Defining the Meissner Effect in Quantum Physics

Defining the Meissner Effect in Quantum Physics The Meissner effect is a phenomenon in quantum physics in which a superconductor negates all magnetic fields inside of the superconducting material. It does this by creating small currents along the surface of the superconductor, which has the effect of canceling out all magnetic fields that would come in contact with the material. One of the most intriguing aspects of the Meissner effect is that it allows for a process that has come to be called quantum levitation. Origin The Meissner effect was discovered in 1933 by German physicists Walther Meissner and Robert Ochsenfeld. They were measuring the magnetic field intensity surrounding certain materials and found that, when the materials were cooled to the point that they became superconducting, the magnetic field intensity dropped to nearly zero. The reason for this is that in a superconductor, electrons are able to flow with virtually no resistance. This makes it very easy for small currents to form on the surface of the material. When the magnetic field comes near to the surface, it causes the electrons to begin flowing. Small currents are then created on the surface of the material, and these currents have the effect of canceling out the magnetic field.

Expanding Walmart into Turkey Essay Example | Topics and Well Written Essays - 2000 words

Expanding Walmart into Turkey - Essay Example For instance, the company operates as Walmex in Mexico, Asda in United Kingdom, Seiyu in Japan and Best Price in India. It is worth mentioning that till date the business is located in around 15 countries under 55 different names (Wal-Mart Stores, Inc., 2013). The Republic of Turkey generally known as Turkey is a transcontinental nation located in the western part of Asia. The country is considered to be a democratic, secular, unitary constitutional republic with diverse cultural heritage. Turkey is measured to be the official language that almost 85% of the people use and English is the secondary language. In terms of the present day statistics, the nation is listed in the 15th position in accordance with Gross Domestic Product (GDP) and Purchasing Power Parity (PPP) and is placed in the 17th position concerning nominal Gross Domestic Product (GDP). Istanbul is considered to be the most populated state in the nation. In terms of education, turkey is determined to be one of the most literate countries having a literacy rate of almost 94.1% as of 2011, additionally the current health care suspect of the country is considered to be quite sound in comparison with the past. It is worth mentioning that two of the universities of turkey are glo bally recognized as the best universities in the world (CIA, 2013; ZÃ ¼rcher, 2004). The main objective of this study is to provide a comprehensive analysis of Turkey that would facilitate in understanding the various factors that are essential for a business to evaluate before establishing in any nation. The study would also provide a recommendation section that would help in understanding whether Walmart’s plan to expand in Turkey would be profitable for the company in the long run or not. Cultural facet is considered to be one of the major constituents that any business needs to consider before expanding in a new country. The vital reason behind this is that it plays a major role in the dynamics of the way in

Unlawful Discrimination II Assignment Example | Topics and Well Written Essays - 500 words

Unlawful Discrimination II - Assignment Example mployer (Hillbrook Manufacturing Company Ltd) because she was not remunerated on equal employment terms with her male counterparts in the same kind of job. Mrs. Lauren had worked for Hillbrook Manufacturing Company limited for more than ten years. However, during her tenure for work, she was being paid less than her male counterparts due to under assessment which was being conducted by her immediate supervisors. She decided to file a case against her employer based on gender inequality. The statutes prohibit any unfairness by the employer to the employees hence Mrs. Lauren was acting according to the law. The United States judicial system recognizes any form of partiality at the working environment. The employer in this case was being undermined and underpaid compared to her male counterparts. This is against â€Å"Equal pay Act† of United States which requires all employers to remunerate their employees equally irrespective of their gender. Also, this was characterized by inequality hence it was against Equal Employment Opportunity Act (Beiner, 2004). This act requires all workers to be treated the same way irrespective of their social, political, race or even religious background. Therefore, biasness portrayed by the employer in this case was tantamount to breach of law. When dealing with the matter of biasness in the working place, judges should first establish the truth about the alleged inequity. They have to prove that the wronged person was indeed being underpaid and under evaluated compared to other male workers. Therefore, Mrs. Lauren should provide enough evidence to affirm that she was being underpaid, and that this was due to her gender. However, it is the employee’s responsibility to notify the court and provide evidence for the allegations against the employer (Beiner, 2004). The claim must support that the employees was not given equal chances and opportunities like her male counterparts. The role of judge is providing justice to the wronged

Louis Pasteur Essay Example | Topics and Well Written Essays - 1000 words - 1

Louis Pasteur - Essay Example To understand the process better we may think of, the old fashioned idea of home canning process where we use heat united with combined given temperatures’ to kill the harmful germs. Most foods may be pasteurized examples includes milk, and most form of cooked foods such as the cooked vegetables. Louis Pasteur discovered the process, when summoned by alcohol manufacturing company to determine the cause of beetroot alcohol to sour. During that time, many scientists thought that the fermentation was a merely chemical process. He did research into fermentation, which led him to find out that it was yeast, one of the living organisms that crooked the beet to alcohol. Yeast was plump and round under the microscope, after being spoiled by the alcohol, it contained another different microbe that looked like a rode-shaped. He speculated that the different rod shaped known as the Mycoderma acetic, frequently used to create vinegar, caused the wine to be spoiled (Fandel, Wilson, Ramos & Barnett, 2007). His pasteurization discovery formed the germ of Pasteur or the germ theory of fermentation. He could apply the same notion to the genesis of diseases making to have the greatest contribution in medicine and science. This made Emperor Napoleon III of France enlisted him to save France industries of wine from the diseases. His main role was to establish exact temperature, and time that would take to destroy the harmful microorganisms found in the wine without transforming the taste of the wine. He untested the process and named it pasteurization (Fandel, Wilson, Ramos & Barnett, 2007). With time, the process was incorporated in making vinegar and beer. He came up with a practical technique for the curb of beer fermentation; he provided a rational methodology for the brewing industry. Besides these he devised a technique used in the manufacturing of beer, which

Global Warming is real Research Paper Example | Topics and Well Written Essays - 1000 words

Global Warming is real - Research Paper Example The resulting rise in sea level is causing tsunamis to occur and has also endangered the survival of many animal species on earth. The question that has, in recent years, attracted the attention of scientists all over the world is, if the global warming is on a rise, and if so, to what extent are humans responsible for that? As fossil fuels burn, the carbon they contain gets converted into a greenhouse gas, known as carbon dioxide (CO2). Such greenhouse gases as methane (CH4) and CO2 entrap the sun’s energy into the atmosphere. There has recently been a tremendous emphasis on reduction of the fossil fuels use as they are thought to be the most fundamental cause of increase in global warming. In this paper, the question noted above has been answered with support of scientific studies to show that global warming is a real issue. According to the meteorites’ radioactive dating, it has been 4.6 billion years since the solar system of which earth forms a part has been found. Examination of the minerals preserved in earth and the scientific study of rocks has shown that earth has contained liquid water for 4.3 billion years (Watson and Harrison). Since then, climate of earth has largely remained stable, with occasional freezing in certain areas that have always remained as such. It is the massive increase in the energy drawn from sun that has caused a tremendous increase in the earth’s temperature. According to an estimate, there has been a 30 per cent increase in the energy output on earth from sun since the start of the solar system (Gough). Part of the energy drawn from the sun is reflected and some is retained. Some portion of the energy that gets absorbed in earth radiates back and escapes into the space. It is the energy absorbed minus energy radiated that decides the temperature of earth. Composition of the earth’s atmosphere also plays a decisive role in the increase of temperature. 99 per cent of the gases that atmosphere contains like oxygen and nitrogen are transparent towards the energy drawn from sun. Other gases like CO2 and water vapors tend to reduce the process of radiation of the energy from earth to the space. Therefore, increase in the level of these gases obviously increases the temperature of earth and contributes to the global warming. Of the two gases, it is the CO2 that concerns scientists the most because the water vapors in atmosphere remain constant in amount as compared to the CO2. Now, if the CO2 level in the atmosphere is increasing, global warming is then indeed, a real issue! The biggest source of CO2 is the fossil fuels. In addition to that, decomposition of materials and burning of wood also causes a considerable increase in the content of CO2 in the atmosphere. The rapid industrialization that has occurred in the recent centuries has caused a manifold increase in the CO2 level in the atmosphere. The reason why the resulting increase in the earth’s temperature is an issue is that this directly affects the ecosystem prevailing on earth. If the CO2 level continues to increase at the present rate, earth will soon become inhabitable for almost all species including humans, and life on earth will extinguish. The following text examines what recent studies have said about the CO2 levels in the atmosphere. (Deem) has shown the rate of annual increase in the C

What role did Jews play in the American civil rights movement Essay

What role did Jews play in the American civil rights movement - Essay Example But in the 1960s, with the world watching on the evening news, many Jews traveled from northern cities to southern sites of marches, sit-ins, and rallies to support equal rights for African-Americans and to oppose those who would oppress them. Clearly there were motivating factors that made it beneficial for African Americans to have Jewish people helping them to attain equal rights. Any group who chose to support the civil rights movement would not only lend encouragement and backing, but also credibility and strength in numbers. Stephen J. Whitfield confirms that African Americans and Jews â€Å"have been so entangled that some twentieth-century Jews in the United States would imagine themselves black, and would blur the lines of race and ethnicity that bigotry had hoped to keep distinct† (Whitfield, 2008 , p. 353). However, it was not just an affinity or moral outrage that prompted Jewish people to become involved in the civil rights movement. Any victory for African Americans was a victory for Jews too. As a people, Jews have met with oppression throughout their history. Many felt as if they dwelt in a place somewhere between the dominant ethnicity of white Anglo-Saxon protestant and the most oppressed race in the United States, African American—sort of a gray area between black and white. By helping to obtain civil rights for African Americans, Jews knew that their cause would be swept along in the tide of change. They too would benefit from changes in federal legislation that would rein in some of the blatant injustice. Martin Luther King understood this. During the bus boycott in Montgomery, AL he said, â€Å"Our victory will not be a victory for Montgomery’s Negroes alone. It will be a victory for justice, a victory for fair play, and a victory for democracy.’ After the boycott proved successful, King refused to ‘take this as a victory over the white

Cognitive science and schema theory Research Proposal

Cognitive science and schema theory - Research Proposal Example With these concepts, I have analyzed the reason of failure of Guild wars game launched in Korea. Guild wars game which was successful in US failed to localize in Korea because of failure to design their product for users in a different culture. We are all aware that knowing something about a subject makes it easier to learn more about that subject: our prior knowledge serves as a framework which makes the new information more meaningful and easier to absorb (Huckin 1983). In other words, every interactants social world is usually constituted within a framework of familiar and pre-acquainted knowledge about various situations. This familiar and pre-acquainted knowledge is called schemas (or schemata). The concept of schemas is not new, but existed even in the 19th century: German philosopher Immanuel Kant developed the idea that each persons experiences are gathered together in memory, forming higher order concepts (Wolff 1963). In the last 25 years, the concept of schemas has been used and defined by quite a number of scholars. Cohen et al. (1993) for example, explain schemas as "packets of information stored in memory representing general knowledge about objects, situations, events, or actions" (p. 28). Schemas are classi fied into several types. Among them, cultural schema theory is "the familiar and pre-acquainted knowledge one uses when entering a familiar situation in his/her own culture. Cultural schemas for social interaction are cognitive structures that contain knowledge for face-to-face interactions in a persons cultural environment." (Nishida 1999) A concept of cultural schema theory is one of the most important achievements in cognitive science which deals with human thought process. In this concept, the difficulty of sharing a common understanding between designers and users, and the importance of eliminating the gulf between them are pointed out. It is the brain that keeps and stores any