98-439: Bronze is an alloy of copper with any of several other metals, often tin. Bronze may also refer to: Bronze Bronze is an alloy consisting primarily of copper , commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium , manganese , nickel , or zinc ) and sometimes non-metals, such as phosphorus , or metalloids , such as arsenic or silicon . These additions produce
196-601: A Vinča culture site in Pločnik ( Serbia ), and believed to have been smelted from a natural tin-copper ore, stannite . Other early examples date to the late 4th millennium BC in Egypt , Susa (Iran) and some ancient sites in China, Luristan (Iran), Tepe Sialk (Iran), Mundigak (Afghanistan), and Mesopotamia (Iraq). Tin bronze was superior to arsenic bronze in that the alloying process could be more easily controlled, and
294-524: A copper oxide (eventually becoming copper carbonate) layer is formed, the underlying metal is protected from further corrosion . This can be seen on statues from the Hellenistic period. If copper chlorides are formed, a corrosion-mode called " bronze disease " will eventually completely destroy it. Bronze, or bronze-like alloys and mixtures, were used for coins over a longer period. Bronze was especially suitable for use in boat and ship fittings prior to
392-535: A cross argent'). According to legend Saint Piran adopted these colours from seeing the white tin in the black coals and ashes during his discovery of tin. The Cornish flag is an exact reverse of the former Breton black cross national flag and is known by the same name " Kroaz Du ". Since the 19th century, Cornwall, with its unspoilt maritime scenery and strong light, has sustained a vibrant visual art scene of international renown. Artistic activity within Cornwall
490-525: A first language in the late 18th century. In the 20th and 21st centuries, it has been revived by a small number of speakers. It is closely related to the other Brythonic languages ( Breton and Welsh ), and less so to the Goidelic languages . Cornish has no legal status in the UK. There has been a revival of the language by academics and optimistic enthusiasts since the mid-19th century that gained momentum from
588-668: A large urban centre in south west Devon, is an important location for services such as hospitals, department stores, road and rail transport, and cultural venues, particularly for people living in east Cornwall. Cardiff and Swansea , across the Bristol Channel, have at some times in the past been connected to Cornwall by ferry, but these do not operate now. The Isles of Scilly are served by ferry (from Penzance) and by aeroplane, having its own airport: St Mary's Airport . There are regular flights between St Mary's and Land's End Airport , near St Just, and Newquay Airport ; during
686-453: A major industry. Railways were built, leading to a growth of tourism in the 20th century. The Cornish language became extinct as a living community language at the end of the 18th century , but is now being revived. The modern English name "Cornwall" is a compound of two terms coming from two different language groups: In the Cornish language , Cornwall is Kernow which stems from
784-665: A major influence on the development of cultures. In Europe, a major source of tin was the British deposits of ore in Cornwall , which were traded as far as Phoenicia in the eastern Mediterranean . In many parts of the world, large hoards of bronze artifacts are found, suggesting that bronze also represented a store of value and an indicator of social status. In Europe, large hoards of bronze tools, typically socketed axes (illustrated above), are found, which mostly show no signs of wear. With Chinese ritual bronzes , which are documented in
882-735: A raid from the Tamar to Land's End, and the end of Cornish independence. However, the Anglo-Saxon Chronicle states that in 825 (adjusted date) a battle took place between the Wealas (Cornish) and the Defnas (men of Devon) at Gafulforda . The Cornish giving battle here, and the later battle at Hingston Down, casts doubt on any claims of control Wessex had at this stage. In 838, the Cornish and their Danish allies were defeated by Egbert in
980-611: A range of alloys that may be harder than copper alone, or have other useful properties, such as strength , ductility , or machinability . The archaeological period in which bronze was the hardest metal in widespread use is known as the Bronze Age . The beginning of the Bronze Age in western Eurasia and India is conventionally dated to the mid-4th millennium BC (~3500 BC), and to the early 2nd millennium BC in China; elsewhere it gradually spread across regions. The Bronze Age
1078-628: A result, in 2005 its promoters received limited government funding. Several words originating in Cornish are used in the mining terminology of English, such as costean , gossan , gunnies , kibbal, kieve and vug . The Cornish language and culture influenced the emergence of particular pronunciations and grammar not used elsewhere in England. The Cornish dialect is spoken to varying degrees; however, someone speaking in broad Cornish may be practically unintelligible to one not accustomed to it. Cornish dialect has generally declined, as in most places it
SECTION 10
#17327657983621176-551: A sharper edge longer. Bronze was still used during the Iron Age, and has continued in use for many purposes to the modern day. There are many different bronze alloys, but typically modern bronze is 88% copper and 12% tin. Alpha bronze consists of the alpha solid solution of tin in copper. Alpha bronze alloys of 4–5% tin are used to make coins, springs, turbines and blades. Historical "bronzes" are highly variable in composition, as most metalworkers probably used whatever scrap
1274-551: A very infertile soil which covers the flat and marshy heaths of the interior of the peninsula. This is home to rare plants, such as the Cornish Heath , which has been adopted as the county flower . Cornwall's only city, and the home of the council headquarters , is Truro. Nearby Falmouth is notable as a port. St Just in Penwith is the westernmost town in England, though the same claim has been made for Penzance , which
1372-416: Is a better conductor of heat and electricity than most steels. The cost of copper-base alloys is generally higher than that of steels but lower than that of nickel -base alloys. Bronzes are typically ductile alloys, considerably less brittle than cast iron. Copper and its alloys have a huge variety of uses that reflect their versatile physical, mechanical, and chemical properties . Some common examples are
1470-403: Is by F. H. Davey Flora of Cornwall (1909). Davey was assisted by A. O. Hume and he thanks Hume, his companion on excursions in Cornwall and Devon, and for help in the compilation of that Flora, publication of which was financed by him. Cornwall has a temperate Oceanic climate ( Köppen climate classification : Cfb ), with mild winters and cool summers. Cornwall has the mildest and one of
1568-594: Is documented in a dedicated online journal. Local television programmes are provided by BBC South West & ITV West Country . Radio programmes are produced by BBC Radio Cornwall in Truro for the entire county, Heart West , Source FM for the Falmouth and Penryn areas, Coast FM for west Cornwall, Radio St Austell Bay for the St Austell area, NCB Radio for north Cornwall & Pirate FM . Cornwall has
1666-426: Is larger. St Ives and Padstow are today small vessel ports with a major tourism and leisure sector in their economies. Newquay on the north coast is another major urban settlement which is known for its beaches and is a popular surfing destination, as is Bude further north, but Newquay is now also becoming important for its aviation-related industries. Camborne is the county's largest town and more populous than
1764-527: Is likely that 'nehoshet' refers to copper and its alloys with tin, now called bronze. In the King James Version, there is no use of the word 'bronze' and 'nehoshet' was translated as 'brass'. Modern translations use 'bronze'. Bronze (nehoshet) was used widely in the Tabernacle for items such as the bronze altar (Exodus Ch.27), bronze laver (Exodus Ch.30), utensils, and mirror (Exodus Ch.38). It
1862-416: Is now little more than a regional accent and grammatical differences have been eroded over time. Marked differences in vocabulary and usage still exist between the eastern and western parts of Cornwall. Saint Piran 's Flag is the national flag and ancient banner of Cornwall, and an emblem of the Cornish people. The banner of Saint Piran is a white cross on a black background (in terms of heraldry 'sable,
1960-580: Is the homeland of the Cornish people . The county is bordered by the Atlantic Ocean to the north and west, Devon to the east, and the English Channel to the south. The largest urban area in the county is a conurbation that includes the former mining towns of Redruth and Camborne , and the county town is the city of Truro . The county is rural, with an area of 1,375 square miles (3,562 km ) and population of 568,210. Outside of
2058-725: Is the westernmost part of the South West Peninsula , and the southernmost county within the United Kingdom. Its coastline is characterised by steep cliffs and, to the south, several rias , including those at the mouths of the rivers Fal and Fowey . It includes the southernmost point on Great Britain , Lizard Point , and forms a large part of the Cornwall National Landscape . The national landscape also includes Bodmin Moor , an upland outcrop of
SECTION 20
#17327657983622156-453: Is used to make hammers , mallets , wrenches and other durable tools to be used in explosive atmospheres or in the presence of flammable vapors. Bronze is used to make bronze wool for woodworking applications where steel wool would discolor oak . Phosphor bronze is used for ships' propellers, musical instruments, and electrical contacts. Bearings are often made of bronze for its friction properties. It can be impregnated with oil to make
2254-541: Is used to make the tone rings of many professional model banjos . The tone ring is a heavy (usually 3 lb; 1.4 kg) folded or arched metal ring attached to a thick wood rim, over which a skin, or most often, a plastic membrane (or head) is stretched – it is the bell bronze that gives the banjo a crisp powerful lower register and clear bell-like treble register. Bronze has also been used in coins; most "copper" coins are actually bronze, with about 4 percent tin and 1 percent zinc. As with coins, bronze has been used in
2352-534: The Anglo-Saxon Chronicle in 891 as On Corn walum . In the Domesday Book it was referred to as Cornualia and in c. 1198 as Cornwal . Other names for the county include a latinisation of the name as Cornubia (first appears in a mid-9th-century deed purporting to be a copy of one dating from c. 705), and as Cornugallia in 1086. Cornwall forms the tip of the south-west peninsula of
2450-653: The A30 which connects Cornwall to the M5 motorway at Exeter , crosses the border south of Launceston , crosses Bodmin Moor and connects Bodmin, Truro, Redruth, Camborne, Hayle and Penzance. Torpoint Ferry links Plymouth with Torpoint on the opposite side of the Hamoaze . A rail bridge, the Royal Albert Bridge built by Isambard Kingdom Brunel (1859), provides the other main land transport link. The city of Plymouth,
2548-511: The Battle of Hingston Down at Hengestesdune. In 875, the last recorded king of Cornwall, Dumgarth , is said to have drowned. Around the 880s, Anglo-Saxons from Wessex had established modest land holdings in the north eastern part of Cornwall; notably Alfred the Great who had acquired a few estates. William of Malmesbury , writing around 1120, says that King Athelstan of England (924–939) fixed
2646-733: The Bodmin Manumissions . One interpretation of the Domesday Book is that by this time the native Cornish landowning class had been almost completely dispossessed and replaced by English landowners, particularly Harold Godwinson himself. However, the Bodmin manumissions show that two leading Cornish figures nominally had Saxon names, but these were both glossed with native Cornish names. In 1068, Brian of Brittany may have been created Earl of Cornwall , and naming evidence cited by medievalist Edith Ditmas suggests that many other post-Conquest landowners in Cornwall were Breton allies of
2744-542: The Celtic Sea , part of the Atlantic Ocean, is more exposed and therefore has a wilder nature. The High Cliff , between Boscastle and St Gennys , is the highest sheer-drop cliff in Cornwall at 223 metres (732 ft). Beaches, which form an important part of the tourist industry, include Bude , Polzeath , Watergate Bay , Perranporth , Porthtowan , Fistral Beach , Newquay , St Agnes , St Ives , and on
2842-694: The Cornubian batholith granite formation. The county contains many short rivers; the longest is the Tamar , which forms the border with Devon. Cornwall had a minor Roman presence, and later formed part of the Brittonic kingdom of Dumnonia . From the 7th century, the Britons in the South West increasingly came into conflict with the expanding Anglo-Saxon kingdom of Wessex , eventually being pushed west of
2940-588: The Dumnonii often came into conflict with the expanding English kingdom of Wessex . Centwine of Wessex "drove the Britons as far as the sea" in 682, and by 690 St Bonifice , then a Saxon boy, was attending an abbey in Exeter, which was in turn ruled by a Saxon abbot. The Carmen Rhythmicum written by Aldhelm contains the earliest literary reference to Cornwall as distinct from Devon. Religious tensions between
3038-515: The Dumnonii , three of which may have been in Cornwall. However, after 410 AD, Cornwall appears to have reverted to rule by Romano-Celtic chieftains of the Cornovii tribe as part of the Brittonic kingdom of Dumnonia (which also included present-day Devonshire and the Scilly Isles), including the territory of one Marcus Cunomorus , with at least one significant power base at Tintagel in
Bronze (disambiguation) - Misplaced Pages Continue
3136-560: The Etruscans were making bronze mirrors in the sixth century BC, and Greek and Roman mirrors followed the same pattern. Although other materials such as speculum metal had come into use, and Western glass mirrors had largely taken over, bronze mirrors were still being made in Japan and elsewhere in the eighteenth century, and are still made on a small scale in Kerala , India. Bronze is
3234-513: The Golden Age , when men lived among the gods; the Silver age , where youth lasted a hundred years; and the Bronze Age , the era of heroes. It was first adopted for a sports event at the 1904 Summer Olympics . At the 1896 event, silver was awarded to winners and bronze to runners-up, while at 1900 other prizes were given rather than medals. Bronze is the normal material for the related form of
3332-756: The Kingdom of Benin ; in Europe, Grecian bronzes typically of figures from Greek mythology ; in east Asia , Chinese ritual bronzes of the Shang and Zhou dynasty —more often ceremonial vessels but including some figurine examples. Bronze continues into modern times as one of the materials of choice for monumental statuary. Tiffany Glass Studios, made famous by Louis C. Tiffany commonly referred to his product as favrile glass or " Tiffany glass ," and used bronze in their artisan work for his Tiffany lamps . The largest and most ornate bronze fountain known to be cast in
3430-457: The River Looe are both popular with tourists. The interior of the county consists of a roughly east–west spine of infertile and exposed upland, with a series of granite intrusions, such as Bodmin Moor , which contains the highest land within Cornwall. From east to west, and with approximately descending altitude, these are Bodmin Moor, Hensbarrow north of St Austell , Carnmenellis to
3528-550: The plaquette , normally a rectangular work of art with a scene in relief , for a collectors' market. Bronze is also associated with eighth wedding anniversaries. There are over 125 references to bronze ('nehoshet'), which appears to be the Hebrew word used for copper and any of its alloys. However, the Old Testament era Hebrews are not thought to have had the capability to manufacture zinc (needed to make brass) and so it
3626-481: The sub-Roman Westcountry , South Wales, Brittany, the Channel Islands, and Ireland through the fifth and sixth centuries. In Cornwall, the arrival of Celtic saints such as Nectan , Paul Aurelian, Petroc , Piran , Samson and numerous others reinforced the preexisting Roman Christianity. The Battle of Deorham in 577 saw the separation of Dumnonia (and therefore Cornwall) from Wales, following which
3724-460: The "Cornish Riviera", is more sheltered and there are several broad estuaries offering safe anchorages, such as at Falmouth and Fowey . Beaches on the south coast usually consist of coarser sand and shingle, interspersed with rocky sections of wave-cut platform . Also on the south coast, the picturesque fishing village of Polperro , at the mouth of the Pol River, and the fishing port of Looe on
3822-623: The 12th-century Romanesque Baptismal font at St Bartholomew's Church, Liège is sometimes described as bronze and sometimes as brass . In the Bronze Age, two forms of bronze were commonly used: "classic bronze", about 10% tin, was used in casting; and "mild bronze", about 6% tin, was hammered from ingots to make sheets. Bladed weapons were mostly cast from classic bronze, while helmets and armor were hammered from mild bronze. Modern commercial bronze (90% copper and 10% zinc) and architectural bronze (57% copper, 3% lead , 40% zinc) are more properly regarded as brass alloys because they contain zinc as
3920-424: The 1st-century BC Sicilian Greek historian Diodorus Siculus , supposedly quoting or paraphrasing the 4th-century BCE geographer Pytheas , who had sailed to Britain: The inhabitants of that part of Britain called Belerion (or Land's End) from their intercourse with foreign merchants, are civilized in their manner of life. They prepare the tin , working very carefully the earth in which it is produced ... Here then
4018-603: The AHS Heat Zone 1. Extreme temperatures in Cornwall are particularly rare; however, extreme weather in the form of storms and floods is common. Due to climate change Cornwall faces more heatwaves and severe droughts, faster coastal erosion, stronger storms and higher wind speeds as well as the possibility of more high-impact flooding. Cornish, a member of the Brythonic branch of the Celtic language family , died out as
Bronze (disambiguation) - Misplaced Pages Continue
4116-785: The Dartmoor area). The stannary courts administered equity for the region's tin-miners and tin mining interests, and they were also courts of record for the towns dependent on the mines. The separate and powerful government institutions available to the tin miners reflected the enormous importance of the tin industry to the English economy during the Middle Ages. Special laws for tin miners pre-date written legal codes in Britain, and ancient traditions exempted everyone connected with tin mining in Cornwall and Devon from any jurisdiction other than
4214-784: The Dumnonians (who celebrated celtic Christian traditions) and Wessex (who were Roman Catholic ) are described in Aldhelm's letter to King Geraint . The Annales Cambriae report that in AD 722 the Britons of Cornwall won a battle at "Hehil" . It seems likely that the enemy the Cornish fought was a West Saxon force, as evidenced by the naming of King Ine of Wessex and his kinsman Nonna in reference to an earlier Battle of Llongborth in 710. The Anglo-Saxon Chronicle stated in 815 (adjusted date) "and in this year king Ecgbryht raided in Cornwall from east to west." this has been interpreted to mean
4312-453: The Lizard peninsula is unusual, in that it is mainland Britain's only example of an ophiolite , a section of oceanic crust now found on land. Much of the peninsula consists of the dark green and red Precambrian serpentinite , which forms spectacular cliffs, notably at Kynance Cove , and carved and polished serpentine ornaments are sold in local gift shops. This ultramafic rock also forms
4410-704: The Normans, the Bretons being descended from Britons who had fled to what is today Brittany during the early years of the Anglo-Saxon conquest. She also proposed this period for the early composition of the Tristan and Iseult cycle by poets such as Béroul from a pre-existing shared Brittonic oral tradition. Soon after the Norman conquest most of the land was transferred to the new Breton–Norman aristocracy, with
4508-575: The Phoenicians sailed to Cornwall. In fact, he says quite the opposite: the production of Cornish tin was in the hands of the natives of Cornwall, and its transport to the Mediterranean was organized by local merchants, by sea and then overland through France, passing through areas well outside Phoenician control." Isotopic evidence suggests that tin ingots found off the coast of Haifa , Israel , may have been from Cornwall. Tin, required for
4606-531: The Redruth-Camborne conurbation the largest settlements are Falmouth , Penzance , Newquay , St Austell , and Truro. For local government purposes most of Cornwall is a unitary authority area, with the Isles of Scilly having a unique local authority . The Cornish nationalist movement disputes the constitutional status of Cornwall and seeks greater autonomy within the United Kingdom. Cornwall
4704-492: The Roman road system extended into Cornwall with four significant Roman sites based on forts: Tregear near Nanstallon was discovered in the early 1970s, two others were found at Restormel Castle , Lostwithiel in 2007, and a third fort near Calstock was also discovered early in 2007. In addition, a Roman-style villa was found at Magor Farm , Illogan in 1935. Ptolemy 's Geographike Hyphegesis mentions four towns controlled by
4802-635: The St Austell area on 1 April 2009 St Austell was the largest settlement in Cornwall. Cornwall borders the county of Devon at the River Tamar. Major roads between Cornwall and the rest of Great Britain are the A38 which crosses the Tamar at Plymouth via the Tamar Bridge and the town of Saltash , the A39 road (Atlantic Highway) from Barnstaple , passing through North Cornwall to end in Falmouth, and
4900-623: The Tamar; by the Norman Conquest Cornwall was administered as part of England, though it retained its own culture. The remainder of the Middle Ages and Early Modern Period were relatively settled, with Cornwall developing its tin mining industry and becoming a duchy in 1337. During the Industrial Revolution , the tin and copper mines were expanded and then declined, with china clay extraction becoming
4998-659: The areas of present-day Ireland, England, Wales, France, Spain, and Portugal. During the British Iron Age , Cornwall, like all of Britain (modern England, Scotland, Wales, and the Isle of Man), was inhabited by a Celtic-speaking people known as the Britons with distinctive cultural relations to neighbouring Brittany . The Common Brittonic spoken at this time eventually developed into several distinct tongues, including Cornish , Welsh , Breton , Cumbric and Pictish . The first written account of Cornwall comes from
SECTION 50
#17327657983625096-452: The barrel. It is still widely used today for springs, bearings, bushings, automobile transmission pilot bearings, and similar fittings, and is particularly common in the bearings of small electric motors . Phosphor bronze is particularly suited to precision-grade bearings and springs. It is also used in guitar and piano strings. Unlike steel, bronze struck against a hard surface will not generate sparks, so it (along with beryllium copper )
5194-470: The battle of David and Goliath in I Samuel 17:5-6;38 (also see II Chron. 12:10). Cornwall Cornwall ( / ˈ k ɔːr n w ɔː l , - w əl / ; Cornish : Kernow ; Cornish pronunciation: [ˈkɛrnɔʊ] ; or [ˈkɛrnɔ] ) is a ceremonial county in South West England . It is recognised by Cornish and Celtic political groups as one of the Celtic nations , and
5292-555: The boundary between English and Cornish people at the east bank of the River Tamar . While elements of William's story, like the burning of Exeter , have been cast in doubt by recent writers Athelstan did re-establish a separate Cornish Bishop and relations between Wessex and the Cornish elite improved from the time of his rule. Eventually King Edgar was able to issue charters the width of Cornwall, and frequently sent emissaries or visited personally as seen by his appearances in
5390-442: The coast and are also rare in the central upland areas. Summers are, however, not as warm as in other parts of southern England. The surrounding sea and its southwesterly position mean that Cornwall's weather can be relatively changeable. Cornwall is one of the sunniest areas in the UK. It has more than 1,541 hours of sunshine per year, with the highest average of 7.6 hours of sunshine per day in July. The moist, mild air coming from
5488-424: The county town Truro. Together with the neighbouring town of Redruth , it forms the largest urban area in Cornwall, and both towns were significant as centres of the global tin mining industry in the 19th century; nearby copper mines were also very productive during that period. St Austell is also larger than Truro and was the centre of the china clay industry in Cornwall. Until four new parishes were created for
5586-586: The early 6th century. King Mark of Cornwall is a semi-historical figure known from Welsh literature, from the Matter of Britain , and, in particular, from the later Norman-Breton medieval romance of Tristan and Yseult , where he appears as a close relative of King Arthur , himself usually considered to be born of the Cornish people in folklore traditions derived from Geoffrey of Monmouth 's 12th-century Historia Regum Britanniae . Archaeology supports ecclesiastical, literary and legendary evidence for some relative economic stability and close cultural ties between
5684-545: The high electrical conductivity of pure copper, low-friction properties of bearing bronze (bronze that has a high lead content— 6–8%), resonant qualities of bell bronze (20% tin, 80% copper), and resistance to corrosion by seawater of several bronze alloys. The melting point of bronze varies depending on the ratio of the alloy components and is about 950 °C (1,742 °F). Bronze is usually nonmagnetic, but certain alloys containing iron or nickel may have magnetic properties. Typically bronze oxidizes only superficially; once
5782-523: The highest form of sculpture in Ancient Greek art , though survivals are few, as bronze was a valuable material in short supply in the Late Antique and medieval periods. Many of the most famous Greek bronze sculptures are known through Roman copies in marble, which were more likely to survive. In India, bronze sculptures from the Kushana ( Chausa hoard ) and Gupta periods ( Brahma from Mirpur-Khas , Akota Hoard, Sultanganj Buddha ) and later periods ( Hansi Hoard) have been found. Indian Hindu artisans from
5880-429: The inscriptions they carry and from other sources, the case is clear. These were made in enormous quantities for elite burials, and also used by the living for ritual offerings. Though bronze is generally harder than wrought iron , with Vickers hardness of 60–258 vs. 30–80, the Bronze Age gave way to the Iron Age after a serious disruption of the tin trade: the population migrations of around 1200–1100 BC reduced
5978-489: The island of Great Britain , and is therefore exposed to the full force of the prevailing winds that blow in from the Atlantic Ocean. The coastline is composed mainly of resistant rocks that give rise in many places to tall cliffs. Cornwall has a border with only one other county, Devon , which is formed almost entirely by the River Tamar , and the remainder (to the north) by the Marsland Valley . The north and south coasts have different characteristics. The north coast on
SECTION 60
#17327657983626076-401: The lion's share going to Robert, Count of Mortain , half-brother of King William and the largest landholder in England after the king with his stronghold at Trematon Castle near the mouth of the Tamar. Subsequently, however, Norman absentee landlords became replaced by a new Cornish-Norman ruling class including scholars such as Richard Rufus of Cornwall . These families eventually became
6174-824: The main alloying ingredient. They are commonly used in architectural applications. Plastic bronze contains a significant quantity of lead, which makes for improved plasticity, and was possibly used by the ancient Greeks in ship construction. Silicon bronze has a composition of Si: 2.80–3.80%, Mn: 0.50–1.30%, Fe: 0.80% max., Zn: 1.50% max., Pb: 0.05% max., Cu: balance. Other bronze alloys include aluminium bronze , phosphor bronze , manganese bronze, bell metal , arsenical bronze , speculum metal , bismuth bronze , and cymbal alloys . Copper-based alloys have lower melting points than steel or iron and are more readily produced from their constituent metals. They are generally about 10 percent denser than steel, although alloys using aluminum or silicon may be slightly less dense. Bronze
6272-410: The manufacture of various types of medals for centuries, and " bronze medals " are known in contemporary times for being awarded for third place in sporting competitions and other events. The term is now often used for third place even when no actual bronze medal is awarded. The usage in part arose from the trio of gold , silver and bronze to represent the first three Ages of Man in Greek mythology:
6370-446: The massive bronze doors to the United States Supreme Court Building in Washington, DC. Before it became possible to produce glass with acceptably flat surfaces, bronze was a standard material for mirrors. Bronze was used for this purpose in many parts of the world, probably based on independent discoveries. Bronze mirrors survive from the Egyptian Middle Kingdom (2040–1750 BC), and China from at least c. 550 BC . In Europe,
6468-457: The merchants buy the tin from the natives and carry it over to Gaul , and after traveling overland for about thirty days, they finally bring their loads on horses to the mouth of the Rhône. The identity of these merchants is unknown. It has been theorized that they were Phoenicians , but there is no evidence for this. Professor Timothy Champion, discussing Diodorus Siculus's comments on the tin trade, states that "Diodorus never actually says that
6566-475: The most important mining areas in Europe until the early 20th century. It is thought tin was mined here as early as the Bronze Age , and copper, lead, zinc and silver have all been mined in Cornwall . Alteration of the granite also gave rise to extensive deposits of China Clay , especially in the area to the north of St Austell, and the extraction of this remains an important industry. The uplands are surrounded by more fertile, mainly pastoral farmland. Near
6664-738: The names of individual alloys. This is done (at least in part) to prevent database searches from failing merely because of errors or disagreements in the naming of historic copper alloys. The word bronze (1730–1740) is borrowed from Middle French bronze (1511), itself borrowed from Italian bronzo ' bell metal, brass ' (13th century, transcribed in Medieval Latin as bronzium ) from either: The discovery of bronze enabled people to create metal objects that were harder and more durable than previously possible. Bronze tools , weapons , armor , and building materials such as decorative tiles were harder and more durable than their stone and copper (" Chalcolithic ") predecessors. Initially, bronze
6762-516: The new rulers of Cornwall, typically speaking Norman French , Breton-Cornish, Latin , and eventually English, with many becoming involved in the operation of the Stannary Parliament system, the Earldom and eventually the Duchy of Cornwall . The Cornish language continued to be spoken and acquired a number of characteristics establishing its identity as a separate language from Breton . The stannary parliaments and stannary courts were legislative and legal institutions in Cornwall and in Devon (in
6860-419: The period of the Chola empire in Tamil Nadu used bronze to create intricate statues via the lost-wax casting method with ornate detailing depicting the deities of Hinduism . The art form survives to this day, with many silpis, craftsmen, working in the areas of Swamimalai and Chennai . In antiquity other cultures also produced works of high art using bronze. For example: in Africa, the bronze heads of
6958-424: The preferred metal for bells in the form of a high tin bronze alloy known as bell metal , which is typically about 23% tin. Nearly all professional cymbals are made from bronze, which gives a desirable balance of durability and timbre . Several types of bronze are used, commonly B20 bronze , which is roughly 20% tin, 80% copper, with traces of silver, or the tougher B8 bronze made from 8% tin and 92% copper. As
7056-505: The production of bronze , was a relatively rare and precious commodity in the Bronze Age – hence the interest shown in Devon and Cornwall's tin resources. (For further discussion of tin mining see the section on the economy below .) In the first four centuries AD, during the time of Roman dominance in Britain , Cornwall was rather remote from the main centres of Romanization – the nearest being Isca Dumnoniorum , modern-day Exeter . However,
7154-452: The proprietary Oilite and similar material for bearings. Aluminum bronze is hard and wear-resistant, and is used for bearings and machine tool ways. The Doehler Die Casting Co. of Toledo, Ohio were known for the production of Brastil , a high tensile corrosion resistant bronze alloy. The Seagram Building on New York City 's Park Avenue is the "iconic glass box sheathed in bronze, designed by Mies van der Rohe ." The Seagram Building
7252-550: The publication in 1904 of Henry Jenner 's Handbook of the Cornish Language . It is a social networking community language rather than a social community group language. Cornwall Council encourages and facilitates language classes within the county, in schools and within the wider community. In 2002, Cornish was named as a UK regional language in the European Charter for Regional or Minority Languages . As
7350-454: The ready availability of silicon bronze brazing rod, which allows color-matched repair of defects in castings. Aluminum is also used for the structural metal aluminum bronze. Bronze parts are tough and typically used for bearings , clips, electrical connectors and springs . Bronze also has low friction against dissimilar metals, making it important for cannons prior to modern tolerancing , where iron cannonballs would otherwise stick in
7448-626: The resulting alloy was stronger and easier to cast. Also, unlike those of arsenic , metallic tin and the fumes from tin refining are not toxic . Tin became the major non-copper ingredient of bronze in the late 3rd millennium BC. Ores of copper and the far rarer tin are not often found together (exceptions include Cornwall in the United Kingdom, one ancient site in Thailand and one in Iran), so serious bronze work has always involved trade with other regions. Tin sources and trade in ancient times had
7546-639: The same Proto-Celtic root. Humans reoccupied Britain after the last Ice Age . The area now known as Cornwall was first inhabited in the Palaeolithic and Mesolithic periods. It continued to be occupied by Neolithic and then by Bronze Age people. Cornwall in the Late Bronze Age formed part of a maritime trading-networked culture which researchers have dubbed the Atlantic Bronze Age system, and which extended over most of
7644-784: The sculptor Barbara Hepworth , at the outbreak of the Second World War . They were later joined by the Russian emigrant Naum Gabo , and other artists. These included Peter Lanyon , Terry Frost , Patrick Heron , Bryan Wynter and Roger Hilton . St Ives also houses the Leach Pottery, where Bernard Leach , and his followers championed Japanese inspired studio pottery. Much of this modernist work can be seen in Tate St Ives . The Newlyn Society and Penwith Society of Arts continue to be active, and contemporary visual art
7742-415: The shipping of tin around the Mediterranean and from Britain, limiting supplies and raising prices. As the art of working in iron improved, iron became cheaper and improved in quality. As later cultures advanced from hand- wrought iron to machine- forged iron (typically made with trip hammers powered by water), blacksmiths also learned how to make steel . Steel is stronger and harder than bronze and holds
7840-584: The south coast Gyllyngvase beach in Falmouth and the large beach at Praa Sands further to the south-west. There are two river estuaries on the north coast: Hayle Estuary and the estuary of the River Camel , which provides Padstow and Rock with a safe harbour. The seaside town of Newlyn is a popular holiday destination, as it is one of the last remaining traditional Cornish fishing ports, with views reaching over Mount's Bay. The south coast, dubbed
7938-493: The south coast, deep wooded valleys provide sheltered conditions for flora that like shade and a moist, mild climate. These areas lie mainly on Devonian sandstone and slate . The north east of Cornwall lies on Carboniferous rocks known as the Culm Measures . In places these have been subjected to severe folding, as can be seen on the north coast near Crackington Haven and in several other locations. The geology of
8036-568: The south of Camborne , and the Penwith or Land's End peninsula. These intrusions are the central part of the granite outcrops that form the exposed parts of the Cornubian batholith of south-west Britain, which also includes Dartmoor to the east in Devon and the Isles of Scilly to the west, the latter now being partially submerged. The intrusion of the granite into the surrounding sedimentary rocks gave rise to extensive metamorphism and mineralisation , and this led to Cornwall being one of
8134-541: The southwest brings higher amounts of rainfall than in eastern Great Britain, at 1,051 to 1,290 mm (41.4 to 50.8 in) per year. However, this is not as much as in more northern areas of the west coast. The Isles of Scilly, for example, where there are on average fewer than two days of air frost per year, is the only area in the UK to be in the Hardiness zone 10. The islands have, on average, less than one day of air temperature exceeding 30 °C per year and are in
8232-609: The stannary courts in all but the most exceptional circumstances. Cornish piracy was active during the Elizabethan era on the west coast of Britain. Cornwall is well known for its wreckers who preyed on ships passing Cornwall's rocky coastline. During the 17th and 18th centuries Cornwall was a major smuggling area. In later times, Cornwall was known to the Anglo-Saxons as "West Wales" to distinguish it from "North Wales" (the modern nation of Wales ). The name appears in
8330-500: The summer season, a service is also provided between St Mary's and Exeter Airport , in Devon. Cornwall has varied habitats including terrestrial and marine ecosystems. One noted species in decline locally is the Reindeer lichen , which species has been made a priority for protection under the national UK Biodiversity Action Plan . Botanists divide Cornwall and Scilly into two vice-counties: West (1) and East (2). The standard flora
8428-480: The sunniest climates of the United Kingdom, as a result of its oceanic setting and the influence of the Gulf Stream . The average annual temperature in Cornwall ranges from 11.6 °C (52.9 °F) on the Isles of Scilly to 9.8 °C (49.6 °F) in the central uplands. Winters are among the warmest in the country due to the moderating effects of the warm ocean currents, and frost and snow are very rare at
8526-469: The tin content in a bell or cymbal rises, the timbre drops. Bronze is also used for the windings of steel and nylon strings of various stringed instruments such as the double bass , piano, harpsichord , and guitar. Bronze strings are commonly reserved on pianoforte for the lower pitch tones, as they possess a superior sustain quality to that of high-tensile steel. Bronzes of various metallurgical properties are widely used in struck idiophones around
8624-439: The unusual and desirable property of expanding slightly just before they set, thus filling the finest details of a mould. Then, as the bronze cools, it shrinks a little, making it easier to separate from the mould. The Assyrian king Sennacherib (704–681 BC) claims to have been the first to cast monumental bronze statues (of up to 30 tonnes) using two-part moulds instead of the lost-wax method . Bronze statues were regarded as
8722-419: The wide employment of stainless steel owing to its combination of toughness and resistance to salt water corrosion. Bronze is still commonly used in ship propellers and submerged bearings. In the 20th century, silicon was introduced as the primary alloying element, creating an alloy with wide application in industry and the major form used in contemporary statuary . Sculptors may prefer silicon bronze because of
8820-716: The world was by the Roman Bronze Works and General Bronze Corporation in 1952. The material used for the fountain, known as statuary bronze, is a quaternary alloy made of copper, zinc, tin, and lead, and traditionally golden brown in color. This was made for the Andrew W. Mellon Memorial Fountain in Federal Triangle in Washington, DC. Another example of the massive, ornate design projects of bronze, and attributed to General Bronze/Roman Bronze Works were
8918-710: The world, notably bells, singing bowls, gongs , cymbals, and other idiophones from Asia. Examples include Tibetan singing bowls , temple bells of many sizes and shapes, Javanese gamelan , and other bronze musical instruments . The earliest bronze archeological finds in Indonesia date from 1–2 BC, including flat plates probably suspended and struck by a wooden or bone mallet. Ancient bronze drums from Thailand and Vietnam date back 2,000 years. Bronze bells from Thailand and Cambodia date back to 3600 BC. Some companies are now making saxophones from phosphor bronze (3.5 to 10% tin and up to 1% phosphorus content). Bell bronze/B20
9016-484: Was followed by the Iron Age starting about 1300 BC and reaching most of Eurasia by about 500 BC, although bronze continued to be much more widely used than it is in modern times. Because historical artworks were often made of brasses (copper and zinc) and bronzes of different metallic compositions, modern museum and scholarly descriptions of older artworks increasingly use the generalized term "copper alloy" instead of
9114-491: Was initially centred on the art-colony of Newlyn , most active at the turn of the 20th century. This Newlyn School is associated with the names of Stanhope Forbes , Elizabeth Forbes , Norman Garstin and Lamorna Birch . Modernist writers such as D. H. Lawrence and Virginia Woolf lived in Cornwall between the wars, and Ben Nicholson , the painter, having visited in the 1920s came to live in St Ives with his then wife,
9212-525: Was made out of copper and arsenic or from naturally or artificially mixed ores of those metals, forming arsenic bronze . The earliest known arsenic-copper-alloy artifacts come from a Yahya Culture (Period V 3800-3400 BCE) site, at Tal-i-Iblis on the Iranian plateau , and were smelted from native arsenical copper and copper-arsenides, such as algodonite and domeykite . The earliest tin-copper-alloy artifact has been dated to c. 4650 BC , in
9310-474: Was mentioned in the account of Moses holding up a bronze snake on a pole in Numbers Ch.21. In First Kings, it is mentioned that Hiram was very skilled in working with bronze, and he made many furnishings for Solomon's Temple including pillars, capitals, stands, wheels, bowls, and plates, some of which were highly decorative (see I Kings 7:13-47). Bronze was also widely used as battle armor and helmet, as in
9408-424: Was not only the most expensive building of its time — $ 36 million — but it was the first building in the world with floor-to-ceiling glass walls. Mies van der Rohe achieved the crisp edges that were custom-made with specific detailing by General Bronze and "even the screws that hold in the fixed glass-plate windows were made of brass." Bronze is widely used for casting bronze sculptures . Common bronze alloys have
9506-481: Was on hand; the metal of the 12th-century English Gloucester Candlestick is bronze containing a mixture of copper, zinc, tin, lead, nickel, iron, antimony, arsenic and an unusually large amount of silver – between 22.5% in the base and 5.76% in the pan below the candle. The proportions of this mixture suggest that the candlestick was made from a hoard of old coins. The 13th-century Benin Bronzes are in fact brass, and
9604-593: Was the first time that an entire building was sheathed in bronze. The General Bronze Corporation fabricated 3,200,000 pounds (1,600 tons) of bronze at its plant in Garden City, New York . The Seagram Building is a 38-story, 516-foot bronze-and- topaz -tinted glass building. The building looks like a "squarish 38-story tower clad in a restrained curtain wall of metal and glass." "Bronze was selected because of its color, both before and after aging, its corrosion resistance, and its extrusion properties. In 1958, it
#361638