The Physics of Flight Essay -- Airplanes Aerodynamics Science Essays

The Physics of Flight The trials and tribulations of flight have had their ups and downs over the course of history. From the many who failed to the few that conquered; the thought of flight has always astonished us all. The Wright brothers were the first to sustain flight and therefore are credited with the invention of the airplane. John Allen who wrote Aerodynamics: The Science of Air in Motion says, â€Å"The Wright Brothers were the supreme example of their time of men gifted with practical skill, theoretical knowledge and insight† (6). As we all know, the airplane has had thousands of designs since then, but for the most part the physics of flight has remained the same. As you can see, the failures that occurred while trying to fly only prove that flight is truly remarkable. Flight uses four forces: lift, weight, thrust, and drag. In a nutshell; so to speak, an airplane must create enough lift to support its own weight. Secondly, the airplane must produce thrust to propel itself. Finally, the aircraft must overcome the drag or the force of resistance on the airplane that is moving through the air. All four of these forces are vital and necessary for an aircraft to move, takeoff, fly, and land. Wings create lift for the upward force of an airplane. A great example of how this happens is sticking your hand out of a car window driving down the freeway. The force on your flat palm causes a force that can lift your hand up or down by changing the angles of your wrist. Another way to explain this is by the concept of the Bernoulli Effect. According to Kirkpatrick and Wheeler; authors of Physics: A World View, the concept of lift is due to the Bernoulli Effect. They state: â€Å"The upper surfaces of airplane wings are curved ... ...e in any one of these forces leads to a change in the others† (139). A pilot can use many different controls and means of propulsion to change and manipulate the balance of these forces. By doing this the pilot is able to change their speed and change their direction. The Physics of Flight are truly unbelievable occurrences that create amazing effects. Without the concept of flight we would live in a totally different world. Works Cited Allen, John. Aerodynamics: The Science of Air in Motion. London: Granada Publishing Limited, 1982. Kirkpatrick, Larry, and Gerald F. Wheeler. Physics: A World View. 4th ed. Orlando: Harcourt College Publishers, 2001. Shevell, Richard. Fundamentals of Flight. New Jersey: Prentice Hall, 1989. â€Å"How an Airplane Flies,† Microsoft  ® Encarta ® Online Encyclopedia 2003 http://encarta.msn.com  © 1997-2003 Microsoft Corporation.

The Paris Basin: Tertiary Activities

Paris Basin: – Tertiary Activities Account for the development of tertiary activities in one non-Irish region of your choice. Tourism * Capital city – naturally draws tourists ranging from sight-seers to historical enthusiasts. * Home to monuments and buildings and areas of interest. Eiffel tower – daily tours to the top with a restaurant at the top – iconic monument designed by Gustave Eiffel overlooks the city + Rvr Seine on which are numerous daily cruises * Sacre Coeur Cathedral – on top of Montmartre hill – opens every day to public – originally – relatively inaccessible as it is atop the highest point in city – glass cable car link was built in 1990s – further increased amount of visitors to this attraction. * Nearby – Artist’s quarter + the Salvador Dali museum. Other attractions drawing millions of visitors each year – Louvre – holds famous pieces (Mona Lisa by Leonardo Da Vinci) * S. lies the palace of Versailles * E. (in Marne de la Valley) is the world famous Euro Disney. * Arc De Triomphe, Champs d’Elysees and the Notre Dame Cathedral. * 2008 – These sites drew in over 25 million visitors. * Over 60% of visitors – from outside of France – generate over â‚ ¬20 billion each year. * Tourism industry – 20% of Frances total GNP – indicates importance of this business is to economy. Result of tourism – hotels, restaurants and other spin-off industries have developed due to the demand for additional services. * Towns Reims and Epernay – grown in size due to the viticulture industry – draws in wine tasters, home to the famous Champagne houses. Transport * Transport industry – highlights development of tertiary activities * Agriculture, industry and tourism continue to grow – need for highly developed transport network – in high demand. Development of Euro Disney in east broug ht the RER train line – meet needs of the ms of visitors (Part of the SNCF train network in France) * Home to the Metro system – seven routes linking all areas of capital and further * Three international airports: Charles De Gaulle, Orly and Beavais. * The port of Le Harve – mouth of the river Seine (further example of level of development of the transport network in this core region) * France’s second busiest port (after Marseilles) and is the entry + exit point of raw materials and finished products of the region.

Gst in Malaysia

Goods and Services Tax (GST) GST is a consumption tax based on the value-added concept. GST is imposed on goods and services at every production and distribution stage in the supply chain including importation of goods and services. The GST implementation is part of the government’s tax reform program to enhance the capability, effectiveness and transparency of tax administration and management. The Government has not determined the implementation date of GST in Malaysia. Presently, the Government is actively involved in providing awareness and knowledge on the concept and rules regarding GST implementation.If GST is implemented, the Government will provide ample time between 18 to 24 months for the businesses and industries to prepare themselves for the implementation of GST. At the moment, the government has not fixed the GST rate to be imposed in Malaysia. Nevertheless, the social and pricing impact studies conducted by the Ministry of Finance indicated that the suitable GS T rate is in the range of 4%. GST is a more comprehensive, effective, transparent, and business friendly tax system. GST can overcome the various weaknesses inherent in the present consumption tax system.The inherent weaknesses under the present tax system are the cascading tax, double tax and pyramiding tax, tax erosion and leakages through transfer pricing and other means. Besides that, GST is expected to increase tax compliance and is easier to administer in view of its self policing method. Besides that, the businesses are required only to submit simplified tax returns based on prescribed formats. All records and documents relating to the relevant transaction are required to be kept in the business premises for audit by the GST auditor.How does GST work? GST is charged and collected on all taxable goods and services produced in the country including imports. Only businesses registered under GST can charge and collect GST. GST collected on output must be remitted to the governmen t. However, businesses are allowed to claim the input tax credit through the following mechanism and method:- i. GST collected on output (output tax) is deducted against the GST paid on input (input tax). ii. If there is excess, the amount shall be remitted to the government within the stipulated period. ii. If there is deficit, businesses can claim for refund from the government. GST can only be collected by persons who are registered under GST and the tax shall be remitted to the government within the stipulated period. In principle, the GST is not a cost to business as the GST paid on the business inputs can be claimed as tax credit. As such, it is estimated that the cost of doing business will decrease by an amount of RM4. 3 billion inclusive of a saving of RM1. 4 billion by exporters on their business inputs.The reduction in the business costs will make the local products and services more competitive in the domestic and international markets. In addition, the GST is expected t o improve tax compliance and is easier to administer due to its self-policing feature. With GST, bureaucracy in the government’s delivery system will be significantly reduced. Based on a GST rate of 4%, it is expected that there will be a price reduction between 0. 08% to 2. 71% in respect of eight components of goods and services.With this price reduction, the rakyat will benefit from the cheaper goods and services such as clothing and footwear, basic food, communication, furnishings, hardware and maintenance, transport, housing, water, electricity, gas and fuel. The tax burden borne by the rakyat and consumers is expected to be lower compared with that under the present tax system. This is due to the reason that various basic needs such as rice, sugar, flour, cooking oil, vegetables, fish, meat, eggs, and essential services such as public transport, private education and health, residential properties and agricultural land are not subject to GST.What are the measures undert aken by the government to ensure a smooth GST implementation? The government will give the businesses ample time to be ready for GST implementation. GST awareness and education programmes will be conducted on an on-going basis until the GST is implemented. In its effort to disseminate GST information to the general public, the government has set up a Customs call centre which will be operational at Kelana Jaya, Selangor.In addition, various industry guides will be issued as guidance to the industries relating to the GST treatment and procedures pertaining to specific industries. The Customs Department will conduct visits to business premises to provide assistance and advisory services to ensure that businesses fully understand the GST rules and procedure. The government will also ensure that the GST computerization system is fully operational before the GST implementation. The test run for the pilot project relating to the early registration process will be conducted six months befo re the GST implementation date.

Compassion in The Witch of Blackbird Pond Essay

Compassion is important in every walk of life. The definition of compassion is : a virtue of empathy for the suffering of others and a desire to alleviate that suffering. Compassion is important because it makes up who you are and is a strong part of human love. Without compassion, no human could ever get close to each other or function together as a society. Without compassion, people would not be able work together because they would not care about anyone else’s pain. There would be no working together towards a common goal, that is one of the key pillars of society. Compassion is reason we have doctors and nurses. Compassion is reason that when we see someone hurt, on the ground, we help them up. In the novel, The Witch of Blackbird Pond, Kit and Nat show compassion for Hannah Tupper when her house burns down. She is their friend and they are sympathetic for her and do anything to help her. They even go into the building to retrieve her cats. They are feeling compassion for her and will help to alleviate her suffering, risking the possible legal repercussions of aiding a witch. Another instance in the novel in which the characters show compassion is when Kit teaches Prudence to read and when she defends Prudence from her mother by lying at the trial. The first time was compassion because kit saw prudence had low self worth because her mother has lead her to believe that she is stupid and never will be able to read. Kit sees her suffering and decides to alleviate her suffering, risking Goodwife Cruff’s wrath by teaching her to read and write. Later in the book, once kit is accused of practicing witch craft and the townspeople present the evidence of the hornbook with Prudence’s name written in it repeatedly, Kit lies for Prudence’s sake. She doesn’t want Prudence to get beaten by her mother. She risks possible death in compassion for Prudence’s situation. Finally, prudence shows compassion to Kit. Against all odds, though she has been educated to not show compassion by watching her mother, she shows everyone that she can write. She risks her mother’s abuse to save Kit, a girl she has recently met, but who has taught her a very important value: compassion.

Fables and Fairytales Essay Example | Topics and Well Written Essays - 500 words

Fables and Fairytales - Essay Example So the third fish decided to stay. The eldest of the fish decided to leave that pond with his whole family that same evening. Early in the morning the second fish saw the fishermen from a distance and decided to leave with his family. Even with the evident threat of danger, the third fish refused to leave that pond. The fishermen came and caught all the fish in that pond including the third fish and they were killed. This story shows the ignorance that the third fish shows even despite the fact that the first fish warned them about the fishermen. This three fish resemble the character of us human beings. There are those people who hear of danger and quickly react to it by looking for a safe place or get out of the area that is believed to be dangerous. The second set of people are those that have to see danger in order for the to get out of the area that is believed to be dangerous. The third set of people are those that hear and see of danger but do not want to get out of the area that is dangerous. The third set of people usually end up being killed or get hurt in the process. Therefore, it is important that we listen to the advice that older people offer since they have a lot of experience and are able to protect us. It is very important to listen to advice as this will help us a great deal. The third fish was ignorant of the advice that the first fish gave it and ended up being killed. The f irst and the second fish took precaution and continued to live. So the moral of the story is to follow the advice offers by other people and not to be

Argumentative Research Paper Women in Combat Essay

Argumentative Research Paper Women in Combat - Essay Example For instance, as this essay will demonstrate in the following sections, women suffer more physical injuries than men, they often suffer more serious psychological ailments, they resort to substance abuse as a means for coping with the physical and psychological strains, and their presence contributes to a number of novel problems in the military. The point is not that women are incapable of serving in the military. The point most certainly is not that women cannot be good leaders and good soldiers. The thesis of this essay is that women should not be placed in direct combat roles because (1) their presence may very well result in more serious physical and psychological costs than those experienced by male soldiers, and (2) that their presence causes the military to become preoccupied with peripheral issues such as sexual harassment, dating, and disharmony to the exclusion of military readiness and missions. As the data will demonstrate, this ought to be viewed and treated as much more than a political or a social issue. The military occupies a special place within the larger political and social framework, its combat functions result in serious injuries and mental strains, and women ought to consider the medical findings and the military realities before demanding increased combat roles. This research paper will define what is meant by combat and, as illustrated in Iraq with messy urban warfare, how traditional notions of combat versus non-combat personnel have become increasingly difficult to define. This blurring of the traditional distinction is of particular relevance in this case because women serving in traditionally non-combat roles have, in fact, been directly exposed to combat nonetheless. After examining the meaning of combat, this essay will analyze a number of recent studies which demonstrate that women suffer greater burdens than their male counterparts. Some of these burd ens are biologically-rooted and cannot be remedied by simple shifts in policy.In the final analysis, there is no good scientific or military argument for including women in combat roles. The humane result would be a wholesale exclusion of women from combat. Only a sadist would use women as martyrs to make a point of gender equality, which has been and can continue to be made in less damaging situations and contexts. Combat Versus Non-Combat Combat was traditionally defined as taking place in a specific place with specific people (Skaine, 26); however, Skaine also goes on to note that combat today is more spread out, warring parties often hide and fight among civilians, and that defining a woman as serving in a combat or non-combat role is somewhat disingenuous. This is because, even though most women are theoretically shielded from combat by legislation and by non-combat designations and deployments, the combat reaches and affects women. Indeed, it is an open secret that women operate in combat roles even though they are technically barred or prohibited. Recent events in Iraq illustrate this blurring of the role between combatants and non-combatants all too starkly; as reported by CNN, "The Pentagon's policy banning women in combat is being tested in Iraq, where the lack of a defined front line and insurgents' guerrilla

WEP 300 Essay Example | Topics and Well Written Essays - 500 words

WEP 300 - Essay Example According to several experiments in laboratories, classrooms, organizational workplaces and other environments, rewards essentially weaken the very basis of interventions they are meant to support (Pink 1). The findings show that the inability of any particular incentive program can be attributed more to the insufficiency of the emotional assumptions upon which such plans are based than the seemingly botched approach taken to implement the incentive. As such, Pink (6) noted that monetary incentives blunt individual creativity. The researcher based his reasoning on economics and psychology studies. He cited the â€Å"Candle Problem† experiment by Karl Duncker, which was invented in 1945 to examine â€Å"functional fixedness† in human reasoning. The outcomes support the inefficiency of incentive-based human resource management. Duncker proved that it is not easy for an adult to solve issues facing him or her by summoning an out-of-the-box mentality. This is because humans are not bound to â€Å"iterate(ing) something new† (Pink 8). This means can be construed the general human reluctance to experiment with new objects in an innovative manner. Similarly, Sam Glucksberg repeated the experiment in1962, but focused on the impact of monetary inducements on creativity. He established that financial incentives may actually worsen the problem of fixedness in employee thinking and functions. As such, Pink noted that a Candle Problem experiment conducted on two sets of sample employees working as a team to find a solution established that there are modest impacts of incentives on creativity between the group that was subject to incentives and the other that was not (7). However, the outcomes showed no undesirable consequence of incentives. Therefore, it can be argued that the average performance of employees is marginally better when creativity is based on incentives, but the variation is not