A Profile of Greek Mathematician Eratosthenes

Eratosthenes (c.276-194 B.C.), a mathematician, is known for his mathematical calculations and geometry. Eratosthenes was called Beta (the second letter of the Greek alphabet) because he was never first, but he is more famous than his Alpha teachers because his discoveries are still used today. Chief among these are the calculation of the circumference of the earth (note: the Greeks did know the earth was spherical) and the development of a mathematical sieve named after him. He made a calendar with leap years, a 675-star catalog, and maps. He recognized the Niles source was a lake, and that rains in the lake region caused the Nile to flood. Eratosthenes - Life and Career Facts Eratosthenes was the third librarian at the famous Library of Alexandria. He studied under the Stoic philosopher Zeno, Ariston, Lysanias, and the poet-philosopher Callimachus. Eratosthenes wrote a Geographica based on his calculations of the circumference of the earth. Eratosthenes is reported to have starved himself to death at Alexandria in 194 B.C. Writing of Eratosthenes Much of what Eratosthenes wrote is now lost, including a geometrical treatise, On Means, and one on the mathematics behind Platos philosophy, Platonicus. He also wrote the fundamentals of astronomy in a poem called Hermes. His most famous calculation, in the now lost treatise On the Measurement of the Earth, explains how he compared the shadow of the sun at Summer Solstice noon in two places, Alexandria and Syene. Eratosthenes Calculates the Circumference of the Earth By comparing the shadow of the sun at Summer Solstice noon at Alexandria and Syene, and knowing the distance between the two, Eratosthenes calculated the circumference of the earth.The sun shone directly into a well at Syene at noon. At Alexandria, the angle of inclination of the sun was about 7 degrees. With this information, and knowing that Syene was 787 km due south of Alexandrian  Eratosthenes calculated the circumference of the earth to be 250,000 stadia (about 24,662 miles).

Religion And Morality On The Hunt Of Finding The Author Of...

God as Author of Morality There is always controversy around when we bring any topic related to religion to the table and it is not different when we talk about morality. This paper will explore the controversial side that plays religion and morality in the hunt of finding the author of what we know as social norms. In this philosophy paper, we will discuss the origin and evolution of the Divine Command Theory and we will analyze an objections against this theory cited by Plato (Atenas, 427 - 347 a. C.) who states: morality and moral obligations ultimately do not depend on God. First of all, we will discuss the origin end evolution of Divine Command Theory. There are three central assumptions about the correlation between morality and religion. We may focus on one out of those three assumptions. This assumption points out that somehow there is a direct relation between a divine being and what is morally appropriate. Russ Shafer-Landua explains this argument by claiming: â€Å"Morality must be created by someone, and God is by far the best candidate.† (2014 The Fundaments of Ethics p.63) God’s omniscience (all-knowing) is which gives the best credentials for designing a moral code. Also, this assumption claims that without the existence of God there would be a lack of morality, considering that we need some authority to guide us. Our disapproval of certains action do not make things wrong, since as human beings, we have a limited overall vision. Shafer-Landua also shows that dueShow MoreRelatedCultural Anthropology6441 Words   |  26 Pages - linked to other cultural domains such as: Exchange: pot latching art and dance, Bodily modification. Decorations, tattoos Religion: clothing, practices, etc. What is Art? Art is application of imagination, skill and style to matters movement, and sound that goes beyond the purely practical. * High art= in a museum * Low art= graffiti Who decides: What is Art? Emic/etic confusions regarding art * Emic: insider (member) view or members of culture * Etic: outsider (observer)Read MoreAppearance Discrimination in Employment22039 Words   |  89 Pagesour reviews for related items Marked list Top of Form Add to marked list:  Ã‚  [pic][pic] Bottom of Form Bookmark share   Ã‚  Ã‚  Ã‚  Ã‚   Reprints permissions   [pic] Legal and ethical implications of â€Å"lookism† and â€Å"lookphobia† The Authors Frank J. Cavico,  The H. Wayne Huizenga School of Business and Entrepreneurship, Nova Southeastern University, Fort Lauderdale, Florida, USA Stephen C. Muffler,  The H. Wayne Huizenga School of Business and Entrepreneurship, Nova SoutheasternRead MoreNegotiation: Game Theory and Games13514 Words   |  55 Pagesthinks of power as a relation. Based on the distribution of elements, in structural analysis we find either power-symmetry between equally strong parties or power-asymmetry between a stronger and a weaker party. All elements from which the respective parties can draw power constitute structure. They may be of material nature, i.e. hard power, (such as weapons) or of social nature, i.e. soft power, (such as norms, contracts or precedents). These instrumental elements of power, are either defined as parties’Read MoreHistory of Management Thought Revision17812 Words   |  72 Pages Taylor and trace developments in management thought in Great Britain, Europe, Japan, and the U.S.A. up to about 1929. Taylor is the focal point, but we will see his followers as well as developments in personnel management and the behavioral sciences. Henri Fayol and Max Weber will be discussed, although their main influence came later, and we will conclude with an overview of the influence of scientific management in its environment. Chapter 7 The Advent of Scientific Management FrederickRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesISBN-10: 0-13-283487-1 1. Organizational behavior. I. Judge, Tim. II. Title. HD58.7.R62 2012 658.3—dc23 2011038674 10 9 8 7 6 5 4 3 2 1 ISBN 10: 0-13-283487-1 ISBN 13: 978-0-13-283487-2 Brief Contents Preface xxii 1 2 Introduction 1 What Is Organizational Behavior? 3 The Individual 2 3 4 5 6 7 8 Diversity in Organizations 39 Attitudes and Job Satisfaction 69 Emotions and Moods 97 Personality and Values 131 Perception and Individual Decision Making 165 Motivation Concepts 201 Motivation:Read MoreOrganisational Theory230255 Words   |  922 PagesPerspectives 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 work that today qualify as constituting the subjectRead MoreMedia Law: Defamation, Copyright, Etc23627 Words   |  95 Pagesdefamation will assist in framing material appropriately and avoiding claims. If in doubt journalists should consult more senior staff or seek legal advice. Prevention of problems is cheaper (and better for career advancement) than cure. 2. What is defamatory? There is no uniformly accepted definition. Basically, a publication is defamatory if it causes the injured partys reputation to be lowered in the eyes of ordinary members of the community, or causes them to be shunned, avoidedRead MoreMedia Law: Defamation, Copyright, Etc23639 Words   |  95 Pagesdefamation will assist in framing material appropriately and avoiding claims. If in doubt journalists should consult more senior staff or seek legal advice. Prevention of problems is cheaper (and better for career advancement) than cure. 2. What is defamatory? There is no uniformly accepted definition. Basically, a publication is defamatory if it causes the injured partys reputation to be lowered in the eyes of ordinary members of the community, or causes them to be shunned, avoidedRead 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   |  656 Pagesperspectives on the past) Includes bibliographical references. ISBN 978-1-4399-0269-1 (cloth : alk. paper)—ISBN 978-1-4399-0270-7 (paper : alk. paper)—ISBN 978-1-4399-0271-4 (electronic) 1. History, Modern—20th century. 2. Twentieth century. 3. Social history—20th century. 4. World politics—20th century. I. Adas, Michael, 1943– II. American Historical Association. D421.E77 2010 909.82—dc22 2009052961 The paper used in this publication meets the requirements of the American National StandardRead MoreDeveloping Management Skills404131 Words   |  1617 Pagessolution for courses in Principles of Management, Human Resources, Strategy, and Organizational Behavior that helps you actively study and prepare material for class. Chapter-by-chapter activities, including built-in pretests and posttests, focus on what you need to learn and to review in order to succeed. Visit www.mymanagementlab.com to learn more. DEVELOPING MANAGEMENT SKILLS EIGHTH EDITION David A. Whetten BRIGHAM YOUNG UNIVERSITY Kim S. Cameron UNIVERSITY OF MICHIGAN Prentice

Physics Persuasive Essay Example For Students

Physics Persuasive Essay Blackballing Look Think Motion can be described using graphs. Graphs and charts are common tools used in science. To interpret graphs, read the axis labels as well as the numbers on the axis. The title should give you some clue as to the purpose of the graph. Next, examine the content. Try to describe the content in words, using As _(quantity on the x axis), _(type of change, such as increases or decreases), (quantity on the y axis) _(type of change such as increases or decreases). For example, the graph above could be described, As time increases from O to 8 seconds, the velocity of Billy increases linearly from O to about 14 m/s. One dimensional motion, such as a car trip, can be described using several different graphs. A velocity vs.. Time graph can be used to describe both acceleration and displacement. Acceleration is shown by the slope of the graph, displacement by the area. Their house. They recorded their velocity every second. After they got home, each of them added their data to the graph above. Write Using physics vocabulary, compare/contrast Billys and Crystals trip. Be sure to understand the type of graph that is being used. Center your thoughts around a central idea and write directly to the prompt. Organize your composition in one paragraph with an introduction and conclusion. Use terms such as velocity, acceleration, position, displacement, correct units, direction of motion do not use graphing terms such as slope, up, down, positive, negative write at least 5 sentences sketch a position-time graph and an acceleration-time graph WRITING SCIENCE!

Sex And Religious Morality Essays - Gender, Interpersonal Attraction

Sex And Religious Morality It has been said that the two most powerful drives in a human, besides the practical need for food and shelter, are sex and religion. The sexual urge is strong in nearly everyone, as advertisers of everything from chocolates to cars can tell you, and the urge to worship the divine (by whatever name) is also strongly present in many. In early religions and Neo-Paganism, sex was celebrated as an affirmation of life. It was felt to be a foundational part of the order of the world and of human nature. Therefore, separating it from religion was unthinkable and a kind of contradiction in terms. Many who followed the teachings of Jesus were converts from Pagan religions that used heterosexual and homosexual activities as a means of worship. Religious Fundamentalists argue that sexual acts outside a marriage are immoral-even then sex is only to be used as a means for procreation and is not meant to be thoroughly enjoyed. Homosexuality, according to them, is an abomination that has always been condemned in the Bible. Fundamentalists are so devout in their religions they become blinded to any other interpretation of the Bible other than the literal views they believe. If this were not so, they might be more open to the fact that the words "homosexual" and "homosexuality" were not part of the Hebrew or Greek languages, because they were not coined until the 19th century. Therefore, it is impossible that the original scriptures contained words pertaining to something that did not exist. Such narrow-minded and hypocritical convictions cause the Fundamentalists to show a hardness of heart to love, compassion and service towards others?aspects that other religions embrace as their highest priorities. Reverend Peter Gomes strives to teach groups like Fundamentalists not to interpret the Bible literally?especially when abusing passages to condemn issues such as homosexuality. He asks of people, when reading the Bible, to ask not only what it says, but, "what did this mean when it was written," and "what does it mean now?" because not many people realize that the Bible was written by hundreds of people at different time periods in languages that may no longer be used. It's groups such as the Fundamentalists who are quick to condemn homosexuals as sinners. Because they take passages so literally, it's easy for them to discriminate against, and persecute gays and lesbians. Careful study will show that while the Bible does condemn homosexual and heterosexual prostitution, it says nothing about loving, committed homosexual relationships. Jesus himself never commented on homosexuality, which makes one wonder whose concern it really was. Unfortunately, many bible passages are taken out of context, or interpreted without consideration for the cultural aspects associated with the time period in which they were written. Also, there are many versions of the Bible that reflect limited scientific knowledge, personal beliefs of the interpreters and social beliefs of the times they were written. Personal biases and societies prejudices have most certainly distorted the Bible's many translations. For example: People use the passage about Sodom to condemn homosexuality as a sin because the townsmen wanted to rape two angels visiting Lot. By looking closer, one can see the men were not punished for homosexuality, but indeed for the sins of pride, greed, and idolatry of Babylonian and Canaanite gods. Nothing about homosexuality is mentioned?in fact, Lot offered the men his own two daughters?indicating that the men were heterosexuals wanting to inflict punishment in the form of rape upon the angels. In fact, homosexual rape was a common form of punishment when men wanted to prove their dominance or influence in any given situation. Also, passages from Leviticus are commonly used to denounce homosexuals even though the word homosexual doesn't appear anywhere. This was actually a code of Holiness used as a ritual manual for Islamic priests. Christians are not bound by these rules and rituals, and if they insist on using these passages to attack homosexuals they are also bound by the other rules and rituals therein described. It forbids: - Sexual intercourse with a woman during her menstrual cycle - Tattoos - Eating certain kinds of meats - Wearing clothing made of more than one cotton blend - Men cutting their hair or shaving their beards This code also endorses polygamy and requires Saturday to be the holy day. Obviously it is unfair to condemn homosexuality, while ignoring the fact that most Christians do not follow the rest of the rules outlined in the Holiness Code of Leviticus. Although there's a lot of negative feedback because of negative