Ancient Greece and Magna Graecia Essay Example | Topics and Well Written Essays - 2500 words

Ancient Greece and Magna Graecia - Essay Example Therefore, the Hellenic civilization flourished, later accepting the influences of native Latin civilization. The objective of the essay is to explore the influence of the Greek civilizations on its colonies and to know how far the Hellenic civilization embraced the hue of the native culture and civilization. Moreover, the focus will be to delve into to the ancient history to bring out the efforts of the indigenous people of the colonies to resist to maintain their own identity. The artifacts evidences will be explored to substantiate the stance. Hellenic art, which has a diverse subject matter and is enriched in stylistic development, flourished in an age which is distinguished by a strong sense of history. It was the age when museums and great libraries were established. The Hellenic art kept the traditions but had also made great innovations . The neo- Hellenic Art; the art which flourished in the Greek colonies had no precedence in earlier Greek art. As for example we find grotesques subjects; the figure of Greek Dwarf is, among the statuettes of the Hellenic civilization and Roman period, a standard example and type of grotesque. (Archaeological Institute of America; Vol.88 No.3, July, 1984, pp. 389-391) And the portraits of ethnic people, especially of Africans, betray the diversity of the Hellenic civilization. The new affluent class of consumers, who benefited from the trades, decorated their homes with luxury goods, such as bronzes statuettes, delicately carved furniture, sculptures made of stones and pottery with mold-made decorations. In the chapter on Pithekoussai and Cumae in The Greek Cities of Magna Graecia and Sicily by Luca Cerchiai, Lorena Jannelli, Fausto Longo, there is a picture of Rhodian cup from the grave yards of Monte Vico, which dates back to 730 B.C., and it bears the inscription 'I am the goblet of Nestor, fine to drink from, but whoever drinks from this goblet will instantly be seized by desire for the well-crowned Aphrodite.' This inscription reveals the vast knowledge of the epic cycle and it also reveals that the owner of the cup or whosoever used it was quite familiar with the Iliad.The Romans were the avid collectors of Greek art who loved to decorate their houses with Greek sculpture as demanded by their taste and interests. The wall paintings of Boscreala are t he evidence of the classical milieu that the Romans aristocracy preferred for their homes. Archaeological Evidence: The Town Planning: (a)Hippodamus of Miletus Hippodamus of Miletus is the known Greek urban theorist. The world knows him from the brief description of Aristotle in Politics. Aristotle tells us that Hippodamus, "discovered the division of poleis" This refers to the physical planning of the cities which surely did not refer to the invention of grid plan, which was an ancient technique and was in use when Hippodamus was born. (Cahill, 2002). Hippodamus introduced, in his utopia, the tripartite system; his polis, comprising of 10,000 citizens, was divided into three sections, one section was for artisans, the other for farmers and the third section was for soldiers. Likewise the land was also divided in three parts; religious, public and the private part. This numerology of Hippodamus is attributed to his background of Ionian

Socratic dialogue Essay Example for Free

Socratic dialogue Essay 1. Meno is among the Socratic dialogues that were inscribed by Plato early in the Fourth Century B. C in Greece. Plato wrote the article in an attempt to determine the befitting definition of virtue as he understood it. He wanted to come with a common meaning of virtue which applied evenly to every particular virtue; this he succeeds with the use of the dialogue between Socrates and Meno. The dialogue between Meno and Socrates tries to define what aspects makes a human being good and what makes him or her bad. Plato as well introduces another theme in the talk anamnesia. Anamnesia suggests that human soul is eternal and it understands everything, and merely recollects for the purpose of learning. The article brings out the ideological difference between Meno and Socrates. 2. Meno first points out that virtue is different from person to person but Socrates believes there is a common definition for all. Socrates rejects Meno’s assertion that virtues depends on factors like age and gender. Meno secondly suggests that the capacity to govern well (Plato, 2009) could be a virtue to all. Socrates mentions to the slave master, Meno, that governing well can never be a virtue of a slave, since he would then not be a slave anymore. Meno also suggests that virtue is yearning for fine things and the influence to get them. Socrates notes that this brings about another dilemma- a lot of people don’t recognize what is evil. 3. Socrates drew geometric shapes on the ground to articulate how a slave is originally ignorant of finding double the square area. Socrates explains how, before he randomly picked the slave boy from Meno’s entourage, the slave boy had spoken well and fluently on the topic (Plato, 2009). Socrates remarks that the numbing he effected on the slave boy did not harm him. Afterwards he draws another square shape diagonally; the slave boy can now observe that adding horizontal and vertical lines from the square corners, the area created is double the size. Socrates gets the slave boy to concur that the area is doubled and the slave boy admits to â€Å"spontaneously recovering knowledge from a previous life. Witnessing the slave boy example, Meno finally concurs with Socrates in his â€Å"innate† theory (Plato, 2009). 4. Virtue is something that someone learns from the environment that he or she has been brought up in. Sometimes the degree of holding on to a belief as being true depends on how seriously the subject matter is taken in the society one is brought up in. Knowledge and virtue are closely related but can be mutually exclusive. When a child grows up he or she learns new things by observing the environment, and based on his observations will decide what is virtuous and what is not. This is mostly based on his reaction to the society’s treatment or punishment of alleged vices. When he or she grows he forms his own opinion of what is good and what is bad, based on his interactions in life. Reference: Plato. (2009). Meno. Arc Manor LLC.

The Doppler Effect And Its Applications

The Doppler Effect And Its Applications Perhaps you have noticed how the sound of a vehicles horn changes as the vehicle moves past you. The frequency of the sound you hear as the vehicle approaches you is higher than the frequency you hear as it moves away from us. This is one example of the Doppler Effect. To see what causes this apparent frequency change, imagine you are in a boat that is lying at anchor on a gentle sea where the waves have a period of T =30s. This means that every 3.0 s a crest hits your boat. These effects occur because the relative speed between your boat and the waves depends on the direction of travel and on the speed of your boat. When you are moving toward the right in Figure 17.9b, this relative speed is higher than that of the wave speed, which leads to the observation of an increased frequency. When you turn around and move to the left, the relative speed is lower, as is the observed frequency of the water waves. Content Doppler Effect (Sound) and its Application Introduction In physics, the Doppler Effect can be defined as, The increase or decrease in the frequency of sound and also to other waves such as the source and observer moving toward or away from each other. Thus the effect causes the change in pitch which is clearly noticed in a passing siren or train horn, as well as in the red shift/blue shift. The Doppler Effect is familiar to us with everyday experiences. It explains us the change in the pitch of a fast moving car horn or any other fast moving sound source as it passes us. If the car is approaching us, the pitch of the cars horn will be greater than if the car were stationary and as the car passes us and begins to move away from us the pitch will be lower than if the car were stationary. In fact, whenever the source and observer of a sound are in relative motion, the observed frequency will be different than that of the emitted one by the source. For example: The Observer feel higher frequency, when the train is coming to the observer. The Observer feel lower frequency, when the train is going far from the observer. History: The Doppler Effect was discovered by a scientist named Christian Doppler, who gifted his idea to us in year1842. He thought, if sound wave coming from the source might have a greater frequency and if the source is moving toward or the observer so there will be lower frequency if the source is moving away from the observer. Though some doubted the existence of this phenomenon, it was experimentally verified in 1845 by C. H. D. Buys Ballot (1817-1890) of Holland. Buys Ballot examined the alteration in pitch as he was passed by a locomotive carrying several trumpeters, all playing a constant note. The Doppler effect is considered most often in relation to sound (acoustic waves) and light (electromagnetic waves) but holds for any wave. When the source and observer of light waves move apart, the observed light will be shifted to lower frequencies, towards the red end of the spectrum, while if the source and observer move toward each other the light will be shifted to higher frequencies, t owards the blue end of the spectrum. The Doppler Effect is the phenomenon to observe at a particular time when the wave is emitted by a source moving w.r.t. the observer .The Doppler Effect can be stated as the effect produced by a moving source of wave when there is an apparent upward shift in the frequency to be observed by the observer and the source which is approaching toward it and the downward shift in the frequency to which it when the observer and the source is contacting. Change in the wavelength due to the motion of the source For the waves which propagate in the medium, such as sound waves, the speed of the observer and the source are in relation with the medium to which the waves are transmitted. The Doppler Effect may result from the change in position of the source, relative motion to the observer. Each of the effect is analyzed singly. For the waves which do not require any medium for propagation, eg. Light and gravity in general relativity, for it the difference in velocity of the observer and that of the source needs to be considered. HOW DOPPLER EFFECT DOES OCCURS: TYPES OF DOPPLER EFFECT: Symmetrical: It implies that Doppler shift is same when the source of light moves towards/away from a stationary observer or the observer moves with the same velocity towards/away from the stationary source. Asymmetrical: It implies that apparent change in the frequency is different when the source of sound moves towards/away from a stationary observer or as that occurs, when the observer moves with the same velocity towards/away from the stationary source. DOPPLER FORMULAE: Now the observer is in motion and also the source is stationary, then the measured frequency is: (1) When the up sign correspond to the arriving observer and the lower sign correspond to a receding observer. Now the source is in motion and the observer is stationary, then the measured frequency is: , (2) Where the up sign correspond to the source arriving and the lower sign correspons to the source receding from the observer. When both the source and observer are in motion, then the measured frequency is: 3) Note that the sign in the numerator and denominator are not depending on each other. By using the general facts for the sign at the numerator, the up sign is to be used if the observer is moving toward the source and the down sign if moving away from the source; in the denominator, the upper sign is used if the source is in motion w.r.t the source towards the observer and the lower sign if moving away. A simple trick to remember the signs is to remind one when or not the observed frequency is becoming to increase or decrease and to use whenever sign is required. For eg, when an observer is moving away from a source, the wave are going to move across it at the slow rate rather than if it was still, which signifies that the observers frequency is decreasing. And also it can be for when the source is in motion w.r.t an observer, it will go to smoosh the wave together as it emit it, which means to say that the increase in the observed frequency. This will be covered by making the denominator in eq (3) smaller, which do requires using it again. Source moving with V source < V sound: In picture shows sound source has radiated sound wave at the const. frequency in the same medium. However, the sound source is turning to the right with a speed Vs = 0.7 V(In mach). The wave fronts are to be produced with the same frequency. Since the source is moving and the center of the new wave front is now slightly shifted to the right. As a result, the wave fronts start bunching on the right side (in front of) and spread further on the left side of source. An observer in the front of the sourceis made to hear it at higher frequency f ÂÂ ´ > f0, and then the observer back to the source will hear a lower frequency f ÂÂ ´ < f0. Source moving with V source = V sound: Here the source is moving with the speed of sound in the medium (Vs = V, Mach 1). The wave fronts in front of the source are all bunched up to the same point. An observer in front of the source will feel nothing until the source arrives to him. The front will be quite intense, due to all the wave fronts add together.The figure at right shows a bullet travelling at Mach 1.01. You can see the shock wave front just ahead of the bullet. Source moving with V source > V sound: The sound source has been broken through the sound speed barrier, and is traveling at the greater speed then the speed of sound. Here the source is moving faster than that of the sound waves it creates are really leading the advancing wave fronts. It is this intense pressure front on the Mach cone that causes the shock wave known as a sonic boom as a supersonic aircraft passes overhead. The shock wave advances at the speed of sound v, since it has been built up from all of the combined wave fronts, the sound heard to the observer will be of the quite intense. Application of Doppler Effect: Sirens: The reason why the siren slides or blow, is because it doesnt hit you. It can be says as, if the siren is approaching to the observer directly, the pitch of the sound would remain constant (we have, vs, r is the radial component) till the source hit the observer, and then jump to the lower pitch. Because of the vehicle passes from the observer, the radial velocity never remains constant, but instead to vary as a function of the angle between observer line of sight and the sirens velocity: Vr = Vscos ÃŽÂ ¸ Where vs is the velocity of the source w.r.t. the medium, and the angle ÃŽÂ ¸ is the angle between the objects forward velocity and the line of sight from the object to the observer. Radar:-In the radars Doppler Effect is widely used in some of the radar, to measure the velocity of the object. A sound with required wavelength, intensity is fired to a moving target as it approaches from the radar source. Each subsequent radar wave has to travel farther to reach the object, before being redetected near the source. As each wave has to move farther, the gap between each wave increases, increasing the wavelength. Calculations from the Doppler Effect accurately determine the observers velocity. Weather Analysis or prediction: -Doppler radar uses the Doppler Effect for electromagnetic waves to predict the weather. In Astronomy:-The Doppler shift for light is used to help astronomers discover new planets and binary stars. Echocardiography: A medical test uses ultrasound and Doppler techniques to visualize the structure of the heart. Radio Direction Finding Systems

New Zealand Early Childhood Curriculum Essay -- Education, elementary

Fleer claims â€Å"there are many theoretical voices within Te WhÄ riki,† the New Zealand Early Childhood Curriculum document (Nuttall, 2003, p.254). However two are predominant and stand symbiotically on the pages and in the intent of the curriculum. Bronfenbrenner’s ecological, system’s theory, which emphasises how the quality and setting of the child’s environment influences the child (Ministry of Education, 1996; Paquette, & Ryan, 2001) and Vygotsky’s ‘sociocultural theory,’ which describes learning as a social process originating in society or culture and passed through generations (UNESCO, 2004). Discussed within this essay will be a review of these theoretical perspectives illustrating their explanations for how each influences the child, how the child learns, how development is explained, and how these theories are reflected within Te WhÄ riki. Bronfenbrenner’s ecological, system’s theory describes how the child and their immediate surroundings are in an innermost layer surrounded, embedded and influenced by layers from the larger environment all impacting upon the child (Ministry of Education, 1996; Paquette, & Ryan, 2001). Of particular interest are the effects to the child of two way relationships towards and away from the child, as defined by Bronfenbrenner as bi-directional influences, these are particularly influential in the child’s inner layer. For instance: the impact to the child of attentive or non-attentive parents affects how the child reacts to a given situation, which in turn affects how the parent behaves. Notwithstanding, the impact of bi-directional influences on the child’s world continues into the outer layers, as in the example of a parent’s workplace demanding more input into the workplace, which means... ... social aspects have a huge influence on these surroundings. This is demonstrated when whÄ nau are involved and supportive in a child’s life, sharing the family’s and their culture’s funds of knowledge, resulting in the positive effect to the child’s environment which will have vast social and educational impacts by ensuring connections are made to children’s lives and experiences. Adding to this is the socio-cultural philosophy of peer tutoring and where knowledge is actively constructed through modelling and scaffolding, with teachers facilitating the learning process. While through the building of relationships between the family and the centre, Te WhÄ riki advocates the importance of the involvement of whÄ nau and family, which encourages a learning community which has interchangeable reciprocal advantages in a safe, positive, fun, caring, learning environment.

Whales vs Dolphins

The oceans are inhabited by various kinds of animals and plants, such as fish, cetacean (whales, dolphins and porpoises), cephalopods (octopus and squid), crustaceans (lobsters, clams, shrimp and krill), planktons, starfish, Jelly fish etc. The largest In bulk Is the cetacean order. Although whales and dolphins have different outer appearance they belong to the same order and share many similarities. First of all, they are both mammals and share similar characteristics of the anatomy.They have similar vital organs and skeleton, and they breathe and eproduce in the same way. If we scrutinize (take under scrutiny) their way of breathing, we can see that both of them breathe through blow holes which are nasal openings on top of their head. Both breathe with lungs which make them different from the class of fish. Moreover, they reproduce in the same way – by giving birth to a live young which is nourished with milk by its mothers. 80th have one calf at a time and their gestation p eriod ranges from 9 to 18 months.The calves are born tall first to minimize the risk of drowning. Then the calf Is lifted by Its mother to the surface so that It takes Its first breath. Nursing continues for more than a year. Secondly, we can spot many similarltles regarding their social behavior, vocalization and sleeping methods. Whales and dolphins live In plods which are groups of either whales or dolphins respectively. Members of the pod protect each other, feed and migrate together. The number of pods members may vary from 2 to 50. Additionally, they communicate between each other by emitting sounds i. . by vocalization. There use dfferent sounds for different purposes. Generally, these sounds are used for communication, attracting mates and localizing pray i. e. echolocation. What is more, they display similar behavior when it comes down to their sleeping methods. They are both conscious breathers and thus they cannot afford to be unconscious while sleeping because that may l ead to drowning. Hence only one hemisphere of their brain sleeps at a time, so they rest but are never completely asleep. Thirdly, they are considered to have high Intelligence and emotional empathy.Both are highly social beings and they have a complex form of communication with each other which can be defined as language. They cooperate with each other, teach, learn and even grieve. They are very protective of each other and will defend their family and pod from any potential threats. Moreover, they are able to sympathies not only with their relatives but also with other animals in need. Their possession of spindle cells indicates a possibility of high intelligence. Spindle cells are also found in humans, apes and elephants.Scientists find them to have an important role in any cognitive abilities and disabilities ranging from great perceptiveness and perfect pitch to autism and dyslexia. What Is more, in self-awareness experiments they can Identify their reflections in a mirror. To sum up, despite their different physical appearance they are strikingly slmllar. They belong to the same cetacean order and thus share many traits regarding their are compassionate, sociable animals which treat their families in a similar way we do. They are fascinating creatures and I believe that there is even more to surprise us if we explore them further.

Educating African Americans Essays - African-American Literature

Educating African Americans Essays - African-American Literature Educating African Americans Educating African Americans University of Phoenix ENG/496 ANGELA MULLENNIX July 9, 2015 A Decade of Reconstruction is one of my favorite pieces in the Literature of Reconstruction to the New Negro Renaissance chapter. With life as many African Americans knew if there life had changed for the better, but it was sad to read that many stayed and worked for the same people that owned them. Under new institutions such as sharecropping and the convict-lease system, most African Americans, especially those living in the states of the former confederacy, continued to work on farms, often in service to the same people who had once owned them (The Norton Anthology of African American literature Volume 1, pg.509) The positives is that the 13th, 14th, and 15th amendments were subsequently created to help improve the conditions of the African American community in America. The 13th Amendment (1865) outlawed slavery the 14th Amendment (1868) provided equal protection to African Americans under the law, and the15th Amendment (1870) granted suffrage to black men. (The Norton Anthology of African American literature Volume 1, pg.509) Another piece was Literacy as Liberation. The most interesting to part to know was there were African Americans at the time that published textbooks of Greek grammar and interpretations of the literature. They were William Sanders Scarborough and Anna Julia Cooper. People like them found that education in literature was essential for the African American community to grow. During this time African American began to create Biographies about other important African Americans in their history. Some of these titles include Life and Public Service of Martin R. Delany (1868) by Francis L Rollin, and Fredrick Douglas (1899) by Charles Chesnutt. (The Norton Anthology of African American literature Volume 1, pg.516) These biographies played a part in not only letting the African American community know about their history, but also to show Anglo-Americans that blacks have played a major role in shaping America. I have learned that many literary geniuses have come from the African American community even is salve infested times. Something that I think I can grow fond of but also be proud of. The fact that education played a large role in the literature excellence of the African American Community means that I should take my scholastic goals seriously, because the freedom to do so was not always the case. Gates, H. (2014). Literature of the Reconstruction to the New Nero Renaissance 1865-1919. In The Norton anthology of African American literature (3rd ed., Vol. 1, p. 509). New York, New York: W.W. Norton & Company. Gates, H. (2014). Literature of the Reconstruction to the New Nero Renaissance 1865-1919. In The Norton anthology of African American literature (3rd ed., Vol. 1, p. 516). New York, New York: W.W. Norton & Company.