Solar Energy - The Energy Of The Future Essays - Energy Conversion

Solar Energy - The Energy Of The Future? About 47 per cent of the energy that the sun releases to the earth actually reaches the ground. About a third is reflected directly back into space by the atmosphere. The time in which solar energy is available, is also the time we least need it least - daytime. Because the sun's energy cannot be stored for use another time, we need to convert the suns energy into an energy that can be stored. One possible method of storing solar energy is by heating water that can be insulated. The water is heated by passing it through hollow panels. Black-coated steal plates are used because dark colours absorb heat more efficiently. However this method only supplies enough energy for activities such as washing and bathing. The solar panels generate "low grade" heat, that is, they generate low temperatures for the amount of heat needed in a day. In order to generate "high grade" heat, intense enough to convert water into high-pressure steam which can then be used to turn electric generators there must be another method. The concentrated beams of sunlight are collected in a device called a solar furnace, which acts on the same principles as a large magnifying glass. The solar furnace takes the sunlight from a large area and by the use of lenses and mirrors can focus the light into a very small area. Very elaborate solar furnaces have machines that angle the mirrors and lenses to the sun all day. This system can provide sizeable amounts of electricity and create extremely high temperatures of over 6000 degrees Fahrenheit. Solar energy generators are very clean, little waste is emitted from the generators into the environment. The use of coal, oil and gasoline is a constant drain, economically and environmentally. Will solar energy be the wave of the future? Could the worlds requirement of energy be fulfilled by the "powerhouse" of our galaxy - the sun? Automobiles in the future will probably run on solar energy, and houses will have solar heaters.

Animal Farm, Great Expectations, and an Outpost of Progress Essay Example

Animal Farm, Great Expectations, and an Outpost of Progress Essay Example Animal Farm, Great Expectations, and an Outpost of Progress Paper Animal Farm, Great Expectations, and an Outpost of Progress Paper Essay Topic: Animal Dreams Animal Farm Great Expectations The answer is simple, the use of satire. From the moment Pip is introduced, to the point in which him and Estella supposedly fall in love, Dickens has placed his sense of satire to please the readers sense of feelings for the characters. This young boy named Pip was not raised in the richest family in the world, so he is elated that his uncle has set him on a meeting with one of the wealthiest old woman In England. Upon arrival a beautiful little girl about his age welcomes him. The old woman, Ms. Having, tells this little girl, Estella, to play with Pip and show him the ropes of being In a high-class society. More Importantly Ms. Having tells Estella to somewhat fall for Pip, and It works. As the reader you see the Irony that this Is all a ploy to destroy a little boys state of mind, and to break his heart which Is stated In this passage, Well, I thought I overheard Miss Having answer- only it seemed so unlikely- Well, you can break his heart. (Dickens 61 ) But Dickens wants Pip to feel the irony, so what better way to do it than having the girl of is dreams tell him, You must know, said Estella, condescending to me as a beautiful woman might, that I have no heart. (Dickens 235) It is a perfect way to leave the reader double-checking all that they read, and it is an even better way of introducing a little chaos in the story. Animal Farm, In short, Is about the time and events of World War II and the Russian Revolution. If a reader doesnt know this then they might not have gotten the irony and chaos presented by George Orwell. For example, after Mr.. Jones was over heron from his own far m, the animals took over; more specifically the pigs took charge. The pigs, including Snowball and others, decided they where smarter and Tanat teen snouts run ten Tara. Nine animals as a wangle Ana agreed, ten Irony, ten pigs sat around and encouraged the animals to work while they reaped the benefits. These leaders had become dictators. Orwell was able to take some of the worst stories and people of the time and turned them into animals. By saturating his story, people could distance themselves from the horrors of war. It was almost as if he wrote a fairy tale for adults. Animal Farm is a story full of saturating from point A to point B and is used in what seems to be every last sentence. A simple quote from the book showing satire, All animals are equal but some animals are more equal than others. (Orwell) The saturating in Outpost of Progress is very easily seen, Just read the title. Even more ironic than the title is that the two main characters, Asserts and Carrier, are probably the laziest people ever put into a story. And of course these lazy men set the stage for a tale meant to be about progression, which, there seems to be none of. When the story takes place, it is during the time of colonialism in Africa, which is where the story is taking place. Through out the book these men are supposed to sell things to the tribesmen and people around their outpost. But due to the lack of people in the area things Just tend to sit in the shop and the two men Just sit. So what happens when there is only one cube of sugar left for their daily cup of coffee? Simple, the lazy men actually have to fight for it. Had this happened at the beginning of the story these men would have stuck to their morals and not have even thought of sighting over something so stupid. But being in this heat, without friends or loved ones tears them down limb by limb. The only progress in the entire story is the death of both of the men, over a cube of sugar. It is like Conrad meant for this story to be written based purely on saturating stating this in the book, The courage, the composure, the confidence; the emotions and principles; every great and every insignificant thought belongs not to the individual but to the crowd: to the crowd that believes blindly in the irresistible force of its institutions and of its morals, in the rower of its police and of its opinion. (Conrad, page 193) It is easy to conclude that satire is something that is placed in many books for the enjoyment of the reader. Without it many story lines would be dull and not worth reading. So for the sake of expressing their inner humor, authors insert satire where they can. As stated, Great Expectations, Animal Farm, and An Outpost of Progress are clear reminders of great and timeless stories that without some of the corruption and irony wouldnt be the classics they are today.

The Evolutionary Changes in Construction Between the De Havilland Essay

The Evolutionary Changes in Construction Between the De Havilland Comet and the Airbus A380 Aircraft - Essay Example In addition, the jetliner also had a large square window and a pressurized fuselage. Regarding the era, the Comets provided a comfortable passenger cabin. It made its first commercial debut in 1952 where it flew without any problem. Its successful debut as a commercial jet helped drew passengers from all parts of the country with an interest in using the Comets as their preferred choice of flight. However, the success stories of the Comets did not last long since the airplane began experiencing problems just a year after its commercial service debut. In fact, three of the Comets broke up while, on flight resulting in an accident, that received wide publication by the media, according to Montagu-Pollock (2012). Investigations that followed showed that the accidents occurred due to catastrophic metal fatigue that the manufacturing engineers did not understand property at the time of its manufacturing. This prompted the withdrawal of the Comet from service after which it was taken for e xtensive testing to unearth the real cause of the accident. Investigations showed that the accident had initially been wrongly blamed on poor weather. Instead, design flaws were identified, which included dangerous installation methodology, and dangerous stresses at the corners of the windows. As a result, the Comet was modified with oval windows and structural reinforcements among many other changes, notes Nolan (2010). The other rival manufacturers of aircrafts learnt from the Comet and began making improvements in their while manufacturing processes avoid the mistakes made during the manufacture of the first Comet. Overview of the construction design of the Comet The first De Havilland Comet was made entirely of metal low-wing cantilever monoplane, observed Montagu-Pollock (2012). They had four engines, two of which were mounted below the wings for powering the plane. The two engines were buried under the wings to prevent the drag of podded engines, as well as to give room for sm aller fin and rudder. The mounting of the engines higher in the wings was also meant to reduce the risk of injection damage, which had been a major problem associated with turbine engines. It also had four-place cockpits for two pilots, navigator, and a flight engineer (Nolan 2010). Unlike the features of the aircrafts of the time, the first Comet had a clean low-drag design, which included the swept-wing leading edge, four-wheel bogies, and integral wing fuel tanks. The original De Havilland Comet measured almost the same length as the later Boeing 737-100. However, it carried fewer people in a spacious environment than the Boeing 737-100 (Birtles 1990, p.11). The British Overseas Airways Corporation (BOAC) installed 36 reclining ‘slumber seats’ with center measuring about 45-inches allowing for a greater leg space both behind and in front. Air France, on the other hand, was fitted with 11 rows of seats plus four seats installed on its comets. The plane also had tables where passengers can have the feeling of enjoyment and comfort. Amenities included a large galley capable of serving hot and cold cuisines and drinks, according to Ron and Patterson (2010, p.19). It also had toilets for both men and women. Because of the safety concerns, the airplane had an emergency section, which included several life rafts kept in the wings, just next to the engines. However, after encountering problems while, on flight, several improvements have been made to ensure that such accidents do not occur

Case study Essay Example | Topics and Well Written Essays - 1750 words - 8

Case study - Essay Example MDCM is in urgent need to take suitable steps for improving its IT setup to save the company from getting into continuous loss. The company has been suffering loss in the market in spite of all its steps and strategy designed for the customers and company’s benefit. The company shares its benefits and losses with the customers in order to form close relations with the customers. With the passage of time, the company has identified the importance of its global status. This paper evaluates the IT projects suitable for the company and presents recommendations for the MDCM Corporate Board. There was a large audit to find out the IT problems with the company in the past five years. This audit was very fruitful as it informed all the seniors about the IT issues with the company. They had some knowhow beforehand but the detailed audit informed them about the situation of the company in depth. According to the audit report, â€Å"MDCM’s IT services had been badly mismanaged† (Jeffery & Norton 2). IT was not working effectively because of this mismanagement. IT was neglected by the management of the company and also wrong investment decisions were taken related to IT due to which, IT suffered a lot and became a reason for giving loss to the company (Jeffery & Norton 2). A global setup for IT was required by the administration of the company. The audit also resulted in some positive outputs such as the customer relationship management (CRM) system and computer assisted design (CAD) system in branches of MDCM working successfully. IT budget was less as compared to its required amount for the upgrade of the company’s IT. There were many project initiatives which were regarded essential for the company’s IT success. Unifying methodology and technological standards was regarded necessary by Atkins and his team. By improving this project initiative, the administration hoped to adjust a sharing knowledge based network and also the future

Aviation security Research Paper Example | Topics and Well Written Essays - 2250 words

Aviation security - Research Paper Example Reports from the radar signal imply that, before the crew lost contact with the Air traffic controllers, the flight might have turned around. The international investigators who were searching for the missing plane released a report in which they indicated the prevalence of rough conditions which did not allow for effective search of the plane such as deep water in the Indian Ocean and remote location. The search was commenced in the South China Sea and Gulf of Thailand since it was the area in which the plane was missed on the secondary surveillance radar. After analysis of the path the flight might have taken, the search team shifted their efforts to the southern part of the Indian Ocean by narrowing their areas to 60,000 km2 of West of Australia. The search on this area was utterly unfruitful. There was no indication of any flight debris or a crash site. As such, the there was no official theory which was formulated by the authorities that could have aided in the search for the missing flight. As a result, there were informal many theories and speculations of what happened to the plain. There are no reports on where the plane might be or whether the passengers and the crew members are still alive despite month of searching. The search effort for this plane is of a multinational dimension which has turned out to be the most expensive and largest search efforts in history. There has been diverse theories and misconception about the causes of disappearance of the Boeing 777. Some of the theories indicate that the plane was shot down due to military conflicts between Thailand and the United States in the South China Sea. This theory is developed in Nigel Cawthorne’s Flight MH370: The Mystery. In his theory, the shoot down might have been accidental. Another theory is the â€Å"9/11 theory† that has been widely spread in the internet. The theory originated from Christopher Green of

Development Of Italian Neorealism Film Studies Essay

Development Of Italian Neorealism Film Studies Essay Italian neorealism developed as a particular form of cinematic expression during the period when Italy was ruled by the Fascists. Italian neorealism developed under onerous circumstances and became a form by which Italian filmmakers could express themselves in a new way. Essentially, the early neorealist filmmakers were doing what they could with the tools at hand and doing it under the watchful eyes of an antagonistic ruling class, From the tensions this arrangement produced, they created something distinctive, allowing them to develop ideas and to do so in a new cinematic style. At the time, Italy was ruled by fascists, who viewed art as valuable only to the degree it was useful. Yet, these films were not made in service of fascist ideas but as a counter to them. The forces that helped shape these films, the style that was produced by these tensions, and some important examples demonstrate the vitality achieved by Italian directors as World War II ended. One of the best-known of what would be called the neo-realist approach to film was Roberto Rossellinis Open City (1945), and many of the characteristics of the movement were evident in this film. These films had an anti-establishment, revolutionary attitude. They had an extemporaneous, documentary quality enhanced in the early era by the materials from which they were madewar-time film stock, cobbled-together equipment, non-professional actors, and location shooting. Open City is a good example of this early period in neorealism, while Vittorio De Sicas The Bicycle Thief (1948) is an expression of the fully developed tradition from the period after the expulsion of the fascists and after the end of World War II. These two films display a challenge to the establishment of the time and a social consciousness that delves into the reality rather than the image of the nation. For this reason, neorealism encountered hostility from the established forces because these films portrayed Italy in a realistic and critical way that was not the sort of image the establishment wanted for the country, particularly to be presented to the outside world. Bondanella sees the development of neorealism as a high point in the history of the film and one that would be highly influential to later works and movements. Bondanella cites critic Andre Bazin, who called neorealism a cinema of fact and reconstituted reportage' which offered a message of fundamental human solidarity fostered by the anti-fascist Resistance. Bazin says that these works often embodied a rejection of both traditional dramatic and cinematic conventions. The filmmakers most often employed on-location shooting rather than studio sets and used nonprofessional actors and documentary effects. Leprohon emphasizes that this cannot be considered a coherent movement in the sense that it created rules or even theories followed by the filmmakers. Rather, the filmmakers were merely trying to express themselves individually in a way that was in the air: Essentially, neo-realism was a product of political and social circumstances. And it is in this revolutionary aspect of neo-realism that I should like to discuss first of all. Before it existed in its own right, with definite aims and sectarian interests, neo-realismwhich was still namelesswas opposed to a state of affairs which increasingly stifled and oppressed the expression of trutha state of affairs that existed . . . long before the Fascist era.   Leprohon notes that the neorealistic style had as its underlying aim making the cinema an extension of the literary realism that had developed at the end of the 19th century. Leprohon looks back at this literary history and finds a precedent for the new form of cinematic expression: Neo-realism was thus a revival of the Risorgimento, the unfinished revolution which the young polemicists intended to complete, while at home and abroad the regime was giving increasingly clear signs of its imminent collapse. Neorealism was itself a revolution. Liehm sees many of the young filmmakers of the time as conscious revolutionaries seeking artistic truth in cinema because the literary scene was too disorganized and scattered to be an effective vehicle:   The struggle had to originate where the strongest weapon was, carried out by film artists whose work was centered in the major cities, mainly in Rome. After twenty-seven years of fascism, no other medium had the stamina to create a social context for a new artistic movement.   Visconti brought the setting of Italy to life, and setting would be an important component in neorealistic films. He made changes from the original Cain story that are significant in showing the intent of the filmmaker. Cains story is naturalistic, with characters encountering the accidental and failing in the face of arbitrary but not divine justice. For Visconti, this is not the way the universe operates; instead, he sees a tragic outcome deriving from the necessary logic of the situation into which the characters are thrown:   Turning Cains parable of arbitrariness into a demonstration of necessity required, however, more than a simple alteration of plot mechanics. It meant creating a new structured framework in which to define the actions of the characters, and consequently making the characters themselves different.   Though the Fascists had accepted the story, they did not accept the finished product, and the censor refused to pass it. The young filmmakers objected and approached Mussolini, who saw nothing objectionable and passed it. However, when the last Mussolini government took refuge in the North, its members took the film with them in a cut version and destroyed the negative. The prints in existence today are from a duplicate possessed by Visconti. Ironically, the film was long unavailable in the West for quite a different reasoncopyright problems because of Cains novel. This element of the social statement was an important component in the leading neo-realist films, and indeed this element was feared by the fascists, who did not want their society depicted in any but the best light. With the end of Italian fascist rule, a different set of critical rulers was put in place. Roberto Rossellinis Open City is a film about Rome during the period of the German occupation, and the conditions under which the film was shot mirror the situation in the film itself.   The film was also important for what it said to the world of film: It so completely reflected the moral and psychological atmosphere of this historical moment that it altered both the public and the critics to a new direction in Italian film. The conditions of its production (relatively little shooting in the studio, film stock bought on the black market and developed without the normal viewing of daily rushes, postsynchronization of sound to avoid laboratory expenses, limited financial backing) did much to create many of the myths concerning neorealism.   Rome at the time was a just-opened city, in that the Germans had just left, and the effects of the Nazi occupation were clearly still felt and contributed to the metaphoric meanings attached to the film. Much of the sense of the title is ironic, in that Rome was not yet an open city at all in the time frame of the film, though that was the condition wished by the people and newly experienced by the filmmakers, who had themselves prayed for that release from the enclosure of the Nazi occupation. The period of the occupation is evoked as a time of great difficulty and trouble, and the term open city then had a different meaning, in that the police wore armbands proclaiming Rome an open city, meaning it was not to be a military target based on the international rules of war. Although the police proclaimed the city open, it was actually a city tightly enclosed by martial law under the Germans. The penalty for nearly every infraction was death, giving the city the aura of an enclosed grave much of the time. Openness thus sometimes has a literal meaning, sometimes a metaphoric meaning, and sometimes an ironic meaning, in that the actuality belies any openness at all.   The contrary nature of the title is evident in the American release version of the film, which begins with an explanation of the problems facing the filmmakers when they made the film, including having to shoot without proper equipment, behind locked doors, and out of sight of the remaining Nazis until the Germans were finally gone from the city. Certainly, this description does not imply openness at all, but it does imply an attempt on the part of the filmmakers to create an openness through their art. In the opening scene, as the Italian partisan, Giorgio, flees his home when the Nazi soldiers arrive, Rossellini contrasts the interior and the exterior, the intrusion of the Germans and the escape of Giorgio, in a way that challenges different ideas about openness. Giorgio has been enclosed in his home, though viewers first see him emerging into the openness of the exterior. He peers down through a crack in the roof to see the Germans as if they were in a small box. In truth, they are standing before his door. The interior of the apartment seems dwarfed by their presence, and they are therefore all the more enclosed by the walls and doorways that seem too small to hold them as they search the apartment. Ironically, the man hunted, a man clearly not free, is out in the open air, while the hunters, who presumably are free, are enclosed within the confines of his apartment. Immediately after this sequence, the explanation of the term open city is given as the commander of the German occupation uses a map to explain that the open city is divided into 14 zones, making controlling the populace with a minimum of force easier. The map itself encloses the open city, and the way the Nazis live in the city also belies its openness as far as they are concerned. Major Bergmann is asked how he met Giorgio, and he says in the usual wayhe met him when he was across the desk from him in the same room, for Bergmann takes pride in being able to bring anyone to his office that he wishes and in himself never leaving that office. He indeed states that he takes a stroll through the city every afternoon without leaving his desk. He is enclosed in his warped task and keeps himself as widely separated from the city and the people as possible. The Nazis in general treat the city as something they pass through, not something of which they are a part. They clearly do not belong, just as they seem out of place in Giorgios apartment, squeezed by the walls as if the walls want them out. The office of Bergmann is no more hospitable, although it is much larger, and he and the Police Commissioner stand and talk together awkwardly, stiffly, with the map of Rome between them, the map divided up by the boundaries of the 14 zones. The Nazis have closed themselves off from the city they occupy, maintaining quarters distant from the people of Rome, avoiding contact, and indeed living separately because that is a mandate imposed on them by their leadership, fearful of fraternization and collaboration on any scale. Scene after scene creates an ironic contrast between the idea of Rome as an open city and the reality of different kinds of closure. The people mass in the streets before shops trying to buy food, yet those shops are closed, with nothing to sell. The streets are open, but the buildings are truly closed, with no provisions and little hope of a changed situation in the near future.   The film presents a certain tension, however, between the realism of its city streets and the underlying attitude taken by the director toward the material: The tone of the work is thus far more indebted to Rossellinis message of Christian humanism than it is to any programmatic attempt at cinematic realism. The good characters are set sharply apart from the corrupt ones by their belief in what Francesco calls an impending springtime in Italy and a better tomorrow: Marina is corrupted by Ingrid not because of political convictions but because she lacks faith in herself and is therefore incapable of loving others.   Cesare Zavattini, who co-wrote The Bicycle Thief with De Sica, is noted as the theoretical founder of Neo-Realism. As early as 1942 he called for a new kind of Italian film that would abolish contrived plots, take to the streets for its material, and do away with professional actors. According to Zavattini, plot was inauthentic because it imposed an artificial structure on everyday life. The unemployed family man in The Bicycle Thief and his son are the lead characters and both are non-actors who were coached by De Sica. Vittorio De Sica directed The Bicycle Thief in 1948, and, although this was after the war and after the expulsion of the Fascists, the film is infused with De Sicas bitterness that few things had changed in society:   While Rossellini was searching for subjective freedom of facts, De Sica tried to find their human face. He discovered it not in the exceptional sorrow of the war but in the misery of daily life where the war was just one aspect of the human lot.   De Sica had trouble interesting any producers in a story about so trifling a subject as the theft of a bicycle, and he had to raise the funding himself by traveling all over Europe.   Though the film is clearly critical of the social conditions of the time and challenged the authorities as a consequence, it is much more than a social document or tract. De Sica sees the problem in the psychology of the people as much as in the structure of their society. He shows bureaucrats, police officials, and church people who have no understanding of the main characters dilemma in having lost his bicycle, and he also shows that members of the mans own class are no more sympathetic towards him.   Bondanella states that De Sica sees a world in which economic solutions are ultimately ineffective in curing what is a meaningless, absurd, human predicament: De Sicas carefully contrived visual effects underline the hopelessness of Riccis struggle, not merely the economic or political aspects of Italian society which have supposedly produced his dilemma.   This is a double indictment of society, including as it does the people themselves as well as the establishment, and such a bleak view had to have an effect on the viewer. Certainly, this was not the picture of Italy that the authorities wanted to have presented to the world. In truth, De Sicas view was not that the authorities themselves were to blame:   Social reform may transform the immediate situation De Sica described in 1948. Economic development will indeed change a society in which a stolen bicycle may signify hunger and deprivation. But no amount of social engineering or even revolution, De Sica seems to imply, will alter the basic facts of lifesolitude, loneliness, and alienation of the individual within the amorphous and unsympathetic body of humanity.   Alfred Bazin was one critic who did not agree with De Sica on this point and who saw The Bicycle Thief as an indictment of the authorities. Bazin called the film the only valid Communist film of the whole past decade. Bazin also said the film represented a new form of pure cinema, a cinema with no actors, no sets, and no storyline in the traditional sense. Open City before had made use of real locations but had included actors and a more traditional storyline. The Bicycle Thief is thus the film that most represents what the world would come to see as the essence of neo-realism. It was also the beginning of a tradition that would be followed by others. The post-war government did not try to exercise the kind of control the fascists had wielded, and the establishment must have felt some ambivalence about a film that, on the one hand, criticized the establishment and all of Italian society in a stark and effective fashion and, on the other hand, brought acclaim and attention to the Italian film industry when it was praised and rewarded around the world. Italian neorealistic directors expressed their antipathy to either the structure of their society or the ways in which that society was controlled and directed in a variety of ways. Rossellini in Open City and De Sica in The Bicycle Thief each created a new form of cinematic expression, related in their underlying intentions and in certain stylistic elements that link them even as other stylistic and thematic elements make them very different from one another. All challenged the prevailing establishment, however, and involved images and themes that many in authority believed did not r eflect well on Italian society. These two films taken together contributed to the mythic view taken of the neorealist period. Open City was shot in a way that was new and different and that inspired a generation of filmmakers, including De Sica, who carried aspects of neorealism to a logical end.

The Impact of Women in The Iliad Essays -- Role of Women in the Trojan

Women have always been recognized for their strong influence on the actions of men. Because of his love for Delia, Samson told his secret of his power and ended up losing it. In Shakespeare's Macbeth, Lady Macbeth urged Macbeth to commit murder. More recently, Eleanor Roosevelt strongly influenced the decisions that Franklin D. Roosevelt made. Women of Homer's epic, The Iliad, were considered primary instigators of the Trojan war. The characteristics attributed to women in ancient Greek mythology may have been key to the outbreak of the war. But many ask why Homer would choose to reflect so deeply on the feminine roles of this war fought by men. Although the beginning of the war was not spoken of in The Iliad, the origin of the war is traced back to jealous goddesses. The gods and goddesses were feasting together to celebrate the marriage of Peleus and Thetis. Eris, the goddess of discord, had not been invited. She came, however, and threw among the guests a golden apple, on which was inscribed "For the fairest." Three goddesses claimed the apple. They were Hera, wif...