Thursday, May 14, 2020
The Life of Astronomer Claudius Ptolemy
The science of astronomy is one of humanitys oldest sciences. No one knows quite when the first people looked up and began to study the sky, but we do know that very early people began noting the sky thousands of years in the past. Written astronomical records were recorded in ancient times, often on tablets or walls or in artwork. That was when observers began charting what they saw in the sky. They didnt always understand what they observed, but realized that the skys objects move in periodic and predictable ways. Claudius Ptolemy with an armillary sphere he used to predict solstice dates and other celestial sights. Public domain, via Wikimedia Commons. Claudius Ptolemy (often called Claudius Ptolemaeus, Ptolomaeus, Klaudios Ptolemaios, and simply Ptolemeus) was one of the earliest of these observers. He systematically charted the sky to help predict and explain the motions of the planets and stars. He was a scientist and philosopher who lived in Alexandria, Egypt nearly 2,000 years ago. Not only was he an astronomer, but he also studied geography and used what he learned to make detailed maps of the known world. We know very little of Ptolemys early life, including his birth and death dates. Historians have more information about his observations since they became the basis for later charts and theories. The first of his observations that can be dated exactly occurred on March 12, 127. His last recorded one was February 2, 141. Some experts think his life spanned the years 87 ââ¬â 150. However long he lived, Ptolemy did much to advance science and appears to have been a very accomplished observer of the stars and planets.à We get a few clues about his background from his name: Claudius Ptolemy. Its a mixture of the Greek Egyptian Ptolemy and the Roman Claudius. Together, they indicate that his family was probably Greek and they had settled in Egypt (which was under Roman rule) for some time before his birth. Very little else is known about his origins.à Ptolemy, the Scientist Ptolemys work was quite advanced, considering that he didnt have the types of tools that astronomers rely on today. He lived in a time of naked eye observations; no telescopes existed to make his life easier. Among other topics. Ptolemyà wrote about theà Greek geocentric viewà of the universe (which put Earth at the center of everything). That view seemed to quite nicely put humans at the center of things, as well, a notion that was hard to shake until Galileos time. Ptolemy also calculated the apparent motions of the known planets. He did this by synthesizing and extending the work of Hipparchus of Rhodes, an astronomer who came up with a system of epicycles and eccentric circles to explain why Earth was the center of the solar system. Epicycles are small circles whose centers move around the circumferences of larger ones.à He used at least 80 of these tiny circular orbitsà to explain the motions of the Sun, the Moon, and the five planets known in his time. Ptolemy expanded this concept and made many fine calculations to fine-tune it.à This drawing by astronomer Jean Dominique Cassini was influenced by the epicycles that Ptolemy refined by his mathematics and observations of the sky. public domain This system came to be called the Ptolemaic System. It was the linchpin of the theories about objects motions in the sky for nearly a millennium and a half. It predicted the positions of the planets accurately enough for naked-eye observations, but it turned out to be wrong and too complicated. As with most other scientific ideas, simpler is better, and coming up with loopy circles wasnt a good answer to why planets orbit the way they do.à Ptolemy the Writer Ptolemy was also a prolific writer in the subjects and disciplined he studied. For astronomy, he described his system in his books that make up theà Almagest (also known as Mathematical Syntaxis). It was a 13-volume mathematical explanation of astronomyà containing information about the numerical and geometrical concepts behind the motions of the Moon and known planets. He also included a star catalog that contained 48 constellations (star patterns) he could observe, all with the same names that are still in use today. As a further example of some of his scholarship, he made regular observations of the sky at the time of the solstices and equinoxes, which allowed him to figure out the lengths of the seasons. From this information, he then went on to try and describe the motion of the Sun around our planet. Of course, he was wrong because the Sun does not orbit Earth. But, without more knowledge of the solar system, it would have been very difficult for him to know that. However, his systematic approach to charting and measuring sky events and objects was among the first scientific attempts to explain what happens in the sky. The Ptolemaic System was the accepted wisdom about the motions of the solar system bodies and the importance of Earth in that system for centuries. In 1543, the Polish scholar Nicolaus Copernicus proposed a heliocentric view which put the Sun at the center of the solar system. The heliocentric calculations he came up with for the movement of planets were further improved by Johannes Keplers laws of motion. Interestingly, some people doubt that Ptolemy truly believed his own system, rather he merely used it as a method of calculating positions. A page of Ptolemys Almagest translated and reproduced by Edward Ball Knobel. public domainà Ptolemy was also very important in the history of geography and cartography. He was well aware that Earth is a sphere and was the first cartographer to project the spherical shape of the planet onto a flat plane. His work, Geographyà remained the principal work on the subject until the time of Columbus. It contained amazingly accurate information for the time and given the difficulties of mapping that all cartographers raced. But it did have some problems, including an overestimated size and extent of the Asian landmass. Some scholars think that the maps Ptolemy created may have been a deciding factor in Columbuss decision to sail west for the Indies and ultimately discover the continents of the western hemisphere. Fast Facts about Ptolemy Not much is known about Ptolemys early life. He was a Greek citizen living in Alexandria, Egypt.Ptolemy was a cartographer and geography, and also worked in mathematics.Ptolemy was also an avid skygazer. Sources Claudius Ptolemy, www2.stetson.edu/~efriedma/periodictable/html/Pm.html.ââ¬Å"Claudius Ptolemy.â⬠à Ptolemy (about 85-about 165), www-groups.dcs.st-and.ac.uk/~history/Biographies/Ptolemy.html.ââ¬Å"Notable People.â⬠à Who Was Claudius Ptolemy, microcosmos.uchicago.edu/ptolemy/people.html.? Edited and updated by Carolyn Collins Petersen
Wednesday, May 6, 2020
Guided Evolution and Intelligent Design A Guide to the...
In Science and Religion: Are They Compatible?, Alvin Plantinga argues that proponents of naturalism, like Richard Dawkins and Daniel Dennett, tell us that, according to the theory of evolution, neither God nor any other agent has designed or created the living world, and that evolution, therefore, clearly contradicts the central tenant of theistic religion (which Dennett labels ââ¬Å"entirely gratuitous fantasyâ⬠). If what these experts say is true and we must understand evolution only in the context of naturalistic, unguided evolution, ââ¬Å"then evolutionary theory is deeply incompatible with theistic religion, whether Christianâ⬠¦or Jewish.â⬠However, Plantinga stresses that evolution does not need to be interpreted in this way, and that, because of this, religion does not have to be held in such opposition to science at all. Christian and Jewish doctrines require only that ââ¬Å"God intended to create creatures of a certain kindâ⬠¦planned that there be crea tures of that kindâ⬠¦and acted in such a way as to accomplish this intention,â⬠and such a claim is clearly consistent with evolutionary theory in that naturalism is not a necessary requirement of the theory itself. In this paper I will explore the positions of the Jewish faith with respect to the question of evolutionary theory, and, more explicitly, will draw comparisons between Judaism and Christianity to investigate whether popular religion is as staunchly opposed to evolutionary theory as Dawkins and Dennett propose. If the work ofShow MoreRelatedOrganisational Theory230255 Words à |à 922 Pages. Organization Theory Challenges and Perspectives John McAuley, Joanne Duberley and Phil Johnson . This book is, to my knowledge, the most comprehensive and reliable guide to organisational theory currently available. What is needed is a text that will give a good idea of the breadth and complexity of this important subject, and this is precisely what McAuley, Duberley and Johnson have provided. They have done some sterling service in bringing together the very diverse strands of workRead MoreA Case Study of International Brand Management: Comparison of Lexus Brand Management in Brazil, United States and Japan.39374 Words à |à 158 Pagesà ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·17 Create advantage à ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·17 I.1.5. I.1.6. Brand structureà ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã · 17 A different perspective to brand equity. The Customer-based brand equity model à ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã · 18 Brand knowledgeà ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã · à ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã · 19 Brand awareness à ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Ã ·Read MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words à |à 656 PagesE SSAYS ON TWENTIETH-C ENTURY H ISTORY In the series Critical Perspectives on the Past, edited by Susan Porter Benson, Stephen Brier, and Roy Rosenzweig Also in this series: Paula Hamilton and Linda Shopes, eds., Oral History and Public Memories Tiffany Ruby Patterson, Zora Neale Hurston and a History of Southern Life Lisa M. Fine, The Story of Reo Joe: Work, Kin, and Community in Autotown, U.S.A. Van Gosse and Richard Moser, eds., The World the Sixties Made: Politics and CultureRead MoreLogical Reasoning189930 Words à |à 760 Pagesexpect other people to accept it. But give people arguments they can understand. Dont get 6 overly technical. Otherwise, you might as well be talking gobbledygook. Tailor your reasons to your audience. Your goal in giving an argument is to design your reasons so that your audience sees that the reasons imply the conclusion. Another way of saying this is that your audience should see that the conclusion follows from the reasons given to support it. âââ¬Ã¢ââ¬Ã¢ââ¬Ã¢ââ¬CONCEPT CHECKâââ¬Ã¢ââ¬Ã¢ââ¬Ã¢â⬠Which of the following
Tuesday, May 5, 2020
Cottle-Taylor case analysis free essay sample
Cottle ââ¬â Taloy : expanding the oral group in India Background Cottle Taylor was founded as a start hyup company in 1815. By 2009 they boast a product selection of over 200 oral care, personal, care, and home care products. In 2009 roughly 50% of the company revenue ($5.7 Billion) came from emerging markets. In 2009 Sales have grown 80% annually, net income 12% and earnings per share 14%. India Operations Cottle Taylor conducts its India operations through a subsidiary of the company called Cotte India. The India operations are solely focused on oral care, which includes toothpaste, tooth powder and dental floss. Throughout India they have a distribution network that sells in more than 450,000 retail outlets. India Demographics India is the worldââ¬â¢s largest democracy with an area of 1.2 million square miles. In 2009 the population was 1.16 billion people with a median age of 25 and an annual growth rate of 1.4%. Population control campaigns have successfully slowed down the growth rate 17% in the following years. There are 28 states and 19 territories with citizens who speak primarily Hindi as well as English as a second language. In 2009 Indiaââ¬â¢s GDP was 146 times greater than in 1990 but there is a clustered distribution of wealth with 4 states accounting for 30% of the total GDP. 37% of the population is impoverished and over 80% lived on less then $2 per day. Indian Oral Care Traditionally Indians have had very limited exposure to proper oral care. A typical Indian will chew twigs from the Neem tree which they call ââ¬Å"Natures drugstoreâ⬠In 2004 the Indian dental association launched campaigns to educate Indians about oral health care issues. Oral care grew 10% from 2008 to 2009. Quality of Life/Shopping Habits Basic health care is very limited with high illiteracy rates. A recent increase in mobile technology in India has revolutionized the country and has connected millions of people to the globe. Indians are extremely price sensitive due to the limited financial resources in the country. In semi-urban areas, smaller sized products at affordable prices are most favorable while urban shoppers prefer shopping at convenience stores, departments, supermarkets, and specialty retailers where the price is higher. Case Analysis Lang and Patel both have different ideas of what strategy should be implemented in India. The target customer is a major difference where Patel wants to focus on the low-end brushes for first time users, when Lang thinks it is better to concentrate on mid-range brushes and battery operated products for customers with higher income. The three primary messages that the company uses to market their products are: 1) Persuading consumers to brush for the first time 2) Increasing the incidence of brushing 3) Persuading consumers to upgrade to midrange or premium products. Patel, who wants to focus on reaching consumers buying the low-end products, essentially needs to imbue most of the advertising budget into the first message, which persuades consumers to brush for the first time. This is because 50% of Indians are not concerned with preventing or curing dental problems, especially in rural areas, if she aims to significantly improve sales she needs to educate these customers on the importance of oral hygiene. By educating this group, Cottle can capture this demographic and make a great profit. It is essential to start with this huge demographic of Indians who do not use tooth brushes to turn them into lifelong customers who will later on purchase more advanced dental products to compliment brushing Recommendations Uneven distribution of messages Urban, semi-urban: Message 1: 10% Message 2: 40% Message 3: 50% Rural: Message 1: 60% Message 2: 35% Message 3: 5% Above the line marketing strategy: promotional activities carried out through mass media, TV, radio, out of home, magazines, cinema and newspaper for above the line promotional activities. Cottleââ¬â¢s ATL strategy: Advertise through billboards on the streets Advertise aggressively on mid-range toothbrush Link it to CSR activity to educate society on brushing twice and market the product. Below the line marketing strategy: Non-media communication or advertising and has become increasingly important in the communications mix of many companies. It is efficient and cost-effective for targeting a limited and specific group. Cottleââ¬â¢s BTL strategy: Updating ââ¬Å"Anganwadiâ⬠workers in villages about the oral hygiene and providing the free samples to people who come oral health problems. Free health check ââ¬â ups in towns schools and colleges and provide them with samples. More focus on message 1 and 3 ; message 2 would be implicit. Message 1: target young people and their parents. School plays ââ¬Å"the demand for the golden brushâ⬠. Playing the kinds, the parents, and the doctor. In the end of the play kids would get a voucher saying ââ¬Å"10% discount on a kids toothbrush or a familiar toothpaste or an electrical brush Promote through radios: ads like ââ¬Å"I have a gum problem but since I started to brush every day I donââ¬â¢t have a problem anymoreâ⬠Message 2: brush more often: distributors and dentists would talk about it: Promote through flyers radio and TV Message 3: Upgrade the brush: focus on TV ads and dentists: Ads with ââ¬Å"son brushing for the first time and father brushing with electric brush. In the end with the dentist recommending itâ⬠. Promote through radios.
Saturday, April 11, 2020
Air quality free essay sample
The quality f air that we breathe in today has significantly reduced over the years. Atmospheric air contains nitrogen, oxygen, carbon dioxide and rare inert gases. Of these, the two highly inevitable ones are oxygen and carbon dioxide. Theses are important for the survival of life n the planet: 02 is useful for animals and CO2 for photosynthesis in plants. The quality of these gases is determined by availability and its pollution-free state. Both factors have contributed to the present unfavorable status quo of these gases with respect to the sustenance of life on the planet. THE TREND Many conferences have held in nations of the world; quite a handful of International Summit have held to address the prevalent menace of environmental pollution that threatens all lives on the Earth. Daily, the number of endangered species increase, and many plants and animals have already gone into extinction as a result of the pollution affecting the quality of atmospheric gases available for daily cellular functions. We will write a custom essay sample on Air quality or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Human activities such as deforestation and degradation, water pollution through oil spillage and poor river basin development programs have indeed played significantly roles. Besides, exhauist from mechanical equipment and vehicles, gaseous wastes from manufacturing industries, pollution with indiscriminate use of plants chemicals such as herbicides, pesticides, etc have contributed to the reduction in the quality of air available to plants. This has affected the produce of plants, and the health of animals including humans. RECYCLING One must realize the fact that plants constitute a major recycling pathway for the purification of atmospheric air. Photosynthesis uses sunlight and such inorganic molecules like CO2 to produce organic compounds in the from of glucose. This is consumed by animals to produce CO2. O2 is used in oxidation of food in animals with carbon dioxide as byproduct. This pathway is important in determining the quality of atmospheric CO2 and O2, a byproduct of photosynthesis. This implies that any process, natural or man-made, that alters this pathway will affect the recycling process and the availability of good quality air for life. The threat of destruction of rainforest would have tremendous impact on future levels of these gases: It would cause an automatic alteration in the pathway describes above. Plants population would reduce and animals would suffer greatly for this. As a result of this imbalance, atmospheric oxygen and carbon dioxide would change accordingly. CONCLUSION The quality of atmospheric oxygen and CO2 has changes over the years. The threat of rainforest destruction would worsen the change in the future. REFERENCES www.climatechangeissues.com/files/science/Plimer.doc
Tuesday, March 10, 2020
September 11th - Article Summary 2002 essays
September 11th - Article Summary 2002 essays Kitchener-Waterloo Record: Opinion, Wednesday, September 11th 2002 page A10 A Firefighters Reflection: I will never be the same This article is about a New York firefighter that was involved in the September 11 terrorist attacks on the World Trade Centers. Kevin Flaherty has been on the Fire Department of New York for 8 years. He writes to us because he is thankful for the help he got from the Canadian Firefighters. He is proud to wear an American-Canadian flag pin. Kevin was working the day of September 11th; he was with Engine 238 that was called to Tower 2. He remembers hearing loud explosive noises while approaching the building, looking up he realized that people were falling from the 80th floor. The explosive noises were people hitting the ground- it was constant, they kept jumping. He was haunted by the fact that people werent on fire were alive until they had hit the ground. Once Kevin entered the building he received news that one of his friends was hit by a jumper and killed. A group of fire fighters were ordered to go up 2 floors before the fire in Tower 2; they were to take their air cylinders. If they got tired, they were to take off their equipment and keep heading up. As he reached close to the floors that were burning, he remembers hearing a loud rumbling noise. The lights flickered and they felt wind on their backs. Kevin was lifted off his feet and thrown over a set of turnstiles across the lobby and into the wall. It felt like an atomic blast. Kevin says. He couldnt see or hear. Then in the darkness he heard Engine 238, Engine 238. The lieutenant was regrouping them. They found a way out and noticed that the tower was beginning to collapse, he began to run but he knew he couldnt escape the debris. He luckily survived the debris without a scratch, but the lieutenant was not seen anywhere. It was the most difficult thing Kevin has ever done. The lieutenan...
Saturday, February 22, 2020
Peter Alexander Promotional Plan Essay Example | Topics and Well Written Essays - 2250 words - 1
Peter Alexander Promotional Plan - Essay Example It is evidently clear from the discussion that target audience is subdivided into three categories. Differing products are to be designed for each target market. The markets include teenagers, young adults, couples, and kids. Members of all of these audiences shall be satisfied via product differentiation. The marketing mix of the Peter Alexander shall be representative of its overall strategy. Products shall be designed in ways that are differentiable and aimed towards the specific target market. Placement shall be done strategically and strong third-party ties with distributors shall be ensured to ascertain the timely distribution of products to customers all across the country. Promotion shall be done through ATL and BTL. The cost-effective medium of internet shall be the key communication strategy as it can attract customers immediately online and does not add much to the costs. The firm shall use creativity by using the image of Peter Alexander as the brand persona and exploitin g the internet for this purpose. Peter Alexander is an exclusive brand of nightwear that has operations centralized in Australia. Peter Alexander, the man himself, personifies the brand and serves as a symbol for the company. The company has a high brand equity with its followers due to the exclusivity showcased by Peter Alexander. The brand idea came into being when Peter bought a pair of Pajamas in Hong Kong. He was startled by the way in which he was attracted towards them and wanted to identify ways to make these products appeal to other people around him. Today Peter Alexander is one of the top sleepwear brands in Australia and from an online business, it has expanded into stores and continues to operate online.
Thursday, February 6, 2020
Ethics Mod 5 Essay Example | Topics and Well Written Essays - 1000 words
Ethics Mod 5 - Essay Example SHA asks employers in the United States to comply with its regulations to ensure that they provide safe and healthful workplace, and it constantly monitors strict compliance to these regulations by conducting inspections, whistle-blower activities, post-incident follow-ups etc. According to the norms of this act, employer is basically held responsible for employeesââ¬â¢ falls or injuries that occurred due to employerââ¬â¢s failure to provide adequate safety and health measures instructed in the OSH Act. OSH Act imposes a duty on employers to take steps to control risks to employees or third parties from slips, trips and falls. However, employees are also held responsible for falls or injuries if it happened due to their mistakes, because they are under the duty to behave in a responsible way to ensure their own safety and the third parties near to them. Even after 44 years since Congress passed the OSHA of 1970 by strictly instructing employers to provide workplace safety, security and health to make employees free from hazards, the toll of workplace injuries and deaths still remain unjustifiably high. As of OSHAââ¬â¢s report, there were 4,405 death cases in the United States due to falls or injuries in workplaces in 2013 (osha.gov, 2015). Work injuries and hazards cause severe impacts on income inequalities and create a big burden of medical and other expenses on employees. In order to eliminate workplace injuries and its impacts, OSHA has not only made it stricter that employers are responsible for employeesââ¬â¢ injuries, but also asked employers to become familiar with standards applicable for their establishments or workplace environments. According to many health and safety professionals today, simply complying with OSHA standards is not sufficient to safeguard all employees in the workplace. Instead, these professional s have developed extensive written compliance programs with which compliance is achieved and maintained as part of the all-encompassing safety and
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