History of Electromagnetism

Electromagnetism  is an area of  physics  which involves the study of the  electromagnetic force, a type of physical interaction that occurs between  electrically charged  particles. The electromagnetic force usually produces  electromagnetic fields, such as  electric fields,  magnetic fields  and  light. The electromagnetic force is one of the four  fundamental interactions  (commonly called forces) in  nature. The other three fundamental interactions are the  strong interaction, the  weak interaction  and  gravitation. Until 1820, the only magnetism known was that of iron magnets and of lodestones, natural magnets of iron-rich ore. It was believed that the inside of the Earth was magnetized in the same fashion, and scientists were greatly puzzled when they found that the direction of the compass needle at any place slowly shifted, decade by decade, suggesting a slow variation of the Earths magnetic field. Edmond Halleys Theories How can an iron magnet produce such changes? Edmond Halley  (of comet fame) ingeniously proposed that the Earth contained a number of spherical shells, one inside the other, each magnetized differently, each slowly rotating in relation to the others. Hans Christian Oersted: Electromagnetism Experiments Hans Christian Oersted was a professor of science at Copenhagen University. In 1820 he arranged in his home a science demonstration to friends and students. He planned to demonstrate the heating of a wire by an electric current, and also to carry out demonstrations of magnetism, for which he provided a compass needle mounted on a wooden stand. While performing his electric demonstration, Oersted noted to his surprise that every time the electric current was switched on, the compass needle moved. He kept quiet and finished the demonstrations, but in the months that followed worked hard trying to make sense out of the new phenomenon. However, Oersted could not explain why. The needle was neither attracted to the wire nor repelled from it. Instead, it tended to stand at right angles. In the end, he published his findings without any explanation. Andre Marie Ampere and Electromagnetism Andre Marie Ampere in France felt that if a current in a wire exerted a magnetic force on a compass needle, two such wires also should interact magnetically. In a series of ingenious experiments, Andre Marie Ampere showed that this interaction was simple and fundamental: parallel (straight) currents attract, anti-parallel currents repel. The force between two long straight parallel currents was inversely proportional to the distance between them and proportional to the intensity of the current flowing in each. There thus existed two kinds of forces associated with electricity—electric and magnetic. In 1864, James Clerk Maxwell demonstrated a subtle connection between the two types of force, unexpectedly involving the velocity of light. From this connection sprang the idea that light was an electric phenomenon, the discovery of radio waves, the theory of relativity and a great deal of present-day physics.

Analysis Of The Article The Case For Reparations

In the article, â€Å"The case for Reparations† by Ta-Nehisi Coates, the author examined African American history as it relates to slavery and oppression. The article discussed slavery experiences, unjust laws, current issues, and reparation ideas. Coates (2014) examined past events that occurred to prevent African Americans from being equal to whites. According to Coates (2014) African Americans were vulnerable because they did not have protection from law. The article discussed how African Americans suffered many loses due to whites such as voting rights, taxes, and property lost. African Americans were still at a disadvantage when certain laws were put into place in their favor. Coates (2014) gives great insight of the unfairness and hardships. The article also gives great examples of current issues that African Americans encounter in today’s society, such as health care and employment. Coates (2014) main purpose is to encourage readers that African Americans deserve compensation for years of oppression. The author also believes that reparation is necessary and would be very beneficial. The author uses the term â€Å"Reparations† repetitively in the text. According to the text the word â€Å"reparation† means to make amends. Coates (2014) also refers to reparations as compensation. America should take responsibility and pay the price for the mistreatment to African Americans (2014). Coates (2014) does not only mean monetary compensation but acceptance and acknowledgement. The authorShow MoreRelatedAnalysis Of The Article The Case For Reparations 1264 Words   |  6 Pages The article, â€Å"The Case for Reparations†, presents itself with a commendable representation on how the need for reparations is essential when combined with the brutal history of slavery and progression of blacks in American Society after slavery. Ta- Nehisi Coates argues that the relationship between racial identity and reparations is based upon America’s debt to blacks for the countless years of injustice. With this he demonstrates how white supremacy has ultimately used impractical measures toRead MoreTo What Extent Can Reparations Affect The Quality Of Life For African Americans? Essay1645 Words   |  7 PagesTo what extent can reparations affect the quality of life for African Americans? In the present paper a clear link will be made between segregation and slavery and an increased poverty rate in African Americans now, as well as an analysis of previous historical instances of reparations and how other instances of reparations from slavery set a precedent for reparations for African Americans. There will also be mention of past historical precedent and how, when reparations were given prior, theyRead MoreThe Slavery Of The Holocaust1391 Words   |  6 Pages GERMAN REPARATIONS Historically, there has been many groups of people who have received reparations for past wrongdoings. There have been a few isolated incidents, such as the Rosewood event, where African Americans were harmed and received reparations; however, reparations have also been given on a much larger scale. Ta-Nehisi Coates is a national correspondent at The Atlantic, and he has written books along with countless articles on African Americans and equally. Coates is one of the mostRead MoreAmnesty International : For Survivors Of Wartime Rape1728 Words   |  7 PagesAmnesty International: WHEN EVERYONE IS SILENT: REPARATION FOR SURVIVORS OF WARTIME RAPE IN REPUBLIKA SRPSKA IN BOSNIA AND HERZEGOVINA. Amnesty International Publications (2012). Amnesty International’s purpose is â€Å"to analyze the failure of the authorities to respect the right to reparation of survivors of wartime rape.† (AI) This purpose is legitimate as out of the tens of thousands of women who were victims of wartime rape, â€Å"fewer than 40 cases have been prosecuted.† (AI) The governments of BosniaRead MoreEssay about Union Carbide799 Words   |  4 PagesStakeholder analysis, specifying to the extent or degree stakeholders should be held responsible for the accident. According to Article 14 of UN Norms, transnational corporations and other business enterprises are responsible for the environmental and human health impact of their activities. The commentary of the article states in detail the concrete measures to be taken in this regard. Article 18 asks on transnational corporations and other business enterprises to make reparations for damagesRead MoreThe System Of Collective Rights1873 Words   |  8 Pagesnature of the rights involved. 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(A similar ceremony will later be later conducted on the steps of the Capital and any DemocratRead MoreQuestions On The Law Of International Peace And Security2550 Words   |  11 Pages Although article 16 of the ICC’s statute provides for deferral, the deliberations of the Kenyan deferral requests bring out critical legal issues and gaps that need to be addressed. Article 16 reads as follows, ‘No investigation or prosecution may be commenced or proceeded with under this Statute for a period of 12 months after the Security Council, in a resolution adopted under Chapter VII of the Charter of the United Nations has requested the Court to that effect; that request may be renewed byRead MoreFair Trial Advantages1242 Words   |  5 Pagesthe right to life and liberty and the prohibition against torture and other forms of cruel, inhuman or degrading treatment or punishment. All persons must have equal rights of access to the courts and tribunals, including access to remedies and reparations. Justice must be administered in a way that achieves fairness for all, regardless of the identity of the parties to the proceedings or the nature of the proceedings them selves. Criminal charges, or a person’s rights and obligations in a suit at

Working in Regional Community for Urban Areas-myassignmenthelp

Question: Write about theWorking in Regional Community for Urban Areas. Answer: Remote classification is very important when it comes to policy and service delivery in Australia. Factors like road infrastructure influence the delivery of various government services such as health amenities to access people living far away from major urban areas. Therefore, the remoteness structure is key in ensuring that statistics regarding remote areas are released after being classified so that policy development can be initiated. Additionally, this is done by classifying various remote areas into large regions that share similar characteristics of remoteness for policy development. Kununurra is a town found in Kimberly region of Western Australia. People of Aboriginal descent reside Kununurra. Hills and ranges surround this town, and hence fresh water is conserved in dams. The town is a very remote area with a population of only about 4,000 inhabitants. The community in this area experience low access to healthcare. Moreover, the infrastructure in this area is underdeveloped, and thus transport and electricity are among demanding issues. However, farming is the main activity carried out and the main crops farmed are mangoes and melons. Rice, cotton, and safflower are also grown. Besides, the area experiences a steppe climate in which the annual rainfall of about 800mm. Mining and tourism are also taking root in the area (McGrail Humphreys, 2014). On the other hand, Melville Island is a very remote area found in the Tiwi islands of the Northern part of Australia at 5,786 square kilometers. The population of this area does not exceed 1,200 inhabitants with about 559 people being Milikapiti village, a second village called Pirlangimpi has a population of 440 people. The predominant tradition in this area has been the making of bark baskets referred as tunga. Therefore, this tradition together with the great sceneries in the island are the main sources of the tourist attraction (Thomas et al., 2014). From this activity, one can learn about the key characteristics and associated necessary decisions related to remote classification. In addition, one learns that remoteness classifications are an important part when it comes to rural health personnel policy. This is because it is possible to discover how the government tries to align delivery of services in various parts of the country, especially the remote areas. On the other hand, on top of establishing the foundation for resource distribution decisions, remoteness classifications are regularly used as geometric tools to help in rural research. In most cases, the classification of remote areas aids in the presentation of research outcomes like how health care quality and efficacy are affected by delivery of health amenities in a remote region. References: McGrail, M. R., Humphreys, J. S. (2014). Measuring spatial accessibility to primary health care services: Utilizing dynamic catchment sizes. Applied Geography, 54, 182-188. Thomas, S. L., Zhao, Y., Guthridge, S. L., Wakerman, J. (2014). The cost-effectiveness of primary care for Indigenous Australians with diabetes living in remote Northern Territory communities. The Medical journal of Australia, 200(11), 658-662.

The Fed And Interest Rates Essays - Monetary Policy,

The Fed and Interest Rates Dave Pettit of The Wall Street Journal writes a daily column that appears inside the first page of the journal's Money & Investment section. If the headlines of Mr. Pettit's daily column are any accurate record of economic concerns and current issues in the business world, the late weeks of March and the early weeks of April in 1994 were intensely concerned with interest rates. To quote, "Industrials Edge Up 4.32 Points Amid Caution on Interest Rates," and "Industrials Track On 13.53 Points Despite Interest-Rate Concerns." Why such a concern with interest rates? A week before, in the last week of March, the Fed had pushed up the short-term rates. This being the first increase in almost five years, it caused quite a stir. When the Fed decides the economy is growing at too quick a pace, or inflation is getting out of hand, it can take actions to slow spending and decrease the money supply. This corresponding with the money equation MV = PY, by lowering both M and V, P and Y can stabilize if they are increasing too rapidly. The Fed does this by selling securities on the open market. This, in turn, reduces bank's reserves and forces the interest rate to rise so the banks can afford to make loans. People seeing these rises in rates will tend to sell their low interest assets, in order to acquire additional money, they tend move toward higher yielding accounts, also further increasing the rate. Soon this small change by the Fed affects all aspects of business, from the price level to interest rates on credit cards. Rises and falls in the interest rate can reflect many changes in an economy. When the economy is in a recession and needs a type of stimulus package, the Fed may attempt to decrease the interest rates to encourage growth and spending in the markets. This was the case from 1989 until last month, during which the nation's economy was generally considered to be in a slight to moderate recession. During this period the Fed tried to keep interest rates low to facilitate growth and spending in hard times. However, when inflation is increasing too quickly and the economy is gaining strength, the Fed will attempt to raise rates, as it did late last March. This can be considered a sign that we are pulling out of the recession, or atleast it seems the Fed feels the recession of the early nineties is ending. Directly after the Fed's actions, the stock market was a mess. The Dow took huge dips, falling as much as 50 points a day. Although no one knows exactly what influences the market, the increase in interest rates played a major role in this craziness. Mr. Pettit's column on March 25th highlights, "Industrials Slide 48.37," Mr. Pettit attributes a large portion of the market's "tailspin" at this time to, "Rising interest rates at home." It is certainly no coincidence that these two events happened at the same time. Alan Greenspan, the current chairman of the Fed comes under great attack and praise with every move the Fed makes. He is, in a sense, the embodiment of the Fed. He has been in charge of the Fed since 1987. Some economists blame him for the recession of the early nineties. His influence on the interest rates as chairman of the Fed is monumental. It is his combined job as the Fed to steer the economy in a balanced manner that does not yield too much to inflation and to keep growth steady. Predictably, most economists are back seat drivers when it comes to watching the actions of Allen Greenspan, and they tend to feel they could much more successfully manage the economy than he. Many also agree with his tactics, so it is a two way street on which the chairman is forced to drive. It seems that not only the analysts are in disagreement of how the fed should operate, but interestingly enough, the internal policy makers seem to also disagree on what stance the Fed should take. Some of the internal policy makers are interested in making a more substantial increase now, while others opt for a more conservative approach, where the market can be tested for both good and bad influences from the rate increases. Allen Greenspan is one of this more conservative group, and it is he is critisized by some for the irradic behavior in the stock market as of late. The equilibrium that the Fed The Fed And Interest Rates Essays - Monetary Policy, The Fed and Interest Rates Dave Pettit of The Wall Street Journal writes a daily column that appears inside the first page of the journal's Money & Investment section. If the headlines of Mr. Pettit's daily column are any accurate record of economic concerns and current issues in the business world, the late weeks of March and the early weeks of April in 1994 were intensely concerned with interest rates. To quote, "Industrials Edge Up 4.32 Points Amid Caution on Interest Rates," and "Industrials Track On 13.53 Points Despite Interest-Rate Concerns." Why such a concern with interest rates? A week before, in the last week of March, the Fed had pushed up the short-term rates. This being the first increase in almost five years, it caused quite a stir. When the Fed decides the economy is growing at too quick a pace, or inflation is getting out of hand, it can take actions to slow spending and decrease the money supply. This corresponding with the money equation MV = PY, by lowering both M and V, P and Y can stabilize if they are increasing too rapidly. The Fed does this by selling securities on the open market. This, in turn, reduces bank's reserves and forces the interest rate to rise so the banks can afford to make loans. People seeing these rises in rates will tend to sell their low interest assets, in order to acquire additional money, they tend move toward higher yielding accounts, also further increasing the rate. Soon this small change by the Fed affects all aspects of business, from the price level to interest rates on credit cards. Rises and falls in the interest rate can reflect many changes in an economy. When the economy is in a recession and needs a type of stimulus package, the Fed may attempt to decrease the interest rates to encourage growth and spending in the markets. This was the case from 1989 until last month, during which the nation's economy was generally considered to be in a slight to moderate recession. During this period the Fed tried to keep interest rates low to facilitate growth and spending in hard times. However, when inflation is increasing too quickly and the economy is gaining strength, the Fed will attempt to raise rates, as it did late last March. This can be considered a sign that we are pulling out of the recession, or atleast it seems the Fed feels the recession of the early nineties is ending. Directly after the Fed's actions, the stock market was a mess. The Dow took huge dips, falling as much as 50 points a day. Although no one knows exactly what influences the market, the increase in interest rates played a major role in this craziness. Mr. Pettit's column on March 25th highlights, "Industrials Slide 48.37," Mr. Pettit attributes a large portion of the market's "tailspin" at this time to, "Rising interest rates at home." It is certainly no coincidence that these two events happened at the same time. Alan Greenspan, the current chairman of the Fed comes under great attack and praise with every move the Fed makes. He is, in a sense, the embodiment of the Fed. He has been in charge of the Fed since 1987. Some economists blame him for the recession of the early nineties. His influence on the interest rates as chairman of the Fed is monumental. It is his combined job as the Fed to steer the economy in a balanced manner that does not yield too much to inflation and to keep growth steady. Predictably, most economists are back seat drivers when it comes to watching the actions of Allen Greenspan, and they tend to feel they could much more successfully manage the economy than he. Many also agree with his tactics, so it is a two way street on which the chairman is forced to drive. It seems that not only the analysts are in disagreement of how the fed should operate, but interestingly enough, the internal policy makers seem to also disagree on what stance the Fed should take. Some of the internal policy makers are interested in making a more substantial increase now, while others opt for a more conservative approach, where the market can be tested for both good and bad influences from the rate increases. Allen Greenspan is one of this more conservative group, and it is he is critisized by some for the irradic behavior in the stock market as of late. The equilibrium that the Fed