Comparing the Theme of Technology Versus Nature in Frankenstein and Neu

Technology Versus Nature in Shelley’s Frankenstein and Gibson’s Neuromancer      Ã‚  Ã‚  Ã‚  Ã‚   At first glance, a comparison of Shelley’s Frankenstein and Gibson’s Neuromancer could seem rather irrelevant having in mind that these two works are separated by more than a century. During this lapse of time, humanity has witnessed profound changes at a breath-taking speed. The partly Gothic and partly Romantic world of Mary Shelley is quite different from the reality Gibson predicts. We could not say, however, that there are no links between the two. Shelley's work could be viewed as the apprehension of the new-born fear in regard to technical invention and Gibson's work as the divination of the consequences of technological development and sophistication. In both cases the essence of human nature has barely changed. It is what lies behind the destructive human strife for more, more at any price that has led to the despondent conclusions of both works.    Indispensable to understanding the complexity of the problem of technology, in both Mary Shelley's Frankenstein and William Gibson's Neuromancer, is the historical context in which the two were written. Whereas Frankenstein was written in a period of dramatic change - that of the Industrial revolution, in Neuromancer, Gibson echoes the opinion of economists who believe that we are currently experiencing the beginning of a profound economic revolution, due to the breakthroughs in information and communication technology, and which some believe is equal in magnitude to the industrial revolution. The second leitmotif of my research is that of nature in reference to technology. Here I describe the relation of Mary Shelley's Frankenstein to technology and some of the crucial issues co... ... Stephen. York Notes on Mary Shelley's Frankenstein. Longman York Press, 1992. Bloom, Harold and Golding, William. Modern Critical Views on Mary Shelley. Edited with an introduction by Harold Bloom. Chelsea House Publishers, New York, 1985. Forester, Tom. The Information Technology Revolution. Edited and introduced by Tom Forester. The MIT Press, Cambridge, Massachusetts, 1985. Borgmann, Albert. Technology and the Character of Contemporary Life. A Philosophical Inquiry. The University of Chicago Press, 1984. Leebaert, Derek. Technology 2001. The Future of Computing and Communications. Edited by Derek Leebaert. The MIT Press, Cambridge, Massachusetts. Third printing, 1991. Michie, Donald and Johnston, Rory. The Knowledge Machine. Artificial Intelligence and the Future of Man. William Morrow and Company, Inc., NY., 1985.            

An Analysis of Andrew Sullivans Let Gays Marry :: Let Gays Marry Andrew Sullivan

"Let Gays Marry" is an article written by Andrew Sullivan arguing that homosexuals should be given the right to be legally married in the United States. In this essay, Sullivan argues that homosexuals have just as much right to marry as heterosexual couples. Sullivan argues that throughout US history that the definition of marriage has been altered several times to accommodate changing times, and that it is time to recognize gay's right to marry. Throughout the article, Sullivan uses several sources to back up his argument, but also makes several comments to weaken his argument. To add to Sullivan?s credibility, he is an editor of The New Republic, which was established in 1914 with a mission to provide its readers with an intelligent, stimulating and rigorous examination of American politics, foreign policy and culture, the author of several books, including Virtually Normal: An Argument about Homosexuality, as well as having been published in several news magazines including Newsweek. Sullivan?s article is an inductive argument directed at persuading and perhaps even educating all people on why gay marriage should be allowed in the United States. Throughout the essay, Sullivan uses multiple techniques, including Pathos, Ethos, Logos, and even Mythos to squarely support his argument, all of which help to aid in the credibility of the topic. Sullivan?s argument, while generally successful, has some weak points. The argument is generally written in a very relaxed manner, which may or may not discredit the argument. People looking to argue against Sullivan?s article may view the relaxed format as a sign of lack of knowledge or support of the argument. On the other hand, being composed in accessible language readily understood by the general population, and not perceived as accessibly intellectual may help this argument appeal to a broader population. Having been published in Newsweek Magazine on June 3, 1996, Sullivan?s article seems to be credible. Newsweek is a credible news source, and generally publishes credible materials. Despite having been published in Newsweek, this argument is biased when in the first sentence Sullivan identifies himself as a homosexual. ?For the first time in Supreme Court history, gay men and women were seen not as some powerful lobby trying to subvert America, but as the people we truly are?? When Sullivan uses the term we, he is identifying that he himself is a homosexual, and therefore I must assume that he is arguing from a homosexual point of view, and not an unbiased point of view.

Outsourcing Customer Service Essay

Outsourcing Customer Service Executive Summary The choice to outsource company’s relations with their customers is a choice many businesses are making. With the costs of labor more than a quarter of the rate an average customer service representative makes in the United States (U. S. ), large companies are making the choice to offshore some, or the entire company’s customers service departments to other countries. To many of these companies, the benefits are out weighing the issues relating to outsourcing in general. Breaches of security and customer satisfaction are some of the problems businesses are facing when making the choice to offshore. Are cutting costs more beneficial than customers losing faith in the products of the company? Outsourcing Customer Service Outsourcing is a business practice that is used around the world. This paper will describe the business case for a company to outsource some of its operations, and the risks that are weighed when choosing to outsource. What impacts those decisions have on the company and its customers will also be discussed. A Background on Outsourcing Outsourcing customer service overseas involves hiring another company abroad to take over either some or the entire customer support department. Outsourcing has become a growing trend today. Many large American, European, and British corporations are eager to cut costs by off shoring customer service jobs to foreign firms for significantly lesser wages. Why Outsourcing? Some of the objectives a company will accomplish by outsourcing jobs to foreign firms are cost savings, having 24 hour customer service, and a centralized service center. Each of these points does however come at a price, and will sometimes outweigh the benefits. Saving money has been the greatest reason companies have chosen to send the majority of their customer service departments to other countries. The thought of cheap labor is enticing to many businesses when making the choice to off shore. The average call center graduate, usually holding a bachelor’s degree (BA) earns 3,000 rupees a week, which is the equivalent of 67 U. S. dollars (Aspden, 2006). To facilitate the need to off shore, construction of office space is taking 10 months to complete instead of the normal 18 months in Bangalore, India. Each month over 40 companies make the decision to outsource Information Technology (IT), back-office and customer service departments to India, and other countries. To fight the onslaught of new business, India has setup second tier cities to handle the overflow of demand and establish call centers such as Pune, Kolkata, and Jaipur, just to name a few. These cities in India are growing quickly to accommodate the need for outsourcing, while slowly loosing the foothold on the market due to the increases in pay. With other countries such as China, Hungary, and the Philippines competing for lower wage work, India may loose almost half it’s market share by 2007 (Aspden, 2006). However, companies are finding out that there are hidden costs involved with the outsourcing of customer service. A growing trend of customer dissatisfaction is causing major corporations to reconsider the outsourcing of its services. In a recent survey of pension policy holders in the United Kingdom (U. K. ) it was found that 75% would leave their current provider if they experienced bad customer service (Pfeffer, 2006). Mega corporations such as Dell, Capitol One, and JP Morgan all made an attempt to outsource customer service and all reversed course. Evidence is mounting that good customer service is pivotal in a company’s retention of customers. A 2005 Gartner study predicted that 60% of organizations that outsource customer-facing processes will see significant numbers of frustrated customers switching to competitors (Pfeffer, 2006). Even call centers in the United Kingdom (U. K. ) have reverted calls back to their own soil due to customer complaints, with the majority of those companies vowing to keep call centers in the U. K. (Kivlehan, 2005). The corporate mentality towards outsourcing is far understated as companies see the business case for the moves, assuming that customers do not pay attention to dialect and local customs. After years of wondering what all those fiber-optic cables laid around the earth at massive expense in the late 1990s would ever be good for, we finally have an answer: They are good for enabling call-center workers in Bangalore or Delhi to sound as if they are next door to everyone. Broadband’s killer app, it turns out, is India (Fox, 2003). Risk Management

Can society fully control individuals?

Although society sets a myriad of rules and regulations that ostensibly circumscribes your actions, it is our choice whether or not to conform to these rules. Convincing examples to demonstrates this founds are found in A Doll’s House by Henrik Ibsen, To Kill a Mockingbird by Harper Lee and Galileo’s choices of defying norms in the field of science. Nora’s decision to leave Torvald and seek her independence in the play A Dolls House by Henrik Ibsen explicitly demonstrates that, regardless of what society dictates, choices are always present ot the individual. Nora was one of many women who suffered from the male supremacy during the Victorian Era. Her husband, Torvald, would call her demeaning names such as â€Å"squirrel† and â€Å"pet† and expects her to obey every command because society dictates that she should. However, Nora defied her â€Å"social norms† and left Torvald to achieve her independence: an act considered to be unthinkable at the time. Thus demonstrates that decisions are contingent upon individuals, not society. Another example which shows that our choices area solely determined by ourselves is that of Atticus and his decision to defend a black man, Tom Robinson, in To Kill a Mockingbird by Harper Lee. Atticus, who lives in a town inhabited by a racist, white community, decided to do what he thinks is right and defended a black man named Tom Robinson, who was spurious accused of raping a white girl. Despite Atticus’s cognizance of the vicious calumny that he will be subjected to by society, he nevertheless made the decision which he considered is right and defended Tom Robinson. This further shows that decision are purely based on the individual. In addition, the fact that decisions of the individual can never be fully controlled by society is shown in the field of science, particularly through Galileo’s choice of having a heliocentric view on the universe. Galileo was a scientist who, after adequate research into the field, maintained that, contrary to what the church and Aristotle believed, the sun is in the center of the universe. At the time, society strongly believed that the earth is the center of the universe and considered every other scientist who said otherwise to be mocking religion and thus deserving punishment. Because of his theory, Galileo was convicted of heresy and consequently sentence to home imprisonment. Surely, it was Galileo’s decision to voice his theory which, rather interestingly, happened to be correct all along! The aforementioned examples are just three a vast number of people who decided to go against society wishes. If anything, these people exemplify the human nature of exploring the unknown, of thinking critical outside the box and of seeking dreams regardless of the perils and obstacles on the way, these are the people who make progress possible; without such individuals, society would be a collection of robots that operate based on norms and that would never be able to think, speak or act out anything that does not fit this â€Å"norm†. Quite simply, it is these people that liberated the oppressed and illuminated the path of knowledge.

Hot Wire Laboratory

THE UNIVERISTY OF MANCHESTER SCHOOL OF MECHANICAL, AEROSPACE AND CIVIL ENGINEERING LABORATORY REPORT INSTRUMENTATION AND MEASUREMENT VORTEX SHEDDING FROM A CYLINDER & DATA ACQUISITION NAME:MANISH PITROLA STUDENT ID:75050320 COURSE:MEng MECHANICAL ENGINEERING DUE DATE:27TH NOVEMBER 2012 1) What are the main advantages and disadvantages of using a hotwire to measure flow velocities?There are many advantages and disadvantages of using a hotwire to measure flow velocities, one of the main advantages is the hotwire produces a continuous analogue output of the velocity at a particular point, and hence information about the velocity can be obtained for any specific time. Another advantage of using a hotwire anemometer is the ability to follow fluctuating velocities to a high accuracy. Also another advantage of using a hotwire anemometer is the sensor is able to relate the voltage and the velocity using hotwire theory. However even though hotwire anemometer is an adequate tool to obtain data it has its drawbacks. Read this  Respiratory ActivityOne disadvantage of using a hotwire is that it has to be calibrated due to the theory not coinciding with actual data and the hotwire can only obtain the magnitude of the flow and not the direction. Another disadvantage of using a hotwire is the unsystematic effects that occur such as contamination and probe vibration. Some systematic effects that affect the data are the ambient temperatures and eddy shedding from the wire. One of the main disadvantages of using a hotwire is the output depends on both velocity and temperature, so when the temperature of a fluid increases the measured velocity obtained are too low and adjustment is required. ) Why is setting the correct sampling rate important in digital data acquisition? What experimental parameters or requirements can be used to establish the optimum sampling rate? What may happen if the wrong sampling rate is used? Using the correct sampling rate is important because if the incorrect sampling rate i s used some aliasing effects may occur, presenting insufficient data where important data is ignored if the sampling rate is below the optimum, and if the sampling rate is above the optimum more accurate data is obtained which carries the same trend as the optimum with few distortion which are not required.This can cause inadequacy of the data, where recording is not frequent enough or too frequent. The optimum sampling rate can be established using the Nyquist theory which states that the maximum measures frequency is half the sampling frequency, however the bandwidth of the signal needs to considered, the rule for obtaining the sampling frequency of any probe must be at least 2. 5 times greater than the maximum frequency present. 3) Show how the sampling rate was determined for this experiment.What was the sampling rate? For a flow around a cylinder an empirical relation between the vortex shedding frequency and Reynolds number (Re) is used to find the sampling rate. The relations hip below is used to find the frequency in the flow where the Strouhal number is 0. 2, diameter (d) is 15mm and the free stream velocity (U0) is 10m/s. St=fdU0=0. 1981-19. 7Re? 0. 2 Then by simple algebraic rearranging the frequency is found to be 133. 3Hz. Therefore the maximum frequency experienced is 2f = 2*133. 3 = 266. 6Hz.To obtain the optimum sampling frequency we simply by using Nyquist theory multiply the maximum frequency by 2. 5 providing an optimum sampling rate of 666. 5Hz. The values for the sampling rate were taken as 330Hz, 660Hz and 1320Hz for experimental purposes to study the over and under sampling of data. 4) In the experiment the hotwire was calibrated in terms of velocity vs (E-E0)2. Plot out the calibrations for U = B((E-E0)2)n and the various polynomials. Compare the different lines. Which is the best to use? Figure [ 1 ] Figure [ 2 ] Figure [ 3 ]Figure [ 4 ] From the above graphs is can be seen that the best calibration to use is the cubic calibration (figu re 2) as this fits the actual velocity line more accurately. 5) If the velocity higher than the ones calibrated foer was measured, which calibration is likely to give the best extrapolated data? Figure [ 5 ] Figure [ 6 ] Figure [ 7 ] Figure [ 8 ] From the above graphs it can be seen that the worse extrapolated data is found using the quartic calibration and the best extrapolated data can be found using the linear calibration of A([V-Vo]^2)^n.Also higher order polynomial extrapolation can produce invalid values and as a result the error will magnify as high order of polynomials are used, so therefore the linear relationship is recommended. 6) In a fast Fourier transform (FFT) the data in the time domain is converted to the equivalent data in the frequency domain. The original data can therefore be considered as the sum of a series of sine waves of regularly spaced frequencies, with different magnitudes and phases. How is the frequency interval in the FFT determined? How can the frequ ency interval in an FFT be reduced?What impact could this have on an experiment? The frequency interval can be obtained by dividing the sampling rate by the number of samples used. For 660Hz the number of samples is 1024, so therefore the frequency interval is 660/1024 = 0. 6445. The frequency intervals can be reduced by increasing the number of samples used; this is advantageous as it gives a more accurate representation of the original signal. 7) Considering the FFT data, what can be done in an experiment to isolate genuine signals from random fluctuations in the data? Give an example of this in graphical form.Figure [ 9 ] Figure [ 10 ] From figure 9 it can be seen that the peak is unobtainable as the data is very noisy which could be due to disturbances. However this can be overcome by averaging the FFT which allows us to easily identify peaks which can be seen from figure 10. 8) In this experiment, why are 2 frequency peaks seen on the FFT when the hotwire is near the centre lin e? 2 frequency peaks can be seen on the FFT at the centreline due to the 2 vortices induced by the cylinder but as you move away from the centre line only one of the vortices is predominant.The two peaks occur at 129Hz and 250Hz. 9) With increasing distance from the centreline, how does the FFT distribution change? Include graphs to illustrate this for various locations across the wake. From the below figures it can be seen that as you move away from the centre line the peaks in the FFT distribution disappear. Figure [ 11 ] Figure [ 12 ] Figure [ 13 ] Figure [ 14 ] Figure [ 15 ] Figure [ 16 ] 10) Plot the probability distribution histograms of velocity for various positions across the wake.What does the histogram show and how can the variation in the histograms be explained in terms of the properties of the flow? Figure [ 17 ] Figure [ 18 ] Figure [ 19 ] Figure [ 20 ] Figure [ 21 ] Figure [ 22 ] By comparing the above probability distribution figures it can be seen that with distanc e away from the centreline the flow velocity develops a more uniform velocity. It can be seen that within the 40mm distance away from the centreline, the probability distribution of the velocity produces wide distribution of velocities; this is due to the various velocities inside the wake and turbulence.For distance more than 40mm away the probability distribution of velocity becomes more uniform, which implies the vortices play no role in affecting the flow at these distances away from the centreline. It can also be seen that the flow speed at these distances increases as the flow diverges and accelerates around the cylinder. 11) Plot a graph showing the variation of mean velocity, RMS velocity and turbulence intensity with distance across the wake. What physical phenomena in the flow are causing the distribution to be the shape they are?What do the results say about the size of the wake compared to the size of the cylinder? Figure [ 23 ] Figure [ 24 ] Figure [ 25 ] The vortices i n the flow cause turbulence to occur behind the cylinder which causes the distributions to change. It can be seen from figure 23 that the velocity changes instantaneously as you move away from the centreline, it can also be observed that from 45mm away and more the velocity start to become more uniform and fluctuate around the free stream velocity. From figure 25 and 25 from 45mm and onwards the RMS and RTI decrease.From the above graphs it can be deduced that the size of the wake is 45mm from the centreline or a total width of 90mm, which is 6 times the diameter of the cylinder. 12) What are the major sources of error likely to be in this experiment? Try and give a numerical estimate to the possible error(s) in the data. Some of the likely sources of error that may occur during this experiment are the calibration process as the hotwire was only calibrated at the centreline and as the hotwire was lowered using screw mechanism which it not totally accurate, there was no calibration o f the at the new position.Another source of error can be due to pressure fluctuations, and due to the velocity being measured using the pressure differences, these fluctuation can cause the velocity to vary. Another source of error could be the assumption of the flow being 2-d as turbulence is a 3-d. To calculate the error, I used the measured velocity table and the theoretical linear calibration velocity. Taking the average error, the percentage error in the experimental data was 5. 8%. Within a range Can not measure supersonic velocities Hot Wire Laboratory THE UNIVERISTY OF MANCHESTER SCHOOL OF MECHANICAL, AEROSPACE AND CIVIL ENGINEERING LABORATORY REPORT INSTRUMENTATION AND MEASUREMENT VORTEX SHEDDING FROM A CYLINDER & DATA ACQUISITION NAME:MANISH PITROLA STUDENT ID:75050320 COURSE:MEng MECHANICAL ENGINEERING DUE DATE:27TH NOVEMBER 2012 1) What are the main advantages and disadvantages of using a hotwire to measure flow velocities?There are many advantages and disadvantages of using a hotwire to measure flow velocities, one of the main advantages is the hotwire produces a continuous analogue output of the velocity at a particular point, and hence information about the velocity can be obtained for any specific time. Another advantage of using a hotwire anemometer is the ability to follow fluctuating velocities to a high accuracy. Also another advantage of using a hotwire anemometer is the sensor is able to relate the voltage and the velocity using hotwire theory. However even though hotwire anemometer is an adequate tool to obtain data it has its drawbacks. Read this  Respiratory ActivityOne disadvantage of using a hotwire is that it has to be calibrated due to the theory not coinciding with actual data and the hotwire can only obtain the magnitude of the flow and not the direction. Another disadvantage of using a hotwire is the unsystematic effects that occur such as contamination and probe vibration. Some systematic effects that affect the data are the ambient temperatures and eddy shedding from the wire. One of the main disadvantages of using a hotwire is the output depends on both velocity and temperature, so when the temperature of a fluid increases the measured velocity obtained are too low and adjustment is required. ) Why is setting the correct sampling rate important in digital data acquisition? What experimental parameters or requirements can be used to establish the optimum sampling rate? What may happen if the wrong sampling rate is used? Using the correct sampling rate is important because if the incorrect sampling rate i s used some aliasing effects may occur, presenting insufficient data where important data is ignored if the sampling rate is below the optimum, and if the sampling rate is above the optimum more accurate data is obtained which carries the same trend as the optimum with few distortion which are not required.This can cause inadequacy of the data, where recording is not frequent enough or too frequent. The optimum sampling rate can be established using the Nyquist theory which states that the maximum measures frequency is half the sampling frequency, however the bandwidth of the signal needs to considered, the rule for obtaining the sampling frequency of any probe must be at least 2. 5 times greater than the maximum frequency present. 3) Show how the sampling rate was determined for this experiment.What was the sampling rate? For a flow around a cylinder an empirical relation between the vortex shedding frequency and Reynolds number (Re) is used to find the sampling rate. The relations hip below is used to find the frequency in the flow where the Strouhal number is 0. 2, diameter (d) is 15mm and the free stream velocity (U0) is 10m/s. St=fdU0=0. 1981-19. 7Re? 0. 2 Then by simple algebraic rearranging the frequency is found to be 133. 3Hz. Therefore the maximum frequency experienced is 2f = 2*133. 3 = 266. 6Hz.To obtain the optimum sampling frequency we simply by using Nyquist theory multiply the maximum frequency by 2. 5 providing an optimum sampling rate of 666. 5Hz. The values for the sampling rate were taken as 330Hz, 660Hz and 1320Hz for experimental purposes to study the over and under sampling of data. 4) In the experiment the hotwire was calibrated in terms of velocity vs (E-E0)2. Plot out the calibrations for U = B((E-E0)2)n and the various polynomials. Compare the different lines. Which is the best to use? Figure [ 1 ] Figure [ 2 ] Figure [ 3 ]Figure [ 4 ] From the above graphs is can be seen that the best calibration to use is the cubic calibration (figu re 2) as this fits the actual velocity line more accurately. 5) If the velocity higher than the ones calibrated foer was measured, which calibration is likely to give the best extrapolated data? Figure [ 5 ] Figure [ 6 ] Figure [ 7 ] Figure [ 8 ] From the above graphs it can be seen that the worse extrapolated data is found using the quartic calibration and the best extrapolated data can be found using the linear calibration of A([V-Vo]^2)^n.Also higher order polynomial extrapolation can produce invalid values and as a result the error will magnify as high order of polynomials are used, so therefore the linear relationship is recommended. 6) In a fast Fourier transform (FFT) the data in the time domain is converted to the equivalent data in the frequency domain. The original data can therefore be considered as the sum of a series of sine waves of regularly spaced frequencies, with different magnitudes and phases. How is the frequency interval in the FFT determined? How can the frequ ency interval in an FFT be reduced?What impact could this have on an experiment? The frequency interval can be obtained by dividing the sampling rate by the number of samples used. For 660Hz the number of samples is 1024, so therefore the frequency interval is 660/1024 = 0. 6445. The frequency intervals can be reduced by increasing the number of samples used; this is advantageous as it gives a more accurate representation of the original signal. 7) Considering the FFT data, what can be done in an experiment to isolate genuine signals from random fluctuations in the data? Give an example of this in graphical form.Figure [ 9 ] Figure [ 10 ] From figure 9 it can be seen that the peak is unobtainable as the data is very noisy which could be due to disturbances. However this can be overcome by averaging the FFT which allows us to easily identify peaks which can be seen from figure 10. 8) In this experiment, why are 2 frequency peaks seen on the FFT when the hotwire is near the centre lin e? 2 frequency peaks can be seen on the FFT at the centreline due to the 2 vortices induced by the cylinder but as you move away from the centre line only one of the vortices is predominant.The two peaks occur at 129Hz and 250Hz. 9) With increasing distance from the centreline, how does the FFT distribution change? Include graphs to illustrate this for various locations across the wake. From the below figures it can be seen that as you move away from the centre line the peaks in the FFT distribution disappear. Figure [ 11 ] Figure [ 12 ] Figure [ 13 ] Figure [ 14 ] Figure [ 15 ] Figure [ 16 ] 10) Plot the probability distribution histograms of velocity for various positions across the wake.What does the histogram show and how can the variation in the histograms be explained in terms of the properties of the flow? Figure [ 17 ] Figure [ 18 ] Figure [ 19 ] Figure [ 20 ] Figure [ 21 ] Figure [ 22 ] By comparing the above probability distribution figures it can be seen that with distanc e away from the centreline the flow velocity develops a more uniform velocity. It can be seen that within the 40mm distance away from the centreline, the probability distribution of the velocity produces wide distribution of velocities; this is due to the various velocities inside the wake and turbulence.For distance more than 40mm away the probability distribution of velocity becomes more uniform, which implies the vortices play no role in affecting the flow at these distances away from the centreline. It can also be seen that the flow speed at these distances increases as the flow diverges and accelerates around the cylinder. 11) Plot a graph showing the variation of mean velocity, RMS velocity and turbulence intensity with distance across the wake. What physical phenomena in the flow are causing the distribution to be the shape they are?What do the results say about the size of the wake compared to the size of the cylinder? Figure [ 23 ] Figure [ 24 ] Figure [ 25 ] The vortices i n the flow cause turbulence to occur behind the cylinder which causes the distributions to change. It can be seen from figure 23 that the velocity changes instantaneously as you move away from the centreline, it can also be observed that from 45mm away and more the velocity start to become more uniform and fluctuate around the free stream velocity. From figure 25 and 25 from 45mm and onwards the RMS and RTI decrease.From the above graphs it can be deduced that the size of the wake is 45mm from the centreline or a total width of 90mm, which is 6 times the diameter of the cylinder. 12) What are the major sources of error likely to be in this experiment? Try and give a numerical estimate to the possible error(s) in the data. Some of the likely sources of error that may occur during this experiment are the calibration process as the hotwire was only calibrated at the centreline and as the hotwire was lowered using screw mechanism which it not totally accurate, there was no calibration o f the at the new position.Another source of error can be due to pressure fluctuations, and due to the velocity being measured using the pressure differences, these fluctuation can cause the velocity to vary. Another source of error could be the assumption of the flow being 2-d as turbulence is a 3-d. To calculate the error, I used the measured velocity table and the theoretical linear calibration velocity. Taking the average error, the percentage error in the experimental data was 5. 8%. Within a range Can not measure supersonic velocities

Laptops in the Classroom Essay

Today’s technological advances are ever-changing our world, making life â€Å"easier† and more convenient. Tasks that once may have taken hours of notes, reading and organizing the many pages of documents, can now literally be accomplished in minutes with today’s portable computers. Most would agree that in our learning institutions laptops have become an essential tool in the success of students. Where this agreement usually ends is on the question of the use of laptops while in the classroom. On the one hand some would argue that the use of laptops allow students to research information on the fly, and to take notes, having them neatly organized and even saved to a central database to make them easily accessible by any internet connected computer at any location. On the other hand, some say laptops lead to unnecessary interruptions and disturb the instructors and students alike. My own view is that laptops disrupt the class in many ways and should not be allowed in the classrooms during instruction. First of all, while in class or lecture, the constant clicking of the keys can prevent the instructor from being heard, especially when there is more than one or two keyboards clicking away. Also, the brief seconds that your mind lends to focus on the operation of computing could possibly the moment that a student misses key information. And there is a disadvantage to not giving your undivided attention to an instructor’s lesson, on a larger scale this becomes an obstacle for  McLemore 2 effective learning. As noted in an article, Laptops in Class: A Professional Virus by Maureen A. Howard: Our brains just aren’t designed to do multiple tasks simultaneously and do them well. Admittedly, I can agree that laptops provide many advantages for students including consolidating and organizing multiple subjects. But as I stated before, the operation of laptops in class can be a distraction, and at which point does that distraction become too much to be allowed? Having laptops in class brings up the issue of browsing the internet, playing games, communicating, or the great many other things that one could do, other than following along with the class instruction. Furthermore there is a potential for theft and damage to students property, which could also lead to students arguing and possible physical altercations. All of which impede the progress of learning in the classroom environment. In addition, one should also consider that the traditional method of taking notes by hand and later transferring those notes to a laptop also gives the student the opportunity to go over that information once again. This process helps students commit the information into long term memory. In conclusion, I believe that the negative aspect of using personal laptops in the classroom environment far outweighs the positive reasons to have them, and thus laptops should not be allowed in the classroom during instruction.

Discuss in DETAIL six Cognitive distortions Essay

Discuss in DETAIL six Cognitive distortions - Essay Example Due to such a perception, an individual may end up having a self perception that may be distorted or completely untrue. A third distortion is magnification or minimization which occurs when an individual ignores the positive and over thinks about the negatives or ignores the negative and only thinks about the positives in himself or herself. Personalization is a fourth kind of distortion occurs when an individual connects an unrelated event to his/her state and believes that it is connected to him/her. For example: an individual may believe that the death of a loved one was caused by them. The fifth kind of cognitive distortion is All-or-nothing thinking which takes place when an individual is of the idea that events should happen as he/she may want it to be or they have completely failed. Selective abstractions take place when an individual chooses a certain part of an event to prove that he she was experiencing depression at that