The History of the Submarine Essay Example | Topics and Well Written Essays - 1250 words

The History of the Submarine - Essay Example According to Farmhand, the idea of underwater navigation is quite old and dates back even before 1624. He mentions that an Englishman William Bourne in 1578 suggested in his book the idea and value of a boat that sails below the surface of water and carries a hollow mast for ventilator (Farmhand 2010). Captain Braxton Harris who is the author of the book The Navy Times Book of submarines: A Political, Social and Military History mentions in this book that Cornelius Drebbel was hired by James I and he, supposedly, built the first submarine. Yet there seem to be no credible image of his boat or accounts of its usage. In the year 1654, "Rotterdam Boat" was designed by D.E. Son who was a Frenchman; it was 72 foot long and was built by the Southern Netherlands to attack an enemy from the English Navy (Brayton). In between 1620 and 1624, many improved concept of submarines were introduced. Although initially the first underwater vehicle was meant for exploring underwater, but soon it encouraged inventors to use this tool to strengthen and broaden the military operations. In 1648, this new startegic concept was executed by Bishop John Wilkins from England in Mathematical Magic. The first ever model to be used for military operations was developed in 1775, it was called Turtle. It had screws for propulsion and was used during American revolutionary war, it failed to sink the warship of Britisher, HMS Eagle. Then in 1804 in France, 'Nautilus' was designed by an American Rober Fulton. In the following years, many underwater ships were developed by many inventors and used in war operations. Successful models to be used from both side were executed in the American civil war. All these ships were manually opearated and, hence, had to go through many failures and as a result, many sank in their very first trials. The very first machine to feature under mechanical operation is Plongeur, devised in the year 1863. Ictieneo II is the first independent and combustion powered submarine (Brayton). Fig. 1.2 – â€Å"Plongeur† (Captain Brayton). Fig.1.3- In 1885 an American Josiah H. Tuck developed "Peacemaker" (Brayton). In the late 19th century, many experimented designs were introduced and in the early 20th century, its true usage and improvement in design, structure and execution was effectively been researched upon by ample involvement of the government (Farmhand 2010). Usage and Technological Advancement The 20th centruy was a pivotal period for the development and usage of submarines. Every nation was interested in including its own submarine in their effective military execution. New technological advancement ensured improved machinery and effective performances of these underwater ships. It was used widely by many nations for the coming World War I. The first subm arines which were mechanically

Human resource management Essay Example | Topics and Well Written Essays - 500 words - 6

Human resource management - Essay Example 2011, 1). Empirical research has supported the theory by proving that the most impressive performance result when an organization sets clear and specific goals. Effective goals should also be measurable, accurate, and time-bound (Kessler, I. 2012, 66). Clear goals ensure that employees attain a conspicuous sense of direction in their duties. Goals motivate employees to perform at stipulated levels (Perkins,S. and White, G. 2011, 109). It is essential for both the organization and the employees to have distinct strategies about performance targets. This is because employees should work with goals that directly affect their departments. In this view, an organization pays an employee according to how one meets given goals. An employee that satisfactorily meets set goals possess a higher bargaining power in demanding for more pay. In turn, an organization faces the task of synchronizing incentives with the nature of number of goals that an employee is supposed to meet (Heery, E. 1996, 55 ). On the other hand, the expectancy theory holds that an individual acts in a certain way because one chooses a given behavior out of a set of behaviors (Marsden, D. 2004, 17). Such a behavior results into the desired performance. This theory evaluates performance as an outcome of an employee’s ability and motivation to choose one type of behavior over the other (Pendleton, A. 2001, 88). Three factors play a crucial role in shaping this form of motivational behavior. To begin with, an employee makes a psychological link between effort and behaviors (Thompson, M. 2009, 131). In addition, the concept of instrumentality links behavior and outcome. Outcome, in this sense, is perceived as pay. Lastly, valence relates to how a person attaches value to an expected incentive (Marchington, M., & Wilkinson, A. 2008, 124). In the share and ownership scheme theory, the

Superior Manufacturing Company Case Study Example | Topics and Well Written Essays - 500 words

Superior Manufacturing Company - Case Study Example This research will begin with the statement that considering the income statement and results of analysis of the profit and loss account by each item and factory, Waters’ decision to decision to keep product 103 was not rational, at least in the short run. This is because the company was operating at a loss and a decision to streamline causes of the loss was necessary, considering the tight competition in the industry. Analysis of products’ costs and revenues identified product 103 as the major cause of the company’s realized loss and its elimination would help the company in reducing its loses. In addition, and even though the company is less differentiated than its competitors are, focusing on stopping production of product 103, would promote the company’s specialization and this, together with focusing the resources on the remaining two products would empower the company towards competitive advantage, based on economies of scale and efficiency. Possible increase in operating income by at least $ 688, would however justify Waters’ decision to retain product 103. This is because the change would eliminate loss that the company suffers and would eliminate the urgent need for streamlining operations. In either case of operating income, Harvey’s position remains realistic. The researcher states that analysis of possible cost and revenues for the two options informs the decision to reduce the price or not.