Thursday, November 28, 2019
I Want to Live free essay sample
I tried to fit inBe like everybody elseI was afraid to stand out because then I would have to stand by myself. It is not easyIt seems like the whole world is against me I want to get a decent job so I will have just enough to live like my neighborMy goals are set by opinions of majorityMy dreams are captured in my fears, I am no longer me. You need to get that bachelors degree even though your dream is to become a farmer and live in a country You go for nursing when you actually want to become a businessman, but afraid it wont work for you and you will fail if you go into business. No, youre not strong enoughYou go for security and safety So many demons in my headso little time to liveI am afraid to go running for my dreams, lost and desperate on my wayMy life seems miserable now. We will write a custom essay sample on I Want to Live or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page .I do what is socially considered normal,forgetting who I really am I need to find a way out of itConformity kills me inside. I am existing. I want to LIVE! I am waking up, I am opening my eyes. I look out of the window, and I no longer see window stains: I see a sunrise. Now I know: I can do this. Its possible!
Monday, November 25, 2019
Hip-Hop Nation Report Essays - African-American Culture, Hip Hop
Hip-Hop Nation Report Essays - African-American Culture, Hip Hop Hip-Hop Nation Report ENGLISH WRITING FOLIO EXPOSITORY TEXT FEATURE ARTICLE: HIP-HOP NATION WRITER: CHRISTOPHER JOHN FARLEY In the case of one expository text demonstrate critically how the author exploits language, tone, structure and emotion to promote a specific perspective or attitude to the reader on the subject. It's hard to stop a Cultural Revolution that bridges people together. This is a quote from a famous 'Rapper' who has been behind the Hip-Hop revolution since the start. He is Chuck D; the creator of Public Enemy, one of the biggest Hip-Hop acts ever. This quote condenses what the writer of the article is trying to promote to the reader in just a few words. For the last 25 years the conservative masses have been trying to stop, ignore and turn a blind eye to the Hip-Hop revolution, mainly because of its origins and political stances. Unfortunately for some this has failed miserably with Hip-Hop being the strongest it has ever been at the present. But people are now starting to accept it somewhat; for example record companies have been cashing in on its popularity for some time now. The writer of the Feature Article Hip Hop Nation Christopher John Farley is not a Rapper himself, rather an open minded person who has written a article to increase awareness to the masses of the culture of this phenomenon. PARA1 Hip-Hop is not about living on the range where the buffalo roam; it is not about meeting the perfect girl. It's about the good times and the bad; it's about winning and loosing, it is real. Rap songs are about what people see in their lives and there are no lies. This music is about living in the 'urban jungle.' The writer has shown this by discussing the inspiration of the many artists. The writer is also keeping it real by not just focusing on the big stars. He talks to people who are Hip-Hop, the people on the street. The writers has included quotes from them for example I'm Hip-Hop every day declares 28-year-old Marlon Irving He also explains how two keen kids hover over a computer creating some beats for a rap song they are writing. I going to change rap! one of them exclaims. This is all well and good but the reality is that Hip-Hop music is now the biggest selling music in the world. The writer has included figures that prove this. In 1998 it sold 81 million albums in America alone to County music's 72 million. If trends continue this will further increase. The article is the main feature of the February 8, 1999 issue of the Australian edition of Time magazine. The front cover features the Hip-Hop diva Lauryn Hill and the caption 'The music revolution that has changed America.' The article is stressing the point that this type of music is not just a fad but it is real and it is now dominating the music scene. This is further emfacised by statements such as after two decades, it has transformed the culture of America or And how will we remember the last days of the '90s? Most likely, to the rough-hewn beat of rap. The article spans twelve pages and includes a timeline of major events in Hip-Hop over the last twenty years. This shows that this music has been around for some time and it has had some big successes. The most important aspect of Hip-Hop is the message it is expressing to the observer. The article demonstrates this by including lines from influential or popular Rap tunes such as you might win some but you just lost one- Lauryn Hill or F___ tha police. Comin' straight from the underground-N.W.A. (Niger's With Attitude). Possible the two biggest Rap acts at the moment are Lauryn Hill and Puff Daddy. The writer has included a profile on both of the artists, which gives an insight to the types of people leading the scene. The two artists are quite different, as Puffy is a businessman with a Howard University degree and his own record label where as Lauryn Hill is into politics and fighting for the rights of people. The Article is concluded with an essay by Chuck D. entitled The Sound of Our
Thursday, November 21, 2019
Article Review Essay Example | Topics and Well Written Essays - 500 words - 20
Article Review - Essay Example He further advances that neither the present nor the past of the underdeveloped countries resembles any part of the developed countries, actually, the developed countries were never underdeveloped but just undeveloped (Andre, 1966). Far from what theorists believes, Andre argues that contemporary underdevelopment is to a greater scope the historical product of past and continuing economic and other relations between the satellite underdeveloped and the now developed metropolitan countries (Andre, 1966). Andre, goes through a series of hypothesizes to establish the approach appropriate in developing cogent theories on development of underdevelopment in the underdeveloped world (Andre, 1966). His hypothesizes are qualified by the history of the developed countries during their journey to development. He takes the examples of North America, Brazil, and Chile to show how capitalism and monopoly contributed to imbalanced development in these countries (Andre, 1966). For instance, Brazil underwent through industrial establishment during the Second World War but unfortunately, development was unfelt in the satellite parts. The hypothesis adopted is that the development of underdevelopment in the underdeveloped world is highly tied to colonialism and the economic injustices occasioned to these countries by the developed world. Analyzing the case of these countries establishes that they remain colonies of the developed countries through neo-colonialist. The developed countries for instance controls the market, they buy at a lower prices from these countries and sell at a higher price to them in return. This leads to the continued suppression of these countries by their developed counterparts. From the foregoing, it is ascertainable that the underdeveloped world is best fit to solve the problems of this world. This borrows from
Wednesday, November 20, 2019
Statistics Study Essay Example | Topics and Well Written Essays - 1000 words
Statistics Study - Essay Example several measured or binomial variables Multiple- linear regression or Multiple non-linear regression à Multiple logistic regression Cox proportional hazard regression Source: http://www.graphpad.com/support/faqid/1790/ The multiple regression can be done to portray the impact of both age and gender on the time spent to complete an assignment. Multiple regression tests how age and gender will change and predicts the time spent to complete an assignment. The linear regression equation is as follows: Y=bo+b1X1+b2X2, where Y is the completion time and X1 and X2 are age and gender. bo is the time when the predictor variable is zero. Values b1 and b2 are the regression coefficients. The regression coefficients show the change in time due to change in gender and age (Bottenbery, 2011). Ballard Integrated Managed Services Inc Pt.2 These sections contain an improved survey of the first one that was well planned and marketed. The survey was based on the importance of understanding the dissa tisfaction of the current employees and the increase of their rate of turnover. Another survey tool was designed. The questionnaires were distributed among the senior managers. The top management was invited to complete the research. The material was read for their understanding and for the flow of real completeness and actual wording (Triola, 2008). The question phrases and new items were incorporated in the design of the survey. The revised questionnaires were distributed among the senior management team. Before using the consensus of the group, they consented to the revised survey saying it was ready to be administered. With the help of five craft workers, they pre-tested the instrument. The pre-testers were on leave, so they comfortably conducted the review. The craft workers were used to avoid bias. Their inputs were incorporated in the final design of the paper. After consulting it was decided necessary to interview employees who no longer work with the organization. Their inf ormation would be useful in determining who would quit the organization in the future (Triola, 2008). Their response would help the company develop a model that would predict the future voluntary termination in the organization. The goal of the study was to create a statement of regression that would predict future resignation. The information would be useful in identifying the areas that are of concern to those employees that left. Therefore, frequencies and descriptive statistics were necessary. Because the objective of the firm was to improve morale and reduce turnover of employees, the mentioned crucial areas would be core attention to developing internal human
Monday, November 18, 2019
Minimum Wage Law Essay Example | Topics and Well Written Essays - 3000 words
Minimum Wage Law - Essay Example Their intent was to establish a national minimum standard of living and stabilize the economy by regulating pay of the poorest social class. The outcomes from this grand experiment are varied. Social activists maintain that it prevents greedy businesses and heartless corporations from exploiting the lowest wage earners. Economists hypothesize that it may actually reduce employment and deepen the wounds of poverty. Politicians seek to justify the law to constituent consumers and small business owners (many of whom pay must pay part-time workers above their market value). This paper will examine issues surrounding the Minimum Wage Law to determine the best approach for assuring low-end wage earners survive in a free-market society. Minimum wages ability to strengthen the economy remains subject to intense analysis and research. Legislators intend the law to provide workers and their families with a livable wage, yet many question whether it achieves that or whether it fits into our free market society. The New Deal and its associated recovery programs were viewed by some as "a drastic control of capitalist exploitation, involving a socially planned economy in which the depersonalized pursuit of private profit is subject to check at a thousand strategic points" (MacIver 836). In spite of these goals, traditional capitalists contend that the law contributes to inflation, creates unemployment, and harms small businesses. Some go so far as to call it unconstitutional and counter to the spirit of free market economics. Regardless of whether minimum wage fits into our free market ideology, leaders have an obligation to implement policies that offer significant overall benefits to the good of its citizens, especially those in the most need. This leads to three questions about regulating base pay: First, is it necessary to alleviate suffering, hunger, or inhumane hardship? Second,
Friday, November 15, 2019
Affect The Flight Time Of A Balsa Wood Glider Engineering Essay
Affect The Flight Time Of A Balsa Wood Glider Engineering Essay The purpose of the study was to obtain the relation between the flight time and launch height of a balsa glider of different wing area. Also the effect on flight time was recorded by changing the position of wings of the gliders. In the first part of the experiment the gliders were launched from four different height and the flight time was recorded. The experiment was conducted in a closed area in order to avoid the effect of wind. The gliders used were of different size and shape. The net acceleration acting on the gliders was also calculated by plotting a graph between square of flight time and launch height. In the second part of the experiment the wing positions for three different gliders were changed and the flight time was recorded in each of the three gliders. The launch height of the gliders was kept same. It was observed that as the launch height was increased the flight time also increased. The amount of lift could only be analysed by calculating the net acceleration in each of the gliders. The variation in the flight time due to the change in the position of wings was interpreted in terms of the increase in the loops made by the gliders i. e. the instability of the gliders or the moments of wings. Word Count- 221 Table of Contents- Introduction _______________________________________ 4 Theory _______________________________________ 5 Experimental Set up ___________________________________ 9 Method ________________________________________ 10 Result _________________________________________ 12 Conclusion _________________________________________ 22 Limitations ________________________________________ 23 Unresolved Questions _________________________________ 24 Bibliography ______________________________________ 25 Appendix ______________________________________ 26 Introduction: The question about aerodynamics has great importance in todays times and the various factors that affect aerodynamics of an aircraft or a glider is necessary in order to improve the efficiency. By taking up this experiment I have tried to analyse the acting forces on the flight of a glider such as the lift, the drag, and the weight also the theory of projectile motion plays an important role in determining the flight time of a glider. Also keeping in mind the laws of physics that relate to flight and also checking whether they are in accordance with the following experiment. Research Question- How the Wing area and position along with the launch height affect the flight time of a Balsa Wood Glider? The aim of this experiment is to study how the wing area, wing position and the launch height have an impact on the flight time of a balsa glider. In order to establish the above relations balsa gliders of different wing areas were hand launched from different heights and the flight time was recorded. As for the relation with the wing position and flight time they were hand launched as well from a fixed height with different wing positions. Theory The experiment is based on the theory of projectile motion, and fluid mechanics. Projectile Motion- When a body is projected from a certain height with a certain velocity, the acceleration on the body acts only in the downward (along y-axis) direction and the acceleration along the horizontal (x-axis) direction is zero. Since the air resistance also affects the horizontal motion of the body there might be some deceleration, however it is of a very small magnitude hence it can be neglected in the case of my experiment. The same explanation can be taken for the wind; there might be some component of the force (due to wind) which might affect the horizontal motion as well. This is also taken care of in the experiment as it is conducted in closed area. As the initial velocity is in the horizontal direction its vertical component is zero, by taking the vertical motion the flight time of the glider should depend on the height from which it has been launched and the net acceleration in the vertical direction. By varying the height in the experiment the flight time should also vary proportionately. As the height is increased the flight time should also increase. Due to the change in the forces acting on the glider the net acceleration can also change which in turn will affect the flight time. Forces There are three types of forces acting on a glider which are: Weight The weight of the body always acts in the downward direction. The weight of a body dependent on the mass of the glider and gravitational acceleration which can be taken constant for a given space. By Newtons 2nd law of motion, the weight is given by (F = mg) Ità is theà forceà due to the gravitational attraction of the earth on theà glider. But this force weight, which is the gravitational force, is different from the aerodynamic forces,à liftà andà drag.à The lift and the drag are mechanical forces that will act on the glider only when it is in physical contact with air which generates these forces. The gravitational force or weight is a field force; and is a non-contact force. The gravitational force (weight) between two objects depends on the masses of the two objects and the inverse of the square of the distance between these objects. The more the masses of the objects the stronger is the attraction, and closer the object are the stronger the attraction. Lift Lift is theà forceà that acts on a glider upward and helps the glider to stay in the air. The lift on the glider is mainly generated by the wings.à It is anà aerodynamicà force produced by the motion of air flowing through the glider. Lift acts through theà centre of the pressureà of the glider and is in the direction which is normal to the flow of air. Lift occurs when a flow of air isà turnedà by the glider. According to Newtons 3rd law of motion the flow of air is turned in one direction, and the lift is generated in the opposite direction. Since air is aà gasà and its molecules are free to move about, any solid can deflect its flow. For anà air foil, both the upper and lower surfaces plays part in turning the flow of air. There can be two types of lift static and dynamic lift. Static lift according to the Archimedes principle whenever a body is immersed in a fluid it experiences an upward force called the buoyant force. The factors on which the buoyant force depends are: The volume of the fluid displaced and; the density of the fluid. If the area of the wings increases the magnitude of the lift should also increase and the net force acting on the glider should also increases which in turn should decrease the net acceleration and hence increase the flight time. Dynamic Lift According to Bernoullis principle; the dynamic lift is due to the difference in pressure on the two sides of the body which is due to the difference in the speed of the air on the two sides of the body. There are various factors that affect lift, these are: Aircraftà wing geometryà has a large effect on the amount of lift generated. The shape and size of the wing will have a significant impact on the amount of lift generated. In order to generate lift there must be some velocity; hence if the object is moved in air then lift will be generated. Lift also depends on theà massà of the flow.it also depends in a major way on the viscosity and compressibility of air. Viscous force or Drag Viscous force is a mechanical force. The drag, like lift, is also produce by the interaction and contact of a solid body with air. For drag to be produce, the solid body must be in contact with the air. If there is no air, there is no drag. Drag is generated by the difference in the speeds of the solid object and the air. There must be relative motion between the object and the air. If there is no relative motion, there is no drag. Viscous force always opposes the motion, hence it will be opposite to the motion of the glider. The most of the factors affecting drag is same as that affecting the lift. The viscous force can be taken as the aerodynamic friction, and one of the sources of this force is theà skin frictionà between the molecules of the air and the solid surface of the glider. Since the skin friction is an interaction between a glider and the air, the magnitude of the skin friction depends on properties of both glider surface and air. The smooth, waxed surface of glider will produces less skin friction than a rough surface. And for the air, the magnitude of skin friction depends on theà viscosityà of the air. The relative magnitude of the viscous forces to the motion of the flow of air is called theà Reynolds number. Also the drag can be taken as the aerodynamic resistance to the motion of the object through the air. This source of drag depends on the shape of the glider and is calledà form drag. When air flows around a body, the velocity andà pressure around the glideà are changed. The pressure is a measure of the momentum of the air molecules and a change in momentum results in aà force, a change in pressure will produce a force on the body. This component of the aerodynamic force that is opposed to the motion is the drag. Viscous force directly depends on theà massà of the air flow going past the glider. Effect of Height on Flight time In this experiment there will be 4 heights taken but the height intervals will not be uniform in order to check the trend and see if there is a clear distinction in readings of flight time. As the height increases the flight time should increase as there is more distance to cover for the glider and since there are no forces acting as mentioned above, it is only the height that acts as a factor to change flight time. Wing area In this experiment the wing area should effect the flight time of the gliders as seen earlier, lift has a direct connection with wing area. As the lift increases the glider goes higher in the air thus increasing the flight time. Every glider has a different wing area and this makes a clear distinction between the flight times for the gliders. Wing position The wing position whether towards the front or back determines the stability of the glider while its flight. The more it is to the front of the socket it tends to do be more unstable and has a very loopy flight which increases the flight time. The further behind the wing is in the socket the more stable the glider is as the weight is more towards the centre of mass, making it more stable and also increasing the flight time however whilst a straight and balanced there are other forces acting on the flight that might pull it down to the ground. Experimental Set up Gliders In the initial stages the glider used were made by hand using a template to cut out the parts of the gliders. However these gliders lacked perfect stability and the edges had to be rubbed and smoothened in order to use make them completely aerodynamic. Even after doing so they lacked perfect specification and the material used to make them was not the right material hence they did not glide as required to. The gliders used in the later stages were bought online from amazon.com. These gliders are laser cut and ready to fly. They are made out of balsa wood. There were 3 types of gliders that were used, the parts of the gliders were precisely cut and well balanced in order to obtain a decent flight. The 3 gliders varied differently in shape, size, and weight and wing area. Area The experiment was conducted in a closed environment. The length of the place was approximately 35meters and width approximately 12meters. The wind factor was controlled as all doors and windows were shut and it was an enclosed area. Method: There were various steps that are involved in this experiment. The glider was first flown in an outdoor environment to check the flight. Since the wind factor cannot be controlled in an outdoor environment it was not possible to conduct the experiment outside as this affects the flight time. Hence an indoor area was chosen. Measuring Wing Area The gliders that will be used which each have different shape, size, and wing area. The first variable wing area cannot be measured by a given formula as it is not a uniform shape and cannot be broken into smaller shapes. The wing area will be measured by keeping the entire wing on a graph sheet whose each square area is known and the outline of the wing shape will be sketched out on the graph sheet. After having done this the number of complete squares of the known area that are enclosed by the outline of the wing will be counted. After this the number of incomplete squares and an approximation will have to be made as it is not feasible to calculate area of a fraction of the square. This will be done for each of the three gliders and will be noted down. In order to make sure that the gliders, glide properly without any hindrance and technical difficulty a test flight will be done. If there seem to be any technical problems with any of the three gliders they shall be fixed at first in order to provide accurate and legit readings. If any parts seem to be broken they will be fixed by the special adhesive which is used to stick balsa wood. Launching and Measuring Flight Time Keeping in mind that there are no holders or launching devices provided with these gliders they will have to be launched by the free hand as it is not possible to devise a launch method. This is so because making any alterations to the glider might distort its stability and will cause unequal weight balance. Although launching from the hand will have uncertainties such as different launch force and height it will be controlled as much as possible. In order to make sure the height is constant a plumb line will be taken and held from the comfortable launch height. This plumb line will then be measured in accordance with a metre scale. Every time a glider is launched it will be launched from the same height as the thread will be held at that height while launching the glider. The second height from which it will be launched will be after standing on top of a dining table. The height of the table will be measured by using another plumb line and will be measured in accordance to the metre scale. This height of the table will be added to the initial launch height and then a plumb line of that height will be held while the launch. The fourth height will be from approximately the first floor. The vast interval difference is taken so that there can be a clear trend that can be observed for the flight time. The height of the wall will be measured and then the initial height of the launch will be added to this. The fourth height will be from above a table on the first floor, in order to obtain this height the same step as the one for the table height on the lower level will be used. Taking the readings of the flight time will be done by using a stopwatch. It is not possible for me to do this alone as starting the stopwatch and launching the glider is not possible at the same time hence a little assistance will be required to measure the flight time. The assistant will start recording the flight time as soon as the glider leaves contact with my hand and will stop as soon as the glider touches the ground. These readings will then be recorded in a table. There will be 5 readings taken for each glider at each height. There are two wing positions possible either at the front of the socket or the back. Each gliders wings will be adjusted as front and back and for each position there will be 5 readings taken. Result Flight time for different launch height (Experiment1) Glider A Height (meters) Flight time (à ± 0.01s) Average(à ±0.13s) t2(sec2) 1.5 1.64 1.78 1.84 1.81 1.74 3.03 2.24 2.21 2.45 2.53 2.28 2.38 5.68 5.3 3.83 3.94 4.04 3.72 3.91 15.29 6.04 4.81 4.63 4.79 4.84 4.75 22.54 As the height was increased the flight time also increased. Since the glider used was the same and the speed with which it was projected also remained same the lift experienced by the glider did not change. The increase in the time was only due to the increase in height from which the glider was projected. Glider B Height (meters) Flight time (à ± 0.01s) Average (à ±0.13s) t2(sec2) 1.5 1.25 1.5 1.28 1.3 1.32 1.75 2.24 1.54 1.68 1.61 1.59 1.61 2.60 5.3 2.19 1.94 2.4 2.33 2.24 5.02 6.04 2.78 3.01 2.92 2.84 2.87 8.26 The trend between the time of flight and the height of launch was same as in the case of glider A. Glider C Height (meters) Flight time (à ± 0.01s) Average (à ±0.04s) t2(sec2) 1.5 0.93 0.90 1.01 0.94 0.94 0.88 2.24 1.16 1.21 1.24 1.19 1.19 1.43 5.3 1.57 1.59 1.55 1.6 1.57 2.45 6.04 2.1 2.12 2.11 2.15 2.11 4.47 The trend between the time of flight and the height of launch was same as in the case of glider A and B. hence in all the 3 cases it was found that the lift experienced by the gliders did not depend upon the height of projection or the height at which the glider was flying. As seen above in the graph the flight time of the glider is directly proportional to the height from which it has been released i.e. as the height increases the time taken by the glider to touch the ground also increases. According to the equation of motion 2 If we are considering the vertical motion then the initial speed in the vertical direction will be taken as zero then 2. The three forces acting on the glider that is the weight (mg), the drag and the lift are all constant. Since the drag and the lift depend on the speed of the glider it is not changing as the speed in all the cases are constant. The above relation can be made linear by plotting a graph between t2 and h from this graph the net acceleration acting on the glider can be calculated by measuring the slope of the graph. Since: 2. Net acceleration = 2/slope of the curve. Measurement of net acceleration of the glider. Glider A Calculation Net acceleration = 2/slope of the curve. Net acceleration in glider A= = 0.51 m/s2 Glider B Calculation Net acceleration = 2/slope of the curve. Net acceleration in glider B= = 1.62 m/s2 Glider C Calculation Net acceleration = 2/slope of the curve. Net acceleration in glider B= = 3.1 m/s2 The Glider C has the maximum acceleration and Glider A has the least. This also means that Glider C comes to rest much more quickly than Glider A, Glider A also has a longer glide time and this is because of the light weight and wing span that makes it more stable while in flight. Whereas when compared to Glider C the weight is much more and the glider isnt stable enough to stay in air for a long time. The wing area also has a significant impact on this as the more wing area means more lift however when we check Glider C has more wing area but it yet doesnt get enough lift; this explains that this glider needs more thrust when launched in order to stay in air longer than the others. Wing Position (Experiment2) Glider A Wing Position for A Position Flight time (à ± 0.01s) Average (à ±0.11secs) Front 1.72 1.85 1.9 1.68 1.77 1.78 Back 1.56 1.59 1.72 1.6 1.52 1.60 As seen above when the wings of the glider are moved forward the flight time of the glider increases. Glider B Wing Position for B Position Flight time (à ± 0.01s) Average (à ±0.11secs) Front 2.13 2.06 2.24 2.17 2.26 2.17 Back 1.66 1.59 1.63 1.82 1.74 1.69 As in the case of Glider A when the wings of the glider are moved forward the flight time of the glider increases. Glider C Wing Position for C Position Flight time (à ± 0.01s) Average (à ±0.12secs) Front 1.47 1.59 1.61 1.53 1.42 1.52 Back 0.84 0.79 0.94 0.75 1.03 0.87 As in the case of Glider A and B when the wings of the glider are moved forward the flight time of the glider increases. As we can see in the graphs above the time taken for the flight when the wings are in front is more than the flight time for when the wings are pushed backward. This is because the forward wings make the flight of the glider much more unstable and cause it to loop more. The looping increases the time to touch the ground as it causes sudden immediate lift and this also increases the horizontal gliding time. Whereas on the other hand when the wings are pulled back in order to make the flight more stable but there are still other factors like weight, lift and drag that are constantly affecting the flight and causing it to descend. Conclusion: In the first part of the experiment it was found that the flight time increases as the height from where the glider was launched increases. I each of the 3 gliders the lift acting on the glider did not change as the area of the glider remained same. The change in the flight time was only due to the change in the height of the launch. The graph between the height of launch and the square of flight time gave the measure of the net acceleration in case of the 3 gliders which in turn could be interpreted in terms of net force acting on the glider. The measure of net acceleration showed that the lift produced in case of the gliders increased with the wing area. The lift in the case of Glider A was found to be maximum, as it had the maximum wing area. In the second experiment the flight time increased as the wing position was shifted towards the front of the glider. The trend obtained in all the three gliders was the same. The increase in the flight time was due to the increase in lift that made the glider shoot up and loop in the air. As the glider looped in the air the height also increased which in turn increased the flight time. The increase in the loop made by the glider was due to the instability produced by shifting the weight of the wing to the front of the plane. Limitations: There were several limitations while doing this experiment. The first and what can be considered as the most important is the launching technique. This is the most crucial part of this experiment and all the readings depend on this. Due to the fragile bodies of the glider there could be no launching technique devised that would make sure the force on each launch is the same. The lift acting on the glider depends on the speed of the glider; if the launching speed varies it can affect the lift experienced by the glider. Since it is not possible to neither control the force used for each launch nor measure it, it was the biggest drawback. When the experiment was conducted in the open the wind factor had a great impact on the flight of the gliders. The gliders being light and very fragile, the wind outdoor was drifting the gliders into different directions and also slowing them down. This change in path and time was random and unpredictable. Since it was not possible to control the wind the experiment was carried out in a closed environment, yet there was some wind that affected the flight and caused slight deviation in path which could have possibly increased the flight time or even decreased it. Since the gliders were launched several times and had not landing mechanism as well, the rough landing chipped quite a few parts of the gliders that made the flight for the later readings relatively unstable and defective. Unresolved Questions: The effect of projection velocity on the flight time was not clear as the gliders were launched with almost same velocity and force. The speed with which the glider moves effects both the lift on the glider and the drag acting on it. The two forces are very important in deciding the flight of the gliders. By designing a proper launch mechanism the effect of speed or the launch force would had been studied. Also the efficiency of the flight could have been studied by measuring glide ratio i.e. the ratio of the horizontal distance travelled and the loss of height travelled in a given time. Bibliography Books: Giancoli, Douglas C., Physics Principles with Applications, 6th Edition, Pearson Education Limited, NJISBN: 0-13 -184661-2-1. Nelkon, M., and Parker, P., Advanced level Physics, London, Heinemann Educational Books Limited, ISBN 0-435-68636-4 Tsokos, K., A., Physics for the IB Diploma,5th Edition, Cambridge University Press, ISBN 978-0-521-13821-5 Websites: http://en.wikipedia.org/wiki/Gliding_flight http://www.grc.nasa.gov/WWW/k-12/airplane/glider.html http://www.skysailing.com/pages/theory.htm http://web.mit.edu/16.00/www/aec/flight.html
Wednesday, November 13, 2019
Johnny Got His Gun Essay -- essays research papers
dignity because he could no longer interact with other humans. It was the authorââ¬â¢s idea of the worst case scenario that could have occurred to a soldier who was injured. The description of his injuries gave the reader a picture of what it would be like to have lived with no legs, arms, or a face. It was a gruesome thought that helped personalize the story by making the reader feel bad for the main character. At this time many perceived fighting in a war to be noble but for most of the soldiers it was anything but noble. Many times television shows, movies, and books had glamorized war, but that was not the truth. This book showed the harsh reality of war that most people didnââ¬â¢t know existed at the time. War is something that no man should ever hope for, but young men were told that it was glorious to fight for your country. The reality was that they put their lives on the line every day to fight for their country. It may have been heroic but definitely not glamorous to kill another human. In some cases, soldiers who were in wars had severe mental problems when they would return home from war because of the brutality they saw. When Joe finally became conscience of his surroundings he realized what had happened to him. Due to his injuries Joe was isolated from the rest of the world. This made it so that he didnââ¬â¢t even know if he was awake or sleeping. He kept having flashbacks to the war and to his life previous to the war. Then when he realized that his life was over he wanted to end it but he had no power to. He told others through morse code but they denied him death. The life that Joe Bonham led after his injuries was in no way glamorous but instead the worst possible way to live When I originally started reading this book I thought that war was a necessary part of our society to keep other countries in order, but now I realize that war serves no purpose whatsoever. It is just a waste of resources and life that could be better used. I still believe that we should have an army to protect us but I now feel that we should use more restraint when sending in military force. In most cases it is not necessary to shed blood in other countries. I believe that our army should only be used in extreme cases when there is no other solution. In most cases it would be possible to resolve a problem without fighting but it is easier to just... ...ke the reader suffer, but to create recognition of the psychosis involved in co-existing with war. Johnny Got His Gun is not a wholeheartedly pacifist novel. Like many social protest works of the 30s, it ends with a call to arms against the masters of war: "If you tell us to make the world safe for democracy we will take you seriously and by god and by Christ we will make it so." The novel embodies the blunt, defiant anti-militarist spirit of Eugene Debs, Socialist Party writer Mary Marcy and Gen. Smedley ("War is a racket!") Butler, the much-decorated WWI general who later changed his mind about war. Shortly after the publication of Johnny Got His Gun, this spirit waned as support for the new war effort enveloped the majority of the Left. (In 1947, Trumbo would become one of the "Hollywood 10" who defied the House Committee on Un-American Activities and were jailed and blacklisted for their stand.) Then a generation later, along with that spirit, the novel resurfaced unexpectedly. They keep each other alive. Trumbo, who died in 1976, would have appreciated how quickly the hoopla for the Gulf War evaporated. His book played a part in that. Watch for
Monday, November 11, 2019
Examine the Characteristics of Mystical and Conversion Experiences Essay
wo well-known categories of religious experience are Conversion and Mystical experiences. Throughout history there have been many reports of people having these religious experiences, and not all of the recipients are necessarily Christian in belief. Famous examples of conversion experiences include St Paul on the road to Damascus, and an example of a mystical experience could be the story of Theresa of Avila. Firstly I am going to look at the characteristics of mystical experiences, followed by an example of a mystical experience that I shall analyse before moving on to doing the same for conversion experiences. A philosopher called William James has designed a series of tests to see if a mystical experience conforms to a pattern that has arisen through the history of these experiences. William James said that the receiver of the religious experience should be passive, i.e. does not go out of his or her way to trigger the experience, it happens to them without their provoking it. The experience should be ineffable in that in the aftermath the receiver finds it very difficult to describe what had happened and how they had felt in normal communication, thirdly that there is a noetic quality to these experiences, meaning that some truth or great fact is revealed to the recipient of the experience. Finally the experience should be transient, this means that the actual experience should not take very long at all, perhaps a few hours, but afterwards it has a very long, if not lifelong impact on the person who had the experience. Mystical experiences often have an example of the defying of the laws of nature and physics, for example the hearing of voices or seeing of visions, or receiving of the wounds of Christ, the Stigmata, that came from nowhere and have no rational explanation. An example of a mystical experience, as I mentioned earlier, is the story of Theresa of Avila. Theresa was a Carmelite nun who had been raised as being deeply religious; when her mother died she turned to the Virgin Mary and became a nun. Throughout her life she was often seriously ill and during these bouts of illness she claimed to have experienced religious ecstasy, in which she saw a cherub repeatedly stabbing her in the stomach with a fiery spear, and where he stabbed her she felt bliss and pain equally. In one bout of sickness she lost the use of her legs for three years, and during this time she stopped praying until she was convinced by a priest to start again. Not long after she began praying again she experienced holy delights from God, which were moments when her senses were overwhelmed by the presence of God. Alongside this she experienced the levitation, meaning that she claimed to have had her body raised off of the ground by the Holy Spirit. The levitation is the main mystical experience of Theresaââ¬â¢s life; this is a very clear example of how the laws of nature are defied by the power of God. The experience is passive as she was ill in bed at the time, it wasnââ¬â¢t ineffable however as she could clearly explain what had happened, however the experiences of having her senses overwhelmed by the Holy Spirit that accompany the levitation certainly were ineffable. There was no great truth revealed directly but there is a lesson in her story. And that is that the Lord will watch over and take care of us when we are sick. It is hard to tell whether or not the experience was transient, as while the levitation took place over just a few minutes, we cannot know how deep an impact it had on Theresa, as she was already deeply religious, we cannot easily see how she changed as a person. Now we move onto conversion experiences, the most key characteristic of a conversion experience is that the recipient of the experience has a complete switch around of their religious beliefs, they are converted. This conversion stays in place for the rest of the experiencerââ¬â¢s life, the religious experience is transient. Conversion experiences can be either gradual or sudden, meaning that a personââ¬â¢s beliefs can change over time due to different stimuli or events, or they can change swiftly as a result of an undeniably holy action. An important fact to remember when discussing conversion experiences is that they can occur not just in regards to an individualââ¬â¢s religious beliefs, they can also impact on political and social ideals as well, and these kinds of conversions follow the same pattern as that of religious experiences. The example of a conversion experience I am going to talk about is the conversion of St Paul on the road to Damascus. Before his conversion Paul, or Saul as he was known, was a Pharisee who harshly persecuted the early Christians and was not in any way inclined to believe in the teachings of Jesus. One day Paul was riding down the road to Damascus, as he drew near to the city a light shone down from heaven and Paul was cast down to the ground, then he heard a voice saying ââ¬Å"Saul, Saul, why do you persecute meâ⬠? The voice identified itself as Jesus and instructed Paul to go to the city where he will be instructed further. The men accompanying Paul were amazed, as they had heard the voice, but had seen no man or any vision as Paul had. Paul opened his eyes, but found that he had been blinded, perhaps by the brilliant light, his men led him to the city and there he stayed, blind, not eating or drinking for three days. After the three days his sight returned, and he was convinced that he had seen the resurrected Christ. After the experience Paul could be found in the company of the disciples that were in Damascus, which shows a very large turn around in his ideals, because before the experience he would have arrested and persecuted those men. This story is a good example of a conversion experience as it shows a very big contrast in the subject before and after the experience, which is as I said previously, the main characteristic of a religious experience. To conclude the essay I would just like to summarise the characteristics of both mystical and conversion experiences, mystical experiences are most easily identified when evidence of supernatural even ts take place, such as the levitation, while conversion experiences are clearly shown in the change of the recipients religious or political ideals.
Friday, November 8, 2019
Fahrenheit 451 and Guy Montag.
Fahrenheit 451 and Guy Montag. Essay about Guy MontagThroughout the book Fahrenheit 451, Guy Montag changes from a relatively "typical" fireman who follows the laws of his society into a person who challenges the laws and eventually becomes an "outcast".In the book Clarisse McClellan, the 17-years old girl, questions Montag about his life now and the life he has always lived. Near the start of the book Clarisse asks Montag "are you happy" (10), a question that makes him admit later on that "he is not happy" (12).The fact that Montag actually thinks about Clarisse's question later on and starts admitting to himself that he is not happy is a big step for Montag. In fact he shows how he is no longer living as "one" with society which focuses a lot about "happiness". Thereby, Clarisse is the first to encourage Montag on his way to self-awareness.After Clarisse's question Montag starts thinking about his wife, Mildred, and whether they really love each other or not.Jerzy Montag, German Green Party politicianTherefore t o find out, Montag asks Mildred if she remembers where they met the first time.The fact that Montag actually asks Mildred if she remembered where they met the first time shows how Clarisse's question influenced Montag in many ways. Montag would not have asked Mildred about such a thing if he had not come into interaction with Clarisse, because before he met Clarisse he really did not think about how his life was. The fact is that neither Mildred nor Montag remembers where they met the first time. He realizes that he is unhappy in his relationship with his wife, Millie, who is unwilling to deal with reality and instead chooses to immerse herself in an obsession to tranquilizers the virtual world provided by her television and radio.Montag did not read books...
Wednesday, November 6, 2019
OF MICE AND MEN AS A PARABLE essays
OF MICE AND MEN AS A PARABLE essays Of mice and men as a parable is the best description of this book. The main parable of this book would be the ending in which George kills Lennie. I will compare it to the biblical story of Cain and Abel to George and Lennie. Cain and Abel were both sons of Adam and Eve. Cain was the first born and Abel was the second. Cain was a farmer and grew many vegetable and grains. Abel was a shepherd who looked the family herds. They fought like regular brother and sisters. But the love they had was very strong. Adam and Eve told Cain and Abel that they need to sacrifice a lamb to show God how sincere they were about what he had done for them. Abel was very concerned always trying to do a good thing. He sacrificed the best lamb and offered it to the Lord. He wanted to do the try to do the best for God. Cain was inconsiderate he didnt want to sacrifice a lamb, he would rather sacrifice litter. He wanted to burn some extra straw that he has, which would not waste his time. As Cai n and Abel placed their offering on the altar, something happened! Abels lamb burnt up completely whereas Cain watched his straw just smolder. Cain was jealous at the thought of Abel being preferred over him. He didnt take the time to realize that Abel was just doing what he knew best. Cain got really angry at his brother. While Cain went for a walk with Abel, Cain struck Abel to the ground and killed him. Cain was concerned that someone might have seen him kill his brother more then being sad that his brother died. He was happy to look around and see no one. The Lord spoke and asked where Abel was, and Cain replied with Am I my brothers keeper? God spoke back to Cain and asked him why he could be so cruel to his brother, while his brother just tried to do the best for God and him. Cain fell to the ground sobbing, realizing what hed done. In the story of George was the o ...
Monday, November 4, 2019
Smith and Marx Document Analysis Essay Example | Topics and Well Written Essays - 2250 words
Smith and Marx Document Analysis - Essay Example The Wealth of Nations (1776) composed by Adam Smith is a historical text which advances the idea of capitalism. Capitalism sets the foundation for Americaââ¬â¢s government and economy. Adam Smithââ¬â¢s view is to encourage a liberalization of the world market with no barriers to trade. Smith lives and writes The Enlightenment period of world history during which the light of reason shines. Revolutions are being kindled; old social orders are being done away and free-thinkers emerge with new perspectives. Regimes such as aristocracy, monarchy and feudalism begin to experience the action of undermining and another group is surging into power, the nouveau-riches ââ¬â a people who earn fortunes from industry. Absolute control is no longer pleasing to the enlightened ear. Instead, independence obtains wide currency. According to the Communist Manifesto, the essence of history comprises of class struggle. Marx and Engels commence with the statement that "the history of all hitherto existing societies is the history of class struggles." The Marxist document launches into a narrative explaining that from the dawn of Greco-Roman civilization to the time of the manifestoââ¬â¢s publication, history has its roots deep in the conflict of dual ideologies. One dominant camp, ââ¬Å"the oppressor,â⬠seeks to retain a monopoly on wealth and power; whereas the recessive consisting of ââ¬Å"the oppressedâ⬠serves to fulfill the interests of the powerful. The divergence of ideas engenders both overt and subtle war between ruling and servant classes. Again,à Marxà and Engels reiterate that ââ¬Å"the history of all past society has consisted in the development of class antagonismsâ⬠(The Communist Manifesto). The pyramidal structure or gradation of society remains as a threat to harmony among social classes. From antiquity to modernity, the dichotomous conflict with respect to class
Friday, November 1, 2019
Personal Finance Assignment Essay Example | Topics and Well Written Essays - 500 words - 1
Personal Finance Assignment - Essay Example The current disposable monthly income after paying their fixed monthly expenses is $2,423 a month. The couple has to set some long term financial objectives. These objectives must be projected based on the amount of money that the couple currently has available. The fixed monthly expenses of the couple are $935. There are other variable expenses that occur during the month such as lunch money, additional gasoline expenses for leisure trips, car maintenance, entertainment, and medical expenses which must be considered in a budget. Sam and Judy must allocate approximately $500 for additional expenses. The total fixed and variable expenses of the couple are $1,435. The amount of disposable income Sam and Judy have after paying all their fixed and variable expenses is $1,923. It is time for Sam and Judy to set some short, medium, and long term financial goals. In the short term the couple must create a savings and investment plan for their future. The most common types of investments are stocks and bonds (Besley & Brigham). The cash that the couple has left over after paying variable and fixed expenses amounts to $23,076 for the first year. The $23,076 should be divided into savings, investment, and retirement plans. The allocation ratio of the plans is divided in the following manner: 65% savings, 25% investment, and 10% retirement plan. The short term goal of the couple should be to save enough money to get a down payment for a house. The most valuable asset of most Americans is the equity of their homes. The couple should target buying a home worth $150,000. To be able to buy the home the couple must save at least $15,000 for down payment and closing costs. The down payment of the home is 7.5% and 2.5% for closing costs. It will take Sam and Judy 12 m onths to save the $15,000. The mortgage payment of the $150,000 loan with a 7.5% down payment for a term of 30 years is $745. The couple after year one
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