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does anyone know any useful resources on where i can answer theses questions , websites? . im having a difficult time fiding them ..

How was copper discovered?

did ancient civilizations use copper and for what purpose?

how was the element been used in the past? and in the present?

what tools , technology, or items are made from copper?

who are important people that contributed to the history of copper?

what future development using coppert are predicted?

2006-10-21 14:17:57 · 4 answers · asked by stEveN T 1 in Science & Mathematics Chemistry

4 answers

Copper (IPA: /ˈkɒpə/) is a chemical element in the periodic table that has the symbol Cu (Latin: cuprum) and atomic number 29. It is a ductile metal with excellent electrical conductivity, and finds extensive use as an electrical conductor, as a building material, and as a component of various alloys.

Copper is an essential nutrient to all higher plants and animals. In animals, it is found primarily in the bloodstream, as a cofactor in various enzymes, and in copper-based pigments. In sufficent amounts, copper can be poisonous or even fatal to both humans and other life

Copper has played a significant part in the history of mankind, which has used the easily accessible uncompounded metal for nearly 10,000 years. Civilizations in places like Iraq, China, Egypt, Greece and the Sumarian cities all have early evidence of using copper, and Britain and the United States also have extensive histories of copper use and mining. During the Roman Empire, copper was principally mined on Cyprus, hence the origin of the name of the metal as Cyprium, "metal of Cyprus", later shortened to Cuprum. A number of countries, such as Chile and the United States, still have sizeable reserves of the metal which are extracted through large open mines. Nevertheless, the price of copper is still rising rapidly—quintupling since 1999—largely due to increased demand.

The Egyptians found that adding a small amount of tin made the metal easier to cast, so bronze alloys were found in Egypt almost as soon as copper was found. Use of copper in ancient China dates to at least 2000 BC. By 1200 BC excellent bronzes were being made in China. Note that these dates are affected by wars and conquest, as copper is easily melted down and reused. In Europe, Oetzi the Iceman, a well-preserved male dated to 3200 BC, was found with a copper-tipped axe whose metal was 99.7% pure. High levels of arsenic in his hair suggests he was involved in copper smelting. Brass, an alloy of zinc and copper, was known to the Greeks but first used extensively by the Romans.

There are copper and bronze artifacts from Sumerian cities that date to 3000 BC, and Egyptian artifacts in copper and copper alloyed with tin nearly as old. In one pyramid, a copper plumbing system was found that is 5000 years old.

In Greek times, the metal was known by the name chalkos (χαλκός). Copper was a very important resource for the Romans and Greeks. In Roman times, it became known as aes Cyprium (aes being the generic Latin term for copper alloys such as bronze and other metals, and Cyprium because so much of it was mined in Cyprus). From this, the phrase was simplified to cuprum and then eventually Anglicized into the English copper. Copper was associated with the goddess Aphrodite/Venus in mythology and alchemy, owing to its lustrous beauty, its ancient use in producing mirrors, and its association with Cyprus, which was sacred to the goddess. In alchemy the symbol for copper was also the symbol for the planet Venus.

Copper, as native copper, is one of the few metals to naturally occur as an uncompounded mineral. Copper was known to some of the oldest civilizations on record, and has a history of use that is at least 10,000 years old. A copper pendant was found in what is now northern Iraq that dates to 8700 BC. By 5000 BC, there are signs of copper smelting, the refining of copper from simple copper compounds such as malachite or azurite. Among archaeological sites in Anatolia, Çatal Höyük (~6000 BC) features native copper artifacts and smelted lead beads, but no smelted copper. But Can Hasan (~5000 BC) had access to smelted copper; this site has yielded the oldest known cast copper artifact, a copper mace head.

Copper smelting appears to have been developed independently in several parts of the world. In addition to its development in Anatolia by 5000 BC, it was developed in China before 2800 BC, in Central America around 600 AD, and in West Africa around 900 AD.[2]

The use of bronze was so pervasive in a certain era of civilization that it has been named the Bronze Age. The transitional period in certain regions between the preceding Neolithic period and the Bronze Age is termed the Chalcolithic, with some high-purity copper tools being used alongside stone tools.

Copper mining in Britain and the United States
Copper has been mined for many centuries. By 2000 BC, Europe was using copper-tin alloys or ‘bronze’. The Bronze Age is taken as 2500 BC to 600 BC.

British Isles
During the Bronze age, copper was mined in the British Isles mainly in the following locations:
* South West County Cork
* West Wales (e.g. Cwmwystwyth)
* North Wales (e.g. Great Orme)
* Anglesey (Parys Mountain)
* Cheshire (Alderley Edge)
* The Staffordshire Moorlands (e.g. Ecton Mine)
* Isle of Man, which is between England and Northern Ireland

At Great Orme in North Wales, such working extended for a depth of 70 metres.[3] At Alderley Edge in Cheshire, carbon dates have established mining at around 2280 - 1890 BC (at 95% probability).[4]

United States
Copper mining in United States began with marginal workings by Native Americans and some development by early Spaniards. Europeans were mining copper in Connecticut as early as 1709. Westward movement also brought an expansion of copper exploitation with developments of significant deposits in Michigan and Arizona during the 1850's and then in Montana during the 1860's.

Copper was mined extensively in Michigan's Keweenaw Peninsula with the heart of extraction at the productive Quincy Mine. Arizona had many notable deposits including the Copper Queen in Bisbee and the United Verde in Jerome. The Anaconda in Butte, Montana became the nation's chief copper supplier by 1886.

Copper has also been mined in Utah, Nevada and Tennessee, among other locations.

You could get more information from the link below...

2006-10-21 22:06:29 · answer #1 · answered by catzpaw 6 · 0 0

Responses saved. The final score is 10/10 (100%). Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Revolutionary leader Ché Guevara was killed while fighting in which nation? (1 point) (0 pts) Argentina (0 pts) Cuba (1 pt) Bolivia (0 pts) Bora Bora 1 /1 point 2. The Sandanistas lost power to ____ after free elections in 1990. (1 point) (0 pts) José Duarte (1 pt) Violeta Barrios de Chamorro (0 pts) Manuel Noriega (0 pts) the Somoza regime 1 /1 point 3. Working-class people supported Juan Perón because he (1 point) (0 pts) ended social reforms and a national health care program. (1 pt) encouraged the growth of labor unions and increased job benefits. (0 pts) turned landed estates into peasant-led cooperative farms. (0 pts) increased the tax burden of the wealthy upper class. 1 /1 point 4. The military conflict over the Falkland Islands in 1982 involved (1 point) (0 pts) the United States and Panama. (0 pts) the United States and Argentina. (1 pt) Great Britain and Argentina. (0 pts) Great Britain and Brazil. 1 /1 point 5. As an art form, magic realism is characterized by (1 point) (0 pts) the exploration of subjects generally considered taboo. (0 pts) an interest in Latin American music. (1 pt) a combination of realistic events and fantastic backgrounds. (0 pts) a belief that the people of Latin America will ultimately overcome adversity. 1 /1 point 6. _____ overthrew the government of Nicaragua, but later lost control of the country in free elections. (1 point) (0 pts) Manuel Noriega (1 pt) the Sandinistas (0 pts) the Freedom Party (0 pts) the Somoza family 1 /1 point 7. The goal of the Peruvian guerilla group Shining Path was to (1 point) (0 pts) receive support from the United States. (1 pt) smash authority and create a classless society. (0 pts) nationalize many foreign-owned companies. (0 pts) take possession of the Falkland Islands. 1 /1 point 8. All of the following are associated with Salvador Allende's regime EXCEPT (1 point) (0 pts) nationalization of industries. (0 pts) higher wages for industrial workers. (0 pts) takeovers of estates by radical workers. (1 pt) harmony with the owners of the copper industry. 1 /1 point 9. After World War II, many Latin American nations suffered economic difficulties because of (1 point) (1 pt) overdependence on foreign nations and a dramatic increase in population. (0 pts) oppressive military governments and ongoing wars between nations. (0 pts) political separation from the U.S. and ongoing wars between nations. (0 pts) the rise of the drug lords and a dramatic decrease in population. 1 /1 point 10. Latin American ____ were strongly influenced by international styles after World War II. (1 point) (0 pts) art and music (0 pts) theater and drawing (1 pt) art and architecture (0 pts) theater and architecture 1 /1 point The final score is 10/10 (100%).

2016-05-22 08:40:16 · answer #2 · answered by Anonymous · 0 0

Check
http://www.rameria.com/inglese/history.html

good luck

2006-10-21 14:43:28 · answer #3 · answered by Rodolfo Max 4 · 0 0

http://www.copper.org

2006-10-21 15:02:50 · answer #4 · answered by alyskim 3 · 0 0

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