Young Girls with Eating Disorders Essay -- essays research papers fc

You open up a magazine and fine a beautiful woman who is 110 pounds soaking wet. Her eyes are the starring straight at the camera with her thin lips clinched together and her neck slightly raised. This in my most cases is what beauty is brought out to be. Sometimes you have to ask yourself, how many of those girls do you actually see? For others its, how do I become that? Many teen girls suffer with anorexia nervosa, an eating disorder in which girls use starvation diets to try to lose weight. They starve themselves down to skeletal thinness yet still think that they are overweight. Bulimia, meanwhile, is a disorder in which young women binge on food and then force themselves to vomit. They also often use laxatives to get food out of their system. All of these young women who suffer from this problem are considered to suffer from a psychiatric disorder. While the causes are debatable, one thing that is clear is that these young women have a distorted body image. It is a very serious issue when someone's body shape is determined by genetic disposition and yet they try to alter it to fit some kind of imaginary ideal of how a person should look. One of the most serious problems is that female nature is not what society says it should be. Some researchers theorize that anorexia is a young woman's way of canceling puberty. Since they lack body fat, anorexics don't get their periods and often lose their sexual characteristics such as public hair. They remain, in other words, little girls. There is also the complex issue of women feeling that by having an eating disorder they are finally in control of something in their life. This may sound strange, but much research has shown that women who have been abused or neglected in their childhoods develop these problems of control. (http://www.anred.com/medpsy.html). Studies suggest that eating disorders often begin in the transition from being a kid to puberty. They are directly connected to pubertal maturation and the increases in body fat that occurs during this phase. These biological changes are associated with increased dieting and unhealthy behaviors in early adolescence. This problem is aggravated by various problems, including negative body image, which links with weight, perfectionism and depression. Family and socializ... ...ED 1. ANRED: Complications of Eating Disorders: http://www.anred.com/medpsy.html-79. 2. EATING PROBLEMS in FEMALE ATHLETES Disordered Eating Tendencies Among Female Pair and Dance Figure Skaters: Are They More at Risk Than Non-Athletes?: G. Taylor & D. M. Ste-Marie http://www.health.uottawa.ca/hkgrad/mllab/eatdisfg.html 3. Cauffman, Elizabeth, and Steinberg, Laurence. "Interactive Effects of Menarcheal Status and Dating on Dieting and Disordered Eating Among Adolescent Girls," Developmental Psychology, 1996, vol. 32, no.4, 631-635. 4. Graber, Julia, Brooks-Gunn, J., Paikoff, Roberta, and Warren, Michelle. "Prediction of Eating Problems: An 8-Year Study of Adolescent Girls," Developmental Psychology, 1994, vol.3O, No.6, 823-834. 5. The costs and causes of low self-esteem: Nicholas Emler http://www.jrf.org.uk/knowledge/findings/socialpolicy/n71.asp 6. Burns, David â€Å"Feeling Good, The New Mood Therapy† pgs. 62-69, 385-405

Bob Marley Musical Influence

Nesta Robert â€Å"Bob† Marley is known as being the father of reggae music. Bob Marley was the lead singer of the band The Wailers. He spread Jamaican music along with the Rastafari Movement worldwide. Marley brought the mystic power of reggae to the world and is called the Third World’s first pop superstar. He died at Cedars of Lebanon Hospital in Miami, FL of melanoma. Even after his death, Marley remains a global symbol of freedom, peace, and justice, and his songs remain popular worldwide.Bob Marley was born in Saint Ann Parish, Jamaica, on February 6, 1945. Marley began playing music while he was still in school. When he was ten he moved to Kingston; it was there, in 1962, he recorded his first three songs, â€Å"Judge Not†, â€Å"Terror,† and â€Å"One Cup of Coffee. † These singles attracted very little attention. In 1963, Marley and a few others formed a ska band â€Å"The Teenagers,† which went through many names before finally sett ling at â€Å"The Wailers. † Ska music is a Jamaican interpretation of American R&B, with an accent on the offbeat.Bob, Bunny, and Peter were the core trio of the band. They wrote lyrics that told of the struggles the Jamaican poor experienced. The band gained local following fairly quickly, which lead them to incorporate dub, a reggae style of music with the drums and bass foundation in the forefront, in the 1970s. In early 1972, The Wailers were loaned 4,000 Euros to record a record produced by the London offices of Island Records. â€Å"Catch A Fire† was met with international media fanfare and a tour in the UK and US ensued.Their second album, â€Å"Burnin† was released in October 1973 and included such hits as â€Å"I Shot the Sheriff† and â€Å"Get Up Stand Up. † The single â€Å"I Shot the Sheriff† was one of their most widely known hits. Eric Clapton recorded a cover in 1974 which gained The Wailers a large fan base in the US. Bob Ma rley and The Wailers went on their final tour in 1980 that broke attendance records and sold out such venues as Madison Square Garden. Bob Marley’s final performance was September 23, 1980 at Stanley Theater in Pittsburgh, PA.The final album released in Marley’s lifetime, â€Å"Uprising,† was released in 1980 and made a connection to African-American listeners with the single â€Å"Could You Be Loved,† which fused reggae and disco to give a danceable sound. The Rastafari Movement was a key element in the development of reggae music, and Bob Marley was a member of this culture. Rasta is a spiritual movement that worships the Emperor of Ethiopia, Haile Selassie I. The spiritual use of cannabis and rejecting the western society are key themes upheld by the Rastafari Movement. Reggae music is said to have largely helped spread awareness of Rasta worldwide.Bob Marley was a key component in doing so. Marley is also known for having dreadlocks, which is a Rasta custom. They uphold that the bible warns against cutting hair; but not every Rasta has dreads, rather every Rasta has love in their heart and that is what sets them apart. Bob Marley was diagnosed with malignant melanoma in July of 1977, under one of his toenails. It was advised that Marley have his toe amputated, but he refused based upon religious beliefs. It was later confirmed this infection was a spreading of already existing cancer in Marley’s body.He continued touring despite being sick and shortly after the concert at Stanley Theater, became increasingly ill and attempted to fight the cancer using a controversial type of therapy based on avoiding certain substances. After eight months of unsuccessful therapy, Marley was set to return to Jamaica. Marley’s plane was forced to land in Miami, however, as his vitals worsened. The melanoma had spread to his lungs and brain, causing his death on May 11, 1981. He was 36 years old. Marley’s last words to his son, Ziggy, were â€Å"Money can’t buy life. †

Mitch Albom’s Altered View of Life

After Mitch graduated from college, he headed for New York to start working on his dream of being a renowned musician of which he later discovered of failing for the first time in his life. When he lost his favorite uncle to pancreatic cancer, he realized how valuable time is and decided to get a master’s degree in journalism instead of pursuing a career in music. He became a sports writer then became a man driven by career and ambition. He later on became successful that he wrote for sports books, did radio shows and appeared recurrently on TV until he saw his old friend who was also his favorite professor in college, Morrie Schwartz, on TV.   He learned that Morrie had amyotrophic lateral sclerosis (ALS) which has no cure. When he decided to visit Morrie after so many years of not seeing him, it became a regular weekly meeting for them every Tuesday, talking about life, from which Mitch learned a different perspective, a different view. Morrie told him, â€Å"Dying is only one thing to be sad over Mitch.   Living unhappily is something else.†Ã‚   Morrie also said that people become mean only when they are threatened which is what our culture does then they start looking out only for themselves and make money their god. Morrie made him realize how he has been giving more priority to his work instead of starting a family with his wife Janine.     Mitch realized that he really did need to invest in the human family and in people as what Morrie advised him.   Morrie showed him how to courageously face things in life even on the verge of death.   Having the last few weeks of Morrie’s life spent with him taught Mitch so many things that he would always hold dear. Mitch learned what mistakes to avoid, what to look out for, when to pay attention to his loved ones and hear them as if it were for the last time.   Morrie also made him understand that there is no such thing as â€Å"too late† for anything in this life. WORKS CITED Albom, Mitch. Tuesdays with Morrie. New York: Doubleday,1997               

Introduction to Cross-Cultural Psychology

Culture plays an important part in one’s life as it relates to the field of psychology. Culture enables one to define him or herself and differ from one to another, and helps one survive. Culture facilitates self-expression, through language, appearance, and behavior. Culture exists everywhere and is a product of one’s environment. The significance of culture and its influence by oneself and others will be explained in this paper. In addition, the role of critical thinking in cross-cultural psychology and the scientific method involved with cross-cultural research will be addressed, and defined.Definition of Cultural and Cross-Cultural Psychology Culture is learned, passed down, from generation to generation and strongly influences individual behavior. It is an existing element in one’s environment, shaped by oneself and many others. Culture either shapes or influences one and is what makes one human. Psychology is the study of human behavior and performance; the refore, it is vital that the cultural and cross-cultural aspects are considered in determining the cause of one’s actions.Behavior is affected by sources both biological and environmental in nature but these do not entirely explain human behavior. There must be an acknowledgement of the social-cultural conditions, in which behavior occurs. Thus, cultural psychology looks to identify the link that between culture and psychology. This recognition allows one to perceive that cognitive operations are variable products occurring between culture and oneself in the kind of environment by which one is surrounded (Segal, Dasen, Berry & Poortinga, 1999). Culture is two-fold, either bringing people together or pulling people apart.This newer discipline of cross-cultural psychology, acknowledges important factors and considers many cultures when defining the actions and behaviors of individuals. Culture should be not confused with society, race, and ethnicity. Though these factors contri bute to individualism, they differ from culture itself. For example, culture is a shared experience within a group and leads to specific behaviors among the group, whereas society is made of people. Cross-cultural psychology uses various approaches to facilitate one’s understanding of how human behavior varies in diverse cultural settings.These include evolutionary, sociological, and ecocultural. The evolutionary approach, for instance, considers biological factors contributing to one’s behavior whereas the ecocultural approach considers that a person cannot be acknowledged without considering one’s environment (Shiraev & Levy, 2010). The Relationship between Cultural and Cross-Cultural Psychology Cultural psychology interfaces with other disciplines, including philosophy, and anthropology. While other disciplines permit a wider perspective, cultural psychology focuses solely on how one’s culture affects his or her behavior and how this connection comes i nto existence.G Cultural psychology is aware that human energy cannot be solely explicated by other factors including one’s genetic predispositions. Instead, cultural psychology sees one’s mind and culture forming a unity that should be not separated when trying to explain behavior. On the other hand, cross-cultural psychology, despite interfacing with other fields such as anthropology and history, prefers to compare various cultures against each other while discovering more about differences and similarities and their effect on humanity.Both disciplines clearly consider the aspects of culture; therefore, their starting points do not differ much. However, they also deviate from each other in that cultural psychology is mostly concerned with understanding the relationship one has with a culture, whereas cross-cultural psychology is mainly interested in the comparison of various cultures (Shiraev & Levy, 2010). The Role of Critical Thinking in Cross-Cultural Psychology W hen used correctly, critical thinking can, and will benefit one in countless ways.Life, just as humanity itself, is very complex and at times, difficult to understand. Being able to go through life with a certain purpose and sense, and being able to understand human nature is not an easy task, often requiring specific knowledge and experience in doing so. Critical thinking provides the necessary tools to enable one to navigate through the fog of life with the determined intent. However, critical thinking is not something one is born with; rather, it is something that needs to be learned and trained.Thinking abstractly, being able to decipher problematic puzzles, coordinating thoughts accurately and intentionally, and being able to communicate succinctly require the use of critical thinking. Thinking critically means asking the right questions and solving problems. If one is unskilled and unqualified using the tools provided by critical thinking, then one most likely is not developin g to his or her fullest. Part of being able to apply critical thinking also means one can learn, and learn even more.Various characteristics describe a critical thinker and are, for instance, the correct use of language, the ability of organizing, and patience when making vital decisions (Hunter, 2009). All these above mentioned factors matter to the field of cross-cultural psychology. For example, language can be at times very tricky and therefore, lead to discrimination. The correct translation is very significant so that one can understand someone else in the way he or she wants to be comprehended. However, interlingual rendition is not easy and translating one word to another does not entirely mean the purpose of the word used is understood correctly.One clearly must know that language can be applied in many ways and can traumatize, be incontrovertible, and inspiring. Another way critical thinking supports cross-cultural psychology is in the research performed by this discipline . Being able to overlook biases, leave out emotions, chose right from wrong, and acknowledge the validity and reliability of research requires critical thinking skills. In addition, critical thinking becomes a necessity whenever a comparison is made of different groups and therefore cultures.These are just few of many examples of how critical thinking helps cross-cultural psychology. Without it, one’s understanding of how culture affects diverse behaviors could become affected leading to wrong impressions (Segal, Dasen, Berry & Poortinga, 1999). Methodology Associated with Cross-Cultural Research Research is very significant to the field of cross-cultural psychology. Without the implementation of research, the subjects appealing to cross-cultural psychology would mainly rely on assumptions. Cross-cultural psychologists are very interested in examining commonalities between cultures.He or she is occupied with how they interact with each other resulting in certain behaviors and psychologists do so by describing, explaining, foretelling, and managing. Doing research means carrying out a scientific investigation and using suitable methods. Cross-cultural psychology uses a research methodology that can be divided further into two subcategories, the quantitative and qualitative research. Quantitative research, which is done through observation, measures human behavior by utilizing the mode, the median, and the mean (central tendency).In this process, four different scales can be used to measure, which are nominal, ordinal, interval, and ratio. Alternatively, qualitative research is preferably done in unconditioned settings, also referred to natural settings. This kind of research method is chosen when measuring variables are impossible to collect, measurement tools are not on hand, and when specific scales cannot be read. Further, there are two different strategies, the application-oriented strategy and the comparativist strategy, from which a researcher can chose when conducting research.In addition, a researcher can also utilize and benefit from various strategies to collect samples such as through convenience, systematic, or random sampling (Shiraev & Levy, 2010). The psychological methods available to a cross-cultural psychologist to investigate are â€Å"observation (naturalistic and laboratory), survey (direct and indirect), experimental studies (independent and dependent variables), content-analysis, psychobiography, meta-analysis, focus-group method† (Shiraev & Levy, 2010, pp. 35-40). When conducting cross-cultural studies, certain obstacles may appear.For instance, language can create additional problems when research is done; therefore, the correct translation is essential. The researcher should be capable of translating a specific method as authentically as possible. In addition, a good researcher should also pay attention when comparing two phenomena (acknowledge similarities) and avoid biases of generalization at all times (Shiraev & Levy, 2010). Conclusion Because culture plays such an important part in one’s life, it is crucial to acknowledge it when determining the causes of one’s behavior.Culture is something appearing at all times and is manmade. Clearly, cultural and cross-cultural psychologies are two essential disciplines, which help one comprehend the affect culture has on an individual and his or her environment. Through cultural psychology, one can see the connection between culture, psychology, and therefore, behavior. Existing parallel to cultural psychology, cross-cultural psychology helps one acknowledge the differences and similarities existing between cultures and the affect they have on one’s action. Without it, one will never entirely understand the complex nature of humanity. Introduction to Cross-Cultural Psychology Culture plays an important part in one’s life as it relates to the field of psychology. Culture enables one to define him or herself and differ from one to another, and helps one survive. Culture facilitates self-expression, through language, appearance, and behavior. Culture exists everywhere and is a product of one’s environment. The significance of culture and its influence by oneself and others will be explained in this paper. In addition, the role of critical thinking in cross-cultural psychology and the scientific method involved with cross-cultural research will be addressed, and defined.Definition of Cultural and Cross-Cultural Psychology Culture is learned, passed down, from generation to generation and strongly influences individual behavior. It is an existing element in one’s environment, shaped by oneself and many others. Culture either shapes or influences one and is what makes one human. Psychology is the study of human behavior and performance; the refore, it is vital that the cultural and cross-cultural aspects are considered in determining the cause of one’s actions.Behavior is affected by sources both biological and environmental in nature but these do not entirely explain human behavior. There must be an acknowledgement of the social-cultural conditions, in which behavior occurs. Thus, cultural psychology looks to identify the link that between culture and psychology. This recognition allows one to perceive that cognitive operations are variable products occurring between culture and oneself in the kind of environment by which one is surrounded (Segal, Dasen, Berry & Poortinga, 1999). Culture is two-fold, either bringing people together or pulling people apart.This newer discipline of cross-cultural psychology, acknowledges important factors and considers many cultures when defining the actions and behaviors of individuals. Culture should be not confused with society, race, and ethnicity. Though these factors contri bute to individualism, they differ from culture itself. For example, culture is a shared experience within a group and leads to specific behaviors among the group, whereas society is made of people. Cross-cultural psychology uses various approaches to facilitate one’s understanding of how human behavior varies in diverse cultural settings.These include evolutionary, sociological, and ecocultural. The evolutionary approach, for instance, considers biological factors contributing to one’s behavior whereas the ecocultural approach considers that a person cannot be acknowledged without considering one’s environment (Shiraev & Levy, 2010). The Relationship between Cultural and Cross-Cultural Psychology Cultural psychology interfaces with other disciplines, including philosophy, and anthropology. While other disciplines permit a wider perspective, cultural psychology focuses solely on how one’s culture affects his or her behavior and how this connection comes i nto existence.G Cultural psychology is aware that human energy cannot be solely explicated by other factors including one’s genetic predispositions. Instead, cultural psychology sees one’s mind and culture forming a unity that should be not separated when trying to explain behavior. On the other hand, cross-cultural psychology, despite interfacing with other fields such as anthropology and history, prefers to compare various cultures against each other while discovering more about differences and similarities and their effect on humanity.Both disciplines clearly consider the aspects of culture; therefore, their starting points do not differ much. However, they also deviate from each other in that cultural psychology is mostly concerned with understanding the relationship one has with a culture, whereas cross-cultural psychology is mainly interested in the comparison of various cultures (Shiraev & Levy, 2010). The Role of Critical Thinking in Cross-Cultural Psychology W hen used correctly, critical thinking can, and will benefit one in countless ways.Life, just as humanity itself, is very complex and at times, difficult to understand. Being able to go through life with a certain purpose and sense, and being able to understand human nature is not an easy task, often requiring specific knowledge and experience in doing so. Critical thinking provides the necessary tools to enable one to navigate through the fog of life with the determined intent. However, critical thinking is not something one is born with; rather, it is something that needs to be learned and trained.Thinking abstractly, being able to decipher problematic puzzles, coordinating thoughts accurately and intentionally, and being able to communicate succinctly require the use of critical thinking. Thinking critically means asking the right questions and solving problems. If one is unskilled and unqualified using the tools provided by critical thinking, then one most likely is not developin g to his or her fullest. Part of being able to apply critical thinking also means one can learn, and learn even more.Various characteristics describe a critical thinker and are, for instance, the correct use of language, the ability of organizing, and patience when making vital decisions (Hunter, 2009). All these above mentioned factors matter to the field of cross-cultural psychology. For example, language can be at times very tricky and therefore, lead to discrimination. The correct translation is very significant so that one can understand someone else in the way he or she wants to be comprehended. However, interlingual rendition is not easy and translating one word to another does not entirely mean the purpose of the word used is understood correctly.One clearly must know that language can be applied in many ways and can traumatize, be incontrovertible, and inspiring. Another way critical thinking supports cross-cultural psychology is in the research performed by this discipline . Being able to overlook biases, leave out emotions, chose right from wrong, and acknowledge the validity and reliability of research requires critical thinking skills. In addition, critical thinking becomes a necessity whenever a comparison is made of different groups and therefore cultures.These are just few of many examples of how critical thinking helps cross-cultural psychology. Without it, one’s understanding of how culture affects diverse behaviors could become affected leading to wrong impressions (Segal, Dasen, Berry & Poortinga, 1999). Methodology Associated with Cross-Cultural Research Research is very significant to the field of cross-cultural psychology. Without the implementation of research, the subjects appealing to cross-cultural psychology would mainly rely on assumptions. Cross-cultural psychologists are very interested in examining commonalities between cultures.He or she is occupied with how they interact with each other resulting in certain behaviors and psychologists do so by describing, explaining, foretelling, and managing. Doing research means carrying out a scientific investigation and using suitable methods. Cross-cultural psychology uses a research methodology that can be divided further into two subcategories, the quantitative and qualitative research. Quantitative research, which is done through observation, measures human behavior by utilizing the mode, the median, and the mean (central tendency).In this process, four different scales can be used to measure, which are nominal, ordinal, interval, and ratio. Alternatively, qualitative research is preferably done in unconditioned settings, also referred to natural settings. This kind of research method is chosen when measuring variables are impossible to collect, measurement tools are not on hand, and when specific scales cannot be read. Further, there are two different strategies, the application-oriented strategy and the comparativist strategy, from which a researcher can chose when conducting research.In addition, a researcher can also utilize and benefit from various strategies to collect samples such as through convenience, systematic, or random sampling (Shiraev & Levy, 2010). The psychological methods available to a cross-cultural psychologist to investigate are â€Å"observation (naturalistic and laboratory), survey (direct and indirect), experimental studies (independent and dependent variables), content-analysis, psychobiography, meta-analysis, focus-group method† (Shiraev & Levy, 2010, pp. 35-40). When conducting cross-cultural studies, certain obstacles may appear.For instance, language can create additional problems when research is done; therefore, the correct translation is essential. The researcher should be capable of translating a specific method as authentically as possible. In addition, a good researcher should also pay attention when comparing two phenomena (acknowledge similarities) and avoid biases of generalization at all times (Shiraev & Levy, 2010). Conclusion Because culture plays such an important part in one’s life, it is crucial to acknowledge it when determining the causes of one’s behavior.Culture is something appearing at all times and is manmade. Clearly, cultural and cross-cultural psychologies are two essential disciplines, which help one comprehend the affect culture has on an individual and his or her environment. Through cultural psychology, one can see the connection between culture, psychology, and therefore, behavior. Existing parallel to cultural psychology, cross-cultural psychology helps one acknowledge the differences and similarities existing between cultures and the affect they have on one’s action. Without it, one will never entirely understand the complex nature of humanity.

Britain Between the Wars Essay

The armistice came into effect at 11.00am on 11th November 1918 and effectively brought the fighting on the Western Front to a close. In more than four years of war Britain and the Empire had lost more than 750,000 dead in France and Flanders, with many times that wounded and sick. The political and social life were ruined not only by the war, but also by the severe crises and by the dividing of the society into classes. The 1920’s and 1930’s were unhappy decades for most of the people in Britain. The Liberal Lloyd George enjoyed wide support by the Conservative party and duly formed a new coalition government. He immediately transformed the British war effort, taking firm control of both military and domestic policy. A general election the first for 8 years was held in December 1918. This election was often called â€Å"the coupon election†. Conservative leader Bonar Law identified candidates who agreed to support them with a letter of endorsement, signed by both, and known as a â€Å"coupon†. Coupons were issued to 159 Liberal candidates and 364 Conservatives though in some cases, they were rejected. This election are also considered the first universal elections in the United Kingdom of Great Britain and Ireland, in which for the first time the majority of poorer British and Catholic Irish adults were allowed to vote for Parliament. The decision of Lloyd George to create a coalition between the Liberal and Conservative party hardened the divisions within the Liberal party and after the election the division of the Liberal party was even deepened. In 1920’s the Labour party succeeded in overtaking the Liberal party and establishing itself as one of the country’s two main political parties. By the end of 1921 unemployment has risen beyond 2 million. There were several reasons for the decline in industry after the First World War. Structural weaknesses in the British economy meant a disproportionate number of jobs were in the traditional industries. A lack of pre-war technological developments and post war competition damaged the economy and the new industries which emerged employed fewer people. At the same time Britain began to lose her overseas markets due to strong foreign competition. A committee on unemployment was set up in 1920 and recommended public works schemes to ease unemployment, this led to the establishment of the Unemployment Grants Committee. The government wished, also, to return to the gold standard, a move which would have required cuts in public spending. In Unemployment Insurance Act 1920 extended unemployment benefits to cover all workers who earned less than  £250. The â€Å"Seeking Work Test† was introduced in 1921, it stated to receive full unemployment benefit there had to be evidence the recipient was looking for work. The Addison Act after Dr. Christopher Addison, the then Minister for Housing was passed to allow the building of new houses after the First World War, and marked the start of a long 20th century tradition of state-owned housing, which would much later evolve into council estates. Education Act or know as Fisher Act was enacted in the 1918, it extended educational provision, increased the powers and duties of the Board of Education, raised the school leaving age from 12 to 14 and gave all young workers right of access to day release education. (The raising of the leaving age was not immediately implemented, however, and had to wait until the 1921 Act). Other features of the 1918 Education Act included the provision of ancillary services (medical inspection, nursery schools, centres for pupils with special needs, etc.).

Water Rocket Design Research Paper Example | Topics and Well Written Essays - 2000 words

Water Rocket Design - Research Paper Example The typical construction of a water rocket consists of household materials such as discarded plastic bottles, water, duct tape etc. Typical water rockets are constructed out of plastic bottles. The plastic bottles may be used individually or in combination after cutting out their bases and joining them together. Water is filled inside the plastic bottle rocket body but some space is left empty. The plastic bottle filled with water and partially empty is then turned upside down and sealed. This aids preserving the water inside. Compressed air or other gas injected into the water filled plastic bottle pressurizes the water inside. Typical sources of compressed air include bicycle pumps or portable air compressors. Similarly, other gases such as carbon dioxide or nitrogen may be used using compressed gas cylinders. However, using nitrogen may be dangerous given the high compression ratios used to store nitrogen. The compressed gas tends to provide the means to store potential energy ins ide the rocket body. The stored potential energy is releasable from the rocket when desired. The mass fraction of the water rocket increases with the use of water. This allows the provision of greater impulse when compressed air and water escape from the water rocket body. In addition to water, other additives are also used to increase the mass fraction of water rockets. ... This paper will look into the construction of water rockets to teach students mathematical principles while looking into learning styles, safety and other pedagogical considerations. Water Rocket Design Principles Water rockets are a direct application of Newton’s third law of motion describing action and reaction. The release of compressed gas and water allows the rocket to lift itself skywards for considerable distances. The exact physics behind water rockets depends in large part on the stored energy inside the rocket and the air drag encountered by the moving rocket. However, a lack of standardized construction techniques means that a number of different physics models are used to delineate how water rockets operate. The final outputs from a water rocket include the total height achieved as well as the total duration of flight. These outputs depend on a number of different inputs including the pressure of compressed gas, the volume of water used, the nozzle configuration a nd the weight of the water rocket body. The relationship between these inputs and outputs are expressible in a variety of different ways. Various models are available to delineate the relationship between these inputs and outputs. However, none of the available models guarantees a high degree of accuracy so these models can be best used as approximations. Mathematical Relationships In order to simplify the relationship between the inputs and outputs for a water rocket, students were presented with a simple water rocket mathematical model. The physics behind water rockets requires exploration of advanced concepts such as (Gommes, 2010): incompressibility of water; compressibility of

Stages of Art development for children ages 2 thru 8 Essay

Stages of Art development for children ages 2 thru 8 - Essay Example For instances, the drawings are product oriented, and the child’s characterization and conception about the environment are more pronounced than objects. In this stage, the young adolescent is product oriented and his or her interest in drawing moves from drawing objects to drawing nature’s things such as the human body. He or she may also start drawing cartoons and exaggerated characters such as doodles (Krimsky, 1999). In an effort to improve the art and creativity experiences offered to children, I would provide the children with drawing materials and surfaces on which drawing would be done. I would ensure that the children in class have got enough space that would facilitate the drawing process. In addition to this, I would lay down measures aimed at making the children compete among themselves within the class setting. I would also bring them objects that they would be required to draw when they would be required to do so within the class. For me to implement the above improvements, I would require support from parents and the teaching staff. The parents of the children will contribute to this process by buying the children the required drawing materials. The teaching staff members will assist in guiding the children during learning lessons. I would also involve the school administration by asking them to allocate the students sometime that would be used in carrying out drawing activities. I would want to know the factors that would serve to motivate the children in drawing activities. I would be interested in enabling children to be creative and come up with unique drawings. In addition to this, I would also like to know how the children would be handled so that they develop their careers in drawing. Creativity may reduce with age in children during their growth stages, but it does not disappear permanently. In fact, older people may reclaim creativity that faded away at a young age. Development in artworks should be viewed