Tuesday, April 14, 2020
Sunday, April 12, 2020
Why I Want to Be a Doctor - The Purpose of Writing an Essay Sample
Why I Want to Be a Doctor - The Purpose of Writing an Essay SampleA lot of people wonder why I want to be a doctor. A lot of people ask me how they can find out more information about becoming a doctor. This article will explain the purpose of the online writer and how to write a good essay sample that will help you.Why I want to be a doctor? To answer this question, you have to first understand what a doctor does. Doctors provide medical services to people who are ill. And you may have heard about this profession.This profession is not easy, but it is very rewarding as well. The importance of this profession cannot be stated enough. And it also takes a lot of work, sweat and blood.You may be wondering how you can become a doctor. You can do your own research, or you can take some courses at a school. Some people also opt to go to an institute to learn about the profession. You may be able to find other people with the same interest in becoming a doctor.This may be an option for you if you are interested in pursuing a different career path. In the writing process, you will get to know how you should organize your knowledge, abilities and interests. You will have to utilize your analytical skills in order to produce a good essay sample.It's not easy to write essays. The more writing you do, the more you will start thinking about what you have written. If you want to improve your writing, there are some helpful tips that you may need. Read some good books, watch some instructional videos or listen to some audio resources. With these, you will be able to improve your writing skills.How can you find a perfect essay sample? You may simply just check the internet for websites that offer some writing tips. But before doing so, you should understand that you have to give some effort in order to find a good essay. If you don't have any idea on how to make a good essay, you can ask someone who knows about it.
Wednesday, March 11, 2020
Investigation of the chromatic aberration of a converging lens Essays
Investigation of the chromatic aberration of a converging lens Essays Investigation of the chromatic aberration of a converging lens Essay Investigation of the chromatic aberration of a converging lens Essay Chromatic aberration arises from dispersion- the property that the refractive index of glass differs with wavelength of light. The focal length of a lens is determined by a combination of its geometry and the refractive index of the material from which it is made. The refractive index varies slightly with the wavelength of the light that is being transmitted. This means that the focal length of a lens will vary for different colours of light. For blue light (short wavelengths), the focal length is larger than that of red light (long wavelengths). Prediction It was predicted that the values of the focal length of the lens obtained from red and blue light are different, given that the standard focal length is 10cm. Proposed Method: The method is to use the lens formula. 1/f = 1/u +1/v To use this formula both the object distance (u) and the image distance (v) need to be measured. This method is not as simple as method 1 above, but the result obtained will be more accurate. Therefore, the focal length of a converging lens in this experiment was determined by method 2. Detailed Procedures: All the lights were switched off to ensure the laboratory was dark. 1.The apparatus were set up as shown in the diagram below. Some black cupboards were put surrounded the apparatus to provide light insulation. 2. The light bulb, object grill, appropriate light filter, lens, image screen were positioned along a straight line 3. The light bulb was fixed at the end of the fixed metre rule (exactly 100cm). The object grill was placed in front of the light bulb in order to give a clear image. 4.The lens and screen were positioned against the metre rule in a straight line with the object grill so that all their positions can be measured. The lens was started approximately 60cm from the grill. The experiment was firstly started with white light (no light filters) 3.The 12V power supply was switched on. The screen was moved until a sharpest (brightest) image was formed on the screen. 4.The position of the grill (a), lens (b) and screen (c) against the metre rule was recorded. 5.Values for u and v were calculated by finding the differences between the positions. 6. 1/u and 1/v were calculated. 7. A graph of 1/u against 1/v was plotted. 8. The above procedures were repeated with red and blue light filters respectively. 9. The above method was repeated three times for each measurement of three different colours of lights to ensure that the results were accurate List of Apparatus: Light bulb (light source) Red and blue light filters (turn white light into red and blue respectively.) Object grids (to help to make the image clear) Converging lens (focal length=10cm) Lens holder (to hold the lens firmly) Image screen (so image can be cleared seen and observed) Metre rule (to measure u and v) 12V power supply (supplies power to the light bulb.) Variables to be considered (fixed and changing) The positions of light bulb and object grid are fixed during the experiment. The positions of the lens and image screen vary in order to obtain different sets of values of distance (u) and the image distance (v). Intended readings (number and range) The object distance (u) and the image distance (v) need to be measured Design justification Explanation of principles The lens formula (1/f=1/u+1/v) was used to determine the focal length of the lens in order to find the difference in focal length of a converging lens when used to produce images with red and blue light. A lens will not focus different colour in exactly the same place because the focal length depends on its geometry and the refractive index of the material from which it is made. for blue light (short wavelengths) is larger than that of red light (long wavelengths). The amount of chromatic aberration depends on the dispersion of the glass Design justification calculations. Lens formula 1/f = 1/u +1/v A graph of 1/u against 1/v was plotted. when 1/v = 0 then 1/f = 1/u and when 1/u = 0 then 1/f=1/v Consideration of Errors The values were suitable for producing a good line. Possible sources of errors The range of data was not big enough. The image was not clear enough The apparatus were not positioned in a straight line. Implementing Place the light and screen at opposite ends of the optical bench, and move a converging lens until a sharp image is formed on the screen. The distance between lens and screen is (nearly) the focal length of the lens. Short (blue appearing) wavelengths are refracted more than long (red appearing) wavelengths. Consequently, lenses like the one shown above will not image light all in one place. Chromatic aberration arises from dispersion- the property that the refractive index of glass differs with wavelength. positioned along a straight line Data Evaluation Identification of Sources of Error Possible sources of errors The range of data was not big enough. The image was not clear enough The apparatus were not positioned in a straight line. Variations in readings Each set of readings was taken twice to ensure the accuracy. As seen from the graph, there is no anomalies The actual outcome was very similar to the expected result. Summary The chromatic aberration can be corrected by making the lens by different glass.
Monday, February 24, 2020
The Cove Movie Review Example | Topics and Well Written Essays - 500 words
The Cove - Movie Review Example e cameras were positioned in such a way that Taiji fisherman had no clue about their presence which is wrong concerning it was their country and they should have been given full information before recording their hunting activities by filmmakers. Also, it is argued that much of the information unveiled in the film is edited by the producers in such a way that real facts are left mutilated and twisted. Real information is not conveyed to the world, rather it is edited in a wrong way. Secret filming involving use of high-resolution cameras disguised as rocks and underwater microphones is the cause of conflict between the documentarians and Japanese fishermen. The cameras were in fact so well hidden to capture hunting footage of dolphins that the crewmen themselves had a hard time finding those cameras later. Many have argued about whether the film should even be considered a documentary or not given the fact that certain scenes look heavily staged due to the possible use of choreograph y. The portrayal of dichotomy between the crew and local fishermen in The Cove does not reduce conflict in any possible way. Rather, it has served to create new instances judging by the huge political and national upheaval caused since the filmââ¬â¢s release. There is more anger and belligerence now than ever before for the Western media and activists in Japan. Not only they see the movie as a direct breach of their privacy, but they also consider arguments raised by the Western activists as ethnocentric. This is because they are trying to judge the Japanese culture through the lens of their self-created cultural standards. Very defiant behaviour is maintained by Japanese people towards the anti-whaling activists. The film is an effort to force Japan to curb dolphin hunting leaving no room for negotiation. This is a wrong strategy and is responsible for creating new troublesome instances like riots between Taiji fishermen and foreign activists. The Japanese people have openly object ed to
Saturday, February 8, 2020
Management information system Case Study Example | Topics and Well Written Essays - 500 words - 1
Management information system - Case Study Example Each activity is interrelated and monitored accordingly. ERP takes a formal business approach. The approach is based on business model that is tested and well defined. For example, there is already a well defined logistics management or supply chain management model. All the data is maintained in a centralized database. All information relating to different activities of the organization are all stored at a single place and can be accessed when needed. Changing to ERP is expensive as the entire business process needs to be modified but proves to very beneficial once implemented. Benefits of implementing ERP The whole business process becomes very effective and efficient as a result of ERP implementation. As the different units like the development team, sales team, customer service, deliver team, all will be working i8n tandem and this will make the whole system more effective and also economical. Inventory can be managed better. The production team will know at any time how many uni ts are there and what is the demand as it is all automated. There is better co-ordination between the various departments in the organization. Customer service can be improved manifold as the communication inside the organization will be faster and also the lead time will be reduced.
Wednesday, January 29, 2020
John Steinbeck Essay Example for Free
John Steinbeck Essay Of Mice and Men (to now be referred to as M+M) is full of human suffering for a number of reasons. The foremost is that Steinbeck wants to paint a picture of the real life for men, and women, working in the unstable environment that was 1930s America. His book, although it is fiction, is based upon the reality of ranch life during the Great Depression. As Steinbeck released M+M in 1937, he would have had ample fact to base the novella upon truths. The book centres on the real tragedies of real men and the dream that was fantasised about and yet rarely achieved. By using reality as a base for his novella, Steinbeck allows the reader to empathise with the harshness and fear that is represented by ranch life. Although some parts of the book seem as though the characters have been through unbelievable scenarios, we must remember that to create the feeling of real human suffering, Steinbeck used a microcosm of all ranch workers. This is so we can see the full extent to which ranch life, the Dust Bowl and 1930s America, actually affected the masses. A main aspect of this suffering is the loneliness which all of the characters, bar George and Lennie, experience. In M+M Steinbeck has a small, yet effective, cast of characters, all of whom embody suffering in one way or another. The main characters are George and Lennie and Steinbeck uses them to express the longing for freedom. George is a victim of suffering in many ways. He suffers because he is bound to Lennie and must look after him. Although at points in the book, George expresses regret about having Lennie; he will not let him go for fear of being alone. George would rather look after Lennie than be on his own. Cause I want you to stay with me. George experiences the loss of jobs and therefore the loss of money through the Great Depression and also Lennies naivety, which often causes trouble for the pair, especially when coupled with Lennies strength. Reasons, for which, the pair was forced to run away from jobs in Weed. This, in turn, makes their lives harder as they struggle to stay financially stable and to find a place in which to live in relative comfort. George also suffers the loss of a dream. For a time, George has envisioned a house of his own in which he lives with Lennie. It has become a reassurance for the men, that everything will turn out right and that they should keep hope. It is the opposite of their suffering. Were gonna have a little house When George shoots Lennie all of this becomes false. There is no longer a sanctuary for the men because without Lennie the microcosm, their microcosm, of the American Dream cannot, and will not, come to fruition. This is where George experiences the mental anguish and suffering at losing both his best friend and his hopes for the future. Psychologically the suffering overwhelms anything that George has felt before and Steinbeck shows us the fragility of life and the unpredictability of the ranch. For Lennie, the suffering is that of a different kind. Due to his mental disabilities, he isnt affected by a fear of loneliness as the others are. To him, George will always be there. This does not mean that he feels no suffering throughout the story; in fact he perhaps suffers the most without realising it. Lennie is angry and scared when Crooks suggests that George might not come back. This is where Lennie suffers the most, he is victimised by Crooks and he doesnt know what to do. Crooks chooses Lennie to attack because he cannot do it to anyone else. In this there is a certain irony, as it is Lennies innocence and naivety which lend themselves to Crooks in bullying him. Spose he gets killed or hurt so he cant come back. Lennie shares the same ideals as George, especially that of the dream home they could have. In Lennies case, he is more preoccupied with tending the rabbits than what the benefits of not working could bring him. How I get to tend the rabbits. Lennie suffers as a child suffers; this is because, mentally, he is a child, despite the fact that he is physically a grown man. We see evidence of this child-like suffering when he blames himself for what has happened to their jobs, when he hallucinates by the brush. You do bad things He suffers from grief when he kills his mouse and his pup by accident and he also suffers at the hands of Curley, although he fights back, he still feels scared and vulnerable, as a child would. George is the one who tells him what he should do. Get im Lennie!.. I said get him. It is easy to assume that George uses Lennie for his own ends but, as we see in the story, this is not true. In fact when it comes to the ultimate suffering, Lennies death, George makes it more bearable for Lennie and shoots him with mercy. Steinbeck is trying to show that although ranch life was full of suffering, there were cases where true friendships/relationships might occur. However, Steinbeck also uses Lennies death to mean that hardly anything survived life on the ranch, whether it were friendships or people themselves. Slim and Carlson do not have their own cases of suffering, instead they symbolise the average ranch workers life. They suffer from low pay, poor quality of life and loneliness. The hardships of the ranches are shown in Carlson especially, as he has no feelings for Candys dog or Candy, only that the dog is making his life worse than it already is. God awmighty, that dog stinks. Although Slim suffers from the same difficulties as Carlson; he reacts in a different way. He is calm and considerate, embodying those who were kinder in the harsh life of the ranch.
Tuesday, January 21, 2020
The Dentists Office Essay -- Descriptive Writing Examples, Observation
The Dentist's Office Dr. Rust's Office, these three words echo throughout my head and I can't breathe. I sit in this awful discomforting place. My body shakes in terror and Suddenly I hear a soft comforting voice say my name, "Genna, Dr. Rust is ready to see you now." On the outside, I am smiling and happy, but on the inside, I scream in terror. Although I had been there and experienced that extreme pain many times before, I dreaded yet another visit to the dentist. Fifteen minutes ago I drove up to the old brick building in Delta, Colorado. Out front was an old wooden sign reading, "Rust, P L D.D.S." I got out of my comfortable homey car, and headed toward the door that said, "ENTER." I took a deep breath and opened the door. A clean but musty smell instantly filled my lungs. The old place was very cold and uncomfortable. The lady at the desk smiled at me and said, "Have a seat it will only be a few minutes." I turn around to look for the chairs and saw the west wall covered with old cracked wallpaper plastered with flowers. I glance behind me and see the receptionist desk once again, and the bulletin board on the wall next to it with dentist jokes and advertisements all over it. The receptionist smiles at me again and I turn back around. I see that the North and South walls are covered with old wood paneling. One wall has the door in which I just entered, and the other has the dark tunnel leading to the exam rooms. I spot the chairs just across the waiting room on both walls. I quickly choose the end one with green and orange flowers covering it and sit down. When sitting, I look down at the floor and I am not surprised to see the ancient gold shag carpet beneath my feet. I Sit in the freezing cold waiting room,... ..., and maneuvered its long bendy stem until it pointed right into my mouth. As he began to work, I stared in a daze at Dr. Rust's thick glasses. When he was done filling my tooth, I got out of the enormous chair and made my way back to the waiting room. I said, "goodbye" to the nurse and left that awful place. Outside, I took a deep breath of cool fresh air. I practically ran to get inside my safe car. When back inside i cried in excruciating pain, I couldn't even feel my face. I sat there for a while thinking of those three terrifying words, Dr. Rust's office. I inserted the key into my ignition, turned it and drove away. When I knew I was home safe, I looked into my rear-view mirror. When I saw that old rickety building filled with bad experiences, I realized that that had been the most uncomfortable place I had ever visited, and I surely wasn't going to return.
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