Wednesday, May 6, 2020

Renewable vs. Non-Renewable Energy Resources - 1840 Words

Renewable Vs. Non-renewable Energy Resources: Environmental and Economical Advantages and Disadvantages Imagine a life without washing machines, dryers, refrigerators, computers, televisions, lights, and cars. Imagine a planet so polluted that smog is in the air so bad that one cannot see very far, lakes and streams are poisoned, and land so badly scarred from people trying to find more energy sources. One day this may be a reality if we do not do something to change how we use our energy resources. This may be the case if society keeps using non-renewable energy resources at its current consumption rate. Our saving grace may be the development and use of using renewable energy resources. Renewable sources not only will help our planet†¦show more content†¦This also costs much money to dig or drill, clean or extract these sources, and to ship them out to other companies. Renewable Energy Resources Pollution Renewable energy resources are clean because they not only come from the environment but there is no need to change chemically the source in order to get usable energy. The sun for instance gives off heat, which warms our planet. This same heat can be used to warm water pipes, which can heat a business or home. This definitely requires no equipment to acquire this energy. The sun as a resource can also excite particles in a solar collector. According to Merriam-Webster dictionary, solar collectors are various devices used in the absorption of solar radiation to heat water or produce electricity, (Dictionary and Thesauras - Marriam-Webster Online, 2007-2008). These excited particles generate electricity. There does not necessarily have to be direct sunlight, for this process. Even on a cloudy day, energy can be produced though lower than on a sunny day. Since the sun will be here for another million to billion years from now this process can continue forever. Using the sun as an energ y source means that no pollution will be generated from it being converted into usable energy. Wind power is another renewable energy source. Wind is generated from the sun heating the Earth. Humans have been harnessing the power in wind for hundreds of years. Humans have used itShow MoreRelatedEssay about Renewable Vs. Non-Renewable Energy Resources1748 Words   |  7 PagesRenewable Vs. Non-renewable Energy Resources: Environmental and Economical Advantages and Disadvantages Imagine a life without washing machines, dryers, refrigerators, computers, televisions, lights, and cars. Imagine a planet so polluted that smog is in the air so bad that one cannot see very far, lakes and streams are poisoned, and land so badly scarred from people trying to find more energy sources. One day this may be a reality if we do not do something to change how we use our energy resourcesRead MoreImpact Of Climate Change Policy On Employment Essay1313 Words   |  6 Pagesthe global warming. In 2013, 81.2% of the energy consumption in the world are produced by fossil fuel (International Energy Agency). Could you imagine how much greenhouse gases are produced? Ever since 1980s, scientist has found that the emission of the greenhouse gases is the major factor contributes to the global warming, which intensify the climate change that the human civilization may collapse one day. In the book This Changes Everything: Capitalism vs. the Climate, the author Naomi Klein describesRead MoreGlobal Warming And The Climate Change1740 Words   |  7 PagesBy 2014, about 81% of the total 98.3 quadrillion Btu of energy used are produced by burning petroleum, natural gas, and coal in the United States (US EIA). 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The switch to these renewablesRead MoreAlternative Fossil Fuel Is Nonrenewable, And It Damages Our Environment Essay1536 Words   |  7 PagesAs we all know the energy we use form fossil fuel is nonrenewable, and it damages our environment badly. The most energy is used in the industrials (31%), the second is used in transportation (28%), the third is used in residential (22%), and the last is used in commercial (19%). We also know that the more we use fossil fuel, the more greenhouse gas effect to our earth and killing our atmosphere by trap the gases and i t make our earth getting warmer and warmer. In this paper will go deep more intoRead MoreRenewable Energy: Is It the Solution?1571 Words   |  7 PagesIntroduction Renewable energy is considered a revolutionary thing, something that can save us from peak oil and climate change, but is it really what it seems? Renewable energy can help ease our predicament. 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Examine Sheriff’s presentation of Stanhope in Act One in Journey’s End Free Essays

In Act One of Sheriff’s ‘Journey’s End’ we see Captain Stanhope presented as a highly respected individual by all members of the rank, who has been affected immensely psychologically by the war. We see Stanhope being respected throughout Act One, which can be seen in the beginning of the play where we see Osborne reacting in a defensive and protective way of Stanhope, saying that â€Å"He’s a long way the best company commander we’ve got† to Hardy on page 4 where we learn of Stanhope’s excessive drinking which makes the audience unsure of Stanhope as a character as Sheriff introduces us to this problem before we have met him, which instantly gives us a poor first impression of Stanhope. Sheriff then builds Stanhope’s character and the audience begin to realise that the effect of war has taken its toll on Stanhope, who we learn is a hardworking, young commander who is struggling with the pressures of the war and uses whiskey to help him get through. We will write a custom essay sample on Examine Sheriff’s presentation of Stanhope in Act One in Journey’s End or any similar topic only for you Order Now It is evident that Stanhope is good at commanding the company, as Osborne states â€Å"You’ve done longer than any man in the battalion. It’s time you went away for a rest. It’s due to you† on page 27, depicting that Stanhope has worked extremely hard in the last three years and should be proud with his achievements instead of being ashamed of himself because of what he has turned into. Osborne is a trustworthy character who Stanhope relies on and is a true friend. We also see Stanhope respected by Raleigh, a young boy who knew Stanhope personally before the war. Stanhope was Raleigh’s inspiration to join the army, saying that he was â€Å"frightfully keen to get into Dennis’s regiment† to Osborne on page 12. He also describes his friend as â€Å"splendid† and describes them as â€Å"terrific pals. † Stanhope had such an effect on Raleigh when they were at school together, and Stanhope even admits that he is Raleigh’s â€Å"hero† to Osborne on page 26. We also see in this scene that Stanhope has realised even more so with Raleigh’s arrival his change and deterioration with his personality in the last three years since the war began, saying â€Å"as long as the hero’s a hero† which he no longer thinks of himself as due to this drastic change. We also see in this scene Stanhope confide in Osborne, explaining that Raleigh’s sister â€Å"doesn’t know. She thinks I’m a wonderful chap – commanding a company† portraying his disappointment in himself and how he feels as if he would let down his love if she knew the truth. He seems extremely passionate towards Raleigh’s sister as he explains that he â€Å"couldn’t bear to meet her, in case she realised† the person he has become and becomes annoyed with Raleigh as he calls him a â€Å"little prig† when he believes he will no longer be able to return to Raleigh’s sister once the war is over. Here we see a vulnerable and ashamed character, which is portrayed by Sheriff as he says â€Å"if I went up those steps into the front line – without being doped with whiskey – I’d go mad with fright. † This conveys the necessity for Stanhope to drink and that he would not be able to command the company as successfully as he does without having had whiskey. Osborne warns Raleigh on page 13, explaining to him â€Å"you mustn’t expect to find him – quite the same† and how the war â€Å"tells on a man – rather badly† portraying the psychological effects of war and how there has been a complete change in Stanhope since joining the war. Raleigh remembers his hero as someone who was anti-alcohol, which he was before the war saying â€Å"the roof nearly blew off† when he caught some boys at school with a bottle of whiskey. This shows the desperation on Stanhope’s behalf to cope with the war and has turned to alcohol for comfort, something that appears he was against three years earlier. Sheriff presents Stanhope as an individual trying to cope with the pressure of the war in Act One, who appears to have changed drastically since the war began, helping the audience understand the psychological effects soldiers due to the war; an issue to which they could possibly relate to as the war was a big part of their lives. How to cite Examine Sheriff’s presentation of Stanhope in Act One in Journey’s End, Papers

Little Albert free essay sample

To support the theory that environment is more powerful than genetics, Watson designed an experiment on an infant commonly known as the Little Albert experiment. This experiment focused on Ivan Pavlov’s process of classical conditioning. Watson believed and wanted to prove that all human psychology can be explained by this process (McLeod, 2008). The other studies that I will be comparing the Little Albert experiment to will be â€Å"Elevated fear conditioning to socially relevant unconditioned stimuli in Social Anxiety Disorder† (Lissek, Levson, Biggs, et all, 2008) and the study of Pavlov’s dogs (Pavlov, 1928). These studies will enable me to make a justified evaluation of the Little Albert study by making comparisons to these two other studies. The Little Albert experiment was conducted by John Watson and Rosalie Rayner in 1920. They chose nine month old Baby Albert for the study because Albert had been reared almost from birth in Harriet Lane home for Invalid Children where his mother was a wet nurse. Albert was deemed extremely stable and well developed which determined his suitability for the experiment (McLeod, 2007). The focus of their study was to continue on from Pavlov’s experiment involving the classical conditioning of dogs, and determine whether this empirical evidence was also evident in humans (Watson, 1924). More specifically, they were focusing on conditioned emotional responses. In determining these aspects they conducted a series of different tests involving a variation of stimulus. Before the experiment commenced, they gave Albert a sequence of baseline tests to determine his initial fear responses to stimuli. They presented him with burning paper, a monkey, a dog, cotton wool, a fur coat (seal), various masks and a white rat. During the baseline, Albert showed no initial fear to these items. Throughout the study these items (fluffy white objects) served as the independent variables. The dependant variable was whether or not Albert cried or showed distress. During the study Albert was positioned on a mattress on a table. Albert was presented with a white rat and just as he reached out to touch it, a metal bar was struck with a hammer behind him. Albert jumped and fell forward, burring his head into the mattress, but did not cry. After these two stimuli were paired on several occasions, Albert was presented with only the white rat. As the rat appeared in front of him he became distressed and turned away, puckered his lips, began to cry and crawled away (Watson, 1924). From this, it became obvious that Albert’s fear had been conditioned. Albert had associated the white rat with a loud noise producing fear, thus having conditioned fear of the white rat. The experiment showed that Little Albert generalized his response from furry animals to anything furry. Albert showed the same reactions as the initial experiment when Watson presented him with a furry dog, seal-skin coat and even a Santa-Claus mask (Watson, 1924). The way in which Albert’s responses were measured was through the amount of distress to the stimuli he presented. The Little Albert study is a highly popular study especially across the field of Psychology. Although the study has provided valuable knowledge and understanding of learned behaviours and the development of phobias, it’s procedures considering ethics are questionable. The fact that Albert was only nine months old deems this study unethical. Albert’s mother was obviously desperate for money to support her son, so the bribe of money probably out-weighted the possible harm caused to her son. Albert’s mother probably wasn’t entirely aware of the potential risks involved. Albert’s fear was supposed to be extinguished at the end of the experiment, but he moved away. Other ethical codes that have been violated in this study are that of the distress that it caused. Little Albert was never desensitized from the conditioning undergone meaning that because he had a conditioned fear of white furry objects, he would forever be terrified of white furry objects (Watson, 1924). In today’s code of ethics, the welfare of the participant/s is the most important factor and under no circumstances should this protection be hindered, unless the participant has given consent to be put under this distress. It is also now deemed unethical to purposely cause distress to a participant in laboratory circumstances (Weiten, 2008). These unethical procedures could have been corrected quite simply. In the study of fear conditioning in people with social anxiety disorder, they conducted what called an extinction process where the participants were desensitized from any fear conditioning that took part throughout the experiment (Lissek, Levson, Biggs, et al, 2008). This experiment is clearly ethical as it was only conducted in 2008 and would have had to have been passed by the ethics board in order to be conducted. The Little Albert study is a valid study; however it was not measured effectively. The way in which Little Albert’s fear was measured was just whether or not he cried or showed distress. The way in which they measured this could have been improved in order to get more valid and reliable results. In this case, the studies operational definition was not valid. The Little Albert study could have used apparatus in order to get more valid results. For example, they could have measured Albert’s fear by assessing his skin conductivity. This would have measured Albert’s distress through measuring the arousals in his skin i. e. weat. They also could have used the blink-startle response measurement as used in â€Å"Elevated fear conditioning to socially relevant unconditioned stimuli in Social Anxiety Disorder† (Lissek, Levson, Biggs, et al, 2008). This method measures how much the participant blinks when presented with a stimuli. If the participant is startled (scared) by something, they will blink a lot more than if they are not startled. The re liability of the Little Albert study is not strong. If the same study was conducted today, the same results would not be found. Little Albert’s responses to the stimuli that he was presented with could have been a result of his general fear of animals, not that he conditioned a fear of white fluffy objects. Most people would agree with me when I say that if you were a nine month old baby and an animal was jumping up at your face, you would be scared and would become distressed. Being a nine month old baby, Albert also could have just been tired, bored, and hungry or just missed his Mother. None of these factors were accounted for during the trials. If the same study was conducted today, it would become extremely obvious that times have changed and so too should the design of the study. The reliability of the experiment is hindered by the fact that the method of measurement is simply observation and there is no concrete evidence being analysed. For example if they were to measure brain activity or use the blink-startle reaction measurement, these results would be a lot more concrete and therefore the study would be classed a lot more reliable. In comparison, the 1928 study of Pavlov’s dogs (Pavlov, 1928) is a lot more reliable even though it is only a few years newer than the Little Albert study. If Pavlov’s experiment was replicated today, very similar if not the same results would be found. The fact that Pavlov used concrete methods of measuring his data deemed his study a lot more reliable. If he was to measure the amount that the dogs salivate by just observing them, it would not be as valid. To conclude, through the evaluation of the Little Albert study and comparison to â€Å"â€Å"Elevated fear conditioning to socially relevant unconditioned stimuli in Social Anxiety Disorder† (Lissek, Levson, Biggs, et al, 2008) and Pavlov’s dogs (Pavlov, 1928) it has come to my attention that the Little Albert study does not comply to today’s code of ethics, the reliability is not strong and could be improved on however it is a valid study, but the operational definition could be improved. I feel that the contributions to knowledge of conditioned fear are valuable to society and has proved useful in various situations and other studies. Future studies on this topic would prove extremely valuable to society and our understanding on fear conditioning. References McLeod, S. A. (2007). Simply Psychology; Nature Nurture in Psychology. Retrieved 3 April 2012

Sunday, April 26, 2020

The Human Eye In Space By Lambert Parker (edited) Essays

The human eye in space by Lambert Parker (edited) Human visual hardware is a result of a billion years of evolution within the earths atmosphere where light is scattered by molecules of air, moisture, particular matter etc. However as we ascend into our atmosphere with decrease density, light distribution is changed resulting in our visual hardware receiving visual data in different format. Some Aspects to Consider: 1. Visual acuity is the degree to which the details and contours of objects are perceived. Visual acuity is usually defined in terms of minimum separable.Large variety of factors influence this complex phenomenon which includes : # Optical factors- state of the image forming mechanisms of the eye. # Retinal factors such as the state of the cones. # Stimulus factors such as illumination, brightness of the stimulus, contrast between the stimulus and background, length of time exposed to the stimulus. * Minimum separable: shortest distance by which two lines can be separated and still be perceived as two lines. "During the day, the earth has a predominantly bluish cast..... I could detect individual houses and streets in the low humidity and cloudless areas such as the Himalaya mountain area.... I saw a steam locomotive by seeing the smoke first..... I also saw the wake of a boat on a large river in the Burma-India area... and a bright orange light from the British oil refinery to the south of the city (Perth,Australia.)" The above observation was made by Gordon Cooper in Faith 7 [1963] and which generated much skepticism in the light of the thesis by Muckler and Narvan "Visual Surveillance and Reconnaissance from space vehicles" in which they determined that a visual angle of ten minutes was the operational minimum, and that the minimum resolvable object length [M.R.O.L] at an altitude of 113 miles would be 1730 ft. This limitation of acuity was revised the next year to 0.5 seconds of arc for an extended contrasting line and 15 seconds of arc for minimum separation of two points sharply contrasting with the background. Orbiting at 237 miles in the skylab it was possible to see the entire east coast [Canada to Florida Keys] and resolve details of a 500 feet long bridge based on inference. Of Interest is the fact that even though the mechanical eye [camera systems] can resolve objects greater than fifty times better than the human eye, without the human ability to infer, interpretation of the data is meaningless. Conclusion: Visual acuity in space exceeds that of earth norm when objects with linear extension such as roads, airfields, wake of ships etc. Stereoscopic vision: the perception of two images as one by means of fusing the impressions on both retinas. In space one has to deal with a poverty of reference points. For hardware evolved in a reference oriented paradigm, this possess a grave problem. Once out of the space craft and gazing outward, the eye can only fix on the stars [without even a twinkle] which for all practical purpose is at infinity ie. without stereoscopic vision "Empty field myopia" prevails. Empty Field Myopia is a condition in which the eyes, having nothing in the visual field upon which to focus, focus automatically at about 9 feet. An astronaut/cosmonaut experiencing empty field myopia focusing at 9 ft would be unable see objects at a range close as 100 ft. If another spacecraft, satellite, meteorite or L.E.M entered his field of vision, he would not be able to determine the size nor the distance. Solution: Man does not face any hostile environment in his birthday suit, the clothing industry and need for walk in closet say it all. In space we will wear our exoskeleton just as we wear winter jackets in winter and we will wear our helmets with visors to maintain our internal environment, filter out all those nasty rads etc. Since Empty Field Myopia is secondary to loss of reference points why not just build them into the visor itself giving the eye points of reference-- create a virtual reality This line of speculation leads to amazing concepts...... PERCEPTION OF COLORS. Studies done by the Russian cosmonauts on effects on perception of colors in space suggests a

Friday, April 10, 2020

Find Out Why the U of I Llc Essay Sample Is Your Best Choice

Find Out Why the U of I Llc Essay Sample Is Your Best ChoiceU of I lc essay sample is one of the favorite essay writing software. It is an outstanding tool to help you write a great deal more than ordinary essay. You can learn different writing styles and patterns that are really advantageous to any educational writing. Moreover, you will be able to tell different student essay styles that are specific to the course.The sample contains several different features. You can use the document with the files open to see various contents. This is certainly one thing that will make a better start to your entire career. You can always tweak your file as many times as necessary to get the style that you want. Using this free u of I llc essay sample will help you save lots of time and money.This software will help you in writing a typical legal faculty essay. Although this may not be your best choice for essays you plan to write, it could help you start in the right direction. Whether you are a first-year student or you have been working in the same school for several years, this might just be the best writing guide you can have.The samples also help you in choosing the format for your essays. The programs may be very user-friendly if you are a beginner. It is a good idea to see what each program offers before using the program in order to choose the best one that fits you best.The special features include providing plenty of suggestions. Some people find that they get overwhelmed by their assigned topics or that the subject matter seems too complicated. This tool can help you become an advanced writer quickly.The online essay writing software can also provide great help in making sure that you don't make any mistakes. In many cases, this could even increase your creativity. You will definitely enjoy all the great ideas you are able to come up with after using this tool.You can easily get started with the basic programs when you have an existing writing history. For most people, the initial program to test out is the one that gives them the most writing tips and sample. The rest will be quite simple, once you are familiar with the settings.

Wednesday, March 18, 2020

Operation Gomorrah in World War II

Operation Gomorrah in World War II Operation Gomorrah - Conflict: Operation Gomorrah was an aerial bombing campaign that occurred in the European Theater of Operations during World War II (1939-1945). Operation Gomorrah - Dates: The orders for Operation Gomorrah were signed on May 27, 1943. Commencing on the night of July 24, 1943, the bombing continued until August 3. Operation Gomorrah - Commanders Forces: Allies Air Chief Marshal Arthur Bomber Harris, Royal Air ForceMajor General Ira C. Eaker, US Army Air ForceBritish: approx. 700 bombers per raidAmericans: approx. 50-70 bombers per raid Operation Gomorrah - Results: Operation Gomorrah destroyed a significant percentage of the city of Hamburg, leaving over 1 million residents homeless and killing 40,000-50,000 civilians. In the immediate wake of the raids, over two-thirds of Hamburgs population fled the city. The raids severely shook the Nazi leadership, leading Hitler to be concerned that similar raids on other cities could force Germany out of the war. Operation Gomorrah - Overview: Conceived by Prime Minister Winston Churchill and Air Chief Marshal Arthur Bomber Harris, Operation Gomorrah called for a coordinated, sustained bombing campaign against the German port city of Hamburg. The campaign was the first operation to feature coordinated bombing between the Royal Air Force and the US Army Air Force, with the British bombing by night and the Americans conducting precision strikes by day. On May 27, 1943, Harris signed Bomber Command Order No. 173 authorizing the operation to move forward. The night of July 24 was selected for the first strike. To aid in the operations success, RAF Bomber Command decided to debut two new additions to its arsenal as part of Gomorrah. The first of these was the H2S radar scanning system which provided bomber crews with a TV-like image of the ground below. The other was a system known as Window. The forerunner of modern chaff, Window was bundles of aluminum foil strips carried by each bomber, which, when released, would disrupt German radar. On the night of July 24, 740 RAF bombers descended on Hamburg. Led by H2S equipped Pathfinders, the planes struck their targets and returned home with a loss of only 12 aircraft. This raid was followed up the next day when 68 American B-17s struck Hamburgs U-boat pens and shipyards. The next day, another American attack destroyed the citys power plant. The high point of the operation came on the night of July 27, when 700 RAF bombers ignited a firestorm causing 150 mph winds and 1,800Â ° temperatures, leading even the asphalt to burst into flames. Strung out from the previous days bombing, and with the citys infrastructure demolished, German fire crews were unable to effectively combat the raging inferno. The majority of German casualties occurred as the result of the firestorm. While the night raids continued for another week until the operations conclusion on August 3, the American daytime bombings ceased after the first two days due to smoke from the previous nights bombings obscuring their targets. In addition to the civilian casualties, Operation Gomorrah destroyed over 16,000 apartment buildings and reduced ten square miles of the city to rubble. This tremendous damage, coupled with the relatively small loss of aircraft, led Allied commanders to consider Operation Gomorrah a success.

Monday, March 2, 2020

Comstock Law and Its Role in Birth Control History

Comstock Law and Its Role in Birth Control History Act for the Suppression of Trade in, and Circulation of, Obscene Literature and Articles for Immoral Use The Comstock Law, passed in the United States in 1873, was part of a campaign for legislating public morality in the United States. As its full title (above) implies, the Comstock Law was meant to stop the trade in obscene literature and immoral articles. In reality, the Comstock Law was targeted not only at obscenity and dirty books but at birth control devices and information on such devices, at abortion, and at information on sexuality and on sexually transmitted diseases. The Comstock Law was widely used to prosecute those who distributed information or devices for birth control. In 1938, in a case involving Margaret Sanger, Judge August Hand lifted the federal ban on birth control, effectively ending the use of the Comstock Law to target birth control information and devices.