Industrial Revolution Essay - 1057 Words

The capitalist The Industrial Revolution was a innovative period between mid 18th century through the 19th century, making people go from a predominantly agricultural existence into a more urban lifestyle. Starting after year 1750, all the factors that combined, made Great Britain the best place for industrialization. The primary assessment that made it possible was the invention of machines that could do work that was previously done by hand. This allowed production to shift from inside homes into factories. During the industrial revolution, new inventions were plentiful and helped to revolutionize the way in which people lived. Steam power, capitalism, representative government, transportation, and the scientific methodology made the†¦show more content†¦system was one of the most productive systems in the history of humankind. The average life expectancies of citizens have more than doubled since the capitalist system went into effect. The system was economics under which ownership of investment in the means of production and distribution depends chiefly upon corporations and independent individuals. Instead of humankind controlling the direction of its own progress, humanity is at the compassion of an economic system which it has itself created. Capitalism helped more food, water, clothing, and shelter be produced using less labour than ever before. It would seem that the material problems of survival was starting to be solved. The capitalist system was so successful that we still use it to this day. Representative government is an electoral system where people vote to elect running candidates to represent their very own interests. The members elected meets for debates and design laws on all behalf of the society instead of the government voting for their own made up laws. It has been adapted quickly by news programs and media; the media blows up news all over the internet and television nowadays. When representative government first started, you may have been talking to a small town of thirty people. Now if you speak to that small town, you might as well be speaking to the whole world if the media is there because everyoneShow MoreRelatedEssay on Industrial Revolution1489 Words   |  6 Pagesenvironment. Industrial revolution was so fundamental that it’s often compared with the transition from farming to stock raising, which began several thousand years before the birth of Christ. Considering the uses of natural resources, can human history be dived up into three pieces of varying length; hundreds of thousands years before â€Å"the agricultural revolution†, thousands of years between this and the Industrial revolution and the two hundreds years after the beginning of Industrial revolution. BeforeRead MoreIndustrial Revolution Essay766 Words   |  4 PagesAmerican Industrial Revolution In the 19th century, America became an industrial country, the powered machinery shifted the industry into mass production. The development of steam engines improved the transportation system, further, increased the production of iron and steel. The textile industries have begun to develop, and produce various products. The industrialization leads to accessible banking, further, deliver telegraph communication to many businesses through locomotive trains. This essayRead More Industrial Revolution Essay1623 Words   |  7 Pageshuman culture since the advent of agriculture eight or ten thousand years ago, was the industrial revolution of eighteenth century Europe. The consequences of this revolution would change irrevocably human labor, consumption, family structure, social structure, and even the very soul and thoughts of the individual. This revolution involved more than technology; to be sure, there had been industrial quot;revolutionsquot; throughout European history and non-Eu ropean history. In Europe, for instanceRead MoreEssay on Industrial Revolution1279 Words   |  6 PagesIndustrial Revolution Europe during the eighteenth century was at the height of the industrial revolution, none of which reached America. In New England the population was largely English, but America as a whole had more than 20 ethnic strains present, nowhere in Europe could such a heterogeneous mixture be found. America was unique in its political structure. Americans vested authority in personalities, rather than, as in England, in institutions of tradition. As a people they had been stripedRead MoreIndustrial Revolution Essay841 Words   |  4 Pages19th century, a period of industrial revolutions transformed the west as it is known and the people living there. The first and second industrial revolutions shaped the west as it is today through changes in manufacturing, labor, and the exchange of ideas and goods. Inventions and ideas of the time changed the way goods are made. Advances in manufacturing, whereas previously, families would work in their homes and rural farms with many workers, after the industrial revolutions, manufacturing was doneRead MoreIndustrial Revolution Essay734 Words   |  3 PagesDue to the Industrial Revolution, many changes started occurring in this new era such as the factories began to use more mechanics, limiting skill needed to produce products as well as hastening the harvesting of raw materials. Secondarily there was a huge standard of living and wage drop in cities due to urbanization which occurred after the factories created an abundance of jobs. Also, there was a huge shift in the population and there was a massive population growth due to the excess food andRead MoreEssay on The Industrial Revolution1366 Words   |  6 PagesThe Industrial Revolution Introduction to the Revolution The Industrial revolution was a time of drastic change marked by the general introduction of power-driven machinery. This change generally helped life, but it had its disadvantages as well. Pollution, such as Carbon Dioxide levels in the atmosphere rose, working conditions declined, and the number of women and children working increased. The government, the arts, literature, music, architecture and mans way of looking at life allRead MoreIndustrial Revolution Essay763 Words   |  4 Pagesï » ¿ The Industrial Revolution The Agriculture Revolution was a time when people worked the land by using simple hand tools. By the 1800’s, most people in Western Europe and the United States lived on farms. The nation’s economy was based on farming and the making of goods by hand and trading. They lived in rural areas in little cottages lit with firelight and candles. They made their own clothes and grew their own food. The system of making your own clothes was called the putting out systemRead MoreThe Industrial Revolution Essay972 Words   |  4 PagesConditions of laborers and the role of women in society has been constantly evolving over the course of history. However, these two major groups experienced the most drastic alterations during the Industrial Revolution. Between the 19th and early 20th centuries, laborers diversified in age, while labor conditions declined. During this same time period, the role of women was reinvented as females searched for work and changed their role within the family. To begin, industrialization was the instigatorRead MoreThe Industrial Revolution Essay847 Words   |  4 PagesThe Industrial Revolution During the 1800s, phenomenal changes took place in America. These changes would impact our society incredibly for years to come and even still in the present. The major changes that took place were in transportation and industry. American society expanded so much in the early 1800s that it very well could have been the only time in history where this happened in such a short amount of time. From steamboats to railroads and from textile mills to interchangeable parts

Facilitating Innovation in Leisure Service

Question: Discuss about the Facilitating Innovation in Leisure Service. Answer: Introduction It would be correct to say that organizations require the support of strong leaders so that organizations can grow and develop. The leaders of organizations have realized that managing change is one of the most difficult tasks. The objective of this report is to discuss the topic of managing organizational change. It is expected that this report would be useful for the senior manager of the hypothetical information. When considering strategy and guidance with change, Anderson Anderson, (2010) provide strategies of change using five core elements of change. These elements explain the most effective forms of change in the organization and how they are best used. It is expected that the lack of support from employees could be one of the biggest hindrances in the entire change management process. Therefore, it is important that change agents should focus on effective communication channels. The drivers of the reasons of the change should be communicated to all the employees at different levels. This is a great starting point when needing to better understand change and the success it can bring. It is important that the change should be initiated from the top leaders and senior management. It is believed that the change management is relatively easy for small organizations as compared to the large organizations (Mishra, 2013). The organic, horizontal structure generally found in small organizations seems ideally suited for idea generation and implementation, in large part because all employees are working together closely and form a sort of de facto innovation task force. Larger, well established organizations with more bureaucratic, vertical structures will likely have to take specific steps to harness their potential for idea development and implementation. The paper also discusses various change management models like Kotter change management model, Lewin change management model etc. It is expected that this report would be useful for senior manager to manage the change i n an effective manner (Worley Mohrman, 2014). Analysis Authors argued that the change in the organization should be driven from senior leaders. If leadership comes to a meeting and says Corporate is making us do this, this and this. We have to do it so lets get it done then the change is going to have a negative connotation and those negative attitudes will continue. However, if leadership comes in and paints a picture of an opportunity to grow and improve, and displays a positive attitude about the upcoming changes, it will be much easier for other employees to follow suit (Bucciarelli, 2015). It is important that innovation should be an integral part of change management process. The organizations can use the ambidextrous approach to integrate innovation with change. An ambidextrous approach allows for creativity in discovering new ideas and implementation of those ideas, when the organization is ready to move forward with the proposed change. According to Daft (2016), The organization can be designed to behave in an organic way for exploring new ideas and in a mechanistic way to exploit and use the ideas (p. 430). This is an effective way to handle change, because it combines the two necessary elements of creating and implementing, utilizing two common organizational structures. This approach is more effective than either a purely organic or a purely mechanistic approach. Organic structures may lack the ability to bring a new idea to fruition, while a mechanistic structure may lack the characteristics necessary to allow for innovative thinking (Hornstein, 2015). Shafiee, Razminia, and Zeymaran (2016) stressed the importance of choosing the appropriate organizational structure, stating that organizational structure is considered as one of the essential provisions for successful adaptation with changes (p. 161). Appelbaum Habashay (2012) outlines in detail the concept of organizations taking a change management approach relative to growth and development of organization. The main ingredients are the matching up of innovation and change processes and thus exploiting growth possibilities to achieve future organizational goals. It is important that the organizations must be able to assess the internal environment before taking any change decision. It is believed that the small organizations are able to assess them quickly as compared to the large organizations. Therefore, literature suggests that managing organizational change is relatively easy for small organizations as compared to the large organizations. The successful implementation of any change would also depend a lot on the change agents. It is suggested that the organizations should have a talented pool of employees that can manage the change in the organization (Hornstein, 2015). If the company is in the early stages of existence or if they are in the process of re-creating themselves through new or existing product innovation, the ambidextrous approach may be preferred over other approaches to growth and development. The logical model of Kotter change management model can be shown as: Kotter provided and integrative model of organizational dynamics that could be used as a framework to change management. The Kotter model suggests that in order for an organization progressing through different developmental stages and experience growth over multiple levels of the company, they must be able to confirm to internal and external rules. According to Duerden, Lundberg, and Shurma (2016), Organizational relevance and longevity are tied to the ability to strategically innovate. Organizations that effectively innovate to best position themselves to address and take advantage of changing circumstances thrive (p. 49). This is why a change management approach is so important for organizations. The literature suggests that change management approach has improvements for organizations such as increased productivity, faster turnaround, shared learning, and a higher development satisfaction (Vinekar, Slinkman, Neru, 2006, p. 32). The effective and reliable change management approach like Kotter change model or Lewin change management model can help organizations. The snapshot of the Lewin change management model can be shown as: The Lewin model of change management suggests that all the three stages are critical for organizations. The first stage of the Lewin change model is the unfreeze stage. This is the stage where the urgency of the change is created. It is the stage where the senior managers should take all the employees together. The next and the most difficult stage of the change management model is the change stage. This is the stage where change actually happens. This is the lengthy stage in the entire change management process. The last stage is the Refreeze stage. This is the stage in which changes are freeze and organizations are ready to take the benefits of change. The challenge for organizations has been adjusting to discontinuous change as organizations grow within fast-changing global and technological climates. Tushman and OReilly (1996) emphasized the focus on culture as the counterbalance to strategy and technology through the example of IBM. IBM had a $8.1 billion loss in 1993 and the ch ief executive was quoted as having said the organization became too bureaucratic and preoccupied with IBMs own view of the world squandering talent and technology (Tushman OReilly, 1996). The focus on organizational structure and effective change management helps an organization produces a dual structure to deal with the paradox of stability and change (Vinekar, Slinkman, Neru, 2006, p. 32). Therefore, it is recommended that organizations should have a flexible organization structure. The flexible organization structure would enable the organization to take quick decision through out the change process (Daft, 2015). When organizations have to manage the change then quick decision-making could be a key factor. It is also suggested that the organizations should take the support of various stakeholders while taking any decision. What I found interesting was that Honda and Canon are two companies that operate under the quick-decision making mode, in spite of the fact that both of these organizations are large organizations (Daft, 2015). According to Burn, and Stalker, (1961). An organismic form is appropriate to changing conditions, which give rise constantly to fresh problems and unforeseen requirements for action which cannot be broken down or distributed automatically arising from the functional roles defined with a hierarchic structure. It is observed that the lean organizational structure is the recommended form of organizational structure. Even the organismic structure is very good for change, here, this is more useful first, because the focusing on the customers needs; and second, because of the separation between the new and the traditional processes, structures of the organization which help to avoid resistance in the decisions. According to OReilly, and Tushman (2004) the organizations that have success in this, used to separate their new, exploratory units from their traditional, exploitative ones, allowing for different processes, structures, and cultures; at the same time, they maintain tight links acro ss units at the senior executive level. They separated the senior teams from the new innovation team. OReilly, and Tushman (2004) though that in order to have success, organization must constantly pursue incremental innovations, small improvements in their existing products and operations that let them operate more efficiently and deliver ever greater value to customers. I think this will be good for the organization development and sustainability, and I think to propose this to the senior managers and leaders. Vinekar, Slinkman, and Nerur (2006) argued that organizations that are seeking to manage simultaneously for change and innovation as well as stability face something of a paradox. I had not though of the change management approach in precisely this way before but it makes a lot of sense. On the one hand, mature organizations generally have a stable product line that they sell to a core group of consumers. These established products and services often produce significant income and provide great value for stockholders. On the other hand, companies need to be responsive to new opportunities and new markets. One method of change management that is useful in a changing organization is the opportunity to pilot new ideas in small markets to see how well innovation does on a smaller scale. Piloting is an aspect of making small changes to advance innovation within the ambidextrous structure (OReilly Tushman, 2004). Conclusion The above paper discusses the change management approach for organizations. It is important that organizations should consider the internal and the external factors before making any change. The lack of support from employees could be one of the biggest hindrances in the entire change management process. Therefore, it is important that change agents should focus on effective communication channels. The drivers of the reasons of the change should be communicated to all the employees at different levels. It is recommended that the organizations should stick the logical change management model like Kotter change management model or Lewin change management model. It is also recommended that the change management strategies should also depend on the companys life stage. In the entrepreneurial stage of a companys life cycle this approach might seem a little more difficult. I think that if the organizations founders are looking at not only what they have and desire, but also to the future and what changes will have to occur to move to the next stage, they are taking an ambidextrous approach. An organization that is in the elaboration stage must truly utilize this approach in order to survive. They have to take what works and keep it (exploit it), but also they need to find new ways (explore) of doing business to continue moving in the cycle. It is expected that the change management discussion and models would enable the organization to attain the path of continuous growth and development . References Anderson, D., Anderson, L. A. (2010). Beyond change management: How to achieve breakthrough results through conscious change leadership. John Wiley Sons. Appelbaum, S.H., Habashy, S., Malo, J.L. and Shafiq, H., 2012. Back to the future: revisiting Kotter's 1996 change model. Journal of Management Development, 31(8), pp.764-782. Burns, T., Stalker, G. M. 1961. The management of innovation. London, Tavistock Bucciarelli, L., 2015. A review of innovation and change management: Stage model and power influences. Universal Journal of Management, 3(1), pp.36-42. Daft, R. L. (2016).Organization Theory Design(12thed.). Boston, MA: Cengage Learning. Duerden, M. D., Lundberg, N., Shurma, D. (2016). Facilitating innovation in leisure service organizations.Journal of Park Recreation Administration,34(2), 49-61. Hornstein, H.A., 2015. The integration of project management and organizational change management is now a necessity.International Journal of Project Management,33(2), pp.291-298. Mishra, S., 2013, September. Relevance of Kotters Model for Change in Successfully Implementing Lean. InIFIP International Conference on Advances in Production Management Systems(pp. 540-547). Springer Berlin Heidelberg. OReilly, C. Tushman, M. (2004). The Ambidextrous Organization.Harvard Business Review. Retrieved from https://hbr.org/2004/04/the-ambidextrous-organization/ar/1 Shafiee, H., Razminia, E., Zeymaran, N. K. (2016). Investigating the relationship between organizational structure factors and personnel performance.International Journal of Management, Accounting Economics,3(2), 160-165. Worley, C.G. and Mohrman, S.A., 2014. Is change management obsolete?.Organizational Dynamics,43(3), pp.214-224. Vinekar, v., slinkman, c. W., nerur, s. (2006). Can agile and traditional systems development approaches coexist? An ambidextrous view. Information systems management, 23(3), 31-42.

The Effects Of Violence In Media On Society Today Essays

The Effects of Violence in Media on Society Today Refinance now homeowner even if you have bad credit. 185 loc The Effects of Violence in Media on Society Today Is societies violence the media's fault? This is the question that has been asked since before television was in every American's house. Of course there are the different types of media today ranging from newspapers, to on-line reports and stories. There have been arguments upon arguments about this issue, and over 3,000 studies conducted. Unfortunately there isn't one single result, there is only an array of supposed answers to this undying question. CBS president, Howard Stringer is pointing to a different scapegoat for society's violence. "I come from a country ... that puts a lot of American movies on and has more graphic violence within it's live drama on the BBC than anywhere else, and there is a lot less violence in the United Kingdom than there is here. There are 200 million guns in America, and that has a lot to do with violence." He feels it has to do with gun control, which others have suggested. But there are so many violent acts, that one can't focus on the guns, just like one can't focus on the media. David Phillips, one of the men we discuss later put it perfectly, "It's like watching rain fall on a pond and trying to figure out which drop causes which ripple." There have been many studies conducted on the effects of violence on children, and on the effects on society as a whole. There have been about 3,000 studies performed on this topic. Two of the most prolific studies were the UCLA Television Violence Monitoring Report, and the Mediascope, Inc. test sponsored by the National Cable Television Association. Of course there were many other studies done, but these made headlines because of their results. The UCLA study focused on all of the television media, and discovered some interesting facts from their study. Prime Time Series raised the least concern. Theatrical films raised more concern and had a lot more violence. The Saturday morning cartoons had mixed reviews. 23% of the cartoons raised concern, but that was only rating the most popular cartoons: Mighty Morphin Power Rangers, X-Men, etc. They termed the action in cartoons as "Sinister Combat Violence" which basically means the whole story line leads to violence. Mediascope, Inc. focused on the amount and context on cable, effectiveness of rating systems and parental advisories, and the success of anti-violent messages. They found that perpetrators go unpunished in 73% of all violent scenes, one out of four violent interactions involved the use of handguns, and premium cable channels present the highest percentage of violent programs (85%). There was more to their findings, but these were the more prevalent findings. University of Michigan psychologists Dr. Leonard Eron and Dr. Rowell Huesmann conducted a study, which continued for decades. This was conducted beginning in 1960. They took 800 eight-year-olds and found that children who watched many hours of violent television tended to be more aggressive in the playground and the classroom. They checked back with these kids 11 and 22 years later. They found the aggressive eight-year-olds grew up to become even more aggressive. They testified before congress in 1992 stating, "Television violence affects youngsters of all ages, of both genders, at all socioeconomic levels and all levels of intelligence. The effect is not limited to children who are already disposed to being aggressive and is not restricted to this country." David Phillips, a scientist at the University of California in San Diego conducted a study on prizefights on television. He thought of this topic, because he felt there wasn't enough research being conducted on the copycat violence. He found that after prize fights on television, there would be about a 10 percent increase in murders for a few days afterwards. He quoted, "It also seems to be the case that the kind of person killed just after the prizefight is similar to the person beaten in the prize fight." There are four major theories of television violence. The "arousal" theory, the "social learning" theory, the "disinhibition hypothesis," and the "catharsis hypothesis." These four hypothesis/theories are old and new conclusions to the question at hand. It is notable to see that some of these theories were stated as early as 1961. Most would have to disagree with these theories just because of the age of their births, but to most people's surprise they still hold in the 21st century. The arousal theory is basically self-explanatory. This was theorized by P.H. Tannenbaum in 1975. He said exposure

How Flight Control Systems Stabilize Rockets

How Flight Control Systems Stabilize Rockets Building an efficient rocket engine is only part of the problem. The rocket must also be stable in flight. A stable rocket is one that flies in a smooth, uniform direction. An unstable rocket flies along an erratic path, sometimes tumbling or changing direction. Unstable rockets are dangerous because its  not possible to predict where they’ll go – they may even turn upside down and suddenly head directly back to the launch pad. What Makes a Rocket Stable or Unstable? All matter has a point inside called the center of mass or â€Å"CM, regardless of its size, mass or shape. The center of mass is the exact spot where all the mass of that object is perfectly balanced. You can easily find the center of mass of an object - such as a ruler - by balancing it on your finger. If the material used to make the ruler is of uniform thickness and density, the center of mass should be at the halfway point between one end of the stick and the other. The CM would no longer be in the middle if a heavy nail was driven into one of its ends. The balance point would be nearer the end with the nail. CM is important in rocket flight because an unstable rocket tumbles around this point. In fact, any object in flight tends to tumble. If you throw a stick, it will tumble end over end. Throw a ball and it spins in flight. The act of spinning or tumbling stabilizes an object in flight. A Frisbee will go where you want it go to only if you throw it with a deliberate spin. Try throwing a Frisbee without spinning it and youll find that it flies in an erratic path and falls far short of its mark if you can even throw it at all.   Roll, Pitch and Yaw Spinning or tumbling takes place around one or more of three axes in flight: roll, pitch and yaw. The point where all three of these axes intersect is the center of mass. The pitch and yaw axes are the most important in rocket flight because any movement in either of these two directions can cause the rocket to go off course.  The roll axis is the least important because movement along this axis will not affect the flight path. In fact, a rolling motion will help stabilize the rocket the same way a properly passed football is stabilized by rolling or spiraling it in flight. Although a poorly passed football may still fly to its mark even if it tumbles rather than rolls, a rocket will not. The action-reaction energy of a football pass is completely expended by the thrower the moment the ball leaves his hand. With rockets, thrust from the engine is still produced while the rocket is in flight. Unstable motions about the pitch and yaw axes will cause the rocket to leave the planned course. A control system is needed to prevent or at least minimize unstable motions. The Center of Pressure Another important center that affects a rockets flight is its center of pressure or â€Å"CP.† The center of pressure exists only when air is flowing past the moving rocket. This flowing air, rubbing and pushing against the outer surface of the rocket, can cause it to begin moving around one of its three axes. Think of a weather vane, an arrow-like stick mounted on a rooftop and used for telling wind direction. The arrow is attached to a vertical rod that acts as a pivot point. The arrow is balanced so the center of mass is right at the pivot point. When the wind blows, the arrow turns and the head of the arrow points into the on-coming wind. The tail of the arrow points in the downwind direction. A weather vane arrow points into the wind because the tail of the arrow has a much larger surface area than the arrowhead. The flowing air imparts a greater force to the tail than the head so the tail is pushed away. There is a point on the arrow where the surface area is the same on one side as the other. This spot is called the center of pressure. The center of pressure is not in the same place as the center of mass. If it were, then neither end of the arrow would be favored by the wind. The arrow would not point. The center of pressure is between the center of mass and the tail end of the arrow. This means that the tail end has more surface area than the head end. The center of pressure in a rocket must be located toward the tail. The center of mass must be located toward the nose. If they are in the same place or very near each other, the rocket will be unstable in flight. It will try to rotate about the center of mass in the pitch and yaw axes, producing a dangerous situation. Control Systems Making a rocket stable requires some form of control system. Control systems  for rockets keep a rocket stable in flight and steer it. Small rockets usually require only a stabilizing control system. Large rockets, such as the ones that launch satellites into orbit, require a system that not only stabilizes the rocket but also enables it to change course while in flight. Controls on rockets can be either active or passive. Passive controls are fixed devices that keep rockets stabilized by their very presence on the rockets exterior. Active controls can be moved while the rocket is in flight to stabilize and steer the craft. Passive Controls The simplest of all passive controls is a stick. Chinese fire arrows  were simple rockets mounted on the ends of sticks that kept the center of pressure behind the center of mass. Fire arrows were notoriously inaccurate in spite of this. Air had to be flowing past the rocket before the center of pressure could take effect. While still on the ground and immobile, the arrow might lurch and fire the wrong way.   The accuracy of fire arrows was improved considerably years later by mounting them in a trough aimed in the proper direction. The trough guided the arrow until it was moving fast enough to become stable on its own. Another important improvement in rocketry came when sticks were replaced by clusters of lightweight fins mounted around the lower end near the nozzle. Fins could be made out of lightweight materials and be streamlined in shape. They gave rockets a dart-like appearance. The large surface area of the fins easily kept the center of pressure behind the center of mass. Some experimenters even bent the lower tips of the fins in a pinwheel fashion to promote rapid spinning in flight. With these spin fins, rockets become much more stable, but this design produced  more drag and limited the rockets range. Active Controls The weight of the rocket is a critical factor in performance and range. The original fire arrow stick added too much dead weight to the rocket and therefore limited its range considerably. With the beginning of modern rocketry in the 20th century, new ways were sought to improve rocket stability and at the same time reduce overall rocket weight.  The answer was the development of active controls. Active control systems included vanes, movable fins, canards, gimbaled nozzles, vernier rockets, fuel injection and attitude-control rockets.   Tilting fins and canards are quite similar to each other in appearance - the  only real difference is their location on the rocket. Canards are mounted on the front end while tilting fins are at the rear. In flight, the fins and canards tilt like rudders to deflect the air flow and cause the rocket to change course. Motion sensors on the rocket detect unplanned directional changes, and corrections can be made by slightly tilting the fins and canards. The advantage of these two devices is their size and weight. They are smaller and lighter and produce less drag than large fins. Other active control systems can eliminate fins and canards altogether. Course changes can be made in flight by tilting the angle at which the exhaust gas leaves the rocket’s engine. Several techniques can be used for changing exhaust direction.  Vanes are small finlike devices placed inside the exhaust of the rocket engine. Tilting the vanes deflects the exhaust, and by action-reaction the rocket responds by pointing the opposite way.   Another method for changing the exhaust direction is to gimbal the nozzle. A gimbaled nozzle is one that is able to sway while exhaust gases are passing through it. By tilting the engine nozzle in the proper direction, the rocket responds by changing course. Vernier rockets can also be used to change direction. These are small rockets mounted on the outside of the large engine. They fire when needed, producing the desired course change. In space, only spinning the rocket along the roll axis or using active controls involving the engine exhaust can stabilize the rocket or change its direction. Fins and canards have nothing to work upon without air. Science fiction movies showing rockets in space with wings and fins are long on fiction and short on science. The most common kinds of active controls used in space are attitude-control rockets. Small clusters of engines are mounted all around the vehicle. By firing the right combination of these small rockets, the vehicle can be turned in any direction. As soon as they are aimed properly, the main engines fire, sending the rocket off in the new direction.   The Mass of the Rocket The mass of a rocket is another important factor affecting its performance. It can make the difference between a successful flight and wallowing around on the launch pad. The rocket engine must produce a thrust that is greater than the total mass of the vehicle before the rocket can leave the ground. A rocket with a lot of unnecessary mass will not be as efficient as one that is trimmed to just the bare essentials. The total mass of the vehicle should be distributed following this general formula for an ideal rocket:   Ninety-one percent of the total mass  should be propellants.Three percent should be tanks, engines and fins.Payload can account for 6 percent. Payloads may be satellites, astronauts or spacecraft that will travel to other planets or moons. In determining the effectiveness of a rocket design, rocketeers speak in terms of mass fraction or â€Å"MF.† The mass of the rocket’s propellants divided by the total mass of the rocket gives mass fraction:  MF (Mass of Propellants)/(Total Mass) Ideally, the mass fraction of a rocket is 0.91. One might think that an MF of 1.0 is perfect, but then the entire rocket would be nothing more than a lump of propellants that would ignite into a fireball. The larger the MF number, the less payload the rocket can carry. The smaller the MF number, the less its range becomes. An MF number of 0.91 is a good balance between payload-carrying capability and range. The Space Shuttle has an MF of approximately 0.82. The MF varies between the different orbiters in the Space Shuttle fleet and with the different payload weights of each mission. Rockets that are large enough to carry spacecraft  into space have serious weight problems. A great deal of propellant is needed for them to reach space and find proper orbital velocities. Therefore, the tanks, engines and associated hardware become larger. Up to a point, bigger rockets fly farther than smaller rockets, but when they become too large their structures weigh them down too much. The mass fraction is reduced to an impossible number. A solution to this problem can be credited to 16th-century fireworks maker Johann Schmidlap. He attached small rockets to the top of big ones. When the large rocket was exhausted, the rocket casing was dropped behind and the remaining rocket fired. Much higher altitudes were achieved. These rockets used by Schmidlap were called step rockets. Today, this technique of building a rocket is called staging. Thanks to staging, it has become possible not only to reach outer space but the moon and other planets, too. The Space Shuttle follows the step rocket principle by dropping off its solid rocket boosters and external tank when they’re exhausted of propellants.

Human-wk2 Essay Example | Topics and Well Written Essays - 750 words

Human-wk2 - Essay Example According to Reeve (2009) will is the part of the mind that does the thinking, planning and intentions before action is taken. This means to me that we have to acknowledge the place that will has in what we do. I feel that I have a strong will to achieve. I also believe that drive is very important when you are going through any situation. For me, drive is important as I go through my education because sometimes it seems overwhelming. My drive comes from the fact that I want to see my children grow up and have a fulfilling life. Freuds Drive Theory suggests that we are all motivated to do things in order to satisfy our needs (Reeve, 2009). The mini-theory that I would apply to my goal is the goal-setting theory. According to this theory, different goals motivate us in different ways and you will approach goals differently depending on what you want. Freuds theory was not scientifically testable and he did not go far enough for factors that related to learning and experience. He also did not understand that drive was more than bodily needs. However, the goal setting theory expands it to let us know that there is more to life than only what we see. The mini-theory also helps with the will theory because it takes it beyond an understanding that Descartes saw and makes it a more tangible outcome. My friend decided that the person to be saved would be the one year old. The explanation that they gave was the fact that the five year old had already lived awhile and the one year old had not. In order to save only one in this tragedy, they would save the most vulnerable which to them was the one year old. In a sense, it would be very difficult for anyone to allow one child to die and let another live in a situation like this because the first answer is always, "I would save them both." Some people cannot even fathom not being able to save both children. In

Beach Sediments Essay Example | Topics and Well Written Essays - 2000 words

Beach Sediments - Essay Example Some beaches are built to great widths by sediments washed to the sea by episodic floods, gradually eroding until the next major flood replenishes the sand ("Beach Formation and Types of Beaches and Sand"). Beach sediments are delivered per year in million cubic yards through longshore transport. Different beaches have different colors and textures because of the various sediments that make them up. There are beaches made up of eroded shale cliffs, multicolored agates ground and polished by the surf, feldspar minerals, ground quartz, and even iron minerals. The various make up of the sediments determine the origin of these sand beaches which help researchers know more information about a particular coast. Mechanical sediments, also known as clastic sediments, came from the erosion of oceanic rocks formed during the earlier times. These sediments are carried by streams or waves to the place where they are deposited. Ocean sediments, especially in the form of turbidites, are usually carried over and deposited at the bottom of continental slopes ("The Columbia Encyclopedia" 42907). Chemical reactions in seawater form chemical sediments which results in the precipitation of small mineral crystals that settle to the floor of the sea and finally form a chemically pure layer of sediment somehow. Organic sediments are formed from plant or animal actions. ... There are also some traces of windblown volcanic and continental dusts found in organic sediments. Properties of Sediments Sediments have different properties which are being studied by researchers for different purposes such as coastal engineering. One property of sediments is its physical form. Sediments can be loose, fluid, hard or firm. Examples of loose sediments are sand and silt; mud is a form of fluid sediment. There are also sand forms that are firm and stiff as clay. Hard sediments are those rocks and coral pieces that can be found in some beaches. Sediments can also be classified in terms of their cohesiveness. Sediments can be cohesive, non-cohesive or mitigated. Sediments such as clay and firm sand are highly cohesive as each particle stick closely together. Mud and loose sands, as well as rocks and other loose particles, are non-cohesive. Mitigated sediments are mainly non-cohesive sediments with a little mix of clay. Non-cohesive sediment behavior in water is mainly controlled by mechanical forces. The hydrodynamics of a particle refer to its ability to remain still or become entrained if on the bed surface, or to remain in suspension or to cease movement if in motion ("Sedimentation Investigations of Rivers and Reservoirs" 7-1). The properties that crucially affect the non-cohesive particle's hydrodynamics are its size, shape and specific gravity. The behavior of cohesive sediments, on the other hand, is controlled by electrochemical forces and dependent on the particle size, sediment mineralogy, and water chemistry. Particle size is considered to be the most important property of non-cohesive sediments. The size of the particle can be defined by any of the four methods: a) Nominal diameter - with this

The Adventures of Huckleberry Finn Essay Example for Free

The Adventures of Huckleberry Finn Essay The Adventures of Huckleberry Finn has been labelled as a picaresque novel. A picaresque novel is an adventure story that involves an anti-hero or picaro who wanders around with no actual destination in mind. The picaresque novel has many key elements. It must contain an anti-hero who is usually described as an underling(subordinate) with no place in society, it is usually told in autobiographical form, and it is potentially endless, meaning that it has no tight plot, but could go on and on. The Adventures of Huckleberry Finn has moulded itself perfectly to all these essential elements of a picaresque novel. Huck Finn is undeniably the picaro, and the river is his method of travel, as well as the way in which he wanders around with no actual destination. This is due to the fact that the river is in control and not Huck. Furthermore, it is the picaresque style that has also aided in highlighting the escapades that Huck experiences through his travels as those crucial to the novel, but also crucial to such a character as Huckleberry Finn. Huck is the perfect example of a young boy with adventure on his mind, and thus the characterization of Huck as a picaro is done flawlessly. Additionally, as The Adventures of Huckleberry Finn contains all the vital aspects of a picaresque novel and picaro hero, it is these crucial traits that mark it as one of Mark Twains most successful novels, and one of the world’s most famous adventure stories. One of the most important aspects of the picaresque novel is the fact that it must contain a picaro, otherwise known as the anti-hero of the novel. Huck is obviously the picaro in The Adventures of Huckleberry Finn. A picaro is defined as, a low-born but clever individual who wanders into and out of various affairs of love, danger, and farcical intrigue. These involvements may take place at all social levels and typically present a humorous and wide-ranging satire of a given society (The Gale Group). Huck fits this definition perfectly. Huck isnt accepted by society and doesnt even want to be. He is most comfortable out on his own in the frontier. Furthermore, when the Widow Douglas takes him in and tries to provide him with a good life he doesnt want any part of it: â€Å"The Widow Douglas she took me for her son and allowed she would sivilize me; but it was rough living in the house all the time, considering how dismal regular and decent the widow was in all her ways, and so when I couldnt stand it no longer I lit out. I got into my old rags and my sugar-hogshead again, and was free and satisfied. † (194) Huck finds civilized life intolerable, but instead prefers to live the life of a free spirit, but he isnt able to do that when the Widow is trying to civilize him. The Widow wants to refine Hucks lifestyle to match hers, but Huck cant stand that type of life and resists it. Huck wants to keep his independence, and he believes that the frontier is the only place where he can do that. Therefore, Hucks unaccepted presence in society, and his unwillingness to fit in is one that proves his existence as a picaro in the picaresque novel. Another characteristic of the picaro is the fact that he is a wanderer, which means that he is the type of character who roams from place-to-place with no set destination in mind. Hucks wandering occurs within the form of his raft on the Mississippi river. The river is an important aspect of Hucks wandering because the river continuously changes course, and there is no way for Huck to direct the river and his raft. If Huck passes a place or location there is no way for him to turn the raft around, but instead he has to continue on down the river. An example of this is when Huck and Jim pass Cairo, which was the one specific destination they had in mind because its where Jim would have been free, It wouldnt do to take to the shore; we couldnt take the raft up the stream, of course. There warnt no way but to wait for dark and start back in the canoe and take the chances (314). In other words, the river basically has a life of its own, and therefore Huck and Jim have to abide by the river’s rules. Another important fact regarding the picaro as a wanderer is the notion that he will change as a result of his travels, the main character often grows intellectually and morally through his various encounters along the path of his journey (Bibliomania). Hucks character matures throughout the novel from that of a boy to one that can be seen as something closer to a man. Huck begins to have a conscience, which proves that he is beginning to mature because he begins to actually think about things, and care about them. Hucks maturation can be observed in the scene where he chooses to tell Mary Jane the truth about the two men posing as her uncles, I got to tell the truth, and you want to brace up, Miss Mary, because its a bad kind and going to be hard to take, but there aint no help for it (420). Hucks maturation is evident here because he cant stand to see Mary Jane and her sisters cheated of the money they deserve, and so happy because their uncles are back when in reality theyre only frauds. Hucks conscience continues to bother him until he tells Mary Jane the truth, and therefore it is apparent that Huck is growing as a result of his travels because his conscience begins to affect him, forcing him to show that he is a good and kind-hearted person. A picaro is often defined as someone who isnt very honest, or straightforward, but instead is something more of a liar. More often than not a picaro has been brought up by a dishonest and unloving family, and therefore has no traditional values. Hucks father was a drunkard, and treated Huck as if he owned him, instead of as a son. Furthermore, Hucks father never acted like a father figure to Huck at all, but instead was cruel and unreliable. Moreover, because of his upbringing Huck had no one to teach him any values, and thus he created his own value system, which was the opposite of the social norm. For example, Huck lied his way through his travels and adventures. His first major lie and the beginning of his adventure was staging his own murder, which enabled him to escape his father. In addition, whenever Huck and Jim met other people along their way some kind of lie always popped out of his mouth. To illustrate this point is the scene where Huck comes along two men in a boat, and Huck wants to surrender Jim, but a fib comes out instead, I wish you would, says I, because its pap thats there, and maybe youd help me tow the raft ashore where the light is. Hes sick-and so is mam and Mary Ann' (310). Huck doesnt even have to think about how to lie because it just happens without any real thought involved. Huck constantly changes his name in his lies. Hence, it is so natural for Huck to lie that it becomes difficult for him to keep track of the names he calls himself within his lies. His lies extend to the point of posing as a young girl to an old woman, but he mixes his names up and is caught in the lie: â€Å"Well, try to remember it, George. Dont forget and tell me its Elexander before you go, and then get out by saying its George Elexander when I catch you. And dont go about women in that old calico. You do a girl tolerable poor but you might fool men, maybe. † (262) Fortunately for Huck, the old woman is a kind-hearted one and lets him go on his way without any real questions. However, one of Hucks major lies occurs during his time with the Duke and the King. They pull a stunt where they charge people to watch them do a revival of a play, despite the fact that they barely know the play or are by no means actors. Consequently, they barely escape from the town on the third night with the money that they had  cheated the townspeople of. Thus, there were many instances where Huck lied and cheated his way through his various encounters and experiences, which ties him in perfectly with the typical picaro stereo-type. A picaresque novel is generally told in autobiographical form. Huck is the narrator within The Adventures of Huckleberry Finn, and thus is speaking from the first person point-of-view. This is largely associated with the fact that although Huck tells terrible lies and does some terrible things, it is impossible for the readers not to like Huck. Huck tells the story from his own point-of-view, which enables the readers to see things through Hucks eyes. Huck will explain why hes doing something, and because the readers get Hucks explanation and thoughts on it, it is easy to understand and accept it. Hence, it is easy for the readers to side with Huck. Furthermore, because Hucks thoughts are known the readers are able to see and accept that more often than not Huck actually has a good reason for the things he does. One important notion is the fact that Huck does have a good heart, and this is because Hucks adventure is largely due to keeping Jim safe and free. The readers are able to see Hucks thoughts on Jim and how he really does care about him and his freedom, and this makes Huck a good person with a large heart, despite the way hes acted at certain times. In addition to Huck being the narrator is the fact that the story is not only told through Hucks eyes, but also through his own language. Its obvious that Huck isnt the most educated person, but because the novel is told through Hucks own language it makes the novel all the more realistic to the readers. It is easier to see the story through Huck when the slang he uses is also incorporated into the novel. The fact that Hucks slang became a part of the story as well only served to further root Huck as a believable and more realistic character. Furthermore, Hucks accent became a part of the dialogue in order to define him as a unique character within the novel, one on which the novel was centred on. Hucks accent marks him as a true adventurer, and as someone who truly does prefer the frontier to civilization. For example, if Twain had invented Huck without an accent then his believability as an adventurer wouldnt have seemed quite so real. If Huck had traveled down the river void of his accent or slang then he would not have seemed the true loner and adventurer that Twain made him out to be, which is because he would have spoken in the same educated manner that any well-brought up boy would have. Thus, Hucks slang is as much a part of his lifestyle as it is him. Consequently, it is these combined facts of Hucks first-person narration, the readers ability to see everything hes thinking, and the slang that is incorporated into his dialogue that truly marks Huckleberry Finn as a adventurer, but more importantly as an autobiographical character in a picaresque novel. A story that has been defined as picaresque, such as The Adventures ofHuckleberry Finn can also be said to be potentially endless. A picaresque is often described as an adventure story, and thus if a novel is an adventure story then there really is no reason for the adventures to end. A picaresque is said to be potentially endless because it has no tight plot that has to end at a given time. Instead, the plot can change and continue on into infinity. Another literary term for a picaresque being potentially endless is called beads-on-a-string. It is like a yarn, and there is no exact moment when the story starts to wind down and close, but instead there is always an opportunity to keep the story going. The Adventures of Huckleberry Finn is the perfect example of this. The entire story is centred on Huck and Jims adventures down the river. Huck is running away from his father, and Jim is running away from the possibility of being sold down the river because hes black, and therefore a slave. Huck and Jims adventures do eventually come to an end, but only because Mark Twain decides to end it, not because it has to end. There is no tight plot structure, such as a need for a climax and falling action because these could easily be taken out allowing Huck to continue telling his story, and the reader would never be any the wiser. Furthermore, there is no exact spot in the story where the reader thinks that the story should begin to wind down, and this is because it is a young boys adventure story. Hucks characterization only works because of the age his character represents. Huck represents eternal boyhood, and thus his adventures can also be seen as eternal. Therefore, The Adventures of Huckleberry Finn is a story that can be potentially endless due to the fact that it is a young boy telling the story who experiences a life of adventures, and there is no reason why those adventures should have to end at any specific time. A picaresque story often involves a picaro that has some kind of sidekick along with him. In the case of Huckleberry Finn, Jim is his sidekick. The sidekick is someone who is a part of the adventure, but isnt seen as the main character, and thus more often than not the readers dont know the sidekicks views or thoughts, or what is known is very limited. Jim is Hucks sidekick, and although Hucks own adventure actually began because he was running away from his father, Jim is the reason that the adventure took the path it did. Jim didnt want to be sold to a slave buyer so instead of taking the chance of being sold he ran away, which is how he came to be Hucks sidekick. They both ran away from different things, and accidentally, but fortunately found each other, Pretty soon he gapped and stretched himself and hove off the blanket-and it was Miss Watsons Jim! I bet I was glad to see him (239). Huck wanted to keep Jim safe and so they decided to go to Cairo where Jim would be free from slavery, en I hear ole missus tell de widder she gwyne to sell me down to Orleans, but she didn want to, but she could git eight hundd dollars for me, en it uz sick a big stack o money she couldn resis' (242). Jim became Hucks sidekick early on in the adventure, and thus the real adventure only began once Jim had become a part of it. However, although it is Hucks adventure, and Jim is Hucks sidekick, the actual adventure itself is about keeping Jim safe and free. Furthermore, both Huck and Jim are running away because they want freedom. Huck wants to be free from his father, and Jim wants to be free from slavery, but by the end of the novel the irony is that Hucks father is dead, and the Widow has set Jim free within her will. Thus, it is Jim that further proves the sidekick mentality within a picaresque novel, and within The Adventures of Huckleberry Finn. The Adventures of Huckleberry Finn contains all the elements that any picaresque novel should. Huck Finn is the picaro and alongside him is his sidekick Jim. The adventures that these two encounter along their journey is pure proof of what elements a picaresque novel should include, from lying and cheating to wanderers along a river, to the changes that occur as a result of these adventures. Huck has all the characteristics that a typical picaro or anti-hero should have. Hes dishonest, prefers the frontier to civilization, and hes the narrator of the novel making it in autobiographical form. Therefore, all the aspects within TheAdventures of Huckleberry Finn cement it together to further root it as a picaresque novel with a unique and yet solid picaro as the main character.