Has the Digital Revolution Had a Positive or Negative Effect on Essay

Has the Digital Revolution Had a Positive or Negative Effect on Communication in Today's Society - Essay Example The ability of computers to replicate and generate digital and graphical information enabled the digital world to flourish. The computers and the internet is the soul to the business world and with most part of the population possessing a personal computer allowed the digital technology to penetrate into every aspect of human life. The social media has advanced beyond imagination and every field from educational to entertainment has evolved drastically. According to (Walker ,1999,pg.39-48)â€Å"All types of information can now be transformed into digital form, manipulated by computers and transmitted by common networks†. The telecommunication field, media and information technology field has seen unbelievable changes due to the digital revolution. Moreover, the advancement in communication field has enabled the world economies to prosper in a short span of time. In concise, the revolution in digital world with the application of unique technology, methods and hardware has posi tively changed the face of the world. Positive Effects of Digital Revolution The technological, social media and communication field has undergone profound change due to digital revolution. ... In the article (Nations,2011)writes thatâ€Å" social media is such a broad term, it covers a large range of websites. But the one common link between these websites is that you are able to interact with the website and interact with other visitors†. Along with social media, the education sector has also seen major change which promoted the learning quality of students worldwide. Nowadays most of the educational curriculum is online based as it allows multimedia application which enhances the quality and absorption of learning information. Internet has advanced the communication procedure of students as they are facilitated with an advantage of online education. With the emergence of online education, students are rarely confined to a specific physical space. Digital evolution has given opportunity to students to access educational information and participate in educational programs and courses from any part of the world in minimum time. Apart from students, educators are equa lly benefited from online education as it eases the learning procedure and its outcome. Even the entertainment source of people has changed enormously due to advancement in digital technology. Today, video games has emerged has a main source of leisure activity for both young and adults alike. The video game has taken over the entertainment world as it exemplifies the leisure activity of people with its inspiring graphical and virtual presentation. According to (Beaumont,2009) â€Å"The sales of video games in the four years between 2003 to 2007 increased 40 per cent in the US, while over that same period, sales of cinema tickets had fallen six per cent†. The next best entertainment source for people are social websites and chatting services

Porosity Versus Permeability Essay Example for Free

Porosity Versus Permeability Essay Porosity and permeability are two terms that are commonly mentioned together and sometimes, even mistakenly interchanged. It is certain, however, that these two terms are completely different and pertain to different rock, sediment, or soil characteristics. The volume of openings in relation to its total volume determines porosity. The rule of thumb is that, the more tightly packed a rock is, then the less porous it is. As an example, crystals are less porous than volcanic rocks since the crystalline structure allows for compact organization, while volcanic rocks usually form in the presence of gases and therefore contain air spaces. Permeability, on the other hand, pertains to the degree of capacity to enable fluid to pass through. Thus, for example, if a rock has numerous holes in its structure and lets fluids to pass through effectively, then it can be considered as something that is highly permeable. On the other hand, if a rock has holes yet fluid still cannot pass, then it cannot be considered to have good permeability. In this sense, not only are possible passageways required for having good permeability, but the interconnectivity between the passageways is also important in order to allow the fluid to flow through. A sedimentary rock such as shale, which is composed of lithified clay, can be considered to have high porosity and low permeability. Since it is characterized by the numerous irregular spaces and breaks in its structure, it considered to be is rather porous just like other sedimentary rocks. However, due to the fact that the spacing pattern does not convey a continuous path wherein fluids may travel through, it cannot be considered to be permeable; hence, it has low permeability. Therefore, porosity and permeability are indeed distinct from each other, but a directly proportional relationship may commonly be observed between the two; however, there are cases where the relationship does not hold true due to the lack of proper interconnectivity between pores.

Abstract Expressionism Essay -- Art Artistic Painting Paintings Papers

Abstract Expressionism "What about the reality of the everyday world and the reality of painting? They are not the same realities. What is this creative thing that you have struggled to get and where did it come from? What reference or value does it have, outside of the painting itself?" Ad Reinhardt, in a group discussion at Studio 35, in 1950. My essay starts with the origin and the birth of this great expression in the twentieth century. This movement not only touched painting, it had an affect on various aspects of art-poetry, architecture, theater, film, photography. Vasily Kandinsky, Kazimir Malevich and Piet Mondrian are considered to be the pioneer artists to have achieved a truly abstract visual language in painting. Although they worked independently, these artists were united by a belief that abstract painting was capable of evoking a spiritual experience. A central figure of German Expressionism, Kandinsky, in 1911, began to paint densely layered composition of free-floating lines and areas of color, with the intention to reveal his desire to instill visual form with the properties of music. By 1915, Malevich had invented a new, abstract visual set of paintings consisting of one or more colored geometric shapes on a white field. He visualized a state of feeling, and a sense of bliss and wonder. Mondrian took a different approach with tighter geometric orientation and stricter compositional order. He was also inspired by landscape but he interpreted it as a series of interlocking vertical and horizontal lines. It would be hard to advance any definition of abstract expressionism without taking into account the vast and varied cultural and historical happenings t... ...painting and drawing led to his investigation of film making. Abstract expressionism was the combination of idealism and spirituality- two graeat schools of thought. I would sum up this essay by quoting from Willem de Kooning describing what abstract art means to him in 1951. He saw it as a an art of spiritual harmony in which all the main characters flew away from the painful realities of life. He said, " Their own sentiment of form instead was one of comfort. The beauty of comfort. The great curve of a bridge was beautiful because people could go across the river in comfort. To compose in curves like that, and angles, and make works of art with them could only make people happy, they maintained, for the only association was one of comfort. That millions of people have died in war since then, because of that idea of comfort, is something else." Abstract Expressionism Essay -- Art Artistic Painting Paintings Papers Abstract Expressionism "What about the reality of the everyday world and the reality of painting? They are not the same realities. What is this creative thing that you have struggled to get and where did it come from? What reference or value does it have, outside of the painting itself?" Ad Reinhardt, in a group discussion at Studio 35, in 1950. My essay starts with the origin and the birth of this great expression in the twentieth century. This movement not only touched painting, it had an affect on various aspects of art-poetry, architecture, theater, film, photography. Vasily Kandinsky, Kazimir Malevich and Piet Mondrian are considered to be the pioneer artists to have achieved a truly abstract visual language in painting. Although they worked independently, these artists were united by a belief that abstract painting was capable of evoking a spiritual experience. A central figure of German Expressionism, Kandinsky, in 1911, began to paint densely layered composition of free-floating lines and areas of color, with the intention to reveal his desire to instill visual form with the properties of music. By 1915, Malevich had invented a new, abstract visual set of paintings consisting of one or more colored geometric shapes on a white field. He visualized a state of feeling, and a sense of bliss and wonder. Mondrian took a different approach with tighter geometric orientation and stricter compositional order. He was also inspired by landscape but he interpreted it as a series of interlocking vertical and horizontal lines. It would be hard to advance any definition of abstract expressionism without taking into account the vast and varied cultural and historical happenings t... ...painting and drawing led to his investigation of film making. Abstract expressionism was the combination of idealism and spirituality- two graeat schools of thought. I would sum up this essay by quoting from Willem de Kooning describing what abstract art means to him in 1951. He saw it as a an art of spiritual harmony in which all the main characters flew away from the painful realities of life. He said, " Their own sentiment of form instead was one of comfort. The beauty of comfort. The great curve of a bridge was beautiful because people could go across the river in comfort. To compose in curves like that, and angles, and make works of art with them could only make people happy, they maintained, for the only association was one of comfort. That millions of people have died in war since then, because of that idea of comfort, is something else."

Dissolved Gas Analysis Method

FINAL YEAR PROJECT 1 PROGRESS REPORT 1 AUTHOR’S NAME:Ruban s/o Paramasivam STUDENT ID:EP083765 REPORTING PERIOD:18TH JUNE 2012 – 15TH JULY 2012 SUPERVISOR’S:Mr. John Steven NAME PROJECT TITLE:Dissolved Gas Analysis in determining Transformer Faults SUBMISSION DATE:16TH JULY 2012 1. 0 Background of Studies Oil sampling analysis is a useful, predictive, maintenance tool for determining transformer health. DGA is identified as one of the sufficient method of oil sampling in evaluating transformer health. The breakdown of electrical insulating material inside the transformer generates gases within the transformer.The identity of gases being generated is useful in any preventive method maintenance program. DGA method involves oil sampling method and testing the sample to measure the concentration of the dissolved gases. The two typical principal cause of gas formation within an operating transformer are electrical disturbance and thermal decomposition. All transformer s generate gasses to some extent at normal operating temperature. Insulating mineral oils for transformer are mixtures of many different hydrocarbons and the decomposition process for these hydrocarbons are complex.During this process, active hydrogen atoms and hydrocarbons fragments are formed. These fragments can combine with each other to form gasses such as Hydrogen (H2), Methane (CH4), Acetylene (C2H2), Ethylene (C2H4), Ethane (C2H6) and many more. The gasses listed are considered combustible. The rate at which each gas are produced depends on the temperature. Therefore, the concentration of the individual dissolved gasses found in transformer insulating oil may be used directly to evaluate the transformer and suggest any faults within the transformer.After samples have been taken and analysed, the first step in evaluating DGA result is to consider the concentration level of each gasses. Basically, any sharp increase of the key gasses stated above indicates potential problem wi thin the transformer. The type of faults which the key gasses can produce will be further discussed in the study. Literature Review 2. 0 Dissolved Gas Analysis Power Transformers are filled with oil which acts as a dielectric medium and also as a heat transfer agent besides being an insulator to the transformer. The insulated oil is made up of saturated hydrocarbons.These molecules are connected together to form a chain liked manner by carbon and hydrogen. [1] Table 1: Chemical structure of insulating oil and fault gases During normal use, there is a slow degradation of mineral oil which produces gases that dissolve in the oil, but when there is a electrical fault, the oil starts to degrade and temperature rises. Different patterns of gases are generated due to different intensities of energy dissipated according to the type of faults. This happens because of the broken chain of the chemical structure of the insulating oil.Therefore, the broken chain will form its own chemical struc ture which is known as hydrocarbon gases or also known as fault gases. It can be divided into 3 categories which is Thermal heating, Corona and Arching, The most severe intensity of energy dissipation occurs with arching, followed by thermal heating and the least severe is Corona. Figure 1 illustrates the process of breaking chain within the insulating oil chemical structure of the fault arcing, thermal heating, and corona. Figure 1: Breaking chain process of fault arcing, corona, thermal heating and pyrolysis of celluloseGases which are produced by the degradation of oil because of the increase of temperature may be caused by several factors: [2] * severe overloading * lighting * switching transients * mechanical flaws * chemical decomposition of oil or insulation * overheated areas of the windings * bad connections which have a high contact resistance The type of gases present in an oil sample makes it possible to find the type of fault that occurs in the transformer. This is done by evaluating the concentration of gases present in the oil during maintenance.The type of fault and its characteristics are as below [3]: * Arcing Arcing is the most severe of all fault processes. Large amount of hydrogen and acetylene are produced, with minor quantities of methane and ethylene. Arcing occurs in high current and high temperature conditions. Carbon dioxide and carbon monoxide may also be formed if the fault involved cellulose. In some instances, the oil may become carbonized. * Thermal heating Decomposition products include ethylene and methane, together with smaller quantities of hydrogen and ethane.Traces of acetylene may be formed if the fault is severe or involves electrical contacts. * Corona Corona is a low-energy electrical fault. Low-energy electrical discharges produce hydrogen and methane, with small quantities of ethane and ethylene. Comparable amounts of carbon monoxide and dioxide may result from discharge in cellulose. 2. 1 How DGA Works DGA method in cludes sampling of oil inside the transformer at different locations. Chromatographic analysis will be done on the oil sample to find the concentration of dissolved gas.The gases are then separated, identified and quantitatively determined such that the DGA method can then be applied in order to obtain reliable diagnosis [6]. The extracted gases meant for analysis purpose are Hydrogen (H2), Methane (CH4), Ethane (CH6), Ethylene (C2H4), Acetylene (C2H2), Carbon Monoxide (CO), Carbon Dioxide (CO2), Nitrogen (N2) and Oxygen (O2). These fault gases can be classified into 3 groups which are shown in Table 2. Group| Hydrocarbons & Hydrogen| Carbon Oxides| Non-fault gases| Gases| CH4,H2,CH6, C2H4,C2H2| CO, CO2| N2, O2| Table 2 :Fault Gases GroupDepending on the concentration of the dissolved gases, condition of the transformer can be evaluated. This is achievable because each type of fault burns the oil in a different way where it generates different type of gases. Therefore, it is easy to examine the fault base on the gas released and its concentration level. Table 3 : Relation between Fault type and Fault gases 2. 2 DGA Diagnostic Methods Insulating oil breakdowns to small quantity of gases due to over electrical or thermal stress. Thus, the composition of these gases plays a role in determining type of fault.Through DGA diagnostic methods, it is possible to find faults as discussed earlier. There are many methods in DGA and 5 methods will be studied in this literature review part. 2. 2. 1 Rogers Ratio Method The Roger’s method utilizes four gases ratios: CH4/H2, C2H6/CH4, C2H4/C2H6 and C2H2/C2H6. Diagnosis if faults are accomplished via a simple coding scheme based on ranges of the ratio as shown in tables below [4]. Table 4: Gas Ratio Codes [4] Table 5: Roger’s Ratio Code [4] The combination of the coding gives 12 different types of transformer faults. The type of faults based on the code is shown in table 6 below: [4]Table 6 : Classification based on Roger’s Ratio Codes 2. 2. 2 IEC Ratio Method This method originated from the Roger’s Ratio method, except that the ratio C2H6 /CH4 was dropped since it only indicated a limited temperature range of decomposition [3]. Here, the remaining three gas ratios have different ranges of code as compared to the Roger’s ratio method and they are shown in table 7. The faults are divided into nine different types as listed in table 8. [4] Table 7: IEC Ratio Codes [4] Table 8: Classification based on IEC Ratio Codes 2. 2. 3 Doenenbury Ratio MethodThis method utilizes the gas concentration from ratio of CH4/H2, C2H2/CH4, C2H4/C2H6 and C2H2/ C2H4. The value of the gases at first must exceed the concentration L1 to as certain whether there is really a problem with the unit and then whether there is sufficient generation of each gas for the ratio analysis to be applicable [5]. Table 9 shows the key gases and their concentration L1 [5], and table 10 shows fault type of specific ratios. Table 9: Concentration of L1 for Doernenburg Ratio Table 10: Fault diagnosis for Doernenburg Ratio Method 2. 2. 4 Duval Triangle Method M.Duval developed this method in the 1960s. To determine whether a problem exists at least one of the hydrocarbon gases or hydrogen must be at L1 level or above and the gas generation rate is at least at G2. [6] The L1 level and the gas generation rate for this method are shown in table 11. Table 11: L1 limits and gas generation rate for Duval Triangle Methode Once a problem has been determined to exist, to obtain diagnosis, calculate the total accumulated amount of the three Duval Triangle gases (CH4, C2H2, C2H4) and divide each gas by the total to find the percentage of each gas of the total.Plot the percentages of the total on the triangle (Figure2) to arrive at the diagnosis [6] Figure 2: Duval Triangle Transformer Fault Diagnosis 2. 2. 5 Key Gas Method Figure 3 : Key Gases Diagnosis The principle of the Key Gas method is based on the q uantity of fault gases released from the insulating oil when a fault occurs which in turn increase the temperature in the power transformer. The presence of the fault gases depends on the temperature or energy that will break the link or relation of the insulating oil chemical structure.This method uses the individual gas rather than the calculation of gas ratios for detecting fault. The significant and proportion of the gases are called â€Å"key gases†. Figure 3 indicate these â€Å"key gases† and relative proportions for the four general fault types [5]. 3. 0 Scheduled Work Task| Start Date| Duration (days)| Remarks| Progress| Project Title Selection| 28. 05. 2012| 12| Proposed own project title and submitted it on 4th June 2012| Completed| Research for Project Proposal| 08. 06. 2012| 10| Journals and articles were browsed through in IEEE, Science Direct, Scopus| Completed| Project Proposal| 14. 6. 2012| 3| Project Proposal was done based on the journals and article s found. | Completed | Research for Literature Review| 19. 06. 2012| unknown| Journals and articles were searched for the literature review| Ongoing| Progress Report 1| 01. 07. 2012| 15| Each progress towards the completion of Final Year Project 1| Completed| Research / Oral Presentation Preparation| 17. 07. 2012| 24| Complete the literature review and getting prepared for the oral presentation while doing research for the project| Incomplete| Oral Presentation| 10. 08. 2012 / 29. 08. 012| -| Presentation of all the findings and research and logbook to be submitted| Incomplete| Progress Report 2| 10. 08. 2012| 3| Each progress towards the completion of Final Year Project 1| Incomplete| 4. 0 Conclusion In the end of this study, I’ll be able to determine the pros and cons of all the different types of DGA diagnostics methods and be able to determine transformer faults out of the diagnostic methods which are very essential to prevent transformer damage. Suggestions and recommend ations will be given to further improve the efficiency of those available diagnostic methods . 0 Reference 1. Church, J. O. , Haupert, T. J. and Jakob, Fredi (1987). â€Å"Analyze Incipient Faults with Dissolved-gas Nomograph. † Elecrical World. Oct. Pgs. 40-44. 2. DiGiorgio, Joseph B. (1997). â€Å"Dissolved Gas Analysis of Mineral Oil Insulating Fluids. † California: Northern Technology & Testing 3. Domun, M. K. (1996). â€Å"Condition Monitoring of Power Transformers by Oil Analysis Techniques. † Proc. of the 11th Conference on Electric Power Supply Industry (CEPSI). Kuala Lumpur, Malaysia 4. Siva Sarma, D. V. S. S. and G. N. S.Kalyani, ANN Approach for Condition Monitoring of Power Transformers using DGA. 2004 IEEE Region 10 Conference, TENCON 2004. , 2004. C: p. 444-447. 5. C57. 104. 1991, I. , IEEE Guide for Interpretation of Gases Generated in Oil-Immersed Transformer, I. The Institute of Electrical and Electronic Engineers, Editor. 1992, The Institute of Electrical and Electronic Engineers, Inc p. 27 6. FIST3-31, Facilities Instructions, Standards and Techniques Volume 3-31 Transformer Diagnostics. 2003, Bureu of Reclamation Hydroelectric Research and Technical Services Group Denver. p. 5-13.

Marketing Samsung Essay

The transformation from a low end to a world class company, Samsung has grown with an electrifying portfolio. ’Next is what’ tag line for all the Samsung mobiles defies its competitors,making them strive more to compete. The underpinning business orientation aids the company to play the market race easily. The coordination between the products and sales is balanced and composed that the net sales mend at a high speed. Samsung targets to capitalize profitability by ensuing an effective marketing mix. A healthy competition is always considered to be one of the most attractive driving sources to triumph. Samsung faces several industrial aspirants, but is significantly distinguished with its marketing management tasks. The company follows a core strategy to keep glowing in the sprint. Superior performance through differentiation providing consumer value, managing lowest deliver cost acts as the imperative competitive advantages. ? The direct competitor targets for Samsung are, Put the companies name like iphone, nokia†¦Ã¢â‚¬ ¦ all its important competitors logo Samsung has a strong infrastructure with all the necessary requirements, producing wide range of well recognized products globally. The company puts its higher investment on R&D, thereby building technologically driven niche products. It establishes a brand value , providing greater yields than its competitors. The fast changing company entices young brains by providing fascinating pay, bonuses and incentives as a token of recognition. Samsung has large resources as a powerful work force, who are given full freedom to explore and innovate advancement in technologies and development. The business targets the specific market and creates a revolution, with its high margin products all over the world. With joint investments, the business is customer and market oriented. The brand power creates value chain that integrates competencies of all areas.Samsung positions itself as the digital technology leader, contends with other leading companies by appointing Olympic gold medalist Abinav Bindra and Actor Aamir khan, as its brand ambassador for it consumer electronics business and mobile phones respectively. Samsung meets every challenge, with high investment, with expertise in technology and marketing. Internally, Samsung maintains its own controlled strategy to stay competitive.

View from castle rock Essays

View from castle rock Essays View from castle rock Essay View from castle rock Essay The View from Castle Rock Text Response Questions. The View from Castle Rock. 1. Write a brief summary of the story. Andresens father took him through the castle on top of the rocks and told him the land over there is America. One day you will see it closer and for yourself- Old James, Andrews Father. As Andrew got older and had more understanding of things like maps, America the island his father showed him was really Fife. Andrews family catches a boat from the Harbor of Elite to America on June 4th 1818. Too many people. .. He ship will sink. Walter bought himself a book to write in abut his Journey o America, we also discover that Walter is motherless. After 10 days on the boat the loose sight of Scotland. They imagine what their lives will be like in Quebec, and how their health is still Just as good as when they left Scotland. 2. How does Old James see America? Old James see America as a place where There is every man is sitting in the midst of his own properties 3. Explain h ow we know that the family led insular unimaginative lives in Scotland? The family lives insular unimaginative lives as Andrew talks about how his father lied about seeing America when he was young when it was really Fife. . How helpful is Walters Journal to the story? Why do you think Munroe spends so much time recreating the ships crossing and its events? Walters Journal explains everything that the family uncounted on the ship Journey and then some description of what it was like when they landed in America and what happened to everybody. His Journal also talks about how they have a very prosperous voyage. I think Munroe spent so much time recreating this Journal because it showed how the family went on the Journey and the tragedies that also followed with this Journey. 5. Describe one dream/hope that a family member has when they land in Quebec. What does the character imagine their life might be like? Angles hopes to meet a man after hearing what a women said on the boat officers you see in the street Best-looking men.. Anywhere in the world. She hopes to marry, a man with enough money .. Let you ride in a Cambridge.. Send presents to your mother. Working for a living. 1. Write a brief summary of the story The story is an overview of her fathers life from age 12. The story detailed different things nee 010 ruling Nils Tie Ana Nils struggle tongue Tie. Munroe T eaten was a person with romantic perception and whilst he turned his hand to farming animal for their fur. He was never very successful in what he did and he struggled to provide for his family. 2. Why did Neurons father regret leaving school? I dont believe that her father regretted leaving school. .. Continuation School too young.. He should have stayed there, he should have made something out of himself Aid this almost as a matter of form, not as if he cared very much. Page 129 3. What was his interest as a young man and how did he pursue it? He was very interested in the bushman at the back of his parents farm, that he spend most of his time there exploring and catching animals, following the creeks. he began to spend more time in the bush and less and less time at school, so that his paren t decided there was not much point sending him 4. Describe Neurons mother and how she felt about her. Does this change over time? Discuss how subjective views change over time and are influenced by age, using examples form this story. Munroe thought her Mother and Father got married under a cloud of anxiety. Her mother in her late asss who was unmarried and didnt believe embody. She had a desire to be successful in business and a vision to take their fur trading to a new level. She was very good at making friends and mixing business and friends where her interests lay. In later years, Munroe felt that her mother used her illness, which was improper in her mother. 5. Why does Munroe include the excerpt of her fathers writing? What does it show about her father? Munroe included the excerpt of her fathers writing as it detailed the interaction with his grandfather when he was a little boy, which possibly the true foundation of the man he became to be. Its also describes the times they enjoyed together because he didnt have a good relationship Home Home is Neurons story is about going home as an adult. She talks about the long trip and the change to her perception of the house. She sees the interaction between her father and stepmother and describes her fathers falling health. Despite the time pasted since she lived at home there was still a comfort about being there. . Why is Munroe now able to visit her old home? Munroe Is addle to vaults nee 010 none as seen responsibilities. Let nerd unsound Ana Llanos nave same . Describe Aerial. Analyses how Munroe feels about her stepmother Aerial is a stout and rosier women. She like to make people laugh and people themselves, she seems to care for her father and love him. She may have once been an at tractive women and wishes she could have always been Neurons fathers wife and not his second wife. 4. How does her imagination influence how she writes about the landscape of her old home? Munroe description about the landscape of the home is through her desire to see it. When she was living more than a thousand miles away there was years twine visits. As she was unable to visit very often she was afraid she would been able to see the house very often would walk through it rooms, in her mind. 5. How does the situation and her emotions influence how she writes about the incidents surrounding her fathers illness. Munroe is clearly upset about her father illness but seem to write about other facts regarding his admission, doctor, Aerial, the dog rather than expression any true emotion towards her father. Hired Girl This is about Neurons experience about being a maid during the summer when she was 17. And her interaction with people on the island. She did believe that she did not have the grace or fortitude to be a servant. She falls into an boat of isolation unable to understand the maid life type and through this has sexual fantasies. 2. How does the author equate the forest to the rich people? Country people call land with lots of trees and undergrowth and great vines, brambles saplings the bush. Rich people eliminated undergrowth etc and turned the bush into a more authentic looking forest. Poor people didnt worry about interfering with the infusion of the seasonal changes. 3. Describe one member of the Monotony family in detail. Miss Foley. Miss Foley was Miss Monotony mother. She was an elderly women who needed althorn care, Decease seen got nerd wells crossed now Ana teen Mrs.. Holey seem to enjoy a leisurely life, who like to spend sunny mornings on the deck chair. 4. Neuron s imaginative landscape extends to pure fantasy in this chapter. What does she fantasies about? Analyses why much of this fantasy is sexual. She fantasies about Mr Hammond touching her as she swam around in the water, about the thought of IM touching (her) me. She thinks about the age difference and her desire to want a 45 year old touch her. I believe that she talks about this fantasy in detail because of the loneliness on the island and unable to understand the life as a maid. 5. How does Neurons need for intimacy from others assist her reflections of this period and these memoirs? Her need for intimacy is cry for attention and wants to understand the reasons for being treated so awfully as a maid. Due to this lack of intimacy when she leaves she almost immediately forgets Mrs Monotony.

Understanding the Big-Bang Theory

Understanding the Big-Bang Theory The big-bang theory is the dominant theory of the origin of the universe. In essence, this theory states that the universe began from an initial point or singularity, which has expanded over billions of years to form the universe as we now know it. Early Expanding Universe Findings In 1922, a Russian cosmologist and mathematician named Alexander Friedman found that solutions to Albert Einsteins general relativity field equations resulted in an expanding universe. As a believer in a static, eternal universe, Einstein added a cosmological constant to his equations, correcting for this error and thus eliminating the expansion. He would later call this the biggest blunder of his life. Actually, there was already observational evidence in support of an expanding universe. In 1912, American astronomer Vesto Slipher observed a spiral galaxy- considered a spiral nebula at the time, since astronomers didnt yet know that there were galaxies beyond the Milky Way- and recorded its redshift, the shift of a light source shift toward the red end of the light spectrum. He observed that all such nebula were traveling away from the Earth. These results were quite controversial at the time, and their full implications were not considered. In 1924, astronomer Edwin Hubble was able to measure the distance to these nebula and discovered that they were so far away that they were not actually part of the Milky Way. He had discovered that the Milky Way was only one of many galaxies and that these nebulae were actually galaxies in their own right. Birth of the Big Bang In 1927, Roman Catholic priest and physicist Georges Lemaitre independently calculated the Friedman solution and again suggested that the universe must be expanding. This theory was supported by Hubble when, in 1929, he found that there was a correlation between the distance of the galaxies and the amount of redshift in that galaxys light. The distant galaxies were moving away faster, which was exactly what was predicted by Lemaitres solutions. In 1931, Lemaitre went further with his predictions, extrapolating backward in time find that the matter of the universe would reach an infinite density and temperature at a finite time in the past. This meant the universe must have begun in an incredibly small, dense point of matter, called a primeval atom. The fact that Lemaitre was a Roman Catholic priest concerned some, as he was putting forth a theory that presented a definite moment of creation to the universe. In the 1920s and 1930s, most physicists- like Einstein- were inclined to believe that the universe had always existed. In essence, the big-bang theory was seen as too religious by many people. Big Bang vs. Steady State While several theories were presented for a time, it was really only Fred Hoyles steady-state theory that provided any real competition for Lemaitres theory. It was, ironically, Hoyle who coined the phrase Big Bang during a 1950s radio broadcast, intending it as a derisive term for Lemaitres theory. The steady-state theory predicted that new matter was created such that the density and temperature of the universe remained constant over time, even while the universe was expanding. Hoyle also predicted that denser elements were formed from hydrogen and helium through the process of stellar nucleosynthesis, which, unlike the steady-state theory, has proved to be accurate. George Gamow- one of Friedmans pupils- was the major advocate of the big-bang theory. Together with colleagues Ralph Alpher and Robert Herman, he predicted the cosmic microwave background (CMB) radiation, which is radiation that should exist throughout the universe as a remnant of the Big Bang. As atoms began to form during the recombination era, they allowed microwave radiation (a form of light) to travel through the universe, and Gamow predicted that this microwave radiation would still be observable today. The debate continued until 1965 when Arno Penzias and Robert Woodrow Wilson stumbled upon the CMB while working for Bell Telephone Laboratories. Their Dicke radiometer, used for radio astronomy and satellite communications, picked up a 3.5 K temperature (a close match to Alpher and Hermans prediction of 5 K). Throughout the late 1960s and early 1970s, some proponents of steady-state physics attempted to explain this finding while still denying the big-bang theory, but by the end of the decade, it was clear that the CMB radiation had no other plausible explanation. Penzias and Wilson received the 1978 Nobel Prize in physics for this discovery. Cosmic Inflation Certain concerns, however, remained regarding the big-bang theory. One of these was the problem of homogeneity. Scientists asked: Why does the universe look identical, in terms of energy, regardless of which direction one looks? The big-bang theory does not give the early universe time to reach thermal equilibrium, so there should be differences in energy throughout the universe. In 1980, American physicist Alan Guth formally proposed inflation theory to resolve this and other problems. This theory says that in the early moments following the Big Bang, there was an extremely rapid expansion of the nascent universe driven by negative-pressure vacuum energy (which may be in some way related to current theories of dark energy). Alternatively, inflation theories, similar in concept but with slightly different details have been put forward by others in the years since. The Wilkinson Microwave Anisotropy Probe (WMAP) program by NASA, which began in 2001, has provided evidence that strongly supports an inflation period in the early universe. This evidence is especially strong in the three-year data released in 2006, though there are still some minor inconsistencies with theory. The 2006 Nobel Prize in Physics was awarded to John C. Mather and George Smoot, two key workers on the WMAP project. Existing Controversies While the Big Bang theory is accepted by the vast majority of physicists, there are still some minor questions concerning it. Most importantly, however, are the questions which the theory cannot even attempt to answer: What existed before the Big Bang?What caused the Big Bang?Is our universe the only one? The answers to these questions may well exist beyond the realm of physics, but theyre fascinating nonetheless, and answers such as the multiverse hypothesis provide an intriguing area of speculation for scientists and non-scientists alike. Other Names for the Big Bang When Lemaitre originally proposed his observation about the early universe, he called this early state of the universe the primeval atom. Years later, George Gamow would apply the name ylem for it. It has also been called the primordial atom or even the cosmic egg.