Human evolution Essay Example for Free

Human evolution Essay Australopithecus apheresis separated humans directly from other primates because they walked upright. There is a huge evolutionary connection between brain size and bipedalism, Australopithecus and our other ancestors brain size was increased because of a change in their diets. Before, our relatives were strict herbivores until they became bipedal and ate meat because it was more available. Which meant that our early ancestors had to run to catch there food, thus increased their brain size because their brains were used eating vegetables. Natural selection has played an important role human evolution. Mutations and natural selections such as change in pigmentation and bacteria inside our body have to help us survive. Random mutations occur in our DNA that can befit, harm or do nothing. Natural selection happens in evolution to help our ancestors to adapt their surroundings. For instance, humans lost their body hair to free themselves of external parasites that infest fur. Over the time of evolution our ancestors body lost what it didnt need and kept what it need. As our ancestors started to move bipedal their body naturally selected to devolve there opposable toe. This was an advantage because our ancestors could run faster and have better alignment with their skeleton. Other natural selection happened over the time of evolution that devolved bodys and evolved bodies. The discovery of controlling of fire was the rising point of human evolution and culture, fires helped humans cook food and gives them comfort. According to James, Steven a Professional form the university of Chicago, the first clam for the earliest evidence of a controlled fire was by a member of a homo that dates back from 1. 7 million years ago. There is justified evidence that early humans behaviour and diet changed when they learned to control fire. The discovery of fire by early human let them say active in night-time hours. A professor from Harvard university claims as early human used fire for cooking food it also expanded and developed their brains because they were allowing more complex carbohydrates in to their bodies. Eating cooked food let our ancestors have more time for them because they were no longer trying to chew on a hard plant allay trying to gain calories from it. When our ancestors starts to cook their food their teeth, jaws, digestive traps and sexual consistencys started to shrink, all of these changes stated happening about 1. 8 million years ago, additionally this is more evident on the Homo erectus. As food became less of a concern to early human, weapons became more sophisticated. When early humans starts using tool evolution helped advance the development and size of their brains. Evolution gave our ancestors an advantage over chimpanzee, muscles that that chimpanzees lack. Humans have thicker fingers with wider heads, making it easier for humans to hold on to objects and throw them more accurately compared to chimpanzees hands. Although, hominid the australopithecine had small sized brains compared to the chimpanzee, they tried very often to cut through tough animal skin to take the meat of the bones, but this makes sense because the australopithecine was still a tree climbing animal. The great advance in stone tools happened around the time of the Homo erectus. The Homo erectus was the first of our ancestors to carry tools around, instead of dropping them after using them, like the australopithecines. Plus, the Homo erectus brain had grown over the time of evolution to three times the size on contrast to the australopithecines. As tools use evolved, communication and language was generated. As our ancestors more and more tools, their hands were occupied while they were hunting and couldnt use gesture so they evolved communication. In order for the early humans to survive, they need to co-operate. For instance, the group was sleeping and on human was chosen to stay awake and wants to wake the group up because a woolly mammoth was rear the group, that individual would need to explain what he wants the group to comprehend. The theory of Evolution is a justified and straightforward; it has been extensively studied and supported by all modern science. Creationism in my opinion on the other hand is completely a bunch of lies, faith does not give you answers, and it only asks you to stop asking question. There is no possible way to test creationism, there for believers accept it as the truth. DNA proves that all cells on earth are someway genetically related, for instance humans are 99. 8 the same genetic code as chimpanzees. Evolution happened over millions and millions of year. Creationism states that someone was told to searching out our planet for 8. 7 million place them aboard to Noahs ark. In my opinion I believe evolution didnt over night or the human race was created in one day by a supernatural being because it has been proving with our technology and our discoverys of fossil records that evolution happen because of natural selections. Creationism is for people that dont care about anthropology, sociology and phycology. People that believe in evolution usually are people that dont want go to church and believe in god. Religion celebrates death while evolution celebrates life.

Successes and Failures of Signals Intelligence :: essays research papers

SUCCESSES AND FAILURES OF SIGNALS INTELLIGENCE The United States must be prepared to deploy against sophisticated and unsophisticated adversaries on a moments notice. The enemy may have little concern for the Hague Convention, which seek to limit collateral damage and noncombatant casualties. Signal Intelligence provides foreign data that analysts can collect, process and analyze into intelligence information. Whoever has the ability to control and exploit the electromagnetic spectrum, which ranges from zero to infinity, will know their enemies vulnerabilities, create opportunities, achieve tactical surprise, and result in mission accomplishment. Considerations such as successful and unsuccessful collection in Signal Intelligence will be a tremendous factor in planning and the execution of U.S. military operations.   Ã‚  Ã‚  Ã‚  Ã‚   There are numerous accounts of the successful gathering of Signal Intelligence that prove to be of use. The rapid advancements in microelectronic technology forces the government to design and manufacture sophisticated new radars, airborne reconnaissance, and surveillance platforms; they offer superior capabilities over previously employed systems. Having accredited systems and networks, in accordance with Department of Defense guidance, will ensure that units are within regulations while collecting signals. To obtain the most beneficial information, analysts need to be properly trained in the latest and greatest data sets. Staffing 100% qualified personnel in strategic locations will lead to optimal performance in signals analysis; commanders should provide the capability of target redundancy with different forms to ensure that collection requirements are met. Lastly, understanding commander’s intent and the focus of effort are critical ingredients for su ccess. Despite the factors that lead to success, there are just as many failures, which need to be discussed. Failures are the temporary or possible permanent annihilation of the ability of a mechanism to perform its required purpose. The number one failure in signal intelligences is bureaucracy. All of the policies, guidelines, rules, procedures, course of actions, and laws, create so much red tape, that signal analysts cannot do their jobs, which is to collect, process, or analyze foreign intelligence information. Once the analyst work through the political rubbish, the opportunity for collecting Signal Intelligence may have disappeared. Units that try to use lethargic and robust radars against state of the art Electronic Security will provide marginal data if any; the Electronic Security provides firewalls, secure logins, and offers protection resulting from measures that are designed to deny unauthorized persons access to information. Some radars have the ability to use passive tracking , which means that there is no target illumination by the tracking system.

Samuel de Champlain

He was born in 1567 in Bourage, France. He was a Protestant who converted to Catholicism and fought In the religious war for King Henry VII. Samuel learned skills of sailing, navigation, and cartography at a young age. Champlain became a famous explorer and is known because he founded Quebec and a lot of Canada, which was New France at the time. In 1603 Champlain was invited by Francis Grave Du Point to sail and visit the River of Canada. He traveled to many places. They include; Montreal, Quebec, St.Lawrence River, and Tols-Rlvleres. While he was there he realized this land could be colonized and used in favor of France. He was fascinated by the Great Lakes, which he never knew about. Champlain was very curious about the people living there, the Huron Indians. After one year he sailed back to France. When Samuel got home he begged the king and queen of France to sponsor another voyage to Canada so he could stay longer and learn more. He also wanted to search Acadia, which we know no w today as Nova Scotia. There was belief that Acadia ad mines of riches such as gold and diamonds.Many also believed that if you went to Acadia you could find a new passageway to get to North America sooner. The king and queen agreed and let him sall along with Lieutenant-General Pierre de Monts as a geographer. After they sailed awhile on the caravel they landed docked at St. Croix River. It was winter and they had stayed in a very cold area. Most of their men died of scurvy, a disease where a body can't get enough vitamin C for awhile. However. some of them died from other diseases like serious cases of influenza and smallpox.They knew that they had to go somewhere warmer before everyone of their crew died. One year later the crew, what was left of them, used astrolabe and a compass to reach there way to Acadia. It wasnt everything he thought it would be. He never found the gold and diamond mines. However, he still found more and more places and learned a lot more about the countr y. He found out about Niagara Falls. He was so impressed he started to search more south to learn about America. Champlain was searching in the Cape Cod area and went to Marthas Vineyard.Even though he wasnt the first person to find Marthas Vineyard, two English men were, he took great notes and important facts about the land. He discovered more of Marthas Vineyard than them too. Samuel was named Lieutenant In 1608. He was able to be the leader on his next voyages. He stayed in New France for eleven years. The land was colonized and they made peace with the Indians. They signed a treaty stating that if the Huron Indians let the French have goods, Ilke fur, and stay on the land that the French would protect them and help them in war.They ran across one problem. England wanted the land too, even though the French have been there most of the time. In 1627, when Champlain returned from France after writing about his voyages, England went to war with the French for Canada. 1629 the Engli sh made the French surrender and leave. In 1632 the French came back and signed a treaty with the English that gave to be caused by something related to a stroke. He is known as one of the most famous explorers and has been remembered since the day he died,

My holiday †I visited Paris in France Essay

I visited Paris in France. When I there arrived I was astonished because the city seemed very modern ceque I did not await. She has seems very clean and she had aà ¯Ã‚ ¿Ã‚ ½galement a lot of different stores. On the way à ¯Ã‚ ¿Ã‚ ½mon hotel I traveled by the north of the France that seemed very silent. When I arrived to my destination I was very hour. It was very hot. The Trip I travelled by France. I had to go to Douvres. It was a long boring trip we left Douvres at 10 o’clock and arrived in France at twelve o’clock. Lodging I’S remained in a hotel with my family. I have partagà ¯Ã‚ ¿Ã‚ ½une room with my brother and my parents had a separated room. The hotel was situated close to the local city but it was again silencie ux and calm. The hotel had a swimming pool and the stores was very dear. My room was small it had a television and one bathroom. Activities of the day The day it was very hot thus I tried to do the activities that were interior. I played Badminton then I played au ping-pong that was very good. I also went swimming in the swimming pool in the hotel, after swimming I played mini-golf. Activities in the evening The evenings it did sometimes froid.La most of the time in evenings my family went out for a repas.Quand there was recreations we remained at the hotel because it was comedy and my younger brother really assessed demonstration. They etait drole but certain French à ¯Ã‚ ¿Ã‚ ½taienten. Equally my sisters participated in the spectacle our last one harms. Before we left went to do ourselves emplettes in the next city to do which quesachats. In order to view this essay, you either need to log in or contribute one your essays or courseworks. Please submit one of your own essays below to be taken the essay that you requested. Please make sure that you upload a complete coursework. If the coursework is not complete, you will be denied access to the essay that you are requesting.

Marxs ideas on Class Structur essays

Marx's ideas on Class Structur essays Sociology 1001 Assessment 2 Marx A 250 - word summary of Marxs conception of class (the basic ideas, their strengths and limitations). Marx, as a sociologist, used the idea of class within his work fairly extensively but often assumed the knowledge of his reader when it came to a definition. The lack of an actual definition of class by Marx, when it was so fundamental in much of his work was strange but he did write about the topic fairly extensively. Marx analysed class in relation to the means of production and the ownership of the capital. He looked at class by dividing the population into who owned property and who was propertyless, the capitalists and the proletariat. However class for Marx wasnt simply a division of income or functional positions in the labour force but he saw classes as a social force with the strength to change society. Marx thought that production was so important in the creation of class because it creates a hierarchy. In production, men not only act on nature but also on one another. He believed that classes were created when production involves a division of labour, which allows surplus production that can be appropriated by a minority group. In short I would take this to mean that classes are created on the back of exploitation. Marxs idea of class does have certain limitations in that there are positions within society that would be classless according to it. Although Marx recognised these groups he argued that they would disappear because they were just left overs from the pre capitalist days. However even now, around 100 years on, there would still be a certain number of, apparently, classless people. Also with the great emergence of the service sector within developed, and even developing, countries production, as Marx knew it, has changed extensively. Marxs idea of class do, however show a great significance ...

The Cons of Drilling for Gas by Hydraulic Fracturing Essay - 1

The Cons of Drilling for Gas by Hydraulic Fracturing - Essay Example The essay "The Cons of Drilling for Gas by Hydraulic Fracturing" talks about the hydraulic fracturing, an industrial process which is water intensive and is used to collect natural gas. And with the examples of multiple basins, the papers will present the environmental implications of hydrofracking in shale gas reservoirs. Before the man could reach the lower part of the crust, shallow wells were dug so as to get the gas. Hydrofracking is the latest method of extracting the gas and it has led to a lot of problems. First, the gases that come out are very poisonous and harmful to human consumption. The ecological imbalance that comes with the drilling process is also very harmful to nature and can lead to the imbalance of nature and all its recourses. Shale gas is the gas that is produced by the shale and there are two functions of the shale. It functions as the reservoir and as the source rock for the natural gas. Due to hydrofracking, many of the shale rocks are known to fracture and this leads to an imbalance in the ecosystem. Hydrofracking involves a lot of pressure that is used so as to bring the gas upwards. The high pressure is of importance and causes the gas to flow upwards, however, the high pressure also has a lot of environmental impacts. It weakens the rocks that are underground when this happens; the result is a weak underground rock structure. This can cause it to sink and hence lead to an earthquake. The main question here is the effect of hydrofracking on the environment.

Network Management Group and Individual Project Essay

Network Management Group and Individual Project - Essay Example My aim is to design and manage this infrastructure in such a way that this network provides intranet facility to staff of the three departments and internet facility for information site for public. The intranet for the three departments will provide the access to staff only, with the ability to access and download files, with each department having its own section of the intranet. It is my responsibility to select such services and tools that are helpful in facilitating the overall management of this web hosting process. I have conducted a detailed study for establishing Web Hosting Solutions for the Payland’s government. This report emphasizes on the quality of services for management of this project. Our team has got the project to upgrade the information services and web facility for the Payland’s government departments. In this project, I am responsible for the implementation and designing for the Web Hosting services for the given departments. We have to establish the department’s intranet that must be part of a whole company’s intranet. I have decided to establish several levels of information access for the staff that will provide the different access rights to the intranet; all this includes the rights criteria to the network administrators and other employees. In this process, we are going to host the official governmental website in which, potential growth is strongly expected, so we have to reserve adequate web space available for the potential growth of sites. We also keep in mind the expected access intensity of this site because thousand staff members and general public will access our network so we have to be concise regarding the choice of the bandwidth. Network security is also an important factor for this network so we have to incorporate the log in and network firewall facilities. So, it was a little background of my project, I have enlisted the main factors and requirements