The Aztecs Essays - Aztec Gods, Aztec Society, Aztec, Civilizations

The Aztecs The Aztec Indians, who are known for their domination of southern and central Mexico, ruled between the 14th and 16th centuries. Their name is derived from Azatlan, the homeland of the north. The Aztecs also call themselves Mexica and there language came from the Nahuatlan branch of the Uto-Aztecan family. The Aztecs were formed after the Toltec civilization occurred when hundreds of civilians came towards Lake texcoco. Late families were unfortunate and were forced to go to the swamp lands. In the swamp lands there was only one piece of land to farm on and it was totally surrounded by more marshes . The Aztec families some how converted these disadvantages to a might empire known as they Aztec Empire. People say the empire was partially formed by a deeply believed legend. As the the legend went it said that Aztec people would create a empire on in a swampy place where they would see an eagle eating a snake while perched on a cactus which is growing out of a rock in the swamplands. This is what priests claimed they saw while entering the new land. By the year 1325 Their capital city was finished. They called it Tenochtitlan. In the the capital city aqueducts (piping) were constructed, bridges were built, and chinapas were made. Chinapas were little islands formed by pilled up mud. On these chinapas Aztecs grew corn, beans, chili peppers, squash, tomatoes, and tobacco. Tenochtitlan (the capital city) was covered in giant religious statues in order to pay their respects to the gods. In the Aztec religion numerous gods controlled an Aztec's daily life. Some of these gods include: Uitzilpochtli (the sun god), Coyolxauhqui (the moon goddess), Tlaloc (the rain god), and Quetzalcoatl (the inventor of the calendar and writing). Another part of the Aztec religion was human sacrifices. For their sacrifices the priest would lay the man or woman over a convex (rounded) stone, then he would take a sharp knife and cut the victims heart out. They did this because they believed that good gods could prevent bad gods from doing evil things and they also believed that good gods got their strength from human blood and hearts so they had sacrifices in order to keep their gods strong. For major rituals warriors were sacrificed, for the warrior this was one of the greatest honors and for minor rituals prisoners were used. In an Aztec marriage the grooms shirt is tied to the brides dress in order to express there bonding and after the wedding incents were burned for 4 days before proceeding with the marriage. In 1519 Hernando Cortes, a Spanish explorer, led over 500 men into Aztec territory to search for gold. Aztecs thought he was a representative for a certain white skinned god so they respected him. It all changed when the Aztecs saw that Hernando was melting down their golden statues and shipping them back to Spain. The Aztecs decided to attack Hernando and his men. The Aztecs were successful and drove the Spanish away. In 1520 the Spanish attacked the Aztec's capital city and destroyed their civilization. That was the end of the Aztec's mighty empire had built so long ago. Work Cited 1) ?Aztec Indians?. Young Students Learning Library. 1993 2) Encarta ?96. CD-ROM. U.S. Microsoft, 1996 .

George Washington Essays (142 words) - Smallpox Survivors

George Washington Essays (142 words) - Smallpox Survivors George Washington George Washington was one of the best leaders to ever live on this Earth. We all know that he was the first president and that tells us right away he was great. As a Virginian from Pope's Creek, Washington was responsible for many things, including keeping us out of war. Washington was not a man for fighting, but when he had to, he got the job done. His technique was to wear out his enemies and get them when they were tired. No matter how big the rival's army was, Washington never gave up. The day of December fourteenth, seventeen-ninety-nine, was the day he lost his first war to laryngitis. His last words, which were "tis well," will always be remembered. There will never be another hero like him to ever live. By: Tom Maltese

To Build a Fire by Jack London analyze Essay Example | Topics and Well Written Essays - 750 words

To Build a Fire by Jack London analyze - Essay Example Various literary devices such as repetition, flashback and irony help reveal the idea that the man in the story is foolish and that his foolishness leads to his death. Repetition is one of the most obvious literary devices employed by London in order to somehow instill in the reader that the man in the story persists in being stubborn about not heeding the repetitive instructions that nature gives him. One of the most recurring statements in the story is â€Å"It certainly was cold† (London). This particular line appears several times throughout the story, is repeatedly rephrased in many parts, and is portrayed in such vivid imageries of cold. One line that particularly refers to this recurring coldness is â€Å"Once in a while the thought reiterated itself that it was very cold† (London). This particular repetition actually serves as a constant reminder for the man in the story to stop or turn back lest it should be too late to avoid death. Nevertheless, the man goes o n and even thinks that the idea of the cold is funny and that trying to survive it is ridiculous: â€Å"What were frosted cheeks? A bit painful, that was all; they were never serious.† (London) Another instance of repetition that demonstrates the man’s folly is â€Å"Fifty degrees below zero was to him just precisely fifty degrees below zero† (London). This particular line shows how literal the man can get when it comes to interpreting the cold temperature. He knows that it is in fact cold but despite the repeating thoughts of coldness, he remains â€Å"without imagination† (London) and he cannot see through the â€Å"significances† of things. (London) Another particular instance of repetition that abounds in the story is found in the following line where the words â€Å"below† and â€Å"zero† are repeated several times somehow for the purpose of reminding this stubborn man that he must either turn back or die: â€Å"In reality, it w as not merely colder than fifty below zero; it was colder than sixty below, than seventy below. It was seventy-five below zero. Since the freezing-point is thirty-two above zero, it meant that one hundred and seven degrees of frost obtained.† (London) Still, the following line with the word â€Å"cold† repeated four times is one more instance where the author finally hints that the man’s foolishness perhaps run in the blood because somehow he has repeatedly ignored nature’s warnings: â€Å"This man did not know cold. Possibly all the generations of his ancestry had been ignorant of cold, of real cold, of cold one hundred and seven degrees below freezing-point.† (London) Moreover, it is also possible that the repetition in the story has the purpose of achieving a sort of â€Å"hypnotic impact† and to â€Å"produce a mood that is at once somber and sinister† (Labor & Hendricks). The idea of coldness repeated several times in the aforemen tioned lines somehow help create this â€Å"somber and sinister† mood, and may even foreshadow the cold death that the man is to experience toward the end of the story. There is also a hint of irony embedded in this repetition. The repetitive mention of the word â€Å"cold† and the other elements of cold somehow â€Å"reinforce the irony of the man’s failure to recognize [the cold’s] ‘extended’ reality† (Pizer). In short, the irony is that regardless of the fact that the

Public Administration;managing sustainable communities. Midterm exam Essay

Public Administration;managing sustainable communities. Midterm exam - Essay Example This organic kind of development was to accommodate 30,000 citizens within roughly 6,000 acres. A major transport route connected to every division. Stops were situated within the heart of activity, linking each region. Government structures were held within special consideration and they were provided with the locations that seemed or were believed to be the most prominent and easy access. Ebenezer Howard is the founder of Letchworth Garden City and the Garden City movement. In the year 1898, Ebenezer Howard was disgusted at the very distasteful living and functioning conditions within the belatedly 19th Century cities and municipalities. He wrote a manuscript outlining his notions for a totally new system of livelihood. The paperback, Tomorrow, A Peaceful Path to Real Reform, was afterward published again as Garden Cities of Tomorrow in the year 1902. According to McKenzie (1996), Howard envisioned building his Garden City from scratch on an undeveloped six-thousand-acre plot of land. At the center would be a city one thousand acres in area, along with roughly one-and-one-half within diameter. The city is depicted as circular, and crossed from center to circumference by six wide boulevards. At the center would be a five-and-one-half-acre Central Park surrounded by public buildings such as the town hall. Around this park would run a circular Crystal Palace, a glass arcade not unlike the modern shopping mall. Outside this arcade a series of circular streets lined with trees, houses, schools, and gardens would encircle the center. At the edge of the circular city would be the industries, the factories, warehouses, and coal and timber yards, all of which would face outward onto a circular railway encompassing the town and delivering goods to and from the city and its businesses. Outside this perimeter would be a five-thousand-acre belt of agricultural land that would be home to an additional two thousand people engaged in farming. This greenbelt,

Vibrating Sample Magnetometer (VSM)

Vibrating Sample Magnetometer (VSM) Robert Konstandelos Operation A sample is made to oscillate using a vibrational unit extended on a rod. The sample is placed between two electromagnetic pieces which are used as the applied field for this this experiment. With the sample oscillating induces a voltage between the search coils which creates a signal to determine the magnetic properties of the sample. Reference coils are used to create a reference signal such that noise generated from the signal can be filtered using a lock-in amplifier [1]. Because the signal and the reference signal are directly related through its voltage and amplitude means that precise measurements can be recorded using a voltmeter. Calibration methods are important to determine the relation between the voltages induced by the magnetic field and the sample and their magnetic properties. Calibrating the applied field is done by increasing the voltage in steps measuring the field until reaching a maximum. The system is calibrated using a nickel standard normally as a number of vo lts per unit of magnetic moment. Many materials such as types of barium ferrite or alnico materials can be placed inside to determine properties. These properties include remanence, coercivity, intrinsic coercivity and operating points once the system has been calibrated. Advantages and Disadvantages in terms of experimental facets The key advantage is the precision and accuracy of VSMs. Taking measurements at a range of angles once detection arrangements for the coils have been devised can be done. The advantage of sample vibration perpendicularly to the applied field can be found once the detection coils have been arranged appropriately. This means that there is the ability to test the sample at different angles. The positioning of the coils are done in a way to reduce the effects of sample position variation and external field variation- essentially deep into the applied field shown in figure 1. Disadvantages are that they are not well suited for determining the magnetisation loop or the hysteresis curve due to the demagnetising effects of the sample. Another problem is that, particularly for the VSM used in the third year laboratory is that temperature dependence cannot be controlled. Figure 1. A schematic layout of the VSM 2. B-H Hysteresis Loop Tracer Operation The B-H hysteresis loop tracer is essentially two coils, one with a sample and the other which is empty for comparison. The insertion of a sample into the pickup coils causes a voltage proportional to the rate of change of the vector field to occur across the difference amplifier. After passing through an integrator, a voltage proportional to the intrinsic induction is passed to the Y-amp of the oscilloscope. This voltage combined with an X-voltage representing the magnetising field generated from the solenoid without the sample results in the generation of a hysteresis loop on the oscilloscope. Calibration is through a balance and phase adjustment to establish a trace on the oscilloscope. They are done to make sure that the magnetising field is linear and that every vector corresponds to the applied field. Measurements for the magnetic properties can then be made. Advantages and disadvantages in terms of experimental facets The coils have the ability to heat the sample such that temperature variance can be observed in the way that the material behaves when influenced by a magnetic field. On the other hand, this could cause overheating of the system which could result in a failure. Using a BH-looper can give the user a more improved visualisation compared to a VSM of the way a material behaves. The values plotted on the scope are only proportional to the absolute values, therefore display yields qualitative not quantitative information about a material magnetic properties. The precision is generally low compared to a VSM. Because a hysteresis loop is viewed using an oscilloscope means that observations of whether the material is a soft or hard magnetic material. And this is why it is used in quality control testing industries like the control of ferromagnetic oxides in a magnetic tape factory. Figure 2. A schematic layout of a BH loop tracer [2]. 3(I) Difference between concepts of Vector Field B, Magnetisation M and the magnetising field H The vector field B represents the magnetic induction. Magnetisation M is the magnetic moment per unit volume of a solid. Magnetising H field is the magnetic field strength. These three quantities are related by the equation. With ÃŽ ¼0 being the permittivity of free space. To show the difference between these quantities, hysteresis loops for a magnetic material shown in figure 4 are used. One of the key differences shown is that the magnetisation saturates whereas the B field increases at a constant rate for certain values for H. The magnetisation is generated by the spin and the orbital angular momentum of electrons in the solid. H is generated outside the material by electrical currents[3]. Therefore, from the equation above, the B field is the combination of H and M which shows the difference between the quantities with the inclusion of the permittivity of free space. A way to show the difference between the 3 parameters is through the representation of a bar magnet in a magnetic field shown in figure 3. Unfortunately, due to the age of the diagram, the labels are a bit old. Hence the ‘True’ field denotes the vector field B and the Applied field represents the magnetisation M. However, the arrows represent the direction and strength of each parameter. It is clear from figure 3 that the Magnetisation is much stronger than the demagnetising field. Figure 3 An example of a magnet being demagnetised in an applied field From figure 4, the two sketches representing of B and M against H can give an understanding of other magnetic properties of the material. The curve on the left can show the saturation of the magnetic material as well as the remanence Mr the remaining magnetisation after the applied field has been turned off. The right hand diagram can show the remanent induction Br and the saturation point of the applied field. In terms of the difference between the parameters, M, B and H, they yield different properties of the material in question. Figure 4 Hysteresis loops showing (a) M and (b) B field against H 3(II) The difference between the susceptibility and relative permeability The relative permeability ÃŽ ¼r and susceptibility χ are very closely related as shown by the equation below: The relative permeability represents a characterisation of magnetic materials. Paramagnetic or diamagnetic materials have permeabilities close to the permeability of free space. However for ferromagnetic materials, the permeability is large in comparison. It represents a multiplication factor. For example, the use of an iron core with a relative permeability is 200 times greater than just an air coil used. So this is a measure of the actual magnetic field within a ferromagnetic material. Susceptibility is a measure to an extent to which a material may be magnetised in a magnetic field. It represents a ratio of how much a material is magnetised compared to the applied field on that material [4]. So the susceptibility specifies how much the relative permeability differs from one as shown in the equation above. References [1] Foner S 1959 Versatile and Sensitive Vibrating-Sample Magnetometer* Rev. Sci. Instrum. 30 548–57 [2] Howling D H 1956 Simple 60-cps Hysteresis Loop Tracer for Magnetic Materials of High or Low Permeability Rev. Sci. Instrum. 27 952 [3] Jiles D 1990 Introduction to Magnetism and Magnetic Materials (Chapman and Hall) [4] Magnetic Susceptibilty http://www.britannica.com/EBchecked/topic/357313/magnetic-susceptibility

Ethical Issues in Oroonoko: Slavery

For years, man has illustrated his willingness to perform injustices to those weaker than he. From the bully in the schoolyard, to the king and his court, it seems that man has a desire to control and dominate others. Oroonoko, by Aphra Behn, illustrates that slavery is unethical, humiliating, demoralizing, and worse than death. Oroonoko is a powerful story about the tribulations of a gallant prince named Oroonoko. Throughout the novel, he is shown to be a brave prince and a friend to many. He is given command over an army and shows his military and strategical prowess by winning his battles and conquering his enemies. In the beginning of the novel, the prince presents Imoinda, the daughter of his foster father, with a gift of slaves that had been captured in his victorious battles. For Oroonoko, slavery was accepted and part of his daily life. However, in the novel, Behn presents slavery as a controversial and central issue towards the downfall of Oroonoko. Is it ethical to enslave another human and own them like a piece of property? What does the novel say about an issue such as slavery? The book, in fact, condemns this type of horrific behavior. She illustrates this issue by showing that slavery is demoralizing and humiliating to the people who are involuntary subjected to this kind of torment. In the beginning of the story, Behn describes the native people of Surinam, a colony in the West Indies, as beautiful, respectable, and friendly. Behn says, â€Å"for those we live with in perfect amity, without daring to command ‘em; but, on the contrary, caress ‘em with all the brotherly and friendly affection in the world. † The natives are very useful to immigrants who came from other areas of the world into Surinam. Behn thought of them as being helpful because she could learn their culture and their everyday style of life. Behn finds it, â€Å"Necessary to caress ‘em as friends, and not to treat ‘em as slaves. † Here, Behn says that treating the people of Surinam as slaves is improper and immoral. She says that friends should not be enslaved because they are helpful and caring. Through this effect, Behn considers slavery as an unethical issue. In the novel, Behn displays slavery as an issue that is associated with misery and torment. This occurs when the prince encounters the English captain who deceitfully places Oroonoko and others in captivity. Oroonoko is portrayed in a state of suffering when he is enslaved, â€Å"We were no sooner arrived but we went up to the plantation to see Caesar; whom we found in a very miserable and unexpressable condition; and I have a thousand times admired how he lived in so much tormenting pain protesting our innocency of the fact, and our abhorrence of such cruelties. † While Oroonoko is at the plantation, his attitude is different from when he was the commander of the army. He is miserable, sad, and in a position with less power than he had before. In conjunction with the misery that is involved with slavery, the actions that coincide with a slave such as whippings are also condemned in the novel, â€Å"No, I would not kill myself, even after a whipping, but will be content to live with that infamy, and be pointed at by every grinning slave. † Behn depicts a slave as someone one who is mentally and physically humiliated. In general, public humiliation is and torment is an unethical issue and Behn’s portrayal of misery, humility, and torment proves that slavery is immoral Oroonoko. In Oroonoko, Behn creates a mindset that favors death over slavery. One situation in the novel where slavery is condemned is when the king threatens to send Imoinda off to another country to be sold as slaves. â€Å"He ought to have had so much value and consideration for a maid of her quality as to have nobly put her to death, and not to have sold her like a common slave; the greatest revenge, and the most disgraceful of any, and to which they a thousand times prefer death. † She states that slavery is the perfect revenge against someone who has deceived another. The king orders, that â€Å"they should be both sold off as slaves to another country, either Christian or heathen, ’twas no matter where. This cruel sentence, worse than death, they implored might be reversed. † After constantly repeating the idea of someone preferring death many times over slavery in the novel, Behn shows the reader that slavery is unethical. In conclusion, Behn shows that enslaving a friend is wrong, and that slavery brings about humiliation, torture, and grief. Behn uses the morbid effects of slavery to the extent when she categorizes slavery as being many times worse than death. Using these techniques, Behn gives an immoral connotation to slavery in Oroonoko.

History and Description of a Subordinate Group Member Essay

Throughout the history of North America, there has been one ethnic group who has given up almost everything to the European settlers. Land, home, resources, and dignity were stolen from Native Americans. The long history of the American Indian is being written, even today. Approximately forty thousand years ago, the earliest ancestors of Native Americans migrated across the Bering Strait from Asia on pack ice (Hoerder, 2005). The population rose steadily, and by the time the first substantial settlement of Europeans was established in the New World, Native Americans lived throughout the continent. In the search for more farmland, European immigrants quickly pushed the native population out of their traditional homelands. This migration began the crowding of other native bands, forcing eastern natives to move beyond the Ohio River, thus starting a series of relocations for the Native Americans that continued through the next two centuries. Less than fifty years after the end of the American Revolution, many of the tribes in the northeastern United States sold their land under pressure from the newcomers. Before 1850, these natives migrated west of the Mississippi River. If you traveled to Oklahoma today you would find the same bloodlines that once roamed the New England hills (â€Å"Indians† The Reader’s Companion to American History, 1991). Wanting to live apart from the natives and expecting them to remain controlled, reservations were established, including an Indian Territory (est. 1825) in present-day Oklahoma. The Indian Removal Act of 1830 was enacted to populate these newly established areas. President Jackson ordered the forced migration of Native Americans from multiple southeastern tribes. Approximately 4,000 Cherokee Indians perished in 1838-1839 on their 800-mile march, or during their succeeding internment. This tragic event has become known as the â€Å"Trail of Tears†. (American Indian Policy, 2002) Trying to â€Å"Americanize† instead of segregate the Indians, in 1887, Congress passed the Dawes Act, which broke up reservations and gave land to individual Indian families. The idea of the Dawes Act was to assimilate Indians by giving them land from which they could profit. What followed were laws, over the next few decades, which dissolved tribal governments and placed Native Americans completely under the jurisdiction of U.  S. laws (American Indian Policy, 2002). The reservation system is one distinctive aspect of the Native American culture that materialized from their relationship with other Americans. The United States has 310 reservations within its borders. The federal government owns 298 reservations and 12 belong to the states in which they are located. A total of 437,431 Indians resided on reservations or trust lands. That is approximately 22 percent of the Native Americans defined by the 1990 census (Shumway & Jackson, 1995). The United States has proven itself unreliable on its policies and treatment of Native Americans. The government teeters between a policy of segregation, under which Indians are treated as a self-sustaining culture, and assimilation policies, which try to integrate Indian and European cultures. The United States acknowledged Indian sovereignty and established treaties with them. Unlike foreign nations, Indians shared the continent with the quickly growing nation who needed resources, and were quick to form treaties, giving Indians land rights and territorial sovereignty but repeatedly found ways to revoke those privileges.