Copper

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Copper
Copper (, ) is a chemical element in the periodic table that has the symbol Cu and atomic number 29. It is a ductile metal with excellent electrical conductivity, and finds extensive use as an electrical conductor, heat conductor, as a building material, and as a component of various alloys. Copper is an essential trace nutrient to all high plants and animals. In animals, including humans, it is found primarily in the bloodstream, as a co-factor in various enzymes, and in copper-based pigments. However, in sufficient amounts, copper can be poisonous and even fatal to organisms.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 such as IraqChinaEgyptGreece and the Sumerian cities all have early evidence of using copper. 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 sizable reserves of the metal which are extracted through large open pit mines. Nevertheless, the price of copper has risen rapidly, increasing 500 rom a 60-year low in 1999, largely due to increased demand. The Earth has an estimated 61 years of copper reserves remaining.
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Copper
Cette page d’ répertorie les différents sujets et articles partageant un même nom.  Copper, cuivre en anglais, peut faire référence à :Copper, une bière produite par la brasserie Schutzenberger,Copper, un film de 1915, et aussi :Copper River, une rivière d'Alaska, à l'embouchure de laquelle se trouve la ville de Cordova,Copper Mountain,
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Cuivre
Le cuivre est un élément chimique de symbole Cu et de numéro atomique 29.
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Amiga Copper
Der Copper ist einer der Koprozessoren im Chipsatz des Amiga-Computers von Commodore. Seine grundlegendste Aufgabe ist, bei Beginn eines Bildaufbaus die Videologik des Chipsatzes zu initialisieren, damit bei jedem Bildaufbau die gleichen Speicherbereiche (für ein Standbild) dargestellt werden. Der Copper ist so konstruiert, dass an bestimmten Stellen des Bildschirms dynamische Umkonfigurationen der Videologik vorgenommen werden können und so die Anzeige flexibler gestaltet werden kann.
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Kupfer
Kupfer (lat. ) ist ein chemisches Element mit dem Symbol Cu und der Ordnungszahl 29. Es ist ein Metall der 4. Periode in der 11. Gruppe im Periodensystem. Der lateinische Name cuprum ist abgeleitet von aes cyprium „Erz von der Insel Zypern“, wo im Altertum Kupfer gewonnen wurde.Kupfer ist als relativ weiches Metall gut formbar und zäh. Als hervorragender Wärme- und Stromleiter findet Kupfer vielseitige Verwendung und zählt auch zur Gruppe der Münzmetalle.Als schwach reaktives Schwermetall gehört Kupfer zu den Edelmetallen.
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Miedz
Miedź (Cu, łac. cuprum) – pierwiastek chemiczny, z grupy metali przejściowych układu okresowego. Nazwa miedzi w języku angielskim pochodzi od Cypru, gdzie w starożytności odkryto ten metal. Początkowo nazywano go metalem cypryjskim (łac. cyprum aes), a następnie cuprum. Posiada 26 izotopów z przedziału mas 55-80. Trwałe są tylko dwa: 63 i 65.
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Rame
Il rame è l'elemento chimico di numero atomico 29. Il suo simbolo è Cu.Con ogni probabilità il rame è il metallo che l'umanità usa da più tempo: sono stati ritrovati oggetti in rame datati 8700 a.C.. Gli antichi greci lo chiamavano Chalkos, da cui deriva il prefisso calco- adottato dai mineralogisti e dai chimici moderni per designare alcuni minerali contenenti rame. Il suo nome italiano invece deriva dal latino parlato aramen (parola già attestata nel 950) per il tardo aeramen, un derivato della voce latina aes che significa rame, bronzo ed è un nome conservato in altre lingue di origine indoeuropea. Solo più tardi sostituito (Plinio) dalla parola cuprum = rame, bronzo di Cipro. È da questa parola, infatti, che deriva il simbolo chimico dell'elemento, perché in epoca romana la maggior parte del rame era estratta dall'isola di Cipro, realtà che veniva sottolineata con il termine aes Cyprium = rame, bronzo di Cipro. In epoca romana infatti non si faceva alcuna differenza tra il rame puro e il bronzo, la sua lega più importante.
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