The Puzzle Of Philosophy Is There A Self Essay

The Puzzle of Philosophy: Is there a self? Who am I? Is there a self? Is the self an illusion? Many famous philosophers over the last decades started to think and challenge themselves to reach a reasonable answer for these questions. Self is the absolute core truth of reality. Self is the function of mind that helps people to organize their experiences. Moreover, self is very critical for everything we do in our lives. Without a strong sense of self, people could not make sense of anything happening to them at all. As a thinking thing, I believe that that there is a self, however, many philosophers disagreed that self exists and many of them were confused to admit if there is a self or not. This arguing paper show my opinion about existence of self and it also will define what self is, what consist self, and what confused philosophers in the identity of the self. The father of the modern philosophy, Renà © Descartes, was among the philosophers who reached the fact that self exists. Descartes knew well that because he is able to think, then he must exist. This is known as the Cogito, one of the most powerful statements and weapon to prove that there is a self. This was the starting point which led me to stand on a solid ground and determine whether I believe that there is a self or there isn’t. Descartes used a mixture of scientific and logic attractive way to reach his conclusion. First, he had disproved everything he used to believe in. After that when there was nothingShow MoreRelatedThe Quality Of Self Reliance953 Words   |  4 Pagesthan the Plebeians when facing puzzles, the types of wisdom they possessed were different to some extent, and this is the main factor that caused different experience in their later life. The quality of self-reliance is a representation to imply on the traditional belief, which is that a hero-type would be willing to fight against own destiny, though the consequence would mostly be tragic. Such inspiring quality was spread for generations as a symbol of the Greek. Self-reliance symbolises the commonRead MoreEarly Childhood Course At Savannah Technical College Essay1662 Words   |  7 Pagesfrom secondary school with a gold medal at the age of seventeen. He entered the University of Moscow and initially studied medicine, then switched to law. Vygotsky continued his self-directed studies in philosophy. After graduating from the University of Moscow, Vygotsky returned to Gomel to teach literature and philosophy. In 1924, he made a presentation at the Second All-Russian Psychoneurological Congress in Leningrad. In 1925, Vygotsky finished his dissertation on the psychology of art. VygotskyRead MoreAn Analysis in the Caltech Rationale829 Words   |  3 PagesIn the analysis of the events and inspirations in my life that led to my decision on where to attend college, I view the motif of puzzles and games of logic stemming from my infancy into the current day as a major component of the reason I picked Caltech over Penn, the final two colleges in n arrowing down my college search. Caltech, a very small school of 235 students per grade represented hardcore academics with an infamously difficult core curriculum, focused mainly in pure and applied math andRead MoreMy Success As An Engineer900 Words   |  4 Pagesaffinity for puzzles. In 6th grade, all my free time was dedicated to the art of putting together puzzles. More than likely I skipped out on homework just to work some puzzles. I didn’t have many friends and this was the way in which I began self-definition. After my parents’ divorce, my sister and I were separated and up until that time in my life, she was the main influence for my personality. While my sister was great, I definitely had something unique about myself. Through excessive puzzle completingRead MoreEssay on Nursing Coat of Arms1144 Words   |  5 Pageseveryday nursing. My group and I came together to create a Coat of Arms that clearly represents our vision and beliefs about the nursing prof ession, while also integrating the values mentioned beforehand. Our Coat of Arms consists of a shield with puzzle pieces, a question mark, and the outline of a brain as its background. At the top of the shield lies the figure of a lion alongside a balanced scale. At the bottom of the shield two hands come together to form a heart, and finally a man and a womanRead MoreDescartes Essay example757 Words   |  4 PagesDescartes Is our education complete once a degree has been earned? Have we learned all there is to know? Can we be sure of what we have come to know? Only a completely self-assured person might answer yes to these questions, but for Rene Descartes (1596-1650) the completion of his formal education left him feeling and thinking he was still ignorant about the certainties of human experience and existence. This prominent Renaissance philosopher conquered the world of uncertainty in a workRead MoreDemings 14 Points1305 Words   |  6 Pagesconstancy purpose, adopt a new philosophy, Cease Dependence on Inspection to Achieve Quality, End the practice of awarding business on the bases of a price tag, Improve constantly and forever the system of production and services, use training on the job, implement leaderships, eliminate fear, break down barriers between departments, get rid of unclear slogans, eliminate management by objectives, remove barriers to pride of workmanship, implement educatio n and self-improvement, and make â€Å"transformationRead MorePhilosophy of Managment Essay1907 Words   |  8 Pagesfamily lifestyles. Management is important to understand and consider for a variety of situations. My focus in this paper will be to relate my management philosophies to defined management styles. I will also to describe my personal and social management philosophies and how they compare and contrast to one another. My personal management philosophy does not have a set definition or guideline that it follows. My personal management style is dependent upon a given situation that I am going through orRead MoreA Dynamic Learning And Fun Environment For Your Child742 Words   |  3 Pagesdedicated to the ‘whole child’. Our classroom ratio is 15:1 (fifteen children to one teacher). Our philosophy is helping children to develop and grow as evolving learners within multifaceted environment. As teachers, we strive to provide the child with those components needed to build a solid base as each develops into lifelong learners. Our developmental goals for the children are to help develop positive self-awareness by tuning into their emotions, as well as others, and also being able to accuratelyRead MoreThe Socratic Problem Of Socrates1462 Words   |  6 Pageswas born in 469 B.C.E., in Athens, Greece. He was a loyal citizen of Athens who also served as a soldier as required for Athens males. His philosophy, or as it was called, his Socratic Method, laid the stones for what became to be known as Western philosophy. However, Socrates remains one of the most powerful, yet misunderstood and enigmatic figures of philosophy. What is known about Socrates comes from writings of other philosophers, such as his follower Plato, and Plato’s student, Aristotle. The

Adult Illiteracy - 7435 Words

Learning to read is like learning to drive a car. You take lessons and learn the mechanics and the rules of the road. After a few weeks you have learned how to drive, how to stop, how to shift gears, how to park, and how to signal. You have also learned to stop at a red light and understand road signs. When you are ready, you take a road test, and if you pass, you can drive. Phonics-first works the same way. The child learns the mechanics of reading, and when he s through, he can read. Look and say works differently. The child is taught to read before he has learned the mechanics Ââ€" the sounds of the letters. It is like learning to drive by starting your car and driving ahead. . .And the mechanics of driving? You would pick those up as you†¦show more content†¦I worked my way through a mountain of books and articles on the subject, I talked to dozens of people, and I spent many hours in classrooms, watching what was going on. What I found is absolutely fantastic. The teac hing of reading -- all over the United States, in all the schools, in all the textbooks -- is totally wrong and flies in the face of all logic and common sense. Johnny couldn t read until half a year ago for the simple reason that nobody ever showed him how. Time magazine called his book the outstanding educational event of that year and suggested that he represented the devil in the flesch to the education establishment. There is an answer to why Johnny can t read, but the answer is tough medicine to swallow. It requires education professionals, who for years have been engaged in a form of education malpractice, to admit that the methods of teaching reading they have vigorously advocated and staunchly defended ever since the 1930 s are dead wrong. If we are to seriously reverse the increasing number of illiterate adults in America and prevent the problem of illiteracy, we must swallow the medicine, as quickly as possible, and reject the instructional methods that have resulted in t he widespread illiteracy we have today. Two ways to teach reading Historically, all American school children were taught to read. Teachers never considered that a child could not be taught to read, andShow MoreRelatedLanguage Acquisition Ameliorates Adult Illiteracy848 Words   |  3 Pagesï » ¿Language Acquisition Ameliorates Adult Illiteracy Being literate in todays society demands a myriad of functional abilities, which, when absent, can have dramatic health, economic, and social consequences.  Literacy possesses various aspects, such as reading, writing, speaking, and technology. Undoubtedly, language acquisition is a precursor to developing reading, writing, speaking, and technology literacy. Children must learn basic phonemes, graphemes, and morphemes as a basis for reading applicationRead MoreIlliteracy is a Common Problem Amongst Children and Adults in the World664 Words   |  3 PagesIlliteracy is a common problem amongst children and adults. Illiteracy exists in all nations all over the world. Not having the ability to read and comprehend is a fault of the school systems. Many people assume that illiterate Americans are concentrated in large cities with troubled schools. Although this may be true in some cases, there are rural areas where illiteracy is often times are overlooked. The United Nations Educ ational Scientific and Cultural Organization released a study stating thatRead MoreDoes Illiteracy Affect Crime and Poverty Rates?1757 Words   |  7 PagesDoes Illiteracy Affect Crime and Poverty Rates? Illiteracy is a growing problem in the United States. The amount of juvenile delinquents entering correctional facilities that are considered â€Å"functionally illiterate† is at an astonishing 85%. Being functionally illiterate means that these children lack reading and comprehension skills that are necessary in order to function in everyday situations as well as the ability to work and maintain a job. Complete illiteracy means a person cannot read orRead MoreEssay on Functional Illiteracy873 Words   |  4 PagesWhat is Illiteracy? An adult or adults with a reading incapacity, a lack of knowledge of a subject, and/or a error in speech or writing according to Encarta World English Dictionary is a person or persons with illiteracy. Ronald Nash the author of an on-line article entitled The Three Kinds of Illiteracy he describes the three different types of illiteracy. Nash explains in detail cultural, moral, and functional illiteracy in his article. Cultural illiteracy defined by E.D. Hirsch Jr. is toRead MoreThe Cycle Of Illiteracy And Illiteracy984 Words   |  4 PagesThe Cycle of Illiteracy Illiteracy has always been a problem in society in various ways that I believe, can only be frowned upon. Events in the past and present days emphasize the importance of basic education focusing in literacy as an essential part of our society. An experience as simple as a parent being illiterate can have a ripple effect on their children. Such as, my grandfather, who was raised in Mexico and was taught that labor to provide for his family was of higher importance thanRead MoreEssay on Challenges Facing America741 Words   |  3 Pages One of the most important responsibilities of our nation is to protect and serve its citizens. As the new millennium begins, our nation must overcome many challenges that affect this responsibility. Three of the most important are terrorism, illiteracy, and the lack of moral values. Americans have considered terrorism as a horror that occurs in other countries and not as a real threat to America itself. As the recent terrorist attacks on our nation shows, this opinion was gravely incorrect.Read MoreJonathan Kozol The Human Cost Of An Illiterate Society Analysis1009 Words   |  5 Pageslimited in a world full of opportunities and advantages due to illiteracy. In this society, it is unfortunate that there are individuals who are illiterate, which ultimately affects their democratic lives. Many other citizens do not face this issue, and may not recognize the disadvantages that illiterates face. In Jonathan Kozol’s text, â€Å"The Human Cost of an Illiterate Society,† he discusses the various issues concerned with illiteracy, one of them being how it affects democracy. Democracy is a typeRead More Illiteracy in America Essay969 Words   |  4 Pages Illiteracy in America Walking into a class room full of seniors, one might not suspect that some of the students can not read above a third grade reading level (Mcmaster). In fact one million teenagers from the ages of 12 and 17 do not have the reading ability of a third grader. Literacy among American people is important because it affects our economy greatly. Not only that but it also affects the lives of the American population. Illiteracy is a large problem within the United States thatRead MoreHow Illiteracy E. Ffects Individual People And Society As A Whole1739 Words   |  7 PagesCiara Puckett Professor Jean Schloeman English 101 15 June 2015 How illiteracy e ffects individual people and society as a whole An Estimated 27 Million Americans are considered illiterate, and another 45 million are considered marginally competent in basic skills. (Women,illiteracy,pov) An illiterate person in our society faces trials every day that are taxing, making life difficult mentally and physically. There is an overwhelming amount of research and studies that indicate that individualsRead MoreProblems Faced by Illiterates Essay478 Words   |  2 Pagesthat sort would have. This chaos is not far from what millions of illiterates feel on a daily basis. The phrase illiteracy applies to more than a simple inability to read or write. There is also functional illiteracy. Functional illiterates can read words but they cannot comprehend their meanings, synthesize information or make decision based on what they read. Illiteracy could also be defined as restriction or confinement due to the simple fact that, thats the type of life many non-readers

Sociology practice Free Essays

This situation Is an example of: Selected Answer: d. Both a and c Question 2 0. 5 out of 0. We will write a custom essay sample on Sociology practice or any similar topic only for you Order Now 5 points Sarah works as a lawyer in a prominent law firm in New York City. She has more awards and recognition in her field than any of her colleagues, and has also been with the firm the longest (aside from the partners). When one of the partners retires, Sarah applies for the promotion. She assumes that with her numerous awards and years with the firm, she will get the promotion to partner. However, John, a far less experienced and qualified lawyer Is given the promotion Instead. Sarah may be the victim of: Selected Answer: c. Glass ceiling Question 3 O out of 0. 5 points Mexican Americans, Irish Americans, and Muslims are all examples of: Selected Answer: c. Both racial and ethnic groups Question 4 whereas women. Is a relationship in which one woman is married to multiple men, s a relationship in which one man is married to multiple Selected Answer: b. Polyandry; polygon Question 5 Sally has worked at General Motors for many years. She started off as a factory worker, worker her way up to factory manager In Just a few years, and Is now a regional director for all GM factories in the Midwest. This scenario is an example Selected Answer: a. Upward intergenerational mobility Question 6 The trend of credentials in the U. S. Has disadvantaged Blacks and Latino. These groups are less likely to be able to afford a college education, and as a result, re finding it increasingly difficult to find a well-paying Job. Which theoretical perspective would be most likely to make this argument? Selected Answer: a. Hidden Curriculum Question 7 The former caste system in India, in which people were unable to marry and work outside of the caste they were born into, is an example of what kind of stratification system? Selected Answer: c. Closed System Question 8 Ryan holds strong beliefs about people and is always willing to voice his opinion. For example, whenever a conversation about driving comes up, Ryan is always quick o share his opinion that females and Asian-Americans are bad drivers and make it more difficult for White males to drive safely. Which concept best describes Ryan’s beliefs? Selected Answer: d. Stereotype Question 9 Increasingly, the number of degrees/diplomas needed for many Jobs has increased over time. For example, Jobs that only required a high school diploma in the past now require a bachelor’s degree. This trend is known as what? Selected Answer: b. Credentials Gender is not socially constructed; gender is determined by biological differences between males and females. Selected Answer. How to cite Sociology practice, Papers

Smart Materials in Aerospace Industry free essay sample

Within each subsection, we will draw a relationship between the properties of the smart material and its molecular mechanism. This is followed by presenting an outline of their recent and future applications, and the experimental procedures and results done in recent researches to show the feasibility of these applications. In the Discussion section, we will be delving into the cost-effectiveness and feasibility of using smart materials in aerospace components. Finally, the conclusion will give an insight into the relationship between the use of smart materials and the design of future aircrafts. Smart materials are defined as materials that can significantly change their intrinsic properties (mechanical, thermal, optical or electromagnetic), in a predictable and controlled manner in response to their environmental stimulus[1]. In general, these materials can be categorized into 3 categories, namely thermal-to-mechanical (shape memory alloys), electrical-to-mechanical (piezoelectric), and magnetic-to-mechanical (magnetostrictive). Materials engineering has undergone a major transformation in the recent decade, as atoms and molecules are no longer viewed and worked upon on the microscopic level, but now on the nanometer level. Materials requirements are becoming more complex, especially in the aerospace industry in which safety and cost-effectiveness often conflict against each other. It is no longer acceptable for materials to have a single function; they need to be multifunctional to save costs and weight. Smart materials are now replacing monolithic ones to achieve multiple functions at all scale levels. Hence, smart materials are essentially integrated into the use of aerospace components. What differentiates smart materials from normal monolithic ones? Smart materials exhibit characteristics which most scientists would term as ‘intelligence’. This includes immediacy (the ability to respond in real time); transiency (the ability to respond to more than one environmental states); self-actuation (inherent intelligence within material); selectivity (having a discrete and predictable response); and lastly, directness (response is local to the ‘activating’ event)[2]. The performance characteristics of aircrafts are often limited by properties of materials used in both the airframe and propulsion systems. With the recent advancement of materials technology, high performance materials are created, resulting in a breakthrough in the performance and efficiency of modern aircrafts. The discovery of smart materials provides cost-effective and innovative solutions to the limitations currently faced in the design of aircrafts. These smart materials perform specialized functions when exposed to external stimuli, and they are increasingly being used to replace conventional aircraft parts for better performance. In this report, we shall look at the current and future use of these smart materials in the aerospace industry. 1. Purpose The purpose of this report is to introduce the different types of smart materials and their applications in the aerospace industry. Recent and emerging uses of these smart materials will also be presented, with brief experimental procedures and results obtained from recent researches and experiments to show the feasibility in aerospace applications. 1. 2 Background Smart material transformation was first observed on gold-cadmium, and recorded in 1932. Five year later, in 1938, the same phase transformation was observed in brass. In 1962, Beehler and coworkers discovered the shape memory effects of Nickel-Titanium alloy, and they named this family of alloy as Nitinol. The discovery of Nitinol ignites the discovery of other alloy systems with shape memory effect, and also accelerates the use of smart materials in product development. [3] Since then, aerospace companies are also exploring the use of smart materials in aircraft components. Conventional automatic control systems which use servo-valve or hydraulic actuators face a lot of limitations. These limitations include multiple energy conversions, complexity due to large number of parts resulting in large number of potential failure sites and large weight penalty, high vulnerability of hydraulic network, and frequency limitation. In contrast, the advantages from the use of smart materials actuators include the direct conversion of electrical energy to high frequency linear motion, easier transmission of electrical energy throughout aircraft, and light and compact smart materials induced-strain actuation in place of bulky hydraulic power systems. With this huge potential offered by smart materials, researchers are eager to tap on this potential, by exploring on ways to implement these smart materials into aircraft components. 1. 3 Scope This report will present the 4 common types of smart materials that are popular in the market. A brief description will be made with regards to the mechanism of how the smart materials function. The properties of the smart materials will then be related to their current and future aerospace application. This is followed by the detailed outline of the experimental procedures undertaken by past researches, as well as results obtained which prove the feasibility of using these smart materials for the aerospace applications. Finally, discussions will be made on the viability of the use of smart materials in the aerospace industry, in terms of safety, cost feasibility and future trends. . Types and Applications of Smart Materials 1. Piezoelectric Material Piezoelectricity is the generation of electrical potential in a material in response to a mechanical stress. This is known as the direct effect. It can also mean mechanical deformation upon the application of electrical charge or signal (Harrison JS and Ounaies Z, 2001). In this case, the material can serve as a sensor to detect m echanical stress. In addition, the materials can serve as an actuator when there’s a large increase of size due to electrical stimuli. The two types of piezoelectric materials that are used as smart materials are piezoelectric ceramic and polymer. Properties Piezoelectric materials are widely used as they possess favorable properties such as fast electromechanical response, wide bandwidth, high generative force and relatively low power requirements (Harrison JS and Ounaies Z, 2001). In addition, piezoelectric polymers are flexible, lightweight, and have low acoustic and mechanical impedance, while piezoelectric ceramics are brittle, heavy and toxic. Mechanism Piezoelectric effect is formed in crystals that have no centre of symmetry. One end of the molecule is more negatively charged while the other end is more positively charged, hence a dipole moment exists within the molecule. This is due to both the atomic configuration of the molecule, and also the molecular shape. Polar axis is the imaginary line that runs through the centre of both charges on the molecule. The orientation of the polar axis determines the type of crystal. For monocrystal, all the molecules’ polar axes are oriented in the same direction (Figure 2. 1. 1), while for polycrystal, the polar axes of molecules are oriented in different direction. When the material is compressed, a voltage of the same polarity as the resultant dipole moment will appear between the electrodes (Figure (b)). Conversely, the voltage will be of opposite polarity when the material is expanded (Figure (c)). Similarly, a voltage applied that is opposite to the poling voltage will cause the material to expand(Figure (d)), while an applied voltage of the same polarity will cause the material to be compressed (Figure (e)). If an alternating voltage is applied across the material, the material will vibrate with the same frequency as the signal. [pic] Figure 2. 1. 4 Advantages and Disadvantages[4] Advantages |Disadvantages | |Compact and lightweight |Brittle due to crystalline structure | |Displacement proportional to applied voltage |Produce small strains compared to SMA and magnetostrictives | |Operate over large temperature range |Cannot withstand high shear and tension | |Fast response to applied voltage(msec) |Aging of material | |Repeatable sub-nanom eter steps at high frequency |Uses active control, which can result in instability | |No moving parts |Can become depolarized (at high temperature, high voltages and large | |Function at high frequencies |stresses) | |Excellent stability | | |Easily embedded into laminated composites | | Aerospace Applications Piezoelectric materials are mainly used in the aerospace industry for shape control and vibration control. †¢ Tail-Buffet Suppression High performance aircrafts with twin vertical tails often face the aeroelastic phenomenon of tail buffeting, in which the unsteady vortices that emanates from the wing leading edge extensions burst and immerse the vertical tails in their wake. This results in severe vertical tail response and buffet loads, which lowers airframe life and increases maintenance costs. pic][pic] Before the development of piezoelectric actuators, various method of alleviating buffeting was used. One method was the use of hydraulic actuators to superimpose the oscillations of affected control surfaces about their hinges, so as to effect damping. However, this method has two disadvantages. Firstly, the flight control system and buffeting-minimization system must use the same degree of freedom for the same control surface, thus reducing the availabi lity of the control surface for each role. Secondly, operations are limited to low frequencies due to the difficulty of oscillation a large control surface about its hinges. These shakers are controlled by the test rig control system to model actual flight structural loads. †¢ In the experiment, four custom-made high-power amplifiers of 2kVA rating over 200Hz bandwidth were used. Results Conclusion The experimental results have shown that the active control system using piezoelectric actuators was able to effectively suppress the buffet response of the vertical fin at high angle of attack. Amplitude reductions of up to 60% at the normal flight configuration and close to 10% in the worst case scenario were observed (Yousefi-Koma A Zimcik DG 2003). It was estimated even a small 10% reduction in vibration amplitude would double the durability of the fin. Hence, it can be concluded that with the use of piezoelectric actuators in active-control surface modal (ACSM) device to deform the control surface, the control surface not only can respond to buffeting-minimization signals, but also flight control commands. †¢ Wing Flutter Damping When a structure is placed in a flow of sufficiently high velocity, an aeroelastic self-excited vibration takes place, which has a sustained or divergent amplitude. This results in dynamic instability that can get violent. This is because at high speed, the effect of the airstream can cause the coupling of two or more vibration modes such that the vibrating structure will extract energy from the airstream. The extracted energy equals the amount of energy that the structure can dissipate at the critical speed, and a neutrally stable vibration exists. However, above this critical speed, the vibration amplitude will diverge, causing structural failure. Experiment and Result The Piezoelectric Aeroelastic Response Tailoring Investigation was conducted at MIT with the support of NASA, and it aims to achieve the following objectives: determining the power consumption of the piezoelectric actuators while controlling the response of the structure; investigating optimal piezoelectric actuator placement; and, testing disturbance rejection controllers at zero airspeed (Anna-Maria Rivas McGowan). The major components of the 4-feet test model, as shown in Figure 2. 1. , consist of two primary structures: an exterior fiberglass shell, which is used to obtain aerodynamic lift; an interior composite plate that contains the piezoelectric actuators, and is made up of an aluminium honeycomb core sandwiche d by graphite epoxy plates. The plates are of [20 °2/0 °]s laminate, referenced to the wings quarter-chord which is swept 30 °, and this provides a static coupling of the bending and torsional behaviour. Fifteen groups of piezoceramic actuators patches are placed at the top and bottom of the interior plate, and they are configured to impart moments to the plate. Together with the orientation of the graphite epoxy and the wing sweep angle, the actuators can affect bending and torsional vibration of the model. Forces on the model were monitored using ten strain gauges and four accelerometers. To acquire time history data, each of the 15 piezoelectric actuator groups was activated individually, as well as in five sets of several actuator groups. The experimental results is shown in the graphs in Figure 2. 1. 7. In summary, it shows that the control system can effect successful flutter suppression and gust reduction in the model, with a 12% increase in flutter damping and 75% decrease in root-bending moment caused by gusts. This clearly shows the potential of the use of piezoelectric actuators in suppressing the detrimental effects of wing flutter. [pic] Figure 2. 1. 6 pic] Figure 2. 1. 7 †¢ Rotor Blade Twist Outboard portion of the blade travel faster, and with the same lift coefficient, higher lift force is concentrated near the blade tip. To distribute the lift force evenly among the blades, the angle of attack is made to be lower near the blade tip, and higher near the blade root, s uch that the lift coefficient decreases with increasing distance from the blade root.