Geography Rivers Essay Example for Free

Geography Rivers Essay 1. The speed and volume of a river varies from place to place along a rivers course because of many reasons. In the upper course, the volume of water is low as there are few tributaries. In comparison, the volume of water in the middle course is higher as there are more tributaries supplying water to the main river channel. The volume of water in the lower course is the highest as the lower course has the most tributaries. However, many other factors will also affect the volume of water in the river. More permeable rocks will result in less surface runoff, thus a lower volume of water. Less permeable rocks will then have more surface runoff, thus a higher volume of water. Vegetation on land such as trees and plants also affects the volume of water, as vegetation intercepts rain. The upper course usually has more vegetation, while the lower courses have less vegetation intercepting precipitation. Sparse vegetation results in less water infiltrating the ground, thus there will be more surface runoff, resulting in a larger volume of water. The climate of the particular area will affect the volume of water in a river too. The volume of water varies for wet and dry seasons as the amount of rainfall changes. Generally, in hot and wet equatorial or tropical area, there is a higher volume of water as compared to dry areas such as deserts. Lastly, the size of the drainage basin will affect the volume of a river. The bigger the size of land area drained by the main river and its tributaries, the higher the volume of water as there is more collection of rainwater compared to a smaller drainage basin which has less surface area for rain to fall on. The speed of the river, is affected by the gradient of the river. In the upper course, the gradient of the river is steep, thus the water is fast-flowing. In the middle and lower courses, the gradient is gentler, thus the water flows more slowly. The roughness of the river channel also affects the speed of the water in a river. Generally, the upper course has a rougher river channel while the middle and lower courses have a smoother river channel. When the river bed is uneven and has a large number of obstacles such as rocks, boulders and plants, there is more friction, causing the water to flow more slowly. The wetted perimeter of the river affects the speed of the water too. The wetted perimeter of the water is the size of the river channel in contact with the water. The upper course has usually a smaller wetted perimeter while the middle course has a larger wetted perimeter. The lower course has the largest wetted perimeter. A larger wetted perimeter decreases the speed of the water due to the friction generated as with more of the river channel being in contact with the rivers water. 2.a) Transport process A is suspension. Suspension occurs when small particles such as silt or clay-sized particles are carried within the water by turbulent flow. Transport process B is traction, and occurs when large boulders or rocks rolled along the river bed. Transport process C is saltation, where small pebbles and stones are bounced or hopped along the river bed. b) Solution is not shown in the figure. Solution is a river transport process in which minerals are dissolved in the water and carried in solution. As the minerals are dissolved in the water and thus invisible to the naked eye, it then cannot be shown in the figure. 3.a) There are 4 main processes of river erosion, including hydraulic action, corrasion, attrition and solution. Hydraulic action is the removing and dislodging of rocks from the bed and banks of the river by the sheer force of the running water. Corrasion, or abrasion, is the grinding of rock fragments carried by the river against the bed and banks of the river. This action both widens and deepens the river channel. Attrition is the knocking of rock fragments in the water against one another. In the process, the rocks become smaller and rounder as the sharp edges are grounded. Through time, rocks become grain sized silt, clay and other sediments. Solution is the process by which river water reacts chemically with soluble minerals in the rocks and dissolves them. For example, when a river stream flows over an area of limestone, it erodes the limestone by reacting chemically with it and dissolves it.

Misuse of Police Powers Essay -- Police Misconduct, Abuse of Authority

Within our police system in America, there are gaps and loopholes that give leeway to police officials who either abuse the authority given to them or do not represent the ethical standards that they are expected to live up to. Because of the nature of police work, there is a potential for deterioration of these ethical and moral standards through deviance, misconduct, corruption, and favoritism. Although these standards are set in place, many police are not held accountable for their actions and can easily get by with the mistreatment of others. While not every police abuses his or her power, the increasingly large percentage that do present a problem that must be recognized by the public as well as those in charge of police departments throughout our country. Police officials are abusing their power and authority through three types of misconduct known as malfeasance, misfeasance, and nonfeasance and these types are being overlooked by management personnel who rarely intervene eve n though they know what is happening. Misconduct is wrong because it violates rights and cause people to be wrongly accused of crimes or be found not guilty and set free when they are still an endangerment to other people. The public needs to be educating on what is happening in the police system in hopes that someone will speak out to protect citizens from being violated by police officers. The article Police Integrity: Rankings of Scenarios on the Klockars Scale by â€Å"Management Cops,† conveys that the different scenarios for each definition and the nature of police work make this corruption difficult to specifically define (Vito 153). Since it so challenging to correctly define, the three broad categories of malfeasance, misfeasance, and nonfeasance ... ...e punishments. An article in the Criminal Justice Review states that â€Å"controlling police corruption is difficult, if not impossible (Vito 153).† This is because typically the only people who know that these crimes are going on are the other police officers within a department. Police officers generally fail to report their colleagues and therefore much of this deviance goes unnoticed. Works Cited O'Connor, T.R. "Police Deviance and Ethics." PoliceCrimes.com. 11 Nov. 2005. Web. 14 Feb. 2015. Vito, Gennaro F., Scott Wolfe, George E. Higgins, and William F. Walsh. "Police Integrity: Rankings Reprints of Scenarios on the Klockars Scale by â€Å"Management Cops†." EBSCO Publishing Service Selection Page. June 2011. Web. 16 Feb. 2015. Weitzer, Ronald, and Steven A. Tuch. "Race and Perceptions of Police Misconduct." JSTOR. Aug. 2004. Web. 19 Mar. 19 2015.

Dimensions and Theme in The Killers

On the eve of the grand economic crisis of the capitalistic world, the late 1920's is a turbulent period in the U. S. A. with violence and horror permeating the whole society underneath the surface of the temporary steadiness and prosperity. Among all the novels depicting the dark life then, The Killers is unanimously considered as the best for its superb technic and profound theme. The Killers offers a perfect example of a narrative that challenges and rewards the readers' perception of its structure. The structure of a Hemingway's story can usually be described, conventionally enough, with a set of scenes marked by a change in setting or by a change of characters. What is unconventional and so inscribes his fame as a modernist is that the scenes often are juxtaposed with little transition and less logic to effect or explain their sequence or rationale as a result of his prose style with its syntax linking sentences and simple causes without conjunction and subordination. This is not to say that the structures of the stories lack form or significant pattern, but they are coherent and connected in a sort of dimension which Hemingway said he learnt from cizanne's paintings. In The Killers, there are totally three main scenes: Henry's lunchroom, Hirsch's rooming house, and again Henry's lunchroom. The first scene opens with two strangers entering Henry's lunchroom, where George is waiting on Nick Adams at the counter. The strangers, Al and Max, try unsuccessfully to order from the diner menu, then settle for sandwiches, after which their small talk turns ugly. Al takes Sam the cook and Nick into the kitchen, gags and ties them up, and then he and Max reveal that they are waiting to kill the heavyweight prize fighter Ole Andreson when he comes to have dinner at six o' clock. At last, Ole Andreson does not arrive; the killers leave. In the second scene, Nick goes to Hirsch's rooming house to tell Ole about two men waiting to kill him and offers to tell the police; but Ole, lying on his bed and looking at the wall, says that he got in wrong; there is nothing to do and he is through running. In the third scene, Nick comes back to Henry's lunchroom and tells Sam and George his experience at Hirsch's rooming house. Sam won't listen to it and goes to the kitchen. The story ends as Nick wonders what Ole did, and George says; â€Å"Double-crossed somebody. That's what they kill them for. â€Å"I'm going to get out of this town,† Nick said. â€Å"Yes,† said George, â€Å"That's a good thing to do. † â€Å"I can't stand to think about him waiting in the room and knowing he is going to get it. It's too awful. † â€Å"Well,† said George, â€Å"you'd better not think about it. † In the first two scenes, the readers may get confused with the arrangement and disappointedly fail to wo rk out the theme, for despite all the impending violence and seemingly inevitable bloodshed, nothing happens: the killers do not kill and their victim still lies with his face to wall. The dimensions of the first two scenes seem to by default direct the readers' attention to the story's factual details: the two killers Al and Max are indistinguishable, dressed like twins or a â€Å"vaudeville team†; their sandwich orders are interchanged; they eat with their gloves on; they call George â€Å"bright boy† and suggests him going to see a movie; they get the lunchroom prepared for the killing; the nigger cook repeatedly complains and of George gives his careless remarks. However, no matter what image the readers have of the two dimensions, it will reflect the obvious symmetry between them: the action of the first scene is followed by the reaction of the second. And as the story moves on to the third dimension where the theme finally set in, the readers, with a reminiscent view, can figure out that all the details which seem irrelevant to the killing in the previous two dimensions, now, in re-perception, are closely knitted to serve the theme. The incident takes place when three men are in Henry's lunchroom: the cook Sam and the two waiters, George and Nick. Sam, from the very beginning, tries best to keep himself away from this killing: when Nick wants to go to inform Andreson, he advices Nick â€Å"to stay out of it†, â€Å"not to have anything to do with it at all. † Then Nick decides to go to Andreson in Hirsch's rooming house, he says: â€Å"Little boys always know what they want to do,† satirizing young men like Nick know nothing about possible danger in the unsafe society. Finally, Nick returns and gives his account of Ole Andreson's reaction, he won't even listen to it and shut himself in the kitchen. Having seen a lot of such violence of the society and got frightened by his own experience several minutes ago, Sam knows clearly the danger and darkness, and does not â€Å"want any more of that. † Thus he acts in a cowardly way to insure his own security. George also seems quite familiar with this sort of business: he becomes very suspicious of the two men when they mistake their own order and eat with their gloves on. As soon as the two killers mention Andreson, he knows their purpose of killing that boxer. Although he asks Nick to go to see Andreson, he does not care the whole thing much. When Nick asks him why the want to kill Andreson, he just make dismissive explanation â€Å"double-crossed somebody, that's what they kill them for. † For him, murdering is not a big event, since there are many â€Å"them† killed by â€Å"they† every day, he simply has already got used to it. Of the three men, Nick is the only one who shows great concern to the attempted killing. Innocent enough, he, in spite of Sam's warning, goes to inform the boxer. In Hirsch's rooming house, the boxer, although knowing himself in danger, lies on his bed helplessly and does not want to run. He tells Nick: â€Å"There ain't anything to do,† â€Å"I'm through with all that running around,† which gives Nick an even more terrible shock than that he is gagged and tied up by the two killers. So horrified Nick is, he decides to leave the town, â€Å"I can't stand to think about him waiting in the room and knowing he's going to get it. It ‘s too damned awful. † Thus, at this stage, the readers can see that the theme that Hemingway wants to express is not only to expose the violence and turbulence of society at that time, but in a more profound dimension, to reveal the shock and hurt of all these viciousness and wickedness to the innocent souls like Nick who will bear the image of that doomed boxer into his maturity. Therefore, although the title of the story is The Killers, the hero is actually the young man Nick, whose innocence in the setting of the cruelty of the killers, the cowardice of the cook, the indifference of George and the despair of Ole Andreson, refracts the instability and violence of the society at that disordered time. In The Killers, Hemingway, with his geometric design of the scenes, presents a story of simple plot but profound meaning, debunking the unsteadiness and turbulence of the apparently thriving society. Reading this story is just like viewing cizanne's landscape paintings: one has large room to perceive and appreciate its beauty and meaning in different dimensions.

Booker T. Washington The First Leader Of The Civil...

Booker T. Washington was the first leader of the civil rights’ movement. All African Americans looked to him for advice on how to overcome their current situation. However, as time moved on, W.E.B. DuBois became his opponent. A person would think that Washington and DuBois would have worked together for a common goal, but this was not the case. Booker T. Washington and W.E.B. DuBois both strived for equality and justice for the African American race. However, these two had very different ways to achieve this goal. While Booker T. Washington and W.E.B. DuBois appeared quite similar in terms of their titles as civil rights’ activists as well as professors, they differed in that they had very different backgrounds, which greatly affected their perspectives on education and racism. Booker T. Washington and W.E.B. DuBois came from very different backgrounds and as a result, they had very different thinking patterns. Booker T. Washington was born into slavery. It’s sur prising that Washington grew up to become a teacher because it was illegal for him to be able to read and write as a child. Before Washington became a teacher, he always had to put learning on the backburner and work in order to support his family. In order to get into college, Washington had to walk 500 miles and work as a janitor to be able to pay his tuition. Soon after he was admitted into the college, he received a scholarship sponsored by a white man. The sponsor was General Armstrong, a commander of aShow MoreRelatedB. Dubois And Booker T. Washington795 Words   |  4 Pagesfighting violence with violence or leaving the violence untouched? W.E.B. DuBois and Booker T. Washington were two African-American rights activists during the late 1800s and early 1900s. W.E.B. DuBois and Booker T. Washington had the same idea for the end result of equality for colored people. However, they had very different approaches to reach their desired results. Booker T. 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