109-567: Marlay Park ( Irish : Páirc Mharlaí ) is a 121 hectares (300 acres) suburban public park located in Rathfarnham in Dún Laoghaire–Rathdown , Ireland . Lying about nine kilometres (5.5 miles) from Dublin city centre , the parkland comprises woodlands, ponds and walks. Recreational spaces include a nine-hole, par-three golf course (reopened in 2010 after redesign and rebuild), tennis courts, six soccer pitches , five GAA pitches ,
218-573: A Gilman reagent . These can undergo substitution with alkyl halides to form coupling products ; as such, they are important in the field of organic synthesis . Copper(I) acetylide is highly shock-sensitive but is an intermediate in reactions such as the Cadiot–Chodkiewicz coupling and the Sonogashira coupling . Conjugate addition to enones and carbocupration of alkynes can also be achieved with organocopper compounds. Copper(I) forms
327-696: A covalent character and are relatively weak. This observation explains the low hardness and high ductility of single crystals of copper. At the macroscopic scale, introduction of extended defects to the crystal lattice , such as grain boundaries, hinders flow of the material under applied stress, thereby increasing its hardness. For this reason, copper is usually supplied in a fine-grained polycrystalline form, which has greater strength than monocrystalline forms. The softness of copper partly explains its high electrical conductivity ( 59.6 × 10 S /m ) and high thermal conductivity, second highest (second only to silver) among pure metals at room temperature. This
436-636: A nickel ) consists of 75% copper and 25% nickel in homogeneous composition. Prior to the introduction of cupronickel, which was widely adopted by countries in the latter half of the 20th century, alloys of copper and silver were also used, with the United States using an alloy of 90% silver and 10% copper until 1965, when circulating silver was removed from all coins with the exception of the half dollar—these were debased to an alloy of 40% silver and 60% copper between 1965 and 1970. The alloy of 90% copper and 10% nickel, remarkable for its resistance to corrosion,
545-425: A spin of 3 ⁄ 2 . The other isotopes are radioactive , with the most stable being Cu with a half-life of 61.83 hours. Seven metastable isomers have been characterized; Cu is the longest-lived with a half-life of 3.8 minutes. Isotopes with a mass number above 64 decay by β , whereas those with a mass number below 64 decay by β . Cu , which has
654-540: A unique dialect of Irish developed before falling out of use in the early 20th century. With a writing system , Ogham , dating back to at least the 4th century AD, which was gradually replaced by Latin script since the 5th century AD, Irish has one of the oldest vernacular literatures in Western Europe . On the island, the language has three major dialects: Connacht , Munster and Ulster Irish . All three have distinctions in their speech and orthography . There
763-697: A bargaining chip during government formation in Northern Ireland, prompting protests from organisations and groups such as An Dream Dearg . Irish became an official language of the EU on 1 January 2007, meaning that MEPs with Irish fluency can now speak the language in the European Parliament and at committees, although in the case of the latter they have to give prior notice to a simultaneous interpreter in order to ensure that what they say can be interpreted into other languages. While an official language of
872-560: A better future for Ireland and all her citizens." The Strategy was produced on 21 December 2010 and will stay in action until 2030; it aims to target language vitality and revitalization of the Irish language. The 30-page document published by the Government of Ireland details the objectives it plans to work towards in an attempt to preserve and promote both the Irish language and the Gaeltacht. It
981-399: A blast furnace. A potential source of copper is polymetallic nodules, which have an estimated concentration 1.3%. Like aluminium , copper is recyclable without any loss of quality, both from raw state and from manufactured products. In volume, copper is the third most recycled metal after iron and aluminium. An estimated 80% of all copper ever mined is still in use today. According to
1090-459: A blue crystalline penta hydrate , the most familiar copper compound in the laboratory. It is used in a fungicide called the Bordeaux mixture . Polyols , compounds containing more than one alcohol functional group , generally interact with cupric salts. For example, copper salts are used to test for reducing sugars . Specifically, using Benedict's reagent and Fehling's solution the presence of
1199-568: A cricket pitch,a dog park, two children's playgrounds and a miniature railway run by the Dublin Society of Model and Experimental Engineers. There is also a craft courtyard with home craft shops and a coffee shop. Dublin County Council acquired the land in 1972 and developed it as a regional park. Opened in 1975, it is now administered by Dún Laoghaire–Rathdown County Council . Dublin Bus serves
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#17328589768401308-472: A cultural and social force. Irish speakers often insisted on using the language in law courts (even when they knew English), and Irish was also common in commercial transactions. The language was heavily implicated in the "devotional revolution" which marked the standardisation of Catholic religious practice and was also widely used in a political context. Down to the time of the Great Famine and even afterwards,
1417-541: A degree course in the NUI federal system to pass the subject of Irish in the Leaving Certificate or GCE / GCSE examinations. Exemptions are made from this requirement for students who were born or completed primary education outside of Ireland, and students diagnosed with dyslexia . NUI Galway is required to appoint people who are competent in the Irish language, as long as they are also competent in all other aspects of
1526-574: A distinctive atmosphere. Located just over the wall, the kitchen garden houses a fine collection of regency fruit trees, vegetables and associated bothies . Daily tours of the gardens take place during the summer months and by appointment at other times. The former gardener's house offers refreshments year round. A number of small craft workshops are located in the 18th century stable yard adjacent to Marlay House including, weaving , glass cutting , bookbinding , furniture restoration , copper craft, pottery , jewellery and embroidery . One of these
1635-460: A fully recognised EU language for the first time in the state's history. Before Irish became an official language it was afforded the status of treaty language and only the highest-level documents of the EU were made available in Irish. The Irish language was carried abroad in the modern period by a vast diaspora , chiefly to Great Britain and North America, but also to Australia , New Zealand and Argentina . The first large movements began in
1744-457: A green patina of compounds called verdigris . Copper is sometimes used in decorative art , both in its elemental metal form and in compounds as pigments. Copper compounds are used as bacteriostatic agents , fungicides , and wood preservatives . Copper is essential to all living organisms as a trace dietary mineral because it is a key constituent of the respiratory enzyme complex cytochrome c oxidase . In molluscs and crustaceans , copper
1853-495: A half-life of 12.7 hours, decays both ways. Cu and Cu have significant applications. Cu is used in Cu Cu-PTSM as a radioactive tracer for positron emission tomography . Copper is produced in massive stars and is present in the Earth's crust in a proportion of about 50 parts per million (ppm). In nature, copper occurs in
1962-683: A layer of brown-black copper oxide which, unlike the rust that forms on iron in moist air, protects the underlying metal from further corrosion ( passivation ). A green layer of verdigris (copper carbonate) can often be seen on old copper structures, such as the roofing of many older buildings and the Statue of Liberty . Copper tarnishes when exposed to some sulfur compounds, with which it reacts to form various copper sulfides . There are 29 isotopes of copper. Cu and Cu are stable, with Cu comprising approximately 69% of naturally occurring copper; both have
2071-532: A natural color other than gray or silver. Pure copper is orange-red and acquires a reddish tarnish when exposed to air. This is due to the low plasma frequency of the metal, which lies in the red part of the visible spectrum, causing it to absorb the higher-frequency green and blue colors. As with other metals, if copper is put in contact with another metal in the presence of an electrolyte , galvanic corrosion will occur. Copper does not react with water, but it does slowly react with atmospheric oxygen to form
2180-574: A paper suggested that within a generation, non-Gaeltacht habitual users of Irish might typically be members of an urban, middle class, and highly educated minority. Parliamentary legislation is supposed to be available in both Irish and English but is frequently only available in English. This is notwithstanding that Article 25.4 of the Constitution of Ireland requires that an "official translation" of any law in one official language be provided immediately in
2289-554: A pass in Leaving Certificate Irish or English, and receive lessons in Irish during their two years of training. Official documents of the Irish government must be published in both Irish and English or Irish alone (in accordance with the Official Languages Act 2003, enforced by An Coimisinéir Teanga , the Irish language ombudsman). The National University of Ireland requires all students wishing to embark on
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#17328589768402398-407: A red-brown precipitate with copper(II) salts. Compounds that contain a carbon-copper bond are known as organocopper compounds. They are very reactive towards oxygen to form copper(I) oxide and have many uses in chemistry . They are synthesized by treating copper(I) compounds with Grignard reagents , terminal alkynes or organolithium reagents ; in particular, the last reaction described produces
2507-611: A religious context. An Irish translation of the Old Testament by Leinsterman Muircheartach Ó Cíonga , commissioned by Bishop Bedell , was published after 1685 along with a translation of the New Testament. Otherwise, Anglicisation was seen as synonymous with 'civilising' the native Irish. Currently, modern day Irish speakers in the church are pushing for language revival. It has been estimated that there were around 800,000 monoglot Irish speakers in 1800, which dropped to 320,000 by
2616-538: A result of linguistic imperialism . Today, Irish is still commonly spoken as a first language in Ireland's Gaeltacht regions, in which 2% of Ireland's population lived in 2022. The total number of people (aged 3 and over) in Ireland who declared they could speak Irish in April 2022 was 1,873,997, representing 40% of respondents, but of these, 472,887 said they never spoke it and a further 551,993 said they only spoke it within
2725-451: A rich variety of compounds, usually with oxidation states +1 and +2, which are often called cuprous and cupric , respectively. Copper compounds promote or catalyse numerous chemical and biological processes. As with other elements, the simplest compounds of copper are binary compounds, i.e. those containing only two elements, the principal examples being oxides, sulfides, and halides . Both cuprous and cupric oxides are known. Among
2834-424: A variety of minerals, including native copper , copper sulfides such as chalcopyrite , bornite , digenite , covellite , and chalcocite , copper sulfosalts such as tetrahedite-tennantite , and enargite , copper carbonates such as azurite and malachite , and as copper(I) or copper(II) oxides such as cuprite and tenorite , respectively. The largest mass of elemental copper discovered weighed 420 tonnes and
2943-436: A variety of weak complexes with alkenes and carbon monoxide , especially in the presence of amine ligands. Copper(III) is most often found in oxides. A simple example is potassium cuprate , KCuO 2 , a blue-black solid. The most extensively studied copper(III) compounds are the cuprate superconductors . Yttrium barium copper oxide (YBa 2 Cu 3 O 7 ) consists of both Cu(II) and Cu(III) centres. Like oxide, fluoride
3052-537: A wider meaning, including the Gaelic of Scotland and the Isle of Man , as well as of Ireland. When required by the context, these are distinguished as Gaeilge na hAlban , Gaeilge Mhanann and Gaeilge na hÉireann respectively. In English (including Hiberno-English ), the language is usually referred to as Irish , as well as Gaelic and Irish Gaelic . The term Irish Gaelic may be seen when English speakers discuss
3161-584: Is a Celtic language of the Indo-European language family . It is a member of the Goidelic language group of the Insular Celtic sub branch of the family and is indigenous to the island of Ireland . It was the majority of the population's first language until the 19th century, when English gradually became dominant, particularly in the last decades of the century, in what is sometimes characterised as
3270-603: Is a chemical element ; it has symbol Cu (from Latin cuprum ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity . A freshly exposed surface of pure copper has a pinkish-orange color . Copper is used as a conductor of heat and electricity, as a building material , and as a constituent of various metal alloys , such as sterling silver used in jewelry , cupronickel used to make marine hardware and coins , and constantan used in strain gauges and thermocouples for temperature measurement. Copper
3379-579: Is a constituent of the blood pigment hemocyanin , replaced by the iron-complexed hemoglobin in fish and other vertebrates . In humans, copper is found mainly in the liver, muscle, and bone. The adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight. In the Roman era , copper was mined principally on Cyprus , the origin of the name of the metal, from aes cyprium (metal of Cyprus), later corrupted to cuprum (Latin). Coper ( Old English ) and copper were derived from this,
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3488-405: Is a highly basic anion and is known to stabilize metal ions in high oxidation states. Both copper(III) and even copper(IV) fluorides are known, K 3 CuF 6 and Cs 2 CuF 6 , respectively. Some copper proteins form oxo complexes , which, in extensively studied synthetic analog systems, feature copper(III). With tetrapeptides , purple-colored copper(III) complexes are stabilized by
3597-448: Is also An Caighdeán Oifigiúil , a standardised written form devised by a parliamentary commission in the 1950s. The traditional Irish alphabet , a variant of the Latin alphabet with 18 letters , has been succeeded by the standard Latin alphabet (albeit with 7–8 letters used primarily in loanwords ). Irish has constitutional status as the national and first official language of
3706-401: Is because the resistivity to electron transport in metals at room temperature originates primarily from scattering of electrons on thermal vibrations of the lattice, which are relatively weak in a soft metal. The maximum possible current density of copper in open air is approximately 3.1 × 10 A/m , above which it begins to heat excessively. Copper is one of a few metallic elements with
3815-511: Is divided into four separate phases with the intention of improving 9 main areas of action including: The general goal for this strategy was to increase the number of daily speakers from 83,000 to 250,000 by the end of its run. By 2022, the number of such speakers had fallen to 71,968. Before the partition of Ireland in 1921, Irish was recognised as a school subject and as "Celtic" in some third level institutions. Between 1921 and 1972, Northern Ireland had devolved government. During those years
3924-529: Is melted in a furnace and then reduced and cast into billets and ingots ; lower-purity scrap is refined by electroplating in a bath of sulfuric acid . The environmental cost of copper mining was estimated at 3.7 kg CO2eq per kg of copper in 2019. Codelco, a major producer in Chile, reported that in 2020 the company emitted 2.8t CO2eq per ton (2.8 kg CO2eq per kg) of fine copper. Greenhouse gas emissions primarily arise from electricity consumed by
4033-762: Is one of the few metals that can occur in nature in a directly usable metallic form ( native metals ). This led to very early human use in several regions, from c. 8000 BC . Thousands of years later, it was the first metal to be smelted from sulfide ores, c. 5000 BC ; the first metal to be cast into a shape in a mold, c. 4000 BC ; and the first metal to be purposely alloyed with another metal, tin , to create bronze , c. 3500 BC . Commonly encountered compounds are copper(II) salts, which often impart blue or green colors to such minerals as azurite , malachite , and turquoise , and have been used widely and historically as pigments. Copper used in buildings, usually for roofing, oxidizes to form
4142-444: Is one of the most important constituents of silver and karat gold solders used in the jewelry industry, modifying the color, hardness and melting point of the resulting alloys. Some lead-free solders consist of tin alloyed with a small proportion of copper and other metals. The alloy of copper and nickel , called cupronickel , is used in low-denomination coins, often for the outer cladding. The US five-cent coin (currently called
4251-567: Is only in Gaeltacht areas that Irish continues to be spoken as a community vernacular to some extent. According to data compiled by the Department of Tourism, Culture, Arts, Gaeltacht , Sport and Media , only 1/4 of households in Gaeltacht areas are fluent in Irish. The author of a detailed analysis of the survey, Donncha Ó hÉallaithe of the Galway-Mayo Institute of Technology , described
4360-437: Is recovered from mine tailings and heaps. A variety of methods are used including leaching with sulfuric acid, ammonia, ferric chloride. Biological methods are also used. A significant source of copper is from recycling. Recycling is facilitated because copper is usually deployed in its metallic state. In 2001, a typical automobile contained 20–30 kg of copper. Recycling usually begins with some melting process using
4469-412: Is still spoken daily to some extent as a first language . These regions are known individually and collectively as the Gaeltacht (plural Gaeltachtaí ). While the fluent Irish speakers of these areas, whose numbers have been estimated at 20–30,000, are a minority of the total number of fluent Irish speakers, they represent a higher concentration of Irish speakers than other parts of the country and it
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4578-411: Is used for various objects exposed to seawater, though it is vulnerable to the sulfides sometimes found in polluted harbors and estuaries. Alloys of copper with aluminium (about 7%) have a golden color and are used in decorations. Shakudō is a Japanese decorative alloy of copper containing a low percentage of gold, typically 4–10%, that can be patinated to a dark blue or black color. Copper forms
4687-659: The Fíor-Ghaeltacht (true Gaeltacht ), a term originally officially applied to areas where over 50% of the population spoke Irish. There are Gaeltacht regions in the following counties: Gweedore ( Gaoth Dobhair ), County Donegal, is the largest Gaeltacht parish in Ireland. Irish language summer colleges in the Gaeltacht are attended by tens of thousands of teenagers annually. Students live with Gaeltacht families, attend classes, participate in sports, go to céilithe and are obliged to speak Irish. All aspects of Irish culture and tradition are encouraged. The Act
4796-675: The British Geological Survey , in 2005, Chile was the top producer of copper with at least one-third of the world share followed by the United States, Indonesia and Peru. Copper can also be recovered through the in-situ leach process. Several sites in the state of Arizona are considered prime candidates for this method. The amount of copper in use is increasing and the quantity available is barely sufficient to allow all countries to reach developed world levels of usage. An alternative source of copper for collection currently being researched are polymetallic nodules , which are located at
4905-588: The Great Lakes may have also been mining copper during this time, making it one of the oldest known examples of copper extraction in the world. There is evidence from prehistoric lead pollution from lakes in Michigan that people in the region began mining copper c. 6000 BC . Evidence suggests that utilitarian copper objects fell increasingly out of use in the Old Copper Complex of North America during
5014-536: The International Resource Panel 's Metal Stocks in Society report , the global per capita stock of copper in use in society is 35–55 kg. Much of this is in more-developed countries (140–300 kg per capita) rather than less-developed countries (30–40 kg per capita). The process of recycling copper is roughly the same as is used to extract copper but requires fewer steps. High-purity scrap copper
5123-699: The Neolithic period and the Bronze Age was formerly termed the Chalcolithic period (copper-stone), when copper tools were used with stone tools. The term has gradually fallen out of favor because in some parts of the world, the Chalcolithic and Neolithic are coterminous at both ends. Brass, an alloy of copper and zinc, is of much more recent origin. It was known to the Greeks, but became a significant supplement to bronze during
5232-619: The Republic of Ireland , and is also an official language of Northern Ireland and among the official languages of the European Union . The public body Foras na Gaeilge is responsible for the promotion of the language throughout the island. Irish has no regulatory body but An Caighdeán Oifigiúil , the standard written form, is guided by a parliamentary service and new vocabulary by a voluntary committee with university input. In An Caighdeán Oifigiúil ("The Official [Written] Standard ")
5341-521: The Vinča culture date to 4500 BC. Sumerian and Egyptian artifacts of copper and bronze alloys date to 3000 BC. Egyptian Blue , or cuprorivaite (calcium copper silicate) is a synthetic pigment that contains copper and started being used in ancient Egypt around 3250 BC. The manufacturing process of Egyptian blue was known to the Romans, but by the fourth century AD the pigment fell out of use and
5450-555: The 17th century, largely as a result of the Cromwellian conquest of Ireland , which saw many Irish sent to the West Indies . Irish emigration to the United States was well established by the 18th century, and was reinforced in the 1840s by thousands fleeing from the Famine . This flight also affected Britain. Up until that time most emigrants spoke Irish as their first language, though English
5559-769: The 1998 Good Friday Agreement , the language gradually received a degree of formal recognition in Northern Ireland from the United Kingdom, and then, in 2003, by the British government's ratification in respect of the language of the European Charter for Regional or Minority Languages . In the 2006 St Andrews Agreement the British government promised to enact legislation to promote the language and in 2022 it approved legislation to recognise Irish as an official language alongside English. The bill received royal assent on 6 December 2022. The Irish language has often been used as
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#17328589768405668-403: The 6th century, used the Latin alphabet and is attested primarily in marginalia to Latin manuscripts. During this time, the Irish language absorbed some Latin words, some via Old Welsh , including ecclesiastical terms : examples are easpag (bishop) from episcopus , and Domhnach (Sunday, from dominica ). By the 10th century, Old Irish had evolved into Middle Irish , which
5777-539: The 9th or 10th century AD. Carbon dating has established mining at Alderley Edge in Cheshire , UK, at 2280 to 1890 BC. Ötzi the Iceman , a male dated from 3300 to 3200 BC, was found with an axe with a copper head 99.7% pure; high levels of arsenic in his hair suggest an involvement in copper smelting. Experience with copper has assisted the development of other metals; in particular, copper smelting likely led to
5886-563: The Act all detailing different aspects of the use of Irish in official documentation and communication. Included in these sections are subjects such as Irish language use in official courts, official publications, and placenames. The Act was recently amended in December 2019 in order to strengthen the already preexisting legislation. All changes made took into account data collected from online surveys and written submissions. The Official Languages Scheme
5995-512: The Bronze Age and a shift towards an increased production of ornamental copper objects occurred. Natural bronze, a type of copper made from ores rich in silicon, arsenic, and (rarely) tin, came into general use in the Balkans around 5500 BC. Alloying copper with tin to make bronze was first practiced about 4000 years after the discovery of copper smelting, and about 2000 years after "natural bronze" had come into general use. Bronze artifacts from
6104-749: The Creator and Jack Harlow During the Summer months the park holds many concerts and events, some of the more popular artists have been: Guns N' Roses , Red Hot Chili Peppers , Foo Fighters , Green Day , Radiohead , Muse , The Killers , Westlife , Van Morrison , Sting , David Gray , Meat Loaf , UB40 , The Waterboys , R.E.M. , Oasis , Coldplay , The Chemical Brothers , Basement Jaxx , Underworld , Metallica , Nine Inch Nails , Macklemore and many others. Irish language Irish ( Standard Irish : Gaeilge ), also known as Irish Gaelic or simply Gaelic ( / ˈ ɡ eɪ l ɪ k / GAY -lik ),
6213-519: The Dublin hills and the Wicklow Mountains to Clonegal , County Carlow. Several housing developments adjacent to Marlay Park contain roads named " Marley ": Avenue, Drive, Walk, Close, Grove and Wood. Early ordnance survey maps also use the same spelling, as does at least one local road sign. Since 2013, Marlay Park has been home to Longitude Festival , which takes place during July each year. When
6322-463: The European Union , only co-decision regulations were available until 2022, due to a five-year derogation, requested by the Irish Government when negotiating the language's new official status. The Irish government had committed itself to train the necessary number of translators and interpreters and to bear the related costs. This derogation ultimately came to an end on 1 January 2022, making Irish
6431-536: The Irish language policy followed by Irish governments as a "complete and absolute disaster". The Irish Times , referring to his analysis published in the Irish language newspaper Foinse , quoted him as follows: "It is an absolute indictment of successive Irish Governments that at the foundation of the Irish State there were 250,000 fluent Irish speakers living in Irish-speaking or semi Irish-speaking areas, but
6540-535: The Middle East; a copper pendant was found in northern Iraq that dates to 8700 BC. Evidence suggests that gold and meteoric iron (but not smelted iron) were the only metals used by humans before copper. The history of copper metallurgy is thought to follow this sequence: first, cold working of native copper, then annealing , smelting , and, finally, lost-wax casting . In southeastern Anatolia , all four of these techniques appear more or less simultaneously at
6649-597: The Republic of Ireland ), new appointees to the Civil Service of the Republic of Ireland , including postal workers , tax collectors , agricultural inspectors, Garda Síochána (police), etc., were required to have some proficiency in Irish. By law, a Garda who was addressed in Irish had to respond in Irish as well. In 1974, in part through the actions of protest organisations like the Language Freedom Movement ,
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#17328589768406758-521: The affected areas is highly acidic, with a pH range of 2.1–4.9, and shows elevated electrical conductivity levels between 280 and 1561 mS/cm. These changes in water chemistry make the environment inhospitable for fish, essentially rendering the water uninhabitable for aquatic life. Numerous copper alloys have been formulated, many with important uses. Brass is an alloy of copper and zinc . Bronze usually refers to copper- tin alloys, but can refer to any alloy of copper such as aluminium bronze . Copper
6867-531: The atmosphere; 150 mg/kg in soil; 30 mg/kg in vegetation; 2 μg/L in freshwater and 0.5 μg/L in seawater. Most copper is mined or extracted as copper sulfides from large open pit mines in porphyry copper deposits that contain 0.4 to 1.0% copper. Sites include Chuquicamata , in Chile, Bingham Canyon Mine , in Utah, United States, and El Chino Mine , in New Mexico, United States. According to
6976-734: The beginning of the Neolithic c. 7500 BC . Copper smelting was independently invented in different places. The earliest evidence of lost-wax casting copper comes from an amulet found in Mehrgarh , Pakistan, and is dated to 4000 BC. Investment casting was invented in 4500–4000 BC in Southeast Asia Smelting was probably discovered in China before 2800 BC, in Central America around 600 AD, and in West Africa about
7085-682: The beginning of the following academic year. For a number of years there has been vigorous debate in political, academic and other circles about the failure of most students in English-medium schools to achieve competence in Irish, even after fourteen years of teaching as one of the three main subjects. The concomitant decline in the number of traditional native speakers has also been a cause of great concern. In 2007, filmmaker Manchán Magan found few Irish speakers in Dublin , and faced incredulity when trying to get by speaking only Irish in Dublin. He
7194-527: The company, especially when sourced from fossil fuels, and from engines required for copper extraction and refinement. Companies that mine land often mismanage waste, rendering the area sterile for life. Additionally, nearby rivers and forests are also negatively impacted. The Philippines is an example of a region where land is overexploited by mining companies. Copper mining waste in Valea Şesei, Romania, has significantly altered nearby water properties. The water in
7303-522: The deprotonated amide ligands. Complexes of copper(III) are also found as intermediates in reactions of organocopper compounds, for example in the Kharasch–Sosnovsky reaction . A timeline of copper illustrates how this metal has advanced human civilization for the past 11,000 years. Copper occurs naturally as native metallic copper and was known to some of the oldest civilizations on record. The history of copper use dates to 9000 BC in
7412-454: The depths of the Pacific Ocean approximately 3000–6500 meters below sea level. These nodules contain other valuable metals such as cobalt and nickel . Copper has been in use for at least 10,000 years, but more than 95% of all copper ever mined and smelted has been extracted since 1900. As with many natural resources, the total amount of copper on Earth is vast, with around 10 tons in
7521-550: The discovery of iron smelting . Production in the Old Copper Complex in Michigan and Wisconsin is dated between 6500 and 3000 BC. A copper spearpoint found in Wisconsin has been dated to 6500 BC. Copper usage by the indigenous peoples of the Old Copper Complex from the Great Lakes region of North America has been radiometrically dated to as far back as 7500 BC. Indigenous peoples of North America around
7630-713: The education system. Linguistic analyses of Irish speakers are therefore based primarily on the number of daily users in Ireland outside the education system, which in 2022 was 20,261 in the Gaeltacht and 51,707 outside it, totalling 71,968. In response to the 2021 census of Northern Ireland , 43,557 individuals stated they spoke Irish on a daily basis, 26,286 spoke it on a weekly basis, 47,153 spoke it less often than weekly, and 9,758 said they could speak Irish, but never spoke it. From 2006 to 2008, over 22,000 Irish Americans reported speaking Irish as their first language at home, with several times that number claiming "some knowledge" of
7739-468: The end of the famine, and under 17,000 by 1911. Irish is recognised by the Constitution of Ireland as the national and first official language of Republic of Ireland (English being the other official language). Despite this, almost all government business and legislative debate is conducted in English. In 1938, the founder of Conradh na Gaeilge (Gaelic League), Douglas Hyde , was inaugurated as
7848-545: The fastest water exchange rate (speed of water ligands attaching and detaching) for any transition metal aquo complex . Adding aqueous sodium hydroxide causes the precipitation of light blue solid copper(II) hydroxide . A simplified equation is: Aqueous ammonia results in the same precipitate. Upon adding excess ammonia, the precipitate dissolves, forming tetraamminecopper(II) : Many other oxyanions form complexes; these include copper(II) acetate , copper(II) nitrate , and copper(II) carbonate . Copper(II) sulfate forms
7957-542: The festival first started in its early years the line up was mostly bands and singer songwriters such as Phoenix , Kodaline , and Sam Smith . As the festival evolved in later years it mostly consisted of hip hop artists such as Stormzy , Travis Scott , and Ski Mask the Slump God . In 2022, after a three year hiatus due to the COVID-19 pandemic , the festival returned with acts such as ASAP Rocky , Megan Thee Stallion , Tyler,
8066-545: The first President of Ireland . The record of his delivering his inaugural Declaration of Office in Roscommon Irish is one of only a few recordings of that dialect. In the 2016 census, 10.5% of respondents stated that they spoke Irish, either daily or weekly, while over 70,000 people (4.2%) speak it as a habitual daily means of communication. From the foundation of the Irish Free State in 1922 (see History of
8175-698: The language family, is derived from the Old Irish term. Endonyms of the language in the various modern Irish dialects include: Gaeilge [ˈɡeːlʲɟə] in Galway, Gaeilg / Gaeilic / Gaeilig [ˈɡeːlʲəc] in Mayo and Ulster , Gaelainn / Gaoluinn [ˈɡeːl̪ˠən̠ʲ] in West/Cork, Kerry Munster , as well as Gaedhealaing in mid and East Kerry/Cork and Waterford Munster to reflect local pronunciation. Gaeilge also has
8284-410: The language was in use by all classes, Irish being an urban as well as a rural language. This linguistic dynamism was reflected in the efforts of certain public intellectuals to counter the decline of the language. At the end of the 19th century, they launched the Gaelic revival in an attempt to encourage the learning and use of Irish, although few adult learners mastered the language. The vehicle of
8393-472: The language. For most of recorded Irish history , Irish was the dominant language of the Irish people , who took it with them to other regions , such as Scotland and the Isle of Man , where Middle Irish gave rise to Scottish Gaelic and Manx . It was also, for a period, spoken widely across Canada , with an estimated 200,000–250,000 daily Canadian speakers of Irish in 1890. On the island of Newfoundland ,
8502-511: The later spelling first used around 1530. Copper, silver , and gold are in group 11 of the periodic table; these three metals have one s-orbital electron on top of a filled d- electron shell and are characterized by high ductility , and electrical and thermal conductivity. The filled d-shells in these elements contribute little to interatomic interactions, which are dominated by the s-electrons through metallic bonds . Unlike metals with incomplete d-shells, metallic bonds in copper are lacking
8611-419: The level of <1% Cu. Concentration of the ore is required, which begins with comminution followed by froth flotation . The remaining concentrate is the smelted, which can be described with two simplified equations: Cuprous oxide reacts with cuprous sulfide to convert to blister copper upon heating This roasting gives matte copper, roughly 50% Cu by weight, which is purified by electrolysis. Depending on
8720-479: The loss of 15 lives. His family lived there until 1925 when Robert Ketton Love bought the house for £8,325. He lived there until his death in 1939. His son, Philip Love, a market gardener who was once one of Ireland's largest tomato producers, was also a racehorse breeder whose famous horse Larkspur won the 1962 Epsom Derby . He died in August 1970 and in 1972 it was bought by Dublin County Council for £500,000. The park
8829-563: The mid-18th century, English was becoming a language of the Catholic middle class, the Catholic Church and public intellectuals, especially in the east of the country. Increasingly, as the value of English became apparent, parents sanctioned the prohibition of Irish in schools. Increasing interest in emigrating to the United States and Canada was also a driver, as fluency in English allowed
8938-472: The modern world. The price of copper is volatile . After a peak in 2022 the price unexpectedly fell. The global market for copper is one of the most commodified and financialized of the commodity markets , and has been so for decades. The great majority of copper ores are sulfides. Common ores are the sulfides chalcopyrite (CuFeS 2 ), bornite (Cu 5 FeS 4 ) and, to a lesser extent, covellite (CuS) and chalcocite (Cu 2 S). These ores occur at
9047-771: The name of the language is Gaeilge , from the South Connacht form, spelled Gaedhilge prior the spelling reform of 1948, which was originally the genitive of Gaedhealg , the form used in Classical Gaelic . The modern spelling results from the deletion of the silent ⟨dh⟩ in Gaedhilge . Older spellings include Gaoidhealg [ˈɡeːʝəlˠəɡ] in Classical Gaelic and Goídelc [ˈɡoiðʲelɡ] in Old Irish . Goidelic , used to refer to
9156-463: The new immigrants to get jobs in areas other than farming. An estimated one quarter to one third of US immigrants during the Great Famine were Irish speakers. Irish was not marginal to Ireland's modernisation in the 19th century, as is often assumed. In the first half of the century there were still around three million people for whom Irish was the primary language, and their numbers alone made them
9265-639: The number now is between 20,000 and 30,000." In the 1920s, when the Irish Free State was founded, Irish was still a vernacular in some western coastal areas. In the 1930s, areas where more than 25% of the population spoke Irish were classified as Gaeltacht . Today, the strongest Gaeltacht areas, numerically and socially, are those of South Connemara , the west of the Dingle Peninsula , and northwest Donegal, where many residents still use Irish as their primary language. These areas are often referred to as
9374-516: The numerous copper sulfides , important examples include copper(I) sulfide ( Cu 2 S ) and copper monosulfide ( CuS ). Cuprous halides with fluorine , chlorine , bromine , and iodine are known, as are cupric halides with fluorine , chlorine , and bromine . Attempts to prepare copper(II) iodide yield only copper(I) iodide and iodine. Copper forms coordination complexes with ligands . In aqueous solution, copper(II) exists as [Cu(H 2 O) 6 ] . This complex exhibits
9483-428: The ore, sometimes other metals are obtained during the electrolysis including platinum and gold. Aside from sulfides, another family of ores are oxides. Approximately 15% of the world's copper supply derives from these oxides. The beneficiation process for oxides involves extraction with sulfuric acid solutions followed by electrolysis. In parallel with the above method for "concentrated" sulfide and oxide ores, copper
9592-526: The original Marlay demesne which has its origins in the early eighteenth century. Thomas Taylor acquired about 12 hectares of land and built a house called 'The Grange'. David La Touche, a slave owner and first governor of the newly established Bank of Ireland , formerly the La Touche Bank, acquired the property in 1764 and extended the house. He renamed it for his wife Elizabeth Marlay, daughter of George Marlay , Bishop of Dromore . The La Touches developed
9701-498: The other official language, if not already passed in both official languages. In November 2016, RTÉ reported that over 2.3 million people worldwide were learning Irish through the Duolingo app. Irish president Michael D. Higgins officially honoured several volunteer translators for developing the Irish edition, and said the push for Irish language rights remains an "unfinished project". There are rural areas of Ireland where Irish
9810-440: The park directly with the 16 bus, but the following bus is within walking distance: 14 directly to the city centre. The 75 bus goes to Dún Laoghaire . Since 2000 Marlay Park has become a popular music venue with a maximum capacity of 40,000 featuring both renowned national and international performers. The park's name is commonly misspelt as Marley, most notably in nearby housing developments (see below). The park occupies part of
9919-539: The political party holding power in the Stormont Parliament , the Ulster Unionist Party (UUP), was hostile to the language. The context of this hostility was the use of the language by nationalists. In broadcasting, there was an exclusion on the reporting of minority cultural issues, and Irish was excluded from radio and television for almost the first fifty years of the previous devolved government. After
10028-503: The property, rebuilding the house and outbuildings and enlarging the extent of the demesne by acquiring adjoining land in 1776, 1777 and 1785. At its greatest extent, the property amounted to 158 hectares. The house, a fine example of Georgian architecture , has many elaborate features including plasterwork by Michael Stapleton . Marlay was sold in 1864 to Robert Tedcastle , a well-known Dublin ship owner and coal merchant. He named one of his ships 'Marlay', which sank off Howth in 1902 with
10137-487: The relationship between the three Goidelic languages (Irish, Scottish Gaelic and Manx). Gaelic is a collective term for the Goidelic languages, and when the context is clear it may be used without qualification to refer to each language individually. When the context is specific but unclear, the term may be qualified, as Irish Gaelic, Scottish Gaelic or Manx Gaelic. Historically the name "Erse" ( / ɜːr s / URS )
10246-432: The requirement for entrance to the public service was changed to proficiency in just one official language. Nevertheless, Irish remains a required subject of study in all schools in the Republic of Ireland that receive public money (see Education in the Republic of Ireland ). Teachers in primary schools must also pass a compulsory examination called Scrúdú Cáilíochta sa Ghaeilge . As of 2005, Garda Síochána recruits need
10355-625: The revival was the Gaelic League ( Conradh na Gaeilge ), and particular emphasis was placed on the folk tradition, which in Irish is particularly rich. Efforts were also made to develop journalism and a modern literature. Although it has been noted that the Catholic Church played a role in the decline of the Irish language before the Gaelic Revival, the Protestant Church of Ireland also made only minor efforts to encourage use of Irish in
10464-715: The secret to its manufacturing process became lost. The Romans said the blue pigment was made from copper, silica, lime and natron and was known to them as caeruleum . The Bronze Age began in Southeastern Europe around 3700–3300 BC, in Northwestern Europe about 2500 BC. It ended with the beginning of the Iron Age, 2000–1000 BC in the Near East, and 600 BC in Northern Europe. The transition between
10573-438: The sugar is signaled by a color change from blue Cu(II) to reddish copper(I) oxide. Schweizer's reagent and related complexes with ethylenediamine and other amines dissolve cellulose . Amino acids such as cystine form very stable chelate complexes with copper(II) including in the form of metal-organic biohybrids (MOBs). Many wet-chemical tests for copper ions exist, one involving potassium ferricyanide , which gives
10682-399: The top kilometer of Earth's crust, which is about 5 million years' worth at the current rate of extraction. However, only a tiny fraction of these reserves is economically viable with present-day prices and technologies. Estimates of copper reserves available for mining vary from 25 to 60 years, depending on core assumptions such as the growth rate. Recycling is a major source of copper in
10791-705: The vacancy to which they are appointed. This requirement is laid down by the University College Galway Act, 1929 (Section 3). In 2016, the university faced controversy when it announced the planned appointment of a president who did not speak Irish. Misneach staged protests against this decision. The following year the university announced that Ciarán Ó hÓgartaigh , a fluent Irish speaker, would be its 13th president. He assumed office in January 2018; in June 2024, he announced he would be stepping down as president at
10900-594: The work of such writers as Geoffrey Keating , is said to date from the 17th century, and was the medium of popular literature from that time on. From the 18th century on, the language lost ground in the east of the country. The reasons behind this shift were complex but came down to a number of factors: The change was characterised by diglossia (two languages being used by the same community in different social and economic situations) and transitional bilingualism (monoglot Irish-speaking grandparents with bilingual children and monoglot English-speaking grandchildren). By
11009-523: Was also sometimes used in Scots and then in English to refer to Irish; as well as Scottish Gaelic. Written Irish is first attested in Ogham inscriptions from the 4th century AD, a stage of the language known as Primitive Irish . These writings have been found throughout Ireland and the west coast of Great Britain. Primitive Irish underwent a change into Old Irish through the 5th century. Old Irish, dating from
11118-643: Was enacted 1 July 2019 and is an 18-page document that adheres to the guidelines of the Official Languages Act 2003 . The purpose of the Scheme is to provide services through the mediums of Irish and/or English. According to the Department of the Taoiseach, it is meant to "develop a sustainable economy and a successful society, to pursue Ireland's interests abroad, to implement the Government's Programme and to build
11227-483: Was establishing itself as the primary language. Irish speakers had first arrived in Australia in the late 18th century as convicts and soldiers, and many Irish-speaking settlers followed, particularly in the 1860s. New Zealand also received some of this influx. Argentina was the only non-English-speaking country to receive large numbers of Irish emigrants, and there were few Irish speakers among them. Copper Copper
11336-515: Was found in 1857 on the Keweenaw Peninsula in Michigan, US. Native copper is a polycrystal , with the largest single crystal ever described measuring 4.4 × 3.2 × 3.2 cm . Copper is the 26th most abundant element in Earth's crust , representing 50 ppm compared with 75 ppm for zinc , and 14 ppm for lead . Typical background concentrations of copper do not exceed 1 ng/m in
11445-418: Was officially opened by Taoiseach , Liam Cosgrave on 29 June 1975. A 1.82 hectare (4.5 acres) walled garden was built near the house around 1794, and consists of restored regency ornamental and kitchen gardens. The ornamental garden boasts an extensive display of period plants, ranging from herbaceous borders to shrub beds. The Head Gardener's house, orangery , arbour and water features combine to create
11554-456: Was originally the residence of Evie Hone whose stained-glass workshop was located in the library of Marlay House itself. Marlay Park is the official starting point of the 132 km Wicklow Way a long-distance walking trail , that begins at the car park adjacent to Marlay House. The trail wanders through the park before tunnelling under the M50 motorway to begin its first ascent southwards towards
11663-465: Was passed 14 July 2003 with the main purpose of improving the number and quality of public services delivered in Irish by the government and other public bodies. Compliance with the Act is monitored by the An Coimisinéir Teanga (Irish Language Commissioner) which was established in 2004 and any complaints or concerns pertaining to the Act are brought to them. There are 35 sections included in
11772-678: Was spoken throughout Ireland, Isle of Man and parts of Scotland . It is the language of a large corpus of literature, including the Ulster Cycle . From the 12th century, Middle Irish began to evolve into modern Irish in Ireland, into Scottish Gaelic in Scotland, and into the Manx language in the Isle of Man . Early Modern Irish , dating from the 13th century, was the basis of the literary language of both Ireland and Gaelic-speaking Scotland. Modern Irish, sometimes called Late Modern Irish, as attested in
11881-442: Was unable to accomplish some everyday tasks, as portrayed in his documentary No Béarla . There is, however, a growing body of Irish speakers in urban areas, particularly in Dublin. Many have been educated in schools in which Irish is the language of instruction. Such schools are known as Gaelscoileanna at primary level. These Irish-medium schools report some better outcomes for students than English-medium schools. In 2009,
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