The Amateur Scientist :: essays research papers

I was on my way to work, when I started to read this interesting story and I don't deny that I was a little sceptical in the beginning. But the more I read, the more I wanted to know about this man and his unique ways to define Science. I finished reading it in about 15 minutes, it literally sucked me in. This is an attempt to analyze and explain to the "audience," what my personal point of view is regarding this great genius, great mind, great scientist Richard Feynman. Defined by his colleagues as the "The brightest mind since Einstein," he explains how he used everyday tools to make scientific discoveries. How he describes his methods in a simple way makes science enjoyable and understandable, even to the average reader. I enjoyed reading the essay entitled "The Amateur Scientist," by Nobel prize-winning physicist Richard Feynman (1918-1988). I found it to be very interesting and felt that Mr. Feynman was very thoughtful. Rather than explain in technical detail about his work in physics, Feynman instead related interesting anecdotes throughout his life, as a college student and graduate student at Princeton University, that gave to the reader an understanding of his work as a scientist. The writing won my attention because his stories about his youth and his days at Princeton fascinated me. He was always exploring his environment to learn new things about science, especially how things worked. Feynman's thirst for clever things to do and clever ways to do ordinary things were remarkable. One of the best anecdotes that illustrate this point, was his experience at Princeton detailing ants' behavior. Feynman was constantly searching for the connection between hypothesis and truth, so one day at Princeton he started to observe the ants' that were coming out on his windowsill. The experiment with the ants is a reflection of this man's mind, always in search for an answer. In this anecdote Feynman explains how, with only a bit of sugar, and a couple of pieces of paper, he was able to find out many things about ants' behaviors. Feynman compares his study on the ants with the same kind of "experiment" he performed in Brazil, observing leaf-cutting ants. The author pointed out that, although the Brazilian ants seemed to be smarter, there are still some affinities with domestic ants. It is remarkable how Feynman discovered that ants have no sense of "geometry," the goal of his experiment was to determine whether or not ants have some kind of communication a nd if they have the ability to find their way back where the "food" was.

A. Racial Group Essay

1. The sociological concept of minority can be described as a a. group that experiences limitations and barriers to life’s opportunities. b. group that is numerically less than 50% of the population. c. condition defined exclusively in terms of physical traits. d. condition that does not have negative effects in a democracy. 2. Members of a minority or subordinate group a. share physical or cultural characteristics that distinguish them from the dominant group. b. have less power over their lives than do members of a majority. c. acquire membership by being born into that group. d. all of these apply 3. All of the following are processes that may create subordinate groups except: a. immigration. b colonialism. c. annexation. d. extermination. 4. Which term is used by sociologists to describe a group that is set apart from others because of obvious physical differences? a. racial group b formal group c. ethnic group d. social group 5. Which of the following is considered a racial group? a. Jews b. Puerto Ricans c. African Americans d. all of these 6. Which term is used to describe a group that is set apart from others primarily because of its national origin or distinctive cultural patterns? a. racial group b. ethnic group c. social group d. formal group 7. Ethnicity refers to a. differences in physical and mental characteristics b. racial differences. c. cultural differences. d. citizenship. 8.Which of the following is considered an ethnic group? a. Mexican Americans b. Puerto Ricans c. Irish Americans d. all of these 9. Which of the following is NOT considered an ethnic group? a. Puerto Ricans. b. Polish Americans. c. Italian Americans. d. Muslims. 10. Subordinate groups include a. Roman Catholics. b. deaf people. c. women. d. all of these 11. The concept of race is a. determined by blood type. b. biologically based on genetically isolated groups. c. predicated by skin shade increments. d. socially constructed. 12. When belief in the inheritance of behavior patterns is coupled with the feeling that certain groups are inherently superior to others it is called a. racism. b. ethnocentrism. c. prejudice. d. racial formation. 13. Racial formation refers to the a.biological merging of two races. b.creation of race-bias IQ tests. c.sociohistorical process by which racial categories are created and manipulated. d.defining of new race categories by the media. 14. Which of the following theoretical perspectives tends to emphasize how the multiple parts of society are structured to maintain its stability? a.functionalist theory b.labeling theory c.macrosociological theory d.conflict theory 15. Which of the following perspectives on race and ethnicity tends to emphasize group tensions between the privileged and the exploited? a.functionalist b.macrosociology c.microsociology d.conflict 16. The conflict perspective emphasizes a.social change. b.the exploitation of minorities by dominant groups. c. the redistribution of resources. d. all of these 17. Exaggerated generalizations about the characteristics of members of a group that do not recognize individual differences within the group are known as a.stereotypes. b.pluralities. c.self-fulfilling prophecies d.scapegoats. 18. In certain situations, we may respond to stereotypes and act on them, with the result that false definitions become accurate. This is known as the a. functionalist theory. b. exploitation theory. c. self-fulfilling prophecy. d. authoritarian personality. 19. Stereotypes are applied to a.lesbians. b.gamblers. c.people with disabilities. d.all of these 20. The formation of a subordinate-group-dominant-group relationship emerges through a.annexation. b.colonialism. c.migration. d.all of these 21. World systems theory addresses the conflict between a.nations who control wealth and nations who provide natural resources and labor. b.subordinate and dominant groups. c.religious groups around the globe. d.functionalist and conflict theory. 22. Which term refers to the physical separation of two groups of people in terms of residence, workplace, and social functions? a. pluralism b. amalgamation c. segregation d. assimilation. 23. The term melting pot refers to a.amalgamation. b.fusion. c.the formation of a new cultural entity. d.all of these 24. Pluralism refers to the existence of a.one homogeneous culture. b.social integration. c.diverse cultures co-existing in the same society. d. Black separatism 25. The development of solidarity among ethnic subgroups is called a.pluralism. b.panethnicity. c.fusion. d.marginality.

Parkinson’s disease is a disorder that progresses over...

Parkinson’s disease is a disorder that progresses over time. It affects your movement through your nervous system; the disorder causes stiffness, and slow movement in your body. Most noticeably started in little â€Å"tremors† in your hands it gradually increases over time. Early stages consists little expression in your face or no movement in your arms as you walk. Your speech may also slur, or slow down. Symptoms usually worsen over time. Symptoms of Parkinson’s disease vary from person to person. They often affect one side of your body and steadily make its way to the other side. Regrettably, the first side is usually affected the worst. Tremors usually affect the body. Shaking begins in your hands or fingers. You can tell when your†¦show more content†¦Also exposure to toxins such as herbicides, and pesticides slightly increases your risks due to the chemicals. Parkinson’s disease is also accompanied by dementia in some cases. Your thinking be comes difficult due to cognitive problems in the brain. Depression and emotional changes in your person may develop also. You may feel panicked, anxious, or even lose motivation to carry out your day. Symptoms like these can be cured with anti-depressants. Drooling may become an issue due to it being hard, or slowed swallowing. Also patients with Parkinson’s may develop sleep disorders. Waking up in throughout the night, or waking up early or sleeping earlier than usual can be expected. You may also experience rapid eye movement, which involves actin gout your dreams. Being unable to control your bladder, or difficulty urinating is also a complication of Parkinson’s. Due to a slower digestive tract, you may have constipation. Your blood pressure also changes. You will feel dizzy or lightheaded when you stand; this is due to orthostatic hypotension, a drop in blood pressure. You may also experience problems in your sense of smell. You may have trouble identifying a cert ain odor, or differentiating between smells. Fatigue and pain are also complications of the disease. You lose energy and quickly become tired. Pain is usually associated in different parts of the body. There are different leads to Parkinson’s disease. As time progresses certain neurons in yourShow MoreRelatedTaking a Look at Parkinsons Disease1450 Words   |  6 Pages Parkinson’s Disease Parkinson’s disease is the most common movement disorder; its characteristics are loss of muscle control, stiffness, slowness, shaking, and impaired balance. My grandmother had Parkinson’s very bad and she couldn’t walk anymore or hardly talk, it’s very sad because they are just unable to do anything. Muhammad Ali is one of the best boxers of all time and now he also suffers from Parkinson’s; he also has all of these symptoms and is hardly able to talk. As symptoms worsenRead MoreSymptoms of Parkinsons Disease Essay1373 Words   |  6 PagesSymptoms of Parkinsons Disease Parkinsons Disease is a degenerative disorder of the nervous system. Parkinsons is a disease that may happen in younger people, but the risk mainly increases with age. This is because many of the cellular systems in the brain are difficult to renew by themselves while there are trillions of nerve cells in the brain to compensate for the loss of these cells. For example, in Parkinsons disease the symptoms are caused by the selective loss of a small populationRead MoreParkinson’S Disease. Abstract. Parkinson’S Disease Is A2430 Words   |  10 PagesParkinson’s Disease Abstract Parkinson’s Disease is a very common disorder these days. Over 10 million people live daily with Parkinson worldwide. Parkinson’s Disease was named after an English surgeon James Parkinson who wrote a detailed description essay called Shaking Palsy in 1817. The average age for Parkinson’s Disease is between 45 to 70 years old but you can also have juvenile or young onset as well. Most common symptoms of Parkinson are tremors, bradykinesia or akinesia, or rigidity orRead MoreParkinson s Disease And Its Effects1810 Words   |  8 PagesParkinson’s disease is a neurological disorder that affects the movements and nervous system of the body. Parkinson’s starts out slow and continues to worsen over time. It is estimated that one million people in the United States alone are struggling with Parkinson’s disease. Parkinson’s disease is a very hard disease to live with day by day. It can make simple fine motor skills a difficult task such as, buttoning your pants, eating a slice of pizza, or even turning a door handle. It affects aboutRead MoreThe Cancer Of The Blood Cells3912 Words   |  16 Pagescancer of the blood cells. Leukaemia is a common type of blood cancer and can have an effect on adults 10 times more as children. People diagnosed with leukaemia are normally people who are over 50 years old. Leukaemia usually starts in the bone marrow, where blood cells are formed in the body. The bone marrow forms three types of blood cells: ï‚ § White blood cells helps fight off infections and diseases. ï‚ § Red blood cells are responsible in carrying out oxygen throughout the body. ï‚ § Platelets support inRead MoreEffectiveness Of Health And Social Care2541 Words   |  11 PagesDiscuss how the practitioners and agencies involved in the care pathways work together to provide the care needed for both physiological disorders Introduction In this assignment I will discuss the effectiveness of health and social care practitioners and agencies working together to deliver the care pathway for one of the chosen physiological disorders. The disorder I have chosen to evaluate is diabetes type 2 diabetes. Strengths Working in a multidisciplinary team means the patient with type 2Read MoreParkinson s Disease : A Progressive Neurodegenerative Movement Disease Essay6696 Words   |  27 PagesIntroduction The research problem Parkinson’s Disease (PD) is a progressive neurodegenerative movement disease affecting approximately 1% of people at age 60. It is the most second most commonly occurring neurodegenerative disease in the elderly (after Alzheimer’s Disease). In PD patients, loss of dopamine-producing neurons results in a range of motor and non-motor symptoms. The prevalence of PD increases with age, and currently there is no cure, no means of slowing the disease progression, and no meansRead MoreWhat Is Alzheimer s Disease? Essay1698 Words   |  7 Pages What is Alzheimer’s Disease? Alzheimer’s Disease (AD) is a type of dementia that is irreversible and it causes problems with memory, thinking and behavior. The symptoms usually develop slowly and get worse over time, becoming severe enough to interfere with daily tasks. (â€Å"Alzheimer’s Disease Dementia,† n.d.). Dementia is a term for a decrease in the intellectual ability which it can be severe enough to interfere with an individual’s day to day life. The German neurologist Alois Alzheimer was theRead MoreSpinal Cord And The Nervous System Essay1532 Words   |  7 PagesThe nervous system is associated to many neurological diseases including strokes, Alzheimer’s disease, Parkinson’s disease, sleep disorders, and spinal cord injuries. Spinal cord injuries arise to be extremely common, in fact, each year in the United States there are ten thousand new spinal cord injuries alone (Spinal Cord Injury). The spinal cord is an immensely fragile part of the body, it contains a bundle of nerve fibers that connect the brain to the rest of the body. Since the spinal cord isRead MoreLevel 3 Health and Social Care Unit 365dementia3984 Words   |  16 Pages Alzheimer’s disease: The brain is a very complex organ and it is divided up into different areas that control bodily functions. The brain contains at least 100 billion cells. In dementia some of these cells stop working. The part of the brain this occurs in will affect how that person thinks, remembers and communicates. Alzheimers disease, first described by the German neurologist Alois Alzheimer, is a physical disease affecting the brain. During the course of the disease, protein plaques

The Power Of Writing Essay - 995 Words

The Power Of Writing When I entered this class I didn’t think that we would be discussing the concept of writing. In fact, I never thought the concept of writing was that complicated enough to be discussed in a classroom setting. However, as demonstrated throughout history different forms of communication, such as writing, have shaped and evolved human interaction and invoked societal change. For example, in Walter Ong’s essay, â€Å"Writing is a Technology that Restructures Thought,† Ong acknowledges that means of communication, such as the computer and pencil, have been in argument since Plato’s time (319). Consequently, I asked myself how something so simple has been taken for granted for so long. The appropriate answer to that†¦show more content†¦After searching for about an hour and a half, I finally found a couple of flat rocks that would work. Compared to the computer, which I can type approximately 40 words a minute, writing in the natural setting seemed a lot harder than I thought it would be. For example, just finding a stone to write on took almost two hours. Ong describes the process of writing on the computer compared to on paper as, â€Å"because we have by today so deeply interiorized writing, made it so much a part of ourselves, as Plato’s age had not yet made it fully a part of itself, we find it difficult to consider writing to be a technology as we commonly assume printing and the computer to be.† (321) This assignment demonstrated not only how hard it is to physically write, but also to find the utensils in nature as did our ancestors. Dennis Baron described writing, with a pencil, as â€Å"The pencil may seem as a simple device in contrast to the computer, but although it has fewer parts, it too is an advanced technology.†(39) In addition, this assignment helped me to believe that writing is not only a technology but it is also a technology that is taken for granted. Baron also described writing as, â€Å"we have a way of getting so used to writing technologies that we come to think of them as a natural rather than technological. We assume that pencils are a natural way to write because they are so old-or at least because we have come to think of them asShow MoreRelatedThe Power of Writing Essay580 Words   |  3 Pagesnbsp;nbsp; profound way. The idea that one could have a talent so special that it would be death to hide is an nbsp;nbsp; incredible thought. nbsp; nbsp;nbsp; When I was a freshman in high school, I received a Young Talent Award in writing. The award was nbsp;nbsp; presented to me by a renowned author. However, I remember very little of the author or nbsp;nbsp; what his thoughts on my piece were. As the audience left the crowded chapel where the ceremony nbsp;nbsp;Read MoreCreative Writing: The Power of the American Dream867 Words   |  4 Pagesthe person who is working for it wants it to be. As we can see in the play, all of the main characters might be striving for an American dream, but none of them are striving for their same American dream. The idea of the American dream has a strange power to it. It seems to almost drive people insane with all of the ideas thrown into their brain: some not even achievable. There is no doubt it is always good to have a â€Å"dream† idea to give work an incentive. When we get caught up in work striving forRead MoreExploring The Power And Purpose Behind Choice Writing996 Words   |  4 PagesTopic Title: Exploring the Power and Purpose Behind Choice Writing in Kindergarten 2. WHY: Post Title: Working With Young Writers: Examining Best Practices Message: Kids using the Writing Workshop approach learn and refine specific skills they apply during independent workshop time. When teaching to support and develop independent writers, we want kids to build enduring connections that they can apply when they write†¦beyond the workshop.   We want them to own understandings of conventions and theRead MoreThe Dark Night of the Soul Essay932 Words   |  4 Pages Summary Essay: The Dark Night of the Soul Richard E. Miller essay â€Å"The Dark Night of the Soul† to be an interesting way to think about reading and writing in today’s world. Richard uses the violence in the world to question if our educational system is relevant to keeping us safe and whether the power literature can be used to change the tragic event that happen around us every day. Richard begins with a few horrific events such as Columbine high school massacre. He makesRead MoreSimilarities Between Juvenal And Augustus1067 Words   |  5 Pagesown views on Rome, however, which they would use in their writing. Two such writers are Juvenal and Augustus, both of which had their own perspectives of Rome. Their descriptions are both so different that it calls to question, which of their accounts is correct and which is not. Res Gestae by Augustus does not provide an accurate description of Rome, mainly due to the fact that Augustus was listing his own achievements in his writing. The real Rome is described by Juvenal in The Satires, whichRead MoreWriting For Change The World900 Words   |  4 PagesWriting is Stupid This is stupid! Why do we even have to write essays, what’s the point? How do I even start this? That is what my writing and thought process consist of. I complain and procrastinate until the last minute, that’s why this is being done the night before the due date. I’m just like many other students according to Gary Goshgarian introduction to Anne Lamott’s article, â€Å"Getting Started†, whose â€Å"biggest writing challenge is simply getting started† (Goshgarian, 94). Along with many ofRead MoreLanguage Is The Bridge Of Communication1138 Words   |  5 Pageswanted or I didn’t say it how I intended to. Language covers all these aspects of communication, the verbal, the reading and the written. There is power in language- the power of knowledge, the power to express oneself and the power to make a difference. The clichà © knowledge is power is commonly used and there is a lot of truth behind that statement. The power of knowledge in language is beautifully explained in Malcolm X’s essay, Homemade Education. In it, X explains how he became liberated as his knowledgeRead MoreWriting, Listening, And Listening999 Words   |  4 Pages Writing, along with reading, speaking, and listening are intricate and constructive processes that require the synchronization of complex cognitive skills. At the core, writing is a process of communicating purposeful thoughts and ideas in a variety of forms for a multitude of purposes. Writing provides learners with tools for discovering, for shaping meaning, and for reaching understanding through written expression. In reflecting on my experiences as an educator and studies in literacy pedagogiesRead MoreThe Power Of A Word Is Humongous1247 Words   |  5 Pages The power of a word is humongous. Writing is a weapon in the hands of human bein gs, and we all need to know how to use this weapon to make the world a better place. Persuasive writing is a form of writing the main purpose of which is to persuade readers that the writer’s opinion is correct. But how can you convince anybody through writing? What are the components of the persuasive writing? How is persuasive writing different from verbal persuasion? These are the questions that individualsRead MoreWhy Does The U.s. Write? Essay1301 Words   |  6 Pagestrying to inform you or that it tries to talk to you. The writing on the paper or screen begins to jump off the page and is filtered through your head and you begin to think, â€Å"I do not believe in this† or â€Å"I can totally relate to this†. Maybe you thought whoever wrote it was only telling you what they wanted you to hear or what they felt important, when in actuality it meant nothing to you. On the other hand it may come to dawn on you that writing is nothing more than a pathway for others to plant thoughts

Abstract -crankshafts Are An Integral Part Of An...

Abstract –Crankshafts are an integral part of an automobile engine. The crankshaft undergoes various loads and stresses during operation. A crankshaft is responsible in conjunction with the piston rod for converting the linear movement of piston into rotary movement. In this paper we represent FEA analysis and topology optimization of 2 wheeler crankshaft. In this paper represents detail about the project. In this project, the crankshaft will be analyzed and suitable changes for weight optimization will be made in the crankshaft. The main objectives in this project are to analyze and find out the low stress regions on the crankshaft and try and reduce weight of the crankshaft by eliminating the low stress regions from the crankshaft. In†¦show more content†¦The shape and size of crankshaft depends on the number and arrangement of cylinders. It is usually made by steel forging, but some makers use special types of cast-iron such as spheroidal graphitic or nickel alloy castings which are cheaper to produce and have good service life. Fig. 1.2: Crankshaft There are other components in the I.C. Engine like Bearings, Flywheel, spark plug, fuel pump and carburetor but majority of the parts contributing in the mechanism are explained above. NEED OF PROJECT: Crankshaft is one of the most important moving parts in internal combustion engine. Crankshaft is a large component with a complex geometry in the engine, which converts the reciprocating displacement of the piston into a rotary motion. It is essential that crankshaft is designed with consideration of dynamic loading and with modern engineering techniques with good factor of safety. At the same time it is important to reduce the weight of any component of the automobile even if by the slightest without compromising function of the component. As reduction in the weight helps us improving carbon footprint of the vehicle and reduce the effect of emission on the environment as well as have more economical transport by increasing fuel efficiency of the vehicle. III. LITERATURE review Jaimin Brahmbhatt Prof. Abhishek Choubey (2012) presented a paper on â€Å"Design and Analysis of Crankshaft for Single Cylinder 4-Stroke Diesel Engine†Show MoreRelatedHybrid Vehcile6999 Words   |  28 PagesTechnologies (SP-1789) Future Transportation Technology Conference Costa Mesa, California June 23-25, 2003 400 Commonwealth Drive, Warrendale, PA 15096-0001 U.S.A. Tel: (724) 776-4841 Fax: (724) 776-5760 Web: www.sae.org All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. For permission and licensing

Wireless Street Lighting Control and Monitoring System

Question: Discuss about theWireless Street Lighting Control and Monitoring System. Answer: Introduction Todays world is technology oriented and even to accomplish a simple task the technology is used. The technology brings the nation to its forefront by effective working processes and thus, the technology has increased the demands in all the aspects. In the earlier days, there were street lights which were controlled manually, but the modern world is moving towards implementing traditional systems in Eco-friendly ways. The technology has advanced and it demands change, a change which brings efficiency in work. And in many cities, due to the manual controlling of street lights there is a lot of electricity wasted as the light are left without turning it off. Therefore, the wireless street lights controlling and monitoring system is developed to reduce the power consumption, for easy maintenance, for reducing CO emissions and for reducing the cost for maintenance. The objective is that, the various wireless street light controlling and monitoring systems for controlling and monitoring the status of street lights are summarized. Literature Review Smart Street Lighting Control and Monitoring System for Electrical Power Saving by Using VANE According to [1], the most of the countrys electricity is consumed in the street lighting. According to this research paper, it is considered that there is possibility that the electric power for the street lights can be reduced. The main idea is that the electricity can be reduced in the areas where there are no vehicles available during late nights. This is made possible to function automatically. And the aim is that when the sensor encounters the vehicles coming nearby then the lights are turned on automatically. To develop an automatically controlling and monitoring system for the street lights, it requires a system which can detect the vehicles, its speed and its location automatically. And, it is expected that this can save a lot of electric power in all the countries. It is also assumed to increase the shelf life of the lamps and continues the automatic controlling and monitoring with the help of the Vehicular Ad-Hoc Networks (VANET). Thus, this system identifies all the requi red quantities like the location of the vehicles, their presence and their speed. The infrastructure of VANET has the capacity to reduce the cost and increases the system's deployment process. The wireless Ad-Hoc networks offers security of wireless technologies based on the Wireless Ad-Hoc networks. The mobile computing devices and the wireless communications. The wireless communication helps to maximize the road safety, by exchanging the safety related information. The direct communication between vehicles using an Ad-Hoc network is referred to as inter-vehicle communication (IVC) or Vehicular Ad-Hoc Networks (VANETs). This gives the benefit of communicating with the surrounding wireless transceiver and controller. The VANET structure contains Road-Side Unites (RSUs) network, which are the interconnected Wireless Access Point and the vehicles are considered as the mobile nodes. This interconnection allows the communication of vehicles at the same instance. LED Based Energy Efficient Wireless Street Light Control and Monitoring System As stated in [2], the renewable energy sources is used in the place of a typical power sources. This change focuses to take care of the environment. This research paper, talks about the use of the solar energy for the working units to control the street lighting system. The available wireless street lighting control systems in the market contains certain disadvantages, to rectify this problem the solar LED street lights are used. This promises greater efficiency when compared with the previously used systems. The (GPRS) General Packet Radio Service is utilised for transmitting the real time data of the street light. This also has the capacity to identify the faults in the system and can also contacts the control room to resolve the issues. Earlier, the solar lights systems were controlled using the traditional artificial inspection tour. This tour increase the work, due to which the maintenance is delayed. Thus, the management faced inconvenience situation. Hence, to create a convenient management, the research paper considers monitoring the function on time, and controlling is appropriately is required. And this is satisfied by the intelligent and energy efficient wireless street light controller and a monitoring system. This is available with a Radio frequency and GPRS. Additionally, even the use of electricity is saved with the use of solar energy. The advantage of solar light is that the amount of carbon dioxide emissions can be easily decreased. Intelligent Wireless Street Lighting System According to [3], the ZigBee-based wireless devices are used for wireless communication of the street lights. Various sensors are used for the controlling and maintenance management. The main aspect is that the transmission is carried out in term of point-by-point. The transmitters and receivers are used for this transmission process. Due the increasing carbon dioxide emission, this paper contains three solutions. The solutions are, use of recent technologies like the LED. The next solution is the most revolutionizing method, which uses the remote management system for the street light management. The GPRS transmission, power line carrier transmission or GSM is used for communication. The last solution is to make use of the renewable energy source such as the solar energy. The ZigBee protocol and the network sensors are utilised for management purpose. The three solutions ensures to save the electricity, reduces the harm of CO2. And offers an intelligent system for managing the stree t light systems. Conclusion The three research papers are reviewed and their purpose and use in the wireless street lighting controlling and monitoring system is reviewed. In the first paper, the VANET infrastructure is used for reducing the cost and efficiency of working in the automatic controlling and monitoring system of street lights. The second paper, uses solar LED Street light and the RF and the GPRS are a communication medium to transfer the real time data. Moreover the amount of carbon dioxide emission is reduced. In the third paper, the ZigBee-based wireless devices are used for wireless communication of the street lights. Here, the transmitters and receivers are used for this transmission process. Therefore, various wireless street light controlling and monitoring system are mentioned. References S. Mohamed, "Smart Street Lighting Control and Monitoring System for Electrical Power Saving by Using VANET",IJCNS, vol. 06, no. 08, pp. 351-360, 2013. N. Bakshi, S. L.Chavan and T. Temkar, "LED Based Energy Efficient Wireless Street Light Control and Monitoring System",International Journal for Research in Applied Science Engineering Technology (IJRASET), vol. 3, no., 2015. F. Leccese and Z. Leonowicz, "Intelligent wireless street lighting system",Environment and Electrical Engineering (EEEIC), 2012.

Macbeth Essays (1031 words) - Characters In Macbeth,

Macbeth In William Shakespeare's Macbeth, the hero evolves tragically from ?valour's minion1? who saved his country from invaders, to a ?tyrant2?, who had children murdered to secure his power. By definition, a tragic hero, such as Macbeth, is ruined by a fatal flaw. It is not the heart of an evil man, but rather political ambition and misplaced confidence, combined with a weakness to manipulation, that fuel this weak character's demise. Initially, Macbeth does not harbour malevolent intentions. He is ?Belloma's bridegroom3?, a war hero viewed most admirably by his comrades and superiors. Loyal Macbeth lays his life on the line for his king and his country, hardly seeming like one who would commit regicide. In contrast to this display of fortitude, Macbeth exhibits weakness during his first encounter with the weird sisters. Greeting Macbeth as Thane of Cawdor and king, the witches spark his restless ambition. Unlike Banquo, who declares one who trusts such prophecy ?takes reason prisoner4?, Macbeth is tempted by their news, and begs to know more. Upon receiving the title Thane of Cawdor, Macbeth's impulsive side surfaces for the first time as he entertains thoughts ?whose murder is yet fantastical5?. However, he does not commit himself entirely to crime, hoping that ?chance may crown6? him. The witches are not the only ones from whom Macbeth draws confidence. Motivated to the point of summoning evil to help her execute the murder, Lady Macbeth seems to be more focused on the task than her husband. The two implicate themselves in a plot to murder Duncan. Knowing Macbeth is filled with ?milk of human kindness7?, she appeals to his sense of manliness to motivate him to go through with the deed. This painless manipulation on the part of Lady Macbeth further illustrates how weakened Macbeth is by his ambition. His desires are so uncontrollable that the slightest justification of an evil deed will drive him to do it. The ?sorry sight8? of bloody hands upon having murdered Duncan brings about the first hint of madness in Macbeth as his conscience grapples with his ruthlessness. This emotional vulnerability causes his craving for power to become insatiable. Acquiring a ?fruitless crown9? did not leave him completely satisfied; he wanted a line of kings. To beget fulfillment, Macbeth hires murderers to kill Banquo and his son Fleance. This murder is preceded by an act of manipulation of the recruited killers by Macbeth, who makes a veiled promise of favour to the two poor men. Exploiting their situation for the betterment of his, he is evolving from a selfless soldier to a greedy despot. Although he comes to manipulate humans, he loses control of his mind. Disaster falls upon Macbeth as he is overcome by ?saucy doubts and fears10?, which drive him to insanity before his banquet guests. Feelings of dignity and the effects of humiliation are now things of the past as Macbeth now knows only the sensations of hunger for power and fear of retribution. The notion that ?blood will have blood11? has become increasingly prevalent, surfacing in the forms of ghosts and floating daggers. Macbeth is being tortured by his conscience, leading to more restlessness. Macbeth's desperate need to see the weird sisters once more can be attributed to a fear of his fate. They lead Macbeth to believe that he is safe in his throne. All his confidence is placed in their prophecies, illustrating that his ambition would even sell his soul to misleading witches in return for cryptic reassurance. Macbeth is now consumed by his vaulting ambition, becoming even weaker on his quest for power. Towards the end of the play the well-respected warrior becomes the hated tyrant. Already having committed innumerable atrocities, he lowers himself further by having Macduff's innocent wife and children killed in their own home. His former colleagues feel their ?country sinks beneath the yoke12? with each passing day as a result of Macbeth's selfish leadership. They decide that ?Macbeth is ripe for shaking13?, planning to overthrow their former friend and king now that he is so emotionally unstable. In the face of impending death, Macbeth shows self-disgust, remorse and loneliness. He is clearly dissatisfied with himself, declaring his lifestyle ?is fall'n into the sear14?. Macbeth has no ?honour, love,