The Specter of Terrorism Essay Example | Topics and Well Written Essays - 1000 words

The Specter of Terrorism - Essay Example Example: Al-Qaeda, Hamas, Taliban, Hezbollah, Tehrik-i-Taliban in Pakistan and Armed Islamic Group of Algeria. Offensive acts commonly committed by groups of terrorists are bombing in public places, raping women, kidnapping, torturing, wounding and murdering of civilians, political leaders, journalists and other distinguished characters in the society. Initiatives taken by the nations for abolishing terrorism can thus be highly justifiable. Particularly the United States and United Nations are giants and play significant roles in controlling the acts of terrorism in today’s world. This paper examines the increasing of terrorism in America and Middle East and the role on UN in resolving the problems associated with world terrorism. Involvement of US and UN in the security and political matters of other countries especially in the Middle East seems to have lead by other interests than terrorism. Example: US army invading Iraq in March 2003 is highly obscure. Initially Iraq was p resumed to cause a significant threat on the regional security of Middle East. Allegations made against Iraqi president were developing Weapons of Mass Destruction (WMD) example, nuclear and chemical weapons and not cooperating with the international observers who were agents of the United Nations. Saddam Hussein who was the president during that time rejected all the allegations made by the US. Regardless of the president’s rejections UN placed sanctions upon trading with Iraq and later the war was declared. After a year Charles Duelfer who is an adviser of Central Intelligence Agency (CIA) stated that Iraqi nuclear program was actually eliminated in 1991 and Saddam Hussein was right in rejecting the allegations made by the UN. One can argue that the former president of Iraq died fighting to protect the rights of his country’s sovereignty. And that US army was the actual terrorist who unlawfully used weapons against Iraqi population and its president. Further, no effo rt was taken to compensate the injustice caused by US against Iraq during the war. In a household survey carried out by the World Health Organization (WHO) and the Iraqi health ministry in 2007, it was revealed that the cost of human lives which were lost during the war is much higher than the cost of terrorism operated in Iraq. Initially the number of Iraqi civilian deaths has been not recorded by the international organizations. The actual cost of destroying the physical infrastructure and human capital had been carefully excluded from all the war accounts. Nevertheless the above survey revealed that US troops had killed civilians during the first two years of the war much more than the terrorist group al-Qaida ever did in Iraq (Steele and Goldenberg, 2008). The death toll of Iraqi civilians in fact exceeded one million. Moreover, the death toll of Iraqi children during the trade sanctions placed by the UN was half a million which exceeds the killings of actual nuclear bombing occ urred in Hiroshima (Albright, 1996). The opportunity cost of fighting in Iraq was substantially high for America as well. Example: The cost of fighting ten days in Iraq is equal to funding the continent of Africa for a year and eliminating illiteracy in the world (Crawley, 2008). Clearly the approach adapted by international governing bodies for ending the terrorism in the Middle East has many drawbacks. It is provocative and unjust in many ways. In a global economy where people die in starvation pumping millions of dollars

Political Cartoon Assignment Essay Example for Free

Political Cartoon Assignment Essay The political cartoon that I chose mainly aims towards people who are concerned about the environment and people who are against The American Clean Energy and Security Act. An every day citizen may not get the entire meaning of the cartoon if they do not know the motive behind it or do not follow politics and environmental news. The cartoon is political because it clearly states two things that weigh heavily on the minds of the public right now: tax and the environment. While this doesn’t typically necessarily mean that a cartoon would be political, the word â€Å"bill† on the page in the man’s hand points in the direction of political. The cartoon effectively shows two sides of the issue: one where the public is being told that the bill would cause a tax increase that the American consumers would ultimately have to deal with and another side where the environmentally-conscious person is saying that it’s just a scare tactic and that it would cause more good than harm for the country. At first glance, the cartoon was humorous, but the more I looked at it and began to understand what it was talking about, my thoughts began to change. Although it’s still funny, the cartoon carries a deeper meaning than just entertainment. The main thing that I felt was slight irritation that people could think that there are only two ways of looking at the issue and that people could be so concerned about taxes that they don’t even think about the environment that we’re living in. Although what is being shown is comical, the emotions behind what the artist is trying to show the viewer is not. Even if he shows that there are two sides of the issue, he still wants you to realize that economists are using the current state of the economy to play on your emotions and try to convince you that you’re ultimately hurting yourself by supporting the bill. Whether or not the artist was successful in the attempt to persuade the viewer into a way of thinking is up to the interpretation of each individual person. For me, it was successful. I was able to see the two different sides of the issue and while I understand both, I was able to draw my own conclusion and say that there needs to be some sort of middle ground. In part, the artist wants you to see how you’re being manipulated by the economists and the people that are against the bill to believe that the bill will have more of an impact on your bank account in terms of more taxes rather than having a good impact on the environment. Although I’ve always known that there are people who are against the bill, before seeing it in cartoon form, I never really realized that they really might be just a way of making people choose one or the other; the environment or your money. In terms of opening my eyes, the artist was successful.

Hester - Predator or Prey in The Scarlet Letter :: Scarlet Letter essays

The Scarlet Letter: Hester - Predator or Prey? The Scarlet Letter had a controversial plot when it was published in 1850. The main character, Hester Prynne, and her scarlet "A" have been a symbol of adultery for over one hundred years. It is hard to determine whether Hester should be considered a predator or the prey throughout this novel. Individual upbringing and teachings could create a predetermined opinion of Hester and the sin of adultery. Hester's beauty was breathtaking. Her dark hair and brown eyes were alluring. An attractive figure drew much attention from both male and female members of the community. Jealousy caused many women to reject her friendship. Men secretively desired her although they may have pretended otherwise. Many prejudged Hester as being somewhat less than a symbol of virtue because of her outward appearance. She was never given the opportunity to develop a deep and personal friendship with anyone other than the priest. Her dependence on him drew her closer to him than she realized. Her tenderness and passion was pushed deeper within as years passed. From the very beginning she became a victim when her parents arranged her marriage to the wealthy yet notorious Roger Chillingsworth. He was a man who needed to collect things and Hester became another possession. His great wealth enabled him to lead many different lives and become whomever or whatever he chose. However, his greed and selfishness drove him to abandon Hester and destroy any love she might have had for him. Upon his return, during the platform scene, she pretended not to know him. At that moment her attraction to him still existed. The author portrayed her as being smug and almost flaunting her sin, while at the same time she noticed how handsome her husband seemed. The promiscuity of Hester's character not only instigated her affair but had also drawn her towards Roger Chillingsworth to begin with. One could perceive this as a predaceous quality. For seven long years, Hester and her bastard child Pearl suffered great anguish. Their existence in this Puritan setting was almost intolerable. Yet they went about their lives and took each bit of happiness, though few, and made the most of it. It is the tendency of many to thrive on the failing and downfall of others; that is what transpired during this period. Possibly, her actions served as a catalyst for exploitation, but how she was perceived by her fellow man was not a significant factor in her decision not to expose her lover.

How does R. L. Stevenson create horror and suspense in the novel ‘Dr Jekyll and Mr Hyde?’ Essay

‘Dr Jekyll and Mr Hyde’ is a classic horror novel written by R. L. Stevenson. He was born in Edinburgh, Scotland in 1850. He grew up in Edinburgh which had two very different faces: the prosperous, middle-class new town and the ‘old black city’ with its poverty, disease and over crowding. This can be compared to the novel because of the duality of nature between Jekyll and Hyde. The novel would have had a different impact upon its original readers because at this time London was a divided city; there were two major extremes, the rich and the poor, and as Dr Jekyll and Mr Hyde portray both these extremes the novel is shown from the two ends of the divided London. Jekyll lives in a respectable area which has ‘an air of invitation’ and Hyde lives in ‘a sinister block of buildings.’ Also, in 1886, the readers of ‘Dr Jekyll and Mr Hyde’ would have interpreted the torments of Henry Jekyll as the traditional struggle between good and evil. The novel is about a respectable doctor, Dr Jekyll, who transforms himself into a savage murderer, Mr Hyde. A girl is ruthlessly trampled over by this vicious Mr Hyde and he writes a cheque for à ¯Ã‚ ¿Ã‚ ½100 compensation; however the cheque was signed by Dr Jekyll. Mr Utterson and Mr Enfield come across a door which reminds them of the savage murderer and Mr Utterson’s suspicions are aroused when he finds Hyde’s dead body inside the laboratory where Jekyll had locked himself in, inside here is a letter written by Dr Jekyll. Dr Lanyon dies and gives Utterson a letter which said that Jekyll was having trouble with the effects of the drugs. In the final chapter Utterson reads Jekyll’s confessions. The story of the novel is told through many different narrators, Enfield, Utterson, Lanyon and Jekyll all play a part in telling the story. Stevenson has used this technique of multiple perspectives to heighten the mystery and suspense of the story as this allows the reader to see more clearly into their characters and relationships. ‘Dr Jekyll and Mr Hyde’ is such a well known text that it is known by more people than those that have actually read it, this is because there were no less than four film versions appeared during 1920 and 1953. In chapter one Stevenson uses many devices to create horror and suspense. The title of this chapter ‘The Story of the Door’ adds secrecy and mystery as it is part of a mysterious house, the street is pleasant except from this shabby house. This strange and always locked door becomes a significant symbol of mystery as we do not know where it leads. The neglected door on the smart street is also concerned with the duality of nature theme. This door creates secrecy and suspense because it is always locked and you can only enter with a key, also the windows are always shut. At the start of this chapter we are immediately introduced to one of the main characters, Mr Utterson; he appears complex as there are contradictions in his character ‘lean, long, dusty, dreary and yet somehow loveable,’ this is the major theme of the chapter: duality of nature and it is a reoccurring theme throughout the novel and the narrator hints that he knows people of ill repute. The setting of most of the novel is at night or early hours in the morning; this creates an eerie atmosphere, and also suspense and mystery because it is rather odd why people are walking out at ‘three o’clock of a black winter morning.’ Whilst Enfield tells ‘a very odd story’ tension is created as he repeats ‘street after street’ and this highlights his isolation and produces tension as the reader can empathise with him if they have ever been in a dark, isolated situation before. In this chapter secrecy is an important theme; everyone has something to hide and so they are reluctant to ask questions suggesting they do not want to hear an answer. Stevenson creates horror in this chapter as the introduction of Mr Hyde, who ‘trampled calmly over the child’s body and left her screaming on the floor,’ is a horrific image. This is peculiar behaviour and the reader has maximum sympathy for the young girl. In addition, Hyde is not at all disturbed by the incident of ‘calmly’ hurting her. When he witnesses the incident, Mr Enfield, an unemotional man has a strong reaction about it, ‘sawbones turned sick and white with the desire to kill him.’ In the second chapter entitled ‘Search for Mr Hyde,’ the title builds up a sense of anticipation in the reader because it is like a mystery investigation – searching for something or someone that could be lost or on the run. The will in this chapter is exceptionally odd; it creates a sense of extreme mystery in the reader. This is because Dr Jekyll’s will states that all his possessions shall be passed on to Edward Hyde, this shows the reader that there is some association and connection between Jekyll and Hyde. However, what is even stranger is that he says if he has disappeared or had an unexplained absence for any period exceeding three calendar months, this shows the reader that he is suspecting something might happen to him and builds up a sense of anticipation and keeps the reader interested and want to read on. Stevenson is giving clues about what is going on and Utterson thinks that Hyde is blackmailing Jekyll. Hyde also has contradictions in his character, he is described and ‘timid and bold,’ this oxymoron suggests of the duality of his character. ‘He may grow impatient to inherit,’ this suggests that Utterson is worried about his friend Jekyll and thinks he could be in danger as he left all of his belongings to Hyde, and with Hyde’s monstrous reputation he may not want to wait for his inheritance. The chapter ends with the lawyer in very low spirits, he feels forced to confront the fact that he too has been responsible for certain wrongs which he has taken care to hide, and this all creates suspense and mystery. He suspects blackmail or murder. In chapter three, Jekyll shows respect and admiration for Utterson and he convinces Utterson of the need for absolute secrecy, Stevenson does this to heighten the suspense and keep the reader engrossed. Jekyll thinks that Lanyon is dismissed as ‘hide-bound pedant’ in his thoughts as they had an argument about scientific thinking. Jekyll believes that Lanyon is narrow-minded and conventional in thinking. Chapter four is set almost a year later and it is the most horrific chapter in the book. R.L. Stevenson makes it gruesome with disturbing details and it would be extremely shocking for Victorian readers. This is because in Victorian society there was such a large emphasis on manners and behaviour. This chapter is appalling and inhumane to the reader. The passage which describes Carew’s murder is macabre and distressing, ‘bones were audibly shattered,’ this clause is effective because it appeals to the senses and makes it sound more horrendous and abominable. It is odd that Carew gets brutally murdered like this since he appeared to be such a nice man. This passage also presents horrific details that Mr Hyde beat him with his power and strength. R.L. Stevenson creates more suspense and mystery and gives subtle hints that the murder could have something to do with the mystery of Jekyll and Hyde because it could have had something to do with the will. The description of the setting as being, ‘a district of some city in a nightmare,’ is a sinister description creating atmosphere and horror. The ever-present fog contributes to the atmosphere as it is gloomy and it also portrays secrecy as it can be used to ‘cover up’ things. A threatening atmosphere is created with the flickering of street lamps and the personification of the fog, for example ‘the fog still slept.’ In chapter five horror and suspense is created by the description of Jekyll as it contrasts with that of before, ‘Dr At Ease,’ however now he looks ‘deadly sick’ and is terrified. This shows the reader that his connection with Hyde is making him ill Jekyll has received a letter and this creates suspense and secrecy, he is unsure about whether to show it to the police and this creates mystery. The description of the city as being ‘drowned’ reinforces the air of impending doom and adds slight horror and suspense. Towards the end of the chapter Utterson is in utter disbelief that Dr Jekyll forged for a murderer, Stevenson uses the description, ‘And his blood ran cold in his veins,’ this creates horror and suspense because it must be something very bad that has happened for someone’s blood to appear to turn cold, and also it makes the reader wait in anticipation. At the end of the chapter a cloak of secrecy descends upon matters and a guest is sworn to secrecy. In chapter six Dr Jekyll begins to improve with the disappearance of Mr Hyde and he is being associated with good things, ‘charity, and religion.’ Dr Lanyon has had a shock, ‘as a look in the eye and quality of manner that seemed to testify some deep-seated terror of the mind,’ he is scared however it is not that he is scared about dieing but something else. This creates suspense and leaves a sense of anxiety in the reader. However when Lanyon’s face changes and he holds up a trembling hand the reader is led to believe that Lanyon’s decline has something to do with Jekyll. In chapter seven the incident which the two gentlemen witness informs the reader that Jekyll is suffering from something which he cannot control, this creates suspense because the reader will wonder what it is that he cannot control. The gentlemen’s ‘expression of such abject terror and despair, as froze the very blood of the two gentlemen below,’ shows the reader that this is a link between Jekyll and Hyde as the reaction of the gentlemen from Jekyll reminds us of the reaction of the gentlemen from Hyde. Chapter eight opens dramatically with the entrance of an unexpected Poole, who is Utterson’s butler and his appearance is altered by a shock. The title of this chapter ‘The Last Night’ makes the reader think that this could be the last night or someone or something, for example, Jekyll dieing or a secret being revealed. Suspense is added when it says, ‘crushing anticipation of calamity’ as they are just waiting for something bad to happen. In this chapter the reader is meant to think that Mr Hyde is in the room and that he has killed Jekyll for the will and so Mr Utterson’s predictions were correct, this adds suspense because the reader does not know for definite if it is him in the room and they want to find out. In the novel Hyde has always been described as animal, for example in chapter four, ‘with ape-like fury’ and also in chapter two, ‘hissing’ this is comparing him to a snake and snakes can be seen as evil. In Victorian London, when it was a divided city, the poor received no schooling and could not vote, the wealthy people were afraid of them and saw them as being like animals, Hyde is also described as an animal. In chapter eight, R.L. Stevenson portrays many clues to lead the reader to think that it is Hyde, ‘crying out like a rat,’ and also it says, ‘and this was more of a dwarf,’ as the reader we know that Jekyll is tall and Hyde is shorter. There was a ‘mask upon his face’ so this creates suspense as the reader wants to know who it is. R.L. Stevenson is building up a sense of foreboding and expectation as the reader will think the thing he is describing is Hyde, ‘London hummed solemnly all around; but nearer at hand, the stillness was only broken by the sound of a footfall moving to and fro along the cabinet floor,’ this creates suspense as the reader knows that something bad is going to happen. Stevenson uses descriptions which appeals to the reader’s senses and so you can imagine you were there. He uses the technique of authentication and the reader is made to feel as though they are involved on an intimate revelation of feelings and events as the plot of the book is revealed through diaries and letters. This makes the reader feel included and keeps them interested. In chapter nine, ‘Dr Lanyon’s narrative,’ the reader is about to discover the truth about what Dr Jekyll has been up to. Stevenson chose to set this chapter at midnight as it is the witching hour; this adds mystery and horror because of the time of night that it is set in. The novel is structured so that the mystery and suspense is built up right until the penultimate chapter, this chapter reveals Jekyll’s terrible secret. Up until this point the reader can only see Hyde through the eyes of the other characters and as the reader becomes drawn into the mystery of the novel it tells the reader important information about the characters. Stevenson chose midnight for the arrival of the strange messenger because it is known as the witching hour and Hyde is thought of as inhuman. Finally, in the last chapter, ‘Henry Jekyll’s Full Statement of the Case,’ the reader sees the end of the story from Jekyll’s point of view. Stevenson decided to end it in this way to create tension so that the reader would only read Jekyll’s side last and keep them in suspense. Dr Jekyll and Mr Hyde represent the two sides of good and evil, as Jekyll does ‘pious work’ and Hyde uses ‘blasphemies,’ both of these connecting with religion as it is an extremely important part of Victorian people’s life. It poses the question – which is more powerful good or evil? Stevenson makes evil prevail in the end because Jekyll is banished by Mr Hyde, however this could be Stevenson telling us that evil is stronger or because humans are weak-willed. His opinion of this could be shaped like this because of his background; he was brought up as a Calvinists and this emphasised that our desires are naturally evil, so this would mentally affect you as a child. To conclude, it would be impossible for the modern reader to read this novel as an unsuspecting Victorian might have done because people see things like Jekyll’s double identity in everyday life, on the television and read it more in books so they are aware of what could happen, however in Victorian times they did not have television and so the only place where they would see this is in books. All of the devices that Stevenson has used to create horror and suspense have a strong impact upon the book because he wanted to keep the readers in suspense for as long as possible and he tried to make them discover for themselves the ending by leaving a series of clues. Overall, I think this was an interesting book, at times I found it quite difficult and got a bit confused, however I soon picked up again. I think that Stevenson was clever in the way that he used multiple perspectives to heighten the suspense of the story and thought that it was a good novel. Finally, the novel has had such a large impact on language that it has become a saying now. The phrase ‘Jekyll and Hyde’ describes someone with a split personality as being nice and nasty.

Birth of Witricity Technology Essay

1. INTRODUCTION In this era of modernization, electricity has become the cup of life. A moment without electricity makes your thinking go dry. The major source of conventional form of electricity is through wires. The continuous research and development has brought forward a major breakthrough, which provides electricity without the medium of wires. This wonder baby is called Witricity. There are certain small but very useful discoveries made in history, which changed the world forever, Newton’s gravitational law, Watt’s steam engine, Thomson’s bulb and many more. But a renaissance occurred with the invention of Electromagnetic Waves by Maxwell. Sir Jagdish Chandra Bose successfully generated electromagnetic waves having wavelength in the range of 5mm to 25 mm. Thereafter an Italian scientist named Marconi succeeded in transmitting electromagnetic waves up to a distance of several miles. And with this there started a new era called WIRELESS TECHNOLOGY. Today, as we can see the word ‘wireless’ is common in day – to – day life. Wireless communication has made the world smaller. Almost each and everything is wireless or cordless. Cordless mouse, cordless keyboard, satellite  communication, mobiles, cordless microphones and headphones, wireless internet service i.e. WI-FI, etc. And these have definitely increased the standard of living. In fact it dates back to the 19th century, when Nikola Tesla used conduction-based systems instead of resonance magnetic fields to transfer wireless power. As it is in Radiative mode, most of the Power was wasted and has less efficiency. Further, in 2005, Dave Gerding coined the term WiTricity which is being used by the MIT researchers today. Moreover, we all are aware of the use of electromagnetic radiations which is quite well known for wireless transfer of information. In addition, lasers have also been used to transmit energy without wires. However, radio waves are not feasible for power transmissions because the nature of the radiation is such that it spreads across the place, resulting into a large amount of radiations being wasted. Witricity is based upon coupled resonant objects to transfer energy between objects without wires. The system consists of a Witricity transmitter, and devices which act as receivers. Like radio receivers, the devices must be in range of the transmitter. Witricity will ensure that the cell phones, laptops, iPods and other power thirsty devices get charged on their own, eliminating the need of plugging them in. Even better, because of Witricity some of the devices won’t require batteries to operate which is a boon for the users of these devices. HISTORY: In 1825 William Sturgeon invented the electromagnet, a conducting wire wrapped around an iron core. The principle of EM induction — that a changing magnetic field can induce an electrical current in an adjacent wire — was discovered by Michael Faraday in 1831. Combining these two discoveries, Nicholas Joseph Callan was the first to demonstrate the transmission and reception of electrical energy without wires. Callan’s 1836 induction coil apparatus consisted of two insulated coils called the primary and secondary windings both placed around a common iron core. A battery intermittently connected to the primary would ‘induce’ a voltage in the longer secondary causing a spark to jump across its free terminals. In an induction coil or electrical transformer, which can have either an iron core or an air core, the transmission of energy takes place by simple electromagnetic coupling through a process known as mutual induction. With  this method it is possible to transmit and receive energy over a considerable distance. However, to draw significant power in that way, the two inductors must be placed fairly close together. If resonant coupling is used, where inductors are tuned to a mutual frequency, significant power may be transmitted over a range of many meters. In 1864 James Clark Maxwell mathematically modeled the behavior of electromagnetic radiation. Some early work in the area of energy transmission via radio waves was done in 1888 by Heinrich Hertz who performed experiments that validated Maxwell’s mathematical model. Hertz’s apparatus for generating electromagnetic waves is generally acknowledged as the first radio transmitter. A few years later Guglielmo Marconi worked with a modified form of the Hertz-wave transmitter, the main improvement being the addition of an elevated conductor and a ground connection. Both of these elements can be traced back to the 1749 work of Benjamin Franklin and that of Mahlon Loomas in 1864. Nikola Tesla also invented radio transmission and reception but unlike Marconi, Tesla designed his own transmitter — one with power-processing capability some five orders-of-magnitude greater than those of its predecessors. He would use this same coupled-tuned-circuit oscillator to implement his conduction-based energy transmission method as well. Both of these no-cables methods employ a minimum of four tuned circuits, two at the transmitter and two at the receiver. As wireless technologies were being developed during the early 1900s, researchers further investigated these different transmission methods. The goal was simply to generate an effect locally and detect it at a distance. Around the same time, efforts began to power more significant loads than the high-resistance sensitive devices that were being used to simply detect the received energy. 2. EVOLUTION OF WITRICITY 2.1 INVENTORS OF WITRICITY The inventors of Witricity are the researchers from the team from Massachusetts Institute of Technology. They are the people who had coined the phrase of Witricity and this invention can change the way electricity is used today. With Witricity, the tangle of cables, plugs and charters that  normally clutter homes can be rid of. Prof. Marin Soljacic provided the inspiration for the experiment and invention of Witricity. It was while standing in the kitchen one night, that on staring at his mobile phone that he had thought it would be nice if his mobile phone would take care of its own charging instead of him having to periodically charge it. He then tried out his experiment using two coils of copper, where one was connected to a receiver, and the other to a transmitter. With the help of these two coils of copper, the inventors of Witricity managed to transmit power across seven feet through the air to instantly light up a light bulb. Though Witricity worked only distances up till 9 feet at its inception, the inventors believed that it was possible to charge a battery that was located at a distance of a few yards from the power source that was connected to the receiving coil. They state that it would be sufficient to place a source in each room to provide power to the whole house. 2.2. BIRTH OF WITRICITY TECHNOLOGY The experimental design consisted of two copper coils, each a self-resonant system. One of the coils, connected to an AC power supply, was the resonant source. The other coil, the resonant capture device, was connected to a 60 watt light bulb. The power source and capture device were suspended in mid-air with nylon thread, at distances that ranged from a few centimeters to over 2.5 meters (8.2 ft). Not only was the light bulb illuminated, but the theoretical predictions of high efficiency over distance were proven experimentally. By placing various objects between the source and capture device, the team demonstrated how the magnetic near field can transfer power through certain materials and around metallic obstacles. Thus Prof. Soljacic’s dream of finding a method to wirelessly connect mobile electric devices to the existing electric grid was realized. Witricity Corp. was soon launched to carry this technology forward from the MIT laboratories to commercial production. 2.3. FUNDAMENTALS OF WITRICITY TECHNOLOGY Witricity technology is transferring electric energy or power over distance  without wires with the basics of electricity and magnetism, and work our way up to the wireless technology. Electricity: The flow of electrons (current) through a conductor (like a wire), or charges through the atmosphere (like lightning).A convenient way for energy to get from one place to another! Magnetism: A fundamental force of nature, which causes certain types of materials to attract or repel each other Oscillating magnetic fields vary with time, and can be generated by alternating current (AC) flowing on a wire. The strength, direction, and extent of magnetic fields are often represented and visualized by drawings of the magnetic field lines. Fig.1 Magnetic Induction Electromagnetism: A term for the interdependence of time-varying electric and magnetic fields. For example, it turns out that an oscillating magnetic field produces an electric field and an oscillating electric field produces a magnetic field. Magnetic Induction: A loop or coil of conductive material like copper, carrying an Alternating current (AC), is a very efficient structure for generating or capturing magnetic field. If a conductive loop is connected to an AC power source, it will generate an oscillating magnetic field in the vicinity of the loop A second conducting loop, brought close enough to the first, may â€Å"capture† some portion of that oscillating magnetic field, which in turn, generates or induces an electric current in the second coil. The current generated in the second coil may be used to power devices. Energy/Power Coupling: Energy coupling occurs when an energy source has a means of transferring energy to another object. One simple example is a locomotive pulling a train car—the mechanical coupling between the two enables the locomotive to pull the train. Magnetic coupling occurs when the magnetic field of one object interacts with a second object and induces an electric current in or on that object. In this way, electric energy can be transferred from a power source to a powered device. Fig.2 Illustration showing resonance Resonance: Resonance can be thought of as the natural frequency at which energy can most efficiently be added to an oscillating system. A playground swing is an example of an oscillating system involving potential energy and kinetic energy. Resonant Magnetic Coupling: Magnetic coupling occurs when two objects exchange energy through their varying or oscillating magnetic fields. Resonant coupling occurs when the natural frequencies of the two objects are approximately the same. Fig.3 Illusration showing the working of WiTricity 3. HOW WITRICITY TECHNOLOGY IS DIFFERENT THAN OTHER TECHNOLOGIES. 3.1. TRADITIONAL MAGNETIC INDUCTION Witricity technology for power transfer appears to be traditional magnetic induction, such as is used in power transformers, where conductive coils transmit power to each other wirelessly, over very short distances. In a transformer, an electric current running in a sending coil (or â€Å"primary  winding†) induces another current in a receiving coil (or â€Å"secondary winding†). The two coils must be very close together, and may even overlap, but the coils do not make direct electrical contact with each other. However, the efficiency of the power exchange in traditional magnetic induction systems drops by orders of magnitude when the distance between the coils becomes larger than their sizes. In addition to electric transformers, other devices based on traditional magnetic induction include rechargeable electric toothbrushes, and inductive â€Å"charging pads† which require that the object being charged be placed directly on top of, or very close to, the base or pad supplying the power. The power exchange efficiency of some induction systems is improved by utilizing resonant circuits. These so called resonantly enhanced induction techniques are used in certain medical implants and high-frequency RFids. Witricity founding technical team was the first to discover that by specially designing the magnetic resonators, one could achieve strong coupling and highly efficient energy exchange over distances much larger than the size of the resonator coils, distances very large compared to traditional schemes. 3.2. WITRICITY TECHNOLOGY IS DIFFERENT THAN RADIATIVE POWER TRANSFER Witricity technology for power transfer is non-radiative and relies on near-field magnetic coupling. Many other techniques for wireless power transfer rely on radiative techniques, either broadcasted or narrow beam (directed radiation) transmission of radio, or light waves. Broadcasted radiation of radio frequency energy is commonly used for wireless information transfer because information can be transmitted over a wide area to multiple users. The power received by each radio or wireless receiver is miniscule, and must be amplified in a receiving unit using an external power supply. Because the vast majority of radiated power is wasted into free space, radio transmission is considered to be an inefficient means of power transfer. Note that while more energy can be supplied to the receiver by â€Å"cranking up the power† of the transmitters in these systems, such high power levels may pose a safety hazard and may interfere with other  radiofrequency devices. Directed radiation†, using highly directional antennas, is another means of using radio transmission to beam energy from a source to a receiver. However, directed radiation—in particular microwave radiation—may interact strongly with living organisms and certain metallic objects. Such energy transfer methods may pose safety hazards to people or objects that obstruct the line-of-sight between the transmitter and receiver. These limitations make directed radio transmission impractical for delivering substantial levels of wireless power in a typical consumer, commercial, or industrial application. In fact, defense researchers are exploring the use of directed energy systems to deliver lethal doses of power to targets in space and on the battlefield. 3.3. WITRICITY TECHNOLOGY IS DIFFERENT THAN MAGNETIC RESONANCE IMAGING (MRI) MRI machines use â€Å"magnetic resonance imaging† to produce diagnostic images of soft tissue. Many people assume that Witricity â€Å"Resonant Magnetic Coupling† must be similar to magnetic resonance imaging (MRI) technology, however, the technologies are similar in name only.MRI is, as its name suggests, a technology for using magnetism as a basis for diagnostic imaging of soft tissue in the human body. It utilizes a strong DC magnet to orient the magnetic fields of atoms within tissues, and radio frequency fields to manipulate those atoms in a selective way, so that tissues and structures can be imaged clearly. The â€Å"resonance† referred to in â€Å"MRI† refers to the resonance of atomic structures. MRI is not considered to be a method for wireless power transfer. 4. STRIKING FEATURES OF WITRICITY 4.1. HIGHLY RESONANT STRONG COUPLING PROVIDES HIGH EFFICIENCY OVER DISTANCE Witricity mode of wireless power transfer is highly efficient over distances ranging from centimeters to several meters. Efficiency may be defined as the amount of usable electrical energy that is available to the device being  powered, divided by the amount of energy that is drawn by the Witricity source. In many applications, efficiency can exceed 90%. And Witricity sources only transfer energy when it is needed. When a Witricity powered device no longer needs to capture additional energy, the Witricity power source will automatically reduce its power consumption to a power saving â€Å"idle† state. 4.2. ENERGY TRANSFER VIA MAGNETIC NEAR FIELD CAN PENETRATE AND WRAP AROUND OBSTACLES The magnetic near field has several properties that make it an excellent means of transferring energy in atypical consumer, commercial, or industrial environment. Most common building and furnishing materials, such as wood, gypsum wall board, plastics, textiles, glass, brick, and concrete are essentially â€Å"transparent† to magnetic fields—enabling Witricity technology to efficiently transfer power through them. In addition, the magnetic near field has the ability to â€Å"wrap around† many metallic obstacles that might otherwise block the magnetic fields.WiTricity applications engineering team will work with you to address the materials and environmental factors that may influence wireless energy transfer in your application 4.3. NON-RADIATIVE ENERGY TRANSFER IS SAFE FOR PEOPLE AND ANIMALS Witricity technology is a non-radiative mode of energy transfer, relying instead on the magnetic near field. Magnetic fields interact very weakly with biological organisms—people and animals—and are scientifically regarded to be safe. Professor Sir John Pendry of Imperial College London, a world renowned physicist, explains:â€Å"The body really responds strongly to electric fields, which is why you can cook a chicken in a microwave .But it doesn’t respond to magnetic fields. As far as we know the body has almost zero response to magnetic fields in terms of the amount of power it absorbs.† Evidence of the safety of magnetic fields is illustrated by the widespread acceptance and safety of household magnetic induction cook tops. Through proprietary design of the Witricity source, electric fields are almost completely contained within the source. This design results in levels  of electric and magnetic fields which fall well within regulatory guidelines. Thus Witricity technology doesn’t give rise to radio frequency emissions that interfere with other electronic devices, and is not a source of electric and magnetic field levels that pose a risk to people or animals. Limits for human exposure to magnetic fields are set by regulatory bodies such as the FCC, ICNIRP, and are based on broad scientific and medical consensus. Witricity technology is being developed to be fully compliant with applicable regulations regarding magnetic fields and electromagnetic radiation. 4.4. SCALABLE DESIGN ENABLES SOLUTIONS FROM MILL WATTS TO KILOWATTS Witricity systems can be designed to handle a broad range of power levels. The benefits of highly efficient energy transfer over distance can be achieved at power levels ranging from mill watts to several kilowatts. This enables Witricity technology to be used in applications as diverse as powering a wireless mouse or keyboard (mill watts) to recharging an electric passenger Vehicle (kilowatts).Witricity technology operates in a â€Å"load following† mode, transferring only as much energy as the powered device requires. 4.5. FLEXIBLE GEOMETRY ALLOWS WITRICITY DEVICES TO BE EMBEDDED INTO OEM PRODUCTS Witricity technology is being designed so that it can be easily embedded into a wide variety of products and Systems. The physics of resonant magnetic coupling enables Witricity engineers to design power sources and devices of varying shapes and sizes, to match both the packaging requirements and the power transfer requirements in a given OEM application. Witricity has designed power capture devices compact enough to fit into a cell phone 5. ADVANTAGES & DISADVANTAGES 5.1 ADVANTAGES No need of line of sight – In witricity power transmission there is no need of line of sight between transmitter and receiver. That is power transmission can be possible if there is any obstructions like wood, metal, or other devices were placed in between the transmitter and receiver. There’s no need of power cables and batteries – Witricity replaces the use of power cables and batteries. Does not interfere with radio waves and overall Wastage of power is small – Electromagnetic waves would tunnel, they would not propagate through air to be absorbed or dissipated. So the wastage is small. Negative health implications – By the use of resonant coupling, wave lengths produced are far lower and thus make it harmless. Highly efficient than electromagnetic induction – Electromagnetic induction system can be used for wireless energy transfer only if the primary and secondary are in very close proximity. Resonant induction system is one million times as efficient as electromagnetic induction system. Its less costly – The components of transmitter and receivers are cheaper. So this system is less costly. 5.2. DISADVANTAGES Wireless power transmission can be possible only in few meters. Efficiency is only about 40%.As witricity is in development stage, lot of work is done for improving the efficiency and distance between transmitter and receiver. 6. WITRICITY APPLICATIONS Witricity wireless power transfer technology can be applied in a wide variety of applications and environments. The ability of our technology to transfer power safely, efficiently, and over distance can improve products by making them more convenient, reliable and environmentally friendly Witricity technology can be used to provide: 6.1. DIRECT WIRELESS POWER When all the power a device needs is provided wirelessly, and no batteries are required. This mode is for a device that is always used within range of  its Witricity power source. 6.2. AUTOMATIC WIRELESS CHARGING When a device with rechargeable batteries charges itself while still in use or at rest, without requiring a power cord or battery replacement. This mode is for a mobile device that may be used both in and out of range of its Witricity power source. Witricity technology is designed for Original Equipment Manufacturers (OEM’s) to embed directly in their products and systems. Witricity technology will make your products: More Convenient: 1) No manual recharging or changing batteries. 2) Eliminate unsightly, unwieldy and costly power cords. More Reliable: 3) Never run out of battery power. 4) Reduce product failure rates by fixing the ‘weakest link’: flexing wiring and mechanical interconnects. 5) More Environmentally Friendly: 6) Reduce use of disposable batteries. 7) Use efficient electric ‘grid power’ directly instead of inefficient battery charging 6.3. CONSUMER ELECTRONICS Automatic wireless charging of mobile electronics (phones, laptops, game controllers, etc.) in home, car, office, Wi-Fi hotspots while devices are in use and mobile. Fig.4 Electronic devices that can be powered up using Witricity. Direct wireless powering of stationary devices (flat screen TV’s, digital picture frames, home theater accessories, wireless loud speakers, etc.) †¦ eliminating expensive custom wiring, unsightly cables and â€Å"wall-wart† power  supplies. Direct wireless powering of desktop PC peripherals: wireless mouse, keyboard, printer, speakers, display, etc†¦ eliminating disposable batteries and awkward cabling. Industrial: Direct wireless power and communication interconnections across rotating and moving â€Å"joints† (robots, packaging machinery, assembly machinery, machine tools) †¦ eliminating costly and failure-prone wiring. Direct wireless power and communication interconnections at points of use in harsh environments (drilling, mining, underwater, etc.) where it is impractical or impossible to run wires. 6.4. TRANSPORTATION Automatic wireless charging for future hybrid and all-electric passenger and commercial vehicles, at home, in parking garages, at fleet depots, and at remote kiosks. Direct wireless power interconnections to replace costly vehicle wiring harnesses and slip rings. 6.5. OTHER APPLICATIONS Direct wireless power interconnections and automatic wireless charging for implantable medical devices (ventricular assist devices, pacemaker, defibrillator, etc.) Automatic wireless charging and for high tech military systems (battery powered mobile devices, covert sensors, unmanned mobile robots and aircraft, Direct wireless powering and automatic wireless charging of smart cards. Direct wireless powering and automatic wireless charging of consumer appliances, mobile robots, etc. Fig.5 Illustration showing Witricity 7. CONCLUSION Witricity engineering is often a non-radiative method of power switch, relying as an alternative within the magnetic close to field. Magnetic fields work together extremely weakly with organic organisms—people and  animals—and are scientifically considered to get safe. WiTricity merchandise are becoming designed to comply with applicable security requirements and regulations. Therefore witricity is know-how safe. Witricity can switch energy is dependent to the supply and receivers. if it really is comparatively shut to one yet another, and may exceed 95%.Efficiency is mostly determined through the length amongst the ability supply and seize machine, about the other hand, the form may perhaps affect the efficiency. it may switch the facility by means of walls also. Conventional magnetic induction calls for that the ability resource and seize unit be quite near to one a lot more typically inside millimeters to exchange ability efficiently. Witricity Technology is depending on sharply resonant sturdy coupling, and is particularly capable to exchange strength effectively even in the event the distances amongst the ability supply and seize gadget are many occasions the dimension of your products themselves. 8. FUTURE SCOPE MIT’s Witricity is only 40 to 45% efficient and according to Soljacic, they have to be twice as efficient to compete with the traditional chemical batteries. The team’s next aim is to get a robotic vacuum or a laptop working, charging devices placed anywhere in the room and even robots on factory floors .The researchers are also currently working on the health issues related to this concept and have said that in another three to five years time, they will come up with a Witricity system for commercial use. TROY, Mich. — Delphi Automotive has reached an agreement with Witricity Corp., a wireless energy transfer technology provider, to develop automatic wireless charging products for hybrid and electric vehicles. The collaboration between the two companies will help establish a global infrastructure of safe and convenient charging options for consumer and commercial electric vehicles. â€Å"This is groundbreaking technology that could enable automotive manufacture rs to integrate wireless charging directly into the design of their hybrid and electric vehicles,† said Randy Sumner, director, global hybrid vehicle development, Delphi Packard Electrical/Electronic Architecture. â€Å"Delphi’s expertise in global engineering, validation and manufacturing coupled with Witricity patented  wireless energy transfer technology uniquely positions us to make wireless charging of electric vehicles a reality.† Sumner said the wireless charging system would involve no plugs or charging cords. Drivers would simply park their electric vehicle over a wireless energy source that sits on the garage floor, or is embedded in a paved parking spot. The system will automatically transfer power to the battery charger on the vehicle. According to Eric Giler, chief executive officer, Witricity, their wireless system can already transfer over 3,300 watts — enough to fully charge an electric car at the same rate as most residential plug-in chargers. â€Å"Charging an electric car should be as easy as parking it in your garage or parking spot,† Giler said. â€Å"Witricity high efficiency wireless energy transfer technology is ideally suited for electric vehicle charging, and our partnership with Delphi will help to quickly get this technology deployed in OEM vehicles and infrastructure projects worldwide.† Delphi can bridge the gap between the laboratory and the highway by providing E/E systems integration expertise, a global manufacturing and engineering footprint and high-voltage, high-power components specifically engineered for the hybrid and electric vehicles of today and tomorrow,† Sumner said. Wireless charging technology will need to co-exist with plug-in charging solutions, Sumner added, so that electric vehicle drivers have the ability to charge their vehicle when they are away from their wireless charging source. Delphi also makes a Portable Electric Vehicle Charger that fits conveniently in the trunk of an electric vehicle. The user-friendly, UL-listed charging system plugs into any standard 120-volt outlet to enable safe electric vehicle battery charging at home or away. The charging unit can also be integrated into stationary charging applications. Fig.6 Delphi’s solution for charging the cars using witricity technology REFERENCES [1] Change your electric vehicle wirelessly with Fulton innovations eCoupled technology by Yuka Yoneda. [2] MIT Witricity Not So Original After all by Gary Peterson. [3] MIT team experimentally demonstrates wireless power transfer, potentially useful for powering laptops, cell phones without cords, Franklin Hadley, Institute for Soldier Nanotechnologies. [4] www.witricity.com, Wireless Electricity Delivered Over Distance. [5] MIT Wizards Zap Electricity Through The Air by Katherine Noyes. [6] MIT Makes Breakthrough in Wireless Electricity by Karen M.Cheung.