Explain the Differences Between Panglosss Philosophy Essay Example for Free

Explain the Differences Between Panglosss Philosophy Essay Pangloss’s philosophy of life is that all is for the best in the â€Å"best of all possible worlds. † This optimistic philosophy actually is the key element of Voltaire’s satire. Pangloss’s philosophy is against the ideas of the Enlightenment period. Pangloss believes that a powerful God had created the world and that, therefore, the world must be perfect. When creatures of the world, see something as wrong or evil, it is because they do not understand the ultimate good that will come out of it. Voltaire satirically shows the reader that Pangloss is not a believable character. Voltaire illustrates this by showing us that he keeps his optimistic thought even when he is imprisoned. Pangloss ignores any evidence that contradicts his initial opinion. He also uses illogical arguments to support his beliefs. Pangloss’s philosophy tries to impose a passive attitude toward all that is wrong in the world. If the world is the best one possible, then there is no reason to make any effort to change things. Martin is more believable than Pangloss, not because he is more sophisticated, but because he is smarter and more likely to draw conclusions with which we can identify. Martin had been robbed by his wife and beaten by his son and deserted by his daughter and also lived financial setbacks, and therefore he’s a pessimist whereas Pangloss is an optimist. He uses his experiences to judge the world whereas Pangloss was merely using a theory. As a result, Martin is more insightful than Pangloss to foresee events that will happen. Even though Martin’s philosophy is more believable than Pangloss’s, he’s still not good at predicting how some people will behave because his philosophy is coming from extreme pessimism. Therefore it might not be wrong to say that Voltaire is trying to prove that we need flexible thought in our lives based on real evidence. Both philosophers will ultimately fail because there’s no room for exceptions in their beliefs. Candide starts his journey with the influence of Pangloss’s belief of â€Å"best of all possible worlds†. Pangloss and Candide, suffer and witness a wide variety of horrors and tragedies together. During these tragedies, Pangloss’s s philosophy proves to be useless and even destructive at the end, because it prevents them from making realistic judgments. For example while Jacques was drowning, Pangloss doesn’t let Candide save him by saying that the bay of Lisbon had been formed for this Anabaptist to drown in. Also when Candide was buried under the rubble of the Lisbon earthquake, he asked for oil and wine because he was dying, but Pangloss ignored him and still tried to reason with the causes of the earthquake. At the end Candide rejects his philosophy of optimism and as he and his servant Cacambo travel and go through more horrors, Candide starts believing a pessimistic view of life. When Candide meets Martin, they set sail together and Martin is just the opposite of Pangloss. He does not believe that everything is for the best in this world. Even though Candide tries to oppose Martin by talking about free will but it does not solve the problem of presence of evil in the world. In general, Martin’s arguments seem more reasonable than Pangloss’s ideas. But, like Pangloss, Martin believes so firmly in his own view of the world that he is not flexible and usually dismisses real evidence that contradicts his philosophy. When Candide cannot find Cunegonde, Martin shows the bad influence of his pessimism. Instead of attempting to comfort his friend, Martin uses Candide’s distress to further confirm his own world-view. Just like Pangloss’s optimism, Martin’s pessimism also keeps him from taking initiative to improve the world.

Impact of Junk Food on Health

Impact of Junk Food on Health Junk Food Impact on Health Junk foods are called fast foods. As the name says they are easy to prepare and can be consumed very quickly. They are low in nutritional value and have fat, salt etc. in it that cause ill effect on consumer’s health.. The term ‘Junk food’ was coined by Michael Jacobson, director of Center for Science in 1972 in the public interest to raise attention among people about the issue of junk foods that has high calories and a lack nutritional value. Junk food contains sugar in high quantity, trans fat, polyunsaturated fat salt and numerous food additive such as monosodium glutamate (MSG) etc. and lack healthy nutrients that are required by body like protein, vitamin and fiber etc. They are popular because it requires a very simple process to manufacture and to consume. It is also popular because their taste and has a long shelf life which may not require refrigeration. It is quite popular in the developed countries like USA, Canada etc. because of a fast lifestyle. The junk food advertising also plays important role in its popularity. It should be avoided at all cost because it lacks energy and important nutrients required by the body and also has many health effects too. Eliminating the temptation for junk food and developing the awareness for health fitness like going to gym regularly and banning junk foods in schools can be helping in avoid the junk food and also shifting to the healthy foods can help in avoiding it. In the UK, the food standards agency do not use the term ‘junk food ‘and describe food ‘HFSS’ (high fat, sugar or salt). They state that has foods can form part of a balanced diet, but research show that children diet contain too much fat (especially trans fat) salt and suger. Americans eat the most fast food, but the Japanese spend the most on take away (home delivery) according to a research conducted by Euro-monitor International. The high level of per capita consumption demonstrates the importance of fast food in life style in these countries. Burger dominates the US fast food industry as it taking more than half of total fast food expenditure. There are many types of junk foods available in the market like sodas, pizzas, burgers sandwiches and French fries etc. They are many companies that provide these foods like McDonald’s, Burger King, and KFC etc. There are some foods like cheese chili, pav bhaji and gyro though they are not considered as fast foods but it contain less nutritional value and are made in oils as a result of that it can be considered as junk food. Similarly during the breakfast time some people like to eat cereals and considered them healthy but it contains high quantity of salt, sugar and fat as a result of that it could trigger various problems and has long time effects. Junk food Facts and Marketing According to the article published in US News on 11/5/2013 different facts related to marketing like In 2012 the fast food industry spent $4.6 billion to advertise junk food and the main audience was children and teen. A report by Yale shows that in 2013 33% of children consumed fast food and whereas 41% of teens ate fast food. The most worry some was everyday day it contribute an increase of 126 calorie in kids and whereas in teens it is 310. There are different ways to advertise fast food like TV ads social media and mobile ads. According to the report out of 5,427 meal combinations of junk food only 33 met recommended nutritional standards. There are different marketing strategies that junk food companies follow to promote it. Many of the companies like subway, McDonald’s etc. offer loyalty programs. This is the most important way how they advertise it. It is based on the frequency you buy it and based on that you get a gift after some frequent visits like get a free meal etc. Another strategy they use is termed as Collectibles. With this they get customer particularly that children watch and enjoy. What they do is they find movies , cartoons and when parents buy kids meal, they provide a free gift as a result people do come back to collect all the collectibles. They also use societal marketing. According to Assistant Professor of clinical marketing in University of Southern California Lars Perner says â€Å"social marketing is designed more for getting ideas across than making sales†. With the help of this consumers that relate to ideas patronize fast food restaurant in turn. Problems related with Junk foods They are many problems related to junk food: High in Fat Content: Junk foods like pizzas, chips, sandwiches etc contain high quantity of saturated fats. They fats are not easy to digest as a result of that it gets accumulated as a result of that people gain weight which results in over weight leading to obesity. All this could trigger many problems related to heart and high blood pressure etc. High salt Content: Fast foods contain salt in more quantity as required by the body. Salt results in increase of blood pressure. Too much salt is not good for body as result of people might suffer from hypertension. High sugar content: Sodas and biscuits etc. contain sugar. Everyone likes sweet taste but sugar has its own disadvantages like too much sugar rots the teeth and could trigger a lot of tooth problems like ache etc. Excessive amount of sugar increase the sugar content in the body and as a result of that people could suffer from diabetes. I personally feel that it contains sugar , salt and fat that is needed but in contrast to that it contains in excess quantity as a result of that people suffer from it. Why junk foods are popular There was a research conducted in 2005 in Minneapolis area were 600 people were interviewed and was found that there are multiple reasons why people prefer it. The chart is based on the 600 people that was interviewed in the Minneapolis in 2005 and was published on the webmd.com by Miranda Hilti. Due to following reasons people prefer junk food over homemade nutritious diet: Time: People are addicted to eat junk food in spite of knowing its harmful effects because it is easy to prepare and can be consumed very quickly. It saves a lot of time and as it is cooked in oil and contains sugar and salt, is added it to its taste. We eat it while going for job or when we do not want to cook or while watching movies etc. Taste: Moreover not only time but also its taste because of salt , sugar and oil, people prefer it. Junk foods like chips and biscuits etc do not require to be refrigated and can be put on shell. So it has more shelf life. Junk food packing is so simple that it could be transported from one place to another easily and hustles free as compared to perishable foods. Junk foods are cheap as compared to homemade food. Harmful effects of Junk food: Obesity: When people are having excess fat or weight, then person is termed as obese and is suffering from obesity. It is a global problem. Based on the research it is found that 33% of the people in the US are suffering from it. Medically normal body mass indes should be between 20-25. But when it is more than it person is termed as overweight. But when person has BM I of 30 or more than he is suffering from Obesity. All this is caused because of trans fat in the junk food. Diabetes: Junk food contains high amount of sugar as a result of it people could suffer from it. It is of 2 types Type 1 and Type 2. Type 2 is caused because of junk food consumption. Hypertension: High amount of salt is present in junk food. As a result of that when people consume junk food it increase the blood pressure of the body. Excessive amount of salt in body could lead to hypertension, which could trigger many other problems related to the heart and obesity is also a cause of it. Heart Problems: Junk food fats get clotted in the heart arteries which could increase the chances of heart attack. It takes more time to treat it and is medically expensive. Cavities: The junk food gets accumulated on tooth spaces as a result of that it forms plague and ultimately causes cavities. This is quite popular among children. It could also trigger kidney diseases related to renal or polyuria because of salt and sugar present in junk food Junk food contains artificial flavors and preservatives which could cause asthma. Junk food is prepared with lot of additives and chemicals and some people can get allergic to it and it cause skin problems like rashes etc. Overweight people could suffer from digestive cancers as well. Moreover the junk foods makers do not do anything for healthy living and people could also suffer from digestive problems like food poisoning etc. Reasons to avoid it: Lack of energy: In order to remain healthy body requires vitamins , minerals , proteins etc but junk foods lacks all these which leads to weakness in people. Poor Concentration: This is also caused result of junk food. Some people eat a lot and because of that there is lack of oxygen , nutrients which makes people dowsy and other problems. High Cholesterol: It causes heart problems as it blocks the persons arteries. It is not limited to it and also affects liver where it is metabolized. It permanently damages it. Heart Diseases : It is major cause of it because arteries gets blocked because of plague formation as a result of that heart needs to put extra effort to pump blood. But it causes lack of blood in heart and triggers heart attacks. Low nutritional Value: If you want to give a rating regarding the nutritional value then it will be 1 out of 10. When we make junk food nutritional is lost so they add syntactic nutrients to it in order to compensate which causes many diseases and effect our health adversely. Addictive: Salt and sugar are added to make the food tasty but they are highly addictive as it simulates receptors in the brain and people feel goods because the dopamine levels increases as a result of this. Many chemicals like MSG , artificial colors etc are added to prepare junk food. Medical report states that MSG causes obesity. Similarly junk foods are canned and free zed as a result of that it loose flavor so chemicals are added for flavors but it affects our health.

Educational Psychology :: essays research papers fc

Educational Psychology ? Mr. ? Psychology 16 Oct. 1996 The field of psychology that deals with the ability to solve educational problems and to improve educational situations is the field of educational psychology. Educational psychology is sometimes referred to as an applied field, meaning, one in which the objective is to solve immediate practical problems (James 29). The beginnings of educational psychology were initiated by Aristotle in his formulation of the laws of association. These laws: similarity, contrast, and contiguity, supplemented by frequency, are the beginnings to an experimental science (Piaget 9). As the science began to develop, the educational psychologists did little more than administer mental tests, which started with the Stanford-Binet test (IQ test). Today, the science has been expanded to include counseling students, teachers, administrators, and parents, in an effort to help make the school environment one which is most effective in promoting learning. As an example, if a student in school commits a disciplinary action, instead of being indiscriminately punished, that student would be sent to see the school psychologist to find out the causes of the students misbehavior and deal with them accordingly (Frandsen 92). Though studies of educational surveys, there were nine major factors that increased learning. These nine factors can be placed into three groups: student aptitude, instruction, and psychological environments. Student aptitude includes (1) ability or prior achievement as measured by score on educational test; (2) development as indexed by chronological age or stage of maturation; and (3) motivation or self-concept as shown by personality tests and students' perseverance on learning tasks. Instruction can be thought of as (4) the amount of time students engage in learning and (5) the quality of the instructional experience. Psychological environments include: (6) the "curriculum of the home," (7) the morale of the classroom social group, (8) the peer group outside school, and (9) the amount of leisure-time television viewing. These are the factors that influence academic achievement and behavioral learning (A.A.E. 66). Educational psychology does not only hold true for humans, but also for animals. Ivan Pavlov displayed the principle of association by applying it to the salivary reflex. He trained his dogs to salivate at the sound of a bell alone if previously they had so responded to meat and the bell together. In another case, B. F. Skinner trained pigeons to play a form of table tennis by rewarding the birds with food pellets each time they hit a ball into a designated trough (James 66). This area of psychology is used today to teach specific subjects such as foreign languages, arithmetic and mathematics, reading, writing, spelling, and the sciences. However, teaching of these subject requires a person that

Coda Lidencing :: essays research papers

The first question about this topic would be: Why would a word-final consonant have to be syllabified in an onset, and not in a normal post-nuclear rhymal complement (Coda) position. After all, we have this position in word internally, and this Coda is so important as it differs some languages to others called â€Å"CV languages†.   Ã‚  Ã‚  Ã‚  Ã‚  First of all, Coda is an old term, back to the time that all consonants which occur after a nucleus could be simply attached to the rhyme in the form: (1) ,where C could even accommodate 2 consonants when N is neither a long vowel nor a heavy diphthong. Nowadays, Coda is more accurately called rhymal complement, to accentuate the fact that it is not a constituent, while onset and nuclear are. Why can’t a word end in a consonant? If we observe the way languages behave, so many exceptions seem to occur in the word-final â€Å"Coda†, every rules about how it should normally behaves is so frequently broken that leads us to the question whether this â€Å"Coda† could be defined as such. 1-  Ã‚  Ã‚  Ã‚  Ã‚  The case of vowel shortening rule. Basically, long vowels are shortened in a closed syllable (Kaye). And here are some examples to illustrate this proposition. Ex: French, chat [Sa:] and chatte [Sat] Yawelmani, [sa:pit] and [sapnit] In both cases above, the vowels are shortened to accommodate a consonant in its rhymal complement position, because we know that there is no long vowel or heavy diphthong in a branching rhyme. But in cases when the consonant which occurs after long vowel is also situate at the end of the word, this rule is not observe. Ex: French, vert [ve:r] and verdure [verdu:r] English, keep [ki:p], and green [gri:n] (2) Those examples shows violation of the above rule stated where no coda could be accommodated into a rhyme with long vowel or heavydiphthong. 2-  Ã‚  Ã‚  Ã‚  Ã‚  The case of word-finally consonant cluster. Words in English like kept, child, find†¦pose several problems in phonological analysis. First problem would be the rule about â€Å"no branching coda in a branching rhyme†, the second would be the nature of consonant clusters; consonant like pt, ld, rt†¦ are not the normal consonant cluster so-called well-formed cluster, the well-formed cluster in a language could be easily spotted in a branching onset. If we could not find them at the beginning of any English word, there is a big chance that they are not a good cluster, so we can separate them into two different syllable if found in middle of a word, the natural order of two consonant occurring next to each other must be respected, re-syllabification is not possible.

Imagination and Literature Essay -- Literature Essays Literary Critici

Imagination and Literature      Ã‚   The importance and influence of imagination on the creation and critique of literature varies between and within various artistic eras. Originally seen as an aberrant function of the mind, imagination was subservient to the powers of reason and order. Art involved mere replication of the real, a craft rather than an unique act of creation. Beginning as early as Aristotle, however,   human imagination has been linked to the power and value of art. The ascendancy and, in some eras even superiority, of imagination as a potent mental faculty gave birth to new critical enterprises bent on articulating the manner, motivation, and merit embedded in art and the artistic process. By tracing the development of this basic literary concept, it may not be possible to discover a coherent and universal idea of imagination that has evolved throughout history. However, such an inquiry could lead to a better understanding of how the ideas and attitudes about imagination from one age enter i nto an informative and influential dialogue with others. From the rational and pragmatic critics of the Enlightenment to the expressive and Romantic critics of the Nineteenth Century, we can begin to formulate a synthetic rather than absolute understanding of imagination.      Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Though Aristotle first created room for imagination by expanding the expressions of a poet from the actual to the possible "in accordance with the laws of probability or necessity", it was not until much later that the capacity and power of imagination was adequately explored. Imagination was seen as a turbulent, unpredictable, but potentially beneficial force which must be refined and kept within the bounds of reason to pragmatic critic... ... each definition of imagination we have discussed struggles to be independent while simultaneously remaining intertwined to the preceding critical traditions.    Works Cited Coleridge, Samuel Taylor. "Bibliographia Literaria" The Critical Tradition. Ed., David H. Richter, New York: St. Martin's Press, 1989.    Hume David. "Of the Standard Taste" The Critical Tradition. Ed., David H. Richter, New York: St. Martin's Press, 1989.    Johnson, Samuel. "Rambler, No. 4" The Critical Tradition. Ed., David H. Richter, New York: St. Martin's Press, 1989.    ---. "Rasselas, Chapter 10" The Critical Tradition. Ed., David H. Richter, New York: St. Martin's Press, 1989.       Shelley, Percy Bysshe. "A Defence of Poetry" The Critical Tradition. Ed., David H. Richter, New York: St. Martin's Press, 1989.

Eating Disorder Research Paper Essay

Media and society are often looked at as a source of daily entertainment, gossip and news. Every day, people are constantly exposed to thousands of images of glamour, beauty, celebrities, and much more. The media is so compelling that it has the power to change what people believe in. The images that are shown repeatedly make a way into teenagers mind and they want to be a part of what the media shows. Teens feel the need to change their body to look a certain way and be like someone else. But a fact unknown to teenagers is that even celebrities’ body are not perfect. The most common eating disorders are anorexia nervosa and bulimia nervosa. People with anorexia have a huge fear of gaining weight and a change in their body shape and size (â€Å"Eating Disorders†). Anorexia has been characterized as a â€Å"rich white girl† disorder because most anorectics are white and about three-quarters of them come from households at the middle income level or above (Davidson and Fundukian). Bulimia on the other hand is when a person eats large amount of food over a short period of time then later performs activities to try to burn the calories off. Binging is the most common symptom of bulimia and it is often done when trying to get rid of the food eaten. Bulimia is thought to affect around 1% to 5% of teenage American girls and up to 3% will be bulimic at some point in their life (Arnold and Walsh 30). Studies show that â€Å"media exposure has a direct impact on disorder symptoms and indirect effects through gender role endorsement, ideal-body stereotype internalization and body satisfaction. † The covers of magazines display pictures of both men and women whose images are offered as near perfection in society. â€Å"Research has shown that even brief exposure to ads showing highly attractive models results in decreased satisfaction with one’s own appearance† (McMurray). Teenagers should know that celebrities are not magically beautiful and thin, they are made to look that way. â€Å"Today’s culture is unique in that the media is a far more powerful presence than ever before† (Derenne and Bersin). The media has been named as a causative factor for body dissatisfaction, which promotes unrealistic standards of female beauty and show images that create and reinforce cultural definitions of attractiveness. (Qtd. in Wexler). The media opens the door of eating disorders to teenagers and brainwashes them into thinking that being thin is important and necessary. The media needs to be very careful in the messages that they give to teenagers regarding body image. Dr. Bond says how â€Å"the media should be more responsible in not publishing pictures of very thin models and celebrities because young people wish to emulate them. Eating disorders are not going away, if anything they are becoming more common (Thinspiration? ). Advertisements everywhere continually expose the notion that losing weight will make people happier. Advertisements that show thin celebrities reach out to individuals telling them what they can be or become if they were thin. By looking at these advertisements, women start to feel insecure about the way they look. The NEDA reports that â€Å"women’s magazines contained 10. 5 times more advertisements and articles promoting diet and weight loss then were found in men’s magazines. It also reports that a study of 4,294 network television commercials revealed that one out of every 3. 8 commercials conveyed some sort of attractiveness message of what is or is not attractive† (Qtd. In Wexler). Many women frequently compare their bodies to those around them and the body images on advertisements lowers their self-esteem. The advertisements of celebrities affects the stereotypical idea of an ideal body which leads to eating disorders (Stice et al 5). Online, there are websites that promote anorexia. Teens with anorexia can then put up pictures of their skinny bodies for other anorectics to see and feel encouraged by. They feature pictures of celebrities such Keira Knightley and Victoria Beckham that promote 400-500 calories a day diet. In a year alone more than 500,000 people visited the sites and a 2011 EU survey found more than one in five six-to 11-year olds had been exposed to one or more sites with these â€Å"harmful content† (Thinspiration? . Teens who are anorexic feel that having an eating disorder is not a bad thing. They look upon each other for support, telling each other secrets of losing weight. The quote â€Å"Nothing tastes as good as skinny feels† by Kate Moss is popular among these pro-anorexia websites (Wardrop). TV shows also send the message to be thin to whoever watches them. Disney Channel, which attracts millions of viewers, especially the young, made fun of eating disorder and actually promoted the idea of being thin. In the show Shake It Up, someone stated â€Å"I could just eat you guys up, you know, if I ate† (â€Å"Party It Up†). In another Disney show, So Random, a conversation goes on where one character tells another â€Å"Angus only eats one full meal a day† to which Angus replies â€Å"My agent’s always on me about looking my best (â€Å"Colbie Caillat†). Disney thinks about eating disorders as a joke which is not dangerous. For many kids, the people on Disney are their role models, and if kids see their role models not eating, they are going to think that it is okay to not eat. Also if Disney encourages the idea of not eating that kids will do the same thing. Demi Lovato who battled an eating disorder attacked Disney about these risky messages that they send to kids. Experts say that Lovato opened the Pandora’s Box about the dangerous effects television shows can have on the negative body image of young women (â€Å"Disney Pop Star†). Even in other TV shows, the overweight characters are most likely portrayed as lazy and the one with no friends, while thin characters are successful and popular. This also sends a message that in order to be successful in life a person has to be thin. Teenagers feel pressured into looking the way society wants them to look like. Everywhere they go, they see posters of celebrities enhanced to look â€Å"perfect. Society thinks that if someone does not look a certain way then it is not acceptable and that they should change how their body looks. From a young age, women are given the message that in order to be happy, they must be thin. Thousands of teenage girl starve themselves to attain what the fashion industry considers to be the â€Å"ideal† figure (Thompson). Society has become obsessive and prejudiced when it comes to body image. Society and media work together to get that one message across to teens today; to be thin. New diets come out every month and media spends money trying to advertise them and get celebrity endorsements. In stores, the front pages of magazines show that one celebrity that everyone looks up too. How they talk about that one diet that â€Å"changed their life† and made them â€Å"happy† again. Teens think that if these celebrities can be skinny, then why can’t they? Teens spend their times looking at websites and magazines that tell them how to be skinny. By constantly portraying â€Å"perfect† bodies in the media, it promotes unhealthy eating that can sometimes lead to death (â€Å"Disney Pop Star†). Even today, dolls like Barbie send that message to young girl to be thin. The Barbie doll is a stereotype of a woman with no flaws and a perfect body who gets to be whatever she wants. Girls who play with Barbie feel the need to look and act like her. The traditional Barbie is known for her 40-18-32 measurements (Young) which would be unproportional on human bodies (Grey). If Barbie were real, she would be 5’9†³ tall and weigh 110 pounds, about 35 pounds below the minimum healthy weight for a woman of that size (McMurray). Barbie helps to perpetuate an ideal of materialism, beauty, and being thin is happiness and since a young age, the desire to be thin is recognized by girls everywhere. But eating disorders doesn’t just affect women, it affects men also. In a study by Harvard researchers, 25% of 3,000 adults had anorexia or bulimia and 40% of binge eaters were men (Boodman). Just like women, men also feel pressured into looking a certain way. In school, boys are told to be healthy if they want to keep playing a sport. But that habit can become something more dangerous. â€Å"Studies show that gay males particularly place a higher calculation on thinness than heterosexual males, with a level of concern for thinness almost equal to that of the typical heterosexual female† (Anderson, Cohn, and Holbrook 41). Because of this many men might be afraid about coming out to the world about their eating disorder. Some people think of an eating disorder as more of a woman thing and â€Å"psychological tests for eating disorders are biased towards diagnosing women† (Anderson, Cohn, and Holbrook 41). Eating disorders are also common in the entertainment business. Celebrities and models are also under pressure to look their best. The average model weighs 23% less than the average woman and fit the category of being anorexic (Thompson). Models go through plastic surgery and photos are air-brushed before going to print. The body type and images are unobtainable to the average individual and the constant force of these images on society makes teens believe that they should be. Many celebrities and models who feel that an eating disorder is something more dangerous than what everyone else seems have come out and talked about that issues. Even celebrities who once had an eating disorder spend time educating others and telling them that it is okay to get help. In 1992 after the news about Princess Diana being bulimic was released, there was a significant increase in the number of bulimia diagnoses. This effect then came known as the â€Å"Diana Effect† (Celebrities Who Battled Eating Disorders). Just like how Lucy Grealy states in her memoir Autobiography of a Face, â€Å"Beauty, as defined by society at large, seemed to be only about who was best at looking like everyone else† (187) it looks like that concept has not changed since that time. In today’s society everything is about being thin and trying to look like a model or a celebrity. Teenagers try to do everything to make themselves how society wants it but in the end they just destroy themselves. Society and media think of an eating disorder as a joke but it is a disease; a disease that has the power to take the lives of both women and men. For anybody out there who thinks that an eating disorder is not a big deal then they are wrong. People, especially the media, should know that the message they send out to teens is wrong; everything is not just about being thin. Simply by the media bringing out the concept that being beautiful and thin is necessary for a successful life is wrong. Having to look like a model to be accepted in society is wrong. All these messages have a huge negative effect on teenagers and they think down of themselves just because they do not think they are â€Å"right† for society. The fake advertisements that are shown is just another step for teens to developing a dangerous and deadly addiction that is called an eating disorder. â€Å"I think we look at society and we look at every ad that out there and everything that tells us how we’re supposed to look, and how we’re supposed to live, and how we’re supposed to be instead of saying ‘Is that how really I feel? ’, ‘Is that really what I want to do? ’, and ‘Is that really how I want to live? ’† (Ellen DeGeneres).

Headloss Through a Valve

Fluid Mechanics Lab Head Loss Through a Valve April 24, 2012 Abstract This experiment determined the relationship between the head loss through a gate valve and the degree of opening of that valve with varying flow rates. The objective of this experiment was to determine the valve loss coefficient, K, for a specific gate valve as a function of both the pipe Reynolds Number, and the degree of opening. The relationship between the Reynolds Number and the friction factor was constant. Regardless of what the Reynolds Number was, the friction factor remained the same.This means that the valve head loss coefficient, K, only depended on the degree of opening of the gate valve. As the valve is slowly turned closed, the Major Head Loss due to friction along the pipe, decreases, and the Minor Head Loss, due to the friction through the gate valve, increases. There is a positive linear relationship between the Reynolds Number and the head loss coefficient. The slope of this linear relationship s howed that as the flow rate increases, the velocity increases which means the Reynolds Number gets bigger and the head loss coefficient increases.Therefore, the higher the flow and the smaller the degree of opening of the gate valve, the greater the head loss becomes through the gate valve. Table of contents Abstract†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ i 1Introduction1 1. 1Background1 1. 2Theory1 1. 3Objective1 2Apparatus and Supplies1 3Procedures4 4Equations4 5Experimental Results5 6Error Analysis9 7Conclusions9 8Recommendations for Further Studies10 9References10 APPENDIX Table of Figures Figure 21: Pressure Differential Gauge ? p. 2 Figure 22: Weighing Tank with Dump Valve open. 3 Figure 23: Pressure Differential Gauge between Valve Set-up3Table 51: Constants and given values. 5 Table 52: Measured Data. 5 Table 53: Volumetric Flow, Velocity, Reynolds #, Head Loss Coefficient. 6 Table 54: Real values of K, Major Head Loss, Minor Head Loss. 6 Introduction Background Gate valves are frequently used when constructing and fitting pipes. They provide the capability to shut off specific lines so that repairs or renovations can be made without having to turn off the main supply lines. Although these valves are useful, they also disturb the normal flow and cause friction. Theory The head loss coefficient, K, for a gate valve is related to the Minor Head Loss, Hlm, where Hlm=V22gK.The total head loss in the pipe is divided into two parts: the Major Head Loss, Hf, due to the pipe friction over length L, and the Minor Head Loss. Using the Bernoulli’s energy equation, the coefficient, K, can be found: K=2g? PV2? -fLD. Objective The objective of this experiment was to determine the valve loss coefficient, K, for a specific gate valve as a funct ion of both the pipe Reynolds Number, and the degree of opening. Apparatus and Supplies * 1 Weighing Tank with Dump Valve ( ±0. 5 lb) * 2 Stop Watches ( ±0. 01 sec) * Galvanized Iron pipe 27 inches ( ±0. 03125 in) long with a diameter of 1. 1 inches ( ±0. 0005 in) * 1 Pressure Differential Gauge ( ±0. 05 psi) * 1 Valve located in between the Pressure Differential Gauge on Galvanized Iron Pipe Figure 21: Pressure Differential Gauge ? p. Weighing Tank Dump Valve Figure 22: Weighing Tank with Dump Valve open. Figure 23: Pressure Differential Gauge between Valve Set-up Procedures 1. Measure the distance between the upstream and downstream pressure tabs. 2. Turn the handle on the gate valve to determine how many turns exist between fully-opened and fully-closed. 3. Turn on the pump and open the dump valve in the weighing tank. 4.Turn the gate valve so that it is completely open. 5. Record the Pressure Difference 6. Close the dump valve in the weighing tank. 7. Start and stop th e stopwatches over a 100 lb difference and record the times. 8. Open the dump valve in the weighing tank and allow water to drain into the sump. 9. Change the flow of water. Do not change the gate valve. 10. Repeat steps 5-8. 11. Turn the gate valve to 75% open. 12. Change the flow of water. 13. Repeat steps 5-9 a total of three (3) times. 14. Turn the gate valve to 50% open. 15. Repeat steps 12 and 13. 16. Turn the gate valve to 25% open. 17. Repeat steps 13 and 13.Equations Head Loss Coefficient: K=2g? pV2? -fLD Major Head Loss: hf=fLDV22g Minor Head Loss: hlm=KV22g Reynolds Number: Re=VD? Area of Pipe2: A=? 4D2 Velocity: V=QA1 Volumetric Discharge: Q=? W? t*? Experimental Results Table 51: Constants and given values. Table 52: Measured Data. The friction factor f=0. 049 was calculated based on Ks/D and the Reynolds Number. Table 53: Volumetric Flow, Velocity, Reynolds #, Head Loss Coefficient. Table 54: Real values of K, Major Head Loss, Minor Head Loss. Error Analysis There were some values calculated for the valve loss coefficient, K, which were negative.This is impossible because a negative K value would give you an overall gain in energy as water flows through the valve according to Bernoulli's energy equation. According to the equation used, gravity and the specific weight of water are constant. The length and diameter of the pipe along with the velocity had relative errors due to human accuracy, but all of these were negligible. This leaves the friction factor, f, and the pressure differential readings. The calculated value of the friction factor was given and was probably over estimated and the absolute roughness of the pipe was less.The accuracy of the pressure differential gauge was also a possible source of error. Looking at the data, the first five readings all had negative K values and they all had very low pressure differential readings. The accuracy of the readings become more inaccurate the closer the readings are to the endpoints of the scal e. Conclusions According to the Moody Diagram and the absolute roughness stated, the relationship between the Reynolds Number and the friction factor was constant. Regardless of what the Reynolds Number was, the friction factor remained the same.This means that the valve head loss coefficient, K, was only depended on the degree of opening of the gate valve. As the valve is slowly turned closed, the Major Head Loss due to friction along the pipe, decreases, and the Minor Head Loss, due to the friction through the gate valve, increases. There is a positive linear relationship between the Reynolds Number and the head loss coefficient. The slope of this linear relationship showed that as the flow rate increases, the velocity increases which means the Reynolds Number gets bigger and the head loss coefficient increases.Therefore, the higher the flow and the smaller the degree of opening of the gate valve, the greater the head loss becomes through the gate valve. Recommendations for Furthe r Studies The experiment could set minimum and maximum standards for readings off the pressure differential gauge. For each valve reading, making the minimum pressure difference greater than 1. 0 PSI and less than 9 PSI would ensure that there are no endpoint inaccuracies. References Giles, Ranald V. , Jack B. Evett, and Cheng Liu. Schaum's Outline of Fluid Mechanics and Hydraulics. New York: McGraw-Hill, 2009. Print. Appendix