Saturday, May 16, 2020

Comparison of Oedipus the King and Death of a Salesman Essay

The elements of a play are setting, irony, plot, characters, and theme, which will be discussed in the essay. Oedipus the King opens in a Greek amphitheatre depicting the front of a Theban palace. Throughout the play, the setting remains constant. This changes to a more fast-paced play with different settings in different places in Death of a Salesman. Dramatic irony in Oedipus the King is evident throughout, which is similar to the latter play, but in a different form. In here, the irony is evident. Oedipus the King revolves around characters attempts to change their destiny (which fails) - Jocasta and Laiuss killing of Oedipus and Oedipuss flight from Corinth. Each time somebody tries to avert the future, the audience knows†¦show more content†¦Willy Loman is a troubled and misguided man - a salesman and a dreamer with an extreme preoccupation with his own definition of success. Willy feels that physical impact is greater than the elements of his self-defined success. However, it is apparent that Willy Loman is no successful man, even by the audiences standards. He is still a travelling salesman in his sixties with no stable location or occupation, but clings on to his dreams and ideals. He compares his sons with Bernard, using him as a gauge of success. Nonetheless, he stays in the belief that his sons are better than B ernard. Willy recollects the neighbourhood years ago, and reminisces working for Frank Wagner, although he was also in the same condition then as now. He feels that the older Wagner appreciated him more, yet it was himself who voted Howard in. Arthur Miller presents Willy as a man with great bravado but little energy left to support it. He is always tired and has dementia, contradicting himself in his conversations and showing some memory loss, living in his world of illusions and delusions. He argues with Biff, both men without knowing why. The two sons of Willy display the physical appearance of adulthood, but their talk and attitude displays immaturity. Billy finds that he is a failure because of his lack of `success, while Happy thinks he is unfulfilled because he lacks failure. The plot of Oedipus the King is straightforward, whichShow MoreRelatedComparison Essay Between Oedipus the King and Death of a Salesman1402 Words   |  6 Pagesgoes an old saying, â€Å"All anyone asks for is a chance to work with pride.† Well, it seems that some people work with almost too much pride. In order to consider the extent to which pride applies to Sophocles Oedipus The King and Arthur Millers Death of a Salesman, consider the following: Oedipus and Willy both take extreme pride in their professions, their pride blinds them from seeing the truth of their situations, and their pride ultimately leads to their own demise/downfall, all of these invokingRead More Comparing the Tragedies of Hamlet, Oedipus the King, and Death of a Salesman1023 Words   |  5 PagesComparing the Tragedies of Hamlet, Oedipus the King, and Death of a Salesman The tragedies Hamlet, Oedipus the King, and Death of a Salesman have strikingly different plots and characters; however, each play shares common elements in its resolution. The events in the plays’ closings derive from a tragic flaw possessed by the protagonist in each play. The downfall of each protagonist is caused by his inability to effectively cope with his tragic flaw. The various similarities in the closingRead MoreComparing Shakespeare s Oedipus The King And Death Of A Salesman 1738 Words   |  7 Pagessorrowful or disastrous conclusion that elicits pity or terror. Two such examples of literary tragedies are â€Å"Oedipus the King† by Sophocles and â€Å"Death of a Salesman† by Arthur Miller. Although written over 2000 years apart, there are many similarities between the two literary works, but with varying degrees of differences as well. Some of the key areas to be examined when making this comparison are: the social status of the main charac ters, the psychological mindsets the characters are in, their respectiveRead MoreThe Tragedy Of Tragedy Essay1428 Words   |  6 Pageschanges one’s viewpoint on how to handle situations. The two stories that we will compare and contrast are Oedipus the King by Sophocles and Death of a Salesman by Arthur Miller. Comparison In these two epic tragedies, there are a few commonalities or similarities that I feel are important to the reactions of the main characters or tragic heroes, Oedipus the King and Willy the Salesman. Throughout both stories, the reader can follow that the two characters are strong and proud family menRead MoreQuest For Literary Form : The Greeks Believed That The Tragedy1742 Words   |  7 Pages(Miller, Pp. 1831) He explained reasons for publishing â€Å"Death of a Salesman† and claimed that he instilled his character with a combination of feelings and experiences such as grief, unhappiness and little heroic acts. He represented the typical American common man with his tussles to achieve his American dreams that becomes his tragedy. (Miller, Pp. 1832) Miller considers that the common man is as suitable as kings were the focus for tragedies in its uppermost sense. (MillerRead More Willy Loman as Tragic Hero of Death of a Salesman Essay1519 Words   |  7 PagesWilly Loman as Tragic Hero of Death of a Salesman       Willy Loman, the title character of the play, Death of Salesman, exhibits all the characteristics of a modern tragic hero. This essay will support this thesis by drawing on examples from Medea by Euripedes, Poetics by Aristotle, Oedipus Rex by Sophocles, and Shakespeares Julius Caesar, while comments by Moss, Gordon, and Nourse reinforce the thesis.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Death of Salesman, by Arthur Miller, fits the characteristics of classicRead MoreWilly Loman as a Tragic Hero in Arthur Millers Death of a Salesman1218 Words   |  5 PagesWilly Loman as a Tragic Hero in Arthur Millers Death of a Salesman Should Willy Loman of Arthur Millers classic, Death of a Salesman be regarded as a tragic hero, or merely a working-class, socially inadequate failure? Described by Miller as a self-destructive, insecure anti-hero, it seems almost impossible for Loman to be what is known as a tragic hero in the classical sense, but with the inclusion of other factors he maybe a tragic hero, at least in the modernRead MoreEssay Prompts4057 Words   |  17 Pagesunderstanding of the work as a whole. Avoid mere plot summary. You may select a work from the list below or another novel or play of comparable literary merit. Alias Grace Middlemarch All the King’s Men Moby-Dick Candide Obasan Death of a Salesman Oedipus Rex Doctor Faustus Orlando Don Quixote A portrait of the Artist as a Young Man A Gesture Life Rosencrantz and Guildenstern Are Dead Ghosts The Scarlet LetterRead MoreDeveloping Management Skills404131 Words   |  1617 PagesSUPPLEMENTARY MATERIAL 24 Diagnostic Survey and Exercises 24 Personal Assessment of Management Skills (PAMS) 24 What Does It Take to Be an Effective Manager? 28 SSS Software In-Basket Exercise 30 SCORING KEY AND COMPARISON DATA 42 Personal Assessment of Management Skills 42 Scoring Key 42 Comparison Data 42 What Does It Take to Be an Effective Manager? 43 SSS Software In-Basket Exercise 43 PART I 1 PERSONAL SKILLS 44 45 DEVELOPING SELF-AWARENESS SKILL ASSESSMENT 46 Diagnostic Surveys for

Wednesday, May 6, 2020

Machiavelli s The Prince And Utopia - 1964 Words

Human nature is what human beings are born to have certain common characteristics in psychology and behaviors that human beings uphold as the common traits of humankinds. Machiavelli and Thomas More were two influential humanists during the period of Renaissance, and both are the authors of The Prince and Utopia respectively. Thomas More and Machiavelli used different ways to address their thoughts on human nature. More created a perfect and equal Utopian community to synchronize Utopians thoughts and human nature; at the same time, Machiavelli taught human beings how to react and deal with the human nature, which they were born with. On one hand, Thomas More used an ideal community with equal and fair social and political approaches to equalize different human nature of the Utopians on the positive perspective; on the other hand, Machiavelli discussed about human nature through his advices to the princes to be flexible enough to go against human nature by sometimes being non-virtuou sly, yet to fulfill good wills of their people to maintain their power, status and reign. Machiavelli believed some traits are intrinsic in human nature. People were selfish and put themselves in the first priority. Human beings’ concerns were mainly on property and honor. (Machiavelli 50) Machiavelli saw the intrinsic humanity traits and based on that, he made advises to the prince. A ruler should always put his first priority to the things that he had to complete in order to maintain his powerShow MoreRelatedThe Transformative Works Of Niccolo Machiavelli s The Prince ( 1532 ) And Thomas More s Utopia1359 Words   |  6 PagesThe transformative works Niccolo Machiavelli’s The Prince (1532) and Thomas More’s Utopia (1516) display vastly different opinions and perspectives on the relationship between virtue and politics, however some minor similarities between the two works can be noted. The Prince and Utopia create significant contributions to political theory offering different central claims on virtue and its relationship with politics. Another major point of difference between the two texts is the place that war hasRead More A Compare and Contrast of Thomas Moores Utopia and Machiavelli?s The Prince1482 Words   |  6 Pagesthat if you are kind and just you will excel and be successful. But life’s not fair and being just doesn’t necessary mean that a society will stand the test of time and be able to grow. The two different societies introduced in More’s Utopia and Machiavelli’s The Prince are very different and although More’s Utopian society would be considered more just then Machiavelli’s society. Machiavelli’s society is more realistic and more likely to be viable. nbsp;nbsp;nbsp;nbsp;nbsp;Leadership is a majorRead MoreSir Thomas More s Utopia And Niccolo Machiavelli s The Prince1454 Words   |  6 PagesSir Thomas More’s Utopia and Niccolo Machiavelli’s The Prince reflect the ideals of the Renaissance. Their reflections of the Renaissance are similar; however, their representations of the Renaissance also have distinct differences. The Renaissance or â€Å"rebirth† was a cultural movement that accompanied the passage of Europe from the Middle Ages to modern times. Niccolo Machiavelli was an Italian civic humanist, historian, diplomat, philosopher, politician, and writer during the Renaissance. He appliedRead More Analysis of Mores The Prince and Utopia Essay1545 Words   |  7 PagesLondon he started writing the book Utopia and finishing it 1516. After writing the book he was appointed as the privy councilor to King Henry VIII in 1518. He was latter executed in 1535 for refusing King Henry VIII to be the head of the ch urch. Utopia is a fictional book about Mores talk with Raphael Nonsenso and his travels to Utopia. Niccolo Machiavelli was born in Florence, Italy in 1469 to a middleclass family. The time in which Machiavelli lived Italy as a country was notRead More Machiavelli And Plato Essay1564 Words   |  7 Pages Niccolio Machiavelli (Born May 3rd, 1469 amp;#8211; 1527 Florence, Italy.) His writings have been the source of dispute amongst scholars due to the ambiguity of his analogy of the amp;#8216;Nature of Politics; and the implication of morality. The Prince, has been criticised due to itamp;#8217;s seemingly amoral political suggestiveness, however after further scrutiny of other works such as The Discourses, one can argue that it was Machiavelliamp;#8217;s intention to infact imply a positiveRead More Machiavelli Essay953 Words   |  4 PagesThe Prince MAJOR THEME Machiavelli had a true and abiding love for Florence. He wanted to make Florence great and also find himself a job, as he lost his when the Medici family came into power. He dedicated his book on political science, The Prince, to Lorenzo Medici in the hopes that Lorenzo would be impressed and offer him a job. However, Lorenzo ignored the book and Machiavelli. The Prince is a didactic examination of political power, how to achieve it, maintain it, and expand it. MachiavelliRead MoreThe Reformation And Its Impact On The Early Modern Period1622 Words   |  7 Pagessuch as Sir Thomas More. More s use of political discourse came in the form of Utopia, a piece of writing that was highly critical of the King of England and the country itself due to More s personal experience as a counsellor1. Although Utopia was published before the Reformation, it is clear that More had an idea on how the country should be ran and how the King should be responsible for holding it and religion together. This created the foundations for More s hatred towards the Protestant ReformationRead MoreMachiavelli And Humanism930 Words   |  4 Pagesamoral perspective, betrayal is unavoidable and comes with its own set of benefits. This is Machiavelli’s view in his 1513 work The Prince, in which he details the complexities of gaining and maintaining political p ower to his Italian statesman Lorenzo de’ Medici, from whom he hopes to regain a political position after shifts in the unstable Florentine republic. Machiavelli argues that people, particularly political leaders, should have flexible moral codes so that they can bend them when necessary.Read MoreMachiavelli s The Prince 850 Words   |  4 PagesPolitics and Lit. (p.7) 10/17/2003 Machiavelli s breakthrough: Sacrifice History s most prominent leaders have shown extreme congruence. These leaders almost always hold reality over ethics. How can we classify lying and manipulative leaders as immoral when their duplicity is the very reason a society can maintain stability? This idea has of means justifying the ends has been a staple in History s most prosperous of societies. Machiavelli s novel The Prince was the first stab at understandingRead MoreJohn Locke s Views On Private Property And Politics1133 Words   |  5 PagesEach Philosopher in the early modern world has different perspectives regarding private property and politics in society. Although John Locke, Niccolo Machiavelli, and Karl Marx/Frederick Engels are from different times their criticism are crucial onto the world. Being from different eras gives them a unique perspective of how one should rule or govern. Each philosopher displays his own ideas and can seemingly disagree with one another in their methods of government. Therefore when issues of malicious

Tuesday, May 5, 2020

Automatic Traffic Light Control(Presidency University) free essay sample

Azimur Rahman Schooll of Engineering Presidency University Design and Implementation of Automatic Traffic Light Controlled System Approval â€Å"Design and Implementation of Automatic Traffic Light Controlled Syetem† was prepared and submitted by Md. Humaun Kabir (ID:091-033-040),Amam hossain Bagdadee(ID:101-205-041),Md. Rabiul Islam(ID:091-033-040),Md. Nurul Alam(ID:071-012-040) and as been found satisfactory in terms of scope ,quality and presentation as partial fulfillment of the requirement for the Bachelor of Science in Electrical and Electronic Engineering in Presidency University. Cheeked and approved by Thesis Supervisor . Professor Dr. Tapon Kumar Chakraborty Dean and Department Head Department of Electrical and Computer Engineering Azimur Rahman School of Engineering Presidency University Design and Implementation of Automatic Traffic Light Controlled System Acknowledgement Dreams never turn to reality unless a lot of effort and hard work   is put in to it. And no effort bears fruit in the absence of support  and guidance. It takes a lot of effort to work your way through   this goal and having someone to guide you and help you is   always a blessing. We would like to take this opportunity to thank  a few who were closely involved in the completion of this  project. Ingenuity and popular guidance are inevitable for  successful completion of a project. We are indebted to all sources   that helped them in working out this project at each steps of its   progress. Particular we extremely grateful to Project Supervisor Professor Dr. Tapan Kumar Chakraborty, Department of Electrical amp; Computer Engineering for his valuable   suggestion and proper guidance to complete my project. Above   all we thank the lord almighty for giving me all the confidence and ability to achieve this dream ! Design and Implementation of Automatic Traffic Light Controlled System Abstract Traffic signal controlled is playing more and more important roles in modern management and controls of urban traffic to reduce the accident and traffic jam in road. The gas lantern was turned with a lever at its base so that the appropriate light faced traffic. Unfortunately, it exploded on 2 January1869, in during the policeman who was operating it. The modern electric traffic light is an American invention. As early as 1912 in Salt Lake City, Utah, policeman Lester Wire invented the first red-green electric traffic lights. On5 August1914,theAmerican Traffic Signal Company installed a traffic signal system on the corner of East 105th Street and Euclid Avenue in Cleveland,Ohio. It had two colors, red and green, and abuzzer,based on the design of James Huge, to provide a warning for color changes. The design by James Hog allowed police and fire stations to control the signals in case of  emergency. The first four-way, three-color traffic light was created by police officer William PottsinDetroit, Michigan in 1920. In 1923, Garrett Morgan attended a traffic signal device. It was Morgans experience while driving along the streets of Cleveland that led to his invention of a traffic signal device. Ashville, Ohio claims to be the location of the oldest Working traffic light in the United States, used at an intersection of public roads until 1982 when it was moved to local museum. The first inter connected traffic signal system was installed inSaltLake City in 1917, with six connected inter sections controlled simultaneously from a manual switch. Automatic control of  inter connected traffic lights was introduced March 1922 in Houston, Texas. The first automatic experimental traffic lights in England were deployed inWolverhamptonin 1927. Ape-man chenpedestrian traffic signals have come to be seen as a nostalgic sign for the former German Democratic Republic. The color of the traffic lights representing stop and go are likely derived from those used to identify port (red) and starboard (green) in maritime rules governing right of way, where the vessel on the left must stop for the one crossing on the right. Figure: 4 Lanes Road. TECHNOLOGY Optics and lighting:- In the mid-1990s, cost-effective traffic light lamps using light-emitting diodes (LEDs) were developed; prior to this date traffic lights were designed usingincandescentorhalogenlight bulbs. Unlike the incandescent-based lamps, which use a single large bulb, the LED-based lamps consist of an array of LED elements, arranged in various patterns. When viewed from a distance, the array appears as a continuous light source. LED-based lamps (or lenses) have numerous advantages over in candescent lamps; among them are: †¢Much greater energy efficiency (can be solar-powered). †¢Much longer lifetime between replacements, measured in years rather than months. Part of the longer life time is due to the fact that some light is still displayed even if some of the LEDs in the array are dead. Brighter illumination with better contrast against direct sunlight, also called phantom light. †¢The ability to display multiple colors and patterns from the same lamp. Individual LED elements can be enabled or disabled and different color LEDs can be mixed in the same lamp †¢Much faster switching. †¢Instead of sudden burn-out like incandescent-based lights, LED start to g radually dim when they wear out, warning transportation maintenance departments well in advance as to when to change the light. Occasionally, particularly in green LED units, segments prone to failure will flicker rapidly beforehand. The operational expenses of LED-based signals are far lower than equivalent incandescent-based lights. As a result, most new traffic light deployments in the United States, Canada and elsewhere have been implemented using LED-based lamps; in addition many existing deployments of incandescent traffic lights are being replaced. In2006, Edmonton, Alberta, Canada completed a total refit to LED-based lamps in the cities over 12,000 Intersections and all pedestrian crosswalks. Many of the more exotic traffic signals discussed on this page would not be possible to construct without using LED technology. However, color-changing LEDs are in their infancy and may surpass the multi-color array technology. In some areas, LED-based signals have been fitted (or retrofitted) with special Fresnel lenses (Programmed Visibility or PV lenses) and/or diffusers to Limit the line of sight to a single lane. These signals typically have a projector-like visibility; and maintain an intentionally limited range of view. Because the LED lights don’t generate a significant amount of heat, heaters may be necessary in areas which receive snow, where snow can accumulate within the lens area and limit the visibility of the indications. Another new LED technology is the use of CLS (Central Light Source) optics. These comprise around 7 high-output LEDs (sometimes 1 watt) at the rear of the lens, with a diffuser to even outland enlarge the light. This gives a uniform appearance, more like traditional halogen or incandescent luminaries. Replacing halogen or incandescent reflector and bulb assemblies behind the lens with an LED array can give the same effect. This also has its benefits: minimal disruption, minimal work, minimal cost and the reduced need to replace the entire signal head (housing). THE PROJECT Design of Traffic-Control System: Through the project ‘Advanced Vehicles and Vehicle-Control Knowledge Centre’, the Hungarian National Office for Research and Technology supports the design of intelligent traffic-control systems. The main goal of the project is to interlace technological transfer by connecting universities, research centers and leading industrial partners. Automotive technologies are gaining ground in modern road traffic-control systems, since the number of road vehicles and passengers is rapidly growing. There is a perpetual need for safety-critical traffic automation, and traffic engineering makes the dynamic or static analysis and the synthesis of automotive vehicle technologies possible. The main goal of engineering is the planning and management of traffic systems. The project supports the development of reliable and optimal control structures for urban traffic and for motorway systems. The intelligent and cooperative set-up of actuation and its linkage to the central control system is vital for avoiding traffic jams and accidents. Moreover, environmental costs (e. g. pollution) can be decreased. The control architecture of systemic shown in Figure 1. | Figure 1: General traffic management and control structure. | | One aspect of the project aims at developing a traffic control algorithm for future technology. The design of the traffic control system can be evaluated in two steps – synthesis and analysis. Several models and multiple control strategies exist, and engineers must decide between them using a priori knowledge of the real system. Previously collected information can help to choose the appropriate model, parameters, measurement and control methodologies to create the optimal solution. In many cases, control-related variables are almost inaccessible for design unless estimation techniques are applied. In a situation like this, the approximation, computer-based estimation of the variables could be useful. Traffic simulations can be classified in several ways, including the division between microscopic, macroscopic and macroscopic, and between continuous and discrete time approaches. The methodologies of static and dynamic analysis of traffic systems are known. Several state variables, derived from the description of the dynamic system, can be used for operational and planning aspects. A newly emerged area is demand estimation through microscopic traffic modeling. The dynamic aspect of traffic simulation requires previously measured or estimated volumes of traffic. Since the measurement of certain variables in the dynamic description is rather costly, one tries to estimate them. For instance, the observation of constantly varying turning rates at a simple intersection is fairly costly. However, the number of turning vehicles could be applied to traffic light harmonization, or generally speaking to traffic light control. | Figure 2: Traffic jam in Dhaka City. | | Some time has passed since traffic issues were first addressed; in fact, traffic lights apparently existed a century ago. When they were first introduced, their purpose was to ensure the safety of people in the traffic, but as time has passed and traffic has become denser, flow-control issues have become important. Nowadays, control algorithms are extremely complicated, and take traffic-dependent light-control architectures into account. Nevertheless, complementary functions exist to augment the intelligence of such systems. The behavior of traffic is influenced by two main factors: the control inputs and the disturbances incurred. The control inputs are directly related to corresponding control devices such as traffic lights and variable message signs. The manipulation of disturbance Values is not possible, but in some cases they are measurable (e. g. demand), detectable (e. g. ncident) or predictable over a certain time horizon. The most challenging issues relate to automatic incident detection, the modeling of uncertainties, providing a solution that offers robustness under external disturbances, the use of variable message signs in order to avoid traffic jams, and finding an optimal itinerary. The development of an intelligent control structure ensures an optimal solution for all participan ts in the transportation and road traffic system. After the first year, the most significant result of the project is the structural analysis of the references. Several comparative studies have been elaborated to create a basis for further research on estimation and optimal light-control systems. Objective: The goal of this project is to given opportunity to practice designing and implementing sequential machine in this case, a traffic light controller. In this project, intergated circuit(IC’s) was chosen to design to traffic controller. The purpose of this project is to design an automatic, save and efficient traffic flow to assign the right way of the road. This project it was needed to design traffic control signals and implement to ensure whether this circuit is functioning or not. From that decrease a waiting time in road can reduce traffic jam in the road. The expected results of this project are three lanes can green other lanes are red at the same time. The result of this project can implemented with bulbs. (RED,YELLOW,GREEN) Components Required 1. Integrated Circuit 1. IC-1 (555) 2. IC-2 (CD4017) 1. Resistors 3. R1 (10K) 4. VR1 (100K) 2. Capacitor 5. C1 (100mfd/ 16V) 3. Diode 6. D1-D9 (IN4007) 4. Transistor 7. T1 (BC148) 8. T2 (BC148) 9. T3 (BC148) 5. Miscellaneous 10. Three Relays 11. Battery (9V DC) 12. Neon lamp 13. Flexible wires 14. Soldering rod etc. CIRCUIT DIAGRAM: Figure: Circuit Diagram of Traffic System. Circuit Layout: Figure: Circuit Layout of Traffic System. PCB LAWOUT: Figure: PCB Layout of Traffic Signal. The working Principle: This circuit is self explanatory by its name, and can be used to control traffic in public places, or to demonstrate traffic rules in traffic-parks. IC2, which is heart of the circuit, is a decade counter. In this counter for every pulse fed to pin-14, potential keeps shifting from D1 to D9 in cyclic order. IC1 is used as a pulse generator and generates pulses in regular configurable intervals. These intervals can be changed by varying VR1. The circuit is designed in such a way that out of nine pulses, relay RL1 remains triggered for 4 pulses, relay RL2 for 1 pulse and relay RL3 for remaining 4 pulses. Since D1-D4 provide current to T1, T1 is on whenever there is potential on any diode D1 to D4, which keeps relay RL1 triggered. Similarly other diodes are responsible for RL2 and RL3 triggering. Red, Yellow and Green lamps can be connected to the relays RL1, RL2 and RL3 respectively to complete your mini traffic light controller. Figure: 4-Lane Road Traffic Signal Planning. DESCRIPTION OF MAJOR COMPONENTS: 555 Timers –IC It is basically an 8–pin timer IC, which can produce precise time delay. It works on wide range of power supply voltage from 3V to 18V. The function of each pin of the IC is given below – * Pin–1: it is connected to ground (0V) terminal of power supply. * Pin–2: It starts up timing cycle, when its voltage is less than ? Vcc, the output of IC becomes high (1). * Pin–3: it is output pin which either source or sinks current up to 200mA. * Pin–4: it is reset pin. When it is + ve, IC works normally. However, when it is –ve, IC stops its working completely. * Pin–5: control voltage pin. It may not be used in normal working. * Pin–6: it is threshold pin. It finalizes the timing cycle of the IC, when its voltage is equal to or greater than ? Vcc, the output of IC becomes low (0). * Pin–7: it is discharge pin. It discharges external capacitor into itself. * Pin–8: it is connected to + ve terminal of battery, generally 3–18V. When the trigger is applied (i. e. switch is closed), the Trigger terminal (inserting terminal of lower comparator) is directly connected to the ground(0V). This toggles the output of lower comparator from LOW to HIGH. So the SET terminal of FLIPFLOP is at HIGH, toggling the Q to LOW. The output is Figure: 555timer output with high frequency Figure: 555timer output with high frequency 4017 Decade Counter: The count advances as the clock input becomes high (on the rising-edge). Each output Q0-Q9 goes high in turn as counting advances. For some functions (such as flash sequences) outputs may be combined using  diodes. The reset input should be low (0V) for normal operation (counting 0-9). When high it resets the count to zero (Q0 high). This can be done manually with a switch between reset and +Vs and a 10k resistor between reset and 0V. Counting to less than 9 is achieved by connecting the relevant output (Q0-Q9) to reset, for example to count 0,1,2,3 connect Q4 to reset. The disable input should be low (0V) for normal operation. When high it disables counting so that clock pulses are ignored and the count is kept constant. The ? 10 output is high for counts 0-4 and low for 5-9, so it provides an output at 1/10 of the clock frequency. It can be used to drive the clock input of another 4017 (to count the tens). Resistor: A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. The current through a resistor is in direct proportion to the voltage across the resistors terminals. Thus, the ratio of the voltage applied across a resistors terminals to the intensity of current through the circuit is called resistance. This relation is represented by Ohms law: Figure: Symbol of Resistror. Capacitor: A capacitor (originally known as condenser) is a passive two-terminal electrical component used to store energy in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors separated by a dielectric (insulator); for example, one common construction consists of metal foils separated by a thin layer of insulating film. Capacitors are widely used as parts of electrical circuits in many common electrical devices. The capacitor is a reasonably general model for electric fields within electric circuits. An ideal capacitor is wholly characterized by a constant capacitance C, defined as the ratio of charge  ±Q on each conductor to the voltage V between them: Figure: Symbol of Capacitor. Transistor: A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistors terminals changes the current flowing through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuit Figure :Symbol of Transisitor. RELAY: A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits, repeating the signal coming in from one circuit and re-transmitting it to another. Relays were used extensively in telephone exchanges and early computers to perform logical operations. Figure: Symbol of Relay Traffic light is saved by the Pest Repellent: Things you will need†¢ IC 555 – 1 no. †¢ Resistors- R1 – 470k- R2 – 100 ohms, R3 – 100 ohms, R4, R5 – 1k, R6 – 47 ohms, †¢ LED – 1 no, Capacitors, †¢ Speaker – 1 no, C1 – 10 ? F / 25V (Electrolytic), C2 – 1000 ? F / 25V (Electronic), C3 – 0. 01 ? F (Ceramic), Battery, †¢ Speaker – 1 no, 9V and battery snap (1 no. ), †¢ LED – 1 no, †¢ Speaker – 1 no, †¢ Soldering iron and alloy. The ultrasonic pest repellent device available on the market but a major drawback is that their power output is low and their effectiveness suffers. This electronic pest repellent generates powerful ultrasonic signals to repel pests. That’s reason we can protect our traffic light by this device. In summer season, pest is attracted by light at night. That’s reason lights are unable to through their full focus. That’s reason we add pest repellent with Traffic Light. Advantage of Traffic Light Controller: The following is from section 4B. 3 of the Ohio Manual of Uniform Traffic Control Devices: When properly used, traffic control signals are valuable devices for the control of vehicular and pedestrian traffic. They assign the right-of-way to the various traffic movements and thereby profoundly influence traffic flow. Traffic control signals that are properly designed, located, operated, and maintained will have one or more of the following advantages: A. They provid e for the orderly movement of traffic. B. They increase the traffic-handling capacity of the intersection if: 1. Proper physical layouts and control measures are used, and 2. The signal operational parameters are reviewed and updated (in needed) on a regular basis (as engineering judgment determines that significant traffic flow and/or land use changes have occurred) to maximize the ability of the traffic control signal to satisfy current traffic demands. C. They reduce the frequency and severity of certain types of crashes, especially right-angle collisions. D. They are coordinated to provide for continuous or nearly continuous movement of traffic at a definite speed along a given route under favorable conditions. E. They are used to interrupt heavy traffic at intervals to permit other traffic, vehicular or pedestrian, to cross. Traffic control signals are often considered a panacea for all traffic problems at intersections. This belief has led to traffic control signals being installed at many locations where they are not needed, adversely affecting the safety and efficiency of vehicular, bicycle, and pedestrian traffic. Traffic control signals, even when justified by traffic and roadway conditions, can be ill-designed, ineffectively placed, improperly operated, or poorly maintained. Improper or unjustified traffic control signals can result in one or more of the following disadvantages: A. Excessive delay; B. Excessive disobedience of the signal indications;   C. Increased use of less adequate routes as road users attempt to avoid the traffic control signals; and   D. Significant increases in the frequency of collisions (especially rear-end collisions). CONCLUSION: Often the District is contacted by citizens that believe that traffic signal have many advantages and no disadvantages. While traffic signals can help