Free Essays on Nonverbal Communication

by means of facial expressions, eye contact, gestures, postures, physical appearance, and tones of voice. The concept of nonverbal communication is complex. It is almost impossible to know exactly what it includes, but the majority of our talking is done without speaking. No one can speak more than one word at a time, but nonverbal messages can be sent in multiple ways at the same time. The meaning of nonverbal messages differs between cultures (Morreale, Spitzberg, and Barge, Human Communication: Motivation, Knowledge, & Skills, 119), races, and sometimes gender (Burgoon and Saine, The Unspoken Dialogue: An Introduction to Nonverbal Communication, 130). Nonverbal and verbal communications sometimes contradict each other because people are sometimes unaware of the nonverbal messages that they send (Morreale, Spitzberg, and Barge, Human Communication: Motivation, Knowledge, & Skills, 119). The movement of the body makes up a language, in which certain movements have specific meanings. Kinesics focuses on how people communicate through movement and posture, gestures, and the face and eyes (Morreale, Spitzberg, and Barge, Human Communication: Motivation, Knowledge, & Skills, 124). Kinesics refers to all types of body movement, except for touch, that may act as nonverbal communication. Body movement and posture are known as body language. Gestures are large and small movements of the hands and arms that send messages. Gestures complement our speech, bridge our silences, send unspoken messages, or express our approval or disapproval (Lamb and Watson, Body Code: The Meaning in Movement, 1). Negative gestures like fidgeting lets others know that a speaker is... Free Essays on Nonverbal Communication Free Essays on Nonverbal Communication Nonverbal Communication Nonverbal communication and language are different. There has been some research claiming that humans used nonverbal communication before they developed a language. Nonverbal communication is the process of sending and receiving messages without using words by means of facial expressions, eye contact, gestures, postures, physical appearance, and tones of voice. The concept of nonverbal communication is complex. It is almost impossible to know exactly what it includes, but the majority of our talking is done without speaking. No one can speak more than one word at a time, but nonverbal messages can be sent in multiple ways at the same time. The meaning of nonverbal messages differs between cultures (Morreale, Spitzberg, and Barge, Human Communication: Motivation, Knowledge, & Skills, 119), races, and sometimes gender (Burgoon and Saine, The Unspoken Dialogue: An Introduction to Nonverbal Communication, 130). Nonverbal and verbal communications sometimes contradict each other because people are sometimes unaware of the nonverbal messages that they send (Morreale, Spitzberg, and Barge, Human Communication: Motivation, Knowledge, & Skills, 119). The movement of the body makes up a language, in which certain movements have specific meanings. Kinesics focuses on how people communicate through movement and posture, gestures, and the face and eyes (Morreale, Spitzberg, and Barge, Human Communication: Motivation, Knowledge, & Skills, 124). Kinesics refers to all types of body movement, except for touch, that may act as nonverbal communication. Body movement and posture are known as body language. Gestures are large and small movements of the hands and arms that send messages. Gestures complement our speech, bridge our silences, send unspoken messages, or express our approval or disapproval (Lamb and Watson, Body Code: The Meaning in Movement, 1). Negative gestures like fidgeting lets others know that a speaker is... Free Essays on Nonverbal Communication The location I chose to perform my violation of a cultural norm was in an elevator. I used the elevator that is located in my dormitory’s building. After trying to decide which cultural norm to experiment with, I came to the conclusion to invade someone else’s space. The plan I created was to move closer to someone, in the elevator, than the normal space required, while communicating with this person. It was real difficult to engage in this kind this behavior. I have never performed an action similar to this one. People assume that other people will respect and follow the normal rules to communication. It took all my power to make myself break one of those rules. I have to say, however, I was real anxious to see how the person was going to react. Having never performed this action before, I had no idea what to expect or how the person was going to act. The reaction of the person I performed my experiment on was one that I could have anticipated. When I first began to move closer to the person they performed no reaction. They showed no look that they acknowledge my changed behavior. After noticing this I decided to move even closer to the person. This time the person saw that I invade their space and took a small step back. Even though I didn’t know what to expect form this experiment, I had an idea that the initial reaction by the person would be to move back. I wasn’t satisfied with the person just moving back. I wanted the person to show a more defined reaction that would show they didn’t appreciate what I was doing. After the person stepped back, I took a step towards them once again. The person repeated the same movement they did before. I decided to take one more step forward and the person reacted verbally. The person, who had no idea who I was, asked me â€Å"what the heck I was doing.† At this point I could tell this person wasn’t pleased with me, and I decided to explain my experiment to them. The personï ¿ ½... Free Essays on Nonverbal Communication The usage of the eyes in nonverbal communication is a perpetual, trusted form of communication. As we communicate, we normally look into each others eyes trying to decode messages and enhance our ability to interact with the sender. This is one of the essential functions of the eyes, as a monitor of interaction. Environmental cues are a stimulus related function, which are sometimes out of our control of receiving and responding to. Eye contact however, enables us to have mutual communication in order to pickup other cues. By better executing proper communication cues you can see the â€Å"eye of the beholder†. Within interpersonal communication, being able to see beyond what the eyes are saying makes being able to accurately communicate possible. The eye is constantly communicating with the environment. Either by instinctively having a stimulus response or by intentionally directing vision, the eye serves as a mediator to the brain. The messages the eyes send to the brain bring about thought processes. For instance, when you see the stove is on and you avoid putting your hand on it or seeing a flash a lightning causing you to jump. As possibility the most necessary and frequent usage of the eye, it is not interpersonal. However, when foreseen by someone other than yourself that you are engaging in communication, whether intentional or not, it is. While the eyes may not be seen as a vital part of interpersonal communication, they are part of the face and a complimentary aspect of verbal communication. They can supportively coincide with or be contradictory to the overall communication taking place. Eye cues may even take the place of verbal communication as when staring harshly into someone’s eyes, or rolling th em in a disregarding manner. Understanding the messages you can send and understanding those that are received are essential to communication. The eyes are the most noticeable aspect of a person’s face. Whether...

I Have a Dream - Childrens Book About MLK Junior

I Have a Dream - Childrens Book About MLK Junior On August 28, 1963, Dr. Martin Luther King, Jr. gave his I Have a Dream speech, a speech that is still remembered and honored today. I Have a Dream by Dr. Martin Luther King, Jr., published in recognition of the 50th anniversary of the minister and civil rights leaders dramatic speech, is a childrens book for all ages that adults will also find meaningful. Excerpts of the speech, chosen for their accessibility to childrens understanding, are paired with the stunning oil paintings of artist Kadir Nelson. At the end of the book, which is in picture book format, youll find the full text of the Dr. Kings speech. A CD of the original speech is also included with the book. The Speech Dr. King delivered his speech to the more than a quarter of a million people participating in the March for Jobs and Freedom. He delivered his speech in front of the Lincoln Memorial in Washington, D.C. While stressing nonviolence, Dr. King made it clear that, Now is the time to rise from the dark and desolate valley of segregation to the sunlit path of racial justice. Now is the time to lift our nation from the quicksands of racial injustice to the solid rock of brotherhood. In the speech, Dr. King outlined his dream for a better America. While the speech, which was interrupted by cheers and applause from the enthusiastic audience, only lasted about 15 minutes, it and the integrated march had a profound impact on the Civil Rights Movement. The Books Design and Illustrations I had the opportunity to hear Kadir Nelson speak at the 2012 Book Expo America Childrens Literature Breakfast about the research he did, the approach he took, and his goals in creating the oil paintings for I Have a Dream. Nelson said he had to memorize Dr. Kings speech on short notice as a fifth grader just after moving to a new school. He said doing so made him feel stronger and more confident, and he hoped I Have a Dream would similarly affect children today. Kadir Nelson said that at first he wondered what he could contribute to Dr. Kings magnificent vision. In preparation, he listened to Dr. Kings speeches, watched documentaries and studied old photographs. He also visited Washington, D.C. so he could create his own photographic reference and better imagine what Dr. King saw and did. He and the editor worked to decide on what portions of Dr. Kings I Have a Dream would be illustrated. They chose segments that were not only important and well known but that spoke loudest to children. In illustrating the book, Nelson created two types of paintings: those that illustrated Dr. King giving the speech and those that illustrated Dr. Kings dream. At first, Nelson said he was unsure how to differentiate the two. It ended up that when illustrating the setting and mood of the day, Nelson created oil paintings of the scene as it was during Dr. Kings speech. When it came to illustrating the dream, Nelson said he tried to illustrate not the words so much as the concepts they represented and he used a bright cloud-like white background. Only at the end of the book, do the dream and reality merge. Kadir Nelsons artwork wonderfully illustrates the drama, the hopes and the dreams laid out that day in Washington, D.C. by Dr. Martin Luther King, Jr. The choice of excerpts and Nelsons sensitive illustrations combine to create meaning for even younger children who may not yet be mature enough to understand the full speech. The scenes that look out over Dr. Kings audience emphasize the breadth of his impact. The large close-up paintings of Dr. King emphasize the significance of his role and his emotions as he delivers the speech. Martin Luther King, Jr - Childrens Books and Other Resources There are several books about Martin Luther King, Jr. that I particularly recommend for children 9 and older who are interested in learning more about the civil rights leaders life. by Doreen Rappaport, provides an overview of Kings life and packs an emotional punch with its dramatic illustrations by Bryan Collier. The second, Portraits of African American Heroes features a portrait of Dr. King on the cover. He is one of 20 African Americans, men and women, featured in the nonfiction book by Tonya Bolden, along with sepia-toned portraits of each by Ansel Pitcairn. For educational resources, see Martin Luther King, Jr. Day: Lesson Plans You Can Use and Martin Luther King, Jr. Day: General Information and Reference Material. Youll find additional resources in the linkboxes and below. The Illustrator Kadir Nelson Artist Kadir Nelson has won numerous awards for his childrens book illustrations. He has also written and illustrated several award-winning childrens books: We Are the Ship, his book about the Negro Baseball League, for which he won the Robert F. Sibert Medal in 2009. Children who read Heart and Soul will learn about the Civil Rights Movement and the important role that Dr. Martin Luther King, Jr. played. The CD Inside the front cover of I Have a Dream is a plastic pocket with a CD in it of Dr. Kings original I Have a Dream speech, recorded on August 28, 1963. It is interesting to read the book, then the entire text of the speech and, then, listen to Dr. King speaking. By reading the book and discussing the illustrations with your children, youll gain insight as to the meaning of Dr. Kings words and how your children perceive them. Having the entire text in print allows older children to ponder Dr. Kings words more than once. Dr. King was a compelling speaker and what the CD does, is allows listeners to experience for themselves Dr. Kings emotion and impact as he spoke and the crowd responded. My Recommendation This is a book for family members to read and discuss together. The illustrations will help younger children to grasp more of the meaning of Kings speech and will help all ages to better understand both the significance and the impact of Dr. Kings words. The addition of the text of the entire speech at the end of the book, along with a CD of Dr. King delivering the speech, make I Have a Dream an excellent resource for the 50th anniversary of Dr. Kings speech and beyond. (Schwartz Wade Books, Random House, 2012. ISBN: 9780375858871) Disclosure: A review copy was provided by the publisher. For more information, please see our Ethics Policy.

Criminal law Coursework Example | Topics and Well Written Essays - 750 words

Criminal law - Coursework Example Sally complies and provides information. Denise, using this information, robs Victoria and also accidently fires a gun shot on her shoulder. This paper will discuss the liabilities and defence for both the defendants- Denise and Sally. It is clear that Denise knowingly went to rob Victoria. She had the attention to rob Victoria and had gained the necessary information from Sally to commit the crime. Denise was self-motivated. Robbery is taking money or goods forcefully from a person without the owners consent in his presence1. Denise is guilty of this charge. Moreover, Denise also went to the alley carrying a gun. The gun was loaded and Denise pointed it at Victoria while committing the robbery. This constitutes as violence. In this case, Denise cannot avoid being charged with armed robbery and violence. She would have to plead guilty of this charge. During their encounter, Denise fired a gunshot at Victoria which struck her on the shoulder and wounded her. Thus, Denise would also be charged for carrying and using an offensive weapon. For this, Denise is liable to being sentenced to prison. Denise could use the defence that she had no intention of wounding Victoria. The gunshot wound was not premeditated and was not intentional. Even though, Denise would still be charged for robbery and also wounding Victoria, she may be able reduce her sentence when she pleads guilty of robbery and unintentional weapon discharge. Sally is an accessory to the crime. An accessory to the crime is a person who is not the chief actor the felony or present at the time of the felony but rather helped commit the felony in a certain capacity. In this case, Sally is an accessory before the fact. An accessory before the fact is someone who helps or commands the chief actor of the felony before the felony is committed. The accessory to the fact either aids or encourages the principal to commit the crime. Sally was aware that Denise was going to use the information to

Pyramid Business Structures In China Essay Example | Topics and Well Written Essays - 4000 words

Pyramid Business Structures In China - Essay Example This essay explores the basics of the pyramid business structure and checks how far the business model has deep rooted in the Chinese environment. It also analyses whether the pyramidal structure is beneficial or harmful to the Chinese economy through a case study on CITIC. Introduction A pyramid business structure has one person who is a sole controller and owner of one or more organizations. The person and his firms control a chain of other business structures in various industries. Thus the person at the top of the pyramid is the indirect controller of several small firms owned by a handful of his companies. This structure is widely prevalent in all the developing countries especially China. The owner at the top of the pyramid is capable of controlling the actions of every other company under their firms with little investment through this method. Such type of business structure is important for the massive growth of huge corporate in the developing economies. But, developed count ries like the USA efficiently controlled this model as early as the 1930's as it curbed the growth of small entrepreneurs and entrusted too much profit into sectored groups. The US government used various strategies like double taxation to control pyramidal business sector (Marck et al, 2005). ... Claessens, Djankov and Lang (2000) confirm nearly 38.7% huge public firms in East Asia are managed through pyramid ownership. The pyramid business structure enables the ultimate owner to invest less and control massive cash flow. Another main advantage in this system is the firms controlled and the controller firms can share their resources in terms of capital, labour as well as revenue similar to business groups. But, the owner will be free from paying heavy taxes to the government for the small firms as only a handful of major firms are under his direct control. These controlled firms are used for the benefit of the owner in various ways. They can be discouraged from showing profits as the owner might need them to show losses to evade tax. These firms are run by the money invested by the common public or the shareholder who lack any control over these structures. This gap between control and cash investment paves way for tunnelling or which reduces the firm's total value. â€Å"Tu nneling† generally defined as the passing of assets or profits from the smaller country to the bigger companies for the ultimate benefit of the huge group’s owner. Research done by various scholars in the western countries as well as the growing eastern market suggests the same. Research done by La Porta, Lopez-de-Silanes, Shliefer and Vishny (2002) confirmed pyramid business structures paved way for tunnelling more than the other business structures after studying the top 27 economies in the western world. Claessens et al (2002) research in East Asian economies confirms the same. Classens et at (1998) claims there are three main problems in pyramid business structure. They are

Presentation and function of horror Essay Example for Free

Presentation and function of horror Essay I busied myself to think of a story a story to rival those which had excited us to this task. One which would speak to the mysterious fears of our nature and awaken thrilling horror one to make the reader dread to look round, to curdle the blood, and quicken the beatings of the heart. If I did not accomplish these things, my ghost story would be unworthy of its name. In the Authors introduction to the standard novels edition (1831), Mary Shelley conveys her aim of the novel, Frankenstein. Mary Shelley proclaims her novel my ghost story p.8. The proposal of a ghost story relates to supernatural literature, which creates horror with paranormal and occult themes, but Frankenstein in fact has no ghosts. There are no bumps in the night and only the minimum amount of blood with emphasis on telling rather than showing in a story of scientific developments beyond our control. To evoke horror Shelleys novel complies with literature of the gothic genre with its tale of macabre in wild picturesque landscapes but without the ghouls and spirits. Shelley has the ability to horrify us without such paranormal torments but through psychological torments. It is Mary Shelleys method and success of creating horror in the novel that this essay aims to discuss. Shelleys era saw rise to momentous discoveries and advances in science that many feared may lead to disaster. The scientific work of Sir Isaac Newton (1642 1727) coupled with the ideals of philosopher John Locke (1632 1704) saw increased ambition and power in the 17th Century. Parallels can be easily drawn between such ambitious scientists and philosophers, and Mary Shelleys fictional character of Victor Frankenstein. Clearly a large influence to the myth of creation the novel endures is aided by the development of electricity. Shelley uses these advances in technology to make her novel appear more realistic and therefore horrifying. She has replaced the heavenly fire of the Prometheus myth with the spark of newly discovered electricity. Although neglected in the novel, Kenneth Branaghs 1994, film Mary Shelleys Frankenstein draws parallels with Luigi Galvani (1737 -1798), by featuring his work of discovering a frogs legs could twitch in an electric field. The use of electricity plus the amniotic fluid, which Victor uses in his creation, mixes the idea of science with the mythical origins surrounding the birth of human life. As Mr Waldman presents and influences the work of Victor Frankenstein, the likes of Newton and Galvini coupled with discussions between Mary Shelley, husband Percy and Lord Byron at Lake Geneva in 1816 have indeed influenced Shelleys role in creating the horror surrounding Frankenstein. When considering horror, we must consider what actually evokes the horror. Shelleys use of language when Victor is developing his workshop of filthy creation p.52 is disturbing, although not much graphic content is written, it is more what is not said and left out that is horrific. The theme of control is central to this idea of horror. When considering the horrendous incidents of September the 11th 2001 in American, and the horrific images of planes hitting tower blocks, are response is stomach churning but the real horror is the lack of control, nobody knows when and how the attacks are going to happen and this is similar in Frankenstein. Victor is scared of the monster as he has no control over him and this permeates through to the reader. There is surely an eye opening benefit of being horrified in some aspects. We can test our courage and survival and prepare for the future and in this case we are providing with the dangerous premonitions of playing god. Due to Mary Shelleys experiences of death and pregnancy the novel seems to suggest her own mental torments about creation, and the horror of birth and development. Shelley lost most of her children, only one survived. Shelley may be using her novel as a way of voicing her disgust and unhappiness at how childbirth can appear. I kept my workshop of filthy creation p.52, may be referring to the womb, the disgust and pain a mother can feel at such unhappiness. The creation seems to depict mothers worst fears, being capable to accept and have endless love for a child and not reject in the horrific manner that Victor does. The description of the monster is very much similar to that of a newborn baby. Once again the 1994 film adaptation of the novel depicts the monsters first steps similarly to that of a newborn Deer, struggling to find his feet, clutching on to his creator for dear life. As the novel reaches horrific climax in Chapter Five, Victor is awoke from a dream to find one hand was stretched out p.56, as his creation asks for help, like a child would to a mother. The way in which this interaction takes place is horrific in that a monster-like creature standing beside his bed awakens Victor, but the manner in which Victor rejects his monster is equally horrific. The creation has no motive for death yet and he is surely asking for help and is abandoned less than a few hours after birth. The novel could be read as a version of what occurs when a man plays god and upsets nature. Trying to create a child without woman is not natural and the horrific incidents which follow act as a warning not to mes s with the origins of human life.

Tragic Heroes in Arthur Millers Death of a Salesman and Henrik Ibsens

Tragic Heroes in Arthur Miller's Death of a Salesman and Henrik Ibsen's A Doll's House Dramatists such as Aristotle started to write a series of plays called tragedies. They were as follows: the play revolved around a great man such as a king or war hero, who possessed a tragic flaw. This flaw or discrepancy would eventually become his downfall. These types of plays are still written today, for example, Arthur Millers "Death of Salesman" and Henrik Ibsens "A Dolls House." "Death of Salesman" shows the downfall of the modern tragic hero, Willy Loman, a middle class working man. Nora, in "A Doll's House" displays that characteristics of a tragic hero, in that she shows potential for greatness, but is stifled by her society. Willy Loman in "Death of a Salesman" and Nora in "A Dolls House" are two perfect examples that illustrate a tragic hero. In "Tragedy and the Common Man", Arthur Miller discusses different criteria and definitions for tragedy as they apply to the common man. Miller's ideal tragic hero is one who "is intent upon claiming his whole due as a personality," and when approached with a struggle, "demonstrating the indestructible will of man to achieve his humanity." A tragic hero is willing to takes on the role of what makes the audience accept him as a hero when by his own virtue is worthy of their attention and perhaps respect. Miller's common man, Willy, fought the battle of life, by trying to make the best of what he was given, and by living life the only way he knows how, being a traveling salesman. Being prideful, and at times stubborn man, he loses some opportunities to better his life along the way, partly because of his pride, and partly because of the American lifestyle, Willy is still attempting to support his family, even at age sixty. Though we think of Willy as a classic tragic hero, his life is more pathetic and saddening than inspiring. His name implies he is a "low man", an ordinary man, whose dreams and expectations have been shattered by the false values of society he has put his faith in. His problems stem from his own delusions which result of his failure to succeed in life. Willy's obsession and lack of insight thwart all his relationships and cause him to betray his own set of values. His loyal wife supports him in both his fantasies and failures and her life seems to be entirely absorbed into his. Unable to achie... ...n his world" (Para 14, Miller). Finally in the end, she begins to realize that her whole life has been a lie. Nora's rebellion was deliberate and well planned. She knew what was expected of her and she still did what she thought was right in her own mind. These qualities lie at the heart of Nora's heroic character. For Nora's heroically brave personality shows her confidence in herself and her absolute refusal to live a life where she is not in control of her actions. She flouted society's laws, worked hard, and is now about to reap the success of the action by handing over the final payment.   Ã‚  Ã‚  Ã‚  Ã‚  In conclusion, Willy Loman and Nora are two ideal examples of tragic heros. Both Ibsen and Miller have showed how the common man such as Nora in 'A Dolls House' and Willy Loman in 'Death of Salesman' have emerged as a tragic heroes. Works Cited: Ibsen, Henrik. A Doll's House. In Four Major Plays. Trans. James McFarlane and Jens Arup. Oxford: Oxford University Press, 1981 Miller, Arthur. Death of a Salesman. Literature: An Introduction to Fiction, Poetry, and Drama. Seventh Edition. X.J. Kennedy, and Dana Gioia. New York: Addison Wesley Longman, Inc., 1999. 1636-1707 Tragic Heroes in Arthur Miller's Death of a Salesman and Henrik Ibsen's Tragic Heroes in Arthur Miller's Death of a Salesman and Henrik Ibsen's A Doll's House Dramatists such as Aristotle started to write a series of plays called tragedies. They were as follows: the play revolved around a great man such as a king or war hero, who possessed a tragic flaw. This flaw or discrepancy would eventually become his downfall. These types of plays are still written today, for example, Arthur Millers "Death of Salesman" and Henrik Ibsens "A Dolls House." "Death of Salesman" shows the downfall of the modern tragic hero, Willy Loman, a middle class working man. Nora, in "A Doll's House" displays that characteristics of a tragic hero, in that she shows potential for greatness, but is stifled by her society. Willy Loman in "Death of a Salesman" and Nora in "A Dolls House" are two perfect examples that illustrate a tragic hero. In "Tragedy and the Common Man", Arthur Miller discusses different criteria and definitions for tragedy as they apply to the common man. Miller's ideal tragic hero is one who "is intent upon claiming his whole due as a personality," and when approached with a struggle, "demonstrating the indestructible will of man to achieve his humanity." A tragic hero is willing to takes on the role of what makes the audience accept him as a hero when by his own virtue is worthy of their attention and perhaps respect. Miller's common man, Willy, fought the battle of life, by trying to make the best of what he was given, and by living life the only way he knows how, being a traveling salesman. Being prideful, and at times stubborn man, he loses some opportunities to better his life along the way, partly because of his pride, and partly because of the American lifestyle, Willy is still attempting to support his family, even at age sixty. Though we think of Willy as a classic tragic hero, his life is more pathetic and saddening than inspiring. His name implies he is a "low man", an ordinary man, whose dreams and expectations have been shattered by the false values of society he has put his faith in. His problems stem from his own delusions which result of his failure to succeed in life. Willy's obsession and lack of insight thwart all his relationships and cause him to betray his own set of values. His loyal wife supports him in both his fantasies and failures and her life seems to be entirely absorbed into his. Unable to achie... ...n his world" (Para 14, Miller). Finally in the end, she begins to realize that her whole life has been a lie. Nora's rebellion was deliberate and well planned. She knew what was expected of her and she still did what she thought was right in her own mind. These qualities lie at the heart of Nora's heroic character. For Nora's heroically brave personality shows her confidence in herself and her absolute refusal to live a life where she is not in control of her actions. She flouted society's laws, worked hard, and is now about to reap the success of the action by handing over the final payment.   Ã‚  Ã‚  Ã‚  Ã‚  In conclusion, Willy Loman and Nora are two ideal examples of tragic heros. Both Ibsen and Miller have showed how the common man such as Nora in 'A Dolls House' and Willy Loman in 'Death of Salesman' have emerged as a tragic heroes. Works Cited: Ibsen, Henrik. A Doll's House. In Four Major Plays. Trans. James McFarlane and Jens Arup. Oxford: Oxford University Press, 1981 Miller, Arthur. Death of a Salesman. Literature: An Introduction to Fiction, Poetry, and Drama. Seventh Edition. X.J. Kennedy, and Dana Gioia. New York: Addison Wesley Longman, Inc., 1999. 1636-1707

Are Humans Responsible for Global Warming?

Are Humans Responsible for Global Warming? A REVIEW OF THE FACTS APRIL 2007 AUTHORS James Wang, Ph. D. Bill Chameides, Ph. D. Are Humans Responsible for Global Warming? The case for attributing the recent global warming to human activities rests on the following undisputed scientific facts: †¢ Carbon dioxide (CO2) is a greenhouse gas that warms the atmosphere. †¢ Since pre-industrial times, atmospheric CO2 concentrations have increased from about 280 parts per million (ppm) to over 380 ppm.Current concentrations of CO2 and other greenhouse gases are unprecedented in at least the last 650,000 years, based on records from gas bubbles trapped in polar ice. †¢ Independent measurements demonstrate that the increased CO2 in the atmosphere comes from burning fossil fuels and forests. The isotopic composition of carbon from these sources contains a unique â€Å"fingerprint. † †¢ Since pre-industrial times, global average temperatures have increased by about 0. 7? C , with about half of the warming occurring over the past few decades. The only quantitative and internally consistent explanation for the recent global warming includes the intensified greenhouse effect caused by the increase in CO2 and other greenhouse gases. The U. S. National Academy of Sciences—the independent organization of the country’s most renowned scientists established by Congress to advise the nation on scientific and technical issues—has concluded: â€Å"The scientific understanding of climate change is now sufficiently clear to justify nations taking prompt action. Some argue that the recent global warming is due to natural fluctuations and not to human activities. This argument and its fallacies are discussed below. Argument 1: CO2 is not coming from human activities CO2 has natural sources: volcanoes for example. All animals exhale it. How can human activities be affecting the concentration of CO2 on a global scale? The Facts Natural processes e mit large quantities of CO2 into the atmosphere, but they also remove it—at nearly identical rates.This balance maintained the concentration of CO2 at a stable level for thousands of years prior to the Industrial Revolution. In the case of global warming, the question is: What is causing the increase in CO2 concentrations? The answer turns out to be incontrovertible. The isotopic composition of carbon in atmospheric CO2 provides a unique â€Å"fingerprint† that tells scientists that the lion’s share of the additional CO2 accumulating in the atmosphere is from the burning of fossil fuels. Argument 2: No one really knows why the climate variesThe global climate has fluctuated considerably over the Earth’s history, either for unknown reasons or because of â€Å"internal variability† in the climate system. We do not know enough about the climate system to attribute the present global warming to any specific cause. The Facts It is true that the Earthâ⠂¬â„¢s climate has exhibited wide swings over geologic time due to natural processes. However, scientists have reasonable qualitative explanations for most of the significant variations in 2 limate over geologic time;1 they can be largely attributed to specific processes, not to unknown internal oscillations. Many of the major climatic changes can be traced to changes in the Earth’s orbit around the sun (Hays et al. Science, 194, 1976, pg. 1121). Others can be linked to specific events (such as the impact of a comet or meteorite or the assembly or breakup of supercontinents) that led to large changes in the concentration of atmospheric greenhouse gases.For more recent times (the past millennium), scientists have been able to quantitatively attribute the major temperature fluctuations to changes in solar activity, volcanic eruptions, and human-produced greenhouse gases and particulate pollution. These natural processes can not explain the current warming. Argument 3: The Medie val Warm Period disproves global warming The current warming trend is analogous to the Medieval Warming Period (MWP). Since the MWP was obviously a natural event, the current warming is also likely caused by natural processes. The FactsThe Medieval Warm Period (MWP) refers to a relatively warm period lasting from about the 10th to the 14th century. 2 However, the initial evidence for the MWP was largely based on data3 gathered from Europe, and more recent analyses indicate that the MWP was not a global phenomenon. A number of reconstructions of millennium-scale global temperatures have indicated that the maximum globally averaged temperature during the MWP was not as extreme as present-day temperatures and that the warming was regional rather than global. Perhaps the most well-known of these is that of Michael Mann and colleagues (Nature, 392, 1998, pg. 779).Their reconstruction produced the so-called â€Å"hockey stick† graphic that contributed to this conclusion in the 2001 assessment of the Intergovernmental Panel on Climate Change: â€Å"The†¦'Medieval Warm Period' appear(s) to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries. † The accuracy of the â€Å"hockey stick† graphic was widely discussed in the press when the Mann et al. methodology was criticized by McIntyre and McKitrick (Geophys. Res. Lettr, 32, 2005, pg. L03710). Less attention was given to subsequent studies, such as that of Moberg and colleagues (Nature, 433, 2005, pg. 13) and Osborn and Briffa (Science, 311, 2006, pg. 841) that were based on different, independent methodologies but reached conclusions similar to Mann. Observations of melting high altitude glaciers are perhaps even more telling. Andean glaciers that have been intact for more than 5,000 years are now rapidly melting (Thompson et al. Proc. Nat. Acad. Sci. , 103, 2006, pg. 10536). If the MWP was truly global, these glaciers would not have sur vived. More generally, it is a logical fallacy to argue that because the climate has changed in the past due to natural causes, the current warming trend must also be due to natural causes.The debate over the magnitude and causes of earlier climate change such as the MWP is of scientific interest, but it does not invalidate the considerable direct scientific evidence that human-produced greenhouse gases have been causing the Earth to warm recently. Argument 4: Recent predictions of a new ice age disprove global warming In the 1970s climate scientists were saying an ice age was imminent. Now they say the Earth is warming. They don’t know what they are talking about. The FactsThe Earth’s climate for the past 2 million years has been characterized by ice ages lasting close to 100,000 years, punctuated by relatively short (10,000- to 30,000-year) warm periods or â€Å"interglacials. † The swing from glacial to interglacial is caused by changes in the Earth’s orbit around the sun amplified by natural feedbacks involving greenhouse gases (Hays et al. Science, 194, 1976, pg. 1121). The Earth entered the present interglacial about 10,000 years ago. All things being equal (i. e. , in the absence of a large human-produced source of CO2) it is highly likely that the Earth will swing back into a glacial period or ice age.But this will not occur for thousands of years. 3 As early as the 19th century, scientists recognized that greenhouse gases warm the planet, and that increases in atmospheric carbon dioxide could lead to global warming on time scales of decades to centuries—much shorter than the fluctuations related to ice ages and interglacials. Around the same time, global temperatures began to increase and scientists became increasingly concerned that humans were interfering with the climate. In the 1950s the upward trend in global temperatures unexpectedly halted and temperatures declined somewhat.This led some scientists to become c oncerned about global cooling and, in turn, to headlines in the popular press about an imminent ice age. What the skeptics fail to admit is that within the scientific literature—as opposed to the popular press—global warming remained a serious concern. Many scientists of the time argued that whatever the cause of the cooling, natural or otherwise, it would be eventually overshadowed by the warming effect of carbon dioxide. In 1979, the National Academy of Sciences warned that a doubling of carbon dioxide would increase global temperatures by 1. 5 to 4. oC (Carbon Dioxide and Climate: A Scientific Assessment, NAS Press, 1979) and shortly thereafter a resumption of the upward trend in temperatures was detected. Over the past quarter century, scientific research on global climate change has intensified, and programs on an international scale have been organized. More and more data are included in computer models that are capable of recreating past trends and more precisel y predicting future scenarios. We now know that the mid-20th century pause in global warming was caused by pollution from burning coal, which produced tiny particles or aerosols that blocked the energy from the sun.As aerosol emissions were controlled but greenhouse gas pollution continued to increase, the cooling effect of the aerosols was overwhelmed by the greenhouse gases, and global warming resumed. Argument 5: Scientists cannot â€Å"prove† current warming is not natural Climate scientists can not prove that the current warming is not due to natural processes and therefore can not claim with certainty that the warming is due to human interference. The Facts It is of course true that, in a complex system like climate, it is virtually impossible to prove a negative; i. e. that natural processes are not causing the current warming. What we can do is eliminate every possible natural explanation that can be posited. Thermodynamics tells us that the warming of the Earthâ€⠄¢s lower atmosphere must arise from one or more processes that supply excess heat to the lower atmosphere. Besides the greenhouse effect, the viable processes are (1) increased output from the sun; (2) increased absorption of heat from the sun due to a change in the Earth’s planetary reflectivity or â€Å"albedo†; and (3) an internal variation in the climate system that transfers heat from one part of the Earth to the atmosphere.Direct observations confirm that none of these explains the observed warming over the latter half of the 20th century. For example there has been no appreciable change in solar output over the past two decades (see Figure 1). Figure 1. Change in solar output from 1980 to 2005. Figure 1 shows the relative change in solar output determined from two of satellite measurements over a two-decade period. The data show variability in solar output corresponding to the 11-year sunspot cycle, but no secular trend. Source: After Lean and Froelich, 2006. 4 Satellite data reveal that the Earth’s reflectivity increased (causing cooling instead of warming) in the ’60’s, ‘70s, and early ‘80s and has decreased modestly since. 4 The overall warming from the recent decrease in reflectivity is also small compared to the greenhouse warming. In the case of internal variations, the ocean is the only viable reservoir of internal heat that could have caused the atmosphere to warm on decadal time-scales. However, observations show that the heat content of the ocean has increased instead of decreased over the past few decades (See Figure 2).This indicates that the atmosphere has been a source of heat to the ocean rather than vice versa. Moreover, the amount of heat increase in the ocean is consistent with what is needed to balance the Earth’s energy budget given the excess heating from the enhanced greenhouse effect and the amount of excess heat observed to be stored in the atmosphere (Hansen et al. Science, 3 08, 2005, pg. 1431). In other words, the amount of heat stored in the ocean over recent years matches the amount of heat that models predict should be trapped on Earth due to the increase in greenhouse gases. Figure 2.Change in heat content of ocean 1955 to 2005 Source: After Levitus et al. 2005. FIGURE 2 SHOWS THE RELATIVE CHANGE IN THE HEAT COTENT OF THE OCEAN FROM 1955 TO 2005 BASED ON A COMPREHENSIVE ANALYSIS OF OCEAN TEMPERATURE MEASUREMENTS. THE DATA SHOW SHORT TERM VARIABILITY BUT A CLEAR UPWARD TREND ON DECADAL TIME-SCALES. Conclusion †¢ The Medieval Warm Period does not represent an analogy to the warming of the late 20th century, for which scientists have independent evidence of human causation, and the evidence strongly suggests that the MWP was a regional, rather than a global phenomenon. Our understanding of the climate system is sufficient to provide qualitative models for most global or hemispheric climatic variations over geologic history and quantitative models for variations over the past millennium. †¢ The Earth’s climate may return to ice age conditions in thousands of years, but this does not preclude devastating effects from global warming over the next few centuries. 5 †¢ All known natural explanations for the current global warming trend have been eliminated by direct observations.The human-intensified greenhouse effect provides the only quantitative explanation for the current warming trend. About the authors Dr. Wang received his doctorate from Harvard University and works as a climate scientist at Environmental Defense. He has published several peer-reviewed papers on the global methane budget and was the author of â€Å"The Latest Myths and Facts on Global Warming,† which was read into the congressional record by Senator John McCain in 2005. The report is available at http://www. undoit. org/pdfs/mythsvfacts. pdf. Dr. Chameides, chief scientist at Environmental Defense, is a member of the U.S. National A cademy of Sciences and has been named a National Associate of the National Academies. He is also an American Geophysical Union Fellow, and has received the American Geophysical Union's Macelwane Award. Dr. Chameides has served as editor of the Journal of Geophysical Research and is the author or coauthor of more than 120 scientific publications and five books. He received his doctorate from Yale University. The explanations are qualitative instead of quantitative because we do not have quantitative data from these events in the distant past to construct their exact histories. It has been suggested based on temperature reconstructions and model simulations that the MWP may have been caused by increased solar activity or a dearth of volcanic activity. 3 th Because worldwide temperature measurements do not exist before the 19 century, temperature records before th the 19 century are based on reconstructions of the temperature from the variations in temperature-sensitive proxies (e. g. , tree rings, isotopes in ice cores). 4 These variations are possibly due to changes in the concentrations of atmospheric aerosols produced from the burning of fossil fuels and biomass. 1 6 Are Humans Responsible for Global Warming? Are Humans Responsible for Global Warming? A REVIEW OF THE FACTS APRIL 2007 AUTHORS James Wang, Ph. D. Bill Chameides, Ph. D. Are Humans Responsible for Global Warming? The case for attributing the recent global warming to human activities rests on the following undisputed scientific facts: †¢ Carbon dioxide (CO2) is a greenhouse gas that warms the atmosphere. †¢ Since pre-industrial times, atmospheric CO2 concentrations have increased from about 280 parts per million (ppm) to over 380 ppm.Current concentrations of CO2 and other greenhouse gases are unprecedented in at least the last 650,000 years, based on records from gas bubbles trapped in polar ice. †¢ Independent measurements demonstrate that the increased CO2 in the atmosphere comes from burning fossil fuels and forests. The isotopic composition of carbon from these sources contains a unique â€Å"fingerprint. † †¢ Since pre-industrial times, global average temperatures have increased by about 0. 7? C , with about half of the warming occurring over the past few decades. The only quantitative and internally consistent explanation for the recent global warming includes the intensified greenhouse effect caused by the increase in CO2 and other greenhouse gases. The U. S. National Academy of Sciences—the independent organization of the country’s most renowned scientists established by Congress to advise the nation on scientific and technical issues—has concluded: â€Å"The scientific understanding of climate change is now sufficiently clear to justify nations taking prompt action. Some argue that the recent global warming is due to natural fluctuations and not to human activities. This argument and its fallacies are discussed below. Argument 1: CO2 is not coming from human activities CO2 has natural sources: volcanoes for example. All animals exhale it. How can human activities be affecting the concentration of CO2 on a global scale? The Facts Natural processes e mit large quantities of CO2 into the atmosphere, but they also remove it—at nearly identical rates.This balance maintained the concentration of CO2 at a stable level for thousands of years prior to the Industrial Revolution. In the case of global warming, the question is: What is causing the increase in CO2 concentrations? The answer turns out to be incontrovertible. The isotopic composition of carbon in atmospheric CO2 provides a unique â€Å"fingerprint† that tells scientists that the lion’s share of the additional CO2 accumulating in the atmosphere is from the burning of fossil fuels. Argument 2: No one really knows why the climate variesThe global climate has fluctuated considerably over the Earth’s history, either for unknown reasons or because of â€Å"internal variability† in the climate system. We do not know enough about the climate system to attribute the present global warming to any specific cause. The Facts It is true that the Earthâ⠂¬â„¢s climate has exhibited wide swings over geologic time due to natural processes. However, scientists have reasonable qualitative explanations for most of the significant variations in 2 limate over geologic time;1 they can be largely attributed to specific processes, not to unknown internal oscillations. Many of the major climatic changes can be traced to changes in the Earth’s orbit around the sun (Hays et al. Science, 194, 1976, pg. 1121). Others can be linked to specific events (such as the impact of a comet or meteorite or the assembly or breakup of supercontinents) that led to large changes in the concentration of atmospheric greenhouse gases.For more recent times (the past millennium), scientists have been able to quantitatively attribute the major temperature fluctuations to changes in solar activity, volcanic eruptions, and human-produced greenhouse gases and particulate pollution. These natural processes can not explain the current warming. Argument 3: The Medie val Warm Period disproves global warming The current warming trend is analogous to the Medieval Warming Period (MWP). Since the MWP was obviously a natural event, the current warming is also likely caused by natural processes. The FactsThe Medieval Warm Period (MWP) refers to a relatively warm period lasting from about the 10th to the 14th century. 2 However, the initial evidence for the MWP was largely based on data3 gathered from Europe, and more recent analyses indicate that the MWP was not a global phenomenon. A number of reconstructions of millennium-scale global temperatures have indicated that the maximum globally averaged temperature during the MWP was not as extreme as present-day temperatures and that the warming was regional rather than global. Perhaps the most well-known of these is that of Michael Mann and colleagues (Nature, 392, 1998, pg. 779).Their reconstruction produced the so-called â€Å"hockey stick† graphic that contributed to this conclusion in the 2001 assessment of the Intergovernmental Panel on Climate Change: â€Å"The†¦'Medieval Warm Period' appear(s) to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries. † The accuracy of the â€Å"hockey stick† graphic was widely discussed in the press when the Mann et al. methodology was criticized by McIntyre and McKitrick (Geophys. Res. Lettr, 32, 2005, pg. L03710). Less attention was given to subsequent studies, such as that of Moberg and colleagues (Nature, 433, 2005, pg. 13) and Osborn and Briffa (Science, 311, 2006, pg. 841) that were based on different, independent methodologies but reached conclusions similar to Mann. Observations of melting high altitude glaciers are perhaps even more telling. Andean glaciers that have been intact for more than 5,000 years are now rapidly melting (Thompson et al. Proc. Nat. Acad. Sci. , 103, 2006, pg. 10536). If the MWP was truly global, these glaciers would not have sur vived. More generally, it is a logical fallacy to argue that because the climate has changed in the past due to natural causes, the current warming trend must also be due to natural causes.The debate over the magnitude and causes of earlier climate change such as the MWP is of scientific interest, but it does not invalidate the considerable direct scientific evidence that human-produced greenhouse gases have been causing the Earth to warm recently. Argument 4: Recent predictions of a new ice age disprove global warming In the 1970s climate scientists were saying an ice age was imminent. Now they say the Earth is warming. They don’t know what they are talking about. The FactsThe Earth’s climate for the past 2 million years has been characterized by ice ages lasting close to 100,000 years, punctuated by relatively short (10,000- to 30,000-year) warm periods or â€Å"interglacials. † The swing from glacial to interglacial is caused by changes in the Earth’s orbit around the sun amplified by natural feedbacks involving greenhouse gases (Hays et al. Science, 194, 1976, pg. 1121). The Earth entered the present interglacial about 10,000 years ago. All things being equal (i. e. , in the absence of a large human-produced source of CO2) it is highly likely that the Earth will swing back into a glacial period or ice age.But this will not occur for thousands of years. 3 As early as the 19th century, scientists recognized that greenhouse gases warm the planet, and that increases in atmospheric carbon dioxide could lead to global warming on time scales of decades to centuries—much shorter than the fluctuations related to ice ages and interglacials. Around the same time, global temperatures began to increase and scientists became increasingly concerned that humans were interfering with the climate. In the 1950s the upward trend in global temperatures unexpectedly halted and temperatures declined somewhat.This led some scientists to become c oncerned about global cooling and, in turn, to headlines in the popular press about an imminent ice age. What the skeptics fail to admit is that within the scientific literature—as opposed to the popular press—global warming remained a serious concern. Many scientists of the time argued that whatever the cause of the cooling, natural or otherwise, it would be eventually overshadowed by the warming effect of carbon dioxide. In 1979, the National Academy of Sciences warned that a doubling of carbon dioxide would increase global temperatures by 1. 5 to 4. oC (Carbon Dioxide and Climate: A Scientific Assessment, NAS Press, 1979) and shortly thereafter a resumption of the upward trend in temperatures was detected. Over the past quarter century, scientific research on global climate change has intensified, and programs on an international scale have been organized. More and more data are included in computer models that are capable of recreating past trends and more precisel y predicting future scenarios. We now know that the mid-20th century pause in global warming was caused by pollution from burning coal, which produced tiny particles or aerosols that blocked the energy from the sun.As aerosol emissions were controlled but greenhouse gas pollution continued to increase, the cooling effect of the aerosols was overwhelmed by the greenhouse gases, and global warming resumed. Argument 5: Scientists cannot â€Å"prove† current warming is not natural Climate scientists can not prove that the current warming is not due to natural processes and therefore can not claim with certainty that the warming is due to human interference. The Facts It is of course true that, in a complex system like climate, it is virtually impossible to prove a negative; i. e. that natural processes are not causing the current warming. What we can do is eliminate every possible natural explanation that can be posited. Thermodynamics tells us that the warming of the Earthâ€⠄¢s lower atmosphere must arise from one or more processes that supply excess heat to the lower atmosphere. Besides the greenhouse effect, the viable processes are (1) increased output from the sun; (2) increased absorption of heat from the sun due to a change in the Earth’s planetary reflectivity or â€Å"albedo†; and (3) an internal variation in the climate system that transfers heat from one part of the Earth to the atmosphere.Direct observations confirm that none of these explains the observed warming over the latter half of the 20th century. For example there has been no appreciable change in solar output over the past two decades (see Figure 1). Figure 1. Change in solar output from 1980 to 2005. Figure 1 shows the relative change in solar output determined from two of satellite measurements over a two-decade period. The data show variability in solar output corresponding to the 11-year sunspot cycle, but no secular trend. Source: After Lean and Froelich, 2006. 4 Satellite data reveal that the Earth’s reflectivity increased (causing cooling instead of warming) in the ’60’s, ‘70s, and early ‘80s and has decreased modestly since. 4 The overall warming from the recent decrease in reflectivity is also small compared to the greenhouse warming. In the case of internal variations, the ocean is the only viable reservoir of internal heat that could have caused the atmosphere to warm on decadal time-scales. However, observations show that the heat content of the ocean has increased instead of decreased over the past few decades (See Figure 2).This indicates that the atmosphere has been a source of heat to the ocean rather than vice versa. Moreover, the amount of heat increase in the ocean is consistent with what is needed to balance the Earth’s energy budget given the excess heating from the enhanced greenhouse effect and the amount of excess heat observed to be stored in the atmosphere (Hansen et al. Science, 3 08, 2005, pg. 1431). In other words, the amount of heat stored in the ocean over recent years matches the amount of heat that models predict should be trapped on Earth due to the increase in greenhouse gases. Figure 2.Change in heat content of ocean 1955 to 2005 Source: After Levitus et al. 2005. FIGURE 2 SHOWS THE RELATIVE CHANGE IN THE HEAT COTENT OF THE OCEAN FROM 1955 TO 2005 BASED ON A COMPREHENSIVE ANALYSIS OF OCEAN TEMPERATURE MEASUREMENTS. THE DATA SHOW SHORT TERM VARIABILITY BUT A CLEAR UPWARD TREND ON DECADAL TIME-SCALES. Conclusion †¢ The Medieval Warm Period does not represent an analogy to the warming of the late 20th century, for which scientists have independent evidence of human causation, and the evidence strongly suggests that the MWP was a regional, rather than a global phenomenon. Our understanding of the climate system is sufficient to provide qualitative models for most global or hemispheric climatic variations over geologic history and quantitative models for variations over the past millennium. †¢ The Earth’s climate may return to ice age conditions in thousands of years, but this does not preclude devastating effects from global warming over the next few centuries. 5 †¢ All known natural explanations for the current global warming trend have been eliminated by direct observations.The human-intensified greenhouse effect provides the only quantitative explanation for the current warming trend. About the authors Dr. Wang received his doctorate from Harvard University and works as a climate scientist at Environmental Defense. He has published several peer-reviewed papers on the global methane budget and was the author of â€Å"The Latest Myths and Facts on Global Warming,† which was read into the congressional record by Senator John McCain in 2005. The report is available at http://www. undoit. org/pdfs/mythsvfacts. pdf. Dr. Chameides, chief scientist at Environmental Defense, is a member of the U.S. National A cademy of Sciences and has been named a National Associate of the National Academies. He is also an American Geophysical Union Fellow, and has received the American Geophysical Union's Macelwane Award. Dr. Chameides has served as editor of the Journal of Geophysical Research and is the author or coauthor of more than 120 scientific publications and five books. He received his doctorate from Yale University. The explanations are qualitative instead of quantitative because we do not have quantitative data from these events in the distant past to construct their exact histories. It has been suggested based on temperature reconstructions and model simulations that the MWP may have been caused by increased solar activity or a dearth of volcanic activity. 3 th Because worldwide temperature measurements do not exist before the 19 century, temperature records before th the 19 century are based on reconstructions of the temperature from the variations in temperature-sensitive proxies (e. g. , tree rings, isotopes in ice cores). 4 These variations are possibly due to changes in the concentrations of atmospheric aerosols produced from the burning of fossil fuels and biomass. 1 6

Ancient history course notes

Focuses on written sources, written sources restricted to the last 5500 years, written sources are limited to literate societies, written sources from ancient societies were mostly written by men, reflecting a male bias. Archaeology: Focuses on physical sources, physical sources extend as far back as the beginning of human history Into prehistory, physical artifacts provide information about all human activity, and archaeologists usually study the lives of all members of society.Find a site finds Excavate Record what is found Examine and investigate Publish Findings Analysis and Interpretation of finds Finding a site: Human activities have led to many chance finds. Some activities Include: plugging, land reclamation, digging and building foundations, quarrying and dredging, construction of roads, railways. Sewers etc and modern warfare. Crop Marks, Shadow marks, and satellite photography..Excavation: People who may be involved in a dig: Anthropologist- Someone who studies the origins of the human species and their change over time. Epigrapher-studies Inscriptions, deciphers tablets. Paleontologist-studies fossils of living organisms. Architect-Designs and oversees the making of buildings. Forensic Pathologist-a branch of pathology that deals with determining the cause of death. Proctologist-studies the translation of texts written on papyrus. Botanist-Studies all aspects of plant life Geochemistry-study of the earth's chemical compositions. Radiologist-A doctor who specialists In the use of x-rays. Ceramicist-A craftsman who shapes pottery and makes it in a kiln Numismatist- Someone who studies, grades and collects coins. Zoologist-studies all features of the animal kingdom Anatomist-studies features and organs of human and animal bodies. Climatologist- Studies climate Volcanisms-studies all features of castles and volcanoes.

Ted Talk Patricia Kuhl Essay Example

Ted Talk Patricia Kuhl Essay Example Ted Talk Patricia Kuhl Paper Ted Talk Patricia Kuhl Paper Essay Topic: Talk Patricia Kohl discusses amazing discoveries about how babies and young children learn language. Professor Kohl explains that language has a critical p eroded for learning. Babies and children are geniuses until the age of seven, and then the ere is a decline. After a child goes through puberty, the universal listening skills are n inexistent. Kohl refers to babies as Citizens of the World, which means that they can did fraternity all the sounds of all languages. Adults are culture bound listeners. We are ex PERTs at the sounds of our native language but not foreign languages. Through her rest reach, Professor Kohl has discovered that there is a very crucial two month period d ring a childs language acquisition. When babies are listening to the production of SP each, they are taking statistics on that specific language. These statistics being absorbed by the baby changes their brain. It changes them from universal listeners (or Citizen s of the World) to culture bound listeners. Professor Skulls presentation was intriguing and her findings are truly extraordinary and quite interesting. She discovered through her research that babies brains will only take statistics when there is physical interaction with a human Ewing. If language is presented to the child through television or audio, then there is n o learning at all. An infants social skills play an important role in learning. Even though the presentation was very thorough, there are still a few remain nag questions that I have. Do all children learn at the same rate? What happens if a child does not learn a language before puberty? Child language acquisition is a very interesting and intriguing topic. I learned a lot about how children acquire Ian gauge and hope to further educate myself about the subject in the future.

Mentos Diet Soda Chemical Volcano

Mentos Diet Soda Chemical Volcano Chemical volcanoes are classic projects for science fairs and chemistry demonstrations. The ​Mentos and diet soda volcano is similar to the baking soda volcano, except the eruption is really powerful, capable of producing jets of soda several feet high. Its messy, so you might want to do this project outdoors or in a bathroom. Its also non-toxic, so kids can do this project. This simple  chemical volcano takes a few minutes to set up and erupts for a few seconds What You Need Roll of Mentos candies2-liter bottle of  diet sodaIndex cardTest tube or sheet of paperA mop for cleanup Makingthe Mentos and Soda Erupt First, gather your supplies. You can substitute another candy for the Mentos, such as MMs or Skittles, but ideally, you want candies that stack into a neat column with minimal space between them, have a chalky consistency, and barely fit through the mouth of a 2-liter bottle.Similarly, you could substitute normal soda for diet soda. The project will work just as well, but the resulting eruption will be sticky. Whatever you use, the beverage has to be carbonated!First, you need to stack the candies. The easiest way to do this is to stack them in a test tube narrow enough to form a single column. Otherwise, you can roll a sheet of paper into a tube just barely wide enough for a stack of candies.Place an index card over the opening of the test tube or end of the paper tube to hold the candies in the container. Invert the test tube.Open your full 2-liter bottle of diet soda. The eruption happens very quickly, so set things up: you want the open bottle/index card/roll of candies so that a s soon as you remove the index card, the candies will drop smoothly into the bottle. When youre ready, do it! You can repeat the eruption with the same bottle and another stack of candies. Have fun! How the Mentos and Diet Soda Experiment Works The Diet Coke and Mentos geyser is the result of a physical process rather than a chemical reaction. Theres a lot of carbon dioxide dissolves in the soda, which gives it its fizz. When you drop a Mentos into the soda, tiny bumps on the candy surface give the carbon dioxide molecules a nucleation site or place to stick. As more and more carbon dioxide molecules accumulate, bubbles form. Mentos candies are heavy enough they sink, so they interact with carbon dioxide all the way to the bottom of the container. The bubbles expand as they rise. The partially dissolved candy is sticky enough to trap the gas, forming a foam. Because theres so much pressure, it all happens very quickly. The narrow opening of a soda bottle funnels the foam to make a geyser. If you use a nozzle that makes the opening at the top of the bottle even smaller, the jet of liquid will go even higher. You can also experiment using regular Coke (as opposed to the diet versions) or tonic water (which glows blue under a black light).

Competitive Analysis & Marketing Strategy for Dells Computer Essay

Competitive Analysis & Marketing Strategy for Dells Computer - Essay Example Studies carried out during that period indicated that Dell Company shipped less computer units in the whole world than Hewlett-Packard (Holzner, 2005). Conversely, recently, Apple Macs are more used in colleges than Dell computers. Dell has a competitive advantage over its rivals. The company’s mission is hugely focused on its clients. Its initiatives include promoting world growth, establishing a culture of winning, increasing the experience of clients, and attaining leadership of products. When the company sells the PCs to the clients directly, it understands the needs of clients and gives efficient computing answers to meet clients’ necessities. This perspective is advantageous to Dell because it permits the company to design effective systems for clients and at adequate costs. Moreover, the direct sales do away with middle men or retailers who add excessive cost and time. Also, Dell’s computers are customized and targeted to the needs of the clients. The company also provides projectors, network servers, work stations, and printers (Holzner, 2005). Dell’s position in the market place is that of convenience to the clients. Dell Company is a varied information technology provider which partners with other companies to provide a large variety of global services and products. Dell Company is committed to giving its clients well built and designed systems, and also ensuring that they are innovative so as to give clients a value that is outstanding (Mueller, 2002). For over 20 years, Dell Company has been linked with developing, customizing and designing services and products that satisfy a broad range of clients including individual clients to retailing and corporate businesses. Dell’s philosophy to directly engage customers has turned into a business model for other corporations and organizations (Dell &Â  Fredman, 2006). The manufacturing processes should be

Organizational Behavior and the Individual Essay

Organizational Behavior and the Individual - Essay Example Porter and Lawler’s theoretical model on individual motivation is largely based on this theory, and identifies expectancy, instrumentality and valence as the critical elements of motivation. These elements are related to extrinsic and intrinsic motivational factors which include praise, recognition, incentives, etc and intrinsic factors are associated with an individual’s psychological values associated with work, leaders and the self (Isaac, Zerbe & Pitt, 2001). This theory has been expressed through the MARS model by McShane and Glinow (2006, 2008) who describes individual behavior as a resultant of motivation, ability, role-perception and situational factors. Motivational activities at Verizon may be related to the critical elements of expectancy theory and heed to individuals’ material motivation in the form of external compensation and benefits; achievement motivation through internal rewards and recognition, and emotional motivation through a great work place for the employees. These in turn influence individual performance shaped by extensive training involving simulation, classroom instruction, and on-the-job training that define individuals’ role-perception, create ability and cover situational factors such as product knowledge, soft skills, time and budget, facilities etc (McShane & Glinow, 2008). Verizon’s training plays a significant role in attaining high customer satisfaction scores (Noe, 2008). McShane and Glinow quote, â€Å"people rely on their ethical values do determine ‘the right thing to do’† (2006, p.33). For this, they attribute utilitarianism, individual rights, and distributive justice as the main requirements to foster ethics in organization (2006, 2008). At an organizational level, its culture is one of the main spheres where business ethics can have a significant impact on organizational