Oates

â€Å"Where Are You Going, Where Have You Been?† Joyce Carol Oates’s Where Are You Going, Where Have You Been? is an intriguing polarity of a girl’s story about growing up and an inauspicious fantasy. The hero in this story is Connie, a vain little youngster with an affinity for trashy dreams; while Arnold Friend is her opponent, a shrewd power in all likelihood, the Pied Piper or the Devil. Their communication and foreshadowed minutes carry the story to its unavoidable sad end. The character of Connie will be the first investigated. Connie is set up in the start of the story as a vain, shallow daydreamer. It’s these blemishes that achieve her fall. In the principal passage, her vanity is plainly shown: â€Å"†¦ extending her neck to look into mirrors or checking different people’s appearances to ensure her own was all right.† (p.60) She considers little else aside from thoughtless fantasies, which wind up hurting her later on: â€Å"†¦ dreaming about the young men she met.† (p.62) â€Å"Connie couldn’t do a thing, her psyche was totally loaded up with trashy daydreams.† (p.60) Connie capitulates to her â€Å"trashy dreams† as the malicious element that has come to remove her. She is allured by method of her vanity and errors passing for a sexual sentiment of a trashy kind; such a lethal fascination in the underhandedness of Arnold Friend. Arnold Friend is a sexual swaggart masked as a definitive trashy dream-James Dean: â€Å"†¦he had shaggy, ratty dark hair†¦Ã¢â‚¬  (p.63) â€Å"†¦tight blurred pants stuffed into dark scraped boots, a belt that pulled his midsection in†¦ a white draw over shirt†¦ indeed, even his neck looked muscular†¦Ã¢â‚¬  (p.65) He generalizations the perfect dissident that Connie would need. There are likewise pieces of information that Arnold Friend’s genuine character is that of the Pied Piper. Music and sounds are continually repeating in the story, luring Connie each time into a fantasy where everything appears to be incredible: â€Å"†¦charm support... Oates Free Essays on Where Are You Going, Where Have You Been/Oates â€Å"Where Are You Going, Where Have You Been?† Joyce Carol Oates’s Where Are You Going, Where Have You Been? is an intriguing division of a girl’s story about growing up and a terrible fantasy. The hero in this story is Connie, a vain little youngster with an affinity for trashy dreams; while Arnold Friend is her adversary, an abhorrent power in all probability, the Pied Piper or the Devil. Their association and foreshadowed minutes carry the story to its inescapable awful end. The character of Connie will be the first investigated. Connie is built up in the start of the story as a vain, shallow daydreamer. It’s these defects that realize her fall. In the main section, her vanity is unmistakably shown: â€Å"†¦ extending her neck to look into mirrors or checking different people’s countenances to ensure her own was all right.† (p.60) She considers little else aside from careless fantasies, which wind up hurting her later on: â€Å"†¦ dreaming about the young men she met.† (p.62) â€Å"Connie couldn’t do a thing, her psyche was completely loaded up with trashy daydreams.† (p.60) Connie capitulates to her â€Å"trashy dreams† as the underhanded substance that has come to remove her. She is tempted by method of her vanity and errors demise for a suggestive sentiment of a trashy kind; such a lethal fascination in the abhorrence of Arnold Friend. Arnold Friend is a sexual swaggart masked as a definitive trashy dream-James Dean: â€Å"†¦he had shaggy, ratty dark hair†¦Ã¢â‚¬  (p.63) â€Å"†¦tight blurred pants stuffed into dark scraped boots, a belt that pulled his midsection in†¦ a white draw over shirt†¦ indeed, even his neck looked muscular†¦Ã¢â‚¬  (p.65) He generalizations the perfect dissident that Connie would need. There are likewise intimations that Arnold Friend’s genuine character is that of the Pied Piper. Music and sounds are continually repeating in the story, alluring Connie each time into a fantasy where everything appears to be incredible: â€Å"†¦charm support...

Web Services Security Essay Example | Topics and Well Written Essays - 1000 words

Web Services Security - Essay Example Each business needs to utilize web benefits and expand it past the limits of their association. This requires new security requests and arrangements. Research of the writing accessible proposes that innovation is being redesigned normally. It is conceivable to keep the web administrations secure in spite of the fact that for little associations it might be exorbitant. In particular, the web security merchants need to consent to a norm. Most web administrations have the security bundles in-assembled while Microsoft additionally permits free downloads. In any case, as innovation grows so does the endeavors and innovation of the programmers and digital crooks. Information break coming about because of feeble security practices can bring about confronting claims from the government and state organizations. This can thus dissolve business value, purchaser trust and at last the business notoriety. Making sure about XML has an assortment of issues and is helpless against an assortment of as saults. There are excesses of web administrations security sellers however they need to publicize their messages in the correct way (Rowan). In the web administrations world all the sellers need to consent to a standard yet various gatherings have developed. Kicking back and bounteous reports about one another can be found albeit all are progressing in the direction of confirming the gauges. Machine to machine correspondence represents a danger. Web administrations security can check the cause of the messages yet this requires all individuals from the gathering must be known to one another.

Tips For Successful Autumn Writing Paper

Tips For Successful Autumn Writing PaperStudents who have just started in college may be not aware of Autumn writing paper. However, this is the most important part of a college course that is based on various topics. This is where the students write a paper based on their ideas and facts.Writing up the ideas from the previous lessons is very easy but one must be careful on all the themes and ideas to make it successful. When writing for Autumn writing paper, the topic of the course should be based on some new ideas and new events that are happening all over the world. The ideas can be related to a certain subject or can be about some matter which is happening among different people from different places. So, students should be creative and be imaginative to be able to come up with something new.Students should start working on their topic on the same day they start attending classes. They can then write the paper as per their convenience and style. Once they finish their writing and start to check it, the professor will start giving their comments and criticisms. In order to improve, the writer must be open to ideas and suggestions. Therefore, students should be ready to read the lecture materials which gives them more information regarding their topic.Students who feel that their topic is incomplete should write down any ideas that they may have that can be included in the topic. They should write a summary of their ideas before writing their main thesis statement. Once they have finished their theme, they should go through the lecture materials again and go through the other lecture materials that can help them in writing the final paper.Another useful tip to write a paper in the Autumn term is to try writing in the present tense instead of using past tense. This will help the students to save time that they spend researching. They can also make their notes using the present tense, since this is the way how the students usually write in the present.The stude nts can also use a writer's block and try to convince themselves that it is not a big mistake to write the paper. Therefore, they should keep writing regardless of whether they feel a word is incorrect or not. Just keep writing until the professor gives them his or her final approval. This is an important factor for every student as well as a good suggestion for writing Autumn writing paper.Students should always remember that a good idea can also get lost because of the busy schedule of life. Therefore, students should be very responsible and work hard to complete the task at hand. It is good for the students to prepare themselves for writing so that they do not get disappointed when they are assigned the writing assignment.Students who do not follow the above mentioned tips in writing, may be discouraged and may lose the motivation for writing. However, writing an Autumn writing paper is not that hard to do as long as the students have the right tools and guidelines. Besides, as l ong as they keep studying and learning the skills that they need to be able to write a good paper, they will surely succeed in their goal.

Feminism in Like Water for Chocolate by Laura Esquivel Essay

Feminism in Like Water for Chocolate by Laura Esquivel There are many different definitions of feminism. Some people regard feminism as the idea that women deserve the same amount of respect that men deserve. There are the other schools of feminist thought that hold women superior to men. Yet another believes that the gender roles controlling women are artificially created and not innate knowledge, and thus men and women are equals with only history the determining factor and how gender equality is established. There are clear feminist overtones in Like Water for Chocolate by Laura Esquivel. Esquivel pointes to a more radical definition of feminism in Like Water for Chocolate. The story focuses on mostly female characters that assume†¦show more content†¦Mama Elena goes on, for better or worse, attempting the best she can to raise a family in the tumultuous time of the Mexican revolution. She struggles against her rebellious daughter in her own attempt to keep her family’s heritage and traditions alive. Not only does she raise a family but she also runs the ranch on which the live and on derive their sustenance. Early on in the novel we see that Esquivel presents a character that deserves the same amount of respect normally giving to a male character in this same role. By placing this normally male role in a woman Esquivel questions the typical role of the woman in a home of just raising children by bestowing additional responsibilities. We see elsewhere in the novel the strength in Gertrudis, Tita’s sister. Gertrudis escapes the ranch after reacting mysteriously to one of Titas recipes. She runs away with a rebel soldier, works in a brothel at the Mexico-Texas border, and eventually returns to the ranch as a general in the revolutionary army. Here we witness the creation of a second strong female character. When we first see Gertrudis we see just another female character. But after her return we find that she has become a leader of in the revolution. Again Esquivel takes a potion that is typically male associated and fills that role with and equally respectable female character. There is then the focal character, Tita. Tita is the pivotal character in defining Like Water for Chocolate as a feministShow MoreRelatedRadical Feminism in Like Water for Chocolate Essay737 Words   |  3 Pagesof feminism. Some people regard feminism as the idea that women deserve the same amount of respect that men deserve. There are the other schools of feminist thought that hold women superior to men. Yet another believes that the gender roles controlling women are artificially created and not innate knowledge, and thus men and women are equals with only history the determining factor and how gender equality is established. There are clear feminist overtones in Like Water for Chocolate by Laura EsquivelRead MoreThe Significance of Blurred Gender Roles for the Key Male Characters in ‘Kitchen’ and ‘Like Water for Chocolate’1724 Words   |  7 PagesWORLD LITERATURE ASSIGMENT ONE The significance of blurred gender roles for the key male characters in ‘Kitchen’ and ‘Like Water For Chocolate’ Word Count: 1497 Banana Yoshimoto’s novella ‘Kitchen’ and ‘Like Water For Chocolate’ by Laura Esquivel explore the blurring of gender roles through the characterisation of the key male characters, Eriko and Pedro. The obscurity of gender roles is utilised by both authors as a literary tool in the formation of interpersonal relationships with the protagonistsRead MoreEssay On Like Water For Chocolate1619 Words   |  7 PagesLike Water for Chocolate essay Recognizing personal strengths and weaknesses is part of the ongoing process of bettering ourselves. In the novel, Like Water for Chocolate by Laura Esquivel, she explains the strengths and weaknesses over the character named Tita De la Garza. Within the context, Laura Esquivel develops Tita’s emotions through feminity. Tita is the novel’s protagonist, struggles her needs for belonging and security. As well as her desires for adventure, sex, and liberation. In LikeRead More`` Like Water For Chocolate And The Bluest Eye ``1696 Words   |  7 PagesLaura Esquivel and Toni Morrison portray the limitations that are placed on young women as a result of expectations of the female’s role of what it is to be a woman of a particular race in family or society, through their enthralling novels, Like Water for Chocolate and The Bluest Eye. The role of being a woman is heavily suppressed upon females in our society and this concept is analysed in different notions of two ve ry different women with different personal worlds and self values. The idea ofRead MoreFeminsim in Like Water For Chocolate by Laura Esquivel Essay1227 Words   |  5 Pagesauthor of Like Water for Chocolate depict her feminist views and how do they contribute to two different themes of the novel? In the novel Like Water for Chocolate, Laura Esquivel exposes her strong feminist attitude through a controlling first person limited narration and a detailed, descriptive portrayal of the characters. This exploitation of feminist views supports two major themes: change in traditional attitudes towards authority and freedom of expression. In this novel, Laura Esquivel showsRead MoreSeason of Migration to the North by Tayeb Salih1919 Words   |  8 PagesCultural Feminism vs. Post Colonized Feminism Being a Feminist and having a Feminist point of view in observing every cultural, social and historical issue had been translated as having a feminine centered and anti-masculine perception. Unlike the general and common knowledge about feminism, it is not only an anti-masculine perception towards social and individual issues. Feminism according to Oxford dictionary is the theory of the political, economic and social equality of the sexes that more commonlyRead MoreLike Water For Chocolate By Laura Esquivel1990 Words   |  8 PagesEssay Like Water for Chocolate Essay Recognizing personal strengths and weaknesses is part of the ongoing process of bettering ourselves. In the novel, Like Water for Chocolate by Laura Esquivel, she explains the strengths and weaknesses over the character named Tita De la Garza. Within the context, Laura Esquivel develops Tita’s emotions through feminists. Tita is the novel’s protagonist, struggles her needs for belonging and security. As well as her desires for adventure, sex, and liberation.Read MoreCharacter Analysis Of Like Water For Chocolate By Laura Esquivel1988 Words   |  8 Pagespart of the ongoing process of bettering ourselves. In the novel, Like Water for Chocolate by Laura Esquivel, she explains the strengths and weaknesses over the character named Tita De la Garza. Within the context, Laura Esquivel develops Tita’s emotions through feminists. Tita is the novel’s protagonist, struggles her needs for belonging and security. As well as her desires for adventure, sex, and liberation. In Like Water for Chocolate, it simply explains that there is no such thing as a good or badRead MoreLike Water For Chocolate By Laura Esquivel1660 Words   |  7 PagesLike Water for Chocolate by Laura Esquivel 1. a) In Like Water for Chocolate the novel deals with issues such as family relationships, the plight of women, sex, love, feminism, religion and to some extent morality. b) The author takes on a wide scale of real world subject and matters c) The characters as well as the plot are finely detailed. Each character serves are purpose whether they are functional or decorative. 2. a) The initial state in Like Water for Chocolate is when Tita is saddenedRead MoreEssay on Like water for chocolate6961 Words   |  28 PagesLike Water for Chocolate ~Laura Esquivel~ Ms. Diamond Name_________________________________ Magical Realism At about the middle of the 19th century (when scientific objectivity became â€Å"vogue†), the influence of many social forces caused aesthetic taste to change from romantic idealism to realism. Many writers felt that romantics—with their focus on the spiritual, the abstract, and the ideal—were being dishonest about life as it really was. The realists felt they had an ethical responsibility

The Future Of Renewable Energy - 1709 Words

Currently the United States depends heavily on coal, oil, and natural gas for a majority of its energy. Fossil fuels are non-renewable, and they draw on limited resources that will eventually diminish and become too costly or too environmentally damaging to reclaim. In contrast, the many types of renewable energy resources-such as wind and solar energy-are regularly replenished and will may never run out. Most renewable energy comes either directly or indirectly from the sun. Sunlight, or what is referred to as solar energy, can be used directly for heating and lighting homes and other buildings. It may also be used for producing electricity, hot water heating, cooling, and a variety of commercial and industrial uses. The sun s heat also†¦show more content†¦But it doesn t occur naturally as a gas. It s always combined with other elements, such as with oxygen to make water. Once separated from another element, hydrogen can be burned as a fuel or converted into electricity. N ot all renewable energy. The sun also warms the surface of the ocean more than the ocean depths, creating a temperature difference that can be used as an energy source. This form of ocean energy can be used to produce electricity. Energy depletion patterns have changed over the history of our country as we developed new energy sources and as our uses of energy have changed. Wood served as an early form of energy until the late 1800s, even though water mills were an important energy source to some early industrial growth. Coal became dominant in the late 19th century before being surpassed by petroleum products in the middle of the last century, a time when natural gas usage also rose quickly. Since the mid-20th century, coal use has again intensified (mainly as a primary energy source for electric power generation), and a new forms of energy such as nuclear electric power which has made an increasingly significant contribution. After a pause in the 1970s, the use of petroleum and natural gas resumed growth, and the overall pattern of energy consumption since the late 20th century has remained somewhat constant. While the Country’s overall energy history is one of significant change as new forms of ener gies

Caravaggio Essay - 1069 Words

Caravaggio Michelangelo Mersi was born at Caravaggio in Lombardy on September 28, 1573. His childhood was lived in a quite atmosphere in the small town located between Brescia and Milan. Caravaggio became orphaned at a very young age, and coincidentally was sent to Milan to study painting. This is where his career started. During the Eighteen years between his arrival in Rome and his death, Caravaggio enjoyed the pleasures of being a young artist. He enjoyed the triumph of a success, the travel of lands unknown, and unfortunately disgrace, exile, and a solitary death. Caravaggio, being exceptionally intelligent, had the ability to create an ample environment for success. He was able, through some trial and tribulations, to feel†¦show more content†¦This apparent symbolism can be seen in many of his paintings. For example, The Bacchus, Goliath, Sick Bacchus, and Boy with a Basket of Fruit, to name a few. In many of Caravaggio’s works he offers his audience a head. Many of these heads were believed to be painted with of own features. As seen on the bloody head of Goliath, which David so adversely thrusts out into the viewer’s space. This not being the sole example, we can see this depiction in Judith with the Head of Holofernes, Depiction of St. John the Baptist, and Salome receiving the head of St. John the Baptist. This use of a self-portrait became a very interesting topic for many researchers and Art historians. The depiction of violence connected to Caravaggio left question to his train of thought and his emotional stability. An even more controversial subject than his violent depicted self-portraits are the provocative, seducing, erotically soliciting, gazes, that Caravaggio produced. This can be seen prominently in the early Sick Bacchus. Caravaggio’s head is rested in a provocative pose, which was to be read as a seduction to the viewer. It seems, through investigation, that Caravaggio had become enthralled in the act of painting come-ons. Although, his intent probably being fallacies, Caravaggio had a magnificent way to hinder a viewers though process, by creating ambiguity. In two of hisShow MoreRelatedCaravaggio And Religion Of Michelangelo Merisi Caravaggio1860 Words   |  8 PagesTrevor Ferguson Semester Paper Art App.1020WI Caravaggio and Religion Michelangelo Merisi Caravaggio was an esteemed Italian baroque artist whom, through his art, established various human connections to religion and his art by humanizing the holy scenes that he would depict. Caravaggio was born in 1571 in Milan where he trained as a painter before relocating to Rome. Over the years, Caravaggio had mastered his skills as an artist, using techniques such as tenebrism and chiaroscuro to become oneRead MoreCaravaggio Essay1786 Words   |  8 PagesThe Controversial Caravaggio The Italian Renaissance, which occurred between the fourteenth and sixteenth centuries, was a period of dramatic cultural change where tremendous achievements were made in literature, architecture and art. Michelangelo Merisi da Caravaggio, born in Milan, Italy on September 28, 1571, was a Renaissance artist. He is remembered for his revolutionary yet controversial art which was often deeply rooted in religion. Caravaggio painted during the Counter-Reformation whenRead MoreCaravaggio and His Life1093 Words   |  5 Pageswords that could describe Caravaggio. Most people who lived around same the time as Caravaggio would describe him as eccentric, murderous, quarrelsome, daring, defiant, and forgettable. As present-day people, we only have the artworks of Caravaggio to portray him as beautiful, insightful, religious, descriptive, innovate, traditional, and probably an â€Å"Italian Badass†. However, we must look at his paintings, his masterpieces, in order to truly unders tand who Caravaggio really was. Notorious forRead MoreMichelangelo Merisi (Caravaggio) Essay1707 Words   |  7 Pagesinteresting lives, Michelangelo Merisi, who was called Caravaggio, had the most interesting and turbulent life. Caravaggio, was born in Milan in during the late summer or early autumn of 1571. His parents, Fermo Merisi, and Lucia Aratori, had been married on January 14 of that same year. He was the first of their four children. For several generations the Mersi family had lived in the small town of Caravaggio. Caravaggio probably adapted the town name as his own when he leftRead MoreMartha and Mary Magdalene by Caravaggio884 Words   |  4 Pagesunderstanding a work of art then just looking at it. In order to understand a piece, you have to understand the Artist, the time period, and the symbols in that painting that may have very different meaning today. Michelangelo Merisi da Caravaggio better known as simply Caravaggio was an Italian Baroque master painter born in Italy around 1571. After he apprenticed with a painter in Milan, he moved to Rome, where he lived for most of his life. His work influenced painters around Europe. He’s most known forRead More Caravaggio, Death of St. Matthew Essay1515 Words   |  7 PagesCaravaggio, Death of St. Matthew Michelangelo de Caravaggio is one of the most renowned and popular artists of the Baroque Period. In fact, many paintings from this period, as well as after have been described as â€Å"Caravagesque.† Caravaggio’s works are some of the most popular in Italy, as well as around the world, and have been put into there own stylistic group. In his painting, the Martyrdom of St. Matthew, there contains certain characteristics that make the painting easily recognizableRead MoreEssay on Compare and Contrast Caravaggio and Gentileschi981 Words   |  4 Pagesother historical events, and two particular painters of the Baroque technique are Michelangelo da Caravaggio and Artemisia Gentileschi, both masters at the use of chiaroscuro (from the Italian words chiaro, meaning bright, and scuro, meaning dark), which is a painting technique that uses dark and light in dramatic ways in paintings and often adds to the realism. Michelangelo da Caravaggio (1571-1610), was a northern Italian painter that painted such amazingly realistic scenes, his workRead MoreEssay on Howard Hibbards quot;Caravaggioquot;1886 Words   |  8 PagesHoward Hibbards Caravaggio is an insightful look into the troubled mind and life of one of the most discussed artists of all time, Michelangelo Merisi da Caravaggio. nbsp;Hibbard immediately expands on his belief that Caravaggio is the most important Italian painter of the entire seventeenth century. nbsp;Furthermore, his paintings speak to us more personally and more poignantly than any others of the time. nbsp;Caravaggio is an artist whose life was far different from all other contemporaryRead MoreA Controversial Painter of Post-Renaissance, Michelangelo Merisi de Caravaggio540 Words   |  2 PagesMichelangelo Merisi de Caravaggio (1571-1610) is heralded as the last, and the most controversial painter of the Italian post-Renaissance. In an age when the papacy itself was self-indulgent, corrupt and immoral, Caravaggios sexual ambivalence, his prope nsity for violence and his scorn for the law made him the enfant terrible of the Italian aristocracy. Qualities that only succeeded in furthering Caravaggio’s notoriety and success. Caravaggios endeavors into art began In 1584 when he was apprenticedRead MoreArt History And Its Impact On Art980 Words   |  4 Pagesthere is an opposition between the idealistic and realistic and this is the first time that we can see in paintings that the main focus of the art isn’t just holy or divine perfection. Artists like Caravaggio portrayed contrast through the use of light and dark. Tenebrism is a style used by Caravaggio to emphasize the drama and realistic qualities of paintings by giving forms a sharp and sudden relief that create reality in the piece. In Caravaggio’s painting, Death of a Virgin, the men surrounding

Resourced From The Internet Future In Aerospace Industry

Question: Discuss about the Resourced From The Internet for Future In Aerospace Industry? Answer: History KWOLEK (1965) researching at the chemical company DuPont, found that that some polymers a special structure in a specific condition and thus showed extra strength. She was actually working on the shortage of petrol resources and thus was trying for creating a new fibre for tires. This had to be lightweight and strong as well. She was working on the polymers poly-p-phenylene-terephthalate and poly benzamide. Now the solution formed in such cases used to be cloudy and less viscous. But KWOLEK (1965) found something unusual about this. When this solution was stirred at high speed the fibres inside the beaker remained intact unlike those in the case of other polymers like nylons. She therefore realised that accidentally a material with exceptional properties has been discovered. But it was only after 7 years in 1971, that Kevlar was introduced commercially as a fibre material. It is a category of aramid synthetic polymers. Another similar polymer with close structural and mechanical properties is Nomex etc. Kevlar was used in the beginning only for the purpose it was discovered i.e. as the replacement for the steel tires used in automobiles. However, slowly its use has extended to military purposes or aircraft as well because now it available in sheets or spun ropes too. Structure and synthesis Kevlar is a polymer whose constituent monomers are 1,4-phenylene-diamine (para-phenylenediamine) and terephthaloyl chloride. It is produced by the reaction of these monomers in the liquid phase. This is a condensation reaction in which the two molecules condense to give out hydrochloric acid also. The polymer hence formed is crystalline even in the liquid form. These monomers react in the presence of Hexamethylphosphoramide (HMPA). Although it has now been ceased to use due to the corrosiveness of its solution in the polymer. These days a solution of N-methyl-pyrrolidone and calcium chloride is utilised for the solvent purpose. Now since concentrated acid is produced in the solution along with the polymers it complicates the process and put the polymers at the risks of being corroded. Also since the polymers formed in strands it gets separated out of the solution creates issues during synthesis. It also degrades in the presence of ultraviolet light and hence can be corroded in the presence of sunlight. This limits the usage of Kevlar in outdoor areas directly under sunlight. Mechanical Properties QUINTANILLA (1990) has found that the fibre which is formed after spinning Kevlar has a tensile strength of about 3,620 Mpa. Its density with respect to water is 1.44. The formed has various inter-molecular bonds including the high strength hydrogen bonds as depicted in the figure above. Such inter-molecular bonds lead to the formation of a very high strength polymer. These intermolecular hydrogen bonds are formed between the carbonyl groups and the nitrogen-hydrogen centres. Since there is also an aromatic stacking of the molecules of adjacent strands it gives an additional strength to the bonds .Such interactions are way stronger than the regular Van-der walls forces and therefore have a greater influence on Kevlar .These also affect the chain length which typically influence the properties of other synthetic polymers and fibres such as Dyneema. If impurities like ions of other salts are present then it can hinder the direct interaction of the molecules. This in turn will decrease the strength of the polymers. So it is made sure that polymers are pure and free of other ions. As is apparent from the figure the Kevlar's structure has planar shaped and the molecules have a very closely stacked structure which makes it extra strong. Even very low temperatures up to -196 C cannot affect the molecular strength of the Kevlar structures as may be the case of other polymers due to brittleness. In fact at times it becomes stronger as the temperature is brought down. Although increasing the temperatures could lead to some serious decrease in the strength of Kevlar maybe up to 10-20% but it still very less when compared to polymers like Nylon which might even melt at high temperatures. The above graph as cited on PRINCETON (2015) shows the Mechanical strength of Kevlar as compared to other such materials used in the industry. Advantages And Disadvantages MRAZOVA (2013) has pointed out some very important advantages of Kevlar which are listed as follows:- The strands of Kevlar are very light in weight and can reduce the overall weight of the equipment up to 20-50%. Kevlar can stay unharmed even in direct impact accidents like fired bullet so it is also used as a shield in the military. Kevlar has high mechanical strength so it can sustain damages without being broken which is very useful in accident scenarios. 4.If we use metals for hard structures they have various corrosion problems and hence there is a loss of materials with time. Kevlar however is long lasting and has no such issues. Following could be the disadvantages of using Kevlar Since Kevlar involves very complex processes from production to separation it is really expensive in the market and hence using Kevlar in bulk becomes very expensive for some cases. Usage of kevlar could also involve some very high recurring costs. Since Kevlar does not break immediately on impact so the damage on the material may not be visible immediately. This could lead to some hidden damages in the material. The damages in the kevlar material are difficult to analyse or find out. Therefore the repairs are difficult and since it is a fibrous material it has different repair techniques than the metal itself. Possible Uses USAGE IN AIRCRAFT INDUSTRY 1) Since the floorings and interiors form the base to the strength of the Aircraft they are made up Kevlar to give extra strength and better looks that metal would give. 2) Filament-wound pressure bottles :- Since aircraft work at very high pressures so the bottles made with a normal material could cause catastrophic situations in case those bottles burst hence Kevlar is used for such rupture proof bottles as well. 3)Engine nacelles The jets fly at very high speeds, sometimes even supersonic speed. At such high speeds even a small vibration or extra stress could prove deadly.The nacelles use in the jet engines must withstand such forces or thrust.Being strong and light compared to metallic structures it is widely used in such cases. 4)Aircraft tires An aircraft takes off at a very high speed and in such cases the attrition is not only due to friction but also due to extra forces exerted due to the takeoff. Similar things happen when the aircraft lands. Such continuous cycles can lead to severe damage in the aircraft. The tires are hence covered with a layer of Kevlar to prevent any such damage. 5) Rotor blades The rotor blades are made up of the honeycomb structured Kevlar so give a stiff blade and keep the weight within control. 6) Spacecraft: Since Kevlar can sustain very low temperatures as well as high temperatures too it becomes the perfect choice to be used in space where the temperature could vary in a wide range. It has been used in the various missions to mars to construct the rovers and to avoid impact attrition. 7)Navy vessels- The navy vessels work in a very corrosive environment in the sea hence a normal material would sustain serious damages therefore Kevlar is used in such cases. Environmental Impact: The various composites like Kevlar have proved to be very efficient for aircraft purposes and advantageous too but could also be a potential danger to the environment and the organisms. Such composites like Kevlar are made up of fibres which individually are very small in structure when handled during production. Being so small in size they can penetrate through the nostrils making way to the lungs and hence causing lung diseases. They could damage the internal tissues or could cause clotting in the arteries. Another effect of this could be their adsorption on the skin and hence causing cancer or irritation. Aircraft structures made of such stuff when crash and burned release very small fibres of dust into the air causing air pollution. This is also the case when an aircraft is disposed of. They again could release toxic vapours in the atmosphere and hence cause skin, lung or eye problems. Therefore very serious precautions are required while producing, handling or disposing of the K evlar made stuff. References DUPONT(2013), Resourced From The Internet on 13th Feb,16 from https://www.dupont.com/products-and-services/fabrics-fibers-nonwovens/fibers/brands/kevlar.html MARIA MRAZOVA(2013), Advanced composite materials of the Future In Aerospace Industry, The Faculty of Operation and Economics of Transport, Slovak Republic PRINCETON(2015) Ch. 3Polymer Matrix Composites Page- 7 7 resourced from the internet on 13th Feb,16 from https://www.princeton.edu/~ota/disk2/1988/8801/880106.PDF QUINTANILLA, J. (1990). "Microstructure and properties of random heterogeneous materials: a review of theoretical results". Polymer engineering and science 39: 559585 STEPHANIE KWOLEK "Inventing Modern America: Insight :". Lemelson-MIT program. Archived from the original documents on May 24, 2009