Revise the paper Essay Example | Topics and Well Written Essays - 750 words

Revise the paper - Essay Example This paper focuses on Bird’s article â€Å"College is a Waste of Time and Money†, the paper analyses and critiques the arguments that Bird offers in support of her view that college education is a sheer waste of time and money for the majority of people. The paper concludes with a recommendation on what need to be done so as to improve college education. The main theses of Bird in her critical view of college education is that college education is not good for many young people, and many young people go to college not because they want to learn or they see any value in college education, but, they go to school for some other reasons. Bird claims that many young people go to college because of reasons that are not relevant to the actual meaning of education. For instance, Bird claims that many young people go to college simply because going to college has become the conventional thing to do after completing high school; Bird also claims that some other young people go to college because they do not want to work, so that they can get the financial support of their parents or taxpayers. Caroline Bird goes on to argue that since many students do not go to school willingly and they do not see any sense of college education, many of college students are sad and sullen throughout their college lives; the students feel unwanted and they fee l that they have been damped in college to stay there temporarily because the world had no place for them. Consequently, Bird concludes that college education is a sheer waste of time and many. A critical review of Bird’s argument on this issue, however, reveals some logical fallacies that Bird committed in supporting her theses. Before we expose the two logical fallacies in Bird’s argument in support of her theses, let us explain the main strength of Bird’s argument. The main strength of Bird’s argument

Development of LED Research Paper Example | Topics and Well Written Essays - 2000 words

Development of LED - Research Paper Example The light-emitting diode produces light that is uniformly dispersed, and the output of the light is equally dispersed over the lens that makes them brighter than the lamps of incandescent. Light-emitting diodes are efficient in energy and can produce a light output of up to ninety percent while producing very little heat while the bulbs of incandescent generate heat by using ninety percent of there energy. An additional loss of energy is experienced in the lamps of incandescent when it comes to its use in the traffic signal. This is so as it only produces white light which has to be filtered for a traffic signal. On the other hand, light-emitting diode produces light that are colored, therefore, dose not need any filtering out. All the energy produced is intense around one colored band, and no energy is wasted on colors that are undesired. The need for finding a way to the reduction of the energy consumption and reduction in the global warming is the drive for the development of energy saving electrical device. The innovation of the light-emitting diode has greatly contributed to energy conservation. However, the little problem face by the device is that it dose not operate efficiently in regions that experience snow and in the very cold environment. However, the technologies in developing heat sink which will transfer heat that is produced at the junction to the recommended areas of the light fixture the problem will be solved. The device will work well in all the climatic condition (Gu, Alex and Nadarajah, pg 1-10). Light emitting diodes are p-n junction devices that are constructed using semiconductors such as gallium phosphide, gallium arsenide, or gallium arsenide phosphide emitting light in the far IR (940m), red or yellow and red or green regions respectively. In a light-emitting diode, the light color depends on the semiconductors used band gap, as the gap increases, the light changes from red, orange, yellow,