Radiohead - Kid A free essay sample

It was called the weirdest number one album of theyear by Rolling Stone magazine, has been named the best album of the yearby many major music publications and was nominated for four Grammy Awards (andwon for Best Alternative Music Performance), all without a released single orvideo. It is incredible that an album can receive all that recognition todaywithout MTV or radio coverage, which indicates the strength of Radioheads fanbase. Radioheads fourth LP, Kid A, entered the chartsworldwide at number one. This album is experimental for Radiohead, as it reliesmore on technology than their previous three albums do. It highlights theinnovative style of the extremely talented Johnny Greenwood, who plays manyinstruments. One of the negatives of this album is that Thom Yorkes incrediblevoice is not heard enough. But, like earlier albums, it includes slower songs,such as How To Disappear Completely and Motion PictureSoundtrack, as well as more upbeat ones like Optimistic andIdioteque. We will write a custom essay sample on Radiohead Kid A or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The band even includes a horn section in TheNational Anthem. I would agree that this is one of the best albumsof the year, but I cannot say it is Radioheads best. Although it is great, thisEnglish band has produced better.

Free Essays on The Discovery of What It Means to Be an American

Truth In Distance In his essay, â€Å"The Discovery of What It Means to Be an American†, James Baldwin writes about how he personally came about discovering his true identity. One of the first things he says is, â€Å"I left America because I doubted my ability to survive the fury of the color problem here. I wanted to prevent myself from becoming†¦ merely a negro writer. I wanted to find in what way the specialness of my experience could be made to connect me with other people instead of dividing me from them† (Baldwin 46). Baldwin thinks he hates America. I think that he is instead blinded by the constant discrimination he faced growing up in 1950’s New York. During all those years he just listened, and he was never taught how to deal with it all. When he realizes that putting distance between himself and the country he hates is a good idea, then he has started the road to recovery. At this point he is about to undergo a big psychological change, much like I’ve been doing during these past six months. I think that this change I have made, while a good distance away from home, is similar to the one Baldwin experienced before discovering his identity. Baldwin couldn’t take the growing racial tensions in 1950’s America. â€Å"I was as isolated from negroes as I was from whites, which is what happens when a negro begins, at bottom, to believe what white people say about him† (46). He left for France in hopes of finding inspiration in a less discriminating place. I think that if he had remained in America, the country that he thought he hated, then it would destroy him before realized the deeper attachment he had to his country. I think there is an important lesson right here: You’ve got to live for the moment, otherwise you’ll never know what big opportunities you could miss. Baldwin says, â€Å"I found my experience was shared by every American writer I knew in Paris. Like me they had been divorced from the... Free Essays on The Discovery of What It Means to Be an American Free Essays on The Discovery of What It Means to Be an American Truth In Distance In his essay, â€Å"The Discovery of What It Means to Be an American†, James Baldwin writes about how he personally came about discovering his true identity. One of the first things he says is, â€Å"I left America because I doubted my ability to survive the fury of the color problem here. I wanted to prevent myself from becoming†¦ merely a negro writer. I wanted to find in what way the specialness of my experience could be made to connect me with other people instead of dividing me from them† (Baldwin 46). Baldwin thinks he hates America. I think that he is instead blinded by the constant discrimination he faced growing up in 1950’s New York. During all those years he just listened, and he was never taught how to deal with it all. When he realizes that putting distance between himself and the country he hates is a good idea, then he has started the road to recovery. At this point he is about to undergo a big psychological change, much like I’ve been doing during these past six months. I think that this change I have made, while a good distance away from home, is similar to the one Baldwin experienced before discovering his identity. Baldwin couldn’t take the growing racial tensions in 1950’s America. â€Å"I was as isolated from negroes as I was from whites, which is what happens when a negro begins, at bottom, to believe what white people say about him† (46). He left for France in hopes of finding inspiration in a less discriminating place. I think that if he had remained in America, the country that he thought he hated, then it would destroy him before realized the deeper attachment he had to his country. I think there is an important lesson right here: You’ve got to live for the moment, otherwise you’ll never know what big opportunities you could miss. Baldwin says, â€Å"I found my experience was shared by every American writer I knew in Paris. Like me they had been divorced from the...

Political Science - American National Government Essay - 1

Political Science - American National Government - Essay Example Citizens should be ready to sacrifice their liberty for the sake of their security. I am, therefore, ready to sacrifice my right to live a free life, and enable the government put measures towards achieving a secure environment. My parents are dedicated democrats. They have been democrats for a long time. They have natured me, in a neutral political environment, giving me the chance to choose the political party that I advocate for, according to what I see in the party. My parents’ political opinions and attitudes did not and still do not affect my own political opinions. They brought me up to stand up for myself and support what I believe to be right. Though, we at many times disagree over our political opinions and stands they have never tried to change what I believe in, but they advise me when they see that I am backing the wrong idea. There are several people, who have influenced my political opinions. In the political arena, I see martin Luther king as a person, who stood for his political opinions and paid the price with his life. The legend advocated for the rights of the black community and successfully made his voice heard all over the globe. The current president of the United States is the other political icon that influences my political opinions. President Barrack Obama is a man who pushes for what he wants to achieve. His agenda is clearly to make America to be a fair and just country where citizens live in a peace and harmony. I watch television programs for two hours a day. This makes an average total of 14 hours a week. The television offers various insights to the world of politic. Different politicians express their opinions and political decisions using television as the medium of communication to the citizens. The television can affect or directs one’s political opinions. Though, I watch a lot of television news, documentaries and other entertainment channels,

Vietnam War Research Paper Example | Topics and Well Written Essays - 750 words - 1

Vietnam War - Research Paper Example in O’Brien’s â€Å"The Things They Carried†, but the author illustrates the base that Kiley used to be at in â€Å"The Sweetheart of Song Tra Bong†, which is comparable to the base at the Khe Sanh. O’Brien’s intention in the book is to portray on how the war changes people and even if we know the story, what happens inside their minds is still impossible to â€Å"truly† understand. O’Brien writes, â€Å"Fine with me. But you don’t know human nature. You don’t know Nam† (O’Brien 97). The author wants to emphasize that while people strive to understand each other, this attempt would only be limited to personal opinion, and there can be no truth in every individual understanding. O’Brien adds, â€Å"He couldn’t pin it down; her body seemed foreign somehow – too stiff in places, too firm where the softness should be† (99). It appears that the author is trying to evaluate the re sponses of people in the war against his personal views on how people should really behave during a war scene. But as aforementioned, the Battle of the Khe Sanh is one of the most controversial wars in history. Why? The war shows evidence of the fabrication of the American national identity. There are many misrepresentations of facts, particularly in the socio-cultural and political dimensions of the war. In order to obtain control over the infiltration routes south of the Demilitarized Zone and near the Ho Chi Minh Trail, the former French outpost along Khe Sanh was walled and nearly 6 thousand Americans and South Vietnamese were designated in order to secure the base (Browne, â€Å"Battlefields of the Khe Sanh†). In the succeeding passages, the display of horrific scenes including more than 150,000 projectiles and more than 100,000 pounds of explosive ordinance were released on the encompassing hillsides of once silent village of Khe Sanh (Clarke 185). The lush foliage will never go back to the valley that surrounded Khe Sanh and the pristine beauty that it used to have can no

Analysis of Critical Thinking Skills Assignment Example | Topics and Well Written Essays - 500 words

Analysis of Critical Thinking Skills - Assignment Example Here the student only focused on the Christian perspective on the vaccination of their daughters. He does not compare this perspective to other perspectives. On the third critical thinking skill, I would grade the student as weak (0). He did not gather any additional evidence apart from the article. It appears that the student did not do further research on the subject or use his knowledge from other sources. On the fourth critical thinking skill, I would grade the student as partially developed (1). He only states the conclusion. The student does not offer any suggestions on how to improve the society’s current situation. On the first critical thinking skill, I would grade the student’s article as excellent (3). The student identifies both the problem at hand and the secondary problems that relate to it. The students also provide relevant solutions to the problem. Additionally, the student is well organized in how he discusses the issues raised. On the second critical thinking skill, I would grade the student as substantially developed (2). The student clearly identifies and compares different perspectives on the issue. He compares perspectives of different organizations, his gynecologist and from his own childhood experience. On the third critical thinking skill, I would grade the student as substantially developed (2). He analyzes the evidence from the article and compares it with evidences from other sources. He is not limited by the evidence provide in the article alone. He focusses on his childhood experience as well as his gynecologist’s medical perspective. On the fourth critical thinking skill, I would grade the student as excellent (3). The student puts his findings in the context of his community’s cultural understanding of the subject. He also provides relevant solutions on how to reduce HPV infections. This is through educating them about its vaccination. All the four critical thinking skills will be very

The Electrostatic Energy Harvesting Engineering Essay

The Electrostatic Energy Harvesting Engineering Essay this paper presents a general idea of the electrostatic energy harvesting devices. Their working principle, harvesting method and basic designs will be expounded. And another two new approaches, 2D energy harvester and non-resonant energy harvester with rolling mass will be shown. The 2D energy harvester can harvest energy in arbitrary directions in a plane. And non-resonant energy harvester with rolling mass shows its low frequency capability. It can harvest 0.5 Â µW at 10Hz. Further improvement of this design may applied to energy harvesting from human body motion. Introduction Generally, batteries are the most reliable power source for electronic devices. It is powerful, easy to use. However, it can only provide constant power for a limited period. After that, the batteries have to be changed. Therefore, for those devices that have large amount of number or in inaccessible position. Batteries are not suitable for them. Energy harvesting devices are one of the attractive options of these applications. Energy harvesters can harvest energy from different ambient sources such as solar, thermal and vibration. In these cases, solar is not a reliable source, temperature gradients are modest, vibration seems the more abundant, stable and predictable choices. Currently, three major methods apply to vibration energy harvesting, electromagnetic, electrostatic and piezoelectric mechanisms. Each technique has its own advantages. Lot of articles did research and provided good conclusion on them. [1-3] Electrostatic energy harvesting device has the lowest energy harvesting capabilities in these three mechanisms, but it has the most specific advantages. It facilitates CMOS integration [4]. That means it can realize self-power integrated circuits as an on-chip power source. It also environment protects. Unlike piezoelectric and electromagnetic counterparts that require exotic materials. Electrostatic devices are mainly made of silicon.[5] This paper will focus on the current electrostatic harvesting research. Its working principle and harvesting processes will be discussed in the first part. Some new approaches will also be presented. electrostatic harvesting Operating Principle The electrostatic harvesters harness the work done against the electrostatic force of a variable capacitor. In other words, the vibrations cause the gap distance or overlap area of a parallel plate capacitor to vary under constant charge or voltage condition. This causes the capacitance change of parallel plate capacitor and produces electrical energy. The fundamental definition is given by the formula below. C=Q/V (1) Where C is capacitance of variable capacitor in farads, Q is the charge on the plate in coulombs and V is the voltage on the plates in volts C=ÃŽ µ (A/d) (2) Where A is the overlap area of the plates in and d is the distance between the plates in m. This equation shows the capacitance is proportional to A and inverse proportional to d. (3) E is the work done in joules. If the charge Q is held constant, then V will vary as C changes because of their inverse proportional relationship. Then from, the relation between voltage and capacitor energy is squared rather than linear. As a result, the work done will increase as the C decrease. That provides the harvested energy. Similar thing happens when the voltage V is held constant and Q varies. [1] They are known as the voltage-constrained method and charge-constrained method. [6] In the recent applications, the charge-constrained method is more popular over the voltage-constrained method as the voltage-constrained method requires an extra charge reservoir to keep the voltage in a constant value, while the charge-constrained method only requires one. [4] For charge constrained system, as shown in Figure 1 the energy conversion cycle starts as the variable capacitance reaches it maximum Cmax. The charging process is represented by the path from point A to Point B in figure 1. At point B, the energy stored can be shown as, (4) From point B to point C, an external charge reservoir is connected in order to keep the charge constant. The capacitance is starting decreasing as the overlap area A decreases or the distance between the plates d increases. The voltage is inverse proportional to the capacitance which is why the voltage increases in this period. This period is the actual mechanical to electrical conversion period. The energy stored at point C is now, (5) The path from point C to point A is the discharging of the charge on the variable capacitor back into the charge reservoir The whole process forms a proper energy conversion cycle. And the amount of energy gain is, (6) Usually there is a parallel capacitor is connected parallel with the variable capacitor in order to limit the maximum voltage that might damage the system during the harvesting. Then the energy equation is becoming, (7) Figure 1. Charge-constrained energy conversion cycle. B. Steps of energy harvesting The vibration cycle in an electrostatic energy harvester has three steps, pre-charge, harvest and reset. Figure 2. Figure 2. vibration cycle of electrostatic harvester. In the system, the variable capacitor is pre-charged to the battery voltage, and then the capacitor is connected to the battery. The circuit has no current flow at first since the capacitor and battery have same voltage level. But with the separation of the capacitor plates or the decreases of overlap area, the voltage increases with the decrease of capacitance. Charge therefore flows into the batteries and energy is harvested. When the capacitance reaches minimum value, the energy left in the capacitor will be driven back to the batteries and ready for the next cycle. C. Basic Designs These three mechanisms in the figure 3 are the three basic design structures of the electrostatic harvesters, in-plane overlap converter, in-plane gap-closing converter and out-of-plane gap-closing converter. The in-plane overlap converter varies its capacitance by changing the overlap area between comb fingers; the in-plane gap-closing converter varies its capacitance by change the displacement between comb fingers and the out-of-plane gap closing converter varies its capacitance by change the gap between the centre proof mass and two electrode plates. The most of the current designs of electrostatic harvesters are based on these three basic designs. Figure 3. (a) in-plane overlap converter. (b) in-plane gap-closing converter. (c) out-of-plane gap closing converter. D. Comparison in these three designs Ye Mei Lim[8] did a study on the output energy for these three designs. Firstly the in-plane overlap and in-plane gap closing converters were compared. The Cmax for the one set of comb fingers were 0.122pF and the Cmin can be treat as zero since the application of silicon nitride dielectric coating which is a very thin layer of chemical (up to 0.1Â µm) that can electrically isolate the electrodes even the plates contacts with each other[4]. While using the same set of comb fingers, the Cmax were 0.149nF and Cmin were 0.122pF. By applying equation (7), the in-plane overlap converter harvests 1000 times less than in-plane gap closing converter. Then with the simulation of both in-plane gap closing converter and out-of-plane gap closing converter. The results were found out that the in-plane gap closing mechanism is approximately 1.8 times that of the out-of-plane gap closing mechanism for load volumes between 5 and 50. NEW APPRAOCHES A. 2D Electrostatic Harvester Most of the past electrostatic harvesters are only one degree of freedom. They can only harvest energy via one direction of motion. Y. Zhu fabricates a 2 degree of freedom electrostatic transducer for energy harvesting with resonance frequencies of 38520 Hz and 38725 Hz. It can scavenge energy in arbitrary directions in a plane with two resonance frequency peaks. Also an ultrasound-based method for powering the device is presented. Y. Zhus design includes a 2 degree of freedom motion mechanism. The seismic mass is coupled with both frames as shown in figure 3 with elastic flexures. This design makes the device be able to detect both movements in X and Y frames and also decouples the X and Y movements of the mass. Figure 4. Two degree of freedom motion mechanism to harvest any direction in-plane vibration energy Figure 5 shows the SEM image of the 2-DOF electrostatic transducer. And table I are the key parameters of this design. The width difference of X frame and Y frame gives the transducer two different resonance frequencies. The primary resonance frequency at 39238 Hz and second at 39266 Hz. That gives a 302 Hz of -10dB bandwidth. It is twice of the 1D resonator. This device can obtain 10mV through a 1M ohm resistive load and harvest 0.1 nW power. Since this transducer can be power by an ultrasonic generator of frequency close to its resonance frequency. Since the ultrasonic is relatively safer than other power sources. This design may be useful for functions in medical environment. Figure 5. SEM image of the 2-DOF electrostatic transducer. Table 1. key parameter of the 2-DOF energy harvester B. Non-Resonant electrostatic harvester with rolling mass M.E.Kiziroglous design [10-11] focuses on maximizing the proof mass. In this design, an external free rolling proof mass is introduced. The mechanical energy is proportional to the proof mass, bigger mass generates more energy. This design is a non-resonant device. This property gives it wider applications. Figure 6. (a) Device structure. (b) Equivalent circuit of the device The Device structure is shown in figure 6(a). Figure (b) is the equivalent circuit of the device. The stainless steel rod acts as the contact switches and comb finger. When the steel rod is aligned with one of the strip electrodes, it connects with a Cu input Contacts to pre-charge the rod. That generates an electrostatic force between the rod and the strip electrode. That pulls the rod away from the strip electrode and reduces the capacitance at constant charge. The rod then disconnects with the input contact and makes the contact with a discharge electrode. The energy will be transferred as a high voltage pulse. The test of the current prototype of this device reveals a capacitance ratio of 4 and demonstrates a voltage gain of 2.4. Later Kiziroglou provides an advanced design of that [12]. This time the glass substrate is form in a cylindrical shape. Figure 7 is fabrication and optical images of the device. The first prototype is characterised with plate size 1 x 10 mm and SiO2 dielectric thickness of 50 nm. A 10 mm-long, 2.5 mm-diameter steel rod was used. A minimum capacitance of 2 pF and a maximum of 9 pF are observed. The voltage gain is 3 corresponds to a priming voltage 30V. The power generation is 0.5Â µW when the rod oscillation frequency at 10 Hz. The biggest advantage of this device is the capability of low frequency. That makes the human body motion as a suitable motion sources for it. Figure 7. Fabrication and optical images conclusion The focus of this paper is to present the general idea current achievement of electrostatic energy harvesting. And it gives a related reference for the group project. For most of the electrostatic harvester designs, a relatively high resonant frequency comparing with human body motion is need. However, the low frequency capability of the non-resonant energy harvester with rolling mass shows the possibility of the application of this technology in the projects. Additionally, most of the current devices only have one degree of freedom. The 2D energy harvester design can harvest arbitrary directions motion in a plane, which sufficiently increases the power output of device. However, it needs a high frequency. That makes it not suitable for the requirement of the project.

Jays Treaty :: essays research papers

Jay's Treaty "If this country is preserved in tranquillity twenty years longer, it may bid defiance in a just cause to any power whatever; such in that time will be its popularity, wealth and resources," stated by George Washington in response to demonstrators over the Jay Treaty. 1 Washington's remark was regarding the public's uproar following the release of information on the status of the discord with Great Britain. The people had just been informed of the contents of the Jay Treaty which were: 1) Britain agreed to give up the fur posts in American territory, 2) Britain also agreed to submit to arbitration the questions of disputed boundaries, the damage done to American shipping, and the debts due to British merchants. Although the people did not like these terms, Washington supported them to prevent us from going to war. Washington made his first move by sending a delegate to England, and furthermore by standing up to congress to get this treaty ratified. He demonstrates again his great moral coura ge for the welfare of his country. Although Washington himself did not write the treaty he deserves all the credit for initiating it in the first place. The times had become rough with the British, and according to Hamilton the British were a vital part of our economy. He said " †¦the tax on imports furnished much of the money for paying off our foreign, domestic, and state debts." 2 Along with the British's impressment of American seamen and their role in our economy Washington knew something had to be done. Washington knew that the tension between America and England had to be thinned out so he decided to send over a special envoy. The individual chosen for the job was Chief Justice of the Supreme Court, John Jay. John Jay had much experience in this department because he was the former Secretary for Foreign Affairs under the old Confederation. His objective was to make peace between the two countries. He was under instructions to make no commitment in violation of the treaties with France. Fortunately, Washington came to terms to do this, otherwise our infant country may never have grown into what it is today. This indubitably turned out to be one of Washington's bolder moves towards assisting his country. Another powerful move was demonstrated by Washington as he persuaded the Senate to ratify the treaty. The Jay Treaty was signed on November 19th , 1794, but was not ratified by the Senate until seven months later. "President George Washington's signing of the Jay Treaty provoked unimaginable criticism of his

Floods in South Africa

| 2013| | MASEGO MOCHOARI2008027750 | [GEO 234 :FLOODING IN SOUTH AFRICA]| THIS ASSIGNMENT GIVES AN OVERVIEW OF FLOODING AND ITS IMPACTS ON SOUTH AFRICA,THE ASSIGNMENT GIVES A BRIEF FORCUS OF FLOODING IN THE PROVINCE OF KWAZULU-NATAL|TABLE OF CONTENT PAGE 1 INTRODUCTION 2 2 DEFINING FLOODING 2 3 WHAT IS LA NINA 2 4 IMPACT OF FLOODS 2-3 5 MEASURES PUT IN PLACE TO HANDLE FLOODING 3 6 HUMAN IMPACT ON FLOODING 3-4 7 CONCLUSION 4 8 REFERENCE LIST 5 9 1. 1 INTRODUCTION La Nina influenced flooding took place in South Africa on January 24 of 2011. Heavy rain caused the widespread flooding in South Africa. This heavy rainfall is common during La Nina summers in South Africa. rainfall for the month of January had been reported to be nearly 10 times the average in parts of the country. Other countries besides South Africa had also been hit by heavy rain and La Nina was blamed for the flooding across Australia and the Philippines.More than 100 people lost their lives in floods that took pl ace across South Africa. The majority of the deaths were in KwaZulu-Natal and damages were estimated at R300 million. By the end of January ,heavy rain had been widespread across the country and eight of South Africa's nine provinces were declared disaster areas by the South African government. This assignment takes a look at what flooding is all about,it explains what La Nina is and looks at the impact floods have. This assignment focuses on flooding in South Africa with particular focus on flooding in the province of KwaZulu-Natal. Sub-headings have been used for easy navigation of the assignment. 1. 2 DEFINING FLOODINGFlooding from a hydrological sense can be defined stricty as a rise,which is usually brief in the water level of a water body ,this water body can be a river,dam and accumulated rainwater in a failed drainage system. (national geographic) The term flood simply implies a progressive and abnormal increase in the elevation of surface level of a water body until it reac hes a maximum height,at this point the water level will slowly drop back to its normal level, at this point it is important to state that these actions that take place usually take place within a certain period of time,therefore floods are episodic events where water rises and then eventually drops back to its normal surface level.Another characteristic of flooding is that flooding may result in the overflowing of water onto areas which are not normally submerged in water. (national geographic) 1. 3 WHAT IS LA Nina La Nina conditions occur when Pacific trade winds blow stronger than usual, this pushes sun-warmed surface water further west and increases the upwelling of cold water in eastern regions. Together with the atmospheric effects of southern oscillation, cooler water brings drought to western South America and heavy rains to south Africa ,eastern Australia and Indonesia. (national geographic) 1. 4 IMPACT OF FLOODS South Africa is a producer of corn, soybeans, and wheat.Farmer s usually welcome wetter-than-normal conditions, However the heavy rains that took place were so harsh they damaged crops. In addition to the damaged crop,field harvesting was at a halt as the fields were saturated . (south African health review) Such conditions have a negative impact on south Africa’s economy,this is because as a result of the floods damaging crops a shortage would take place,this means that less exports of crop products took place,in addition to that crop product prices would also have to go up in attempt to cover the cost of damages that took place. In the opinion of this assignment,it seems that flooding as is a disaster that can be both natural or human action related,has the same effect on every class of people ,it oes not choose nor hit poor areas or rich areas only . floods are spontaneous and will affect everyone that happens to be in the region of the flood . 1. 5 MEASURES PUT IN PLACE TO HANDLE FLOODING When we come to the topic of handling floodin g we need to introduce the concept of disaster management. a disaster can be caused by human or nature,they are events that are sometimes unpredictable,it is therefore essential for governments to manage all disatsers that occure. for this reason,distaster management planning should be a key point of any government. Disaster management aims to reduce the occurrence of disasters and to reduce the impact of those that cannot be prevented . he government white paper and act on disaster management define the roles of local authorities as well as provincial and notional government in disaster management. (government Gazzet) In accordance with the white paper and act on disaster management,every municipality should have a disaster management plan as part of their integrated development plan. having plans is place helps reduce the damage potential of disasters and in some cases results in the prevention of a disaster. (disaster management act) Protection services departments ,which deal wi th traffic policing, fire brigades and law enforcement should always be on high alert when disasters strike,this implies that they should always be on stand-by. disaster management act) When disasters such as flooding occur and exceeds the capacity of a local authority;district ,provincial or national parties should be notified. this means that any situation that is too lanrge for a local authority to handle should be reported. by doing this ,doors become open for parties such as volunteer organisations such as the Red cross,St Johns and national Sea rescue to give help where needed. (disaster management act) In summary,disaster management activities ,include the co-ordination of disaster response agents,a compilation and exercising of plans and disaster management education and training. When all the above mentioned are put into action properly,it becomes an effective way to handle disasters such as flooding. 1. 6 HUMAN IMPACT ON FLOODINGAs stated earlier in this assignment,disaste rs do not only occur natural ,human impact or behaviour can also cause a disaster ,this assignment is of the opinion that the following points which focus on human activities and actions that can cause flooding are the main human reasons why floods can occur: * The diversion of all water to rivers through drainage systems can cause rivers to overflow. this is because water is transported at a faster rate through drainage systems than it would if the water flowed naturally. * Cities and towns are man-made,they have a lot of buildings ,tarred roads and concrete pavements. this limits the amount of water that can be soaked and absorbed into the ground. Humans cut down forests; as a result loose soils run into the river,this causes a rising of the river bed,when this happens the chances of flooding increases as the carrying capacity of the river is decreased. * Architects and urban planners tend to straighten rivers in an attempt to control flooding,However as the river no longer meande r, further down the stream water suddenly slows down and this causes flooding 1. 7 CONCLUSION in conclusion,it is clear that flooding is a serious disaster that can cause both economic and structural damage. flooding in the KwaZulu-Natal province left farmers with damaged crops and also took the lives of many south Africans.It is also evident that if disaster management plans are put in place,the effects of flooding can be decreased especially if proper planning is done in reference to human causes of flooding. This assignment ,with all the above information given thought,concludes that in the case of KwaZulu-Natal and human impact on flooding,floods could have been avoided or at the very least the impacts thereof could have been lessened. REFERENCE LIST Cape Metropolitan Council Public Safety Advisories. frequently asked questions on disaster management. South African health review,2000. Chapter 24-disaster management. [Online:27th March 2013] http://www. etu. org. a/toolbox/docs/g overnment/disaster. html Government Gazzet. vol 403 ,No 19676,15 January 1999,white paper on disaster management,Ministry for provincial affairs and constitutional development,January 1999. Act 156(1) of the constitution [Online: 27th March 2013] http:www. ndmc. gov. za/portals/0//webdocuments/guidelines/DM/1_2_3. htm Government Gazzet. vol 451,No 24252,15 January 2002,Disaster Management Act. Cape Town. Act 57 of the constitution [Online:27th March 2013] http:www. ndmc. gov. za/portals/0//webdocuments/guidelines/DM/1_2_3. htm National Georaphic. [Online:27th March 2013] http:/environment,nationalgeographic. com/environment/natural-disaster/floods-profile/

Preparing for the SAT How Many Hours is Enough

Preparing for the SAT How Many Hours is Enough SAT / ACT Prep Online Guides and Tips Students online considering preparing for the SAT generally all have one big question: how many hours should I study for the SAT? When does prepping for the SAT become a waste of time? The short answer is that every hour helps, and unless you've already studied for 100 hours or more, it's not a waste of time yet. Why do you think that is? Why Students Need to Spend More Time Studying for the SAT The answer from research, from experience, from teachers and college counselers is absolutely clear. It's the natural combination of two factors. The first is that the SAT is so important in your life. A 100 point increase on average doubles your chance of getting into any given college, and raises your lifetime salary by $44,000. For almost all students, the value of increasing your SAT score is immense. The second reason is because the SAT is so studiable. A recent report shows that as few as 10 hours of focused studying can improve your SAT score by dozens of points. Students in any old SAT prep course improve their score by over a hundred points easily. In fact, we ourselves are so confident in your ability to improve (and the quality of our product) that PrepScholar even guarantee 160+ points on our online SAT prep program. You do the math: a better college, and a lifetime salary increase of $44k just for a few dozen hours of studying and spending a few hundred dollars on a good program. It'll be the best investment of time and money you've made in your life! Surely There's a Limit to the Benefits of SAT Study, Though? Yes, there is a limit, but for most people, the limit is their own willpower, motivation, and free time. In another blog post, I give some tips for overcoming these limitations. But suffice it to say, for almost all students, further studying will help. In fact, as a rule of thumb you should not even consider the possibility that you are studying too much unless you've hit the 100 hour mark. Students looking for a low benchmark so they can wing the SAT won't find solace in the facts above, but they are what they are. The SAT is important, and studying at the margin helps, even when you've already studied a lot. How to Tell You've Studied Enough First, if your score is 1520 or above, you've studied enough, even if you don't get perfect. I'll go into it in another blog post, but long story short, the difference between 1520 and 1600 often is just sampling noise. Second, the following only applies if you've studied more than 100 hours. If you have not studied 100 hours, do not pass go, do not collect $200, do not use the reasons below as excuses to stop studying. Likely they don't apply because you haven't even found your best way of preparing for the SAT yet. Third, a sign that you've studied enough is that you score has not improved by more than 40 points in the last forty hours of studying. Fourth, you might have studied enough if you're trying many different ways of studying (improving vocab, doing real practice, taking an online course, etc) and still don't improve. Found this article useful? Get a lot more helpful with our Free SAT Ebook!

Find an Antipode on the Opposite Side of Earth

Find an Antipode on the Opposite Side of Earth An antipode is the point on the opposite side of the Earth from another point - the place youd end up if you were able to dig directly through the Earth. Unfortunately, if you try to dig to China from most places in the U.S., you would end up in the Indian Ocean as the Indian Ocean contains most of the antipodes for the United States. How to Find an Antipode When locating your antipode, recognize that youll be flipping hemispheres in two directions. If youre in the Northern Hemisphere then your antipode will be in the Southern Hemisphere. And, if youre in the Western Hemisphere then your antipode will be in the Eastern Hemisphere.   Here are some steps to manually compute an antipode.   Take the  latitude  of the place for which you want to find the antipode and convert it to the opposite hemisphere. Well use Memphis as an example. Memphis is located at approximately 35 ° North latitude. The antipode of Memphis will be at 35 ° South latitude.Take the  longitude  of the place for which you want to find the antipode and subtract the longitude from 180. Antipodes are always 180 ° of longitude away. Memphis is located at approximately 90 ° West longitude, so we take 180-9090. This new 90 ° we convert to degrees East (from the Western Hemisphere to the Eastern Hemisphere, from degrees west of Greenwich to degrees east of Greenwich) and we have our location of Memphis antipode - 35 °S 90 °E, which is in the Indian Ocean far to the west of Australia. Digging Through the Earth From China So where exactly are the antipodes of China? Well, lets compute the antipode of Beijing. Beijing is located at approximately 40 ° North and 117 ° East. So with step one above, we are looking for an antipode that is 40 ° South (converting from Northern Hemisphere to Southern Hemisphere). For step two we want to move from the Eastern Hemisphere to the Western Hemisphere and subtract 117 ° East from 180 and the result is 63 ° West. Therefore, the antipode of Beijing is located in South America, near Bahia Blanca, Argentina. Antipodes of Australia   How about Australia? Lets take an interestingly named place right in the middle of Australia - Oodnadatta, South Australia. It is the home of the highest recorded temperature on the continent. Its located near 27.5 ° South and 135.5 ° East. So were converting from Southern Hemisphere to Northern Hemisphere and Eastern Hemisphere to Western Hemisphere. From step one above we turn 27.5 ° South to 27.5 ° North and take 180-135.544.5 ° West. Therefore the antipode of Oodnadatta is located in the middle of the Atlantic Ocean. Tropical Antipode The antipode of  Honolulu, Hawaii, located in the middle of the Pacific Ocean is located in Africa. Honolulu is located near 21 ° North and 158 ° West. Thus the antipode of Honolulu is located at 21 ° South and (180-158) 22 ° East. That antipode of 158 ° West and 22 ° East is in the middle of Botswana. Both locations are within the tropics but Honolulu is located near the Tropic of Cancer while Botswana lies along the Tropic of Capricorn.   Polar Antipodes Finally, the antipode of the North Pole is the South Pole and vice-versa. Those antipodes are the easiest on the Earth to determine. Dont want to do the math yourself? Check out​ this  Antipodes Map.

Respiration and Diffusion Essay Example | Topics and Well Written Essays - 1000 words

Respiration and Diffusion - Essay Example The word equation is as follows: glucose   Ã‚   >   Ã‚   lactic acid (+ energy) A smaller amount of energy is liberated by anaerobic respiration compared to aerobic respiration. NB: Energy is indicated in brackets in each equation since it is not a chemical substance. Diffusion on the other hand is the movement of molecules of a particular substance from a region of reasonably high concentration to that of lesser concentration(wiki.answers.com ) The aspects that control the speed of diffusion consist of surface area, concentration gradient, and diffusion distance. Animals have developed to increase the diffusion speed across respiratory membranes by increase of the respiratory surface area, concentration gradient, or reducing the distance of diffusion. They are illustrated by Fick’s Law as follows: Fick’s Law of Diffusion: It states that: The speed of transmission of a gas through an area of tissue is proportional to the tissue area and the variation in gas partial pressure between the 2 sides and inversely proportional to the tissue thickness.(source) Volume of gas (per unit time)=Area/Thickness x Diffusion constant x (Partial Pressure 1 - Partial Pressure 2) dV/dt = A/T * D * (P1 - P2) Fick's Law of Diffusion looks at the rate of transfer of gases through tissues. For instance in respiration, the law governs the rate of transfer of Oxygen that comes from alveoli to the blood through the thin blood gas obstacle, and Carbon Dioxide in the reverse direction. (Karp, 2010). The outcome of this correlation is that the Carbon Dioxide will diffuse about 20 times more quickly compared to Oxygen through the tissue areas. This variation is as a result of the solubility of Carbon Dioxide being elevated and therefore raising the diffusion constant. The diffusion constant is relative to the solubility divided by the molecular weight square root. The Fick’s law equation can be practical to different localities and elements of a tissue. Diffusion of gas across thicker parts of tissue will reduce gas diffusion time contrasting to thinner tissue. In addition, bigger area influences the speed of diffusion, by presenting a raise in the volume of gas diffused (Sherwood, 2007). Respiratory system organs Respiration is attained through one’s mouth, nose, trachea, lungs and diaphragm. Oxygen gets into the respiratory system through the mouth and the nose. The oxygen then goes to the larynx and the trachea. In the chest opening, the trachea divides into two lesser tubes known as the bronchi. Every then splits again to form the bronchial tubes which go to the lungs where they split into several lesser tubes which attach to alveoli. The oxygen that is taken in pass through the alveoli then diffuses through the capillaries into the blood in the artery. Temporarily, the polluted blood from the veins liberates its carbon dioxide into the alveoli. Carbon dioxide takes the same course out of the lungs when one breathes out. A diaphragm assists in pumping carbon dioxide outside the lungs and draws oxygen into the lungs. As it relaxes and contracts, respiration occurs. It is by this means that one breathes in and out. Circulatory system The system includes the heart and the blood vessels and circulates blood all through the body. An individual’s body has approximately 5 liters of blood constantly circulating through the circulatory system.

Koreas High Context Culture Assignment Example | Topics and Well Written Essays - 1250 words

Koreas High Context Culture - Assignment Example The paper tells about countries that present with high context cultures particularly about Korea, wherein individuals connote extensive networks among groups, peers and family members. Studies concerning intercultural communication indicated that mostly Eastern countries, particularly Asian cultures, pose heavy direction in accordance with high-context data, an example would be the languages used in Asian countries that profuse subtlety. Apart from the language, another notable factor is the non-verbal communication prevalent among Asian cultures that are deemed indirect as opposed to those in Western cultures. Another factor that contributes to the high context nature of Korea is their predilection towards Confucianism, which promotes egalitarianism. In this regard, Koreans are more inclined to preserve harmony than defend a stance, in order to preserve the credibility of the other party. A study made by Korea UNESCO presented that in spite of the global exposure of Koreans, they ar e still dominated with a high context culture. Korean traditions are continuously upheld and the Confucian principles of harmony, preserving other's credibility and not sticking out are still widely employed within Korean Society. With that in mind, there are several critical considerations to take before an individual from a low-context culture goes to Korea and communicates with local Koreans. This is very important because culture differences are at large and communication misinterpreted due to the variance in practice. (Kramsch 2001; Korea UNESCO 2002). Korea’s High Context Culture High context cultures can be challenging to penetrate, especially external parties due to the fact that no cultural context information is internally available and it is not possible to immediately build close connections among individuals as their bonds are formed over a long period Korea UNESCO (2002) High Context implies that the bulk of information can either be present in physical context or the message, while some are present in the explicit part of the message that has been conveyed (Mead 1998). In essence, it is of utmost importance to identify the cultural origin of the person you are speaking with to avoid misunderstanding (Kent 2002). One important factor in communicating and understanding Koreans is to place value on "how" the message was delivered. The manner in which the message has been stated does not solely attribute to the voice tone and the non-verbal messages, but also on the spatial and