Aluminum Essays - Aluminium Alloys, Aluminium, Aluminum Wire

Aluminum Essays - Aluminium Alloys, Aluminium, Aluminum Wire Aluminum Aluminum is one of a number of soft metals that scientists call poor metals. It can be shaped and twisted into any form. It can be rolled into thick plates for armored tanks or into thin foil for chewing gum wrappers. It may be drawn into a wire or made into cans. Aluminum is a generally popular metal because it does not rust and it resists wear from weather and chemicals. (Bowman, 391) Aluminum is an element. Its atomic number is thirteen and its atomic weight is usually twenty-seven. Pure aluminum melts at 660.2C and boils at 2500C. Its density is 2.7 grams per cube centimeter. Aluminum is never found uncombined in nature. (Bowman, 391) Aluminum is a very useful metal that is light, easy to shape and can be strong. This makes aluminum one of the most used metals in the world, right behind iron and steel. (Geary, 185) In its pure state, aluminum is quite weak compared to the other metals. However, its strength can be greatly increased by adding small amounts of alloying elements, heat-treating, or cold working. Only a small percentage of aluminum is used in its pure form. It is made into such items as electrical conductors, jewelry, and decorative trim for alliances and cars. A combination of the three techniques has produced aluminum alloys that, pound for pound, are stronger than structural steel. Some common metals used in alloys for aluminum are copper, magnesium and zinc.(Walker, 31) The added elements give the aluminum strength and other properties. (Newmark, 41) Aluminum is one of the lightest metals. It weighs about 168.5 pounds per cubic foot, about a third as much as steel which weighs 487 pounds per cubic foot. (Neely, 214) As a result, aluminum has replaced steel for many uses. For example, some parts of airplanes, automobiles and trucks are now made of aluminum rather than steel because lighter vehicles use less fuel, making the aluminum alloy container much cheaper to move. (Geary, 185) To make aluminum alloys even lighter, the lightest metal, lithium, is added to aluminum. Products packed in aluminum cost less to ship because the containers weigh less than those made with other metals. The same is true with automobiles the engine block, drive shafts, radiator, wheels and body panels can all be made of aluminum alloys. The car thus weighs less, and, again, the fuel consumption improves. Unfortunately, the price also increases, which is why cars and trucks today are still made of mostly steel. (Advantages to Aluminum) Although pure aluminum is weak, certain aluminum alloys are as strong as steel. Such alloys are used in airplanes, automobiles, guardrails along highways, and in other products that require strength. Aluminum alloys loose some strength at high temperatures. Unlike many other metals, however, they get stronger at extremely low temperatures. Aluminum alloys are widely used in equipment for processing, transporting and storing liquified natural gas, which can have a temperature of -260 F. (Walker, 36) Some metals wear away if exposed to oxygen, water, or various chemicals. When exposed to them a chemical reaction causes most metals to rust or become discolored. When aluminum reacts with oxygen, however, the metal forms an invisible layer of a chemical compound called aluminum oxide. This layer protects aluminum from corrosion by oxygen, water and many chemicals. It makes aluminum especially valuable for use outdoors where the metal is exposed to, and must resist the effects of wind, rai n and pollution. (Knapp, 9) Aluminum is a good conductor of electricity. Aluminum and copper are the only common metals suitable for use as electrical conductors. Aluminum conducts electricity two thirds as well as copper; however aluminum weighs a third as much. (Aluminum Facts) Aluminum wire can carry the same amount of electric power as copper wire with a lot less weight. In addition, aluminum can be drawn into wires more easily than copper. Today, more than nine out of every ten miles of large- diameter electrical cable are made from aluminum, rather than traditional copper. This is because aluminum is cheaper and, lighter requiring less pylons to hold up the cables. (Advantages to Aluminum) Like all metals, aluminum conducts heat and can be used either to carry or

Free Essays on A Retelling Of Noahs Ark

A Retelling of Noah’s Ark Timothy Findley’s Not Wanted on the Voyage is a creative retelling of the biblical story of Noah and his wife and their journey on the ark. He successfully creates a parody, a humorous form of social commentary and literary criticism in which one work imitates another, by taking the ancient tale of Noah’s ark and acquainting the reader with what happened in between the lines (www.dictionary.reference.com). He constructs a world that offers many intriguing possibilities to the accepted tale that in a sense create many thought provoking ideas and statements of how the world is and really was. The book is divided into four parts. Book One, the arrival and death of the novel’s God, Book Two details the building of the ark, Book Three the flood-associated trials, and Book Four the conclusion of the novel. Findley successfully develops his parody of Noah’s Ark through elements of exaggeration, shock, and ridicule. In the novel, authority is highly exaggerated with Noah’s authoritarian, hierarchical view of the world (Bailey 145). Noah’s severe ways are exercised greatly with his treatment of women. According to Noah women exist to serve the needs of God as well as himself and his sons (Bailey 132). Mrs Noyes, Hannah and Mottyl may have opinions and desires of their own but they must be subordinated to the authority of their husbands, fathers and lovers. Noah demonstrates his ill treatment of women when he kills Japeth’s brother who is born an ape-child, despite Mrs. Noyes’ pleas to let the baby live. Noah treats his wife with even more disingenuousness when he decides that his wife will live below the ark and she has no choice but to go. Noah is very cold-hearted and will treat his own wife horribly as long as his civilized paternal hierarchy is in order. Clearly, Noah’s authoritative ways are demonstrated through his nasty treatment of his wife. Noah’s passion for authority is als... Free Essays on A Retelling Of Noah's Ark Free Essays on A Retelling Of Noah's Ark A Retelling of Noah’s Ark Timothy Findley’s Not Wanted on the Voyage is a creative retelling of the biblical story of Noah and his wife and their journey on the ark. He successfully creates a parody, a humorous form of social commentary and literary criticism in which one work imitates another, by taking the ancient tale of Noah’s ark and acquainting the reader with what happened in between the lines (www.dictionary.reference.com). He constructs a world that offers many intriguing possibilities to the accepted tale that in a sense create many thought provoking ideas and statements of how the world is and really was. The book is divided into four parts. Book One, the arrival and death of the novel’s God, Book Two details the building of the ark, Book Three the flood-associated trials, and Book Four the conclusion of the novel. Findley successfully develops his parody of Noah’s Ark through elements of exaggeration, shock, and ridicule. In the novel, authority is highly exaggerated with Noah’s authoritarian, hierarchical view of the world (Bailey 145). Noah’s severe ways are exercised greatly with his treatment of women. According to Noah women exist to serve the needs of God as well as himself and his sons (Bailey 132). Mrs Noyes, Hannah and Mottyl may have opinions and desires of their own but they must be subordinated to the authority of their husbands, fathers and lovers. Noah demonstrates his ill treatment of women when he kills Japeth’s brother who is born an ape-child, despite Mrs. Noyes’ pleas to let the baby live. Noah treats his wife with even more disingenuousness when he decides that his wife will live below the ark and she has no choice but to go. Noah is very cold-hearted and will treat his own wife horribly as long as his civilized paternal hierarchy is in order. Clearly, Noah’s authoritative ways are demonstrated through his nasty treatment of his wife. Noah’s passion for authority is als...

The Motives, Expectations And Preparedness Of Accounting Students Research Proposal

The Motives, Expectations And Preparedness Of Accounting Students While Going For Higher Education - Research Proposal Example Therefore, respective governments have always tried to implement policies which help in making their people informed citizens. But at the same time, professional education helps in training people for practical and training work so that they can independently live their life and thus help their governments. Civic engagement happens to be a prime factor for smooth functioning of any government. The MacFarlane Report (1992), described the nature of learning in higher education as depending on the ability to transform the knowledge presented - the ability to relate the knowledge to what is already known, to make personal sense of it, and so be able to use it in novel contexts. This study is therefore an effort to find out what are the key motives for students for taking 'accounting as a subject for higher studies. An effort would also be made to find out how the students prepare themselves for successful completion of the course in order to meet their expectations. Today we are in an era dominated by the technological advancements in almost all areas of our life. Accounting is one such field which has evolved over the years in line with the changes taking place around us. Accounting as such is used for maintaining the account of quantitative information about the transactions involving finances and resources. In other words it is the process of identifying, measuring, handling and communicating the financial information about different economic entities for being used by the concerned parties. How this information is used by the company and the persons handling the information helps in classifying it in managerial and financial accounting. Byrne and Flood (2005) in their study on similar lines found out that 'majority of the students enter higher education with laudable motives, feeling well prepared and reasonably confident about their success, but a number the students enrol themselves into such courses even with worries of low expectations. Today education can be imparted from anywhere to any part of the world, thanks to the advancements in Information Technology. The process can be simultaneous as well as at the user's convenience, depending upon the urgency and requirements. Therefore, besides the traditional campus based education, now we can also make use of e-campuses. This helps in going for higher education even after the individual starts working in the industry. In such cases the motive will surely be an expectation of reaching to the higher echelons in the hierarchy. Deci et al. (1991) came out with the suggestion that the 'extrinsic motivation' for undertaking a decision can be divided into three discrete, externally-stimulated regulatory processes, namely identified, interjected, and external regulation. Some of the earlier studies clearly identify that financial rewards, job availability, job security, opportunities for promotion and flexible career options are some of the motives which drive students towar ds pursuing higher studies in accounts and finances. When technology comes out with newer versions of the facts and figures at regular intervals, the students too are required to have updated information about the evolving truth and the process that has brought about the changes. For example, the process of accounting has undergone a major change with the use of computers and IT. In fact such changes also find a reflection in the way accounts books are maintained. New accounting standards like International Financial