[115] and sporting rivalries.[116]

Since 1876, various councils have administered local areas under legislation determined by the central government.[113][117] In 1989, the government reorganised local government into the current two-tier structure of regional councils and territorial authorities.[118] The 249 municipalities[118] that existed in 1975 have now been consolidated into 67 territorial authorities and 11 regional councils.[119] The regional councils' role is to regulate "the natural environment with particular emphasis on resource management",[118] while territorial authorities are responsible for sewage, water, local roads, building consents and other local matters.[120] Five of the territorial councils are unitary authorities and also act as regional councils.[121] The territorial authorities consist of 13 city councils, 53 district councils, and the Chatham Islands Council. While officially the Chatham Islands Council is not a unitary authority, it undertakes many functions of a regional council.[122]

New Zealand is one of 16 realms within the Commonwealth.[123][124] The Realm of New Zealand is the territory over which the Queen of New Zealand is sovereign and comprises New Zealand, Tokelau, the Ross Dependency, the Cook Islands and Niue.[124] The Cook Islands and Niue are self-governing states in free association with New Zealand.[125][126] The New Zealand Parliament cannot pass legislation for these countries, but with their consent can act on behalf of them in foreign affairs and defence. Tokelau is a non-self-governing territory that uses the New Zealand flag and anthem, but is administered by a council of three elders (one from each Tokelauan atoll).[127][128] The Ross Dependency is New Zealand's territorial claim in Antarctica, where it operates the Scott Base research facility.[129] New Zealand citizenship law treats all parts of the realm equally, so most people born in New Zealand, the Cook Islands, Niue, Tokelau and the Ross Dependency before 2006 are New Zealand citizens. Further conditions apply for those born from 2006 onwards.[130]

Geography

Photo of New Zealand from space.
The snow-capped Southern Alps dominate the South Island, while the North Island's Northland Peninsula stretches towards the subtropics.
Aoraki / Mount Cook viewed from the road to Mount Cook Village, located in the Southern Alps. Much of New Zealand's South Island landscape is mountainous.
Photo showing clear blue water, a photographer or tourist capturing the water on a golden sanded beach and forested hills
Torrent Bay at Abel Tasman National Park in the South Island

New Zealand is located near the centre of the water hemisphere and is made up of two main islands and a number of smaller islands. The two main islands (the North Island, or Te Ika-a-Māui, and the South Island, or Te Waipounamu) are separated by the Cook Strait, 22 kilometres (14 mi) wide at its narrowest point.[131] Besides the North and South Islands, the five largest inhabited islands are Stewart Island, the Chatham Islands, Great Barrier Island (in the Hauraki Gulf),[132] d'Urville Island (in the Marlborough Sounds)[133] and Waiheke Island (about 22 km (14 mi) from central Auckland).[134] The country's islands lie between latitudes 29° and 53°S, and longitudes 165° and 176°E.

New Zealand is long and narrow (over 1,600 kilometres (990 mi) along its north-north-east axis with a maximum width of 400 kilometres (250 mi)),[135] with about 15,000 km (9,300 mi) of coastline[136] and a total land area of 268,000 square kilometres (103,500 sq mi)[137] Because of its far-flung outlying islands and long coastline, the country has extensive marine resources. Its Exclusive Economic Zone, one of the largest in the world, covering more than 15 times its land area.[138]

The South Island is the largest landmass of New Zealand, and is divided along its length by the Southern Alps.[139] There are 18 peaks over 3,000 metres (9,800 ft), the highest of which is Aoraki / Mount Cook 3,754 metres (12,316 ft).[140] Fiordland's steep mountains and deep fiords record the extensive ice age glaciation of this south-western corner of the South Island.[141] The North Island is less mountainous but is marked by volcanism.[142] The highly active Taupo Volcanic Zone has formed a large volcanic plateau, punctuated by the North Island's highest mountain, Mount Ruapehu (2,797 metres (9,177 ft)). The plateau also hosts the country's largest lake, Lake Taupo,[143] nestled in the caldera of one of the world's most active supervolcanoes.[144]

The country owes its varied topography, and perhaps even its emergence above the waves, to the dynamic boundary it straddles between the Pacific and Indo-Australian Plates.[145] New Zealand is part of Zealandia, a microcontinent nearly half the size of Australia that gradually submerged after breaking away from the Gondwanan supercontinent.[146] About 25 million years ago, a shift in plate tectonic movements began to contort and crumple the region. This is now most evident in the Southern Alps, formed by compression of the crust beside the Alpine Fault. Elsewhere the plate boundary involves the subduction of one plate under the other, producing the Puysegur Trench to the south, the Hikurangi Trench east of the North Island, and the Kermadec and Tonga Trenches[147] further north.[145]

Climate

New Zealand has a mild and temperate maritime climate (Köppen: Cfb) with mean annual temperatures ranging from 10 °C (50 °F) in the south to 16 °C (61 °F) in the north.[148] Historical maxima and minima are 42.4 °C (108.32 °F) in Rangiora, Canterbury and −25.6 °C (−14.08 °F) in Ranfurly, Otago.[149] Conditions vary sharply across regions from extremely wet on the West Coast of the South Island to almost semi-arid in Central Otago and the Mackenzie Basin of inland Canterbury and subtropical in Northland.[150] Of the seven largest cities, Christchurch is the driest, receiving on average only 640 millimetres (25 in) of rain per year and Auckland the wettest, receiving almost twice that amount.[151] Auckland, Wellington and Christchurch all receive a yearly average of more than 2,000 hours of sunshine. The southern and south-western parts of the South Island have a cooler and cloudier climate, with around 1,400–1,600 hours; the northern and north-eastern parts of the South Island are the sunniest areas of the country and receive about 2,400–2,500 hours.[152] The general snow season is about early June until early October in the South Island. It is less common on the North Island, although it does occur.

Biodiversity

New Zealand's geographic isolation for 80 million years[153] and island biogeography is responsible for the country's unique species of animals, fungi and plants. They have either evolved from Gondwanan wildlife or the few organisms that have managed to reach the shores flying, swimming or being carried across the sea.[154] About 82 percent of New Zealand's indigenous vascular plants are endemic, covering 1,944 species across 65 genera and includes a single endemic family.[155][156] The number of fungi recorded from New Zealand, including lichen-forming species, is not known, nor is the proportion of those fungi which are endemic, but one estimate suggests there are approximately 2300 species of lichen-forming fungi in New Zealand[155] and 40 percent of these are endemic.[157]
The two main types of forest are those dominated by broadleaf trees with emergent podocarps, or by southern beech in cooler climates.[158] The remaining vegetation types consist of grasslands, the majority of which are tussock.[159]

Before the arrival of humans an estimated 80 percent of the land was covered in forest, with only high alpine, wet, infertile and volcanic areas without trees.[160] Massive deforestation occurred after humans arrived, with around half the forest cover lost to fire after Polynesian settlement.[161] Much of the remaining forest fell after European settlement, being logged or cleared to make room for pastoral farming, leaving forest occupying only 23 percent of the land.[162]
Kiwi amongst sticks
The endemic flightless kiwi is a national icon.

The forests were dominated by birds, and the lack of mammalian predators led to some like the kiwi, kakapo and takahē evolving flightlessness.[163] The arrival of humans, associated changes to habitat, and the introduction of rats, ferrets and other mammals led to the extinction of many bird species, including large birds like the moa and Haast's Eagle.[164][165]

Other indigenous animals are represented by reptiles (tuataras, skinks and geckos),[166] frogs, spiders (katipo), insects (weta) and snails.[167][168] Some, such as the wrens and tuatara, are so unique that they have been called living fossils. Three species of bats (one since extinct) were the only sign of native land mammals in New Zealand until the 2006 discovery of bones from a unique, mouse-sized land mammal at least 16 million years old.[169][170] Marine mammals however are abundant, with almost half the world's cetaceans (whales, dolphins, and porpoises) and large numbers of fur seals reported in New Zealand waters.[171] Many seabirds breed in New Zealand, a third of them unique to the country.[172] More penguin species are found in New Zealand than in any other country.[173]

Since human arrival almost half of the country's vertebrate species have become extinct, including at least fifty-one birds, three frogs, three lizards, one freshwater fish, and one bat. Others are endangered or have had their range severely reduced.[164] However, New Zealand conservationists have pioneered several methods to help threatened wildlife recover, including island sanctuaries, pest control, wildlife translocation, fostering, and ecological restoration of islands and other selected areas.[174][175][176][177] According to the 2012 Environmental Performance Index, New Zealand is considered a "strong performer" in environmental protection, ranking 14th out of 132 assessed countries.[178]

Economy

New Zealand has a modern, prosperous and developed market economy with an estimated gross domestic product (GDP) at purchasing power parity (PPP) per capita of roughly US$28,250.[n 6] The currency is the New Zealand dollar, informally known as the "Kiwi dollar"; it also circulates in the Cook Islands (see Cook Islands dollar), Niue, Tokelau, and the Pitcairn Islands.[182] New Zealand was ranked sixth in the 2013 Human Development Index,[183] fourth in the The Heritage Foundation's 2012 Index of Economic Freedom,[184] and 13th in INSEAD's 2012 Global Innovation Index.[185]
Blue water against a backdrop of snow capped mountains
Milford Sound, one of New Zealand's most famous tourist destinations.[186]

Historically, extractive industries have contributed strongly to New Zealand's economy, focussing at different times on sealing, whaling, flax, gold, kauri gum, and native timber.[187] With the development of refrigerated shipping in the 1880s meat and dairy products were exported to Britain, a trade which provided the basis for strong economic growth in New Zealand.[188] High demand for agricultural products from the United Kingdom and the United States helped New Zealanders achieve higher living standards than both Australia and Western Europe in the 1950s and 1960s.[189] In 1973 New Zealand's export market was reduced when the United Kingdom joined the European Community[190] and other compounding factors, such as the 1973 oil and 1979 energy crisis, led to a severe economic depression.[191] Living standards in New Zealand fell behind those of Australia and Western Europe, and by 1982 New Zealand had the lowest per-capita income of all the developed nations surveyed by the World Bank.[192] Since 1984, successive governments engaged in major macroeconomic restructuring (known first as Rogernomics and then Ruthanasia), rapidly transforming New Zealand from a highly protectionist economy to a liberalised free-trade economy.[193][194]

Unemployment peaked above 10 percent in 1991 and 1992,[195] following the 1987 share market crash, but eventually fell to a record low of 3.4 percent in 2007 (ranking fifth from twenty-seven comparable OECD nations).[196] However, the global financial crisis that followed had a major impact on New Zealand, with the GDP shrinking for five consecutive quarters, the longest recession in over thirty years,[197][198] and unemployment rising back to 7 percent in late 2009.[199] At May 2012, the general unemployment rate was around 6.7 percent, while the unemployment rate for youth aged 15 to 21 was 13.6 percent.[200] New Zealand has experienced a series of "brain drains" since the 1970s[201] that still continue today.[202] Nearly one quarter of highly skilled workers live overseas, mostly in Australia and Britain, which is the largest proportion from any developed nation.[203] In recent years, however, a "brain gain" has brought in educated professionals from Europe and lesser developed countries.[204][205]

Trade

New Zealand is heavily dependent on international trade,[206] particularly in agricultural products.[207] Exports account for a high 24 percent of its output,[136] making New Zealand vulnerable to international commodity prices and global economic slowdowns. Its principal export industries are agriculture, horticulture, fishing, forestry and mining, which make up about half of the country's exports.[208] Its major export partners are Australia, United States, Japan, China, and the United Kingdom.[136] On 7 April 2008, New Zealand and China signed the New Zealand–China Free Trade Agreement, the first such agreement China has signed with a developed country.[209][210] The service sector is the largest sector in the economy, followed by manufacturing and construction and then farming and raw material extraction.[136] Tourism plays a significant role in New Zealand's economy, contributing $15.0 billion to New Zealand’s total GDP and supporting 9.6 percent of the total workforce in 2010.[211] International visitors to New Zealand increased by 3.1 percent in the year to October 2010[212] and are expected to increase at a rate of 2.5 percent annually up to 2015.[211]
A Romney ewe with her two lambs
Wool has historically been one of New Zealand's major exports.

Wool was New Zealand’s major agricultural export during the late 19th century.[187] Even as late as the 1960s it made up over a third of all export revenues,[187] but since then its price has steadily dropped relative to other commodities[213] and wool is no longer profitable for many farmers.[214] In contrast dairy farming increased, with the number of dairy cows doubling between 1990 and 2007,[215] to become New Zealand's largest export earner.[216] In the year to June 2009, dairy products accounted for 21 percent ($9.1 billion) of total merchandise exports,[217] and the country's largest company, Fonterra, controls almost one-third of the international dairy trade.[218] Other agricultural exports in 2009 were meat 13.2 percent, wool 6.3 percent, fruit 3.5 percent and fishing 3.3 percent. New Zealand's wine industry has followed a similar trend to dairy, the number of vineyards doubling over the same period,[219] overtaking wool exports for the first time in 2007.[220][221]

Infrastructure

In 2008, oil, gas and coal generated about 69 percent of New Zealand's gross energy supply while 31% was generated from renewable energy, primarily hydroelectric power and geothermal power.[222] New Zealand's transport network includes 93,805 kilometres (58,288 mi) of roads, worth 23 billion dollars,[223] and 4,128 kilometres (2,565 mi) of railway lines.[136] Most major cities and towns are linked by bus services, although the private car is the predominant mode of transport.[224] The railways were privatised in 1993, then re-purchased by the government in 2004 and vested into a state owned enterprise.[225] Railways run the length of the country, although most lines now carry freight rather than passengers.[226] Most international visitors arrive via air[227] and New Zealand has six international airports, but currently only the Auckland and Christchurch airports connect directly with countries other than Australia or Fiji.[228] The New Zealand Post Office had a monopoly over telecommunications until 1989 when Telecom New Zealand was formed, initially as a state-owned enterprise and then privatised in 1990.[229] Telecom still owns the majority of the telecommunications infrastructure, but competition from other providers has increased.[230] The United Nations International Telecommunication Union ranks New Zealand 12th in the development of information and communications infrastructure, having moved up four places between 2008 and 2010.[231]

Demography

Graph with a New Zealand population scale ranging from 0 to almost 7 million on the y axis and the years from 1850 to around 2070 on the x axis. A black line starts at about 100,000 in 1858 and increases steadily to about 4.1 million in 2006. Seven separate red lines then project out from the black line ending in values ranging from roughly 4.5 to 6.5 million in the year 2061; two lines are slightly thicker than the rest.
New Zealand's historical population (black) and projected growth (red)

The population of New Zealand is about 4.5 million.[232] New Zealand is a predominantly urban country, with 72 percent of the population living in 16 main urban areas and 53 percent living in the four largest cities of Auckland, Christchurch, Wellington, and Hamilton.[233] New Zealand cities generally rank highly on international livability measures. For instance, in 2010 Auckland was ranked the world's 4th most liveable city and Wellington the 12th by the Mercer Quality of Life Survey[234]

Life expectancy of a New Zealand in 2012 was 84 years for females, and 80.2 years for males.[235] Life expectancy at birth is forecast to increase from 80 years to 85 years in 2050 and infant mortality is expected to decline.[236] New Zealand's fertility rate of 2.1 is relatively high for a developed country, and natural births account for a significant proportion of population growth. Consequently, the country has a young population compared to most industrialized nations, with 20 percent of New Zealanders being 14 years-old or younger.[136] By 2050 the population is forecast to reach 5.3 million, the median age to rise from 36 years to 43 years and the percentage of people 60 years of age and older to rise from 18 percent to 29 percent.[236] Despite the high life expectancy, mortality from heart disease is higher in New Zealand than it is in various other developed Western countries such as Australia, the United Kingdom and Canada.[237]

Ethnicity and immigration

New Zealanders of European descent

In the 2013 census, 74.0% of New Zealand residents identified ethnically as European, and 14.9% as Māori. Other major ethnic groups include Asian (11.8%) and Pacific peoples (7.4%).[239][n 7] The population has become more diverse in recent decades: in 1961, the census reported that the population of New Zealand was 92 percent European and 7 percent Māori, with Asian and Pacific minorities sharing the remaining 1 percent.[240]

While the demonym for a New Zealand citizen is New Zealander, the informal "Kiwi" is commonly used both internationally[241] and by locals.[242] The Māori loanword Pākehā has been used to refer to New Zealanders of European descent, although others reject this appellation.[243][244] The word Pākehā today is increasingly used to refer to all non-Polynesian New Zealanders.[245]
Lion dancers wearing bright red and yellow costumes
lion dancers perform at the Auckland Lantern Festival.

The Māori were the first people to reach New Zealand, followed by the early European settlers. Following colonisation, immigrants were predominantly from Britain, Ireland and Australia because of restrictive policies similar to the white Australian policies.[246] There was also significant Dutch, Dalmatian,[247] Italian, and German immigration, together with indirect European immigration through Australia, North America, South America and South Africa.[248] Following the Great Depression policies were relaxed and migrant diversity increased. In 2009–10, an annual target of 45,000–50,000 permanent residence approvals was set by the New Zealand Immigration Service — more than one new migrant for every 100 New Zealand residents.[249] Just over 25% of New Zealand's population was born overseas, with the majority (52%) living in the Auckland region. In the late 2000s, Asia ovetook the UK and Ireland as the largest source of overseas migrants; at the 2013 census, 31.6% of overseas-born New Zealand residents were born in Asia (mainly China, India, the Philippines and South Korea), while 26.5% were born in the UK and Ireland. Australia, the Pacific Islands, and South Africa are also significant sources of migrants.[250] The number of fee-paying international students increased sharply in the late 1990s, with more than 20,000 studying in public tertiary institutions in 2002.[251]

Language

English is the predominant language in New Zealand, spoken by 98 percent of the population.[3] New Zealand English is similar to Australian English and many speakers from the Northern Hemisphere are unable to tell the accents apart.[252] The most prominent differences between the New Zealand English dialect and other English dialects are the shifts in the short front vowels: the short-"i" sound (as in "kit") has centralised towards the schwa sound (the "a" in "comma" and "about"); the short-"e" sound (as in "dress") has moved towards the short-"i" sound; and the short-"a" sound (as in "trap") has moved to the short-"e" sound.[253] Hence, the New Zealand pronunciation of words such as "bad", "dead", "fish" and "chips" sound like "bed", "did", "fush" and "chups" to non-New Zealanders. After the Second World War, Māori were discouraged from speaking their own language (te reo Māori) in schools and workplaces and it existed as a community language only in a few remote areas.[254] It has recently undergone a process of revitalisation,[255][256] being declared one of New Zealand's official languages in 1987,[257] and is spoken by 4.1 percent of the population.[3] There are now Māori language immersion schools and two Māori Television channels, the only nationwide television channels to have the majority of their prime-time content delivered in Māori.[258] Many places have both their Māori and English names officially recognised. Samoan is one of the most widely spoken languages in New Zealand (2.3 percent),[n 8] followed by French, Hindi, Yue and Northern Chinese.[3][259][n 9] New Zealand Sign Language is used by about 28,000 people. It was declared one of New Zealand's official languages in 2006.[260]

Education

Primary and secondary schooling is compulsory for children aged 6 to 16, with the majority attending from the age of 5.[261] There are 13 school years and attending state (public) schools is free to New Zealand citizens and permanent residents from a person's 5th birthday to the end of the calendar year following their 19th birthday.[262] New Zealand has an adult literacy rate of 99 percent,[136] and over half of the population aged 15 to 29 hold a tertiary qualification.[261][n 10] There are five types of government-owned tertiary institutions: universities, colleges of education, polytechnics, specialist colleges, and wānanga,[263] in addition to private training establishments.[264] In the adult population 14.2 percent have a bachelor's degree or higher, 30.4 percent have some form of secondary qualification as their highest qualification and 22.4 percent have no formal qualification.[265] The OECD's Programme for International Student Assessment ranks New Zealand's education system as the 7th best in the world, with students performing exceptionally well in reading, mathematics and science.[266]
Simple white building with two red domed towers
A Rātana church

Religion

Christianity is the predominant religion in New Zealand, although its society is among the most secular in the world.[267] In the 2006 Census, 55.6 percent of the population identified themselves as Christians, while another 34.7 percent indicated that they had no religion (up from 29.6 percent in 2001) and around 4 percent affiliated with other religions.[268][n 11] The main Christian denominations are Anglicanism (14.8 percent), Roman Catholicism (13.6 percent), Presbyterianism (10.7 percent) and Methodism (5 percent). There are also significant numbers of Christians who identify themselves with Pentecostal, Baptist, and Latter-day Saint churches. According to census figures, other significant minority religions include Hinduism, Buddhism, and Islam.[259][269] The indigenous Māori tend to be associated with Presbyterian and Latter-day Saint churches, but the census showed that the New Zealand-based Ringatū and Rātana religions had experienced considerable growth.[270]

Culture

Tall wooden carving showing Kupe above two tentacled sea creatures
Late twentieth-century house-post depicting the navigator Kupe fighting two sea creatures

Early Māori adapted the tropically based east Polynesian culture in line with the challenges associated with a larger and more diverse environment, eventually developing their own distinctive culture. Social organisation was largely communal with families (whanau), sub-tribes (hapu) and tribes (iwi) ruled by a chief (rangatira) whose position was subject to the community's approval.[271] The British and Irish immigrants brought aspects of their own culture to New Zealand and also influenced Māori culture,[272][273] particularly with the introduction of Christianity.[274] However, Māori still regard their allegiance to tribal groups as a vital part of their identity, and Māori kinship roles resemble those of other Polynesian peoples.[275] More recently American, Australian, Asian and other European cultures have exerted influence on New Zealand. Non-Māori Polynesian cultures are also apparent, with Pasifika, the world's largest Polynesian festival, now an annual event in Auckland.
Two women in long flowing yellow skirts either side of a man in a short black skirt mid dance
Cook Islands dancers at Auckland's Pasifika festival

The largely rural life in early New Zealand led to the image of New Zealanders being rugged, industrious problem solvers.[276] Modesty was expected and enforced through the "tall poppy syndrome", where high achievers received harsh criticism.[277] At the time New Zealand was not known as an intellectual country.[278] From the early 20th century until the late 1960s Māori culture was suppressed by the attempted assimilation of Māori into British New Zealanders.[254] In the 1960s, as higher education became more available and cities expanded[279] urban culture began to dominate.[280] Even though the majority of the population now lives in cities, much of New Zealand's art, literature, film and humour has rural themes.

Art

As part of the resurgence of Māori culture, the traditional crafts of carving and weaving are now more widely practised and Māori artists are increasing in number and influence.[281] Most Māori carvings feature human figures, generally with three fingers and either a natural-looking, detailed head or a grotesque head.[282] Surface patterns consisting of spirals, ridges, notches and fish scales decorate most carvings.[283] The pre-eminent Māori architecture consisted of carved meeting houses (wharenui) decorated with symbolic carvings and illustrations. These buildings were originally designed to be constantly rebuilt, changing and adapting to different whims or needs.[284]
Māori decorated the white wood of buildings, canoes and cenotaphs using red (a mixture of red ochre and shark fat) and black (made from soot) paint and painted pictures of birds, reptiles and other designs on cave walls.[285] Māori tattoos (moko) consisting of coloured soot mixed with gum were cut into the flesh with a bone chisel.[286] Since European arrival paintings and photographs have been dominated by landscapes, originally not as works of art but as factual portrayals of New Zealand.[287] Portraits of Māori were also common, with early painters often portraying them as "noble savages", exotic beauties or friendly natives.[287] The country's isolation delayed the influence of European artistic trends allowing local artists to developed their own distinctive style of regionalism.[288] During the 1960s and 70s many artists combined traditional Māori and Western techniques, creating unique art forms.[289] New Zealand art and craft has gradually achieved an international audience, with exhibitions in the Venice Biennale in 2001 and the "Paradise Now" exhibition in New York in 2004.[281][290]
Refer to caption
Portrait of Hinepare of Ngāti Kahungunu by Gottfried Lindauer, showing chin moko, pounamu hei-tiki and woven cloak

Māori cloaks are made of fine flax fibre and patterned with black, red and white triangles, diamonds and other geometric shapes.[291] Greenstone was fashioned into earrings and necklaces, with the most well-known design being the hei-tiki, a distorted human figure sitting cross-legged with its head tilted to the side.[292] Europeans brought English fashion etiquette to New Zealand, and until the 1950s most people dressed up for social occasions.[293] Standards have since relaxed and New Zealand fashion has received a reputation for being casual, practical and lacklustre.[294][295] However, the local fashion industry has grown significantly since 2000, doubling exports and increasing from a handful to about 50 established labels, with some labels gaining international recognition.[295]

Literature

Māori quickly adopted writing as a means of sharing ideas, and many of their oral stories and poems were converted to the written form.[296] Most early English literature was obtained from Britain and it was not until the 1950s when local publishing outlets increased that New Zealand literature started to become widely known.[297] Although still largely influenced by global trends (modernism) and events (the Great Depression), writers in the 1930s began to develop stories increasingly focused on their experiences in New Zealand. During this period literature changed from a journalistic activity to a more academic pursuit.[298] Participation in the world wars gave some New Zealand writers a new perspective on New Zealand culture and with the post-war expansion of universities local literature flourished.[299]

Entertainment

Bungee jumping in the popular resort town of Queenstown.

New Zealand music has been influenced by blues, jazz, country, rock and roll and hip hop, with many of these genres given a unique New Zealand interpretation.[300] Māori developed traditional chants and songs from their ancient South-East Asian origins, and after centuries of isolation created a unique "monotonous" and "doleful" sound.[301] Flutes and trumpets were used as musical instruments[302] or as signalling devices during war or special occasions.[303] Early settlers brought over their ethnic music, with brass bands and choral music being popular, and musicians began touring New Zealand in the 1860s.[304][305] Pipe bands became widespread during the early 20th century.[306] The New Zealand recording industry began to develop from 1940 onwards and many New Zealand musicians have obtained success in Britain and the USA.[300] Some artists release Māori language songs and the Māori tradition-based art of kapa haka (song and dance) has made a resurgence.[307] The New Zealand Music Awards are held annually by Recorded Music NZ; the awards were first held in 1965 by Reckitt & Colman as the Loxene Golden Disc awards.[308] Recorded Music NZ also publishes the country's official weekly record charts.[309]

Radio first arrived in New Zealand in 1922 and television in 1960.[310] The number of New Zealand films significantly increased during the 1970s.[311] In 1978 the New Zealand Film Commission started assisting local film-makers and many films attained a world audience, some receiving international acknowledgement. The highest grossing New Zealand movies[312] include: Boy, The World's Fastest Indian, Once Were Warriors, and Whale Rider. Deregulation in the 1980s saw a sudden increase in the numbers of radio and television stations.[311] New Zealand television primarily broadcasts American and British programming, along with a large number of Australian and local shows. The country's diverse scenery and compact size, plus government incentives,[313] have encouraged some producers to film big budget movies in New Zealand.[314] The New Zealand media industry is dominated by a small number of companies, most of which are foreign-owned, although the state retains ownership of some television and radio stations. Between 2003 and 2008, Reporters Without Borders consistently ranked New Zealand's press freedom in the top twenty.[315] As of 2011, New Zealand was ranked 13th worldwide in press freedom by Freedom House, with the 2nd freest media in the Asia-Pacific region after Palau.[316]

Sports

The Basin Reserve in Wellington, one of the premier cricket grounds in New Zealand.

Most of the major sporting codes played in New Zealand have British origins.[317] Rugby union is considered the national sport[318] and attracts the most spectators.[319] Golf, netball, tennis and cricket have the highest rates of adult participation, while football (soccer) is top among young people.[319] Victorious rugby tours to Australia and the United Kingdom in the late 1880s and the early 1900s played an early role in instilling a national identity.[320] Horseracing was also a popular spectator sport and became part of the "Rugby, Racing and Beer" culture during the 1960s.[321] Māori participation in European sports was particularly evident in rugby and the country's team performs a haka, a traditional Māori challenge, before international matches.[322]

New Zealand has competitive international teams in rugby union, netball, cricket, rugby league, and softball and has traditionally done well in triathlons, rowing, yachting and cycling. New Zealand participated at the Summer Olympics in 1908 and 1912 as a joint team with Australia, before first participating on its own in 1920. The country has ranked highly on a medals-to-population ratio at recent Games.[319][323][324] The All Blacks, the national men's rugby union team, are the most successful in the history of international rugby[325] and the reigning World Cup champions.[326] New Zealand is known for its extreme sports, adventure tourism[327] and strong mountaineering tradition.[328] Other outdoor pursuits such as cycling, fishing, swimming, running, tramping, canoeing, hunting, snowsports and surfing are also popular.[329] The Polynesian sport of waka ama racing has increased in popularity and is now an international sport involving teams from all over the Pacific.[330]

James Chadwick

James Chadwick

From Wikipedia, the free encyclopedia

Sir James Chadwick
Chadwick.jpg
Born 20 October 1891
Bollington, Cheshire, England
Died 24 July 1974 (aged 82)
Cambridge, England
Citizenship United Kingdom
Fields Physics
Institutions
Alma mater
Doctoral advisor Ernest Rutherford
Doctoral students
Known for
Notable awards
Sir James Chadwick, CHFRS (20 October 1891 – 24 July 1974) was an English physicist who was awarded the 1935 Nobel Prize in physics for his discovery of the neutron in 1932. In 1941 he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atomic bomb research efforts. He was the head of the British team that worked on the Manhattan Project during the Second World War. He was knighted in England in 1945 for achievements in physics.
Chadwick graduated from the Victoria University of Manchester in 1911, where he studied under Ernest Rutherford (known as the "father of nuclear physics").[3] At Manchester, he continued to study under Rutherford until he was awarded his MSc in 1913. The same year, Chadwick was awarded an 1851 Research Fellowship from the Royal Commission for the Exhibition of 1851. He elected to study beta radiation under Hans Geiger in Berlin. Using Geiger's recently developed Geiger counter, Chadwick was able to demonstrate that beta radiation produced a continuous spectrum, and not discrete lines as had been thought. Still in Germany when the First World War broke out in Europe, he spent the next four years in the Ruhleben internment camp.

After the war, Chadwick followed Rutherford to the Cavendish Laboratory at the University of Cambridge, where Chadwick earned his Doctor of Philosophy degree under Rutherford's supervision from Gonville and Caius College, Cambridge in June 1921. He was Rutherford's Assistant Director of Research at the Cavendish Laboratory for over a decade at a time when it was one of the world's foremost centres for the study of physics, attracting students like John Cockcroft, Norman Feather, and Mark Oliphant. Chadwick pursued a line of research that led to his discovery of the neutron in 1932, and went on to measure its mass. He anticipated that neutrons would become a major weapon in the fight against cancer. Chadwick left the Cavendish Laboratory in 1935 to become a professor of physics at the University of Liverpool, where he overhauled an antiquated laboratory and, by installing a cyclotron, made it an important centre for the study of nuclear physics.

During the Second World War, Chadwick carried out research as part of the Tube Alloys project to build an atomic bomb, while his Liverpool lab and environs were harassed by Luftwaffe bombing. When the Quebec Agreement merged his project with the American Manhattan Project, he became part of the British Mission, and worked at the Los Alamos Laboratory and in Washington, D.C. He surprised everyone by earning the almost-complete trust of project director Leslie R. Groves, Jr. For his efforts, Chadwick received a knighthood in the New Year Honours on 1 January 1945. In July 1945, he viewed the Trinity nuclear test. After this, he served as the British scientific advisor to the United Nations Atomic Energy Commission. Uncomfortable with the trend toward Big Science, Chadwick became the Master of Gonville and Caius College in 1948. He retired in 1959.

Education and early life

James Chadwick was born in Bollington, Cheshire, on 20 October 1891,[4][5] the first child of John Joseph, a cotton spinner, and Anne Mary Knowles, a domestic servant. He was named James after his paternal grandfather. In 1895, his parents moved to Manchester, leaving him in the care of his maternal grandparents. He went to Bollington Cross Primary School, and was offered a scholarship to Manchester Grammar School, which his family had to turn down as they could not afford the small fees that still had to be paid. Instead he attended the Central Grammar School for Boys in Manchester, rejoining his parents there. He now had two younger brothers, Harry and Hubert; a sister had died in infancy. At the age of 16, he sat two examinations for university scholarships, and won both of them.[6][7]

Chadwick chose to attend Victoria University of Manchester, which he entered in 1908. He meant to study maths, but enrolled in physics by mistake. Like most students, he lived at home, walking the 4 miles (6.4 km) to the university and back each day. At the end of his first year, he was awarded a Heginbottom Scholarship to study physics. The physics department was headed by Ernest Rutherford, who assigned research projects to final-year students, and he instructed Chadwick to devise a means of comparing the amount of radioactive energy of two different sources. The idea was that they could be measured in terms of the activity of 1 gram (0.035 oz) of radium, a unit of measurement which would become known as the Curie. Rutherford's suggested approach was unworkable—something Chadwick knew but was afraid to tell Rutherford—so Chadwick pressed on, and eventually devised the required method. The results became Chadwick's first paper, which, co-authored with Rutherford, was published in 1912.[8] He graduated with first class honours in 1911.[9]

Having devised a means of measuring gamma radiation, Chadwick proceeded to measure the absorption of gamma rays by various gases and liquids. This time the resulting paper was published under his name alone. He was awarded his Master of Science (MSc) degree in 1912, and was appointed a Beyer Fellow. The following year he was awarded an 1851 Exhibition Scholarship, which allowed him to study and research at a university in continental Europe. He elected to go to the Physikalisch-Technische Reichsanstalt in Berlin in 1913, to study beta radiation under Hans Geiger.[10] Using Geiger's recently developed Geiger counter, which provided more accuracy than the earlier photographic techniques, he was able to demonstrate that beta radiation did not produce discrete lines, as has been previously thought, but rather a continuous spectrum with peaks in certain regions.[11][12][13][14] On a visit to Geiger's laboratory, Albert Einstein told Chadwick that: "I can explain either of these things, but I can't explain them both at the same time."[13] The continuous spectrum would remain an unexplained phenomenon for many years.[15]

Chadwick was still in Germany at the start of the First World War, and was interned in the Ruhleben internment camp near Berlin, where he was allowed to set up a laboratory in the stables and conduct scientific experiments using improvised materials such as radioactive toothpaste.[16] With the help of Charles Drummond Ellis, he worked on the ionisation of phosphorus, and the photochemical reaction of carbon monoxide and chlorine.[17][18] He was released after the Armistice with Germany came into effect in November 1918, and returned to his parents' home in Manchester, where he wrote up his findings over the previous four years for the 1851 Exhibition commissioners.[19]

Rutherford gave Chadwick a part-time teaching position at Manchester, allowing him to continue research.[19] He looked at the nuclear charge of platinum, silver, and copper, and experimentally found that this was the same as the atomic number within an error of less than 1.5 per cent.[20] In April 1919, Rutherford became director of the Cavendish Laboratory at the University of Cambridge, and Chadwick joined him there a few months later. Chadwick was awarded a Clerk-Maxwell studentship in 1920, and enrolled as a Doctor of Philosophy (PhD) student at Gonville and Caius College, Cambridge. The first half of his thesis was his work with atomic numbers. In the second, he looked at the forces inside the nucleus. His degree was awarded in June 1921.[21] In November he became a Fellow of Gonville and Caius College.[22]

Researcher

Cambridge

The Cavendish Laboratory was the home of some of the great discoveries in physics. It was founded in 1874 by the Duke of Devonshire (Cavendish was his family name), and its first professor was James Clerk Maxwell.[23]

Chadwick's Clerk-Maxwell studentship expired in 1923, and he was succeeded by the Russian physicist Pyotr Kapitza. The Chairman of the Advisory Council of the Department of Scientific and Industrial Research, Sir William McCormick arranged for Chadwick to become Rutherford's Assistant Director of Research. In this role, Chadwick helped Rutherford select PhD students. Over the next few years these would include John Cockcroft, Norman Feather and Mark Oliphant, who would become firm friends with Chadwick. As many students had no idea what they wanted to research, Rutherford and Chadwick would suggest topics. Chadwick edited all the papers produced by the laboratory.[24]

In 1925, Chadwick met Aileen Stewart-Brown, the daughter of a Liverpool stockbroker. The two were married in August 1925,[24] with Kapitza as Best Man. The couple had twin daughters, Joanna and Judith, who were born in February 1927.[25]

In his research, Chadwick continued to probe the nucleus. In 1925, the concept of spin had allowed physicists to explain the Zeeman effect, but it also created unexplained anomalies. At the time it was believed that the nucleus consisted of protons and electrons, so nitrogen's nucleus, for example, with a mass number of 14, was assumed to contain 14 protons and 7 electrons. This gave it the right mass and charge, but the wrong spin.[26]

At a conference at Cambridge on beta particles and gamma rays in 1928, Chadwick met Geiger again. Geiger had brought with him a new model of his Geiger counter, which had been improved by his post-doctoral student Walther Müller. Chadwick had not used one since the war, and the new Geiger–Müller counter was potentially a major improvement over the scintillation techniques then in use at Cambridge, which relied on the human eye for observation. The major drawback with it was that it detected alpha, beta and gamma radiation, and radium, which the Cavendish laboratory normally used in its experiments, emitted all three, and was therefore unsuitable for what Chadwick had in mind. However, polonium is an alpha emitter, and Lise Meitner sent Chadwick about 2 millicuries (about 0.5 µg) from Germany.[27][28]

In Germany, Walter Bothe and his student Herbert Becker had used polonium to bombard beryllium with alpha particles, producing an unusual form of radiation. Chadwick had his Australian 1851 Exhibition scholar, Hugh Webster, duplicate their results. To Chadwick, this was evidence of something that he and Rutherford had been hypothesising for years: the neutron, a theoretical nuclear particle with no electric charge.[27] Then in January 1932, Feather drew Chadwick's attention to another surprising result. Frédéric and Irène Joliot-Curie had succeeded in knocking protons from paraffin wax using polonium and beryllium as a source for what they thought was gamma radiation. Rutherford and Chadwick disagreed; protons were too heavy for that. But neutrons would need only a small amount of energy to achieve the same effect. In Rome, Ettore Majorana came to the same conclusion: the Joliot-Curies had discovered the neutron but did not know it.[29]

Chadwick dropped all his other responsibilities to concentrate on proving the existence of the neutron, frequently working late at night. He devised a simple apparatus that consisted of a cylinder containing a polonium source and beryllium target. The resulting radiation could then be directed at a material such as paraffin wax; the displaced particles, which were protons, would go into a small ionisation chamber where they could be detected with an oscilloscope.[29]
Sir Ernest Rutherford's laboratory

In February 1932, after only about two weeks of experimentation with neutrons,[16] Chadwick sent a letter to Nature titled "Possible Existence of a Neutron".[30] He communicated his findings in detail in an article sent to Proceedings of the Royal Society A titled "The Existence of a Neutron" in May.[31][32] His discovery was a milestone in understanding the nucleus. Reading Chadwick's paper, Robert Bacher and Edward Condon realised that anomalies in the then-current theory, like the spin of nitrogen, would be resolved if the neutron has a spin of 1/2 and that a nitrogen nucleus consisted of seven protons and seven neutrons.[33][34]

The theoretical physicists Niels Bohr and Werner Heisenberg became convinced that the neutron must be a nuclear particle, and not a proton–electron pair.[35][36][37][38] In his paper, Chadwick estimated that a neutron weighed about 1.0067 u. As a proton and an electron together weighed 1.0078 u, this implied a binding force of about MeV, which sounded reasonable.[35] Then Maurice Goldhaber, a refugee from Nazi Germany and a graduate student at the Cavendish Laboratory, suggested that deuterons could be photodisintegrated by gamma rays:[39]
2
1
D
 
γ  →  1
1
H
 
n
Chadwick and Goldhaber tried this and found that it worked.[40][41] They measured the kinetic energy of the protons produced as 1.05 MeV, leaving the mass of the neutron as the only unknown in the equation. Chadwick then calculated that it was between 1.0077 and 1.0086 atomic units.[42] By bombarding boron with alpha particles, Frédéric and Irène Joliot-Curie obtained a higher value for the mass of a neutron, but Ernest Lawrence's team at the University of California produced a lower one.[43] Further experiments would prove that the Joliot-Curies had the best measurement. The mass of the neutron was indeed greater than that of the proton, thereby supporting Bohr and Heisenberg's theory.[42] For his discovery of the neutron, Chadwick was awarded the Hughes Medal by the Royal Society in 1932, the Nobel Prize in Physics in 1935, the Copley Medal in 1950 and the Franklin Medal in 1951.[7]

Chadwick 's discovery of the neutron made it possible to produce elements heavier than uranium in the laboratory by the capture of slow neutrons followed by beta decay. Unlike the positively-charged alpha particles, which are repelled by the electrical forces present in the nuclei of other atoms, neutrons do not need to overcome any Coulomb barrier, and can therefore penetrate and enter the nuclei of even the heaviest elements such as uranium. This inspired Enrico Fermi to investigate the nuclear reactions brought about by collisions of nuclei with slow neutrons, work for which Fermi would ultimately receive the Nobel Prize.[44] The continuous spectrum of beta radiation, which Chadwick had reported in 1914, was explained by Wolfgang Pauli in 1930 by recourse to another hypothetical neutral particle, which Fermi named the neutrino in 1934.[45]

Liverpool


With the onset of the Great Depression in the United Kingdom, the government became more parsimonious with funding for science. At the same time, Lawrence's recent invention, the cyclotron, promised to revolutionise experimental nuclear physics, and Chadwick felt that the Cavendish laboratory would fall behind unless it also acquired one. He therefore chafed under Rutherford, who clung to the belief that good nuclear physics could still be done without large, expensive equipment, and turned down the request for a cyclotron.[46]

Chadwick was himself a critic of Big Science in general, and Lawrence in particular, whose approach he considered careless and focused on technology at the expense of science. When Lawrence postulated the existence of a new and hitherto unknown particle that he claimed was a possible source of limitless energy at the Solvay Conference in 1933, Chadwick responded that the results were more likely attributable to contamination of the equipment.[47] While Lawrence rechecked his results at Berkeley only to find that Chadwick was correct, Rutherford and Oliphant conducted an investigation at the Cavendish that found that deuterium fuses to form helium-3, thereby causing the effect that the Lawrence had observed. This was another major discovery, but the Oliphant-Rutherford particle accelerator was an expensive state-of-the-art piece of equipment.[48][49][50][51]

In March 1935, Chadwick received an offer of the Lyon Jones Chair of physics at the University of Liverpool, in his wife's home town, to succeed Lionel Wilberforce. The laboratory was so antiquated that it still ran on direct current electricity, but Chadwick seized the opportunity, assuming the chair on 1 October 1935. The university's prestige was soon bolstered by Chadwick's Nobel Prize, which was announced in November 1935.[52]

Chadwick set about acquiring a cyclotron for Liverpool. He started by spending £700 to refurbish the antiquated laboratories at Liverpool, so some components could be made in-house.[53] He was able to persuade the University to provide £2,000 and obtained a grant for another £2,000 from the Royal Society.[54] To build his cyclotron, Chadwick brought in two young experts, Bernard Kinsey and Harold Walke, who had worked with Lawrence at the University of California. A local cable manufacturer donated the copper conductor for the coils. The cyclotron's 50-ton magnet was manufactured in Trafford Park by Metropolitan-Vickers, which also made the vacuum chamber.[55] The cyclotron was completely installed and running in July 1939. The total cost of £5,184 was more than Chadwick had received from the University and the Royal Society, so Chadwick paid the rest from his 159,917 kr (£8,243) Nobel Prize money.[56]

At Liverpool the Medicine and Science faculties worked together closely. Chadwick was automatically a committee member of both faculties, and in 1938 he was appointed to a commission headed by Lord Derby to investigate the arrangements for cancer treatment in Liverpool. Chadwick anticipated that neutrons and radioactive isotopes produced with the 37-inch cyclotron could be used to study biochemical processes, and might become a weapon in the fight against cancer.[57][58]

Second World War

Tube Alloys and the MAUD Report

In Germany, Otto Hahn and Fritz Strassmann bombarded uranium with neutrons, and noted that barium, a lighter element, was among the products produced. Hitherto, only the same or heavier elements had been produced by the process. In January 1939, Meitner and her nephew Otto Frisch astounded the physics community with a paper that explained this result.[59] Using Bohr's liquid drop model, they showing how uranium atoms bombarded with neutrons can break into two roughly equal fragments, a process they called fission. They calculated that this would result in the release of about 200 MeV, implying an energy release orders of magnitude greater than chemical reactions,[60] and Frisch confirmed their theory experimentally.[61] It was soon noted by Hahn that if neutrons were released during fission, then a chain reaction was possible.[62] French scientists, Pierre Joliot, Hans von Halban and Lew Kowarski, soon verified that more than one neutron was indeed emitted per fission.[63] In a paper co-authored with the American physicist John Wheeler, Bohr theorised that fission was more likely to occur in the uranium-235 isotope, which made up only 0.7 percent of natural uranium.[64][65]
Key British physicists. Left to right: William Penney, Otto Frisch, Rudolf Peierls and John Cockroft. They are wearing the Medal of Freedom.

Chadwick did not believe that there was any likelihood of another war with Germany in 1939, and took his family for a holiday on a remote lake in northern Sweden. The news of the outbreak of the Second World War therefore came as a shock. Determined not to spend another war in an internment camp, Chadwick made his way to Stockholm as fast as he could, but when he arrived there with his family, he found that all air traffic between Stockholm and London had been suspended. They made their way back to England on a tramp steamer. When he reached Liverpool, Chadwick found Joseph Rotblat, a Polish post-doctoral fellow who had come to work with the cyclotron, was now destitute, as he was cut off from funds from Poland. Chadwick promptly hired Rotblat as a lecturer, despite his poor grasp of English.[66]

In October 1939, Chadwick received a letter from Sir Edward Appleton, the Secretary of the Department of Scientific and Industrial Research, asking for his opinion on the feasibility of an atomic bomb. Chadwick responded cautiously. He did not dismiss the possibility, but carefully went over the many theoretical and practical difficulties involved. Chadwick decided to investigate the properties of uranium oxide further with Rotblat.[67] In March 1940, Otto Frisch and Rudolf Peierls at the University of Birmingham re-examined the theoretical issues involved in a paper that became known as the Frisch–Peierls memorandum. Instead of looking at uranium metal, they considered what would happen to a sphere of pure uranium-235, and found that not only could a chain reaction occur, but that it might require as little as 1 kilogram (2.2 lb) of uranium-235, and unleash the energy of tons of dynamite.[68]
Part of Liverpool devastated by the Blitz

A special subcommittee of the Committee for the Scientific Survey of Air Warfare (CSSAW), known as the MAUD Committee, was created to investigate the matter further. It was chaired by Sir George Thomson and its original membership included Chadwick, along with Mark Oliphant, John Cockcroft and Philip Moon.[69] While other teams investigated uranium enrichment techniques, Chadwick's team at Liverpool concentrated on determining the nuclear cross section of uranium-235.[70] By April 1941, it had been experimentally confirmed that the critical mass of uranium-235 might be 8 kilograms (18 lb) or less.[71] His research into such matters was complicated by all-but-incessant Luftwaffe bombings of the environs of his Liverpool lab; the windows were blown out so often that they were replaced by cardboard.[72]

In July 1941, Chadwick was chosen to write the final draft of the MAUD Report, which, when presented by Vannevar Bush to President Franklin D. Roosevelt in October 1941, inspired the U.S. government to pour millions of dollars into the pursuit of an atomic bomb.[73] When George Pegram and Harold Urey visited Britain to see how the project,[74] now known as Tube Alloys,[75] was going, Chadwick was able to tell them: "I wish I could tell you that the bomb is not going to work, but I am 90 per cent sure that it will."[74]

In a recent book about the Bomb project, Graham Farmelo wrote that "Chadwick did more than any other scientist to give Churchill the Bomb. ... Chadwick was tested almost to the breaking point."[76] So worried that he could not sleep, Chadwick resorted to sleeping pills, which he continued to take for most of his remaining years. Chadwick later said that he realised that "a nuclear bomb was not only possible—it was inevitable. Sooner or later these ideas could not be peculiar to us. Everybody would think about them before long, and some country would put them into action".[77] Sir Hermann Bondi suggested that it was fortunate that Chadwick, not Rutherford, was the doyen of UK physics at the time, as the latter's prestige might otherwise have overpowered Chadwick's interest in "looking forward" to the Bomb's prospects.[78]

Manhattan Project


Owing to the danger from aerial bombardment, the Chadwicks sent their twins to Canada as part of a government evacuation scheme.[79] Chadwick was reluctant to move Tube Alloys there, believing that the United Kingdom was a better location for the isotope separation plant.[80] The enormous scope of the effort became more apparent in 1942: even a pilot separation plant would cost over ₤1 million and strain Britain's resources, to say nothing of a full-scale plant, which was estimated to cost somewhere in the vicinity of £25 million. It would have to be built in America.[81] At the same time that the British became convinced that a joint project was necessary, the progress of the American Manhattan Project was such that British cooperation seemed less essential, although the Americans were still eager to utilise Chadwick's talents.[82]

The matter of cooperation had to be taken up at the highest level. In September 1943, the Prime Minister, Winston Churchill, and President Roosevelt negotiated the Quebec Agreement, which reinstated cooperation between Britain, the United States and Canada. Chadwick, Oliphant, Peierls and Simon were summoned to the United States by the director of Tube Alloys, Sir Wallace Akers, to work with the Manhattan Project. The Quebec Agreement established a new Combined Policy Committee to direct the joint project. The Americans disliked Akers, so Chadwick was appointed technical advisor to the Combined Policy Committee, and the head of the British Mission.[83]

Leaving Rotblat in charge in Liverpool, Chadwick began a tour of the Manhattan Project facilities in November 1943, except for the Hanford Site, which he was not allowed to see. He became the only man apart from Groves and his second in command to have access to all the American research and production facilities for the Uranium bomb. Observing the work on the K-25 gaseous diffusion facility at Oak Ridge, Tennessee, Chadwick realised how wrong he had been about building the plant in wartime Britain. The enormous structure could never have been concealed from the Luftwaffe.[84] In early 1944, he moved to Los Alamos, New Mexico, with his wife and their twins, who now spoke with Canadian accents.[85] For security reasons, he was given the cover name of James Chaffee.[86]
Chadwick (left) with Major General Leslie R. Groves, Jr., the director of the Manhattan Project

Chadwick accepted that the Americans did not need British help, but that it could still be useful in bringing the project to an early and successful conclusion. Working closely with the director of the Manhattan Project, Major General Leslie R. Groves, Jr., he attempted to do everything he could to support the effort.[87] He also endeavoured to place British scientists in as many parts of the project as possible in order to facilitate a post-war British nuclear weapons project to which Chadwick was committed. Requests from Groves via Chadwick for particular scientists tended to be met with an immediate rejection by the company, ministry or university currently employing them, only to be overcome by the overriding priority accorded to Tube Alloys.[88] As a result, the British team was critical to the Project's success.[89]

Although he had more knowledge of the project than anyone else from Britain,[90] Chadwick had no access to the Hanford site. Lord Portal was offered a tour of Hanford in 1946. "This was the only plant to which Chadwick had been denied access in wartime, and now he asked Groves if he could accompany Portal. Groves replied that he could, but if he did then 'Portal will not see very much'."[91] For his efforts, Chadwick received a knighthood in the New Year Honours on 1 January 1945.[92] He considered this to be a recognition of the work of the whole Tube Alloys project.[93]

By early 1945, Chadwick was spending most of his time in Washington, D.C., and his family relocated from Los Alamos to a house on Washington's Dupont Circle in April 1945.[93] He was present at the meeting of the Combined Policy Committee on 4 July when Field Marshal Sir Henry Maitland Wilson gave Britain's agreement to use the atomic bomb against Japan,[94] and at the Trinity nuclear test on 16 July, when the first atomic bomb was detonated.[95] Inside its pit was a polonium-beryllium modulated neutron initiator, a development of the technique that Chadwick had used to discover the neutron over a decade before.[96] William L. Laurence, the New York Times reporter attached to the Manhattan Project, wrote that "never before in history had any man lived to see his own discovery materialize itself with such telling effect on the destiny of man."[97]

Later life

Shortly after the war ended, Chadwick was appointed to the Advisory Committee on Atomic Energy (ACAE). He was also appointed as the British scientific advisor to the United Nations Atomic Energy Commission. He clashed with fellow ACAE member Patrick Blackett, who disagreed with Chadwick's conviction that Britain needed to acquire its own nuclear weapons; but it was Chadwick's position that was ultimately adopted. He returned to Britain in 1946, to find a country still beset by wartime rationing and shortages.[98]

At this time, Sir James Mountford, the Vice Chancellor of the University of Liverpool, wrote in his diary "he had never seen a man 'so physically, mentally and spiritually tired" as Chadwick, for he "had plumbed such depths of moral decision as more fortunate men are never called upon even to peer into ... [and suffered] ... almost insupportable agonies of responsibility arising from his scientific work'."[99]

In 1948, Chadwick accepted an offer to become the Master of Gonville and Caius College. The job was prestigious but ill-defined; the Master was the titular head of the College, but authority actually resided in a council of 13 fellows, of whom one was the Master. As Master, Chadwick strove to improve the academic reputation of the college. He increased the number of research fellowships from 31 to 49, and sought to bring talent into the college.[100] This involved controversial decisions, such as hiring in 1951 the Chinese biochemist Tien-chin Tsao[101] and the Hungarian-born economist Peter Bauer. In what became known as the Peasants' Revolt, fellows led by Patrick Hadley voted an old friend of Chadwick's off the council and replaced him with Bauer. More friends of Chadwick's were removed over the following years, and he retired in November 1958. It was during his mastership that Francis Crick, a PhD student at Gonville and Caius College, and James Watson discovered the structure of DNA.[100]

Over the years, Chadwick received many honours, including the Medal for Merit from the United States, and the Pour le Mérite from Germany.[102] He was made a Companion of Honour in the New Year Honours on 1 January 1970 for "services to science",[103] and went to Buckingham Palace for the investiture ceremony. He died in his sleep on 24 July 1974.[102] His papers are held at the Churchill Archives Centre in Cambridge, and are accessible to the public.[104] The Chadwick Laboratory at the University of Liverpool is named after him,[105] as is its Sir James Chadwick Chair of Experimental Physics, which was named after him in 1991 as part of celebrations of the centenary of his birth.[106] A crater on the moon is also named after him.[107] He was described by the UK Atomic Energy official historian Lorna Arnold as "a physicist, a scientist-diplomat, and a good, wise, and humane man."[108]

Memory and trauma

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