Friday, May 15, 2020
The American Dream Conspiracy in Death of a Salesman Essay
Arthur Millerââ¬â¢s Death of a Salesman tells the story of the failure of a salesman, Willy Loman. Although not all Americans are salesmen, most of us share Willyââ¬â¢s dream of success. We are all partners in the American Dream and parties to the conspiracy of silence surrounding the fact that failures must outnumber successes.(Samantaray, 2014) Miller amalgamates the archetypal tragic hero with the mundane American citizen. The result is the anti-hero, Willy Loman. He is a simple salesman who constantly aspires to become great. Nevertheless, Willy has a waning career as a salesman and is an aging man who considers himself to be a failure but is incapable of consciously admitting it. As a result, the drama of the play lies not so much inâ⬠¦show more contentâ⬠¦To some extent she acknowledges Willys aspirations but, naively, she also accepts them. Consequently, Linda is not part of the solution but rather part of the problem with this dysfunctional family and their inability to face reality. In restraining Willy from his quest for wealth in the Alaska, the New Continent, ironically the only realm where the dream can be fulfilled, Linda destroys any hope the family has of achieving greatness. Even so, Linda symbolically embodies the plays ultimate value: love. In her innocent love of Willy, Linda accepts her husbands fa lsehood, his dream, but, in her admiration of his dream, she is lethal. Linda encourages Willy and, in doing so, allows her sons, Biff and Happy, to follow their fathers fallacious direction in life.(Griffin, 1996) Willys close friend Charlie on the other hand, despite his seemingly ordinary lifestyle, enjoys far better success compared to the Lomans. Charlie differs to his friend considerably: he is financially secure whereas Willy can barely afford to pay the next gas bill. Similarly, Charlie never indoctrinated his son, Bernard, with the same enthusiasm as Willy. Subsequently, Charlie stands for different beliefs to Willy and, ironically, ends up far more successful. He is a voice of reason for his friend but is only useful if Willy follows his advice. Instead, Willys proud and stubborn nature ensures that he will never accept Charlies manyShow MoreRelated Failure of the America Dream in Arthur Millerââ¬â¢s Death of a Salesman1097 Words à |à 5 PagesFailure of the America Dream in Arthur Millerââ¬â¢s Death of a Salesmanà à à à à à Arthur Millerââ¬â¢s Death of a Salesman examines Willy Lowmanââ¬â¢s struggle to hold on to his American Dream that is quickly slipping from his grasp. As Americans, we are all partners in the ââ¬Å"dreamâ⬠and Willyââ¬â¢s failure causes each of us anxiety since most of us can readily identify with Willy. Most Americans can readily identify with Willy. As children, our minds are filled with a ââ¬Å"marketing orientationâ⬠as soon as weRead MoreHamartia in Oedipus Rex and Death of a Salesman834 Words à |à 3 PagesHamartia in Oedipus Rex and Death of a Salesman Hamartia is defined as a fatal flaw leading to the downfall of a tragic hero. Aristotle defines a tragic hero to be a man ââ¬Å"who is not completely good and just, whose misfortune is brought out not by vice or immorality, but by some error or weakness.â⬠The three key requirements of Aristotle in regards to a tragic hero are; a high social standing, goodness or moral excellence, or error committed by the hero in unawareness or ignorance. Two quality examplesRead MoreWall Street14268 Words à |à 58 Pages1 Wall Street (Drama) ( 1987) à © 2000 by Raymond Weschler Major Characters Bud (Buddy ) Foxâ⬠¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦.Charlie Sheen A young, smart and very motivated stock broker (seller) who dreams of making millions of dollars. Gordon Gekkoâ⬠¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦.Michael Douglas A very rich, ruthless and immoral stock trader and ââ¬Å"corporate raider,â⬠which is a person who buys and sells companies, often with horrible results for company workers. Darien Taylorâ⬠¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Ã¢â¬ ¦Daryl Hannah A young and beautiful interiorRead MoreFrauds in Insurance11958 Words à |à 48 Pagesto fraudulently obtain payment from an insurer. Insurance fraud poses a very significant problem, and governments and other organizations are making efforts to deter such activities. On the one hand, human life is subject to various risksââ¬ârisk of death or disability due to natural or accidental causes. Humans are also prone to diseases, the treatment of which may involve huge expenditure. On the other hand, property owned by man is exposed to various hazards, natural and man-made. It is importantRead MoreMarketing Mistakes and Successes175322 Words à |à 702 PagesD program to do so. With its search engine, it raised advertising to a new level: targeted advertising. In so doing, it spawned a host of millionaires from its rising stock prices and stock options and made its two founders some of the richest Americans, just under Bill Gates and Warren Buffett. How did they do it? Starbucks is also a rapidly growing new firmââ¬ânot as much as Google, but still greatââ¬âand a credit to founder Howard Schultzââ¬â¢s vision of transforming a prosaic product, coffee, intoRead MoreDeveloping Management Skills404131 Words à |à 1617 PagesRESPONDENTS â⬠¢ FOCUS â Luthans, Rosenkrantz, and Hennessey (1985) â⬠¢ 52 managers in 3 organizations â⬠¢ Participant observation of skills demonstrated by most effective versus least effective managers â Curtis, Winsor, and Stephens (1989) â⬠¢ 428 members of the American Society of Personnel Administrators in the United States â⬠¢ (1) Skills needed to obtain employment â⬠¢ (2) Skills important for successful job performance â⬠¢ (3) Skills needed to move up in the organization Employment Verbal communication Listening
Wednesday, May 6, 2020
Revised Scholarship, Practice, and Leadership Essay
Revised Scholarship, Practice, and Leadership Essay Information literacy is essential for leaders, scholars and researchers to help them lead and build the needed skills academically and within their workplace environment. Resources for information literacy are constantly growing to meet todays society needs. To some leaders and scholars, this type of convenience is more of a blessing while other who cannot understand the process see it as a hindrance. The discussions of this paper is focused on leaders without a scholarly background, the effects of leadership skills on a practitioner, the role that information literacy material is on scholars, and the relationship that I have with information literacy and the SPL Model. An additionalâ⬠¦show more contentâ⬠¦Information competence is designed to help students to recognize, acquire, evaluate, organize, and interpret the information effectively. Leadership is considered a characteristic of art and science; shipyard leaders must utilize these tools to develop their leadership tact ic on observation, studying, researching, and developing wisdom. If these characteristics are not implemented then arrogance is produced along with blaming others for their outcomes. Shipyard leaders can learn, develop and increase their intelligence with the help of higher education. The Effects Of Leadership Skills On A Practitioner Effective leadership produces changes and movement within the shipyard industry; if managers and supervisors are not equipped with leadership skills then, their organization will crumple. A large volume of failure is placed in the organization visions, their strategies, goals, and their subordinates will become empowered. Strategic leadership is the best leadership style to use within the shipyard industries to help maintain and better the organization. If no one is equipped with this knowledge then, the workers will not take the initiative to improve their assigned work. Leaders will not look ahead and analyze the completed tasks set within a specific period, and leaders will have no sense of adaptability and growth-orientation. Shipyard leaders with no leadership skill will lack in experience onShow MoreRelatedAma: Marketing and Definition5314 Words à |à 22 Pagesissues with the 2004 definition that had been identified by scholars contributing to the special section. They highli ght several positive qualities of the new definition and describe how these attributes have the capacity to enhance marketing scholarship and practice into the future. Keywords: marketing, definition, American Marketing Association n 2004, the American Marketing Association (AMA) issued a new official definition for the marketing field, one that modified and replaced the definition issuedRead MoreEssay about Management and Leadership in the Early Years3720 Words à |à 15 PagesThroughout this assignment a discussion will take place into the theories of leadership, whilst examining the role of managers within the context of the early years. A series of management competences will be evaluated, whilst investigating the notions of leadership and collaboration. Some theorists use the terms ââ¬Ëleadershipââ¬â¢ and ââ¬Ëmanagementââ¬â¢ reciprocally as if they are tantamount with one another, while others use them in a very purposeful sense to express that they are, in effect, rather differentRead More65 Successful Harvard Business School Application Essays 2nd Edition 147256 Words à |à 190 PagesGRIFFIN NEW YORK 65 SUCCESSFUL HARVARD BUSINESS SCHOOL APPLICATION ESSAYS, SECOND EDITION. Copyright à © 2009 byThe Harbus News Corporation. All rights reserved. Printed in the United States of America. For-information, address St. Martins Press, 175 Fifth Avenue, New York, N.Y. 10010. www.stmartins.com Library of Congress Cataloging...in..Publication Data 65 successful Harvard Business -School application essays : with analysis by the staff of The Harbus, the Harvard Business School newspaperRead MorePaulino J. Garcia Memorial Research and Medical Center Organizational Behavior Study6602 Words à |à 27 PagesOF BEDS | C.A. 3114 | 1930 | 30 | | 1935 | 75 | | 1959 | 100 | | 1960 | 125 | | 1961 | 150 | | 1965 | 225 | R.A. 5141 | 1967 | 400 | Services Offered *See appendix for Services offered Additional Company Information Leadership Style à à à à à à à à à à à à à à Leadership can be classified in types such as democratic, autocratic, laissez-faire and other types but the Hospital Management exercises a participatory kind of management. Itââ¬â¢s EXECOM is composed of the Medical Center Chief; three main divisionRead MoreOrganizational Behaviour Analysis28615 Words à |à 115 PagesORGANISATIONAL ANALYSIS: Notes and essays for the workshop to be held on 15th - 16th Novemeber 2007 at The Marriot Hotel Slough Berkshire SL3 8PT Dr. Lesley Prince, C.Psychol., AFBPsS University of Birmingham November 2007 à © Dr. Lesley Prince 2007. Organisational Analysis: Notes and Essays Page i Page ii Please do not attempt to eat these notes. CONTENTS Introduction to the Workshop Topics And Themes The Nature and Scope of Organisation Theory Levels of Analysis The MetaphoricalRead MoreCollective Strategy Development6676 Words à |à 27 Pagesnot-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. John Wiley Sons is collaborating with JSTOR to digitize, preserve and extend access to Strategic Management Journal. http://www.jstor.org Strategic Management JournalRead MoreResearch Paper Marketing Plan12383 Words à |à 50 Pagesin Nursing (MSN) with a focus on the Clinical Nurse Leader (CNL). The CNL oversees the lateral integration of care for a distinct group of patients and may actively provide direct patient care in complex situations..à The CNL puts evidence-based practice into action to ensure that patients benefit from the latest innovations in care delivery. Xavier University School of Nursing wants to enroll at least 20 students each fall in their new MSN CNL program with 30% being from a minority and/or disadvantagedRead MoreChina in Africa Essay20116 Words à |à 81 PagesFahamu, 2007. Scholarships Travel scholarships Under this scheme some 30ââ¬â40 scholars associated with Nordic universities, colleges and research institutions are sponsored annually for research trips to Africa. Next application deadline: 15 January 2008 African Guest Researchersââ¬â¢ Scholarship Programme This scholarship programme is directed at scholars in Africa, engaged in research on the African continent. Female researchers are especially encouraged to apply for these scholarships. Next applicationRead MoreMarxism and Class, Gender and Race: Rethinking the Trilogy5203 Words à |à 21 PagesThis practice became popular in early feminist literature: Marx and Marxists were criticized for not developing an in-depth analysis of the oppression of women, their economism, class reductionism, and sex blind categories of analysis. Soon after it became common place to assert that Marxism was also at fault for neglecting race, demography, ethnicity, the environment and practically everything that mattered to the new social movements in the West. As the movements died, scholarship informedRead MoreLibrary Management204752 Words à |à 820 PagesMotivate? . . . . . . . . . . . . . . . . . 316 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 14ââ¬âLeadership. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321 What Is Leadership? . . . . . . . . . . . . . . . . . . . . . . . . . . 322 Managers and Leaders . . . . . . . . . . . . . . . . . . . . . . . . 322 Leadership Qualities . . . . . . . . . . . . . . . . . . . . . . . . . . 323 Exercising Power . . . . . . . . . . . . . . . . . . . . . . .
Tuesday, May 5, 2020
AP Euro Notes on Renaissance Essay Example For Students
AP Euro Notes on Renaissance Essay The balance of power among the Italian associates 1 . Italy had no political unity; it was divided into associates such as Milan, Venice, and Florence, the Papal States, and a kingdom of Naples in the south. 2. The political and economic competition among the associates prevented centralization of power. 3. Shifting alliances among the associates led to the creation of permanent ambassadors. 4. After 1494 a divided Italy became a European battleground. Intellectual hallmarks of the Renaissance A. Many, like the poet and humanist Patriarch, saw the fourteenth century as a new olden age and a revival of ancient Roman culture. B. Individualism 1 . Literature specifically concerned with the nature of individuality emerged. 2. Renaissance people believed in individual will and genius. C. Humanism 1 . Italians collected ancient manuscripts and monuments, and copied the ancient Roman lifestyle. 2. The study of the classics led to humanism, an emphasis on human beings. A. Humanists sought to understand human nature through a study of pagan and classical authors and Christian thought. B. The humanist writer Pico Della Miranda believed that there were no limits to what human beings could accomplish. . Ancient Latin style was considered superior to medieval Latin. D. Secular spirit 1 . Secularism means a concern with materialism rather than religion. 2. Unlike medieval people, Renaissance people were concerned with money and pleasure. A. In On Pleasure, Lorenz Villa defended the pleasure of the senses as the highest good. B. In the Dodecahedron, Vacation portrayed an acquisitive and worldly society. 3. The church did little to combat secularism; in fact, many popes were Renaissance patrons and participantsand the church even gave up its opposition to usury. Art and artists achievements, led by Florence and Rome. B. Art and power 1 . In the early Renaissance, powerful urban groups commissioned works of art, which remained overwhelmingly religious. 2. In the later fifteenth century, individuals and oligarchs began to sponsor works of art as a means of glorifications. 3. Wealthy people began to spend less on warfare and more on art and architecture. A. At first the bed chamber room was the most important, but later many other rooms were even more decorated. B. The homes private chapel was the most elaborate and expensive. 4. As the century advanced, art became more and more secular, and lassie subjects became popular. A. The style of art changed in the fifteenth century. B. The individual portrait emerged as a distinct genre. C. Painting and sculpture became more naturalistic and realistic, and the human body was glorified, as in the work of the sculptors Donated and Michelangelo. D. A new international style emphasized color, decorative detail, and curvilinear rhythms. E. In painting, the use of perspective was pioneered by Brucellosis and Della Francesca. C. The status of the artist 1 . The status of the artist improved during the Renaissance; most work was done by commission from a prince. . The creative genius of the artist was recognized and rewarded. 3. The Renaissance was largely an elitist movement; Renaissance culture did not directly affect the middle classes or the urban working class. 0 Social change of the Renaissance A. Education and political thought 1 . Humanists were interested in education, particularly the training of rulers, and moral behavior. A. Verger wrote a treatise on education that stressed the teaching of history, ethics, and rhetoric (public speaking). B. Castigations The Courtier, which was widely read, described the model Renaissance gentleman as a man of many Allens, including intellectual and artistic skills. C. Machiavellian The Prince described how to acquire, maintain, and increase political power. D. Machiavelli believed that the politician should manipulate people and use any means to gain power. E. Machiavelli did not advocate amoral behavior but believed that political action cannot be governed by moral considerations. B. The printed word 1. The invention in 1455 of movable type by Gutenberg, Fuss, and Suchà ¶offer made possible the printing of a wide variety of texts. . Printing transformed the lives of Europeans by making propaganda possible, encouraging a wider common identity, ND improving literacy. C. Clocks 1. By about 1320 some Europeans had learned how to quantify time by use of the mechanical clockmeaning bells. 2. Clocks were important for understanding and controlling urban-economic life. D. Women and work in R enaissance society 1 . Most women married, were responsible for domestic affairs, and frequently worked outside the home. 2. Women worked in ship building, textiles, agriculture, as well as midwives and servants. 3. Important Artists Renaissance, Mannerism, BaroqueCharles VII ushered in an age of recovery and ended civil war. A. He expelled the English, reorganized the royal council, strengthened royal finances, reformed the justice system, and remodeled the army. B. He made the church subject to the state. 2. Louis XSL expanded the French state and laid the foundations of later French absolutism. C. England also suffered from disorder. . Feudal lords controlled the royal council and Parliament in the fifteenth century. 2. Between 1455 and 1471, the houses of York and Lancaster fought a civil war called the Wars of the Roses that hurt trade, agriculture, and domestic industry. . Edward IV and his followers began to restore royal power, avoided expensive war, and reduced their reliance on Parliament for funds. 4. The English Parliament had become a power center for the aristocracy but was manipulated by Henry VII into becoming a tool of the king. 5. Henry VII used the royal council and the cour t of Star Chamber to check aristocratic power. 6. Henry VII and his successors won the support of the upper middle class promoting their interest in money, trade, and stability. D. Spain turned against its own cultural diversity 1 . The reconstitutes was the centurions attempt to unite Spain and expel Muslims and Jews. 2. The marriage of Ferdinand and Isabella was the last major step in the unification and Christianization of Spain. A. Under their reign, however, Spain remained a loose confederation of separate states. B. They used the harnessed, or local police forces, to administer royal Justice. 3. Ferdinand and Isabella restructured the royal council to curb aristocratic power. . The church was also used to strengthen royal authority. 5. Ferdinand and Isabella completed the reconstitutes in 1492, but many Jews remained because they aided royal power. A. Jews were often financiers and professionals; many (called converses) had converted but were still disliked and distrusted. B. Needing a scapegoat during the Black Death, Spanish mobs killed many Jews. C. Ferdinand and Isabella revived the Inquisition and used its cruel methods to unify Spain and expel the Jews. 6. Spanish Christians rejected converses on the basis of raceout of fear of converses taking over public offices. Most Jews fled from Spain.
Saturday, April 11, 2020
Tuesday, March 10, 2020
Agriculture and Farm Innovations and Inventors
Agriculture and Farm Innovations and Inventors Farming and farm machinery were basically unchanged in Europe and its colonies for over a thousand years until the Agricultural Revolutionà beginning in the late 1700s. Modern agricultural machinery has continued to evolve. The threshing machine has given way to the combine, usually a self-propelled unit that either picks up windrowed grain or cuts and threshes it in one step. The grain binder has been replaced by the swather which cuts the grain and lays it on the ground in windrows, allowing it to dry before being harvested by a combine. Plows are not used nearly as extensively as before, due in large part to the popularity of minimum tillage to reduce soil erosion and conserve moisture. The disk harrow today is more often used after harvesting to cut up the grain stubble left in the field. Although seed drills are still used, the air seeder is becoming more popular with farmers. Todays farm machinery allows farmers to cultivate many more acres of land than the machines of yesterday. Famous Agriculturists Luther Burbank - The Idaho Potato: Horticulturalist patented many cropsGeorge Washington Carver: Agricultural chemist who diversified agriculture and promoted crop rotationJethro Tull: Inventor of the seed drill Milestones in Farm Machinery The following inventions and mechanization led to an agricultural revolution in America in its first two centuries as a nation. Corn picker:à In 1850, Edmund Quincy invented the corn picker.Cotton gin:à The cotton gin is a machine that separates seeds, hulls and other unwanted materials from cotton after it has been picked. Eli Whitney patented the cotton gin on March 14, 1794Cotton harvester:à The first cotton harvester was patented in the U.S. in 1850, but it was not until the 1940s that the machinery was widely used.à Mechanical cotton harvesters are of two types: strippers and pickers. Stripper harvesters strip the entire plant of both open and unopened bolls, along with many leaves and stems. The cotton gin is then used to remove unwanted material.ââ¬â¹Ã Picker machines, often called spindle-type harvesters, remove the cotton from open bolls and leave the bur on the plant. The spindles, which rotate on their axes at high speeds, are attached to a drum that also turns, causing the spindles to penetrate the plants. The cotton fibers are wrapped around the moistened spindles and then removed by a special device called a doffer; the cotton is then delivered to a large basket carried above the machine. Crop rotation: Growing the same crop repeatedly on the same land eventuallyà depletes the soil of different nutrients. Farmers avoided a decrease in soil fertility by practicing crop rotation. Different plant crops were planted in a regular sequence so that the leaching of the soil by a crop of one kind of nutrient was followed by a plant crop that returned that nutrient to the soil. Crop rotation was practiced in ancient Roman, African, and Asian cultures. During the Middle Ages in Europe, a three-year crop rotation was practiced by farmers rotating rye or winter wheat in year one, followed by spring oats or barley in the second year, and followed by a third year of no crops. In the 18th century, British agriculturalist Charles Townshend aided the European agricultural revolution by popularizing a four- year crop rotation with rotations of wheat, barley, turnips, and clover. In the United States, George Washington Carver brought his science of crop rotation to the farmers and save d the farming resources of the south. Grain elevator: In 1842, the first grain elevator was built by Joseph Dart.Hay cultivation:à Until the middle of the 19th century, hay was cut by hand with sickles and scythes. In the 1860s early cutting devices were developed that resembled those on reapers and binders; from these came the modern array of fully mechanical mowers, crushers, windrowers, field choppers, balers, and machines for pelletizing or wafering in the field. The stationary baler or hay press was invented in the 1850s and did not become popular until the 1870s. The pick up baler or square baler was replaced by the round baler around the 1940s.In 1936, a man named Innes, of Davenport, Iowa, invented an automatic baler for hay. It tied bales with binder twine using Appleby-type knotters from a John Deere grain binder. A Pennsylvania Dutchman named Ed Nolt built his own baler, salvaging the twine knotters from the Innes baler. Both balers did not work that well. According to The History of Twine, Nolts innovative patents pointed the way by 1939 to the mass production of the one-man automatic hay baler. His balers and their imitators revolutionized hay and straw harvest and created a twine demand beyond the wildest dreams of any twine manufacturer. Milking machine:à In 1879, Anna Baldwin patented a milking machine that replaced hand milking - her milking machine was a vacuum device that connected to a hand pump. This is one of the earliest American patents, however, it was not a successful invention. Successful milking machines appeared around 1870. The earliest devices for mechanical milking were tubes inserted in the teats to force open the sphincter muscle, thus allowing the milk to flow. Wooden tubes were used for this purpose, as well as feather quills. Skillfully made tubes of pure silver, gutta percha, ivory, and bone were marketed in the mid-19th century. During the last half of the 19th century, over 100 milking devices were patented in the United States.Plow:à John Deere invented the self-polishing cast steel plow - an improvement over the iron plow. The plow was made of wrought iron and had a steel share that could cut through sticky soil without clogging. By 1855, John Deeres factory was selling over 10,000 stee l plows a year. Reaper:à In 1831, Cyrus H. McCormick developed the first commercially successful reaper, a horse-drawn machine that harvested wheatTractors:à The advent of tractors revolutionized the agricultural industry, freeing agriculture from using oxen, horse, and manpower.
Sunday, February 23, 2020
Daniel Rutherford Essay Example | Topics and Well Written Essays - 500 words
Daniel Rutherford - Essay Example Daniel Rutherford, from Holl, 1804 It was a natural academic progression to attend the University of Edinburgh where his father was a professor of medicine. Daniel would also graduate with a degree in medicine, but it was the experiments he conducted as a student that helped unlock the mysteries of combustion, life, and the composition of 'vital air' ("Daniel Rutherford"). At the time, it was known that a quantity of air that had been subjected to combustion would no longer support life. It was mistakenly believed that the only gas left was carbon dioxide (CO2), and it was considered noxious because of its in inability to support life. Rutherford, through a series of experiments, was able to extract the CO2 and found that it still would not combust or support life. Though he is credited for isolating nitrogen, a more accurate portrayal is that he discovered that air was a mixture of many gases and there was the existence of 'vital air', that would later be known as oxygen. In 1772, he published his thesis titled On A ir Said to be Fixed or Mephitic (Daintith 467). This enabled other scientists that were doing similar research to be moved down the path of discovery. Rutherford's thesis helped guide the current thinking and has been credited with spawning many of Joseph Priestley's later experiments.(Daintith 467).
Thursday, February 6, 2020
Fuel cells Essay Example | Topics and Well Written Essays - 1000 words
Fuel cells - Essay Example This is then used to run a turbine to produce electricity. Thus there are many intermediate steps each with certain efficiency (always less than 100%) associated with each of them. This is because thermal energy is the worst form of energy with maximum entropy and therefore can never be converted fully into useful work. Now the overall efficiency of chemical potential energy to electricity conversion is a product of efficiency of each of the intermediate steps and therefore is much smaller. The best thermal power plants operate at maximum conversion efficiency of about 40%. Also, the combustion products are highly polluting adding to carbon emission and global warming. Fuel cells on the other hand convert the chemical potential energy directly into electricity and thus have very high conversion efficiency which is typically 70%. Besides, the reaction products are relatively harmless and in many cases completely harmless. Thus fuel cells are being seen as power plants of future and a tangible potential solution for containing the menace of carbon emission and therefore, global warming. These are already into many specialized and high end applications. In this report the basic principle, related developments and current and potential applications of fuel cells are briefly discussed. A fuel cell is like a galvanic cell. It directly converts chemical energy into electricity and is highly efficient. It is now possible to make such cells in which reactants are fed continuously to the electrodes and products are removed continuously from the electrolyte compartment. Galvanic cells that are designed to convert the energy of combustion of fuels like hydrogen, methane, methanol, etc. directly into electrical energy are called fuel cells. Such a fuel cell was used for providing electrical power in the Apollo space program. The water vapors produced during the reaction were
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