Pros And Cons Of Wind Power Environmental Sciences Essay

Pros And Cons Of Wind Power Environmental Sciences Essay Wind power has been used by people throughout history and converted into usable energy. Small windmills have been providing power for rural homes throughout the world since almost a hundred years ago. They were used for powering water pumps and also converted wind into useable electricity for homes. In the 1930s, programs to bring electricity to more remote areas extended the electrical grid system to these areas causing windmill generated power to gradually be replaced by electricity generated by power stations which burnt fossil fuels such as oil and coal to generate electricity. This eventually caused the disappearance of windmills in rural areas. However, in recent times, new more modern and advanced wind machines are beginning to appear on the landscape of many regions of the world. Discovery of windy rural areas has enabled people to harness the power of the wind in much larger quantities than ever before. Through technology, it is possible to now generate clean, cost effective, and renewable energy. This could range from a single turbine powering a single landowners home and facilities, to large scale wind farms which could supply power to the grid itself and in turn provide electrical needs to hundreds of homes. Advancement of technology and it declining cost makes wind generated electricity more competitive with fossil fuel generated electricity. The cost of wind generated electricity has decreased greatly since the beginning, and it is estimated that wind power supply ten to twenty percent of electricity needs in the United States could within three to four decades. Despite these the impressive advantages of wild resources, it is still only in an infancy stage in many parts of the world. Only recent pollution laws, increase in fossil fuel costs and the fear of the exhaustion of fossil fuels have led to the intense development of wind power. Wind energy has many advantages, for example, wind is free and with modern technology it can be captured efficiently. Wind is naturally produced when there are pressure differences in the air above the earths surface. When air gets heated up, it rises creating a low pressure area. Cooler, high pressure air from the surroundings the rush in the take its place. This creates wind. This is especially true in coastal areas due to the fact that water takes longer to heat up as compared to air, therefore resulting in a great difference in pressure between the air above the water and land, which results in exceptionally strong winds. Mountainous areas also have strong winds that could potentially power wind turbines. As different slopes are heated at different times of the day, pressure differences are created in the mountain range creating wind. In certain instances, the shape of the mountains and valleys may also act as a funnel, causing the wind to accelerate to higher speed as the approa ch these areas. Once wind turbines are built in place, the energy they produces do not cause green house gases or any other form of pollution. This means that with time, the operation of the wind turbine would actually make up for whatever carbon footprint it has left because of its construction. The power produced by the wind turbine over time would exceed what was used in the form of fossil fuels, and raw materials during it construction. Given enough time, a wind turbine would actually pay for its own construction and maintenance through the revenue it generates by producing power. Although wind turbines often reach up to above 50 meters tall, each single turbine only takes up a small plot of land. This is due to advancement of technology where thanks to modern materials and designs. Wind turbine towers are and with space aged materials which are strong and light and designed to have minimum drag resistance. Also because turbines have to be spaced a certain distance from each other, the land in between them can still be used for other purposes such as farming or even for building homes. Remote areas which are located far away from the main power grid can use wind turbines to produce their own electricity. Just a few wind turbines could potentially supply power to a small community located far away from the power grid, saving the cost of extending the grid to the community. Wind turbines are also available in many different sizes. This means that people from all walks of life can make use of wind turbines be it for personal use to supply electricity to a single home or to supply power to business or even small town or villages. As wind occurs all over the world, there is no place in the world that the power of wind cannot be harvested. This could be an advantage for third world countries where there is no electricity supply. Since wind turbines only require an initial start-up cost and minimal maintenance cost, it could be possible to provide electricity for poorer settlements or countries. However, the strength of wind will almost never be constant. It varies from nothing at all to storm force. This implies that wind turbines will not be able to produce consistent electricity at all times. There will even be times when it produces on energy at all. Due to this, the wind turbine has to be located in a location where there is enough wind so that it would be able to run at energy producing speeds for most of the year. For this to happen, many factors have to be taken into consideration. Wind speed data has to be recorded for a specific location at least a year to ensure that the wind conditions would be suitable for building a wind turbine. Other factors that have to be considered include any obstacles that the wind may encounter before it is able to reach the turbine such as buildings and trees. Location of wind turbines due to their nature would usually have to be located in open areas. This in turn brings other difficulties such as ease of transportation of materials to the build site and connection to the power grid. Furthermore locations with the highest winds are usually costal areas. Building offshore wind turbines, although does not require any land space, is very expensive to build due to the extra structural reinforcements needed to build standing structure in the ocean. Many people also feel that the countryside should not be spoilt by building large structures would reduce the aesthetic appeal of the environment. Conservationists also oppose the building of wind farms for fear that they may kill of interfere with wild life such as migratory routes of birds. Wind turbines, depending on perspective, are noisy. Each turbine generates about the same level of noise as a car travelling at approximately 70 miles per hour. Therefore if there are homes located near the wind turbine, residents may be disturbed by the noise generated by the wind turbines. During the manufacture of wind turbines, pollution is also produced in the form of energy consumed for fabrication of materials and pollution produced by vehicles used during the transportation and building of the turbines. Therefore it cannot be said that wind power produces no pollution at all. Finally, if an entire communitys needs were to be provided by a single wind farm, the wind farm itself would have to be extremely big considering that the largest turbines available today would only be able to power just under 500 homes. If a town or city of 100, 000 homes were to run on solely wind power, then a farm of almost 200 turbines would be needed. Taking the distance needed between each turbine, then an immense area of land would be needed just to power this town. After considering both advantages and disadvantages of wind turbines, I have come to the conclusion that although it is impractical and unrealistic to supply the entire worlds power with wind power, it is a highly efficient way of harnessing free energy from the environment. If as much available space as possible were to be used as wind farms, coupled with other renewable energy sources such as solar, bio-fuels, and hydro-electric power were used to substitute fossil fuels whenever possible, then the impact on the environment would be greatly lessened. This would greatly reduce the usage of fossil fuels, thus giving researches more time to come up with solutions to the worlds energy needs without relying on fossil fuels which will eventually run out and also how to reduce the load of burning fossil fuels on the environment.

Do You Think Adhd Is a Genuine Disorder or Just a Normal High Energy

ADHD Brandy Fields Chapter 13: Do you think ADHD is a genuine disorder or just a normal high energy? Researchers say that ADHD is not caused by too much sugar or poor schools, but they have found that kids who watch a lot of TV when they are toddlers are more likely than average to display ADHD symptoms when they are 7. It often coexists with a learning disorder or with defiant and temper-prone behavior. The U. S. National Institute of Mental Health reports that ADHD is heritable and they are trying to find out which genes are the culprit.Critics said that in the decade after 1987, the proportion of American children being treated for ADHD nearly quadrupled. By 2005, a Gallup study showed that ten percent of American 13- to 17-year-olds were being medicated for ADHD. Some of its symptoms can include: always being energetic, chattering away, darting from one activity to another, rarely settling down to read a book or focus on a game, fidgety, reckless and reacts to small things. Docto rs keep diagnosing kids with ADHD and then treat it with stimulants like Ritalin & Adderall that aren’t supposed to be addictive.I personally think that ADHD is too often diagnosed as a psychiatric disorder when it’s usually just normally high spirited kids. I think it goes back to our parental skills and styles. When we leave our kid in front of the TV for it to babysit them for us, what do we expect? Kids are supposed to be full of energy and curious about the world. If we don’t let them run that energy off by doing constructive positive things, it will just build up and turn into hyperactivity and even aggressiveness. I think it is ridiculous that we have children and then are too busy to have time to raise them properly.Then we wonder why we have heathens running around. I believe if we raise our kids the right way (yes, it is difficult, no one said it would be easy), ADHD wouldn’t be as much of an issue as it is today. I also feel like drugging our c hildren to fix our mistakes are completely 100 percent wrong. I think that medicines like those are a very bad choice for our children. Maybe in a few years or decades, we will see the damaging long-term effects that they have on our children more clearly, but by then it may be too late. I hope not. Do You Think Adhd Is a Genuine Disorder or Just a Normal High Energy ADHD Brandy Fields Chapter 13: Do you think ADHD is a genuine disorder or just a normal high energy? Researchers say that ADHD is not caused by too much sugar or poor schools, but they have found that kids who watch a lot of TV when they are toddlers are more likely than average to display ADHD symptoms when they are 7. It often coexists with a learning disorder or with defiant and temper-prone behavior. The U. S. National Institute of Mental Health reports that ADHD is heritable and they are trying to find out which genes are the culprit.Critics said that in the decade after 1987, the proportion of American children being treated for ADHD nearly quadrupled. By 2005, a Gallup study showed that ten percent of American 13- to 17-year-olds were being medicated for ADHD. Some of its symptoms can include: always being energetic, chattering away, darting from one activity to another, rarely settling down to read a book or focus on a game, fidgety, reckless and reacts to small things. Docto rs keep diagnosing kids with ADHD and then treat it with stimulants like Ritalin & Adderall that aren’t supposed to be addictive.I personally think that ADHD is too often diagnosed as a psychiatric disorder when it’s usually just normally high spirited kids. I think it goes back to our parental skills and styles. When we leave our kid in front of the TV for it to babysit them for us, what do we expect? Kids are supposed to be full of energy and curious about the world. If we don’t let them run that energy off by doing constructive positive things, it will just build up and turn into hyperactivity and even aggressiveness. I think it is ridiculous that we have children and then are too busy to have time to raise them properly.Then we wonder why we have heathens running around. I believe if we raise our kids the right way (yes, it is difficult, no one said it would be easy), ADHD wouldn’t be as much of an issue as it is today. I also feel like drugging our c hildren to fix our mistakes are completely 100 percent wrong. I think that medicines like those are a very bad choice for our children. Maybe in a few years or decades, we will see the damaging long-term effects that they have on our children more clearly, but by then it may be too late. I hope not.

Claude Debussy

Claude Debussy: The Father of Impressionism Claude Debussy was among one of the most popular twentieth century composers of his time. He is known for his famous â€Å"Clair De Lune† and â€Å"La Mer†. This impacted the 20th century music genre with his difficult impressionist technique. He was among the few to be influenced by symbolist poets and impressionist painters, which resulted in true originality. He was the founder of Musical Impressionism, and impacted numerous composers such as Maurice Ravel, Igor Stravinsky, Bela Bartok, Alban Berg, Anton Webern, Pierre’ Boulez. On August 22nd 1862, Claude-Anchille Debussy was born.He was born in Saint-Germain-en Laye, France. His father owned a shop where he sold china and his mother was a seamstress. He began to take piano lessons when they moved to Paris at age seven with an older Italian violinist named Certutti. His aunt kindly paid for them. His talent started to become noticeable, that in 1872 he entered the Pa ris Conservatoire and studied there for eleven years. While he was there he studied Composition, Music theory and history, Harmony, piano as well as organ and solfege. He started to favor dissonance and intervals that were not favored during this time.He was a brilliant pianist and a exceptional sight reader. Starting in the summer of 1880, he accompanied Pytor IllyichTchaikovsky where they traveled throughout Europe. He became the winner of the Prix de Rome in 1884 with his composition L’enfant prodigue. He then received a scholarship to Academie des Beaux-Arts which they provided a four year residence at the Villa Medici at the French Academy in Rome to further his studies into 1887. He composed four pieces that year that were sent to the academy. He then became interested with the Wagnerian Opera, which had a lasting impact on his work.He later died in 1918 of cancer. â€Å"I am trying to do ‘something different' in a way reality, what the imbeciles call ‘impr essionism' is a term which is as poorly used as possible, particularly by art critics. â€Å"(Debussy) Debussy was the father of impressionism. Impressionism was an early twentieth style of musical composition, which involved flourishing harmonies, clever rhythms and unusual wavering tones. It originated in France where Debussy was born and lived. It was about an atmosphere about music more than the emotion that is expected from music or a story like program music.It was all about shaping new sound effects. These effects included long atypical chords, fast moving sounds when it came to piano dynamics, bitonality, and developing interesting timbres of an instrument specific articulation. Impressionism was mainly focused on Dynamics and Instrumentation. It was created to draw impressions not to necessarily to draw a clear picture. It was designed to create a mood or an atmosphere. The use of Harmony was a big part of Impressionism. An example of Debussy’s work would be â€Å" L’isle Joyeuse† which was influenced by the painting by Jean Watteau.It has no harmonic purpose and sometimes the melody is everywhere, which means there is no steady beat. The piece, in a way does what it wants without following any rules. This was a major part of Impressionism. An example of Claude Debussy’s work that shows the style of Impressionism is â€Å"La Clair De Lune†. It was composed in 1888 and is the third movement of the â€Å"Suite Bergamasque†. â€Å"The choice of compound triple meter for this movement shows the contrast to the dance movements and helps allow Debussy freedom to articulate the music differently.In addition, Clair de Lune is compositionally, the most adventurous piece of the suite. The positioning within the suite is important; it is the suite’s third movement, and is the lyrical climax of the suite. The use of structure and proportion within the movement is significant; Most important of all, they show ways in which the forms are used to project the music’s dramatic and expressive qualities with maximum precision†(Howat 1). It’s original name was â€Å"Promenade Sentimentale†. It was not published until 1905. It was inspired by Paul Verlaine's poems and was influenced by Verlaine's earliest collections.The name means moon-shine or moon light and is the name of one of Verlain's poems. Another example of Debussy’s work of Impressionism is â€Å"La Mer†. Debussy composed it in 1903 and it was completed in 1905. He then premiered it that same year with The Chicago Symphony Orchestra. Debussy’s influence came from the painter J. M. W. Turner. They both had intertwining interests with the sea. With the rich melodic lines, to the rhythmic regularity, and the use of harmonic progressions helped create the sound of the waves Debussy was looking for. â€Å"We must agree,† Debussy writes, â€Å"that the beauty of a work of art will lways rem ain a mystery, in other words, we can never be absolutely sure how it is made†(Trezise 102). In my opinion, these were his best works because of how irregular his melodies are and how he harmonizes in each piece. His use of harmonies creates an atonal sound so that the chords do not sound nice or match together. He creates this â€Å"dream like† sequence that takes you off into another world. It is almost like you are sleeping, and dreaming at the same time in both pieces. In â€Å"La Clair De Lune†, it is more like a dream sequence that gives you the harmonies that are irregular.It also has no specific melody so it could possibly have no end. Both pieces are great examples of Impressionism and Debussy really knew how to make it happen. Claude Debussy was the father of Impressionism and truly changed the way someone can analyze music. He created a new movement in music that inspired other twentieth century composers to follow in his footsteps. With his pentatonic scale, and his use of atonality, Debussy shaped what was the era of new music. Without his interest in creating new things, today we would not have the fluence from him on impressionism.

Body Piercings And Its Impact On Society - 1665 Words

According to insurmountable sources, piercings, especially in the ear primarily, have been around since 2500 BC and have been worn not only by women, but by men as well all around the world including William Shakespeare and Julius Caesar. As body piercings become increasingly popular in modern culture, it has brought many researchers to the realization that this trend is a tragic insight into an individual’s psyche as well as their physical being and opportunities in the workplace even though it’s seen as a way to express one’s self. Socially and economically, body piercings, among other forms of body modifications, have not only benefited individuals but may also be quickly destroying them. Historically, body piercings have drastically†¦show more content†¦Many practices relating to getting the earlobes pierced had varying reasons such as superstitions or afterlife obligations. For example, the mummified body dating back to 5,000 years old may have participated in a primitive tribe that held to beliefs in the magical powers of piercings to warn off evil spirits and demons which entered through the ears but could be repelled by metal. Other studies indicate that sailors also wore piercings according to superstitions that it would improve eyesight and keep them safe while traveling at sea (Laura). A single earring could also pay for a burial if a sailor s body washed up along shore. Similarly, piercing has many interpretations today, especially when it comes to self-expression or as a puberty ritual which explains the increased growth in piercings among adolescents (Laura). Consequently, however, this has pushed for further research into why piercings are resulti ng in such exponential growth as the years pass. Unfortunately, due to stereotypes and expansion of medical awareness to mental instability and illness, many worry that piercings in adolescents are more than simply â€Å"self-expression.† A study over body piercings, tattoos, self-esteem, and body investment in adolescent girls discusses how body art intertwines body image, self-concept, peer acceptance, self-esteem, and even self-mutilation towards motivations behind getting a piercing (or tattoo). For example, bodyShow MoreRelatedFreedom of Self- Expression: Tattoos and Body Piercings at 16 Should be Permitted1232 Words   |  5 Pagesshould have permission to get tattoos and body piercings. I believe that teens should have the authority to get them on our own. The current Texas law states that any person under the age of 18 must have parental permission before getting a tattoo or any body piercing. Identification is required to verify the persons age. 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