Critical Rhetorical Analysis Essay Example | Topics and Well Written Essays - 1000 words - 2

Critical Rhetorical Analysis - Essay Example In Ted Talks: Making Global Labor Fair, Auret Van Heerden, uses several technical devices to make his speech. He uses rhetorical questions like â€Å"How come the U.S. Food and Drug Administration allowed this to happen? How did the Chinese State Agency for Food and Drugs allow this to happen?† (Auret, 2010). He uses rhetorical questions to make the audience aware of the government’s responsibility, as well as its failure in protecting worker’s human rights. The rhetorical questions he poses, he answers. He uses this persuasive technique to both inform and rouse the interest of the audience. Auret also uses contrast to pass his message across. For example, â€Å"We all love chocolate. We buy it for our kids. Eighty percent of the cocoa comes from Cote dIvoire and Ghana, and its harvested by children. Cote dIvoire, we have a huge problem of child slaves. Children have been trafficked from other conflict zones to come and work on the coffee plantations.† He uses the rhetoric strategy to draw a sharp contrast between the severities of the abuse of children’s human rights of those used as slaves to harvest the cocoa used to make the chocolate. The technique may fail due to its inclination to evoke emotions of the listeners. It is, however, a good strategy to show the difference between the children harvesting in the cocoa farms and those consuming the chocolate. The employment of these two rhetorical devices is valid because they are used in appropriate instances. For example, before Auret asked the question as to why the governments in America and China do not stand to protect the rights of its citizens, he had already laid out facts that show a violation of human rights. He used the technique to bring to light the inadequacies of the state laws in the international policy fields. He also used the technique to introduce his new argument about how the multinationals can be the solutions to the problem by employing a

Heat and temperature Coursework Example | Topics and Well Written Essays - 1000 words

Heat and temperature - Coursework Example As the kinetic theory of matter deals with the speed of particles of matter then the determination of particle speed can help us to study the kinetic theory of matter in greater detail. Therefore, the study of heat helps us to study the kinetic theory of matter. Heat is a form of energy that is transferred from one body to another in a system. When a warmer body is placed along a colder body, the heat from the warmer body will tend to go to the colder body. This process will continue until the energy of both systems becomes equal. (Reif, 2000) There are three modes of heat transfer better known as conduction, convection and radiation. Heat energy is important as it has direct relation to the physical state of a system. The addition of heat energy excites the particles present in a system. This enhances their random motion. Similarly, the removal of heat energy depresses the particles in a system which decreases their random motion. Temperature is a measurement that helps to quantify just how hot or cold a system is. Like other forms of measurement, the temperature scale is relative too. Temperature is used to measure just how much heat is being talked about. (Chang, 2004) Temperature helps to classify is there is some difference in heat between two bodies. This difference can be used to estimate the amount of heat transfer that will occur between both systems. Heat as already mentioned is a representation of the state of particle’s motion in a system. However, the speed of particles cannot be judged from one particle to the other. Therefore, there had to be some method of measuring the heat contained in a system. When a system contains heat, the particles in the system display random motion. This random motion is dealt with as the kinetic energy of the system. The speed of the particles and their weight are used to express the kinetic energy of a system. The total kinetic energy of a system is the heat content that resides in the system. This heat can be measured in reference to temperature. Temperature expresses the average measure of the heat contained in a system. Temperature expresses the willingness of a system to transfer heat energy if placed along a system with lower heat energy. Therefore, temperature is a method of measuring the total heat content of a system. (Kittel & Kroemer, 1980) Often heat and temperature are assumed to be one and same. However this concept is entirely false. Heat represents the total of a certain kind of energy possessed by a system. The temperature is only a method of measuring this energy possessed by the system. For example, if there were water standing in a pool which represented heat, then the measurement of its depth would be equivalent to temperature. Therefore, heat is a property possessed by a body while temperature is a measure of that body. Heat is possessed by all systems to varying degrees and is transferred by all systems to varying degrees too. However, the amount of heat retained by a system and the amount of heat transferred by a system vary in large part from one material to another. As an example, it is known that metals are good at the transfer of heat and insulators such as rubber are bad at transferring heat. The tendency of a body to both retain and transfer heat can be measured and expressed as well. This is also considered to be a property of the body and is known better as the â€Å"