Voltage Definition in Physics

Voltage Definition in Physics Voltage is a representation of the electric potential energy per unit charge. If a unit of electrical charge were placed in a location, the voltage indicates the potential energy of it at that point. In other words, it is a measurement of the energy contained within an electric field, or an electric circuit, at a given point. It is equal to the work that would have to be done per unit charge against the electric field to move the charge from one point to another. Voltage is a scalar quantity; it does not have direction. Ohms Law says voltage equals current times resistance. Units of Voltage The SI unit of voltage is the volt, such that 1 volt 1 joule/coulomb. It is represented by V. The volt is named after Italian physicist Alessandro Volta who invented a chemical battery. This means that one coulomb of charge will gain one joule of potential energy when it is moved between two locations where the electric potential difference is one volt. For a voltage of 12 between two locations, one coulomb of charge will gain 12 joules of potential energy. A six-volt battery has a potential for one coulomb of charge to gain six joules of potential energy between two locations. A nine-volt battery has a potential for one coulomb of charge to gain nine joules of potential energy. How Voltage Works A more concrete example of voltage from real life is a water tank with a hose extending from the bottom. Water in the tank represents stored charge. It takes work to fill the tank with water. This creates a store of water, as separating charge does in a battery. The more water in the tank, the more pressure there is and the water can exit through the hose with more energy. If there were less water in the tank, it would exit with less energy. This pressure potential is equivalent to voltage. The more water in the tank, the more pressure. The more charge stored in a battery, the more voltage. When you open the hose, the current of water then flows. The pressure in the tank determines how fast it flows out of the hose. Electrical current is measured in Amperes or Amps. The more volts you have, the more amps for the current, same as the more water pressure you have, the faster the water will flow out of the tank. However, the current is also affected by resistance. In the case of the hose, it is how wide the hose is. A wide hose allows more water to pass in less time, while a narrow hose resists the water flow. With an electrical current, there can also be resistance, measured in ohms. Ohms Law says voltage equals current times resistance. V I * R. If you have a 12-volt battery but your resistance is two ohms, your current will be six amps. If the resistance were one ohm, your current would be 12 amps.

Definition and Examples of Diachronic Linguistics

Definition and Examples of Diachronic Linguistics Diachronic linguistics is the study of a language through different periods in history. Diachronic linguistics is one of the two main temporal dimensions of language study identified by Swiss linguist Ferdinand de Saussure in his Course in General Linguistics (1916). The other is synchronic linguistics. The terms diachrony  and synchrony  refer, respectively, to an evolutionary phase of language and to a language state.  In reality, says  Thà ©ophile Obenga, diachronic and synchronic linguistics interlock (Genetic Linguistic Connections of Ancient Egypt and the Rest of Africa, 1996). Observations Diachronic literally means across-time, and it describes any work which maps the shifts and fractures and mutations of languages over the centuries. In gross outline, it is similar to evolutionary biology, which maps the shifts and transformations of rocks. Synchronic literally means with-time, though etymology is misleading here, since Saussures term describes an atemporal linguistics, linguistics which proceeds without time, which abstracts away from the effects of the ages and studies language at a given, frozen moment.(Randy Allen Harris, The Linguistic Wars. Oxford University Press, 1993) Diachronic Studies of Language vs. Synchronic Studies - Diachronic linguistics is  the historical study of language, whereas synchronic linguistics is the geographic study of language. Diachronic linguistics refers to the study of how a language evolves over a period of time. Tracing the development of English from the Old English period  to the twentieth century is a diachronic study. A synchronic study of language is a comparison of languages or dialects- various spoken differences of the same language- used within some defined spatial region and during the same period of time. Determining the regions of the United States in which people currently say pop rather than soda and idea rather than idear are examples of the types of inquiries pertinent to a synchronic study.(Colleen Elaine Donnelly,  Linguistics for Writers. State University of New York Press, 1994)-  Most of Saussures successors accepted the synchronic-diachronic distinction, which still survives robustly in twenty-first-century linguistics. In practice, what this means is that it is accounted a violation of principle or linguistic method to include in the same synchronic analysis evidence related to diachronically different states. So, for example, citing Shakespearean forms would be regarded as inadmissible in support of, say, an analysis of the grammar of Dickens. Saussure is particularly severe in his strictures upon linguists who conflate synchronic and diachronic facts.(Roy Harris, Linguists After Saussure. The Routledge Companion to Semiotics and Linguistics, ed. by Paul Cobley. Routledge, 2001) Diachronic Linguistics and Historical Linguistics   Ã¢â‚¬â€¹Language change is one of the subjects of historical linguistics, the subfield of linguistics that studies language in its historical aspects. Sometimes the term  diachronic linguistics is  used instead of historical linguistics, as a way of referring to the study of language (or languages) at various points in time and at various historical stages. (Adrian Akmajian, Richard A. Demer, Ann K. Farmer, and Robert M. Harnish,  Linguistics: An Introduction to Language and Communication, 5th ed. The MIT Press, 2001)     For many scholars who would describe their field as historical linguistics, one legitimate target of research involves a focus not on change(s) over time but on the synchronic grammatical systems of earlier language stages. This practice can be called (not unrevealingly) old-time synchrony, and it has made its mark in the form of numerous studies providing synchronic analyses of particular syntactic constructions, word-formation processes, (morpho)phonological alternations, and the like for individual earlier (pre-modern or at least early modern) stages of languages. . . . Gaining as much synchronic information as possible about an earlier stage of a language must surely be viewed as a necessary prerequisite for doing serious work on the diachronic development of a language . . .. Nonetheless, pursuing the synchrony of earlier language states solely for the sake of (synchronic) theory-building.., as worthy a goal as it may be, does not count as doing historical linguistics in the literally dia-chronic (through-time) sense that we wish to develop here. At least in a technical sense, then, diachronic linguistics and historical linguistics are not synonymous, because only the latter includes research on old-time synchrony for its own sake, without any focus on language change. (Richard D. Janda and Brian D. Joseph, On Language, Change, and Language Change. The Handbook of Historical Linguistics, ed. by B. D. Joseph and R. D. Janda. Blackwell, 2003)

Money Management - Portfolio of funds or ETF Essay

Money Management - Portfolio of funds or ETF - Essay Example Most of these investors turned to government bonds, certificates and private or corporate bonds from reputable firms (Madura, 2008, p.13). This trend led to the emergence of special funds which allowed small investors to pool funds and investment in a number of securities or stocks. These funds are managed by fund managers which became popular with huge companies like insurance firms and banks. However the costs of managing these funds were high and some investors looked for other options to invest. This led to the emergence of Exchange Traded Funds (ETFs), which allowed investors to put their money on investment funds to be traded on stock exchanges (Abner, 2010). ETF investment funds incorporate an array of assets such as stocks, commodities or bonds and trades at a price close to the net value of these combined investments. For the many years it has been in existence, EFT’s have been successful with current stock markets due to its flexibility and low risk. Table of Content s Executive Summary 1 Table of Contents 2 Introduction 3 Individual Analysis 3 EFT Analysis 5 Swiss Based ETFs 5 Other Managed Funds (ETFs) 6 Personal Asset Allocation 8 The art of investing requires careful planning in asset allocation since the way you allocate your assets reflects the return on your investment. For instance, if you have $ 100, 000, you should invest in a number of investment options. Time factor is one of the most crucial factors to watch out while investing. Looking at the Swiss market, we witness that the some mutual funds have been performing very well compared to some ETFs. Therefore, it not easy to conclude that mutual funds are better than ETFs or vice-versa, the most important factor is tracking these investments over a suggested period of time (Ferri, 2011). A look at ComStage Stoxx Europe 600 ETF Household goods based product we notice that this ETF tracks household goods stocks in the Swiss market. This ETF has performed well over the past two years ret urning 40.2% compared to the ComStage Stoxx Europe 600 Food & beverages ETF which returned only 24.1% as witnessed by table 4 in the appendix. In comparison to the United States of America where there is a mid cap fund that has returned over 41.87%. This performance is better than the ETF based investment option in Switzerland (Wagner, 2008). This mutual fund is known as the JB holdings fund and it has invested in different segments based on a selected benchmark. A list of investments in the JB holdings fund is shown by table 5 in the appendix. Based on the analysis of the different ETFs and funds listed above, it is difficult to choose the best investment option by solely choosing and ETF or fund based investment (Madura, 2008). The best investment decision to undertake when investing in an ETF or fund is to analyze the industry or benchmark used in implementing the fund or ETF product. Time factor is also very important since most ETFs or funds take a minimum of three years for th e investment to make marginal gains. 8 Current Investing Trends 8 References 12 Appendix 14 Introduction The art of investing is very difficult and challenging and many a times, people find it difficult to invest. Several investment options are available to potential investors interested in making profits. Investing is a risky venture and many people prefer to invest in low risk investments. As a result, many investment banks and

Stereotypes of African American Women in Film Essay

Stereotypes of African American Women in Film - Essay Example In film, the seductive and worldly imagery of the African American woman has endured. While more empowered positions have been created over time with race relations slowly repairing and providing for a less judgmental view on the African American woman, the films of the early twentieth century reveal the story of how she was viewed. Through the work of Lena Horne and Dorothy Dandridge, the stereotypes can be seen, but explored with a deeper complexity that was brought to the roles because of the presentations that Horne and Dandridge brought to their work. In many ways, the work that was done by Lena Horne and Dorothy Dandridge broke some of the stereotypes that had been most prevalent about African American women. Horne stated of her position in Hollywood that â€Å"They didn’t make me into a maid†¦but they didn’t make me into anything else either. I became a butterfly pinned to a column singing away in Movieland† (Bogle, 2001, p. 127). She came across as w holesome a problem for the sex-object roles that she was given. Because of her nature, she was not seen as a â€Å"slutty† character, but was engaging as an alluring woman who flirted and teased, rather than performed acts that would diminish her nature. She was elegant and poised, thus creating sophisticated presence. In this, her roles created a sense of broken stereotypes, the women she portrayed not the average that was promoted during her time. Horne’s portrayal of Georgia Brown in Cabin in the Sky never broke through to representing a woman of ill-repute. Bogle describes her work as â€Å"startling freshness and untainted wholesome beauty† from both Cabin in the Sky (1943) and Stormy Weather (1942). Her role in Stormy Weather, made her an â€Å"object of contemplation, rather than one of possession† (Bogle, 2001, p. 127). In Cabin in the Sky, she is positioned as an instrument of Lucifer, but she brings a complexity as she never fully slips into the state of a tainted woman. In Stormy Weather, puts Horne in context with the music industry of the early 20th century. She represents an ambitious, but desirable woman who is seeking a career over love. This representation broke with the traditions of both women and African American women, her desires for something beyond an immediate gratification not a familiar stereotype. One of the problems with Cabin in the Sky was that it was set in a familiar type of fantastical setting in which there was an ideal ‘otherness’ in which African Americans lived. This concept suggested that while their lives were separate, they did not suffer from segregation, but flourished in communities that were just out there somewhere (Bugle, 2001, p. 131). Where Cabin in the Sky created an unrealistic domestic space, Stormy Weather created a somewhat unrealistic professional space in which African Americans experienced their lives. The film was an example of wartime escapism, providing an unre alistic world in which to experience a diversion from the seriousness of the nature of life during the war. Both of these films, however, were ground-breaking as they each had fully African American casts, the diversity of the roles within those films providing for a better exploration of African American life. Two roles that Horne greatly desired, ended up being given to Dorothy Dandridge. The role of both Carmen Jones (1954) and Jane Richards in Bright Road (1953) were given to Dandridge over Horne. Where Horne exuded a ‘

Dehumanization of the Slave Trade Essay -- Slaves Blacks Black Race Ra

Dehumanization of the Slave Trade Bare feet walked across the rocky dirt road. Hands, feet, and wrists chained together. A long line of black people, men and women and even young maturing children. Beaded up hair from the water and sweat dripping from their filthy bodies from the hot desert-like sun beaming upon them. Dusty looking skin from the times they fell and tried so hard to get up. Empty stomachs; starving people; black people. Some naked and some clothed. They have been walking for some miles, being pulled along, whipped continuously, and told what to do; by the white man. Flies buzzing around them. Rotten smells of all sorts. Swollen feet and hands from the treacherous journeys and over-bearing labor that they had to endure. They were slaves. In the 16th and 17th centuries, the labor of African Americans was in higher demand. This was due to the insufficient amounts of white and Indian indentured servants, for the use of agricultural labor. During the 16th and 17th century time periods, Brazilian and Caribbean sugar plantations were very profitable and the use of African Americans as the laborers/workers provided a model for the European colonists in North America. (historychannel.com) Africans served as guides and soldiers in the journey of Mexico, however when they were brought to North America they were instead used to produce export crops, such as tobacco, rice, indigo, and cotton, which was a major source of wealth. Once this had begun the English settlers gradually begin to turn to black slavery to solve the labor shortage (history channel.com). Spain and England engaged in the housing of slaves. In the 16th century Spain brought in 100,000 Africans. However England did no... ...nized English, and religion, and the other aspects of the Western civilization, thereby creating their own unique culture that combined African with European elements. They tried to take over our minds, souls, and bodies, but only got what they gave us, nothing in return. Bibliography Funk And Wagnalls. "History of the Civil Rights Struggle: The Slave Era." History.com. 2005. World Almanac Education Group, A WRC Media Company. 17 Feb. 2006 http://www.historychannel.com/blackhistory/?page=history2. Unknown. "People & Events Royal African Company established 1672." Pbs.org. WGBH and PBS online. 17 Feb. 2006 http://www.pbs.org/wgbh/aia/part1/1p269.html. Gaines, Ernest J. New York: Vintage Books, 1993. 63. Gaines, Ernest J. New York: Vintage Books, 1993. 167. Gaines, Ernest J. New York: Vintage Books, 1993. 192.

Global Society Essay

The world we are in today has seen the end of bipolarity that has been brought about by wars that divided. Every day we see the world grow smaller and people are brought together by common issues and concerns. States become interdependent and connected through globalization. Global actors include along with the state, non-governmental organizations and multinational corporations. These global actors have diverse and divergent, often conflicting, interests that must be met. States, such as the developing countries, need a level playing field in the global arena. The non-governmental organizations are people oriented, and often seeking to improve their quality of life. Multinational businesses are profit and expansion driven. Multinational corporations play a big role in economic globalization. They fuel economies by the investment they bring in that create jobs and allow the exchange of technology through skills and knowledge. MNCs are also seen as having insatiable greed for wealth, which create and dictate markets, displace small enterprises and dislocate people. Corporate Social Responsibility is when business interests are met along with the other interests of society as a whole. CSR has four integral parts, which are: (1) profit generation, (2) observing human rights, payment of taxes, cooperation with the government, promoting health and safety, and supporting workers, (3) doing the right, fair and just thing, and (4) sharing resources and profits to improve lives especially in the areas of education, health and the arts. The UN Global Compact attempts to develop Corporate Social Responsibility globally. The Global Compact provides the mechanism that covers all directions of the social spectrum such as horizontal and vertical, formal and informal, state and non-state. The approach is from all dimensions, diverse, multi-level and a network structure. UN agencies like UNDP, UNHCR and UNESCO partner with many philanthropic foundations in many CSR activities showing that MNCs can both be profit-motivated and socially-responsible. References Fritsch, Stefan. (January 2008). The UN Global Compact and the Global Governance of Corporate Social Responsibility: Complex Multilateralism for a more Human Globalization. Global Society, Vol. 22, No. 1.

Video Games Vs. Wii - 1344 Words

Video Games have been around since the 1950’s meant to entertain people, and to bring them into a fantasy world they have never been to before. However, they haven’t become popular until around the 1970’s and 1980’s introducing arcade games in corner stores, console games like Nintendo, and computer games. The very first console introduced was the ATARI in 1977 which was about every child’s first console they ever played, and was around until the 1990’s. Due to the popularity over video games being around for over 30 years they have become a part of modern society. Today’s most popular consoles are the Wii U, Xbox One, and the PlayStation 4. Video Games have come a long way since their debut having such a big impact on gamers that not only they can play these different types of games, â€Å"they are talked about, read about, fantasized about, cheated at, altered, and become models for everyday life and for the formation of subjectively and intersubjectivity† (Annetta 230). The majority of the population of people who play video games are mostly children and teens falling between the ages of 10-19 and even adults as well. It’s amazing how a wide range of age groups play video games and not just children. Unfortunately, today in American society, people think that video games are triggered for violence and aggressive behavior, and they don’t focus on the positive benefits video games have to offer. This may be because some games have weapons are present, especially in M-ratedShow MoreRelatedSony Playstation 3 Case Essay1177 Words   |  5 Pagesfurther customers require games which are easy to play be cause they have a low degree of comfort with new technologies. Furthermore some of them don’t want to invest a significant amount of their time to learn and play these games because of their busy lives. * Supply simpler games irrespective of age, gender or gaming experience. This could lead Sony to two advantages: 1. Larger number of potential customers 2. Lower production costs for the simpler games higher margins * SupplyRead MoreSony Playstation 3 Case Study1151 Words   |  5 Pagesfunctionality of the Nintendo Wii’s â€Å"Wii-mote†, which will most likely sway new buyers away from Wii. Sony has also built a library of very popular games that was a major weak point at the time around release. While many of these moves are a step in the right direction, they were almost expected. For Sony to truly bring back the following they once had with the Play Station 1 and 2, they need to go back to the fundamental mentality of game content. Many of the popular games are now released for all threeRead MoreVideo Game Industry Analysis Essay1698 Words   |  7 PagesIndustry background The video game industry (formally referred to as interactive entertainment) is the economic sector involved with the development, marketing and sale of video and computer games. It includes video game consoles, game software, handheld devices, mobile games and online games. The video gaming industry has been growing exponentially in recent years. The growth is expected to leap-frog in the future. Following chart shows the projected market share by 2010 of different segmentRead MoreThe Impact Of Technology In Physical Education718 Words   |  3 Pagesto simply inform. When it comes to physical education, it has provided physical educators with numerous apps that track movements and provides nutritional help. Others apps enhance athletic activities like basketball or football. Some even capture videos and pictures where athletic movements are analyzed to help improve the athletes’ physical skills. In addition to mobile apps, physical education teachers can educate their students by using wearable technology. In the physical education departmentRead MoreEssay on Analysis of Video Game Systems1929 Words   |  8 PagesAnalysis of Video Game Systems The consumer video game systems offer an exciting opportunity to discuss and analyze the design of technology based on the strategy of each of the players within the industry. We will focus our analysis on the next generation of video consoles: Nintendo’s Wii, Microsoft’s Xbox 360 and Sony PlayStation 3 (PS3). First, we will analyze the targeted customer and the proposition designed by each company to attract them. In this part, there is a description of eachRead MoreNintendos Wii Strategy5218 Words   |  21 PagesNintendo has pursued a fundamentally different strategy and business model with the Wii console than that of its competitors, the Microsoft Xbox 360 and Sony PlayStation 3. The heart of Nintendo’s strategy was the assumption that consoles do not necessarily require leading-edge power and performance. This is a radical stance since the gaming industry traditionally competed on technological performance, graphic quality, and game realism: factors valued primarily by die-hard gaming fans. Nintendo shifted itsRead MoreNintendo Marketing Plan8431 Words   |  34 PagesExecutive Summary 4 2. Problem Statement 4 3. External Analysis 5 3.1 Macro Analysis 5 3.1.1 Demographic 5 3.1.2 Economic 5 3.1.3 Social-Cultural 6 3.1.4 Technological 6 3.2 Meso Analysis 7 3.2.1 Global Video Game Industry Sales 7 3.2.2 New Trend in Video Game Industry 8 3.2.3 Porter’s Five Forces 9 3.3 Competitors Analysis 10 3.3.1 Sony 10 3.3.2 Microsoft 11 3.3.3 Apple 12 4. Internal analysis 13 4.1 The Company 13 4.2 Current Marketing Strategy 13 5. SWOTRead MoreResponding to Wii9358 Words   |  38 Pages9-709-448 REV: JANUARY 4, 2010 ANDREI HAGIU HANNA HAÃ… ABURDA Responding to the Wii? Kazuo Hirai, chief executive of Sony Computer Entertainment Inc. (SCEI), had just gotten off a conference call with journalists. It was late August 2008, and the reporters were inquiring about Afrika, a new safari videogame for Sony’s PlayStation 3 (PS3) console that allowed players to watch wild animals and take virtual pictures. Hirai could not help feeling frustrated. Most of the conversation—like manyRead MoreThe Video Game Industry Essay1651 Words   |  7 PagesThe Video Game Industry The video gaming industry has come a long way from the first home based gaming system since the Magnavox Odyssey. Through the decades, the video game industry has rapidly improved the technology to home gaming, and made arcades nonexistence. The major video gaming titans of today are Nintendo, Microsoft Xbox, and Sony Playstation. These three have been in war with each other the past ten years, and neither show signs of defeat. However the two leading competitors of highRead MoreCase 11 - Video Game Consoles Industry Discussion1530 Words   |  7 PagesCompetition in Video Game Consoles: The State of the Battle for Supremacy in 2008 DISCUSSION QUESTIONS 1. What are the strategy-shaping business and economic characteristics of the console segment of the video game industry? What is the industry like? The video game industry is the economic sector involved with the development, marketing and sale of video games. It encompasses dozens of job disciplines and employs thousands of people worldwide. It includes video game consoles, game software, handheld