Free Essays on Aztec Indians

My second paper will be on the Aztec Indians, who are known for their domination of southern and central Mexico. They ruled between the 14th and 16th centuries. They built a great empire and developed very modernized ways of doing things. They had phenomenal architectural skills and waterway systems. The Aztec Indians also had very developed social class and government systems and practiced a form of religion. To begin with, the Aztecs were very skilled in the art of Architecture and waterway systems. â€Å"An example of the monumental architecture within the Aztec society is the great pyramid of Tenochtitlan. Montezuma I, who was the ruler of the Aztecs in 1466, created it. The pyramid was not finished until the rule of Montezuma II, around 1508†(Carrasco, Montezuma Mexico, Pg. 49). â€Å"Aztec cities and towns also had working drinking water and waste treatment systems. An intricate plumbing system using clay pipes ran down from the mountains around Mexico valley to all of the towns and cities in the valley. As the water ran into each town or city it was the dispersed to 10 or 12 places around town were it flowed into a pool for drinking water or was piped into public baths and toilets. Only nobles had working drinking and bathing systems with running water in their homes. The sewage system worked much like today, having human wastes carried to a collection pool where solids were collected, and then having liquids run off into a series of terraces which filtered the water. Solid wastes were allowed to sit in a collection pool for about six months and then were brought to the lake gardens to be used as fertilizer†(Jennings, Aztec, Pg. 220). â€Å"The Aztec social structure contained four well defined classes. At the bottom of the heap were slaves and serfs, or the Tlacotli, who worked the private lands of the nobility. Next came the Macehualtin, ‘the fortunate,’ as they were called because they were equally free of the heavy respon sibi... Free Essays on Aztec Indians Free Essays on Aztec Indians My second paper will be on the Aztec Indians, who are known for their domination of southern and central Mexico. They ruled between the 14th and 16th centuries. They built a great empire and developed very modernized ways of doing things. They had phenomenal architectural skills and waterway systems. The Aztec Indians also had very developed social class and government systems and practiced a form of religion. To begin with, the Aztecs were very skilled in the art of Architecture and waterway systems. â€Å"An example of the monumental architecture within the Aztec society is the great pyramid of Tenochtitlan. Montezuma I, who was the ruler of the Aztecs in 1466, created it. The pyramid was not finished until the rule of Montezuma II, around 1508†(Carrasco, Montezuma Mexico, Pg. 49). â€Å"Aztec cities and towns also had working drinking water and waste treatment systems. An intricate plumbing system using clay pipes ran down from the mountains around Mexico valley to all of the towns and cities in the valley. As the water ran into each town or city it was the dispersed to 10 or 12 places around town were it flowed into a pool for drinking water or was piped into public baths and toilets. Only nobles had working drinking and bathing systems with running water in their homes. The sewage system worked much like today, having human wastes carried to a collection pool where solids were collected, and then having liquids run off into a series of terraces which filtered the water. Solid wastes were allowed to sit in a collection pool for about six months and then were brought to the lake gardens to be used as fertilizer†(Jennings, Aztec, Pg. 220). â€Å"The Aztec social structure contained four well defined classes. At the bottom of the heap were slaves and serfs, or the Tlacotli, who worked the private lands of the nobility. Next came the Macehualtin, ‘the fortunate,’ as they were called because they were equally free of the heavy respon sibi...

The Basics of Telescopes

The Basics of Telescopes Sooner or later, every stargazer decides its time to be buying a telescope. Its an exciting next step to further exploration of the cosmos. However, as with any other major purchase, theres a lot to learn about these universe exploration engines, ranging from power to price. The first thing a user wants to do is figure out their observational goals. Are they interested in planetary observing? Deep-sky exploration? Astrophotography? A little of everything? How much money do they want to spend? Knowing the answer to those questions will help narrow down a telescope choice. Telescopes come in three basic designs: refractor, reflector, and catadioptric, plus some variations on each of the types. Each has its pluses and minuses, and of course, each type can cost a little or a lot depending on the quality of the optics and the accessories needed.   Refractors and How They Work A refractor is a telescope that uses two lenses to deliver a view of a celestial object. At one end (the one farther away from the viewer), it has a large lens, called the objective lens or object glass. On the other end is the lens the user looks through. It is called the ocular or eyepiece. They work together to deliver the sky view. The objective collects light and focuses it as a sharp image. This image gets magnified and is what the stargazer sees through the ocular. This eyepiece is adjusted by sliding it in and out of the telescope body to focus the image. Reflectors and How They Work A reflector works a bit differently. Light is gathered at the bottom of the scope by a concave mirror, called the primary. The primary has a parabolic shape. There are several ways the primary can focus the light, and how it is done determines the type of reflecting telescope. Many observatory telescopes, such as Gemini in Hawaii or the orbiting Hubble Space Telescope  use a photographic plate to focus the image. Called the prime focus position, the plate is located near the top of the scope. Other such scopes use a secondary mirror, placed in a similar position as the photographic plate, to reflect the image back down the body of the scope, where it is viewed through a hole in the primary mirror. This is known as a Cassegrain focus.   Newtonians and How They Work Then, theres the Newtonian, a kind of reflecting telescope. It got its name when  Sir Isaac Newton dreamed up the basic design. In a Newtonian telescope, a flat mirror is placed at an angle in the same position as the secondary mirror in a Cassegrain. This secondary mirror focuses the image into an eyepiece located in the side of the tube, near the top of the scope. Catadioptric Telescopes Finally, there are catadioptric telescopes, which combine elements of refractors and reflectors in their design. The first such telescope was created by German astronomer Bernhard Schmidt in 1930. It used a primary mirror at the back of the telescope with a glass corrector plate in the front of the telescope, which was designed to remove spherical aberration. In the original telescope, photographic film was placed at the prime focus. There were no secondary mirror or eyepieces. The descendant of that original design, called the Schmidt-Cassegrain design, is the most popular type of telescope. Invented in the 1960s, it has a secondary mirror that bounces light through a hole in the primary mirror to an eyepiece. The second style of catadioptric telescope was invented by a Russian astronomer, D. Maksutov. (A Dutch astronomer, A. Bouwers, created a similar design in 1941, before Maksutov.) In the Maksutov telescope, a more spherical corrector lens than in the Schmidt is utilized. Otherwise, the designs are quite similar. Today’s models are known as Maksutov –Cassegrain. Refractor Telescope Advantages and Disadvantages After initial alignment, which is necessary to have the optics work well together, refractor optics are resistant to misalignment. The glass surfaces are sealed inside the tube and rarely need cleaning. The sealing also minimizes effects from air currents that can muddy the view. This is one way that users can get steady sharp views of the sky. Disadvantages include a number of possible aberrations of the lenses. Also, since lenses need to be edge supported, this limits the size of any refractor. Reflector Telescope Advantages and Disadvantages Reflectors do not suffer from chromatic aberration. Their mirrors are easier to build without defects than lenses are since only one side of a mirror is used. Also, because the support for a mirror is from the back, very large mirrors can be built, making larger scopes. The disadvantages include ease of misalignment, the need for frequent cleaning, and possible spherical aberration, which is a defect in the actual lens that can blur the view. Once a user has a basic understanding of the types of scopes on the market, they can focus on getting the right-sized one to view their favorite targets with. They can learn more about some mid-range-priced telescopes on the market. It never hurts to browse the marketplace and learn more about specific instruments.  And, the best way to sample different telescopes is to go to a star party and ask other scope owners if theyre willing to let someone take a look through their instruments. Its an easy way to compare and contrast the view through different instruments. Edited and updated by  Carolyn Collins Petersen.

Airline Business Coursework Example | Topics and Well Written Essays - 2500 words - 1

Airline Business - Coursework Example u-Taieh (2011: p58) notes that while an airline may put together the best management team and business plan, failure to access sufficient funding and finance makes short term success of the airplane impossible. At present, start-up capital required to finance the working capital needs is readily available by historic standards, specifically if the project is right for investors. This paper analyse possible sources of funding for an investor seeking to launch an airline start-up, while also discussing the advantages and disadvantages of the different sources of funding. Moreover, the paper will seek to identify factors that investors are likely to consider prior to evaluating funding requests. One source of funding that an airline start up could use is a direct lending. In this case, an airline could decide to take out an unsecured or secured loan as working capital but more specifically to purchase commercial aircraft (Wynbrandt, 2014: p47). Moreover, the airline start-up may receive a loan for a syndicate of banks since the transaction may be quite large. Since commercial aircraft costs could reach several hundreds of millions of dollars, security interest accompanies most aircraft purchase direct lending, which means that the loaning bank could repossess the aircraft if the start-up fails to pay back the loan. Generally, obtaining private financing that is unsecured to purchase an aircraft is very difficult unless the airline start-up is considered especially creditworthy. Still, there are some governments that use the Large Aircraft Sector Understanding to fund exports of aircraft produced domestically, an agreement is providing for aircraft purchase financing at clos e to 175 points for ten years over the prime rate (Wynbrandt, 2014: p47). In addition, there is also an option for the start-up airline to lock interest rates in up to twelve weeks before receiving the loan. Such terms tend to be more attractive for start-up airlines, rather than large operators,

The Iran-Iraq War of the 1980s.Whom did the U.S Support what Role did Essay

The Iran-Iraq War of the 1980s.Whom did the U.S Support what Role did They Play - Essay Example As a result, many of the people living along the channel were Arabs, not Persians. Sadaam Hussein, the leader of Iraq, claimed that this area should be a part of his country because of the historical connection to Iraq and the ethnic identity of the inhabitants. Iran saw right through this and accused Iraq of trying to control the shipping lanes. Iraq began to charge tolls on ships coming out of the channel, but the Iranian’s would not comply (Willett, 2004). Iraq invaded and tried to take over the land on either side of the river. This was one economic reason for the war. The second economic reason Iraq started the war was to try to get at Iran’s oil reserves. They realized that if they could control this much oil, they would become the most powerful and important Arab state along the Persian Gulf. They would be a rival to the powerful Saudi’s to their south and would be able to easily trade with Russia and India to the east. Iraq wanted to get their hands on Ir anian oil. This was the second economic reason for the war. One ideological reason the war started came from the Islamic Revolution in Iran in 1979. Iran is a country dominated by Shiite followers of Islam. In many countries, including Iraq, Shiites are considered to be second-class citizens. They only make-up about 10% of Muslims worldwide, so they are often a persecuted minority. In Iraq and Iran, Shiites are actually a majority. The Iraqi government suppressed the majority Shiites. The Islamic Revolution in Iran started to encourage Shiites in Iraq to rise-up against the government (Arjomand, 1989). This revolution said that it was up to Shiite believers to rise up and take power so Islam could be taken to all the world. The Iraqi’s did not like this, so they started to protest against the Iranians to the League of Arab States. Nothing was resolved. The ideology of Islamic Revolution was a major factor in the start of the Iran-Iraq War. Another ideological reason that led to the Iran-Iraq War was the capture of the islands of Abu Musa, Greater and Lesser Tumb (Amirahmadi, 1996). Persian and Arab forces had disputed these islands for many years. The Iranians took them from the newly formed United Arab Emirates in 1971. Arabs in the Persian Gulf region regarded this as a modern version of Persian aggression. Iran had stated in the past their ideological desire to restore the borders of the old Persian Empire. Iraq started a war with Iran in response to this ideology. The United States had an important role in this conflict for both Iran and Iraq. Before the Islamic Revolution in Iran, the leader of Iran bought lots of weapons such as tanks, artillery and fighter jets from the United States. During the revolution, American citizens were held hostage in the American embassy in Tehran. This event caused the United States to cut off all trade ties with the Iranians. The United States refused to supply the Iranians with machinery and replacement parts for t heir equipment during the war. As a result, the Iranian army was weakened until they could figure-out a way to buy weapons from other countries. They eventually turned to Russia for much of their weapons. The United States was more directly involved in supplying the Iranians with weapons (El, Azhary, 1984). Iraq had grown wealthy from oil revenue. They decided to spend lots of money on jets, tanks and bombers. The United Stat

Research Paper on Paul Robeson Example | Topics and Well Written Essays - 1250 words

On Paul Robeson - Research Paper Example Paul had three brothers and one sister and during their childhood life, they faced many problems since his father lost his job due to racial conflict and three years later, his mother died in a fire tragedy at home. In his high school life, Paul participated in many activities such as basketball, football and singing and he dominated very well in all the disciplines. Boyle and Bunie (45-77) said that, after graduating from high school, Paul won a scholarship to join Rutgers University between 1915 and 1919 and became the third African- American students in the history of Rutgers University. In the campus, Paul joined various clubs among them being debate club, a university football club and other athletic clubs where he balanced his activities excellently. He scooped an awarded as the best footballer of the year and he had a great talent in singing whereby he went to perform on and off the campus. At the height of his performance on the campus, Paul’s father felt very ill and Robeson had no option but to take the full responsibility of his father who soon succumbed to illness. When he finished campus, he won awards in athletics and academics and his classmates greatly exhorted him and vowed to fight equality of all Americans. Boyle and Bunie (78-101) claimed that, Robeson then joined New York university school of law but shortly transferred to Columbia school of law in 1920 and joined national football league. Paul dated Eslanda Goode and after courting for one year, they got married and at this time, he had already started acting. He started singing while in the campus and after 1922 he ended his football career and decided to continue with his music career. After a few months, Paul graduated as a lawyer and he exercised his career as an advocate for a few months and quitted due to excessive racism in the field. Robeson decided to take a role in acting where he participated in various theatre acting and during this time, his wife Essie supported him in various social functions. He acted in theaters such as The Emperor Jones and in All God’s Chillum Got Wings and the success of acting landed him into an elite circle and finally rose to fame after a great assistance from his wife. Later his wife quitted her job and became an agent of Paul her she steered him to act in the films and he participated in movies such as body and soul. Paul ventured into music and in collaboration with a very famous gospel singer and attended concerts. After some time, Paul went to London to act in the films and singing and at this time, he participated in several films among them being Show Boat and Song of Freedom (Boyle and Bunie 102-105). He became politically involved when he struggled against fascism from 1937 to 1939 during the Spanish civil war. After Second World War, Robeson returned to America where he acted as an entertainer in a radio station. After execution of four Negros, Paul Robeson urged the president of America to stop legislati on of this law of lynching and this was his turning point to the political arena (Boyle and Bunie 379-401). After 1950, the American government cancelled Robeson’s passports, it also denied him to attend televisions shows and a

VICA - Enjoy the difference Company Essay Example | Topics and Well Written Essays - 4750 words

VICA - Enjoy the difference Company - Essay Example From this research it is clear that VICA - â€Å"Enjoy the difference† Company is keen to check the profit and losses incurred by the company. Focus on the workers’ demands is among the company’s major concerns, to develop a rapport between the management and the workers as well as, keep the company on its toes. The target group of the company’s City car falls below 25years while the Large car is persons between the ages of 41-55years. On the part of the City car the vehicle is suitable for short distances, and is affordable for the youngsters. On the other hand, the large car is suitable for the old people who require carrying luggage of varying sizes and moving over long distances. In the first round, the researcher’s group selected the City car and the Large car to be a man product. They found out the City car to be of low price, high volumes and makes the most profit. The group attempted to categorize the different characteristics of the target market. In terms of the City and large cars, the researcher’s group put in focus attributes of comfort, safety, speed, technology and style of the car. The reasons behind the selection of these attributes is that is the age group under the age of 25 years are more concerned with safety, style and technology of the make of the car. Contrary, the age group between 41- 55 years prefer a car that is comfortable, has a sense of style and high technology. In Round 1, the market share was designed in such a way that, it would target 1% of the City and Large cars. However, it proved extremely tasking to fit in the new market, with the competition posed by the gurus. The Company embarked on a mission to produce Citizen-the City car and Lugano- Large car. The two makes of vehicles incorporate a large percentage of the market share that contributes greatly to Round 4. In this round, there indicated a great deal of drop in the market share of the Citizen to 0.95% and Lugano, 1.39%. By th e end of the first year, the Citizens cars stood at 53,300 while Lugano’s was 40,950. The gross margin was 14.52% and 27.46% for Citizen and Lugano respectively. The drop indicated after the first round stood at 9.09% and 1.59% correspondingly. The reason behind this occurrence is the fact that, the number of vehicles selected by the target groups was slightly higher than what had been budgeted for in the earlier

The Rookie Chief Information Security Officer Term Paper

The Rookie Chief Information Security Officer - Term Paper Example The human resource management department, finance department and operation department should present the security challenges faced (Cullen, 2011). IT Compliance Officer, Security Officer, Privacy Security Personnel and IT Security Engineer should also present the problem faced in their daily duties. The report from each office and department should be presented to the Chief Information Security officer for evaluation. Security manager and CISO will use the report to implement policies and procedures, which will ensure sufficient security in the organizations. After evaluation of the report, they will recommend the applicable points and do away with points which will not lead to improvement of the security. They will apply professional ethics and come up with other policies left by the departments. After completion, they will forward the draft to the General Manger. The GM will forward to the Board of Directors who will hold a meeting with the Security Manger and CISO to evaluate each policy and procedure. After evaluation, the board of directors will sign the draft for approval. Then the security department will ensure that each employee in every department has a copy or is aware of the policies. Security department will also ensure sufficient training to all departments to create awareness of security policies to each employee. The employees will help in reinforcing the policies (Neil, 2009). ii. Reporting Structure Chain of command will ensure smooth running of the organization. Each employee will be reporting to the person next in command. The organizational chart above represents the reporting channel. Security guarding and escort services will be provided by a contracted guard force. Guard will provide physical security services, public relationship services and patrol and escort services. Guards will ensure sufficient security for the organization’s asset and employees. They will provide assistant to customers visiting the organization by showing t hem location of offices. The guards will be managed by their supervisor who will report directly to the Security Officer. Security Officer will be responsible for maintenance of physical security. He/she will ensure that the contracted guard force maintains discipline and ethics (Mark, 2007). He will also check and record the available assets each day and carry out investigation in case of theft. Security officer will report direct to the CISO. The IT Security Engineer and the IT Security Compliance Officer will work to ensure that the information technology devices are maintained. They will ensure the hardware and software are maintained. They will evaluate the effectiveness of each device. They will provide a report in case of damage, loss and change of devices. They will report direct to the CISO. The Privacy Security Professional or the Investigation Officers will investigate theft, fraud and employee dishonest. They will carry out investigation in case of asset theft, cash thef t by employees and misconduct of the employee (Neil, 2009). In case of conflict between the employees, the investigation officer will carry out an inquiry to establish the source of the problem. Privacy Security Professionals will report direct to the CISO. The CISO will report to the Security Manager. The Security manager will be respons