Cars corrosion Essay Example | Topics and Well Written Essays - 2000 words

Cars corrosion - Essay Example ( Shaw Barbara and Kelly Robert, 2006) Even though corrosion was still prevalent in the 1950’s the main criteria for a car manufacturer was the strength and durability of the body. Cold rolling of low carbon sheets was the accepted practice during those times. Later on, when the shape and features of the automobile underwent changes steels that were more ductile and could be drawn easily was incorporated into the design. Currently various advanced methods of steel fabrication with the use of alternative materials are being followed which are both cheaper and also have a lower weight to volume ratio. ( Hamilton Bruce and Macauley, 1998) This method of using salt to melt the ice on roads was introduced following World War II which led to an increase of corrosion, affecting the functional and structural integrity of the vehicle. The general appearance of the vehicle was also affected. Some of the common pitfalls of corrosion due the presence of salts were formation of holes on body panels, corrosion of brake linings, wear and tear of the frame and bumper supports, discoloration and pitting effects on surfaces of vehicles. Alternate materials were designed to take care of this type of corrosion; however this led to another form of corrosion called galvanic corrosion which occurs when two dissimilar metals are in contact. In the late 1970’s it was noticed that corrosion was taking place to a large extent on the floor panels, exhaust systems, fuel and brake systems which were less visible from outside. Dust control chemicals like calcium chloride and pollutants like nitrogen oxide and sulphur dioxide combined with rain to form acid rains. This prevented the formation of the natural protective layer formation on vehicle surfaces. (Effects of road salt on Motor Vehicles and infrastructure, n.d) The corrosion due to these severe environmental effects was noticed to be maximum during the mid-1970. Customer dissatisfaction forced leading auto manufacturers to

Give an account of Jonathan Swift's citique of the'moderns' especially Essay

Give an account of Jonathan Swift's citique of the'moderns' especially as it is expressed in his'Tale of a Tub' (Sect.IX) and 'Gulliver's Travels (Bks III & IV) - Essay Example His satire has intensity and virulence which upset not only his intended targets but till today haunts critics who have at times simply ascribed it to Swift’s predisposition to misanthropy and depression. Though recent critical knowledge has moved away from this view, the perception of Swift as a misanthrope persists. Perhaps the vehemence of Swift’s satire can be attributed in part to the peculiar need felt by eighteenth century thinkers of the immense importance of their times. There is no other way to explain the huge output of satire in the eighteenth century. Daniel Defoe, Joseph Addison, Richard Steele, John Dryden, Alexander Pope were some other eighteenth century writers who utilized satire in the various genres of literature. Certainly none troubled the eighteenth century conscience more than Swift himself who uses savage polemic to subdue what was anathema to him. It would be wise to take a look at eighteenth century English history to discover where Swift stood and the causes which drew his ire. The late seventeenth century had seen the vigorous emergence in print of ideas which, to put it simply, sought to foreground humanity without any reference to divinity or society. Foremost and most influential was John Locke who in his essay titled, Essay Concerning Human Understanding (1690) attributed the formation of human knowledge to the influence of external stimuli and experience. He rejected the notion that humans were born with certain innate ideas such as those concerning God, time, substance etc. He famously compared the human mind at birth to a white sheet of paper, a tabula rasa, which depended on experience and sense memory to form knowledge. Science emerged as an exciting new discipline that increasingly became a specialisation, cut off from society. Isaac Newton had published his Principia in 1687. The eighteenth century is therefore also termed as â€Å"The Age of Reason† and the â€Å"Age of Enlightenment†. However this