Sunday, May 24, 2020
Chinas energy productio - Free Essay Example
Sample details Pages: 2 Words: 686 Downloads: 8 Date added: 2019/10/30 Category Energy Industry Essay Level High school Tags: Solar Energy Essay Did you like this example? Chinas energy production intensely depends on coal and while there are a lot of pros that come with coal, there are also a lot of cons that are so significant that it has to be changed. In China because they have a big coal supply, nearly 80% of its power generation originate from coal (ChinaFAQs). This has a lot different factors. This essay is analyzing different factors of why Solar Energy is the best source of energy production in China. The pros and cons will be evaluated and justified further with arguments and verification. Body Donââ¬â¢t waste time! Our writers will create an original "Chinas energy productio" essay for you Create order Coal is served with an abundant supply, which is concentrated in industrialized countries, which helps China a lot (TriplePundit).It is also very cheap compared to alternative energy sources like solar energy. Another pro of coal in China is that the clean coal technology is being used in China. Clean Coal says that it doesnt enter the atmosphere but so far it didnt have great success and is not safe for the environment(InsideEnergy). Clean coal is also not carbon free. The problem of using coal in fossil fuel power generation is that coal is a non-reusable energy source. Coal is also responsible for more than the quarter of the nations global warming emissions. It has very significant and harmful consequences to the environment and coal mining degrades the surrounding landscapes. Burning coal releases a lot of toxic substances into the atmosphere, while coal produced power puts substantial requests on water assets. Everything signifies a gigantic and expensive effect. Another aspect of using coal is that it isnt very healthy because coal emissions are linked to increase the rate of asthma and especially lung cancer and burning coal emits mercury and and other very heavy metals that could potentially present major health risks and issues. Coal produces electricity by thermal coal which is either black or brown and also has been pulverised to a fine powder, is burned. The heat that results gets is utilized to transform the water into steam. The steam with high pressure is then used to turn a turbine, associated with an electrical generator. Then the spinning turbine makes expansive magnets to turn within copper wire coils, also called the generator. The moving magnets then cause electrons in the wires to move starting with one place then onto the next, creating an electrical current and producing a lot of electricity. The alternative energy source is Solar Energy which is a renewable energy generator. Solar energy can be harnessed everywhere in the world and is available for everyone every day. This could also be a huge advantage for China, fixing their problems with pollution and coal. Another advantage of solar energy is that it has diverse applications. It can be either used for heat (solar thermal) or to generate electricity (Photovoltaics). Solar energy can also produce energy in places where there is no energy grid. When you generate electricity with solar energy, you also save a lot of electricity bills depending on the size of the solar system and the usage of electricity. If you generate more electricity than you use, the surplus made will be exported back to the grid and you will receive extra payments. Solar energy has very low maintenance costs and solar energy is constantly developed in Technology, which means improvements will intensify in the future. One of the cons of Solar Energy is that it has a high initial cost. This incorporates paying for solar panels, batteries, inverter and wirings. Although this is a negative, solar energy is developing, so the price will go down accordingly. Solar energy pollutes far less than other alternative sources, but it still pollutes. Transportation and establishment of solar panels have been related to the emission of greenhouse gases. There are also some toxic materials used during the process of generating electricity. Toxic materials are a danger for the environment as citizens could be affected by getting lung cancer or other death threatening diseases. Another con of Solar Energy is that it is weather dependent, but not so heavily that it affects a lot during the generation of electricity.
Wednesday, May 13, 2020
La Venta Olmec Archaeology site La Venta
The La Venta is an archaeological site in the Mexican State of Tabasco. At the site are the partially excavated ruins of an Olmec city which thrived from approximately 900-400 B.C. before being abandoned and reclaimed by the jungle. La Venta is a very important Olmec site and many interesting and significant artifacts have been found there, including four of the famous Olmec colossal heads. The Olmec Civilization The Ancient Olmec were the first major civilization in Mesoamerica, and as such are considered the parent culture of other societies that came later, including the Maya and Aztec. They were gifted artists and sculptors who are best remembered today for their massive colossal heads. They were also talented engineers and traders. They had a well-developed religion and interpretation of the cosmos, complete with gods and mythology. Their first great city was San Lorenzo, but the city declined and around 900 A.D. the center of Olmec civilization became La Venta. For centuries, La Venta spread Olmec culture and influence throughout Mesoamerica. When La Ventas glory faded and the city declined around 400 B.C., Olmec culture died with it, although a post-Olmec culture thrived at the site of Tres Zapotes. Even once the Olmec were gone, their gods, beliefs and artistic styles survived in other Mesoamerican cultures whose turn for greatness was yet to come. La Venta at its Peak From about 900 to 400 A.D., La Venta was the greatest city in Mesoamerica, far greater than any of its contemporaries. A man-made mountain towered over the ridge at the heart of the city where priests and rulers carried out elaborate ceremonies. Thousands of common Olmec citizens labored tending crops in the fields, catching fish in the rivers or moving great blocks of stone to the Olmec workshops for carving. Skilled sculptors produced colossal heads and thrones weighing many tons as well as finely polished jadeite celts, axe heads, beads and other pretty things. Olmec traders crossed Mesoamerica from Central America to the Valley of Mexico, returning with bright feathers, jadeite from Guatemala, cacao from the Pacific coast and obsidian for weapons, tools and adornments. The city itself covered an area of 200 hectares and its influence spread much further. The Royal Compound La Venta was built on a ridge alongside the Palma River. At the top of the ridge are a series of complexes collectively referred to as the Royal Compound because it is believed that the ruler of La Venta lived there with his family. The royal compound is the most important part of the site and many important objects have been unearthed there. The royal compound - and the city itself - is dominated by Complex C, a man-made mountain built of many tons of earth. It was once pyramidal in shape, but the centuries - and some unwelcome interference from nearby oil operations in the 1960s - have turned Complex C into a shapeless hill. On the northern side is Complex A, a burial ground and important religious area (see below). On the other side, Complex B is a large area where thousands of common Olmecs could gather to witness ceremonies taking place on Complex C. The royal compound is completed by the Stirling Acropolis, a raised platform with two mounds: it is believed that the royal reside nce was once located here. Complex A Complex A is bordered on the south by Complex C and on the north by three massive colossal heads, clearly setting this area aside as a privileged zone for the most important citizens of La Venta. Complex A is the most complete ceremonial center to have survived from Olmec times and the discoveries made there redefined modern knowledge of the Olmec. Complex A was evidently a sacred place where burials took place (five tombs have been found) and people gave gifts to the gods. There are five massive offerings here: deep pits filled with serpentine stones and colored clay before being topped with serpentine mosaics and earthen mounds. Numerous smaller offerings have been found, including a set of figurines known as small dedicatory offering four. Numerous statues and stonecarvings were located here. Scuplture and Art at La Venta La Venta is a treasure trove of Olmec art and sculpture. At least 90 stone monuments have been discovered there including some of the most important pieces of Olmec art. Four colossal heads ââ¬â out of a total of seventeen known to exist ââ¬â were discovered here. There are several massive thrones at La Venta: huge blocks of stone brought from many miles away, carved on the sides and meant to be sat or stood upon by rulers or priests. Some of the more important pieces include Monument 13, nicknamed ââ¬Å"the Ambassador,â⬠which may contain some of the earliest glyphs recorded in Mesoamerica and Monument 19, a skillful depiction of a warrior and a feathered serpent. Stela 3 shows two rulers facing one another while 6 figures ââ¬â spirits? ââ¬â swirl overhead. Decline of La Venta Ultimately La Ventas influence petered out and the city went into decline around 400 B.C. Eventually the site was abandoned altogether and reclaimed by the jungle: it would remain lost for centuries. Fortunately, the Olmecs covered up much of Complex A with clay and earth before the city was abandoned: this would preserve important objects for discovery in the twentieth century. With the fall of La Venta, Olmec civilization faded as well. It survived somewhat in a post-Olmec phase referred to as the Epi-Olmec: the center of this age was the city of Tres Zapotes. The Olmec people did not all die out: their descendants would return to greatness in the Classic Veracruz culture. Importance La Venta The Olmec culture is very mysterious yet very important for archaeologists and modern-day researchers. It is mysterious because, having disappeared over 2,000 years ago, much information about them has been irrevocably lost. It is important because as the parent culture of Mesoamerica, its influence on the later development of the region is immeasurable. La Venta, along with San Lorenzo, Tres Zapotes and El Manatà , is one of the four most important Olmec sites known to exist. The information gleaned from Complex A alone is priceless. Although the site isnt particularly spectacular for tourists and visitors - if you want breathtaking temples and buildings, go to Tikal or Teotihuacà ¡n - any archaeologist will tell you its just as important. Sources: Coe, Michael D and Rex Koontz. Mexico: From the Olmecs to the Aztecs. 6th Edition. New York: Thames and Hudson, 2008 Diehl, Richard A. The Olmecs: Americas First Civilization. London: Thames and Hudson, 2004. Gonzalez Tauck, Rebecca B. El Complejo A: La Venta, Tabasco Arqueologà a Mexicana Vol XV - Num. 87 (Sept-Oct 2007). p. 49-54.
Wednesday, May 6, 2020
Curleys Wife Free Essays
Exam Practice ââ¬â C. A. T On Curleyââ¬â¢s Wife. We will write a custom essay sample on Curleys Wife or any similar topic only for you Order Now In this essay, I will explain the character of Curleyââ¬â¢s wife having looked at, we can see John Steinbeck portrays Curleyââ¬â¢s wife as being a ââ¬Ëtartââ¬â¢ but also a nice woman. She is a natural flirt as throughout the novel she continues to talk to all the other men on the farm, but when she dies, we see her as an innocent woman. Steinbeck uses many different techniques to present Curleyââ¬â¢s wife such as colour imagery, appearance, metaphors and similes in the early stages of the novel. The effect of these techniques is that the reader creates a mental image of Curleyââ¬â¢s wife even before she even enters the novel. Curleyââ¬â¢s wife gives off the impression she is a ââ¬Ëtartââ¬â¢ and a ââ¬Ëfloozyââ¬â¢ throughout the novel. When readers first read about her, her body language is provocative when she leans against a wall in the barn. ââ¬Å"Oh! She put her hands behind e=ger back and leaned against the door frame so her body was thrown forward, youââ¬â¢re the new fellas that just come, ainââ¬â¢t ya? , being the only woman on the farm, this reveals her need to be noticed and admired by the men. She talks very confidently and flirtatiously to George and Lennie even though they have just arrived on the farm and she doesnââ¬â¢t know them. She pretends to be looking for her husband and when told that he is not there Steinbeck writes ââ¬Å"If he ainââ¬â¢t, I guess I better look some place elseâ⬠she said playfully.? This shows her bored om in marriage with Curley and that she just want attention from the men on the farm. Curleyââ¬â¢s Wife is first presented to us through the dialogue of ranch-hand Candy, when he describes her to George. Candyââ¬â¢s opinion is very sexist towards Curleyââ¬â¢s wife, you only hear the menââ¬â¢s opinion on Curleyââ¬â¢s Wife. He also says ââ¬Å"Curleyââ¬â¢s married . . . a tartâ⬠which shows how Steinbeck wants to present Curleyââ¬â¢s wife which is in a very crude manner. He uses expressions such as ââ¬Å"she got the eyeâ⬠and goes on to describe her as looking at other men, before eventually calling her a ââ¬Ëtartââ¬â¢. The word ââ¬Å"tartâ⬠which shows the impression and effect Curleyââ¬â¢s wife has on other men on the ranch. Steinbeck wanted to use this effect because he wants to show the reader the immediate impression the men have about Curleyââ¬â¢s wife. This further supports my point that Steinbeck presents Curleyââ¬â¢s wife in a negative manner. The effect of this is that the reader has judge Curleyââ¬â¢s Wife without her speaking in the novel. One the one hand, Steinbeck uses the colour red to describe Curleyââ¬â¢s wife which explores ideas of danger, strong and bold. The quote ââ¬Å" She had full rouged lips.. her fingernails red.. she wore a cotton house dress and red mules of which were little bouquets of red ostrich feathersâ⬠. This shows how she makes the effort and dresses to attract sexual attraction from the men on the farm which makes readers think sheââ¬â¢s a ââ¬Ëtartââ¬â¢. On the other hand, Curleyââ¬â¢s Wifeââ¬â¢s appearance could be seen as naive and youthful desire to be found attractive. Red is bright and has an element of happiness to it. Therefore she might not be wearing the colour red to stand out and to look like a ââ¬Ëtartââ¬â¢. How to cite Curleys Wife, Papers Curleys Wife Free Essays Mediums by which she is presented to the reader by Steinbeck is by how she is described by both the characters and Steinbeck, what she is wearing and her body language when she is with the workers, her actions with the characters and what she says (the hidden meaning of what she says). One of the ways the reader can learn about a Character is through the other Characters description and their opinion of that character, in the case of Curlersââ¬â¢ Wife the first we hear of her is from Crooks, the old swamped, when he is talking to George during a game of cards. He states, ââ¬Å"she got the eyeâ⬠which shows that she is a flirtatious and an immoral woman because she has only been married for two weeks. We will write a custom essay sample on Curleys Wife or any similar topic only for you Order Now Candy also describes her as a ââ¬Å"tartâ⬠(a tart is a woman who dresses or behaves in a way that is considered tasteless and sexually provocative). The fact that Curlersââ¬â¢ Wife is introduced through rumors means that the reader has a biased impression of her. Already the reader has been introduced to the idea that Curlersââ¬â¢ Wife is a ââ¬Ëtartâ⬠and an immoral flirtatious woman. This idea is the further strengthened by 1st appearance. Her first appearance of the story is made in the doorway of the bunkhouse, asking the whereabouts of her husband which is revealed to be a weak excuse to make interaction with the workers. She is wearing ââ¬Å"red cotton house dress and red mules, on the instep of which were little bouquets of red strict feathers. â⬠Emphasizing her sexual presence with the color red, but the emphasis of the color red also shows danger because the color red is sometimes associated with danger, which shows she is a dangerous character. Additionally, the bouquets of ostrich feathers, also described as red, on the insteps of her shoes would have been extremely expensive in the time which ââ¬Å"Of Mice and Menâ⬠was set; and that Curlersââ¬â¢ Wife not only wears them on her feet but in the middle of the ââ¬ËDust Bowlââ¬â¢ expresses her desperate need for attention and she is willing to ruin her best pair of shows in order to main he attention of the workers, despite the fact she has a husband. Our image of Curlers wife being immoral women in then further reinforced when she Starts talking to George,â⬠ââ¬ËOh! She put her hands behind her back and leaned against the door frame so that her body was thrown forward. â⬠Not only is Cur lessââ¬â¢ Wife described as a floozy but also a dangerous woman. Upon entering Crooksââ¬â¢ room it is clear that Candy and Crooks are afraid of her when they both ââ¬Å"scowled down from her eyesâ⬠this deliberate prevention of eye contact suggest that they are scared of her or they donââ¬â¢t feel as if they need to dignify her with eye contact. The word ââ¬Å"scowlingââ¬â¢ means that the presence of her displeases Candy and Crooks. In the story we know that both Crooks and Curlersââ¬â¢ Wife are similar in more the one way both are obviously intelligent and perceptive of themselves as well as others, and both contain a deep bitterness stemming from their mistreatment. Both contain a bleak and accurate insight of the fundamental nastiness of people and they are discriminated (When she threatens to get him hung ââ¬Å"l could get so strung so quickly it ant even funnyââ¬â¢ and isolated (In the novella there are many quotes to show that Candyââ¬â¢sââ¬â¢ Wife is a lonely Oman ââ¬Å"l never get to talk to nobody. Et awful lonely. â⬠ââ¬Å"Whatââ¬â¢s the matter with me? Anti I got a right to talk to nobody? â⬠ââ¬Å"Seems like they anti none Of them cares how goat liveâ⬠. ) In the novella she is also linked to The American Dream (Dictionary Definition: is the ideal by which equality of opportunity is available to any American, allowing the highest aspirations and goals to be achieved. Because she is talking to Leonie about what happened to her before she get married (this shows that even though she is married and has a husband to talk to SE still rise to talk to the workers, but it also shows a vulnerable side of her it tells us that maybe she doesnââ¬â¢t get to talk much at her house that she has bad relationship). She reveals that her mother denied her the opportunity to join a traveling show (â⬠I always thought my 01â⬠² lady stole itâ⬠) when she was fifteen and then, years later, a talent SCOUt spotted her and promised to take her to Hollywood to become a movie star. When nothing came of it, she decided to marry Curler, whom she dislikes. ââ¬Å"Well, I wasnââ¬â¢t goanna stay no place where I couldnââ¬â¢t get nowhere or make something of myself, anââ¬â¢ where they stole your teetersâ⬠This tells she left home because she believed and her mother was denying her of her dream and she only married Curler to get away from her mother which leads to question Does she have a good relationship with her husband? Curly is arrogant We know he is arrogant because in the novella he picks with the biggest worker there (Leonie) believing that he has enough strength to take down the biggest worker ââ¬Å"Come on, yea big bastard Get up on your feet. No big son-of-a-bitchy is goanna laugh at meâ⬠Curler is deliberately shouting at Leonie because he thinks he can win because of his arrogance. His wife is a flirt and definitely lacks the attention (the right kind of attention) she should receive from her husband. Sheââ¬â¢s a trophy, and he treats her as such. They had a short engagement (they married the night they met), and Curlersââ¬â¢ wife, from the little we really know about her married Curly for little more than to get away from her mother. Curly and his wife have a very unstable marriage, lacking in communication, love and respect. Curly believes that manipulation, intimidation, and insensitivity provide him with power over a wife who is fact just a lonely, young woman who needs to be loved. Not to et the wife off the hook here; Curlersââ¬â¢ wife is far from stupid. She likes the money and the nice house; she never tries to leave him. But she also holds some power in their relationship. Curly wife possessed his mind, and as Iââ¬â¢ve already stated heââ¬â¢s very jealous. Being the only woman on the ranch, Curly is even more worried about her behavior with the men who work thereâ⬠¦Ã¢â¬ ¦Ã¢â¬ ¦ If he didnââ¬â¢t know where she was for even a minute, he was off looking for her. Example;â⬠You seen a girl around here? â⬠he demanded angrily. â⬠She made him crazy and enjoyed it. So ultimately, neither one of them are very happy itââ¬â¢s a pretty unhealthy relationship. How to cite Curleys Wife, Papers
Sunday, May 3, 2020
Biotechnology Genetically Modified Foods Essay Example For Students
Biotechnology: Genetically Modified Foods Essay Throughout the advancing technology of today, human culture is becoming revolutionary with science and all of its components. Genetically modifying foods presents positive opportunities in agriculture and human health. Furthermore, more scientifically advanced modifications that select genetically superior plants, have enhanced the yield of crops, improved storability, and increased disease resistance. To simply remove genes from one organism and transfer them to another is generally harmless if we take appropriate precautions. This often debated issue holds many objections. Moreover, one may claim that modifying genes at all is unnatural and evaluates a sufficient risk to many different organisms and species. However, the current technology we possess provides us with the capabilities to go beyond our limits. Why draw the line here? Genetically modifying foods presents positive and beneficial opportunities. In most cases, we are not eating those genes. By the time a genetically engineered corn plant has been processed into corn oil, virtually none of the genes or the proteins they produce is left in the food. Transferring genes from one plant or animal to another provides an advantageous outcome to this production. A better resistance to weeds, pests, and diseases is produced as well as better yield and a more efficient use of land. Additionally, altering genetics in foods contributes to a better texture, flavor, and nutritional value of a product. Therefore, there is a longer shelf life and less herbicide or other chemicals are used in the production of genetically modified foods, which provides a healthier option and an increased selection for the consumer. Biotechnology is going to help solve problems that we face going into the next century such as reduction of allergies, development of more nutritious foods, and an increased nutritional production to feed a growing population. Subsequently, changing one or two genes does not make a food unacceptable. Religious and vegetarian groups would object to genes from some species, while adequate protection can be given with labeling the product. Ethically, one may argue that it is radically useless to modify foods genetically or that agriculture is already too technological and it will only progress more negatively. However, it is likely that increasing numbers of genetically modified foods will emerge in the near future with more variety of modifications and associated benefits. Generally, genetically modified foods will affect the lives of most people in the areas of food, medicine, and environmental protection as it meets the modern technology of today. This advancing technology requires careful regulations to ensure that there is no threat to human health in introducing this production system. Proper labeling, accurate product information, and the provision of species are some of the measures that one can review as a means of ensuring public confidence in the safety of genetically modified foods. Additionally, this is also effective as a means of providing those with objections to the technology with a means of avoiding these foods. Fundamentally, by altering the genes of specie for the benefit of human race and its development is simply not changing the rules in life, but rather it allows us to progress into a new revolution of advancements for the future. .
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