Evolution of aviation during World War II Essay Example for Free

Evolution of aviation during World War II Essay The year between the two great Wars saw the continuation and expansion of aviation technology. By now, European nations knew the uses of airplanes in war times. Even though disarmament was commanded by the treaty of Versailles, many nations (mostly Europeans) continued to advance their aircraft technology in a lesser or higher degree (Pavelic, 2007, p. 2). Unlike the First World War, there was greater interest in research and advance studies on material science, aerodynamics, engine thermodynamics and fuel technology that favored the extensive use of monoplane and the use of new high powered weapons in fighter planes like cannons and rockets (Mathews, 2001, p. 9). Even though Germany was denied to build an air force by the Treaty of Versailles, nevertheless, they continued to conduct covert aeronautical research for secret rearmament plans during the interwar years. Secretly they also bought aircrafts from other countries. It can be said therefore that in spite of being banned to build military aircrafts, Germany was up-to-date in aircraft development. In fact by the time the Pact of Paris (1926) relaxed their restriction on German aviation development, Germany built some of the most advanced aircraft in the world (Pavelic, 2007, p. 2). Increasing the speed and rising at high altitudes had remained the preoccupation of aircraft development in the interwar and Second World War. Altitude was very important to the military because of their mission to intercept and attack invading bombers (Matthews, 2001, p. 9). For conventional type of airplanes, development was geared toward increasing speed and altitude through engine development, particularly the piston engine and turbo jet engine. Britain had design one of the best liquid-cooled aircraft engines, the Rolls Royce Merlin, used in World War II for two heavy bombers, the Supermarine Spitfire and Hawker Hurricanes (Pavelec, 2007, p. 7). However, the alternative to piston engine, the turbojet engine (engine without propeller) can be considered the greatest achievement in the history of aviation in terms of speed development and solved the problem of jet propulsion during the interwar and the Second World War. It was Germany who led in this development in the person of Dr. Hans von Ohain who completed a flight-worthy turbojet engine for aircraft, commencing the jet age on August 27, 1939. Throughout the war, the race for jet speed was dominated by the Germans and they were the ones who initiated to produce jet aircraft for combat operations. Other countries soon followed suit (although they have their own jet inventions at the same time that the Germans developed it but with less support) in producing turbojet engine. In Britain, it was Frank Whittle who developed a turbojet engine that powered the Gloster Pioneer on May 15, 1941 and the only Allied combat jet aircraft ,Meteor. By the end of the war, airplanes of the Second World War travel in faster speeds than their predecessors, with a record of 606 miles per hour by the British Gloster Meteor IV powered by a turbojet engine (Matthews, 2001, p. 6). Radar was also an innovation in aviation during the Second World War. When the First World War had ended, nations had realized that airplanes, especially those carrying bombs, will pose a threat to their safety. Therefore, radar systems were developed and in the Second World War, they were installed in airplanes to detect enemy aircrafts or ships, or to help in navigation or to accurately locate bombing targets ( Perry, 1988, p. 703). IV. Conclusion It is very obvious that due to the pressing need of the First and Second World War, the history of aviation took a rapid turn. It is at this period that aircrafts changed its role from transport and reconnaissance vehicle to destructive weapons of war when fighter and bomber planes were developed. Airplanes also undergone rapid change in physical appearance from biplanes to monoplanes and from using fabric to full-metal body. During the interwar periods, as aircrafts were already seen as an integral part in war victory, in-depth researches in aerodynamics and thermodynamics and other engineering technology related to flying was undertaken well into the Second World War. Moreover, the quest for greater speed and high altitudes was improved in the Second World War upon the invention of turbo jet engines as an alternative to the piston engines of the First World War.

A Foolish American Dream in Arthur Millers Death of a Salesman :: Death of a Salesman

A Foolish American Dream in Arthur Miller's Death of a Salesman   Ã‚  Ã‚  Ã‚  Ã‚   Willy Loman is responsible for his own downfall.   Willy finds his own hero and tries to become the hero in his own existence.   Willy tries to become a very successful businessman, at the start of his career he thinks that no one can tell him what to.   Willy is not good with people, he is good with his hands, he is not a good salesman and he chooses the wrong career.   Willy often makes up stories or changes the stories he knows because he cannot face the truth of his life that he has not accomplished as much as he has planned.   Willy's downfall is his own doing which is brought about by his unrealistic dreams, his pride, his career choice and his failure to manage life's problems.   Ã‚  Ã‚  Ã‚  Ã‚   Willy, at a young age, noticed an old salesman who worked at an age of 80 and made a lot of money. The old salesman took orders from no one, he made his own orders and everyone did as the old man said.   When the old salesman, Dave Singleman dies, all the buyers came to his funeral. All the people Dave ever knew came.   There were thousands mourning his death.   From that point, Willy Loman found an awesome dream which he followed the rest of his life.   Willy became a salesman.   Willy is the most unqualified salesman ever!   He never sold a thing.   Willy stops seeing the truth at one point of his life and he relies on his own lies to numb his pain. The pain of knowing he cannot and wont be able to become Dave Singleman.   He is Willy Loman, who is good at fixing the house.   He is not cut out for travelling from city to city and selling goods to people he has never met before.   Willy dramatically dies living out his dream, the dream that never suited Willy Loman.   Ã‚  Ã‚  Ã‚  Ã‚   Willy does not allow people to tell him what to do.   He believes that he cannot be bossed around and that he is too important to fall under anyone's authority but his own.   Willy teaches Biff and Happy not to take orders from anyone.   He thinks this will make Biff, Happy and himself

Advantages and Disadvantages of Having a Mobile Phone

This is a quite hot topic,espeaially for students in campus! net has collected this sample coposition for you! 1. 2. 3. Nowadays,with the rapid development of IT and information industry, cell phones play a dominant role in towns people's life. But, like everything else, they have both favorable and mffavorahle aspects. First, it's useful. As a wireless mobile telephone, it's easy and handy to early to wherever one goes and call the callee however far away he is. Therefore, it greatly facilitates people's life. Second, it's convenient. Whenever one meets trouble or something urgent, one can nmke a call immediately. Most important of all, it's a very helpful companion. With a multirfunction cell phone in hand, one can easily get on the Net, browsing the useful information, conducting e-commerce and doing whatever one can do via Internet. However, just as everything has two sides, the cell phone also has many disadvantages. To begin with, it's expensive to buy and costly to pay the hills, esp. that of global service. To make matters worse, it's also easy to lose and costly to get it repaired. Worst of all,it's not as clear as a family telephone and sometimes the number dialed is often not available. Last but not least, it's alleged the microwaves in it might do harm to people's health. In my opinion,with its expenses greatly reduced after China's entry into the WTO, it will face an ever brighter future in its development. Someday most of them will be developed into new Intemet-enabled mobile phones, which will be as useful as pocket computers. And I believe its advantages will not only offset its disadvantages, but also far outweigh them.

Social Media Profiles As An Invasion Of Privacy - 999 Words

One of the most highly debated issues in the business world is the use of social media profiles as a determining factor in the hiring process. Some people feel that using someone’s social media profile is an invasion of privacy because it uses something from their personal life to determine their professional success. As long as the company follows some basic guidelines I believe there is nothing wrong with them looking into the profiles of their potential employees. It is important to point out that while looking at many of the different ethical ideologies, this practice does not violate the ethical conducts. Teleologists would agree that looking into someones profile will ensure that you are hiring someone who will conduct themselves in a proper manner. Therefore, the means of looking into their personal lives justifies the ends in which you hire a professional with good character. Deontologists would likely agree that as long as the company does not try to find loop holes t o see into protected accounts that they are respecting the rights of the individual and therefore are not being unethical. I believe that it is reasonable for a company to use social media profiles as a basis for hiring because everything posted on the internet is public domain, it allows them to get an understanding of who the potential client is, and you want to ensure that you are hiring someone who fits in to your company. I believe that it is reasonable to use a potential employee’s social mediaShow MoreRelatedSocial Media s Eroding Our Privacy Essay1312 Words   |  6 PagesSeptember 24, 2016 Social Media and U.S Surveillances Eroding our Privacy The emerge of our privacy invasion has mount with government surveillance by the U.S national security system (Baumer, Roth, Epstein, 2014). 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