At the same time, copper, usually in its bronze form, had an important use as an element of art in Antiquity. Even today statues of the Roman emperors, made from bronze, can be admired in the museums of Rome. This trend continued 1,000 years later, in the Renaissance period. Artists like Donatello used bronze to cast their statues. Even earlier than that, copper and bronze had been used for the doors of churches and baptisteries, as is the wonderful example of the Baptistery of Florence.
Again, diversification of man's activities implied new uses for copper. Ships were protected from the water erosion, as well as from potential rocks and other obstacles, with copper used on their hulls. With the discovery of electricity and its main laws, copper began to be used extensively as an excellent conductor, a use still valid today in many parts of the world.
Copper is generally widespread around the world, although, as is the case with many other resources, the needs will mean that the supplies will end at some point. This is reflected in the increasing price of copper on the open market, with levels reaching almost $8 per kilogram of copper. On the other hand, copper is recyclable, which is a great advantage and which means that this resource can actually be used for a longer period of time. It seems that in the U.S., for...
Herbert Reed saw these bronze sculptures as "apparitions," or "primordial images projected from the deepest level of the unconscious, and they illustrate the truth that the artist is essentially the instrument of unconscious forces" (Mitchinson 1998, p. 246). Others see the uprights as Moore's reflection of World War I, or bombs cut in half lengthways to show their internal workings, giving a long, smooth and rounded shape at the
Lactose if one of the major components of milk, and plays a crucial role in human development. This paper will examine the structure, function, physical properties, chemical properties, reactions, and everyday uses of lactose. In addition, a discussion of the common issue of lactose intolerance in humans is included. A natural sugar found in milk, lactose is likely one of the most commonly identifiable of all milk ingredients (except perhaps calcium).
Ken Kesey One Flew Over the Cuckoo's Nest by Ken Kesey was written after its author worked as an orderly in a psychiatric ward. Yet the novel also demonstrates significant research that manages to elevate it to the level of a serious critique. Published in 1962, One Flew Over the Cuckoo's Nest is thus an artistic contribution to that decade's emerging critique of societal handling of mental illness, a loose affiliation
Chile Now one of the most prosperous nations in Latin America, Chile has undergone a series of traumatic transformations during the course of its lengthy history. Indigenous Chilean people have survived attacks from both Incas and Spanish invaders, and the latter half of the twentieth century saw one of the most brutal military regimes in recent memory. A narrow strip of land in south-western South America, Chile sits directly south of
We also know that they engaged in robust trade, both domestic and foreign and even over the Hindu Kush and into the Persian Gulf areas. Between 1800-1700 BC, though, most of the cities were abandoned, perhaps from environmental reasons (deforestation, etc.) and perhaps from invasion from Central Asia (Bentley, et.al., pp. 49-50). By 3000 BCE, Ancient China had developed larger regional states and political/social units called dynasties. Each succeding dynasty
light does not turn on one must take several considerations in determining the cause of the situation. In order to figure out why the light is not turning on, analysis of the situation through the scientific method may be utilized. The first step is to pose the question of why the light does not turn on. Research must then be undertaken to determine the cause. In this instance, there
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