Pollution in the environment Essay Example | Topics and Well Written Essays - 1750 words

Pollution in the environment - Essay Example Holdgate also asserts that, â€Å"the significance of pollution is related to its effects on a range of targets or receptors including man and the resources and the ecological systems on which he depends† (17). As human beings have flourished in all the fields of science such as medicine, technology, nuclear bombs etc. the types of pollutants have also become very diverse beginning from vehicle smoke to radioactive chemicals and extremely dangerous ultra-violet rays. Hence it can be inferred that the damage is now out of control because every aspect of human life that is associated with comfort and health directly or indirectly discharges some form of pollutant and helps in further destroying the environment. 1.1. Types of pollution Any type of component, rays or object that effects the environment is some way can be perceived as a pollutant as it is, â€Å"any substance introduced into the environment that adversely affects the usefulness of a resource† (Hill 8). Conse quently pollution can be divided into many sub-divisions such as air pollution, noise pollution, water pollution, soil pollution, light pollution etc. Although the causes for all these types of pollutions are self-explanatory yet it is interesting to observe the manner in which one component helps in spreading so many types of pollutions all at once. For example radioactive rays and chemicals simultaneously hold the power of polluting the natural resources like soil, water, plants and air. Then again noise, smoke and light can be dangerous for the atmosphere as well as the ozone layer which is protecting us from highly radioactive ultraviolet rays of the sun. Even the cutting down of trees and forests can also be perceived as a form of pollution spread because less tress mean less greenery and excessive spread of pollution as plants and trees fight against pollution by absorbing many harmful gases that are present or discharged in the atmosphere. Hence it can be understood that alth ough urbanization and modern advancements in the fields of science and technology have its perks yet it has also resulted in stealing the peace, quiet and beauty of nature leaving man in a figurative desert of unhealthy surroundings where everything is either stale or dull devoid of freshness and life. Although all ecosystems of planet earth are very important yet it should be realized that it is impossible for human beings to survive without water and some of recent incidents of spilling of highly dangerous substances in different seas and oceans show that human beings are not understanding the extent of damage that is going to be caused and is being caused because of their carelessness. Moreover this issue requires some careful planning and plotting to remedy the situation otherwise there is a possibility that human beings will be facing water shortage which will ultimately lead to vanishing of water from planet earth which in other words means death. 2. Water Pollution Water poll ution can be defined as, "any impairment of the composition or state of water resulting directly or indirectly from human agency, in particular to the detriment of: its

Arab's scientists Essay Example | Topics and Well Written Essays - 750 words

Arab's scientists - Essay Example During these years, the various "Muslim artists and scientists, princes and laborers together made a unique culture that has directly and indirectly influenced societies on every continent" (Turner, 1). In my article I will focus on the well known Arab algebraic mathematicians and their contributions towards the study of science and technology that continue to influence us even today. Discussion The modern form of ‘scientific method,’ that forms the core in all studies pertaining to mathematics and science, is said to have been first established by Ibn Al Haytham (Alhazen), a well known Persian scientist of the 10th-11century Arab world (Gorini, 53-55). In fact it has been contended by many scholars that the study of science in its modern essence has taken shape from the various scientific ideas and knowledge that transpired during the Islamic golden period (Hossein, 71). Ibn al-Haytham is considered to be a trendsetter in the field of of  experimental physics (Gorini, 55)  where his innovative methods of experimentation and quantifications, in order to differentiate between the varying scientific notions and thoughts, are still held in great esteem amongst the modern scientists.  In his famous treatise,  Book of Optics, he transformed the scientific study of  optics, where he empirically derived that owing to the  light rays  that enter the human eye makes it possible for a person to see (Elliot, 330-37). During this golden period, Islamic mathematics played an important role in the overall growth and development of Islamic scientific studies. The development in mathematics mainly grew from the various religious observations that had integrated within it, different problems related to astronomy and mathematics, especially the subjects of algebra, geometry, trigonometry,  and  arithmetic. The Islamic law of inheritance proved to be a great catalyst in the development of algebra (a derivative from the Arabic word al-jabr), a branch of mathematics, by well known Islamic mathematicians during the medieval period, such as,  Muhammad ibn Musa al-Khwarizmi.   Al-Khwarizmi in his famous book Hisab al-jabr w’al-muqabala  used algebra (in the form of linear equations) to come to a logical derivation on the subject of the Islamic law of inheritance.  Later other mathematicians like Al-Hassar who in the 12th century formulated the modern mathematical symbolic notations, like fractions. Another well known mathematician in the 15th century, Abu al-Hasan ibn Ali al-Qalasadi actualized an algebraic symbolic notation which is considered to be "the first steps toward the introduction of algebraic symbolism" in the 15th century (O'Connor and  Robertson, Abu'l Hasan ibn Ali al Qalasadi, 1999). There are three main theories regarding the conceptualization of Islamic algebra, where the first one states that it was derived from Hindu scientific notions; the second theory tell us that Islamic algebra came from Mes opotamian influences; while the third theory opines that it was derived from Greek algebraic notions (Boyer, 230). Throughout the entire golden era, before the Islamic civilization came to an end, the Arab scientists were fully aware of the notions of rhetorical algebra, which was in wide use, and often the numbers were written in the form of words (like ‘

AMD And Intel Processor Comparison Information Technology Essay

AMD And Intel Processor Comparison Information Technology Essay AMD processors offer three ranges high end, middle and end basis. There are three processors each category. Category consists of high end AMD Phenom II X6, AMD Phenom X4 and AMD Phenom II x2 II. Phenom II X6 is the first six-core AMD processors are intended for the optimum level of performance and very high. Phenom X4 II is equipped with quad-core Phenom chips and chip-II X6 is specifically designed for the very unusual use of quality multimedia and advanced applications.Phenom X2 II 2 core processor is the capacity to ensure high performance is good overall with a very economical price. Category consists of mid-end AMD Phenom X3 II, II, and AMD Turion AMD Turion Ultra II. II Phenom X3 is a customer of class 3 core processors with 64-bit computing capabilities, designed to provide optimum performance with economy pricing. Both Turions multimedia products designed for the perfect and most of them come with an AMD or ATI graphics, of course, at a very economical price. AMD is the AMD Sempron basis, AMD Athlon and AMD Athlon X2 Neo Neo. Considered best for mobile computing, AMD Sempron is a popular choice for low budget desktop and laptop. The processor is suitable for very basic computing needs such as browsing the Internet, the basic functions of the office and e-mail. Neo Neo Athlon and Athlon X2 comes with a lower processing power and economic strength of customers and most are found in netbook and nettop. Because the integrated ATI graphics, the processor also offers basic feasible multimedia output. Intel Processors Not to be outdone by AMD, Intel is a serious competitor when it comes to Intel and AMD processor comparison. Similar to AMD, Intel also offers a range of three processors the high end, mid end and the base the first category consists of three and the rest consists of two products. High-end consists of the latest series of Intel Core processors i Intel Core i3, i5, and i7. Core and Core i7 i5 comes with 2, 4 or 6 (there is only the Core i7) and the ability of 64-bit processors. Both come with Hyper Threading technology and Turbo Boost. Turbo Boost technology ensures increased overall performance and handling aspect as the number of active cores, power consumption, processor temperature, etc. Core i3 also has this feature, except Turbo Boost technology. Core i5 has a cache memory is lower than the i7. Mid-end range includes Intel Core 2 Duo and Intel Pentium Dual Core processor. The former offers two core processes that improve the gaming and multimedia output. This last is based on Core micro-architecture and a decent multimedia output. Basic Intel processors, including Intel Centrino, Intel Centrino Duo and Intel Atom. >Power Consumption When we look to overall power consumption of a system, Intel definitely suffered the early downfall . Its Pentium 4 processors had a very bad reputation of 150W TDP. Intel tried to solve the problem in its Intel i7 960 processor, which goes to less than 95W TDP. But, experiments have still proved that a machine running on an Intel i7 960 processor consumed, at least 7W more power, than an AMD Sempron . But in today AMD to produce a new product, AMD Phenom X4 II. Product in product far greater to AMD products before, This Power Consumption 125 watt AMD can give than the Intel Core i7 , that only 95 .Its too big different if you compare whether product by AMD and Intel. >Price vs. Performance When it comes to the performance to cost ratio, AMD has definitely been the winner, for a long time. Its processors were cheaper, as compared to Intel and they definitely did provide high value performance. But, with the advent of the Intels Quadcore and Intel Core i7 processor, the situation has totally changed. The performance of a Intel Core i7 processor is, perhaps, the best in the market and its price is continuously falling. >3D Gaming This is basically the feature that had allowed AMD to hold its top position for a long time. Even with no graphics card, AMDs 64 bit processor could take on the load and support the gaming features of advanced games. Intel, however, suffered an initial setback because the multithreading features that it allowed, were not used by many games then. The AMD Phenom II X4 bit could beat the Pentium 4 computers, in almost all respects, when it came to gaming. But, the turnover again, happened with the introduction of the Intel i7 960 processor processors. The scenario changed completely. Besides the equivalent features that these two processors could provide (when compared to the AMD Phenom II X4 ), they also had an added feature of supporting dual video cards. >Graphics The comparison would again be the same, as that of the 3D gaming. AMD is a winner when its processors are compared to Intels previous processors, but AMD Phenom X4 II. processors, with their supreme features, have helped Intel re gain the share of the market that it deserves. >MP3 and Video Encoding AMDs 64 bit processors provided faster encoding of MP3s, as well as videos. The reason is simple a 64 bit processor will, of course, be faster than a 32 bit processor. Intels 32 bit processors had higher clock frequencies, but while the clock frequency of a 64 bit processor could be less, it worked at almost twice the speed than what was mentioned in its manual. This feature was also combated by Intel with its AMD Phenom X4 IIprocessors. If we do not run experiments to test the minutest details, then both the companies can provide good encoding capability for any average user. >Cooling and Productivity Computers working on Intel i7 960 processors definitely have superior cooling features and better heat sinks, when compared to the AMD machines. Not only this, but the Intel i7 960 could reach to a speed of 3.2 GHz on proper cooling. >Office Productivity and Multitasking Finally, we come down to the basic features, that every computer user is worried about the level of office productivity, internet browsing speeds and multitasking that their machines would provide. Just as a 32 bit processor and a 64 bit processor cannot be compared with respect to office productivity; similarly, it is better if we dont compare these processors as well, on the level of their office productivity. You cannot actually notice a spreadsheet launching faster on your screen or your letters being typed faster. Both the organizations are equivalent, when compared on the basis of their office productivity. But, coming down to multitasking, AMD with its 64 bit processors provided better multitasking features and none of the Intels processors, before the launching of the Core 2 Duo processors could match up to it. But with the entry of Intels Core 2 Duo and Quadcore on the scene, we can again consider the situation balanced. Before we end this discussion, let us consider a few more common features that both these processors can handle equivalently. It may not be of much concern to many people, but the processors manufactured by both the organizations support the sharing of the DDR2 RAM, peripherals and the video cards equally well. As a computer user, it is, in fact not necessary, to be a die-hard fan follower of the chips of either organizations. Just wait for the more advanced chip to be launched; it may be from any organization, but you will definitely be the one to benefit. Which is Better AMD or Intel for Gaming? For gaming , what matters the most is how big is the graphic card or the video card. It would be interesting to know that AMD produces their processors keeping the ATI graphic cards in mind, whereas Intel makes their laptops to run better with Nvidia graphic cards. Quite surprisingly, it was found that AMD machines had exceptional quality graphics as compared to Intels. Hence, if you are a hardcore gamer or like to watch everything in HD, then it is better to bet on an AMD processor laptop. Hence, AMD can be a clear winner between AMD vs Intel for gaming. We cannot neglect the reputation of Intel at the same time for producing some amazing processors time and time again. Again, Intel has lately stormed the market with their phenomenal Core i series, which are truly amazing for their overall performance. I would say, analyze as per your usage and then decide upon which is better, AMD or Intel. If you want your computer for multimedia use like for gaming, music or video editing, etc., and want a gaming laptop, then I would suggest to get an AMD powered machine. On the other hand, if you dont mind spending more on a computer for its overall performance and the efficient battery consumption, then nothing can be better than Intel. It can be analyzed that, with AMD processors, you are able to get 90% of overall satisfaction with 60% of price. Whereas, with Intel based machines you can get over 98% or more of overall satisfaction with equal percentage of price. AMD vs Intel Processor Comparison Chart User Requirement AMD Intel Power Consumption Less efficient than Intel More efficient than AMD Price Range Lower Higher Cooling Factor Heats up faster Runs cooler for a longer duration Performance Speed Not very Fast, compared to Intel Faster than AMD Gaming and Multimedia Better multimedia output due to faster clocking Not very good for gaming Performance:Price High:Low High:High (Specifications)>Example AMD Intel Product AMD Phenom II X4 Intel Core i7 Model Number 965 I7-880 Cpu Part Number HDX965FBK4DGM BV80605002505AG Core Number Deneb 4MB shared L3 cache 2.4GHz Intel Core 2 Duo 1066MHz frontside bus 3MB shared L2 cache Socket Socket AM2+ / Socket AM3 Socket 1156 Frequency (MHz) 3400 3067 Clock Multiplier 17 23 L1 cache 256 KB (code) / 256 KB (data) 128 KB (code) / 128 KB (data) L2 cache (KB) 2048 1024 L3 cache (KB) 6144 8922 Max temperature (ÃÆ' ¯Ã‚ ¾Ã‚ °C) 62 TDP (Watt) 125 95 >Conclusion Finally, we look at to the basic features, that every computer user is worried about the level of office productivity, internet browsing speeds and multitasking that their machines would provide. Just as a 32 bit processor and a 64 bit processor cannot be compared with respect to office productivity, Similarly, it is better if we dont compare these processors as well, on the level of their office productivity. But, in this multitasking sides , AMD Phenom II X4 with its 64 bit processors provided better multitasking features and none of the Intels processors, Before we end this discussion, let us consider a few more common features that both these processors can handle equivalently. It may not be of much concern to many people, but the processors manufactured by both the organizations support the sharing of the DDR2 RAM, peripherals and the video cards equally well. As a computer user, it is, not necessary, to be a fan follower of the chips of either organizations. Just wait for the more advanced chip to be launched; it may be from any organization, but you will definitely be the one to benefit. Back to Top Copyright Hanif Aini2011 ©

African-american Troops In The Civil War: The 54th Massachusetts :: essays research papers

African-American Troops in the Civil War: The 54th Massachusetts The Fifty-fourth Massachusetts was organized in early 1863 by Robert Gould Shaw, twenty-six year old member of a prominent Boston abolitionist family. Shaw had earlier served in the Seventh New York National Guard and the Second Massachusetts Infantry, and was appointed colonel of the Fifty-fourth in February 1863 by Massachusetts governor John A. Andrew. As one of the first black units organized in the northern states, the Fifty-fourth was the object of great interest and curiosity, and its performance would be considered an important indication of the possibilities surrounding the use of blacks in combat. The regiment was composed primarily of free blacks from throughout the north, particularly Massachusetts and Pennsylvania. Amongst its recruits was Lewis N. Douglass, son of the famous ex-slave and abolitionist, Frederick Douglass. After a period of recruiting and training, the unit proceeded to the Department of the South, arriving at Hilton Head, South Carolina, on June 3, 1863. The regiment earned its greatest fame on July 18, 1863, when it led the unsuccessful and controversial assault on the Confederate positions at Battery Wagner. In this desperate attack, the Fifty-fourth was placed in the vanguard and over 250 men of the regiment became casualties. Shaw, the regiment's young colonel, died on the crest of the enemy parapet, shouting, "Forward, Fifty- fourth!" That heroic charge, coupled with Shaw's death, made the regiment a household name throughout the north, and helped spur black recruiting. For the remainder of 1863 the unit participated in siege operations around Charleston, before boarding transports for Florida early in February 1864. The regiment numbered 510 officers and men at the opening of the Florida Campaign, and its new commander was Edward N. Hallowell, a twenty-seven year old merchant from Medford, Massachusetts. Anxious to avenge the Battery Wagner repulse, the Fifty- fourth was the best black regiment available to General Seymour, the Union commander. Along with the First North Carolina Colored Infantry, the Fifty-fourth entered the fighting late in the day at Olustee, and helped save the Union army from complete disaster. The Fifty-fourth marched into battle yelling, "Three cheers for Massachusetts and seven dollars a month." The latter referred to the difference in pay between white and colored Union infantry, long a sore point with colored troops. Congress had just passed a bill correcting this and giving colored troops equal pay. However, word of the bill would not reach these troops until after the battle of Olustee. The regiment lost eighty-six men in the battle, the lowest number of the three black regiments present. After Olustee, the Fifty-fourth was not sent to participate in the bloody Virginia campaigns

Sports Essay

Kevin Walters Go Team! Sports have become a huge part of this country’s culture, and the sports fans make up a good portion of the population. Every other conversation you hear, whether it be at the water cooler or in a bar, has something to do with some big play or blown call that happened the night before. The popularity of sports has grown magnificently in just the last 24 years that I have been a sports fan. What used to be all the men yelling and cussing at the TV, has become almost as popular to women.Whether it is football, basketball, or baseball, these fans come in all different shapes and sizes. If you are a follower of a team, a bandwagon fan, a fair weather fan, or a die-hard fan, we are all part of a great family of sports fans that make for a good time and some awesome conversation. The followers, as I like to call them, are just your basic fan of a specific sports team. They are with that team and will stick by them through thick and thin, but they wouldnâ€℠¢t mind being able to not watch a game if it got in the way of previous plans.These fans may have a few shirts or maybe a hat or two of their favorite team but unless it’s game day, they don’t go out of their way to show that pride. A follower will usually not care to spend the money on tickets to actually go watch a game, but if they are given tickets or invited to go see a game with some friends, they will not hesitate to say yes. Being a follower is not a bad thing. It’s a safe position as far as being a fan of a certain team, because if your team wins you can cheer and brag to all your friends, but when they lose you don’t have that â€Å"heartbreak† that comes with the other types of fans.The bandwagon fan is one of the most hated categories of fans that you could possibly be. A bandwagon fan is the type of fan that likes to cheer for the team that is most likely to win. These fans are usually fairly knowledgeable in the sport they are cheerin g for and will usually do their homework on whichever team they are cheering for that week. Bandwagoners will do what they can to make sure they are able to watch every game, this way they can see who plays good and bad and decide who they want to cheer for.When it comes to clothes, a bandwagon fan’s closet will look like a rainbow of sorts of different sports teams. They have a jersey from 4 or 5 different teams that they like to switch between just to be ready in case one team is their favorite that week. Bandwagon fans enjoy going to watch a live game, and will cheer for whichever team is picked to win. Being a bandwagon is, like a follower, a very safe type of fan to be. Besides the fact that you will be hated by any true fans, you have the luxury of switching teams the next week if your team performs poorly.Fair weather fans are the types of fans that hurt a team the most of all. These fans absolutely love their team at the season’s start, but if the team begins t o struggle and shows no hope of doing well that year, these fans will disappear like ghosts. If the team is doing good and satisfying their expectations, a fair weather fan will do whatever they need to do to be able to watch the games on TV so they can be there to cheer them on. These fans make themselves very noticeable towards the middle of the season.Fair weather fans will dress up in all the team colors and wave the team flag as if they were the truest fans ever but as soon as the team starts losing, the clothes get hung in the back of closet and the flags get taken town and put up in storage until the start of the next season. They will be the first ones in line to buy tickets to the opening home game, but a fair weather fan will never be a season ticket holder. A fair weather fan is a safe fan to be, but it is also a sad fan. These fans are the reason that games get blacked out on TV because the team can’t sell tickets to the game.The last category of fans is the die-h ard fan. These fans are absolutely crazy about their team, win or lose. They will fight with you and argue with you until the end and tell you why their team is the best, no matter what the record might say. Die-hard fans will request days off work and make plans around their team if that’s what it takes to be able to watch the big game. This fan will wear at least one article of clothing of his favorite team at least 6 days out of the week, even if they get blown out the week prior.These kinds of fans will be your season ticket holders. They will make every game and be one of the first ones to the stadium. Die-hard fans are the best sports fans in my opinion. They are so passionate and so dedicated to their team, that it can easily be the most dangerous type of fan to be. If a die-hard fan’s favorite team loses, it can ruin his whole week, but as soon as they play again, he is right there cheering them on as if it was the Super Bowl or the World Series. Fans are what keep sports alive all around the world.If these sports or teams didn’t have these kinds of fans, they wouldn’t be able to exist. Sports have become a lifestyle in this country and the fans have become a strong community. I couldn’t imagine what America or the world would be like without sports. Being the die-hard fan that I am of my favorite sports team, I just don’t know how I would function with my Florida Gators. So whether you are a follower, fair weather, bandwagon, or die-hard fan, keep cheering and keep passing down the tradition of being a sports fan in America.

Rizal: Bayaning Third World

At the part where in Rizal almost burn the manuscript of Noli Me Tangere made me think that it was a symbol of him letting go of what he strongly believed in connection to him not involved with â€Å"Himagsikan†. He became hopeless and I think he became afraid of death, probably, However, since he continued the publishing of Noli Me Tangere, I believe, he gained back his strong convictions regarding our democracy and showed his nationalism and patriotism. I thought what I know about Rizal was enough to understand his life, works and writing but having finished this independent film widened my understanding not only for Rizal’s positive sides but also for his flaws. Jose Rizal being a national hero considering his great influence not only in the Philippines but to other countries he had gone also with his works, the great impact he left with our history as a country and culture as its citizen, his weight to some indigenous religions also has his own flaws and faults because he is also a human being capable of doing those things. Less people know Rizal’s â€Å"dark side†Ã¢â‚¬â€ controversies, I myself was one of those before I watched this film. We were focused on his good side, his achievements and contributions for the betterment of our country but having the chance to know his flaws which until now haunts him, we must understand him and not condone the fact that he was still a human being. Rizal really don’t want to be a hero, he just wanted to prove his great passion and love for our country. Indeed, Rizal chose to die because it was one way to give weight to his beliefs and philosophy. We all have our own Rizal. We have different perceptions and understanding regarding his life, works and writings. As for me, though he is not as â€Å"perfect† as a national hero should be, I still salute and look up to him for his immense contributions and grand legacy which is applicable until now. Despite his imperfection, it didn’t lessen his heroism. In fact, his controversies made his life more interesting and it only made him more famous not only during his time but now and in the future generations. I didn’t get surprised that many critiqued his life but for me he is still the rd world hero of all time. How can we become Rizal in our own little ways? By following simple rules and regulations and by paying the right tax. There are a lot more and it is up to you to think of whatever way it suites you. Let us be a modern-day Rizal to continue his legacy for the future generation. Bayaning Third World is a film of substance. It is very appealing and is highly recommended for other stu dents studying Rizal. It is effective for my learning. Even if our 1-peso coin is in constant devaluing, Rizal still remain number one in our hearts.