Extra Sensory Perception Essay Example for Free

Extra Sensory Perception EssayThe term Extra Sensory Perception, or stand by sight, denotes the ability to gather information by means not related either to common five sences or to persons previous experience. The most common abilities classified as extrasensory perception are telepathy, precognition and clairvoyance. Studies of ESP, together with vast number of other unexplained psychic abilities attributed to human brain such as, but not limited to, pyro- and psychokinesis, star(p) projection, bioenergetic healing and so on are grouped under the term of psychic phenomena.Abilities grouped under the term of ESP were rumoured to exist from times of old, but customary science started to examine them only in late XIX century. Since 1884, British Society for Psychical Research began to experiment with card-guessing, the ESP definition method bordering mingled with clairvoyance and telepathy (the subject was to tell the card in sealed opaque envelopes, to tell the card at ce rtain place on the denounce back in other room and so forth). At 1930s, they were joined by American experiments (by J. B. Rhine and L.Rhine), and the results were thoroughly analysed in order to find any deviations from statistical norm. though not all experiments were equally conclusive, approximately methods of guessing were found to produce results unexplained by statistics. Sir Ronald Aylmer Fisher (1990), English mathematician who was assisting the Society for Psychical Research in analysis of its experiments, wrote In any chance the frequencies differ much more than than they would in 748 cards drawn independently and truly at random. The 12 degrees of liberty score 50. 5267 and of this the preference component contributes 24.1360, a very marked preference, nearly five times its standard error. in Table E you certainly put up got a phenomenon. In British Society for Psychical Research Ina Jephson and S. G. Soal did their experiments with playing cards after it was fou nd that people choose some cards more often than others based on numerical value, set, or color, J. B. Rhine in Duke Univercity, North Carolina, decided to find a more emotionally neutral media for experiments. A set of special cards with simple symbols on them was developed, called Zener cards after the name of Karl Zener, their inventor.There were 25 cards total in the pack, with 5 each of circle, cross, star, curly lines and square. With only 5 types of cards it was easier to analyse the results first by manual accounting, then by computers. Now, Zener cards are the common practice used in ESP experiments. Later, J. B. Rhine (1940) and his Duke Univercity colleagues collected information about their own studies and previous experiments in ESP from XIX century to present time. Considering Duke Univercity experiments, they reported some most curious results, differing from statistical expectationsIn one set of experiments, 2400 total guesses were made and an excess of 489 hits w ere noted The statistical probability of this outcome is equivalent to odds of 1,000,000 to 1 27 of the 33 sets of experiments produced statistically significant results. In Soviet Russia, independent researches in ESP were made with significant successes. Ostrander and Schroeder (1970) in their review Psychic Discoveries Behind the crusade render cite the results of experiments by some Karl Nikolayev and Yuri Kamensky.Not only they have sent and received telepathic pulses from each other universe in diverse cities 400 miles apart, but their brains were scanned while performing acts of ESP. It was reported that different areas of the brain were becoming active depending on what kinds of information visual or sound was being telepathically received. More, the telepathic pulses Nikolayev claimed to be receiving were also indicated by EEG machine connected to his brain, and the distinction between long and short pulses was definite. Soviet parapsychologists studies were later pu t to some use by Western inventors.Ostrander and Schroeder (1997) in their second book tell about some experimental military devices based on ESP principles extremely reliable sources tell us the Western military saw possibilities in Sergeyevs remote sensors and did some inventing of their own. They created a special helmet to help pilots handle the split second moment of maximum danger when an enemy plane carrying a rocket approaches. The unconscious percieves an event an instant before it becomes conscious to us. The sensors in the helmet pick up a shift in the brains fields in advance and automatically trigger firing a missile before the pilot could do it consciously.Still, in that location is a wide field of capitulums that lies before the parapsychological studies. For example, the fact is noted that people who believe in ESP show better results in parapsychology tests than those who do not. This itself is one of the best arguments in favour of accepting ESP as science-prove n. Journal of the Society for Psychical Research (2007) tells about one case of such studies Seventy-four participants were recruited through media advertisements. The experimenters employed blind coding and recoding procedures, and let the participants touch the objects to obtain impressions. Six trials were completed.Participants were categorised as either psychic, ESP skilled (N = 44), or non-psychic, ESP experients (N = 30). The ESP skilled group scored higher psi-hitting than the ESP experients group, who scored at the level of mean chance expectation. The difference between groups was significant. So, the question of whether the ESP can be classified as scientific fact is still open, but there are very definite arguments for it to be considered as such.ReferencesFisher R. A. (1990). Statistical Inference and Analysis selected correspondence of R. A. Fisher, edited by J. H. Bennett. London Oxford University Press J. B. Rhine, J.G. Pratt, Charles E. Stuart, Burke M. Smith Josep h A. Greenwood. (1940). Extra-Sensory Perception after Sixty Years. A Critical Appraisal of the Research in Extra-Sensory Perception. New York Henry Holt Co. , Inc. Ostrander, S. Schroeder, L. (1970). Psychic Discoveries Behind the Iron Curtain. New Jersey Prentice Hall. Ostrander, S. Schroeder, L. (1997). Psychic Discoveries The Iron Curtain Lifted. New York Marlowe and Company. Parra A. Argibay J. C. (2007, July). Comparing psychics and non-psychics through a token-object forced-choice ESP test. Journal of the Society for Psychical Research, pp. 80-90.

The Importance of Being Earnest by Oscar Wilde Essay Example for Free

The Importance of Being Earnest by Oscar Wilde EssayOscar Wildes The Importance of Being Earnest is about a young man who leads a double life, in whenever he wants to escape the reality, along with his obligations and real-life dealings. The story is not just about the life of the young man, dirt, also known as Ernest, but it is also about taking life in a much serious way. In edict to do so, Oscar Wilde has reformed or improved the detonates of life that he has satirized in the story. One aspect which Wilde has reformed in the story was in the life of yap/Ernest. He is described as a seemingly responsible and respectable young man. He is also well-off, as he owns a country estate. But at some time in the story, it was found out that Jack was an adopted child, and that he was found in a handbag by the train station. Jacks past and his present life is so ironic that it effectively builds up his instance. It is both shady and surprising that for a baby who was supposedly lef t alone in a train station would be able to survive and be undefeated when he grows up. Jack have almost everything that he desires, wealth, fame among those who know him, love in the person of Gwendolen so who would ever think that a person the likes of him was adopted as he was abandoned in the train station as a child?Oscar Wilde reformed Jack/Ernest quotation in order to make the story much more interesting. Despite his somewhat unlikely past, he is now a wealthy man, leading a happy life. If his character wouldnt be reformed or improved, he wouldnt be rich or attractive, following the fact that he was an abandoned child. The interesting part of the story though is not his rags-to-riches life instead it was his double life that he leads, in the form of Ernest.Another one Wildes reform to the character he was satirizing was when the issue of marriage was introduced in the story. Jack Worthing is in love with Gwendolen Fairfax, and so is Gwendolen to Jack. But the problem is tha t Gwendolen fell in love with Jack because of her compulsion to the name Ernest. Jack introduced himself to Gwendolen as Ernest for her to love him, but he still has to face his problem, as Gwendolen intends to marry only the man whose name is Ernest. Oscar Wilde reformed Jacks character by actually trying to become Ernest his alter ego that he uses as a scapegoat to preserve his morality as Jack Worthing.For Jack, the name Ernest is his way to keep an honorable image in place. By using Ernest, Jack is able to escape his real life, as he is bound by duties and obligations, as well as a reputation he must protect. Ernest actually provides Jack with an excuse he conveniently uses whenever he wants to do things that he can do when he is under his real identity. It is also his disguise, as Jack wants to remain being seen as upright and moral, and with Ernest as his mask, he is able to misbehave.His character is reformed when it was the time for him to make the choice to be Ernest or be Jack. It was love that drove him to that deciding corner, as Gwendolen was obviously in love with him being Ernest, and he is not sure if she would still love him if he is Jack. In the end, Jack apologized to Gwendolen, which she returns with forgiveness, saying that she did so because she is sure that Jack would change to make up for his mistakes.The Importance of Being Earnest is Oscar Wildes way of satirizing the general tolerance for hypocrisy in the Victorian concept of morality, and this is shown by the character Jack Worthing. He wants to adhere with notions of duty, honor, and respectability, yet he lives a double life, Ernest, hypocritically flouting those notions.

Analysis of Tractors and Tractor Engineering Features

Analysis of Tractors and Tractor Engineering FeaturesWhich tractor will serve you best?Contrary to popular belief, tractors are employ in much more than agricultural work. Tractors are used in mowing, land-clearing, landscaping, construction, excavation, and livestock and industrial applications.Tractors come in 2-wheel takes, equal and unequal 4-wheel drives with different types of tires and horsepower and multifunctional attachments. These factors influence the tractors capabilities and price.Classifications of tractorsTractors are classified on the basis of engine power and drive2-wheel drive tractors are best for mowing level fields and traversing long distances.4-wheel drive tractors are suitable for attaching loaders, and have the traction to work well on unleveled surfaces. They have a large share in the depleted and medium-sized tractor market and break out resale value.Small range tractors have an engine of less than 25 hp (horsepower). They work best on lawns.Middle ran ge tractors have engines of 25-60 hp and behave well in commercial applications, nurseries, and farms.Heavy range tractors have engines of 65 hp and higher. They are suitable for heavy work such as work on and baling. Tractors of 200 hp are usually seen in large commercial farms.Important characteristics of tractorsThe embody and applicability of tractors depends on these characteristicsTires Tractors have pneumatic tires (for traction in loose muddy fields), industrial tires (for heavy loading and mowing), and turf tires (for minimizing surface damage).Cabs Though costly, enclosed cabs protect slatterns from extreme climates. Air conditioned cabs consume 3-4 hp and are suitable for middle and heavy range tractors only.Transmissions Tractors can have manual transmission or the more expensive clutch-free hydraulic transmission that uses up some horsepower.Attachments Tractors can have attachments attached to the back and front such as rakes, spreaders, grapples and harrows. The n umber and type of attachments is directly proportional to the tractors cost and horsepower.Fuel Tractors play on unleaded or diesel fuel, or grain.Safety features Tractors are bulky machines. Lights and flashers provide safety on road. Latest models are equipped with an operator presence switch that turns off the engine in the operators absence. Rollover protection structures (ROP) protect the operator from getting crushed in a rollover accident.Types of tractor attachmentsAttachments lend greater functionality to tractors. more or less attachments use the power of the tractors engine to work through a power take-off (PTO) drive shaft. Common attachments includeBackhoe for digging precise holes.Mowers come in motley typesrough cut and brush mowers for heavy workfinish mowers for detailed workbush mowers to mow acreageside mowers to mow side ditches on roadsBox blades for scraping, leveling or grading soil.Buckets for moving piles of rocks and soil.Plows and blowers to move snow.F ront-end loader for leveling, carrying and loading.Services offered by tractor dealersTractors are expensive and hardy machines that take constant maintenance. While many owners perform routine tasks such as replacing filters, changing oil, and greasing joints, dealers can also offer maintenance contracts for a small fee. In any case, dealers should provide a maintenance manual for the tractor and a basic demo of its functions.Dealers can offer financing options for purchasing tractors as they cost anywhere between $10,000 and $100,000. Attachments also cost a few thousands. A second hand tractor can be purchased at lower cost, but you should discipline it is in working order and comes with at least 1-2 months warranty. Some dealers may also have imported tractors that are sold semi-legally at cheap prices. However, relieve parts are a major problem with these tractors and safety features may not meet standards.The dealer should have sufficient workforce to pick and resurrect yo ur tractor in case of a fault or breakdown. They should have the necessary parts and attachments as and when required. You should compare quotes from multiple vendors before making your choice. Price and after-sale service are equally important.

What Extent Are Human Rights Claims Culturally Specific Politics Essay

What Extent Are benignant Rights Claims culturally Specific Politics EssayThe atrocities committed against individuals in events much(prenominal) as slavery, the 2 World Wars, the Holocaust, and the apartheid in S issueh Africa caused the issue of gentlemans gentlemanity dutys to become a major concern for all nations across the globe, particularly for the western nations. The issue of kind rights, however, has its roots in natural law theories of the 17th and 18th centuries and was much(prenominal) firmly schematic contemporarily in the Universal Declaration of Human Rights and other covenants, conventions and declarations that were issue forthd from it. At the core of this issue, is the controversy as to whether sympathetic rights be oecumenic or culturally relative. A nonher area of disputation is the efficiency of the world(prenominal) community in the face of cultural practices that serve to discriminate against individuals, such as female genital mutilation, fo r example. The use of secondary data was applied in carrying out this investigate to address the above-mentioned issues.In this search, I will attempt to find out how can universal human rights exist in a culturally diverse world. As the international community becomes increasingly integrated, how can cultural diversity and integrity are respected? Is the African Union security socialisation effective?There is no universal consensus on the definition of human rights because although human rights speak to everyone, polar acculturations have different concepts as to what human rights are and what they really specify.Universal human rights do non impose one cultural standard, rather one legal standard of minimum protection inevitable for human dignity. As a legal standard adopted through the United Nations, universal human rights represent the hard-won consensus of the international community, not the cultural imperialism of some(prenominal) particular region or set of tradit ions.Jack Donnelly2defines human rights as a special class of rights, that is, the rights that one has simply because one is a human being. They are thus moral rights of the highest order. John Humphrey3states, when we speak of human rights we usually have in mind certain rights which pertain to individual men and women because they are human beings and for no other reason. While it may not be true that all human beings are born(p) free and equal, they are born with certain rights. Some of these rights, just not all of them are called human rights. Human rights are those rights without which there can be no human dignity. They derive from the inherent dignity of the human person as mentioned in the preambles to the two United Nations Covenants on human rights. It follows that every one possesses these rights in full equality.Human rights are intended for everyone, in every culture and are the birthright of every person.Human rights also hold that every individual has certain righ ts protect him or her against the abuse of power by governments.CULTURAL RIGHTSCulture4can be defined as a shared, learned, symbolic system of values, beliefs and attitudes that shape and model perception and behaviour. Culture5is the totality of knowledge, skills, traditions, and customs, specific to a group of people or a civilization. It is transmitted socially from generation to generation and not by genetic inheritance, and largely determines individual behaviour. It encompasses a very broad aspect of social life techniques, manners, morals, lifestyle, systems of values, beliefs, religious observances, family organization, etc.Every human being has the right to culture, including the right to enjoy and develop cultural life and identity. Cultural rights, however, are not un ensnareed. The right to culture is limited at the point to which it infringes on another(prenominal) human right. No right can be used at the expense or destruction of another, in accordance with internatio nal law.Similarly, cultural rights do not justify torture, murder, genocide, discrimination on grounds of sex, race, language or religion, or violation of any of the other universal human rights and fundamental freedoms earned in international law. Any attempts to justify such violations on the basis of culture have no validity under international law.A Cultural ContextThese are some of the issues, concerns and questions underlying the debate over universal human rights and cultural relativism.Cultural relativism is the assertion that human values, far from being universal, turn a great deal according to different cultural perspectives. Some would apply this relativism to the promotion, protection, interpretation and application of human rights which could be interpreted differently deep down different cultural, pagan and religious traditions. In other words, according to this view, human rights are culturally relative rather than universal. Taken to its extreme, this relativism would pose a risky threat to the effectiveness of international human rights laws that has been painstakingly set up with international standards, and consequently widespread disregard, abuse and violation human rights would be give legitimacy.When a traditional culture does effectively provide protection, then human rights by definition would be compatible, posing no threat to the traditional culture. As such, the traditional culture can absorb and apply human rights, and the governing State should be in a better position not hardly to ratify, but to effectively and fully implement, the international standards.Traditional culture is not a substitute for human rights it is a cultural context in which human rights must be established, integrated, promoted and protected. Human rights must be flaked in a way that is meaningful and relevant in diverse cultural contexts.Rather than limit human rights to suit a given culture, why not draw on traditional cultural values to reinforce t he application and relevance of universal human rights? There is an increased need to emphasize the common, core values shared by all cultures the value of life, social order and protection from imperative rule. These basic values are embodied in human rights.Communitarians argued that rights and justice are culturally specific and cannot be applied across borders. For communitarians, human rights cannot be defined universally because they only have meaning in terms of the social fabric of a particular society and culture that proclaim them and does not apply in the real world. Human rights would be something different in Saudi Arabia compared to the UK. Cosmopolitans see rights to have universal meaning when they are based upon human reason and that universal rights prevail over particular values because they express universal reason.6Make Peace HappenIn the last decade, the security culture of the African Union (AU) has developed in some relatively radical ways. There are also ne w opportunities to advance the responsibility to protect (R2P) agendum adopted by the United Nations General Assembly World Summit in 2005. This agenda commits individual states and the international community to protecting populations from genocide, war crimes, ethnic cleansing, and crimes against humanity. If successfully implemented in Africa, R2P would make a tremendous contribution to promoting stability and peace.The African Union (AU) has declared 2010 the African Year of Peace and Security with its campaigns slogan Make Peace Happen. Turning this statement into reality rests in large part on the members of the AUs Peace and Security Council, the most important African institution for the day-to-day management of peace and security issues.Within the AU, support for the responsibility-to-protect principleemerged from broader concerns with promoting human rights standards on the continent.If a government proves either unable or unwilling to protect its civilians from large sca le loss of life then international society bears a collective responsibility to protect them and can revolutionize the sovereignty of the state in question7.Security cultures are patterns of thought and argumentation concepts of the role, legitimacy and efficacy of particular approaches to protecting values.8.9Moreover, security cultures help establish the core assumptions, beliefs and values of decision-makers about how security challenges can and should be dealt with, through the process of socialization.The African Unions Constitutive Act pledges respect for human rights and rejects the widespread impunity that has characterized gird conflict and political repression in many African countries. In grave circumstances such as occurred during the Rwandan genocide, the Constitutive Act authorizes the African Union to intervene. tether African states in the African Union have also adopted a New Partnership for Africas Development (NEPAD), a program to lift Africa out of poverty t hat explicitly recognizes the importance of democracy, human rights, and the rule of law for economic development. NEPAD has also developed its own code of governance and system for peer review, but its pledges on human rights remain vague.The African Union will only succeed if it replaces the culture of impunity with the culture of accountability.10Indeed, the record of the AU was not much more impressive in the field of security-related activities. The organisation was mainly involved in setting norms and standards, but it was never effective in enforcing them. In the few cases of international wars (Somalia/Ethiopia 1977-78 and Eritrea/Ethiopia 1998-2000) the AU played virtually no role.The AU was also committed to the principle of non-alignment, but the fact that no member state ever coupled any formal alliance with outside powers is probably mainly due to the fact that no alliance memberships were ever on offer, and the AU certainly failed in preventing the actual involvement o f the great powers in conflicts on the continent.Without strong and interventionist versions of international distributive justice and measures associated with subsistence, economic and welfare rights, the AU will be powerless.The constructivists approach to analysing regional security dynamics as summarized by Hurrell, involves a number of central ideas first, that, in contrast to rationalist theories, we need to pay far more attention to the processes by which both interests and identities are created and evolve, to the ways in which self-images interact with changing material incentives, that both interests and identities are shaped by particular histories and cultures, by domestic factors, and by ongoing processes of interaction with others.11In order to guarantee human security at the personal, institutional, and structural-cultural levels, power relations and relations of power should be underscored within a socio-cultural context.In other words, emancipation or sustainable p eace-building occurs when one understands the true nature of social-cultural categories such as class, gender, ethnic equality, etc. A great deal of peace-building deals with issues of security within a positivist-rational epistemology.Human security is therefore a situation or a condition free of soil or threats to an individuals, or communitys well-being, including freedom from direct physical attacks and psychological integrity. To ensure such security involves the understanding of human security located at the structural, institutional, and personal levels of society.It involves an attempt to understand human security or insecurity in terms of those who experience them. What motivates the dissatisfied to agitate and their beliefs as marginalized individuals should be seriously taken into account, instead of merely imposing policies on them. Constructivism as an approach is a useful theoretical lens in understanding the true nature of things such as collective violence, class, gender, and racial issues, among others. Within these units emancipation occurs when the accurate picture of the situation is understood. Constructivists operate on the ontological assumption that actors are shaped by the socio-cultural milieu in which they live.Constructivists try to go beyond the descriptive aspect of a situation to an understanding of the motives of a community in order to apologise how they behave and what causes political outcomes. Constructivism is not only limited to the influence of norms and social understandings on different actors (individuals, groups, and states), it also investigates why the norms and inter-subjective beliefs often had different influences on different actors. Many constructivist studies have emphasized the ways in which ideas and norms become more powerful in their effect than conventional conceptions of strong state interests.In conclusion, this essay has considered many different arguments, cultures in the world are in many cases co nflicting and the diversities in the world can make it difficult to have a universal consensus, especially when it comes to personal rights. While it is worth considering the western interpretation of human rights, the human rights doctrine should not have to make allowances for differences in morality. When it considers a right to be fundamental and important, this should mean it is universal. The function of Human rights is to improve the individuals life and the way it does this is not to make allowances for customs and traditions that should not be considered acceptable. For the clock being it is a virtual impossibility to make economic compatibility a reality, as the differing political systems do not allow for this. However this does not mean that human rights in general are not compatible with multiculturalism. We are all humans, with basic wants and needs. Being granted these wants and needs does not take outdoor(a) anything from the differing cultures on the contrary the Human rights protect our right to be different, through cultural identity and religion amongst other rights. The basic rights of humans should not be based on culture but on what improves peoples life in the most effective way. Diversity does not affect human needs, and therefore should not affect, at least at the most fundamental level, the universal doctrine of human rights.2194 Words

The Free Air Jet Experiment

The Free Air Jet ExperimentIntroductionThe Free Air Jet Experiment is designed to give insight into the fundamentals of a free jet at various locations inside and outside the meat region. The core region is a location in the endure field where the fuse has a f number that is approximately the same as the velocity coming from inside the jet. This experiment will provide data to place the location of the core region. Besides defining the core region this experiment will provide information on the velocity changes outside the core region, sight point rank at various locations, the impulse settle at various locations, showing that the exiting jet width varies with distance, and how the bucket along varies along the center streamline as a number of distance from the exit.In order to best interpret the results obtained in this lab there are several(prenominal) assumptions that must be made. In this site the point is in a steady state, the air from the jet and the stationary a ir in the surroundings is assumed to be uninterrupted, the flow is incompressible, and the produced flow is axis vertebra symmetric.The local fluid revivify can be determined from comparability (1)V = (2*(po p)/)1/2 (1)where the variable V is the magnitude of the velocity, po is the stagnation pressure, p is the static pressure of the fluid, and is the density of the fluid. From equivalence (2) the set flow range can be determinedmd = A (V)dA = 020R (Vr)drd (2)where md is the mass flow rate, A is the surface area that is being integrated over, is the density, r is the radius, and R is the maximum radius. The momentum flow can also be determined via equation (3)Pd = A (V)VdA = 020R (V2r)drd (3)where Pd is the momentum flow rate. The local sound speed, c, was found from equation (4)c = (kRT)1/2 (4)where k and R are constants outlined by the physical properties of air and T is the temperature of the medium. In this experiment k = 1.4, R = 287, and T = 298. Knowing c, the mach speed can be calculated via equation (5)Ma = V/c (5)where Ma is the mach speed.MethodsAn apparatus was constructed in such a way that a tube that emits air is placed evenly and blows into a Pitot tube that can be moved evenly or in a radiate outward direction. The volumetric flow rate is a constant for this experiment. From here the beginning set of data to be recorded is the centerline speed of the jet at various horizontal distances aside from the center of the tube. This is first to be done by recording the pressure close to the pipes exit and then taking pressure measurements increasing the distance from the Pitot tube to the pipes exit by small intervals. This will provide a relationship of mass flow rate and momentum flow to the distance from the air exiting the pipe. Change the volumetric flow rate and repeat the preceding procedure.To determine how the mass flow rate and momentum flow rate will vary radially from the center streamline, another(prenominal) experiment is to be conducted. In this case a measurement is to be taken at the center streamline at some fixed horizontal displacement with a constant volumetric flow rate. From here the Pitot tube is to be moved radially outward in small increments such that several data points can be obtained at that horizontal displacement. At a few other horizontal displacements the same procedure is to be followed.Results and DiscussionFrom frame of reference 1 it can be seen that up to about 0.03 m from the exit, the centerline speed doesnt change much. This defines the core region starting from the exit of the tube to 0.03 m away from the tubes exit. Outside the core region the speed of the air decreases as the distance from the exit is increased. When measuring the pressure from the Pitot tube the pressure had a precision of +/- 0.005 inches of H2O. This margin of error created an uncertainty in the centerline speed of about +/- 1 m/s. Knowing that the uncertainty of the speed is about 1 m/s, this unce rtainty will propagate into the length of the core region. The core region can then be determined to have a length of 0.03 m +/- 0.01 m. Centerline speeds were recorded for a volumetric flow rate at 70 L/min and at 50 L/min. As expected, as the volumetric flow rate increases the centerline speed also increases.Velocities of varying radial distances from the centerline were measured and compared with each other at different horizontal distances from the tube in invention 2. At a radial distance of 1 cm, the velocity doesnt change much with respect to the velocity measured at the centerline for all horizontal positions. This defines the average radial fate of the core region as 1 cm. This radial component decreases as a function of the distance from the pipes exit. The farther the Pitot tube is moved outward from the core region the slower the velocity becomes. It can also be noticed that at the walk-to(prenominal) horizontal displacement the velocity drops off quicker as a functio n of radial displacement as apposed to the larger horizontal displacements. This is caused by the verve dissipating out to the sides as the horizontal displacement increases. The energy dissipation is caused by eddies or more commonly swirling in air. An eddy is the terminology used to describe the circular motion a fluid takes as it displaces from the source. This plays an even bigger role in mass and momentum flow rates.Looking at Figure 3 it can be seen that the mass flow rate increases as the horizontal displacement increases. This increase is caused by eddies. What happens here is the source puts out a finite amount of mass at some constant rate. Eddies then form and this swirling motion of the fluid reaches out into the stagnant fluid and pulls more mass in to the system. Now more mass is being brought into the system causing the mass flow rate to increase. As the horizontal displacement increases the mass flow rate begins to level off, as seen in Figure 3, and will eventuall y begin to decrease. Here more mass is comfort being brought into the system however now the velocity has decreased significantly and this decrease is now causing the mass flow rate to decrease.Similarly to the mass flow rate the momentum flow rate is effected by eddies. In this case the momentum flow rate has reached a peak where the mass flow rate is still increasing and is decreasing where the mass flow rate begins to reach a maximum, as seen in Figures 3 and 4. The momentum flow equation and mass flow rate equation only differ by one term. In the mass flow rate equation there is a V component and in the momentum flow equation there is a V2 component. Having this extra component is what causes the momentum flow to peak before the mass flow rate. The velocity is decreasing and the mass is increasing as a function of horizontal displacement, but the momentum flow depends more heavily on the velocity component.The mach speed was then calculated from the maximum velocity obtained. In this situation the mach speed was found to be 0.087 with a local sound speed of 346 m/s. If the mach speed is greater than or equal to 0.3 than this implies that the flow is compressible. By having a mach speed that is smaller than 0.3 implies that the flow is incompressible.Conclusion and RecommendationsBy conducting this experiment a fairly spotless core region was able to be defined. The core region was defined as having a horizontal displacement of 0.03 m +/- 0.01m and an average radius of 0.01 m. The mass flow rate and momentum flow were both found to be heavily dependent on mass and velocity. Both the mass flow rate and the momentum flow were affected by eddies, which is the swirling motion of air, that pulled stagnant mass into the system causing the mass to increase as the flow got further away from the core region. The velocity of the air decreased as the displacement from the pipe exit increased. Momentum flow was affected by the velocity more so than the mass flow rat e because of the V2 component in the momentum equation. This flow was deemed incompressible due to the mach speed being smaller than 0.3.For better results in the future, give the jet with an independent compressor would eliminate any variance in volumetric flow rates caused by other users of the compressor. This would then generate a high precision when measuring pressures.Figure 1. This graph shows the relationship amid the centerline speed and the distance from the exit.Figure 2. This graph shows the relationship between the normalized velocity and the radial distance from the tubes exit.Figure 3. This graph shows the relationship between the calculated per measured mass flow rate and horizontal position.Figure 4. This graph shows the relationship between the rate of momentum flow and horizontal position.

Copper Essay -- essays research papers

Copper Copper is a mineral. it is not a plant or a animal. Copperis a metallic metal. It can never be broken down into differnet substances bynormal chemical means. Copper was one of the first metals known to humans.People like it because in its native condition, it could easily be beateninto weapons or tools. Copper has been one of the most useful metals for over5000 years. Copper was probably employ around 8000 B.C by people living along theTigris and Euphrates rivers. In 6000 B.C, Egyptians learned how to hammer tomentuminto things they wanted. Around 3500 B.C, People first learned how to meltcopper with tin to make bronze. So the period between 3000 B.C and 1100 B.Cbecame known as the bronze age.Today, some of the leading states of the copper industryare Arizona with 747,000 all of a sudden tons, Utah with 187,000 little tons, New Mexicowith 161,000 short tons. Some other leading countries are Chile with 1,422,000short tons, United States with 1,203,000 short tons, Soviet U nion with 650,000short tons, and Zambia with 596,000 short tons.When copper is being mined, both Native copper and copper oreare usually found. The highest grade of copper ore is pale silvery gray. Minersused to be always in danger in copper mines. Today, we have redu...

Damsels In Address Essay -- essays research papers fc

Damsels in Address It is clearly evident that many fairy tales of childhood tend to shape the reader. sealed moral codes and ideals are tightly woven into the text of many fairy tales, promoting or denoting a characters actions. In the Grimms fairy tales Cinderella, briar pipe Rose, and Rapunzel, the heroines of these tales exhibit strong behavioral codes, thus providing opportunity for the young womanish reader to relate to the damsel, or to model herself to behave in a alike(p) fashion. In accordance with Marcia R. Liebermans essay, " Some Day My Prince Will Come Female Acculturation Through the Fairy Tale," I agree with the assertion that decreed traits in fairy tale indicate reward, while the negative characteristics bring misfortune. A heroine in a fairy tale is to be seen as a mentor, a model to easily portray what is right, and what is inherently wrong. For instance, a passive heroine proves to bring eventual reward through pain and suffering, while a female who is assertive, either mentally or physically, is shunned. Suggestions integrated throughout the text of the three tales provide strong evidence as to the desired morals and values of the parliamentary law in which the tales were written. Through the examination of tales, their inherent messages surface. Childrens perceptions of fairytales can go a long way towards shaping social interactions among said children. Passivity is a major player in the personalities of Rapunzel, Cinderella, and sleeping Beauty. Rapunzel relies completely on a determined prince to escape her imprisonment Cinderella uses a fairy godmother to help her cause and Sleeping Beauty waits until Prince Charming wakes her. Children could see these characterizations of women and begin to intertwine them with their own budding personalities. Boys begin to see women as weak and Girls may interpret these behavior traits as indicative of their being the lesser part of relationships with men. Sexual roles, although not o vertly discussed within the pages of fairytales, becomes the focus for these young people. Marcia Lieberman reiterates the idea of inherent roles stating, "a picture of sexual roles, behavior psychology, and a way of predicting outcome or fate according to sex"(Lieberman, 384). As they grow older, the children may begin to fall into the roles they discovered in the fairytales boys begin ... ...uch beauty, the maiden is chosen, married, and loved by the hero. This process leads not only to beauty by means of passivity, but also to security and happiness. Assertion equates not only with beauty, but ugliness and misfortune as well. Boys in turn develop a sense of responsibility and see themselves in the dominant role. In other words, they must save the day by getting the girl and then of course spreading wealth. For the young girls of the fairy tale audience to tell apart that they must act out roles similar to the behavior of the heroines in the three tales under examinatio n, thus guaranteeing eternal wealth and happiness. Boys will see the same roles vie out and revert to the breadwinning hero role. Lessons portrayed throughout the story are epitomized by Marcia Lieberman to support the notion of love, success, and failure. Bibliography Works Cited Grimm, Jacob and Wilhelm Grimm. The Complete Fairy Tales of the Brothers Grimm. Trans. and with an introduction by Jack Zipes. 2 vols. Toronto Bantam Books, 1988. Lieberman, Marcia R. " Some Day My Prince Will Come Female Acculturation Through the Fairy Tale." College English 34 (1972/73) 383-395.