OPTICAL ILLUSIONS The Art of Deception of Perception Essay

â€Å"Our senses can be trusted, but they can be easily fooled†(Aristotle 1) What is an optical illusion? For most of us, the term brings to mind images of a unique arrangement of vibrant contrasting colors, and geometric shapes that deceive the eye, and violates our expectations in a myriad of ways â€Å"about representation, about shape, about color, and so forth†(Sekel). Figure 1 is one common example of this definition. In this image the circles appear to be expanding when in fact the image is static. Another example of an optical illusion would be Claude Monet’s painting Rue Montorgueil in Paris, Festival of 30 June 1878(Figure 3), which illustrates a scene of a festive street, but most people do not†¦show more content†¦First light enters the eye and is refracted by the cornea through the pupil, which is â€Å"the circular opening in the centre of the iris†(Eye Anatomy 1).The light then travels through the lens - located right behind the iris- which completes refraction by â€Å"fine-focusing† the light onto the thin layer of tissue which lines the inside of the eye called the retina. In the retina light is converted into electrical impulses which are carried via optic nerves to the brain -as shown in Figure 3. The brain then interprets these impulses (Refractive Surgery 1). The visual information from the eyes initially enters the brain at an area of the cerebral cortex known as the primary visual cortex (V1) as shown in Figure 4, where there are groups of cells which â€Å"break down these stimuli and respond to them†( MIT Research- Brain Processing of Visual Information 2). The primary visual cortex is not the only area of the brain devoted to visual information. There are many cell clusters in various parts of the brain that â€Å"cooperate to process different components of visual information† including color, movement, shape, size, and many other components ( MIT Research- Brain Processing of Visual Information 2). Several case studies have suggested that â€Å"the brain divides a visual scene into sub-dimensions such as color, depth, movement and form and works on each aspect simultaneously†Show MoreRelatedExperience, Perceive And Interact With The Sites Through Our Senses And Body4205 Words   |  17 Pagespresenting haptic and optic as binaries, but as modes of perception that switch and synergise with one other to ‘restore a flow between the haptic and the optical’ (Marks, 2002: xiii). Fig 5.5.1.4. Concrete texture. Maaya (2012) by Gauri Sharma Tripathy, Shivani Sethia, Seeta Patel and Yamuna Devi. Performer: Ash Mukherjee. Photo: Catherine Bebbington. Geographer Yi-Fu Tuan connects architecture with the senses and comments that: ‘Art and architecture seek visibility. They are attempts to giveRead MoreInfluence of Hollywood films on the moral Values of Nigerian youths5511 Words   |  23 Pageslifestyle patterns, fashion, etc. Among all media, films play a major role in affecting the thinking pattern of the society (Evra, 1990). Films also referred to as motion pictures, involves projecting a series of images into the screen to create an illusion of motion. It is one of the most popular forms of entertainment, enabling people to immerse in an imaginary world for a short period (Olaleye, 2007). In recent times, subtitles that translate different languages have increased appeal of films,Read MoreLogical Reasoning189930 Words   |  760 Pages.... 220 Exercises .......................................................................................................................................... 220 CHAPTER 7 Defending Against Deception ............................................................................. 226 Deception Is All Around Us ............................................................................................................. 227 Exaggeration and Lying ..........................................Read MoreCrossing the Chasm76808 Words   |  308 Pagesof HarperCollins Publishers. 10 9 8 7 6 5 4 3 2 1 To Marie Contents PREFACE TO THE REVISED EDITION FOREWORD ACKNOWLEDGMENTS PART I Discovering the Chasm INTRODUCTION If Bill Gates Can Be a Billionaire 1 High-Tech Marketing Illusion 2 High-Tech Marketing Enlightenment PART II Crossing the Chasm 3 The D-Day Analogy v vi Contents 4 Target the Point of Attack 5 Assemble the Invasion Force 6 Define the Battle 7 Launch the Invasion CONCLUSION Read MoreProject Mgmt296381 Words   |  1186 Pagesand techniques 6.1 Define activities 9.1.2. Responsibility matrixes 10.1 Communication planning (.2.3.4) [App. G-4] Chapter 12 Outsourcing 12.1.1 Procurement requirements [G.8] 12.1.2.3 Contract types 9.4.2.3 Conflict management 12.2.7 The art of negotiating 12.2.3.5 Change requests Chapter 13 Monitoring Progress Chapter 5 Estimating Times and Costs 6.4 Activity duration estimates (.3) 6.4.2 Estimating tools (.1.3.4) 6.3.1 Identifying resources 7.1 Activity cost estimates (

The Theories Of The Theory Of Evolution - 1802 Words

Eighty-seven percent of American scientists believe that a series of random chemical and biological events produced mankind. However, the philosophical theory of evolution has no solid evidence, whereas creation can be proven. Science is supposed to be based on observation, right? The best theories satisfy the test of experimentation. No one can test if evolution happened. Non one can prove that evolution actually happened. But what evidence can we place against evolution? In 1859, Charles Darwin published On the Origin of Species, introducing the theory of evolution. One hundred and fifty-six years later, scientists still accept this senseless philosophy. House Majority Leader Tom DeLay states, â€Å"Our school systems teach the children that they are nothing but glorified apes who are evolutionized out of some primordial soup† (Snyder). Schools worldwide have presented exactly this to the young, impressionable minds of your future doctors, engineers, scientists, and presiden ts. They assure us that if we give a small amount of mud enough time it can, by itself, bring about the art of da Vinci, the plays of Shakespeare, the music of Mozart, and the brilliant mind of Einstein. I would like you to take just a moment and think about this: For the smallest free-living thing to duplicate itself would need 239 separate protein molecules, each of which require at least 410 amino acids. The probability that the first protein molecules would create all its amino acids into left handShow MoreRelatedThe Theory Of Evolution And Evolution1685 Words   |  7 Pages â€Æ' Since Charles Darwin suggested the theory of evolution by natural selection in this best-known work, On the Origin of Species, controversy has followed. As a (computer) scientist, this student has no personal problem with the theory of evolution. However, since the debate of whether or not evolution actually exists is still alive and well today, a brief exploration of the arguments against is not only interesting, but also increasingly necessary. Why is there such disparity over this topic overRead MoreEvolution And Theory Of Evolution2859 Words   |  12 Pages come up with a variety of theories to answer the age old question, â€Å"Where do we come from?† The theory of evolution is just one of the many theories written over the centuries that attempts to answer this question; however, it holds the distinction of being the only theory accepted as scientifically true in today’s world. This paper will discuss the theory of evolution in detail; topics addressed include defining the theory of evolution and explaining how the theory has evolved over time, as wellRead MoreThe Theory of Evolution754 Words   |  4 PagesRunning Head: EVOLUTION The Theory of Evolution By Student’s Name Name of University Charles Darwin’s theory of evolution has been a topic of controversy since it was promulgated in the late 1800s. Nonetheless, its tenets remain strong, with many modern day scientists making discoveries that support Darwin’s theories of evolution, natural selection, and survival of the fittest. In The Origin of Species, Darwin calls the process of natural selection or survival of the fittest, the preservationRead MoreThe Theories Of The And Evolution756 Words   |  4 Pagesexplained the concept of growth and evolution, Freud theorized explanations for our suppressed cognition, Archimedes ran out of a bathtub yelling Eureka once he established the concept of density, and many other renowned scientists provided substantial theories to explain common associations within everyday life. These brilliant researchers gave reason to the term â€Å"why†. They provoked curiosity, established ideologies, and generated scientific laws that define logic. Evolution, adaptation, and developmentRead MoreEvolution Of Management Theory And Management Theories2135 Words   |  9 PagesEvolution of Management Theory Jamal Roberts Pasco Hernando State College Evolution of Management Theory In reality, every person in a management position handles the way that they do their job differently. Management is one of the most important parts of an organization, if not the most important. However, the development of management in organizations has changed dramatically from the late eighteenth century to now. In the eighteenth century, managers relied on power and setting strictRead MoreTheory of Evolution Essay1359 Words   |  6 Pagesso there was no need for evolution; hence, there was no sign of evolution from the beginning. Since sin came into the world, man has been deceived into thinking there is evolution. We are not talking about the theory of evolution that says man started from an amoeba or as an ape and eventually began to walk upright; not that evolution, but evolution in the sense of development. There are developments in the earth and therefore it can be considered as a form of evolution, but truly would it be classifiedRead MoreThe Theory of Evolution Essay5 53 Words   |  3 PagesBiological evolution is the name for the changes in gene frequency in a population of a species from generation to generation. Evolution offers explanation to why species genetically change over years and the diversity of life on Earth. Although it is generally accepted by the scientific community, Charles Darwin’s theory of evolution has been studied and debated for several decades. In 1859, Darwin published On The Origin of Species, which introduced the idea of evolutionary thought which he supportedRead MoreThe Theory Of Biological Evolution1192 Words   |  5 PagesSocial Darwinism is defined as the application of the theory of biological evolution to human affairs. It was used to justify and clarify many notions of nationalism and imperialism. Science played a huge role in the coming about of this new discovery but in reality, the society shaped the science of what it was about. Charles Darwin was the root of new era and was profound to come up with the theory of evolution. His theory had become one the fundamental unifying principles of modern biology andRead MoreEvolution Of A Evolutionary Theory1500 Words   |  6 PagesEvolution is descent with modification, a phrase Darwin used in proposing the at Earth’s many species are descendants of ancestral species that were different The power of evolution as a unifying theory is its ability to explain and connect a vast array of observations about the living world. Aristotle believed that life forms could be arranged on a scale of increasing complexity. Each form of life, perfect and permanent, had its allotted space. Darwin argued that classification should be based onRead MoreEvolution : Fact And Theory1649 Words   |  7 PagesEvolution What is evolution? Is it a theory or is it based on facts? Many people think that it is both a fact and a theory. We all seek to find an explanation for life as we know it. We all want to understand how it all began. Creationist believes that the world was created in six days by a supreme being referred to as God. Many scientists report that there is plenty of evidence to prove that all living things have evolved, and reference examples such as evidence from fossils that indicates

Explain Externalities and Public Gods Free Essays

With the aid of examples explain the terms: i) Externality ii) Public Good Externality Externalities, or transaction  spillovers, arise when a third party who is not involved in the consumption of a product incur certain costs and benefits that are not compensated for by the generators of those externalities. They exist due to the price system’s (The Invisible Hand) inability to deal with products that have no market or price, such as clean air, peace, quiet, pollution and more. In a broader sense, externalities involve interdependence of utility due to the fact that one person’s action will affect the welfare of another. We will write a custom essay sample on Explain Externalities and Public Gods or any similar topic only for you Order Now Externalities can be classified into two types: positive externalities and negative externalities. Positive externalities exist when an externality-generating activity raises the production or utility of the third party receiving these externalities. These economic activities provide incidental benefits to others for whom they aren’t specifically intended. Negative externalities exist when an externality-generating activity decreases the production or utility of the third party receiving these externalities. These economic activities impose a cost onto others for whom they aren’t specifically intended. The undesirable effects on the allocation of resources by an externality can be explained by using the concept of Marginal Social Cost (MSC). In Economics, the MSC is defined as the sum of Marginal Private Cost (MPC), the marginal cost caused by an activity that is compensated for by the generators, and Marginal External Cost, which is the share of external effects borne by the rest. When a firm’s activities generate negative externalities, its MSC is greater than its MPC. In equilibrium, the Marginal Private Benefit (MPB) will be equal to the firm’s MPC, and hence the MPB MSC. Hence, the final output for the consumer yields less to the society than what it costs to society. Thus, it can be deduced that production is inefficient and that these externalities can be reduced if the production of that particular product is reduced. For example, the construction of roads to facilitate the transport of goods for a factory that produces staplers will benefit residents in that area because they now have greater road accessibility. This is said to be the positive externality arising from this economic activity. On the flip side, this same factory that instigated the construction of roads may discharge a toxic amount of by-products such as soot and toxins into the air and rivers, hence greatly reducing the quality of air and water in that area. This is because factory owners wish to maximize profits and hence will only take into account their MPC and ignore the wider social costs of their activities – MSC will be greater than MPC. In conclusion, it can be said that when positive externalities exist, the MSB MPB, and when negative externalities exist, the MSC MPC. Public Good In economic theory, a good is a tangible or intangible item that gives utility to people when consumed. Goods can be classified into free and economic goods. The former entails no opportunity cost to the consumer, meaning that no one is made worse off by the consumption of a free good. Examples are desert sand, air and seawater. An economic good, on the other hand, entails an opportunity cost. This is because some other good has to be forgone in order to produce an economic good. The root of this opportunity cost is scarcity – a situation in which unlimited human wants exceed the lack of resources that we have in order to meet that demand. Economic goods can then be further subdivided into two: public and private goods. Public goods are collectively consumed and the market may simply not supply them. Examples of public goods are such as defense of the country (a police force and army), a fire brigade, street lighting, or lighthouses. The market system does not work well in this area. One of the jobs of government, both central and local, is to supply public goods or services that are needed but otherwise would not be made available by the market. Some goods are â€Å"semi-public goods†, â€Å"quasi public goods† or â€Å"collective consumption goods†, for instance roads. These are often supplied by the state, but in principle they can be privately supplied, and sometimes are. Examples include the British Toll Roads in the Nineteenth Century or the peage motorways in France today; when you use them, you pay. In some countries, such as Thailand, the fire brigade falls in this area. People insure with a private fire brigade and call them when the house is burning. If you are not insured and you still call them, the market swings into action and they negotiate a rate on the spot for putting out the fire – given the urgency of the event, the demand by the burning house owner is highly inelastic and the price can be very high. There are two key characteristics of a public good. Firstly, public goods are non-excludable, meaning that the producer is unable to separate the non-paying consumers from the paying consumers that are benefitting from the good. As a result, the payer will eventually refuse to pay for the good too. Consequently, markets will refuse to produce public goods and this will result in a market failure. For example, if an entrepreneur stages a fireworks show, people can watch the show from their windows or backyards. Because the entrepreneur cannot charge a fee for consumption, the fireworks show may go unproduced, even if demand for the show is strong. To illustrate the public good’s inability to exclude, here’s an example: In the provision of national defense, if one citizen of defended, so are the rest of the citizens. Secondly, public goods are non-exhaustible. This means that the use of the good by one person does not reduce the amount available to others. Hence, rivalry does not exist in the consumption of this product and another consumer will incur no opportunity cost. For example, the exchange of  MP3  music files on the Internet. The use of these files by any one person does not restrict the use by anyone else and there is little effective control over the exchange of these music files and photo files. In a nutshell, public goods are economic goods that are non-excludable and non-exhaustible, and can be subdivided into public goods and â€Å"semi† public goods. How to cite Explain Externalities and Public Gods, Papers Explain Externalities and Public Gods Free Essays With the aid of examples explain the terms: i) Externality ii) Public Good Externality Externalities, or transaction  spillovers, arise when a third party who is not involved in the consumption of a product incur certain costs and benefits that are not compensated for by the generators of those externalities. They exist due to the price system’s (The Invisible Hand) inability to deal with products that have no market or price, such as clean air, peace, quiet, pollution and more. In a broader sense, externalities involve interdependence of utility due to the fact that one person’s action will affect the welfare of another. We will write a custom essay sample on Explain Externalities and Public Gods or any similar topic only for you Order Now Externalities can be classified into two types: positive externalities and negative externalities. Positive externalities exist when an externality-generating activity raises the production or utility of the third party receiving these externalities. These economic activities provide incidental benefits to others for whom they aren’t specifically intended. Negative externalities exist when an externality-generating activity decreases the production or utility of the third party receiving these externalities. These economic activities impose a cost onto others for whom they aren’t specifically intended. The undesirable effects on the allocation of resources by an externality can be explained by using the concept of Marginal Social Cost (MSC). In Economics, the MSC is defined as the sum of Marginal Private Cost (MPC), the marginal cost caused by an activity that is compensated for by the generators, and Marginal External Cost, which is the share of external effects borne by the rest. When a firm’s activities generate negative externalities, its MSC is greater than its MPC. In equilibrium, the Marginal Private Benefit (MPB) will be equal to the firm’s MPC, and hence the MPB MSC. Hence, the final output for the consumer yields less to the society than what it costs to society. Thus, it can be deduced that production is inefficient and that these externalities can be reduced if the production of that particular product is reduced. For example, the construction of roads to facilitate the transport of goods for a factory that produces staplers will benefit residents in that area because they now have greater road accessibility. This is said to be the positive externality arising from this economic activity. On the flip side, this same factory that instigated the construction of roads may discharge a toxic amount of by-products such as soot and toxins into the air and rivers, hence greatly reducing the quality of air and water in that area. This is because factory owners wish to maximize profits and hence will only take into account their MPC and ignore the wider social costs of their activities – MSC will be greater than MPC. In conclusion, it can be said that when positive externalities exist, the MSB MPB, and when negative externalities exist, the MSC MPC. Public Good In economic theory, a good is a tangible or intangible item that gives utility to people when consumed. Goods can be classified into free and economic goods. The former entails no opportunity cost to the consumer, meaning that no one is made worse off by the consumption of a free good. Examples are desert sand, air and seawater. An economic good, on the other hand, entails an opportunity cost. This is because some other good has to be forgone in order to produce an economic good. The root of this opportunity cost is scarcity – a situation in which unlimited human wants exceed the lack of resources that we have in order to meet that demand. Economic goods can then be further subdivided into two: public and private goods. Public goods are collectively consumed and the market may simply not supply them. Examples of public goods are such as defense of the country (a police force and army), a fire brigade, street lighting, or lighthouses. The market system does not work well in this area. One of the jobs of government, both central and local, is to supply public goods or services that are needed but otherwise would not be made available by the market. Some goods are â€Å"semi-public goods†, â€Å"quasi public goods† or â€Å"collective consumption goods†, for instance roads. These are often supplied by the state, but in principle they can be privately supplied, and sometimes are. Examples include the British Toll Roads in the Nineteenth Century or the peage motorways in France today; when you use them, you pay. In some countries, such as Thailand, the fire brigade falls in this area. People insure with a private fire brigade and call them when the house is burning. If you are not insured and you still call them, the market swings into action and they negotiate a rate on the spot for putting out the fire – given the urgency of the event, the demand by the burning house owner is highly inelastic and the price can be very high. There are two key characteristics of a public good. Firstly, public goods are non-excludable, meaning that the producer is unable to separate the non-paying consumers from the paying consumers that are benefitting from the good. As a result, the payer will eventually refuse to pay for the good too. Consequently, markets will refuse to produce public goods and this will result in a market failure. For example, if an entrepreneur stages a fireworks show, people can watch the show from their windows or backyards. Because the entrepreneur cannot charge a fee for consumption, the fireworks show may go unproduced, even if demand for the show is strong. To illustrate the public good’s inability to exclude, here’s an example: In the provision of national defense, if one citizen of defended, so are the rest of the citizens. Secondly, public goods are non-exhaustible. This means that the use of the good by one person does not reduce the amount available to others. Hence, rivalry does not exist in the consumption of this product and another consumer will incur no opportunity cost. For example, the exchange of  MP3  music files on the Internet. The use of these files by any one person does not restrict the use by anyone else and there is little effective control over the exchange of these music files and photo files. In a nutshell, public goods are economic goods that are non-excludable and non-exhaustible, and can be subdivided into public goods and â€Å"semi† public goods. How to cite Explain Externalities and Public Gods, Essay examples

Beowulf the hero Essay Example For Students

Beowulf the hero Essay The Anglo-Saxon Hero as defined by the Battles of BeowulfWithin the tale of Beowulf four character traits can be found which define the Anglo Saxon Hero.The first is loyalty, as demonstrated by the relationship between Lord and thane. According to page 23 of the Beowulf introduction, a relationship based less on subordination of one mans will to another than on mutual trust and respect. The second and third characteristics are strength and courage. The importance of these specific traits to the Anglo-Saxon people is clearly presented during the reciting of Sigemunds tale within Heorot. As the song states, He was adventurer most famous, far and wide through the nations, for deed of courage he had prospered from that before, the protector of warriors after the war-making of Heremod had come to an end, his strength and his courage (38). The final piece which comprises the Anglo-Saxon hero is the notion of fame. The only after life a warrior could ever aspire to have was immortality thro ugh fame. One again this is explained by the introduction to the story, Beowulfs chief reward is pagan immortality the memory in the minds of later generations of a heros heroic actions (24-25). By understanding what defines a hero it is a simple matter to comprehend why Beowulf is considered by some to be the greatest of all. He posses unfaltering loyalty to his king and allies, and save for his final battle his thanes show the same devotion to him. His strength is unparalleled, as he is able to defeat each of his opponents and perform feats of unmatched endurance. Beowulfs courage, though motivated primarily by his own notion of fate, is, none the less, unwavering. And as a hero he achieved his desire for immortality through the poem itself. Each of the four heroic traits can be identified within the three battles in which Beowulf participates: His battle with Grendel, his undersea struggle with the Grendels Mother, and his final fight with the dragon. Before going off to do battle with Grendel, Beowulf gives a speech that may appear conceited to the modern reader, but is in actuality a simple device used to insure his immortality through fame. Beowulf states, I claim myself no poorer in war strength, war works, than Grendel claims himself. Therefor I will not put him to sleep with a sword and then may wise God, Holy Lord, assign glory on whichever hand seems good to him (35-36). Now whether he wins or looses the fight Beowulf will always be remembered as the courageous warrior who battled the beast without the aid of a weapon. This passage also shows Beowulfs unconquerable courage. It is important to note, however, that this courage does not come from A strong mind, but rather from an unquestioning belief in fate, which in turn, is completely at Gods command. His courage, therefor, comes entirely from his belief that he has done good in the eyes of the lord.Armed only with his strong belief in the goodness of the Lord Beowulf attacks the evil Grendel (enemy of god according to page 37) and displays his awesome strength. When Beowulf first grasps the arm of his opponent he is described as he who of men was strongest of might in the days of his life (37). He then proceeds to rip Grendels arm from his body while more than enough of Beowulfs earls drew swords, old heirlooms, wished to protect the life of their dear lord, famous prince however they might (37) (a perfect example of the importance of loyalty in the lord-thane relationship). In his second battle Beowulf again epitomizes the Anglo-Saxon hero by again exhibiting the aforementioned traits. After Grendels Mother swarms the castle in retribution for the murder of her son (choosing to wage war instead of accepting wergild) Beowulf is determined to do away with the descendent of Cain. He was resolute, not slow of courage, mindful of fame (47). He is exceptionally strong since, in order to reach the dwelling of Grendels mother, he must swim for almost a day to reach the bottom of a lake. This is of course no great ordeal for a man who can swim