Impregnation of Calcium Chloride on Activated Carbon Surface

Impregnation of Calcium Chloride on Activated Carbon Surface This performance of solar refrigerator is based on some key parameters like ammonia carrying capacity, adsorption rate, heat transfer mechanism, stability etc., this paper presents the stepwise detailed preparation of consolidated calcium chloride impregnated on the surface on activated carbon. Ammonia was charged into the tube containing blocks under high pressure of 7 bars was applied during initial charging session and total adsorption was noticed in 25 minutes and the process was repeated. The total amount of ammonia adsorbed was 2.4 kg and was capable of taking more ammonia. Agglomeration effect was totally avoided by the even distribution of calcium chloride on the surface of activated carbon. Carbon was activated at elevated temperature of 700 C for optimum properties. 1. Introduction Solar refrigeration and heat pump are machines that work on wide range of temperature, especially when ammoniates or ammonia derivatives are involved as sorbents then temperature can range from -50oC to 300oC [1]. Furthermore it is environmentally benign and it does not contribute to global warming or ozone layer depletion. They do not usually utilize CFCs or HCFCs as refrigerants. This type of refrigeration is based on the phenomena of adsorption which is a surface phenomenon in which one is adsorbent and second is adsorbate or refrigerant. Two main types of adsorbents are used, one is physical adsorbent like activated carbon in which the adsorbate/refrigerant is adsorbed on its surface by week Vander Waals forces. This process  is dependent on the surface area of adsorbent. It is said that one gram of activated carbon has an area equal to the area of a tennis yard. The mass of adsorbate/refrigerant adsorbed in this process is very less because of weak Vander Waal forces. The second type of adsorbent is chemical adsorbent like Calcium chloride. When it comes to sorption capacity we use chemical adsorbents. The mass of refrigerant incorporated here could be as high as 1.05 kg/kg salt [2]. But there are two serious concerns with this, one is granular salts have very low thermal conductivity and second is the agglomeration phenomenon. The salts after some cycle s of adsorption and desorption it undergoes it swells, compacts and agglomerates, which leads to drastic reduction of the surface area and ultimately reduces the adsorption capacity. Wang et al. [3] mixed activated carbon with calcium chloride salt which overcame the phenomenon of agglomeration and observed a constant adsorption capacity. Lu et al. [4] observed specià ¯Ã‚ ¬Ã‚ c cooling power ranging from 111.2 to 865.8 W/kg using adsorption ice maker. Vasiliev et al. [5] used carbon fiber with calcium chloride and reported to have increased heat and mass transfer phenomena and overcome agglomeration. Later Mauran et al. patented a process to make impregnated consolidate blocks of calcium chloride and activated carbon. Han and Lee [6] found the thermal conductivity of different salts impregnated in expanded graphite blocks and measured values close to 50 W m-1 K-1 when the amount of expanded graphite was 70%. Ammonia is used as refrigerant and the process of chemisorption is governed the following two basic equations. 1.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   CaCl2.2NH3+2NH3  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   CaCl2.4NH3 2.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   CaCl2.4NH3+4NH3  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   CaCl2.8NH3 This process of impregnation of calcium chloride on the surface of activated carbon not only ensures uniform distribution of calcium chloride on the surface of activated carbon but also avoids agglomeration over many synthesis cycles. Balat and Spinner [7] reported that the texture of expanded graphite favors the mass transfer of the adsorbate/refrigerant which leads to improved kinetics when activated carbon combined with a salt is used in the chemisorption system. Experimental Setup and Results: The following steps were performed during formation of composites blocks of calcium chloride and activated carbon: Heat treatment of calcium chloride and activated carbon, Making solution of water and calcium chloride and mixing it with expanded graphite, Impregnation of calcium chloride in expanded graphite Calcination of hydrated calcium chloride into calcium chloride, Grinding of the dried impregnated mixture of calcium chloride and activated carbon and finally formation of consolidated blocks from powder obtained from grinding. Heat treatment of carbon: In the experiment performed by Wang et al [6] the expanded graphite is heated at the temperature of 300oC. But according to Han et al the temperature of the heat treatment influences the degree of expansion and these authors stressed on the importance of expanded graphite at temperature higher than 600oC to ensure a proper expansion. Han and his co-worker [9] also noted that the graphite expanded at temperatures above 700oC had the lowest densities and at least twice the porosity of expanded graphite treated at 500oC. The expanded graphite used has the chemical composition given in table. The heat treatment of carbon powders was carried out to increase its porosity and to remove the contaminants from the carbon powders. Carbon powders were placed in container and placed in an electric oven at 100oC for 7 hours in order to remove the moisture contents contained in it. 2kg of carbon powders were placed in two separate aluminum vessels in the oven at 100oC for 7 hours. After this it is placed in desiccators to avoid absorption of moisture contents till the start of the second process. In the last step heat the carbon powders obtained from the first step in vacuum at 700oC in a tube furnace for a dwell time of 14 minutes. Procedure: Put small amount of carbon powders in blind stainless steel tube of diameter 1.5 inches and length 15 inches and press them with a rammer so that the tube can hold a maximum amount of carbon powders. After placing the carbon powders in the tube seal the open end of the pipe with wire gauze with †¦Ã¢â‚¬ ¦ mesh and cotton cloth in order to prevent sucking of carbon powder by vacuum pump connected through a plate at the open end, tight the end cap of the tube to avoid infiltration of air into the tube. If air enters the tube in the heating process underway simply oxidation of the powder takes place. Then Place the tube in the tube furnace and connect it with the vacuum pump to remove the air entrapped in the tube and any other residual gases produce during heating of carbon powders. In the experiment by Wang et al. [2] expansion of graphite above 700 C has no significant effect on the reduction of the density of activated carbon also Hans [3] and coworkers shows that carbon expande d at a temperature of 700 C has lowest density and twice the porosity as compared to expansion at 500 C, so the temperature of the furnace is set at 700 oC giving a ramp rate of 10 oC/minute. When the temperature of the furnace reached 700 oC we set the machine at a dwell time of 14 minutes in order for carbon powder to undergo full expansion. After that the furnace was turned off and the tube was allowed to cool down. When the furnace cools down remove the carbon powders from the tube and stored it in a desiccator. The furnace takes one and a half hour to reach 700oC and 2 hours for cooling the tube as a result this process took us a lot of time. About 150 grams of carbon powder were expanded in a single run. This process was repeated until a total mass of 2.4 kilograms of expanded graphite was obtained. Tube used for holding the carbon powder in tube furnace: A tube was designed to hold the carbon powders in the tube furnace. The tube was made of stainless steel which can withstand high temperature of the tube furnace. A metal plate is welded to one end of the pipe to permanently close one side of the pipe and the other end was left open for pouring the powders into the tube. A cap was made to seal the open end of the pipe after filling with the carbon powders. The cap has an extension pipe for connecting the tube with the vacuum pump. A 300 grid mesh was used before the cap and cotton cloth was also applied to avoid the suction of carbon powders into the vacuum pump. The cap itself is made of two metal plates. One plate has a groove of 3 mm depth and a diameter equal to the pipe diameter which holds the tube in place. The two plates were bolted with each other through four nuts and bolts. The specifications of the tube are given below; Total length30 in Diameter of tube1.5 in Volume of tube0.000376m3 Density of carbon450 kg/m3 Mass of carbon0.1693 kg Table.2 dimensions of vacuum tube Heating of calcium chloride: Heat treatment of calcium chlorides was also carried out remove the moisture content and any contaminants in it. 2. Experimental procedure: The following steps are carried out during the heat treatment of the calcium chloride. Since calcium chloride salt is very hygroscopic in nature and it absorb moisture very easily. Put 4kg of calcium chloride salt in stainless steel vessels and covered the mouths of the vessels with aluminum foils. Small holes were made in aluminum foil for the moistures and gases to escape out of the vessels. These vessels were then placed in an oven at a temperature of 100oC for 10 hours to remove the moisture contents out of the calcium chloride salt. After heating calcium chloride salt at 100oC. It is then placed in desiccators to avoid the absorption of moisture by the salt until next step. Preparation of solution of calcium chloride and activated carbon using distilled water: After the heat treatment of calcium chloride and activated carbon 60% salt solution of calcium chloride in distilled water is prepared. 4kg of calcium chloride and about 7 liters of distilled water was used for making solution. Activated carbon is then stirred thoroughly in bottle and poured into the solution of calcium chloride salt and stirred for some time for uniform mixture. Based on the result of Wang et al. [6] best performance is shown when calcium chloride and expanded graphite are mixed in the ratio of 4:1. Figure: 60% solution of calcium chloride and water Figure: mixture of solution of calcium chloride and activated carbon Impregnation of calcium chloride in expanded graphite: The solution is then dried for 10 hour at 110 0C in an electric oven to remove free water and allow Impregnation of calcium chloride in expanded graphite. This figure shows the final shape of uniform mixture of activated carbon and calcium chloride salt when it loses all water in an electric oven. Calcination of hydrated calcium chloride into anhydrous calcium chloride: After impregnation of calcium chloride on the surface of expanded graphite the solution is again heated in an oven at 250oC for 7 hours [] to calcinate the calcium chloride as a result the hydrated calcium chloride become anhydrous. CaCl2.nH2O  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   CaCl2 + nH2O Grinding When the solution is dried and dehydrated in the electric oven the mixture is grinded in the grinding machine to make fine powder of the composite materials. The fine powders are then placed in desiccators in order to avoid the absorption of moistures by the powders until the next process. Die used for making consolidated blocks: In order to compress the obtained the powder above under pressure of 10 MPa using UTM it is placed in the mold shown below. The die consists of a cylindrical tube, a piston, a metal plate at the bottom of cylindrical tube and stainless steel rod. The cylindrical tube, metal plate and piston is made of mild steel. Graining of piston and cylindrical tube is done to make the surface smother so that block would not stuck in it after compression under immense pressure. No binder was used in the compaction of powder into consolidate blocks. Specification of cylinder are given below Thickness of cylindrical tube is 5mm and its height is 152.4 mm. Internal diameter is 50 mm. Specification of piston are given below Height is 15 in Diameter of piston is 49mm The piston having a hole at its center is lengthwise whose inner diameter is 15 mm. Figure: Die for making consolidated blocks of calcium chloride and activated carbon Consolidate blocks Formation: To make hollow cylinder of obtained powder under UTM following steps were followed. The resulted powder (impregnated with calcium chloride) are poured into the cylindrical part of the die through funnel, then a piston is placed on the top and a small load is applied manually to make the powder a bit compressed. The die is fitted in a UTM and pressed under 10MPa of load. [10] Figure: composite blocks of calcium chloride and activated carbon The composite blocks are placed inside the test unit, experiments were performed and test results were analyzed. RESULTS AND CONCLUSIONS: EPERIMENTAL PROCEDURE FOR CHARGING Charging of ammonia required great care because it is very dangerous and can cause blindness and even death when come in contact with human. Therefore during charging great care should be taken and all the safety rules must be followed. Before charging ammonia make sure that entire setup is leak proof and there is no leakage during charging or after charging. Compressor is connected to the generator line and whole system is evacuated from air and its noted that either vacuum is created or not by taking reading through pressure gauges attached to generator line. By performing these entire tests and conforming that no leakage is present the system is passed through the following steps. s.no.Initial pressure before chargingFinal pressure after chargingTime taken until  Ã‚   0 barMass adsorbed 1st run-1 bar6.0 bar25 min600 grams 2nd 0 bar7.0 bar39 min700 grams 3rd 0.4 bar8.0 bar30 min500 grams 4th 0.5 bar10 bar49 min750 grams 1.First of all generator line is heated for 3 hours at 100oC with the vacuum pump connected to remove the gases adsorbed in the adsorbent. This process is called degasing. 2.Secondly the system is evacuated using vacuum pump and it is placed idle for 30 minutes to find out whether any leakage is occurring or not. 3.   After the system is evacuated the compressor along with all plumbing is detached from generator line and ammonia charging hose is placed in place and tight fit is ensured. 4. Then charging line is connected with ammonia cylinder. The valve pipe connecting the ammonia tank and generator line is supplied with a manual valve. Initially the valve is opened slowly to flood the ammonia into the generator line, the pressure inside the generator line starts increasing. As ammonia starts adsorbing inside the pipe the pressured reduces while the manual valve is opened and closed at the succession of the processes. 5. After charging the system is closed using manual value to stop the further flow of ammonia and wait until the pressure in the system reduces due to adsorption of ammonia in the adsorbent material. 6.When the pressure reaches its minimum level the system is charged with ammonia again and wait until the pressure in the generator line decreases. 7.This process is repeated until 2.4kg of ammonia is charged into the system. The experimental data achieved during charging of the system is given in table given The total amount of ammonia charged into the system was about 2.4 kg. The mass of ammonia was find out using digital scale. The generator line is placed on the scale and mass is noted before and after charging. In this way mass of ammonia adsorbed is find out. CONCLUSIONS: The powders were successfully activated using available research facility. Impregnation of calcium chloride on the surface of activated carbon greatly enhances its ammonia carrying capacity and adsorption rate. The phenomena of agglomeration and swelling as depicted by literature survey was completely overcome and heat and mass transfer was efficiently enhanced. Because no binder was used in the blocks so blocks were made under relatively high compression using UTM. References: [1] E.E. Anyanwu, Environmental pollution: restructuring the refrigeration Industry as a way out, Int. J. Environ. Protect Eng. (2000). [2] Wang LW, Wang RZ, Wu JY, Wang K, Wang SG. Adsorption ice makers for à ¯Ã‚ ¬Ã‚ shing boats driven by the exhaust heat from diesel engine: choice of adsorption pair. Energy Convers Manage 2004; 45: 2043-57. [3].R.G. Oliveira*, R.Z. Wang1, C. Wang , Evaluation of the cooling performance of a consolidated expanded graphite calcium chloride reactive bed for chemisorption icemaker, International Journal of Refrigeration 30 (2007) 103e1122 R.G. Oliveira *, R.Z. Wang, A consolidated calcium chloride-expanded graphite compound for use in sorption refrigeration systems: Carbon 45 (2007) 390-3963 [4] Lu ZS, Wang RZ, Wang LW, Chen CJ. Performance analysis of an Adsorption refrigerator using activated carbon in a compound adsorbent. Carbon 2006; 44(4):747-52. [5] Vasiliev LL, Mishkinis DA, Antukh AA, Vasiliev LL. A solar and electrical solid sorption refrigerator. Int J Therm Sci 1999; 38(3):220-7. [6] Composite adsorbent of CaCl2 and expanded graphite for adsorption ice maker on fishing boats K. Wang, J.Y. Wu, R.Z. Wang, L.W. Wang Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, China August 2005 [7] M. Balat, B. Spinner, Optimization of a chemical heat pump energetic density and power, Heat Recov. Syst. CHP 13 (3) (1993) 277e285. [8] Spinner B. Ammonia-based thermochemical transformers. Heat Recov Syst CHP 1993; 13(4):301-7. [9] Han JH, Cho KW, Lee KH, Kim H. Porous graphite matrix for chemical heat pumps. Carbon 1998; 36(12):1801-10. [10] A consolidated calcium chloride-expanded graphite compound for use in sorption refrigeration systems R.G. Oliveira, R.Z. Wang. Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, China 2006.

The Success of the Massachusetts Bay Colony Essay -- American History,

In the 1600’s, two colonies were establishing themselves on the east coast of North America. In 1607, a group of merchants, known as the Virginia Company, settled at Jamestown, Virginia on the Chesapeake Bay (Divine, 72); while Puritan leader John Winthrop, stationed himself and his followers at Massachusetts Bay in 1630. (Divine, 90) Although both settlements started off relatively the same, the greater success of one over the other has caused continuous debates between many, including the descendants of these early Americans. Some might argue that the Virginia Colony was more successful than the Massachusetts Bay Colony because of the Virginia colonists’ motivation and interest in profit (Divine, 76). However, when efforts for income proved futile, this and survival became the colony's only interests. Therefore, Massachusetts proved itself to be the stronger colony and the most successful, as a result of its community development and social advancement, its economic growth, and the positive influence the government had on the Massachusetts Colony. Instead of having scattered villages like the Virginia colony, the people of the Massachusetts Bay Colony organized communities that were small and built close together. These centers were built so that villagers were able to complete a wide range of duties such as cultivating land or fetching lumber from forests (Divine, 94). This system was especially efficient for finishing these important tasks and allowing time for other agendas that were important to the colonists. The setup of the town was not just efficient. Families were able to live close together which helped create a sense of community among the people. Taverns and meetinghouses were commonly built in town, giving the ... ...ve in Virginia did not mean immigrants were free from its rule. Upon departing England, those leaving would take an â€Å"oath of allegiance and supremacy† (Virginia Ship’s List). This meant that the people owed their loyalty to the monarch of England, not to Virginia itself. The colonists of Virginia could have been frustrated that their head official was chosen by a single person, a person who had no place within their community. In fact, Berkeley, the governor the monarch of England elected, â€Å"brought high taxes on the people, increased his power at the expense of local officials and created a monopoly on Indian trade† (Divine, 85). This abuse of power is possibly one of the causes of rebellions, specifically Bacon’s rebellion. This republic government leading the Virginia Colony was an increasingly stark contrast to the Massachusetts’ Colony’s democratic government.

A critical discussion on the ethics of abortion?

Most cultures accept the premises that it is wrong to kill another human being. If murder is an absolute truth, cultures, which allow killing, can be persuaded through reason that murder is wrong. For example the Aztec empire when discovered in the 16th century would keep human blood pouring down the steps of their teocallis (Aztec temples). They did this because they believed without constant human sacrifices the cosmos would stop existing. Simple reasoning tells us this is not the case; human sacrifice doesn't make a difference to the cosmos. However, are we wrong to judge other cultures and people by are own standards? Are we not being liberal and open minded enough? Well if that is the case I will make up my own rules and kill YOU now! I believe you disagree with that. Absolute truths are there for a reason, to be obeyed. If absolute truths exist, it is logical to assume that there are absolute truths for everyone; otherwise it wouldn't be an absolute truth. For the person who cries out â€Å"I am the god of my own universe†¦ there are no absolutes,† I ask them, â€Å"are they ABSOLUTELY sure about that!!! † and, if you are the â€Å"god of your own universe†, then I am the god of mine and I say it is fine for me to kill you. Surely this is ridiculous? However the wrongness of killing is not primarily explained by the brutalisation of the killer but rather the premature ceasing of life for the individual. What the individual is being deprived of is not a past life but a future existence, a loss of future consciousness. So IF it is wrong to kill other human beings, what IS a human? Biologically humans are made when the egg with 23 chromosomes joins a sperm with 23 chromosomes; this creates a fertilised egg called a zygote, which has 46 chromosomes. Therefore this is the beginning of life. The egg by itself is not alive and the sperm by itself is not alive. Life can only come into existence when the sperm meets the egg and develops. Therefore I say to Catholics, that using contraception in sex is no more killing a potential baby than a Catholic person masturbating. A potential life is ONLY formed when the egg meets the sperm and growth begins. A sperm or egg on it's own is not a potential life just the ingredients for life. For a sperm or egg on their own do not contain the complete DNA of a human. Life is only formed when both the egg and sperm meet (we are all DNA, we are all life). SCIENCE tells us that the instance the egg meets the sperm; a complete set of unique DNA is formed that will last a lifetime. Everyone in the world is unique and science tells us this uniqueness was formed mile-seconds after conception. The unique DNA holds the complete characteristics of the future baby, child, teenager and old man. For the fetus, the baby and the old man are one in the same DNA. Therefore from the moment of conception the complete characteristic's of what we will be is established. Defendants of abortion disagree with the premises that the fetus is a human being from the moment of conception and instead believe as Thomas states â€Å"only a bit of tissue that will become a person at birth. † Therefore this statement suggests a person's rights only begins after birth. This statement therefore is saying a fetus in its first weeks has the same rights as a fetus hours before birth. However how many people would accept to aborting a baby just before birth? Though according to the pro-abortionist the fetus is only a bit of tissue, until birth when it becomes a person with rights. However to determine the moral status of abortion you must distinguish what attributes are needed to be a member of the moral community, what does it means to be a person with rights? Mary Anne Warren defines a human being as â€Å"a full-fledged member of the moral community that is also a human being. † These are moral entities capable of respecting and inventing moral rights. To be morally human Warren identifies certain traits that must be present such as sentience, emotionality, reason and self-awareness. Therefore you can spot species, which deserve moral respect from these traits. She uses an example of an alien arriving and using these qualities to determine whether it deserves moral respect. If these behaviours cannot be identified in certain species then they cannot be given moral respect and be regarded as â€Å"a person. † She distinguishes this â€Å"moral sense† from the â€Å"genetic sense† of a human. Warren believes that for abortion to be wrong you must prove whatever is genetically human to also be morally human. She believes fetus's can only be genetically human and therefore do not fall under the category of a human, thus forfeiting human moral rights. Despite Warren's observation that a seven-month-old fetus can feel pain and respond to external stimuli, she reasons that this still does not put the fetus under the category of personhood. Therefore she concludes a seven month fetus is no more a person than none human animals. However if only those people who have psychological attributes of a person can enter into moral contracts with others, what then is our duty not to inflict pain and suffering on animals or to another level small babies. Suffering however is a misfortune when experienced by us, so we should therefore uphold and shun away from participating in the suffering of animals or other humans. For if we are going to kill animals or infants we will do so in a way, which brings about the least amount of suffering. Regarding animals Kant has argued that treating animals with care is important for the sole reason that in doing so mans heart won't harden in their treatment of humans. However Feinburg shows treating infants with care is important because they need to be trained in moral behaviour so by treating them with care benefits us. However this argument shows, just as we can treat with care the infants we intend to keep we can kill the infants we intend to discard. In the same way we can treat with care the fetus's we intend to keep but discard the fetus's we don't want. Warren argues in some situations it can be practical anyway to abort babies or even young infants. This is in cases when the current population is unable to sustain new life. It seems barbaric that creatures, which possess developed social structures and morals could result to such behaviour. From a utilitarian perspective however in some circumstances this outcome could be argued the most beneficial to the majority of society. However in normal circumstances it seems absurd to pick and choose infants who can live or die which could be argued have the same moral standing as fetus's or animals. Bearing in mind this Don marquis believes a different approach is needed, this approach regards the question of whether the fetus deserves the right to life. A premature death results in the loss of the future goods of consciousness therefore killing is wrong because it deprives a person of a â€Å"future like ours. Fetus's will became human and develop and grow into sentient creatures therefore having dispositions like ours, so does this mean they deserve the same chance as us? The misfortune of contracting an incurable disease is that the disease denies that person a future like ours that they would otherwise have and which they would no doubt rather have. The will to live is strong for life is sweet, and because we recognise this, doctors will do their up most to preserve someone's life who is unconscious or suicidal because they don't want to deny the person the chance to have a future like ours. In the same way a fetus or infant whether unconscious or not deserves a chance to experience future consciousness for no one would like their future conscious or the chance to have a future consciousness prematurely eliminated. However the future like ours argument does pose some problems. The degrees of wrongness in killing do seem to be in proportion with the victim's age. For a 5-year-old child has more potential future than an 80-year-old man, leading from this it would seem more right to deny an 80 year old man a future like ours than a 5 year old child. However stating as Marquis puts it, â€Å"adopting the legal equality of murder†, can put down this criticism. Some have argued that contraception is denying a potential FLO when conception is possible. However since at the time of conception there is no individual to be harmed, there is no entity with a FLO, there is just millions of possible potential FLO but nothing with an actual one. For in the case of contraception nothing has been harmed therefore their was no potential suffering. Despite pro-abortionists disagreeing to â€Å"drawing a line† to where a fetus becomes a human with rights, many agree that the fetus has become a person with characteristics well before birth. Are they drawing a line here? Do you draw the line at the birth of the child which when born still does not necessarily posses the qualities of personhood. Does this mean you can treat small babies like animal's which its characteristics are more similar to, however as I mentioned earlier, causing suffering is wrong. Surely you should treat the baby like the species it is from with the set of morals that it will grow into. All species under the banner of the same DNA should be treated with the same moral respect even if they haven't developed the capacity or will never – such as disabled people. These people have observed and agreed that a young fetus does have human characteristics such as internal organs, limbs and brain activity. However the developments of this young fetus have all come from the DNA initiated moments after conception, therefore the moment of conception is the beginning of the person, which then will grow. However pro-abortionists still argue that at conception the fetus is just a clump of cells and no more a person than an acorn is an oak tree and no more valuable than a lifeless rock. Thomson suggests that even if life begins at conception it does not necessarily follow that abortion is morally impermissible. He suggests the possibility that a women's right to decide is stronger than a fetus's right to life and that to deny a women the choice of abortion is to deny her the right to control her own body. This is outlined by the use of an analogy of a famous violinist. I would like to suggest that this is not an acceptable argument in the debate about abortion because there is a different duty in sustaining life and looking after new life, which originates in you. The analogy states that you have been kidnapped and connected to a violinist in order to keep him alive and only you have the qualities for this purpose, to unplug yourself from him would result in the violinists' death. This analogy is suggesting that all human beings have a right to life and dispite unwillingly being connected to the violinist, disconnecting yourself would not be giving the violinist a right to life. To stay consistent the anti-abortionist would have to stay in bed with the violinist however long that may be because all humans have a right to life. This analogy is trying to suggest that someone's right to decide what they do to their body is greater than someone's right to life? I'm sure you would be outraged if you were unwillingly and knowingly put in this situation. Although if you were feeling generous you might decide to save the violinist by staying connected, if 1 hour of being connected to him would save his life. However that is the individual personal decision to make. A law, which required you to stay in bed with the violinist, would be an unjust law. If the right to decide is greater then the right to life, Thomson is saying, then the anti-abortionists premise of life beginning at conception is irrelevant. This analogy is trying to distinguish whether people who oppose abortion will make an acceptation, if the conception was due to rape and therefore as the violinist analogy puts forward, the participant was unwilling. Therefore do some people have a less of a right to life than others? Surely there is no distinction between the circumstance that life is created, life is life and people have the same feelings however conception takes place. A test tube baby is still an original, unique life. Rape is wrong but is it right to punish the innocent party (the baby). If anyone is going to be killed as a result of rape, surely that should be the rapist?! A pro-abortionist could argue that the mother is the innocent party and therefore is being punished through the conception. Again the question comes down to the premises of whether a right to life is greater than the right to choose. However just because a fetus is down to rape doesn't make that new life any less important – it is still a life. However I would like to suggest that there is a difference in sustaining life and promoting new life. There is a difference of responsibility in life as a result of a pregnant women (regarding the fetus. For all of us need our organs to function and we don't have a responsibility to sacrifice ourselves and are organs or freedom to sustain life randomly because we are life ourselves and have the same right to sustain our life and not give are bodies to the goodness of life for everyone. If this statement is wrong I challenge everyone to go down to the hospital tomorrow and willingly sacrifice themselves for the good of sustaining life (or violinists! ). However new life is the result of conception, this conception is not sustaining life but rather giving new life, this is completely different. The violinist analogy poses the question that there is a ladder of people who have more right to life than others. A human chose that the violinist's life was more important to sustain than the person who was attached to him, what about the violinists responsibility to promote life. If someone is being forced to keep you alive, life isn't being promoted but the opposite is occurring. The violinist analogy automatically assumes that one person is more valuable to sustain than another. Therefore this leads us to the question; can we use a person who is less valuable to society in order to sustain the life of someone who brings more value to society, such as use murderers and rapists in this way and their organs? The question this raises is, what human has the right to decide who lives or dies or how you use your body. In the violinist analogy a human decided that someone's life was not as valuable as the violinist's. The anti-abortionist can argue that this example is not acceptable to the debate. There is a difference in sacrificing yourself to SUSTAIN existing life and sacrificing yourself to KEEP new life. Existing life was their before you decided or were forced to sustain it (e. g. sustaining the violinist) but new life originates in the person and wasn't around before. The person who was attached to the violinist was attached to sustain the violinist's life NOT to keep a new unique life. A new life comes into existence though conception at birth. The person attached to the violinist was sustaining his life but the violinist did not originate in the person that was attached to him, it was a different situation and not properly relevant to the abortion debate. The issue is complicated if the mothers life is in danger as a result of the pregnancy. If we conclude that all have a right to life, can we add to the mothers write to life the right to decide? Theirs no doubt the mother unlike the fetus has the opportunity to decide and if she is acting in a way as to save herself, she is acting in self-defence. Thomson here uses the house analogy here to illustrating that a women has a write to defend herself from the threat of an innocent baby in the example a women and child are both in a house, the child is growing and will eventually unknowingly crush the women. This illustration is designed to provoke us. However is it the women's body to decide? For the women is a carrier and the baby is a separate life. Thomson does say that it is indecent for seven-month pregnant women to have an abortion so she can go on a trip to Europe. People instead should get their priorities in order. Thomson believes each situation should be judged on its own merits. For an example she believes it acceptable for a 14-year-old pregnant rape victim to have an abortion to relieve the trauma but the situation changes if a pregnant women changes her mind or became pregnant because of no contraception. In other words a person behaves in a way that could have been avoided. However as more and more people start using abortion as a form of contraception we should ask the question, what did the sexual revolution of the sixties bring us? It brought us, sexual diseases, single parents, less stability, aids, increased abortions – â€Å"free love† is starting to look more like â€Å"free death†. The issue of abortion comes down to people's own moral belief. Human logic can dictate, which I have highlighted that abortion could be justified in extreme circumstances although should not be used constantly as a form of contraception. However the biblical view states very clearly that abortion is a sin. From the moment of conception the DNA cells have divided into areas and the characteristics of that life has been established. In the eyes of God therefore it has been given the breath of life.

The Tragic Hero Of Hamlet By William Shakespeare - 1252 Words

Aristotle claims that a tragic hero is a protagonist who evokes pity in its audience and has a tragic flaw that ultimately leads to their downfall. They must also be virtues and noble or of some importance. Like many of Shakespeare’s protagonist Hamlet is regarded by many as a tragic hero. They place him in the ranks of characters like Othello, Romeo and Antony. However, even though Hamlet shares many similarities with these characters and possess many of the attributes outlined by Aristotle, he ultimately does not fall into the trap of vengeance. Throughout the play the members of the Danish court attempt to poison Hamlet with different narratives and push him into vengeance. It is typical of a tragic hero to have some tragic fall that brings about their own downfall. However, Hamlets downfall is not brought on by his actions or his flaws. Instead Claudius poisons the court against Hamlet and tries to have him murder multiple times before succeeding in the final scene. In the beginning of the fourth act after Hamlet murders Polonius, Claudius convinces Gertrude as well as Hamlet’s childhood friends to send him away to England. Here Claudius asks the king of England to kill Hamlet and help him rid himself of Hamlet. Then when that fails Claudius convinces Laertes to kill Hamlet in act 4 scene 7. This defers from the downfall of tragic heroes like Othello who ends up killing himself after murdering his wife Desdemona. It was all of Othello’s flaws and mistakes that led himShow MoreRelatedThe Tragic Hero Of Hamlet By William Shakespeare1402 Words   |  6 Pagessuggested that a hero must evoke in the audience a sense of fear and pity. In many ways, Hamlet is the quintessential tragic hero. Like the classical tragic hero, Hamlet begins with the noblest motivations, to punish his father’s murderer, but he does not survive to see the full outcome of his actions. Hamlet’s tragic flaw as well as his extensive knowledge, causes him to think through everything before acting, effectively stopping him from being decisive, and bringing about his necessary tragic ending. Hamlet’sRead MoreThe Tragic Hero Of Hamlet By William Shakespeare1094 Words   |  5 Pagesmen do lives after them; the good is oft interred with their bones† (Shakespeare). Often times, a pure heart will rot in the grave and then their sins will be what remains to stain their images. I believe this is the case for the young Prince Hamlet, a tragic hero he was, it appears that many readers forget what Hamlet was trying to achieve. In conclusion, I believe that readers do not recognize the champion that Hamlet was, Hamlet is a victorious protagonist that avenged his father, and with his revengeRead MoreThe Tragic Hero Of Hamlet By William Shakespeare1254 Words   |  6 PagesThat makes the tragic hero a character who experiences conflict and suffers as a result of his choices and actions. Hamlet suffers both private and public, and makes choices that lead to his destruction. Therefore he is a clear representation of Shakespeare’s tragic hero. Hamlet, the play’s tragic hero, exhibits a combination of good and bad traits. He is a complex character and displays a variety of characteristics throughout the play. When introduced in Act, Scene 2, we see Hamlet as a sensitiveRead MoreWilliam Shakespeare s Hamlet As A Tragic Hero1251 Words   |  6 PagesHamlet is one of Shakespeare’s most famous tragedies. Hamlet himself is commonly known as a tragic hero in the play. He knows he possesses the flaw of indecision but cannot overcome it, and this is a weakness that eventually causes his downfall. Therefore, this paper will discuss his own fate by examining some of his characteristics. Different people have their own understanding towards Hamlet. As a tragic hero, some think he is young, brave and thoughtful; some think he is conscientious, becauseRead MoreWilliam Shakespeare s Hamlet - The Aristotelian Tragic Hero1529 Words   |  7 Pagesplay, Hamlet, centers around Hamlet’s contemplation of killing his uncle in order to avenge his father’s death. Hamlet’s decisions and values come into play in determining his fate. However, Hamlet’s intended action to avenge his father’s death, rather his motivation, falls short due to his moral dilemma. Overall, Hamlet’s actions and values work together to create a connection between Hamlet’s state of mind and the condition of Denmark as well as, epitomize him as an Aristotelian tragic hero. At theRead MoreEssay about Greek Tragedy Exemplified in Shakespeares Hamlet1191 Words   |  5 PagesGreek Tragedy Exemplified in Shakespeares Hamlet For several thousands of years, drama has existed among mankind. The ancient Greeks are accredited with the creation of drama, which began as simple religious rituals and eventually evolved into the more complex forms of tragedies and comedies. The first rules of drama, not surprisingly, were also written by a Greek--the famous philosopher and intellectual, Aristotle. Aristotle took note of the what qualities created a successful dramatic pieceRead MoreHamlet, Prince of Denmark825 Words   |  4 PagesHamlet, Prince of Denmark By William Shakespeare Submitted by: Tariq Khan Dated: Monday, 24th September, 2012 Hamlet as a Tragedy by William Shakespeare 1.1. Brief Introduction to Tragedy: Greek and English: Elizabethan tragedy is traced back to Greek tragedy, since Greeks are said to have pioneered the Western knowledge, be it Science, Arts, or Humanities—not necessarily Technology. The rich contribution of Greek dramatists like Sophocles, Euripides, Aeschylus and AristophanesRead More Shakespeares Macbeth and Hamlet as Tragic Heroes Essay893 Words   |  4 PagesMacbeth and Hamlet as Tragic Heroes      Ã‚   William Shakespeare has written many literary works - from his sonnets to his plays, each has its own individual characteristics.   One popular characteristic that comes from his plays is the tragic hero.   The audience can always relate to the tragic hero and the many trials he faces.   Macbeth and Hamlet are just two of Shakespeares plays that involve the tragic hero.   Through their nobility, tragic flaws, and dignity Macbeth and Hamlet prove to beRead MoreHamlet As A Tragic Hero850 Words   |  4 Pagesas a hero if they revenge? Well In the novel Hamlet the author, William Shakespeare creates tragic events where his main character Hamlet has to overcome to achieve his goal of killing his evil uncle Claudius. â€Å"In life one has to do bad thing in order to be a hero,the hero also has to make sacrifices in order to be successful† (John Barrowman). In Shakespeare Hamlet, should hamlet be considered a tragic hero judging by him following the hero steps. S hakespeare proves that Hamlet was a tragic heroRead More The Tragic Hero of Hamlet Essay1049 Words   |  5 PagesThe Tragic Hero of Hamlet    Shakespeares play, Hamlet illustrates the tragedy of a young princes pursuit to obtain revenge for a corrupt act, the murder of his father.  Ã‚   As the exposition unfolds, we find Prince Hamlet struggling with internal conflict over who and what was behind his fathers death.   His struggle continues as he awaits the mystic appearance of a ghost who is reported to resemble his father.   Suddenly it appears, proclaiming, Pity me not, but lend thy serious hearing / To