Atomistic Fabrication Technology to Enhance Accuracy

Atomistic Fabrication Technology to Enhance Accuracy Importance of Atomistic Fabrication Technology to Enhance Machining Accuracy During Electrochemical Machining of Metals Ritesh Upadhyay, Arbind Kumar P.K. Srivastava Abstract Atomistic fabrication technology fully utilizes physical and chemical phenomena with atomistic and electronic understanding. In the case of mechanical machining many defects are introduced when pushing the tool on the workpiece surface and then atoms on the workpiece surface are removed by the displacement and multiplication of such defects. Therefore many defects remain on the workpiece surface after mechanical machining. Machining accuracy is considerably affected by disturbances such as thermal deformation and external vibration because removal depth is dependent on the cutting depth of the tool and is very difficult to manufacture precision products by mechanical machining. In the case of atomistic fabrication technology surface atoms are naturally removed by chemical reaction caused by reactive species and therefore no deformed layer on the workpiece surface. A very high-precision product can be easily manufactured with stable physical and chemical phenomenon used for removal re action. In this paper possibility of atomic level removal of work piece (Iron workpiece) have been explored. The current and voltage requirements for removal of few thousand atoms will be calculated along with. the mechanism of removal of metals in relation with over-voltage and conductivity. Introduction The essence of nanotechnology is the ability to work at the molecular level, atom by atom, to create large structures with fundamentally new molecular organization. Compared to the behavior of isolated molecules of about 1 nm (10 -9 m) or of bulk materials, behavior of structural features in the range of about 10-9 to 10-7 m exhibit important changes. Nanotechnology is concerned with materials and systems whose structures and components exhibit novel and significantly improved physical and chemical processes due to their nanoscale size. The goal is to exploit these properties by gaining control of structures and devices at atomic, molecular, and supramolecular levels and to learn efficient manufacturing and use these devices 1-4. Maintaining the stability of interfaces and the integration of these nanostructures at micron-length and macroscopic scales are all keys to success. New behavior at the nanoscale is not necessarily predictable from that observed at large size scales.The most important changes in behavior are caused not by the order of magnitude size reduction, but by newly observed phenomena intrinsic to or becoming predominant at the nanoscale5-6. These phenomena include size confinement, predominance of interfacial phenomena and quantum mechanics. Once it becomes possible to control feature size, it will also become possible to enhance material properties and device functions Being able to reduce the dimensions of structures down to the nanoscale leads to the unique properties of carbon nanotubes, quantum wires and dots Nanotechnology is the exploitation of the novel and improved physical, chemical, mechanical, and biological properties, phenomena, and processes of systems that are intermediate in size between isolated atoms/molecules and bulk materials, where phenomena length and time scales become comparable to those of the structure. It impl ies the ability to generate and utilize structures, components, and devices with a size range from about 0.1 nm (atomic and molecular scale) to about 100 nm by control at atomic, molecular and macromolecular levels. Novel properties occur compared to bulk behavior because of the small structure size and short time scale of various processes7-8. Electrochemical Reaction When the current passed through a NaCl electrolyte solution following reaction occure NaCl = Na+ + Cl H2O = H + + OH The positive ions moves towards cathode and negative ions moves towards anode. Each Na+ ions gain an electron and is converted to Na . Hence Na+ ions are reduced at the cathode by means of electrons. Cathode Reaction: Na+ + e = Na Na +H2O = NaOH + H+ 2H+ + 2e = H2 It shows that only hydrogen gas evolve at cathode and there will be no deposition Anode Reaction: Fe = Fe2+ +2e Fe2+ + 2Cl = FeCl2 Fe2+ + 2OH = Fe (OH)2 FeCl2+ 2OH = Fe(OH)2 + 2Cl 2Cl →Cl2 + 2e 2FeCl2 + Cl2 = 2FeCl3 H+ + Cl = HCl 2Fe(OH)2 +H2O +O2 = 2Fe(OH)3 Fe(OH)3 + 3HCl = FeCl3 + 3H2O FeCl3 + 3NaOH = Fe(OH)3↓ + 3NaCl Theoretical Aspects Building block atoms play an important role in future atmostic fabrication technology. Material removal rate for removal of Fe work piece at atomic level have been calculated by using Faraday’s law. Where MRR = Metal Removal Rate , A = Atomic weight, I = Current, Z = valency, F = faraday’s constant . The results are shown in figure 1, Fig 1 Plot of Metal Removal Rate against Current Density, A=55.85,Z=2,F=96500 It is clear from the figure that very low current is needed for atomic scale removal of iron atoms from the iron work piece. The requirement of voltage for removal of iron at atomic scale have been calculated using ohm’s Law and shown in figure 2 Fig 2 Plot of Metal Removal Rate against Voltage, where specific conduction=0.0387ohm-1 cm-1others  parameter are same as in figure 1. It is clear from the figure that voltage requirement is very low. The current and voltage data for removal of few thousand atoms shows that conductivity and over-voltage play important role in current carrying process. Effect of electrolyte conductivity on MRR: Electrolytes are substances that become ions in solution and having capacity to conduct electricity. The electrolyte has three main functions in the ECM process. It carries the current between the tool and the workpiece, it removes the product of the reaction from the cutting region, and it removes the heat produced by the current flow in the operation. Electrolytes must have high conductivity, low toxicity and corrosivity, and chemical and electrochemical stability. The rate of material removal in ECM is governed by Faraday’s laws and is function of current density which depends upon the concentration of electrolyte with increase in concentration of electrolyte the MRR increases continuously up to a limiting value after which if further increase in concentration is made the MRR decreases due to decrease in ionic mobility. Effect of Over voltage: The over-voltage is the important parameter which restrict the material removal rate and is sensitive to tool feed rate and equilibrium machining gap. Material removal rate decreases due to increase in over voltage and decrease in current efficiency, which is directly related to the conductivity of the electrolyte solution. Over voltage was calculated as: à ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã‚ Ã¢â‚¬Å¾V = V – where à ¯Ã‚ Ã¢â‚¬Å¾V = over voltage, V = applied voltage, Ï = density of work piece, F = Faraday constant, K = conductivity / specific conductance of electrolyte solution, A = atomic number of work piece metal, Ye = equilibrium gap and f = tool feed rate. The variation of over voltage with equilibrium gap is shown in Figure 3 which indicate that over-voltage decreases linearity with increase in equilibrium gap. When equilibrium gap approaches to zero, over voltage approaches to applied voltage. Figure 4 shows variation of tool feed rate with overvoltage, which shows that over voltage decreases sharply with penetration rate and goes to negative side after a certain tool feed rate. Negative value of V, seems to be unreal because un-matching long range values of penetration rate for single fixed value of equilibrium gap. Fig 3. Plot of Over voltage against equilibrium machining gap Fig 4. Plot of over voltage against penetration gap Conclusion: The effort is made to focus on the importance of atomistic fabrication technology with the effect of key factors like over voltage and electrolyte concentration influencing the quality of machined surface and dimensional accuracy. The application of this technology during machining of metals and alloys proves that the electrochemical reactions can be used for nanometer accuracy, which allows high precision machining. The set up including power supply, electronic circuit, tool and electrolyte feed devices have been proposed to perform nano electrochemical machining in order to enhance the machining accuracy. References: Mukherjee S.K, Kumar S , and Srivastava P.K effect of electrolyte on the current- carrying process in electrochemical machining. J . Mechanical Engineering Science 221,1415 -1419 2007. Stotes J, Lostao A, Gomez C, Moreno , Baro A.M. Jumping mode AFM imaging of biomolecules in the repulsive electrical double layer ultra microscopy 1-6 2007. McGeough, J.A. principles of electrochemical machining chapterIII (chapman,Hall.London) 1974. Ma, and R. Schuster, Locally enhanced cathodoluminescence of electrochemically  fabricated gold nanostructures, Journal of Electroanalytical Chemistry, vol. 662, pp. 12–16, 2011. McGenough J A, Leu M, Rajurkar K P, et al. â€Å"Electroforming process and application to  micro/macro manufacturing. CIRP Annals—Manufacturing Technology†, 50(2): 499-514, 2001. Zhang Z Y, Zhu D, Wang M H. â€Å"Theoretical and experimental research into electrochemical  micromachining using nanosecond pulse† Chinese Journal of Mechanical Engineering;  43(1): 208-213, 2007 [in Chinese]. Lee E S, Baek S Y,Cho C R. â€Å"A study of the characteristics for electrochemical micromachining with  ultrashort voltage pulses† The International Journal of Advanced Manufacturing Technology; 31(7-8):  762-769, 2005. Schuster R., Kirchner V, Allonue P, and Ertl G, â€Å"Electrochemical micromachining,† Science 289, 98–  101_2007. Datta M, Shenoy R. V, and Romankiw L. T, â€Å"Recent advances in the study of electrochemical  micromachining,† ASME J. Eng. Ind. 118, 29–36,1996. Datta M, â€Å"Microfabrication by electrochemical metal removal,† IBM J. Res. Dev. 42, 655–669,1998.   Rajurkar K.P, Kozak J, and Wei B, Study of Pulse Electrochemical Machining Characteristics â€Å"Annals  International College for Production Research† Vol. 42, 231-234, 1993. Hocheng, H., Kao, P. S. and Lin, S. C., â€Å"Prediction of the Eroded Profile during Electrochemical  Machining of Hole,† Proc. JSME/ASME Int. Conf. Materials and Processing, pp. 303_307 (2002).   Keown, Mc. P. A., â€Å"The Role of Precision Engineering in Manufacturing of the Future,† Annals CIRP,  Vol.36, pp. 495_501 (1987). â€Å"Electrochemical Machining in Production Technology, HMT, Bangalore, Tata McGraw Hill  Publishing Company, New Delhi, India, p. 478 (1980).

Are video games good for kids? Essay

Are video games bad for kids? Back in time in mid 90’s the best source of entertainment for kids was the television that have a great variety of cartoons for the kids to have good entertainment and learn good things. But now they have video games that right now are the top selling industry in the world according to Barbara Ortutay of MSNBC online â€Å"the selling of video games on July of this year went to $1. 19 billion with a 17 percent more than last year. But the only concern for the society is that kids are getting to much access to violent games and that makes the video games bad for them. As said by David Walsh, Ph. D. National Institute on Media and the Family he said in this report that â€Å"Children are more likely to imitate the actions of a character with whom they identify. In violent video games the player is often required to take the point of view of the shooter or perpetrator. Video games by their very nature require active participation rather than passive observation. Repetition increases learning. Video games involve a great deal of repetition. If the games are violent, then the effect is a behavioral rehearsal for violent activity. † He also said that â€Å"Exposure to violent games increases physiological arousal, increases aggressive thoughts, increases aggressive emotions and increases aggressive actions. † Video games should not be at the reach of any kid because more all less they all involve violence like for example Mario games that all of them involve killing enemies for success, or crash bandicoot that have the same type of game experience as Mario. Naturally there are always people that do not think the same way like ABC news. com that make a report of social critic Steven Johnson, author of the controversial new book, â€Å"Everything Bad Is Good for You. â€Å"he argues that video games — violent or not — are making children smarter. â€Å"You have to manage multiple objectives at the same time,† he said. â€Å"You have to manage all these different resources, and you have to make decisions every second of the game. † Video games typically require the player to complete a number of specific tasks to win. â€Å"Well we have to get the Jeep, we have to ride up a hill, kill the snipers, drive past the mountainside, go into another giant palace and activate the remote,† said one 10-year-old interviewed by ABC News while playing the Halo 2 video game, designed for the Microsoft Xbox gaming system. But children should not be exposed to that type of learning because they are going to be more aggressive and â€Å"less positive people toward life† according to David Walsh. ABC also site from Johnson that â€Å"Children who play such video games exhibit what experts call â€Å"fluid intelligence,† or problem solving. † â€Å"They have to discover the rules of the game and how to think strategically,† said James Paul Gee, a University of Wisconsin-Madison curriculum and instruction professor. â€Å"Like any problem solving that is good for your head, it makes you smarter. † â€Å"Intelligence test scores in the United States are rising faster than ever, experts say. One possible reason: Studies show video games make people more perceptive, training their brains to analyze things faster. † But the truth based on studies is that â€Å"Studies measuring cognitive responses to playing violent video games have shown that violent games increase aggressive thoughts. These findings have been found for males and females, children and adults, and in experimental and correlational studies. † Said David Walsh on his report. In conclusion violent video games should be restricted for kids in all the way possible because they will develop more aggressive actions, less caring and aggressive emotions in comparison with regular games that also have that responses and that also should be avoided for the raising of a kid. People can say that the help to problem solving and to fast response to other thing but the truth is that the make more damage than a helping. Works Cited Walsh, David. â€Å"Video Game Violence and Public Policy† culturalpolicy. edu. 2001. September 30, 2008. http://culturalpolicy. uchicago. edu/conf2001/papers/walsh. html. Ortutay, Barbara. â€Å"July video game sales jump 28 percent† MSNBC. com. August 14, 2008. September 30, 2008. http://www. msnbc. msn. com/id/26208654/ Argumentative essay Angel Bello 802-08-0724 October 1,2008.

The Ozone Behavior and Variability of Thickness

The Ozone Behavior and Variability of Thickness Introduction The ozone O3has good and bad effects on the Earth. For illustration the stratosphere, where most of the ozone is located, absorbs harmful UV beams. Because the ozone plays such an of import function on human life and the ecosystem, it is of import to invariably endeavor to larn more about the ozone and record and analyze informations. Harmonizing to Shaw, while both O and ozone together absorb 95 to 99.9 % of the sun’s UV radiation, merely ozone efficaciously absorbs the most energetic UV visible radiation, known as UV-C and UV-B, which causes biological harm ( Shaw, 2014, p. 3 ) . When UVC is absorbed by free O groups in the stratosphere, they break apart into two O atoms, and so they combine with O2molecules to organize stratospheric ozone Oxygen3, shown by the undermentioned reactions: Oxygen2+hvi O + O O + O2+ M i O3+ M wherehvis ultraviolet radiation and M is an inert molecule that enhances the reaction of O with O2. The ozone is created, destroyed and created once more in rhythms, of course. While there are legion reactions of how the ozone is destroyed of course, anthropogenetic substances/processes are increasing the devastation the ozone. Examples of anthropogenetic substances/processes would beCFC’s such as infrigidation, air conditioning and aerosol propellents.Halons ; man-made chemicals that can be used to snuff out fires.Burning of fossil fuels.If the ozone continues to be destroyed faster than the natural procedure of being created, less and less of the harmful UV visible radiation will be absorbed in the stratosphere and will finally do it to the Earth’s surface. The UV radiation to the surface would ensue in effects to the worlds and the ecosystems such as the addition of skin malignant neoplastic disease instances, development of cataracts, lessening in photosynthetic pro ductiveness, an addition in vaporization rates and lessening in precipitation. To protect the ozone’s hereafter from anthropogenetic substances the Montreal Protocol, adopted in 1987, with extra understandings, required states to diminish the sum of atmospheric concentrations of CFCs. With these understandings, concentrations chlorine began to diminish in 1995 ( Sahw, 2014, p. 6 ) . Analyzing the information recorded about the ozone thickness provides grounds on whether the ozone is consuming or non, penetration on the effects of anthropogenetic substance/processes and aid in the formation of theories, such as the ozone repairing itself. This assignment will supply a general apprehension of the tendency of longitudinal sets -60/-55, -40/-35, -10/-5, 15-20, 30/35 and 50/55 for the old ages of 1997 – 2005. MATERIALS AND METHODS Data was provided for this assignment by Professor Shaw. Harmonizing to the hand-out provided the information was collected by the Total Ozone Mapping Spectrometer ( TOMS ) for the old ages of 1997 – 2005. The TOMS instrument provides scientists with a planetary position of the stratospheric ozone bed in existent clip with measurings for the full universe every 24 hours ( Shaw, 2014, p. 6-7 ) . The provided information was manipulated in an excel spreadsheet to concentrate on latitudinal sets -60/-55, -40/-35, -10/-5, 15/20, 30/35, 50/55. The given informations was so manipulated and graphs created utilizing excel to be better represented and more easy understood. Each latitudinal set of involvement was individually graphed over the eight twelvemonth span to compare by the months of January, April, July and October. Then the one-year mean for each latitudinal set of involvement was calculated ( non including the months with zero readings ) and put into a graph demoing the tend ency of the entire ozone thickness over the eight twelvemonth span. More specific inside informations may be found in the lab instructions titledThe Chemistry of the Ozone Layer( Shaw, 2014, p. 8 ) . Additionally, a press release by Mindy Shaw and the text edition,Global Environment: Water, Air and Geochemical Cycles, were available with information sing the behaviour of the stratigraphic ozone. After reading the stuff sing the stratigraphic ozone the graphs were interpreted and hypothesis’ formed. Consequence Figure 1: The one-year mean ozone thickness recorded by the TOMS for the latitudinal sets -60/-55, -40/-35, -10/-5, 15-20, 30/35, 50-55 for the old ages of 1997 – 2005. The ozone thickness is measured in Dobson Units ( DU ) . The one-year mean calculated does non include the nothing ( 0 ) records. Figure 2: The monthly tendency of the ozone thickness recorded by the TOMS for the latitudinal set -60/-55 for the old ages 1997 – 2005. Figure 3: The monthly tendency of the ozone thickness recorded by the TOMS for the latitudinal set -40/-35 for the old ages 1997 – 2005. Figure 4: The monthly tendency of the ozone thickness recorded by the TOMS for the latitudinal set -10/-5 for the old ages 1997 – 2005. Figure 5: The monthly tendency of the ozone thickness recorded by the TOMS for the latitudinal set 15/20 for the old ages 1997 – 2005. Figure 6: The monthly tendency of the ozone thickness recorded by the TOMS for the latitudinal set 30/35 for the old ages 1997 – 2005. Figure 7: The monthly tendency of the ozone thickness recorded by the TOMS for the latitudinal set 50/55 for the old ages 1997 – 2005. Discussion Harmonizing the Figures 2 – 7, the variableness in the tendencies of the latitudinal sets gets larger the further off from the equator they are. Vice versa the closer to the equator the less variableness there is, as seen in Figures 4 and 5. This correlativity is due to the Earth’s joust. As the Earth jousts towards the Sun the Earth receives more sunlight and consequences in longer yearss. This addition in sunlight additions the sum of high-energy solar atoms striking the ambiance which consequences in an addition in coevals of ozone. The information besides shows a tendency of a thicker ozone bed near the poles during the spring seasons for the single poles respectfully ( Figure 2 and Figure 7 ) . The North Pole spring season begins around March while the South Pole spring season begins around September. A upper limit of thickness is shown for the North Pole in Figure 7 and South Pole in Figure 2. This addition in thickness during the spring season could perchance be due to the accretion of ozone transported from the Torrid Zones during the autumn and winter seasons. The twelvemonth to twelvemonth informations shows that surprisingly the ozone thickness is bit by bit increasing over clip ( Figure 1 ) . In fact, out of the latitudinal sets of involvement, the latitudinal set -10/-5 was the lone one to diminish in thickness over the eight twelvemonth span. This information entirely ( including merely the old ages of involvement from 1997 – 2005 ) does non back up the theory that the ozone is being depleted quicker than it is being of course created ; nevertheless, the correlativity of the alteration should be noted as due to the lessening of anthropogenetic substance by the Montreal Protocol, adopted in 1987, and other extra understandings that decreased the atmospheric concentrations of CFCs. This proves an opposite relationship that a lessening in anthropogenetic substance consequences in an addition in ozone thickness. Decision Because the ozone plays such an of import function to human life and the ecosystem, it is of import to understand the behaviour and variableness of its thickness. Knowing the ozone’s behaviour allows us to protect our hereafter and cognize to diminish the usage of anthropogenetic substances/processes. By analysing informations over old ages, scientist can foretell whether or non the ozone is being depleted faster than it is of course being created or if it is repairing itself. Harmonizing to the informations the ozone fluctuates in thickness globally due to latitudinal place, seasonal alterations and the increase/decrease of anthropogenetic substances. While latitudinal place and seasons is a natural procedures in assisting with creative activity and devastation rhythm of the ozone, the sum anthropogenetic substances is something that can be controlled. The information proves that a lessening in anthropogenetic substance consequences in an addition in ozone thickness. Appendix: Appendix 1: The monthly norm and one-year mean ozone thickness recorded by the TOMS for the latitudinal set -60/-55 for the old ages 1997 – 2005. The ozone thickness is measured in Dobson Units ( DU ) . The one-year mean calculated does non include the nothing ( 0 ) records.Monthly Average and Annual Mean Ozone Thickness For the Latitudinal Band -60 / -55 Thickness measured in Dobson Units ( DU )YearJanFebMarAprMayJunJulAugSepOctNovDecAnnual Mean1997309.5297.8292.4294.9292.9297.2301.7314.6323.6326.8323309.33071998304.5295.4289.1290.2299.3318.7323.1317.9316.3334.9332310.93111999301.5292.8288.8290.6299.9309.8316.3314325.5333.6329.8306.53092000297.2293.9291.6291.4291.3295.2296.5295.7321.7344.5337.3322.13072001307.8297.9295.1296305.6315.8315.4310321328.8330309.23112002301.6292294.7291.8299.5313.5327.5338.8351.5367.9343325.23212003313.3304.2295.2293.9297299.1303.6299315.3344.1342.2321.13112004307.3299.6295.7302.1301.1308.2310.6321.4334.9344329.4313.73142005308.8295.1287.4287.9290.5299.6303317.4329.5342.9338.60309Appendix 2: The monthly norm and one-year mean ozone thickness recorded by the TOMS for the latitudinal set -40/-35 for the old ages 1997 – 2005. The ozone thickness is measured in Dobson Units ( DU ) . The one-year mean calculated does non include the nothing ( 0 ) records.Monthly Average and Annual Mean Ozone Thickness For the Latitudinal Band -40 / -35 Thickness measured in Dobson Units ( DU )YearJanFebMarAprMayJunJulAugSepOctNovDecAnnual Mean1997270.3269.2267.3266.2271.6280.5290.1305.6319317.3302.9285.82871998277.4272.8271.8273.8284.3300.8316.3323335.8329.9312.8295.63001999271.5268.9267.8268.3272.9286302.8318.8327.4327311.6286.62922000274.5268.7265.2268277.9296.1312.2330.2336.4331.1309.6286.62962001278.9271268.2269.9279.6301.1319.3326335.4332.1317.8297.63002002284.3279.8274.5276.4282.5296311.3326.6330330.8311.3297.73002003284.3279.5273.9272.6276.4296314.8331.4339.5334.8316.6292.93012004280.4273.8270.5263.5270.8279.9294.5312324319.6305.7285.72902005275.7272.1271271.2281.7303.8319.7335.2340.7335.6309.80302Appendix 3: The monthly norm and one-year mean ozone thickness recorded by the TOMS for the latitudinal set -10/-5 for the old ages 1997 – 2005. The ozone thickness is measured in Dobson Units ( DU ) . The one-year mean calculated does non include the nothing ( 0 ) records.Monthly Average and Annual Mean Ozone Thickness For the Latitudinal Band -10 / -5 Thickness measured in Dobson Units ( DU )YearJanFebMarAprMayJunJulAugSepOctNovDecAnnual Mean1997254257260.5260.3255.4256.8258.7259.5265.5266.8259.7247.92591998242.2245.9248.7249.1249.6250.1256.6264.9272.9273.7269.4267.32581999260.9262260.6262.2262.1261.3264.5267.5273.1272.7265.3258.22642000257.7258.4260.7261.1259.7258.5258.2263.6269264.2258.5253.52602001253.1249.5251.8252.6248.8247.5250.8257.4269.5273.3272.8270.12582002269271.4269.6267.2261.5258.9258.5263.9268.3268.8264254.62652003252.1253.5255.7255.4254.1255.9257.4262.9268.9264.3260258.52582004254258.9261262.7261.4260.6264.5267.6273.3267.3261.9256.62622005253.2253.2252.4251.6251.1252.7256259.8264.2264.5257.80256Appendix 4: The monthly norm and one-year mean ozone thickness recorded by the TOMS for the latitudinal set 15/20 for the old ages 1997 – 2005. The ozone thickness is measured in Dobson Units ( DU ) . The one-year mean calculated does non include the nothing ( 0 ) records.Monthly Average and Annual Mean Ozone Thickness For the Latitudinal Band 15 / 20 Thickness measured in Dobson Units ( DU )YearJanFebMarAprMayJunJulAugSepOctNovDecAnnual Mean1997236.5239.8253.2267.7271.9273.2276.8272.7268.1263254247.72601998243.8250.5262.4276.3281281.6282.3280.5276.1265249.4244.22661999240243255.1272.2280.9282.8282.2281277.9269.3259.7254.72672000256.3262.9270.8283.4285.7283.6281.5280.2275.7264253.9247.82702001251.1253.4267.9283.8285.3283.6282.9281.3274.7264.2252.3241.42682002241.4248.6259.1275.3282.5284.5282278.9273.4265.2256.9245.42662003244252.4270.2284.1289.8289.4287.2284.4277.8263248.3241.82692004236.7242.5257.4271.1280.6286285.3281.9277266.8258.9253.42662005254.9260.2268.2277.4283279.4279.3276.1272.9263.1248.80269Appendix 5: The monthly norm and one-year mean ozone thickness recorded by the TOMS for the latitudinal set 30/35 for the old ages 1997 – 2005. The ozone thickness is measured in Dobson Units ( DU ) . The one-year mean calculated does non include the nothing ( 0 ) records.Monthly Average and Annual Mean Ozone Thickness For the Latitudinal Band 30 / 35 Thickness measured in Dobson Units ( DU )YearJanFebMarAprMayJunJulAugSepOctNovDecAnnual Mean1997279.5286.7300.3306.9303299.4291.6283.8279.2278.7277282.52891998291.7303.7319.4325.6324.6310.3297.6293.3283.6272.7262.1263.32961999270.1281290.8305.2311303.2297.7293284.4274.7274.1277.32892000292.5297.2310.3315311.4301.1296.4291.9282.5270262.3270.42922001285.8292.8309.3320.9317.6304.2297.7292.9280.6272.9266.9266.92922002270.9277.1296.9314.6316.1309.3299.8292.8283.6274.8271.52812912003290.5309.1317.9323.4321.8311.3300.7294.9283.9271.3264267.42962004273.1283.1295312.7316.9308.5301.6293.2283.8276.5269.7279.22912005297.6308.9314.2320.3320.2308.1296.9290.9280.8268261.20297Table 6: The monthly norm and one-year mean ozone thickness recorded by the TOMS for the latitudinal set 50/55 for the old ages 1997 – 2005. The ozone thickness is measured in Dobson Units ( DU ) . The one-year mean calculated does non include the nothing ( 0 ) records.Monthly Average and Annual Mean Ozone Thickness For the Latitudinal Band 50 / 55 Thickness measured in Dobson Units ( DU )YearJanFebMarAprMayJunJulAugSepOctNovDecAnnual Mean1997364.4383.4384.9371.4359.2348.3330312302.7298.7308.83423421998380397.9407.4401.2381.4364.2339.6320.6308.6304.6329.5342.13561999365.3387.8413.6391372.9354.7330.8314.9305.6306.7312.2341.43502000359.8383.6387377369.8348.1327.4309301.2304.5323.2362.13462001377.5405.3407.3395.9373.6356.3332.4315.6307.5310309.5343.23532002361371.6397.2389375.9356.2331.3316.2303.7308.4318.93553492003378398.4409.5401.8381.2357.7340.1322307301.4318.3334.83542004367.2386.1399.5393.7373.6354.3333.4320.4304.7297304.8329.93472005350.2374.5390.5382.6370.2351.7332.7315.3301.7296.6

Justice Is Good For His Soul Essay - 1927 Words

â€Å"Justice is the art that gives each man what is good for his soul†. This statement is implies that justice is goodness and doing what’s right. This also implies that being a good person and doing good actions will in turn benefit the people by improving their Lives. Justice is good because it sets a standard of goodness that people in society would have to uphold and follow. Therefore this would lead to an environment of positivity and goodness for individuals. The Mariam-Webster dictionary gives the world one definition that states â€Å"Justice is the maintenance and administration of what is just especially by the impartial adjustment of confliction claims†. However According to book one of The Republic by Plato, Justice is conveyed as a very complex topic that cannot be defined by a single definition. The topic of justice is discussed and broken down by Socrates, who asks the question â€Å"what is justice?† , he seeks out a definition from the company around him and through different given definitions of Justice, Socrates proves that there is no one definition for justice because there are many contradictions and exceptions that have to be considered in certain situations. In this essay I will discuss how justice relates to goodness and how it can be â€Å"the art that gives each man what is good for his soul† by using the Socrates’ discussion on the various definitions of justice from book one in The Republic by Plato. The first argument is given by Cephalus, an old friend ofShow MoreRelatedJustice Is The Legal Or Philosophical Theory Of Justice1503 Words   |  7 PagesJustice is the art which gives to each man what is good for his soul. Discuss. â€Å"Justice is the art which gives to each man what is good for his soul† and that is simply to say that justice is identical with, or inseparable with philosophy. (Cahn, Political Philosophy, 1-136) Justice is an order and duty of the parts of the soul; it is to the soul as medicine preserves the health of the body. In its current and cardinal definition is a just behavior or treatment; a concern for justice, peace, andRead MoreAttaining Virtue in The Republic of Plato695 Words   |  3 PagesIn the Republic of Plato, the philosopher Socrates lays out his notion of the good, and draws the conclusion that virtue must be attained before one can be good. For Socrates there are two kinds of virtue; collective and individual. Collective virtue is virtue as whole, or the virtues of the city. Individual virtue pertains to the individual himself, and concerns the acts that the individual does, and concerns the individual’s soul. For Socrates, the relationship between indivi dual and collectiveRead MoreJustice Is The Best Choice For Its Own Sake1307 Words   |  6 Pagesincludes justice. In this essay I will be answering the question of whether justice in soul is choice worthy for its own sake. While this topic is quite complex, I will use a mixture of personal analysis as well as evidence from the book itself to assert that justice in soul is the best choice for its own sake. In the following paragraphs I will discuss what justice in the soul is, why justice in soul is choice worthy and finally to what extent this choice entails. Justice in the soul is not anRead More Model of Justice in Platos The Republic Essay1705 Words   |  7 PagesModel of Justice in Platos The Republic In what is perhaps his most well-known text, The Republic, Plato explores the fundamental concept of justice, how it is observed in the world, and its application to the lives of men. When he identifies the good in Book VI, which is reality and knowledge in their true forms, Plato also describes the visual world of shadows and false reality that people perceive and is cast by the sun. What follows from these definitions is that, while justiceRead MoreAnalysis of Plato ´s Republic974 Words   |  4 PagesRepublic, perhaps Plato’s most famous work focusing on justice and its values, is also home to Socrates’ unique ideas and the challenges that he faces throughout his dialogues with other philosophers. Nevertheless, justice is not the only topic that Plato examines in his work. In the Republic, a simple discussion of the justice and the different characteristics of cities, escalates into a discussion about the souls of individuals. Socrates starts out by offering an agreement to the fact that sinceRead MoreEssay on Platos Republic Justified1084 Words   |  5 Pagesdiscussion with his fellow philosophers attempting to isolate the concept of justice in the soul. In order to accomplish this task, they hypothesize that justice can occur both in the city as well as and the soul. Because the philosophers are more familiar with the workings of a city than the soul, they try to find justice by creating the ideal city, or Kallipolis. When they find justice in the ideal city, they are able to apply as well as justify the use of that same concept in the soul. From theirRead MorePlato s View On Morality And Justice875 Words   |  4 PagesPlato’s Republic proposes a number of intriguing theories, ranging from his contemporary view of ethics to political idealism. It is because of Plato’s emerging interpretations that philosophers still refer to Plato’s definitions of moral philosophy as a standard. Plato’s possibly most argued concept could be said to be the analogy between city and soul in Book IV, partially due to his expansive analysis of justice and the role justice plays in an â€Å"ideal city,† which has some key flaws. Despite these flawedRead MorePhilosophy Paper721 Words   |  3 Pagesconditions in Athens. This book is focused on the conception of justice and what it is to be just. This theory has been presented differently by each of the characters in the book, which are Cephalus, Polymarchus, Thrasymachus, and Glaucon. However, Socrates is the one who is given a challeng e: to prove that justice is good and desirable. The book starts off with Cephalus giving his own conception of justice, which he believes to be â€Å"justice is nothing more than honoring legal obligations and being honest†Read MorePlatos The Republic and The Apology1714 Words   |  7 PagesApology, the topic of justice is examined from multiple angles in an attempt to discover what justice is, as well as why living a just life is desirable. Plato, writing through Socrates, identifies in The Republic what he thought justice was through the creation of an ideal city and an ideal soul. Both the ideal city and the ideal soul have three components which, when all are acting harmoniously, create what Socrates considers to be justice. Before he outlines this city and soul, he listens to theRead MorePondering The Policy And Its Principle1744 Words   |  7 Pagesfocuses on a debate between Glaucon, Adimantus, and Socrates about whether justice is beneficial for â€Å"the sake of whatever is to be got from it in terms of pay-of f† (p.43) or if it is to be â€Å"valued both for its own sake and for what it gives rise to† (p.43). Glaucon, arguing this first point, relies on the assumption that humans are primarily driven by greed. As a result, humans believe that â€Å"doing injustice is naturally a good thing and being a victim of it is a bad thing† (p.44) but that â€Å"the badness