Server Architecture Essay Example

Networking Client/Server Architecture Essay Example Networking Client/Server Architecture Paper Networking Client/Server Architecture Paper Networking Client/Server Architecture Introduction to 2-Tier Architecture 2-tier architecture is used to describe client/server systems where the client requests resources and the server responds directly to the request, using its own resources. This means that the server does not call on another application in order to provide part of the service. Introduction to 3-Tier Architecture In 3-tier architecture, there is an intermediary level, meaning the architecture is generally split up between: 1. A client, i. e. he computer, which requests the resources, equipped with a user interface (usually a web browser) for presentation purposes 2. The application server (also called middleware), whose task it is to provide the requested resources, but by calling on another server 3. The data server, which provides the application server with the data it requires | The widespread use of the term 3-tier architecture also denotes the following architectures: * Application sharing between a client , middleware and enterprise server * Application sharing between a client, application server and enterprise database server. Comparing both types of architecture 2-tier architecture is therefore a client-server architecture where the server is versatile, i. e. it is capable of directly responding to all of the clients resource requests. In 3-tier architecture however, the server-level applications are remote from one another, i. e. each server is specialised with a certain task (for example: web server/database server). 3-tier architecture provides: * A greater degree of flexibility Increased security, as security can be defined for each service, and at each level * Increased performance, as tasks are shared between servers Multi-Tiered Architecture In 3-tier architecture, each server (tier 2 and 3) performs a specialised task (a service). A server can therefore use services from other servers in order to provide its own service. As a result, 3-tier architecture is potentially an n -tiered architecture The Differences Between Thick ; Thin Client HardwareIn the world of client/server architecture, you need to determine if it will be the client or the server that handles the bulk of the workload. By client, we mean the application that runs on a personal computer or workstation and relies on a server to perform some operations. Thick or thin client architecture is actually quite similar. In both cases, you can consider it as being the client application running on a PC whose function is to send and receive data over the network to the server program. The server would normally communicate that information to the middle-tier software (the backend), which retrieves and stores that information from a database. While they share similarities, there are many differences between thick and thin clients. Thick and thin are the terms used to refer to the hardware (e. g. , how a PC communicates with the server), but the terms are also used to describe applications. While this article deals specifically with hardware issues, be sure to check back as we will continue our Thick and Thin discussion as related to applications. Thin ClientsA thin client is designed to be especially small so that the bulk of the data processing occurs on the server. Although the term thin client often refers to software, it is increasingly used for the computers, such as network computers and Net PCs, that are designed to serve as the clients for client/server architectures. A thin client is a network computer without a hard disk drive. They act as a simple terminal to the server and require constant communication with the server as well. | Thin clients provide a desktop experience in environments where the end user has a well-defined and regular number of tasks for which the system is used. Thin clients can be found in medical offices, airline ticketing, schools, governments, manufacturing plants and even call centers. Along with being easy to install, thin clients also offer a lower total cost of ownership over thick clients. Thick Clients In contrast, a thick client (also called a fat client) is one that will perform the bulk of the processing   in client/server applications. With thick clients, there is no need for continuous server communications as it is mainly communicating archival storage information to the server. As in he case of a thin client, the term is often used to refer to software, but again is also used to describe the networked computer itself. If your applications require multimedia components or that are bandwidth intensive, youll also want to consider going with thick clients. One of the biggest advantages of thick clients rests in the nature of some operating systems and software being unable to run on thin clients. Thick clients can handle thes e as it has its own resources. Thick vs. Thin A Quick Comparison Thin Clients| Thick Clients| Easy to deploy as they require no extra or specialized software installation Needs to validate with the server after data capture- If the server goes down, data collection is halted as the client needs constant communication with the server- Cannot be interfaced with other equipment (in plants or factory settings for example)- Clients run only and exactly as specified by the server- More downtime-Portability in that all applications are on the server so any workstation can access- Opportunity to use older, outdated PCs as clients- Reduced security threat| Data verified by client not server (immediate validation)- Robust technology provides better uptime Only needs intermittent communication with server More expensive to deploy and more work for IT to deploy- Require more resources but less servers- Can store local files and applications- Reduced server demands- Increased security issues   | Key Terms To Understanding Storage Servers: client The client part of a client-server architecture. Typically, a client is an application that runs on a personal computer or workstation and relies on a server to perform some operations. server A computer or device on a network that manages network resources. Servers are often dedicated, meaning that they perform no other tasks besides their server tasks. client/server architecture A network architecture in which each computer or process on the network is either a client or a server. |

Maggie the Girl of the Streets and innocence essays

Maggie the Girl of the Streets and innocence essays "Maggie, A Girl of the Streets" by Stephen Crane is an illustration of the morals and views of innocence in the early 1900's. The story chases the young and innocent Maggie into a life of sinfulness. The opinions of all of those around her change during her growth, and express the ideals of life during that time. Innocence is defined as freedom from sin, wrong, or guilt. (Barnhart 413) Many people value innocence as a very respectable virtue to have. The poeple around Maggie in this story have an opinion close to this. Maggie begins her life with little sin, but as she grows older, this ideal begins to weaken. Maggie's relationship with Pete is esentially what begins and pushes her along this path to indecency. Pete is her brother's friend, whom she has liked for many years. He carries with him an air of superiority, and Maggie looks up to his higher social status. Maggie is incredibly happy when Pete finally asks her out. However, at the end of the date, when he asks for a kiss, she refuses. (Crane 25) This refusal shows Maggie's naive nature and how, at this point she is still maintaining her innocence. From here on, however, it is all downhill for Maggie and her innocence. Her change in attitude and demeanor, caused by Pete, affects many people. The way Pete took her out and introduced her to a life of drinking and going out every night, a life of wealthier society than the people around her had, bothered many people. Her brother becomes jealous and shows up at Pete's pub and starts to fight. (Crane 39-41) jimmie, Maggie's brother, believes that Pete has betrayed their friendship and that Pete has ruined his sister. After she met Pete, Maggie also pulled away from her family and stopped living with them. She would very rarely come home. Maggie's mother is also affected by Maggie's changes such as these. Although a drunkard before, Maggie's mother begins to blame her drunkenness and the tr...

Domestic Terrorism Paper Term Example | Topics and Well Written Essays - 2000 words

Domestic Terrorism - Term Paper Example As a result, the disintegration of political, economic, and social functions occurs (McCann, 2006). Domestic terrorism continues to plague the USA because of the difference in perspectives between individuals partaking in acts termed as acts of terrorism and victims of these acts. Those involved in such acts use their ideologies as a basis of justification; however misguided their actions might be, they do not consider themselves terrorists. On the contrary, they view themselves as heroes ascribing heroic qualities to their actions. Despite this disagreement, all parties agree on the forms terrorist acts take, which include systematic or nonsystematic warfare covertly displayed. However, in some extreme cases, the display of warfare occurs openly, for example, in the cases of suicide bombing. Moreover, people also agree on the role played by political, religious, and, social ideologies as being the driving force behind acts of terrorism. This essay analyzes the historical context of domestic terrorism in America; compares and contrasts domestic and international terrorism and addresses the psychological impact of domestic terrorism (McCann, 2006). 2. Domestic Terrorism in America. ... stitution of the Declaration of Independence in 1776, the official introduction of the American dream happened and with this came the introduction of hope among citizens. However, as time elapsed, many begun to distrust the core values outlined by the Declaration of Independence (Don, 2010). This happened when individuals noted the disparities in equality compounded by the differences in race, religion, and, political ideologies among other factors. Increasing levels of distrust resulted in acts of domestic terrorism. People resorted to inhumane warfare tactics with the aim of raising awareness on their frustrations. The acts of terror can be classified according to the period in which they occurred. These include; post civil war, 1920s communist and anarchist violence, and, domestic terrorism (1960s & 1970s). Post-civil war acts of terrorism begun as early as 1622 when Native Americans waged war on the Jamestown colony, where they ended up killing 30% of the population. The Powhatan Native Americans rebelled because of the encroachment and forceful eviction of their population by White settlers. Their actions served to highlight their displeasure with the White settlers who showed little regard for the ancestral occupants of the land. However, the Ku Klux Klan (KKK) formed in 1967, represented the first officially recognized terrorist organization in the USA. Led by former Confederate Nathan Bedford, the KKK initially sought to represent social issues, however, their goals got misdirected in 1868, whereby, its followers turned to violence. The KKK represented white supremacist ideologies, which looked down upon Black Americans. The 1920s saw the communists, and anarchist acts of terrorism spread through the USA. The USA’s ideologies are individualistic in nature,

Law 4 Assignment Example | Topics and Well Written Essays - 500 words

Law 4 - Assignment Example It governs how a business is run, and if any violations are made, the owners or directors of the business is deemed legally liable. There are legal punishments in the form of corporate revocations and fines for violations (Halbert & Ingulli, 1990). The two terms â€Å"business law† and â€Å"ethics† are not similar though they are linked to the business environment. The public scrutinizes a business that is not running ethically, and there is a normally tough analysis of the legitimacy of their actions. Halbert and Ingulli (1990) state that although business laws ensure that a company is run in a legal manner, the ethics of a business regularly establish whether the business is surpassing the limits set upon by law if not breaking them unintentionally. For example if a business that deals in the mining of fluorine dumps its wastes in the rivers the action may be legal. However, the action may be unethical if the activity is done wrongly. According to Armentano (1996), antitrust and monopoly are other business terms that go hand in hand with each other. Antitrust law is a set of rules that prohibit the unfair business practices. Monopoly is the business practice that involves a few businesses being the suppliers of products in a huge market. The antitrust laws are set up to promote competition in the market. Certain business practices are deemed illegal if they impair business practices and affect the consumers in any way. Armentano (1996) affirmed that, illegal practices are viewed to be unethical in the business environment as they lead to market and business failure. Practices that lead to unethical activities in the business world are considered illegal according to the antitrust law. Monopoly is the act of a single entity controlling the market price of a certain commodity (Armentano, 1996). Monopoly is brought about by lack of competition in the market; one or few companies dominate the business industry. The f ew

Employer Compliance with the Patriot Act Essay Example for Free

Employer Compliance with the Patriot Act Essay Section 215 of the Patriot Act is an amendment to the Foreign Intelligence Surveillance Act of 1978 which states the federal government can request, and obtain, any â€Å"tangible things (including books, records, papers, documents, and other items) for an investigation to protect against international terrorism or clandestine intelligence activities† (Aftab, 2003). This information may include E-mail messages, telecommunications, search engine audits, etc. Privacy laws state that disclosure of personally identifiable information can only be requested via a court order or subpoena. A company may face legal liability if it voluntarily complies with a government request for personal information. It is often a direct violation of posted privacy policies in an employee manual. This is considered a contract between the employer and employee and if it is breached, the company may be sued, particularly if there is no explanation regarding the process to be followed in the instance of receiving a court order or warrant. Compliance with the Patriot Act could violate non-disclosure and confidentiality agreements, as well. References Aftab, Parry (October 20, 2003). â€Å"The Privacy Lawyer: Patriotism, Compliance and Confidentiality†. Information Week. Retrieved February 29, 2008 from the Information Week Website: http://www.informationweek.com/showArticle.jhtml?articleID=15306232.

Congress And The Change In Term Limits Essay -- Politics Political

Congress and The Change in Term Limits In 1994, for the first time in 40 years, Congress was drastically changed. The Democratic majority was uprooted and new, lively, freshmen were instated with a job to undertake. As part of the Republican=s AContract with America,@ these new Republicans had to revise the current Congressional term limit status. In undertaking this task, these men and women ran into a seemingly stone road-block. This roadblock consisted of long-term, carreerists who were unwilling to change. The problem was not that there were no Congressmen who were committed to real change elected in 1994 because there were, but Congress was highly dominated by long-term careerists in both parties who seemed to have more loyalty to the system than to their constituents. As Thomas Jefferson put it, "Whenever a man has cast a longing eye on offices, a rottenness begins in his conduct." (Oxford dictionary of quotations, p.272) Over time, career legislators are more likely to promote the interest of the establishment of which they are part than that of the larger public. This fact is not surprising. If most of a persons time is spent meeting with lobbyists, constituents, and bureaucrats, that person may actually come to believe what these influential people are saying. This is why new blood needs to enter Congress more frequently, in order to avoid the highly influenced Congress that is filled with old people with old ideals. Needless to say the once optimistic freshmen were unsuccessful in their task, and it=s plain to see why. Until that changes, Congress is not going to change. Congressmen need to get back to basics and realize that they are in office to serve their people, and not themselves. What would change Congress is term limits. By the middle of last year nearly half of the states had restricted, almost all of them by popular vote, the number of terms that their members of Congress could serve. But then the Supreme Court intervened. In U.S. Term Limits, Inc., et al. v. Thornton et al., a narrow five-to-four majority voided these restrictions, stating that "allowing individual States to craft their own qualifications for Congress would thus erode the structure envisioned by the Framers, a structure that was designed, in the words of the Preamble to our Constitution, to form a Amore perfect Union.@ (US Law Week, 1995) Congress, na... ..., Edward H.(2), "Six and Twelve: The Case for Serious Term Limits," National Civic Review, 1991. P. 251. Jefferson, Thomas. "Letter to Tench Coxe" 1799, The Oxford Dictionary of Quotations, 3d ed. New York: Oxford University Press, 1979, p. 272. McLaughlin, Fabrizio, Memorandum to "all interested parties," February 6, 1996, p. 1. (www.poilticalscience/pub/quotes.com) Moore, Stephen and Steelman, Aaron. "An Antidote to Federal Red Ink: Term Limits," Cato Institute Briefing Paper no. 21, November 3, 1994, p. 21. (Http://www.cato.org) Payne, James, AThe Culture of Spending: Why Congress Lives beyond Our Means@ University Press, 1991 p. 175-80. Smith, Bradley A. "Campaign Finance Regulation: Faulty Assumptions and Undemocratic Consequences," Cato Institute Policy Analysis no. 238, September 13, 1995, p. A15 (www.cato.org) U.S. Term Limits, Inc., et al. v. Thornton et al., 63 U.S. Law Week 4413, 4432. May 22, 1995. Wall Street Journal "Conflict in Congress," Wall Street Journal, April 22, 1996, p. A22.

A Welcome Address

Mr. Chairman, His Royal Highnesses, Ndi Nze an Ozo, Members of Igbo Council of Chiefs and Traditional Rulers, Distinguished Ladies and Gentlemen. Good evening. Eight years ago, a child was born in Dallas/Fortworth metroplex with just only seven members under the leadership of Mr. Chinedum Eguzouwa our first executive president. Today, that child has grown to the strength of 60 members and has the potential to grow more as the years go by. That child is UMUNNA BU IKE SOCIAL CLUB OF NIGERIA DALLAS/FORTWORTH. It is with great pleasure that I welcome you to this great occasion. I understand that there are many engagements in and around the city but you chose to be with us on this our 3rd induction party to witness why we are called UMUNNA BU IKE as young and dynamic club in Dallas. Tonight, we will induct ten families who were the lucky ones among many that applied. For those that were not admitted at the time of their interview, our reluctance in admitting you then did not mean that you were not qualified rather, it was based on the premises that our club does not engage on mass admission. Therefore, we encourage you to continue to reapply and on time so as to be among the very first ones to be interviewed. It is worth mentioning that to be considered for admission, you must be married and remain married because our club is built strongly on family values. To our new inductees, I welcome all of you to this great club. You will see for yourselves the difference between Umunna Bu Ike and any other club that may belong. You have made the best choice our your life in term of choosing a social club to belong. We will support and encourage you in our Umunna Bu Ike spirit. We encourage you to be steadfast in your marriage and uphold your family values that unites our club. You will be inducted tonight and we asked all your supporters to shower you with their love by spraying dollars on you as they merry with all of us tonight.. Our club is known to be pace setters in Dallas though too young. We have embarked on two Caribbean cruise, our last year picnic was second to none in comparison to any other club in Dallas, Our mother's event made history with our wives being picked up from their homes with limousine to the party site. This year, we are cruising to the eastern Caribbean to welcome our new inductees. Last year, under the chairmanship of Attorney Austin Uke, our youth wing is waxing so and strong some the highlights you will witness tonight. The club has also suffered some setbacks like many of the clubs in the city. Just three months ago, our club lost one of our pillars, a giant, man among men, a complete gentleman, a businessman, and a philanthropist in the person of late High Chief David Omenukor who slept with the lord on February 6, 2013. We ask that you continued to remember his family in your daily prayers and may I request your indulgence to ask for a moment of silence on his behalf. May we rise please. â€Å"May his soul rest in perfect peace†. Tonight, the chairman has assured me that all will be well and wants everyone to relax and watch the events as they unfold. We are prepared to entertain you with much to eat and drink, DJ Paulo is ready to with latest release to keep you on the dancing floor till dawn. Please drink moderately, and as you go home this morning, may Almighty God guide you safely. Thank you and remain blessed.

Autobiography Essay

As a child, I suffered hardships in many areas of my life, so much so, that even as a young child, I knew my life was considerably different than other children my age. While most children were carefree and out playing, I was inside cooking for myself, cleaning up the house, or watching after my mother. These were normal duties for me and had been for the past 2 years. My mother was in the prime of her addiction and nothing else in life seemed to matter except her drugs and her next high. I did what I had to do to take care of myself, my home, and my mom. I always believed she would wake up one day and realize what she was doing and make things right, end all the madness that my life had become. Norman Vincent Peale once said, â€Å"In every difficult situation is potential value. Believe this, then begin looking for it. † The potential value, the opportunity came looking for me. The Department of Family and Children Services showed up at my house when I was 9 years old. A new neighbor had called and complained that my mother was not fulfilling her duties as a mother and that they were worried about me. DFCS placed me with the Nelson Family, a grounded, stable, and devoutly religious foster family that promised to give me a better life. They were part of Winshape Homes, an organization of foster homes that was founded and supported by Truett Cathy, the founded of Chick-fil-a. Rosemary and Rob, my foster parents, were licensed to have up to 15 children at a time in the household, so I viewed them as experts at raising kids. They showered me with unconditional love and showed me what a â€Å"real† family was all about. Even with 12 other siblings in the household, they took care of our individual needs, loved us the way we needed to be loved, and taught us everything they could. I spent 9 wonderful years with them before I graduated high school and moved onto college. I was dealt a bad hand, so to say, as a child, but I wouldnt change anything in my past. Everything I went through made me stronger, helped me to appreciate what I have, and has taught me to not take things for granted. My mother was never there for me but I am an awesome mother to my children because of her. I am thankful for the family I have now and I am grateful that I have lessons and wisdom to teach my kids. There is always a light at the end of the tunnel, but you have to make it through the tunnel before you see the light.

Illegal immigration essays

Illegal immigration essays The problems created by waves of illegal immigrants leaving Mexico for the United States are very real. Every succeeding year sees an increase in the amount of those caught while trying to cross. One must ask why does such a wealthy developing country, with mineral resources and oil reserves, and a population of nearly 100 million people and a rich culture dating back to the 1500s, need to have economic and social difficulties that force such a large exodus every year? And why does the established government of Mexico seem incapable of solving this issue? Border agents called Federal Prevention Police have proved inadequate in stopping the flow of Mexicans going north. The 700 lawmen posted along the border have done little to break up the polleros or border-traffickers. The United States has thousands of Border Patrol agents stretched along the entire U.S.-Mexican border and Mexican border towns have extra police stationed at strategic points to curb the flow. But many people making the crossing die in the attempt; mostly due to exposure but some are outright murdered. Vigilante gangs have formed in many southern states hunting down illegal Mexicans, and local Militia groups have also contributed to the violence done to those apprehended entering the U.S. Those caught by the police agencies are lucky indeed. However, more than 320,00 make it across by eluding the authorities on both sides of the border every year. Many of these unfortunates meet a deadly end. Last year 356 died trying to enter illegally. The perpetrators are rarely caught or punished. (Immigration-Mexico P.1,2) The people coming across illegally do not do so for free. An illegal crossing comes at a price. And many smuggling rings operate on both sides of the border. The illegals have paid money either to a pollero or to the local police or both. Currently the price to cross ranges from $1,500 to $3,000 for a ride into the U.S. Many ...

Definition of Algorithm in Mathematics

Definition of Algorithm in Mathematics An algorithm in mathematics is a procedure, a description of a set of steps that can be used to solve a mathematical computation: but they are much more common than that today. Algorithms are used in many branches of science (and everyday life for that matter), but perhaps the most common example is that step-by-step procedure used in long division. The process of resolving a problem in such as what is 73 divided by 3 could be described by the following algorithm: How many times does 3 go into 7?The answer is 2How many are left over? 1Put the 1(ten) in front of the 3.How many times does 3 go into 13?The answer is 4 with a remainder of one.And of course, the answer is 24 with a remainder of 1. The step by step procedure described above is called a long division algorithm. Why Algorithms? While the description above might sound a bit detailed and fussy, algorithms are all about finding efficient ways to do the math. As the anonymous mathematician says, Mathematicians are lazy so they are always looking for shortcuts. Algorithms are for finding those shortcuts. A baseline algorithm for multiplication, for example, might be simply adding the same number over and over again. So, 3,546 times 5 could be described in four steps: How much is 3546 plus 3546? 7092How much is 7092 plus 3546? 10638How much is 10638 plus 3546? 14184How much is 14184 plus 3546? 17730 Five times 3,546 is 17,730. But 3,546 multiplied by 654 would take 653 steps. Who wants to keep adding a number over and over again? There are a set of multiplication algorithms for that; the one you choose would depend on how large your number is. An algorithm is usually the most efficient (not always) way to do the math. Common Algebraic Examples FOIL (First, Outside, Inside, Last) is an algorithm used in algebra that is used in multiplying polynomials: the student remembers to solve a polynomial expression in the correct order: To resolve (4x 6)(x 2), the FOIL algorithm would be: Multiply the first terms in the parenthesis (4x times x 4x2)Multiply the two terms on the outside (4x times 2 8x)Multiply the inside terms (6 times x 6x)Multiply the last terms (6 times 2 12)Add all the results together to get 4x2 14x 12) BEDMAS (Brackets, Exponents, Division, Multiplication, Addition and Subtraction.) is another useful set of steps and is also considered a formula. The BEDMAS method refers to a way to order a set of mathematical operations. Teaching Algorithms Algorithms have an important place in any mathematics curriculum. Age-old strategies involve rote memorization of ancient algorithms; but modern teachers have also begun to develop curriculum over the years to effectively teach the idea of algorithms, that there are multiple ways of resolving complex issues by breaking them into a set of procedural steps. Allowing a child to creatively invent ways of resolving problems is known as developing algorithmic thinking. When teachers watch students do their math, a great question to pose to them is Can you think of a shorter way to do that? Allowing children to create their own methods to resolve issues stretches their thinking and analytical skills. Outside of Math Learning how to operationalize procedures to make them more efficient is an important skill in many fields of endeavor. Computer science continually improves upon arithmetic and algebraic equations to make computers run more efficiently; but so do chefs, who continually improve their processes to make the best recipe for making a lentil soup or a pecan pie. Other examples include online dating, where the user fills out a form about his or her preferences and characteristics, and an algorithm uses those choices to pick a perfect potential mate. Computer video games use algorithms to tell a story: the user makes a decision, and the computer bases the next steps on that decision. GPS systems use algorithms to balance readings from several satellites to identify your exact location and the best route for your SUV. Google uses an algorithm based on your searches to push appropriate advertising in your direction. Some writers today are even calling the 21st century the Age of Algorithms. They are today a way to cope with the massive amounts of data we are generating daily. Sources and Further Reading Curcio, Frances R., and Sydney L. Schwartz. There Are No Algorithms for Teaching Algorithms. Teaching Children Mathematics 5.1 (1998): 26-30. Print.Morley, Arthur. Teaching and Learning Algorithms. For the Learning of Mathematics 2.2 (1981): 50-51. Print.Rainie, Lee, and Janna Anderson. Code-Dependent: Pros and Cons of the Algorithm Age. Internet and Technology. Pew Research Center 2017. Web. Accessed January 27, 2018.

Social Imperialism Essay Example | Topics and Well Written Essays - 500 words

Social Imperialism - Essay Example The introduction of social imperialism was formerly understood in the late nineteenth century when socialists and the lower-class movement became partners in imperialism. Its foundation has been related to the misery of the 1870s and early 1880s and efforts by regimes to recover economic losses as simultaneously exasperating labor agitation and socialist. Advocates of imperialism like Joseph Chamberlain and Jules Ferry; justified it by reasoning that the fruits of the kingdom would financially support social reform, give solution for the stagnation and unsteadiness of mid-nineteenth-century European economies and improve the dilemma of the poor—â€Å"the cry of the business population,'† ‘n’, Ferry's words--by having the funds for steady employment making goods for confined colonial markets. Hobson demystified such points of view: overseas investment whether in official colonies or informal areas of influence. He disputed exhausted capital from European-dom estic financial system. More contemptuous politicians such as Bismarck merely appealed to regal â€Å"crisis ideology,† using abroad military adventures and a focal point on outside enemies to distract attention from the deficiencies of economic arrangements and domestic politics. Benefitting the pursuit of kingdom enabled the German country to put off the democratization of political supremacy.Perhaps since, unlike Britain, France was in short of a substantial informal kingdom in the mid-nineteenth century.

History of Theatrical Lighting Essay Example | Topics and Well Written Essays - 2000 words

History of Theatrical Lighting - Essay Example The history of lighting in theatre is by nature a map to our own imaginations. In general, there are two kinds of illumination for the theatre, General Composition Illumination, and Selective Illumination. General Composition Illumination is used to produce a ‘wash’ of light across space, with little or no shadows. It is diffuse and undifferentiated. Selective Illumination is the creation of shafts or pinpoints of light that can be directed or fixed on certain areas of the stage in order to highlight a specific person, prop or scene. This draws the audience's attention to that area. Theatrical lighting has taken these two general categories and over the centuries learned to manipulate their intensity and colour for a myriad of effects and the creation of a more dynamic stage element. However, for the purposes of this analysis attention will be given to that lighting which is of a man-made origin. This of course begins with the humble candle. Attributed to invention circa 400 AD, the candle was at first relegated to religious ceremonies. As better materials were developed and the brightness and portability of the candle increased, it began to be used more generally. But it wasn't until the late fifteen hundreds that there are records of candles being used in theatres in Italy. Their popularity spread over Europe and to England by the early sixteen hundreds. Candles became the most significant light source for theatre productions. In the beginning candlelight was used to illuminate the members of the audience as well as the production and its actors. Candles were usually set in chandeliers over the audience and the audience section was under constant illumination during the performance while the stage would have varying degrees of light. Stagehands would snuff out and light candles according to the stage directions and there were also mechanical contrivances, different full chandeliers and partial branches were also used: Some of the branches could b e lowered by wires and pulleys so that the candles could be lit, snuffed, and extinguished. Lines, ropes, and pulleys are frequently mentioned in the accounts [of performances], but there are only a few explicit references to the raising and lowering of lights. Candles were also used as footlights and ladders in the wings to add side illumination. Then in the sixteenth century Sebastiano Serilio created a technique that gave candles a whole new dimension. By the use of coloured liquids made from various sources like saffron (yellow), burgundy wine (red) and so on he was able to give candlelight colour. He utilized a polished barber’s basin to reflect candlelight through these bottled liquids to project on actors and scenery. In a sense this was the first attempt at selective illumination as well. However candlelight had many drawbacks, one of which is the intensity and the quality of the light produced. Many candles, up to and sometimes exceeding thirty or more per several ch andeliers were necessary to have sufficient illumination for the stage or audience. Intensity is an important concern as relates to human vision. Detail can be lost if there is not enough light to discern them.