Ocean Waves Energy, Movement, and the Coast

Waves are the forward movement of the oceans water due to the oscillation of water particles by the frictional drag of wind over the waters surface. Size of a Wave Waves have crests (the peak of the wave) and troughs (the lowest point on the wave). The wavelength, or horizontal size of the wave, is determined by the horizontal distance between two crests or two troughs. The vertical size of the wave is determined by the vertical distance between the two. Waves travel in groups called wave trains. Different Kinds of Waves Waves can vary in size and strength based on wind speed and friction on the waters surface or outside factors such as boats. The small wave trains created by a boat’s movement on the water are called wake. By contrast, high winds and storms can generate large groups of wave trains with enormous energy. In addition, undersea earthquakes or other sharp motions in the seafloor can sometimes generate enormous waves, called tsunamis (inappropriately known as tidal waves) that can devastate entire coastlines. Finally, regular patterns of smooth, rounded waves in the open ocean are called swells. Swells are defined as mature undulations of water in the open ocean after wave energy has left the wave generating region. Like other waves, swells can range in size from small ripples to large, flat-crested waves. Wave Energy and Movement When studying waves, it is important to note that while it appears the water is moving forward, only a small amount of water is actually moving. Instead, it is the wave’s energy that is moving and since water is a flexible medium for energy transfer, it looks like the water itself is moving. In the open ocean, the friction moving the waves generates energy within the water. This energy is then passed between water molecules in ripples called waves of transition. When the water molecules receive the energy, they move forward slightly and form a circular pattern. As the water’s energy moves forward toward the shore and the depth decreases, the diameter of these circular patterns also decreases. When the diameter decreases, the patterns become elliptical and the entire wave’s speed slows. Because waves move in groups, they continue arriving behind the first and all of the waves are forced closer together since they are now moving slower. They then grow in height and steepness. When the waves become too high relative to the water’s depth, the wave’s stability is undermined and the entire wave topples onto the beach forming a breaker. Breakers come in different types -- all of which are determined by the slope of the shoreline. Plunging breakers are caused by a steep bottom; and spilling breakers signify that the shoreline has a gentle, gradual slope. The exchange of energy between water molecules also makes the ocean crisscrossed with waves traveling in all directions. At times, these waves meet and their interaction is called interference, of which there are two types. The first occurs when the crests and troughs between two waves align and they combine. This causes a dramatic increase in wave height. Waves can also cancel each other out though when a crest meets a trough or vice-versa. Eventually, these waves do reach the beach and the differing size of breakers hitting the beach is caused by interference farther out in the ocean. Ocean Waves and the Coast Since ocean waves are one of the most powerful natural phenomena on Earth, they have a significant impact on the shape of the Earth’s coastlines. Generally, they straighten coastlines. Sometimes though, headlands composed of rocks resistant to erosion jut into the ocean and force waves to bend around them. When this happens, the wave’s energy is spread out over multiple areas and different sections of the coastline receive different amounts of energy and are thus shaped differently by waves. One of the most famous examples of ocean waves impacting the coastline is that of the longshore or littoral current. These are ocean currents created by waves that are refracted as they reach the shoreline. They are generated in the surf zone when the front end of the wave is pushed onshore and slows. The back of the wave, which is still in deeper water moves faster and flows parallel to the coast. As more water arrives, a new portion of the current is pushed onshore, creating a zigzag pattern in the direction of the waves coming in. Longshore currents are important to the shape of the coastline because they exist in the surf zone and work with waves hitting the shore. As such, they receive large amounts of sand and other sediment and transport it down the shore as they flow. This material is called longshore drift and is essential to the building up of many of the world’s beaches. The movement of sand, gravel, and sediment with longshore drift is known as deposition. This is just one type of deposition affecting the world’s coasts though, and have features formed entirely through this process. Depositional coastlines are found along areas with gentle relief and a lot of available sediment. Coastal landforms caused by deposition include barrier spits, bay barriers, lagoons, tombolos  and even beaches themselves. A barrier spit is a landform made up of material deposited in a long ridge extending away from the coast. These partially block the mouth of a bay, but if they continue to grow and cut off the bay from the ocean, it becomes a bay barrier. A lagoon is the water body that is cut off from the ocean by the barrier. A tombolo is the landform created when deposition connects the shoreline with islands or other features. In addition to deposition, erosion also creates many of the coastal features found today. Some of these include cliffs, wave-cut platforms, sea caves, and arches. Erosion can also act in removing sand and sediment from beaches, especially on those that have heavy wave action. These features make it clear that ocean waves have a tremendous impact on the shape of the Earth’s coastlines. Their ability to erode rock and carry material away also exhibits their power and begins to explain why they are an important component of the study of physical geography.

The Flea by John Donne Essay - 1059 Words

The Flea by John Donne In the poem The Flea, by John Donne, the speaker uses a peculiar analogy in order to persuade his beloved to engage in premarital intercourse with him. The poem is composed of three stanzas that tell a story in chronological order about a flea that has sucked the blood of the two subjects. It tells the reader how the speaker attempts to persuade his beloved not to kill the flea because it is their marriage bed and then tells of how the woman still kills the flea but how the speaker uses that to take his argument one step further and explain how since it is so easy and guilt-free to kill the flea, the same could be said of her going to bed with the him. The structure†¦show more content†¦In the next phrase, â€Å"Me it sucked first, and now sucks thee, And in this flea our two bloods mingled be; Thou know’st that this cannot be said A sin, or shame, or loss of maidenhead†(3-6), we learn that the flea has bitten the two subjects and the author feels that through the flea, they have been joined together and the author indicates that that is what his beloved is not giving him – herself. He also feels that this act of the flea having both of their blood in its body is clearly not a sin or a big deal. He then goes on and says, â€Å"Yet this enjoys before it woo, And pampered swells with one blood made of two, And this, alas, is more than we would do†(7-10). The author is saying while the flea has sucked their blood and it is mixed together in his body and there is no shame in this, the speaker and his beloved still do not sleep together because she sees shame in that act. Here the flea is pampered and full of what he wants, but Donne is not and he purports this as unfair. The next stanza goes on to tell the reader how the woman is going to kill the flea and the speaker begs her not to do so. The author writes â€Å"Oh stay, three lives in one flea spare, Where we almost, nay more than married are. This flea is you and I, and this Our marriage bed and marriage temple is; Though parents grudge, and you, we are met,Show MoreRelatedThe Flea By John Donne883 Words   |  4 PagesJohn Donne was a contemporary of Shakespeare. His writing career occurred during the Renaissance. Poems about seduction were common during this era. The Flea by John Donne was a poem about a man urging his love interest into a sexual union with him by way of reason. In this time, premarital sex was considered a great sin and could get someone in a lot of trouble. The flea in this poem was used as a symbol of love and romance. A flea was one of the things that would least likely be used to describeRead MoreThe Flea By John Donne997 Words   |  4 Pagesâ€Å"The Flea†, by John Donne is a raunchy romantic poem that explains the speakers unyielding love that is represented by an insect. Using the insect to seduce his beloved after they both get bitten by the insect. As the speaker seduces his beloved, he involves her beliefs and values, intending to get his way with her no matter what it takes. But she doesn’t give in to his manipulation. As you read more deeply into the poem, we can also see the larger and symbolic meanings of this poem. For exampleRead MoreThe Flea By John Donne1558 Words   |  7 Pagesâ€Å"The Flea† Essay â€Å"The Flea† by John Donne when looked at briefly is simply a poem about a man trying to seduce a woman into participating in pre-material sexual relationship with him. However, â€Å"The Flea† constructs many more important arguments than simply that one. The poem touches on religion, love, and sex in a non-romanticized way, contrasting the normal glamorized stance seen in most of poetry. Most of John Donne’s poems have either romantic themes or religious themes; â€Å"The Flea† has both. ItRead MoreThe Flea By John Donne1314 Words   |  6 Pagescliches about love such as, cheeks like roses or, hearts pierced by the arrows of love.. John Donne, a well known poet of that time period writes many poems about love, but none using all those tired, worn out cliches. Donne brings his poems to life using vivid imagery and elaborately sustained metaphors known as conceits. (The Norton Anthology of English Literature, Vol. B 1260). In Donne s poem The Flea the reader gets to see more of a funny and amusing love poem, while his poem A Valediction:Read MoreThe Flea By John Donne Essay1497 Words   |  6 Pagesthe poem. The author John Donne has written many poems that could be interpreted in many ways, and are analyzed by many people in the United States and around the world. John Donne’s â€Å"The Flea†is a good example of a poem that can be analyzed for its physical and intellectual parts, and how they work together to make the poem what it is because it is descriptive, and can be interpreted in many ways. First, it is important to look at the physical parts of a poem. Donne’s â€Å"The Flea†is comprised of threeRead MoreThe Flea By John Donne1354 Words   |  6 Pagesmost notably that of intimacy. In John Donne’s poem â€Å"The Flea,† extended metaphor is used to explain that the act of intimacy does not matter whether it is performed before or after marriage. Also, explicit imagery is noticeable through the poem and outlines the underlying taboo topic being discussed. Another important detail, the flea within the poem is not only used as a comparison in the extended metaphor, but also as a symbol of innocence. In â€Å"The Flea,† Donne plainly spites the acceptance ofRead MoreThe Flea By John Donne Essay923 Words   |  4 Pagesimpression of â€Å"The Flea,† one does not expect an erotic love story. The title suggests a tiny insect may be the main focus of the poem, but this assumption proves to be incorrect. Using intense metaphors, ima gery, symbolism, and alliteration to perform his argument, the speaker is attempting to woo a lady in a rather repulsive romantic comedy approach. Throughout the couplets, the flea is personified and becomes symbolic of a much greater meaning. Although John Donne’s â€Å"The Flea† obviously discussesRead MoreEssay on The Flea by John Donne2357 Words   |  10 PagesThe Flea by John Donne â€Å"The Flea†, a witty poem of seduction and conceit, taken from John Donne’s â€Å"Songs and Sonets† is the poem that I have chosen to compare to â€Å"Song†, another poem of John Donne’s where he is passionately pleading with his wife not to be disheartened about his departure abroad. Both poems which belong to â€Å" Songs and Sonets†, written around the time of the 16th century, show that their title suggests they are both short poems, following the traditional form of a sonnetRead MoreThe Flea By John Donne And Easter Wings1412 Words   |  6 PagesIn the poems, â€Å"The Flea† by John Donne and â€Å"Easter Wings† by George Herbert use the literary device of a metaphor to convey the meaning of the poems. The use of metaphor by these two authors are essential to the themes of the poems. Metaphors are used to compare two different subjects to explain the poem. The metaphors in these poems draw from the central themes to help the reader understand the deeper meaning of the poem. â€Å"The Flea† uses the metaphor of the flea to explain the relationship of theRead MoreAnalysis Of The Poem The Flea By John Donne1033 Words   |  5 Pagesnoticeable influence. For example, in the poem, â€Å"The Flea†, by John Donne, initially it referred to a flea biting the speaker but as the reader proceeds further the perspective changes from this flea into the larger picture, which is a humorous little debate whether the speaker and his beloved will partake in premarital sex or not. Donne chose to word the poem in a format very similar to Frost’s definition of poetry. Donne begins using the flea as an analogy and this translates into the persuasive

Reflection on Humanities Free Essays

Reflection on Humanities Art is very important in our lives. It constitutes one of the oldest form and most important means of expression developed by man. It is a language, which is charged with feelings and significance that has sprung up among men living together. We will write a custom essay sample on Reflection on Humanities or any similar topic only for you Order Now For this, I am very glad to experience the beauty of arts, to meet arts within my body and soul. The teaching of the humanities is intended to make us students realize that the mere possession of knowledge is useless unless put to useful ends. Moreover, we would become aware that knowledge alone is meaningless unless it is accompanied by values, sentiments, priorities, insights, inter-relationships and other transcendent realities not subject to empirical proofs also form part of the person’s education. In the humanities, we, students are exposed to these, thus, the development of the whole person, which is the goal of humanities. The humanities are the stories, the ideas, and the words that help us make sense of our lives and our world. The humanities introduce us to people we have never met, places we have never visited, and ideas that may have never crossed our minds. By showing how others have lived and thought about life, the humanities help us decide what is important in our own lives and what we can do to make them better. By connecting us with other people, they point the way to answers about what is right or wrong, or what is true to our heritage and our history. The humanities help us address the challenges we face together in our families, our communities, and as a nation. I am blessed to have met Mr. Apas. I knew and realized the glaring importance and beauty of what he always tell us regarding culture and art in our humanities class. But I pray the effort for each of us to grasp at what he was aiming, might at the very least bring us to a better understanding of arts and culture. How to cite Reflection on Humanities, Papers

Crime and the Media free essay sample

To what extent is the medias portrayal of crime balanced and accurate? The essay will consider how accurately the media portrays crime, this will entail what types of crime stories they report on, whether or not those stories are biased, the impact they have on the publics perception of crime and the actual reality of crime in Australia. When we talk about the media we are not Just referring to one specific example of media, but many different types. The most common forms of media people talk about today are the newspapers; a form of print media, television and the nternet; a visual form of electronic media, and the radio; a verbal form of electronic media. There are other, minor forms of media including magazines, local newsletters and blogs but there isnt much attention given to them. In every media outlet there are Journalists and reporters who gather the information to be presented and then present it in the various different ways. Then behind them you have the powerful moguls (David Baker, 2010; CRJIOOI unit book p. 59) who control the media, although to get information on world issues, Australia generally relies on other sources like the American and I-JK media outlets. Depending on the media outlet, different crime related stories will be reported on. For example, a television or newspaper article will generally only choose a story that they have visual images for, whereas the radio stations do not use visuals and so can report on more stories. Generally though, all forms of media report on the same types of crime stories, the ones which have a certain amount of controversy, excitement or are Just horrifying so as to get the public interested or intrigued enough to listen, buy or watch it. This generates the majority of the medias revenue nd, in my opinion, most parts of the media are Just in it for the money. The majority of stories reported in the media, about crime, have something to do with violence or aggressiveness. Eg. Murder, assault and rape. However, corporate, white collar and political crime is largely neglected or put into a tiny insignificant part of a report because it does not sell as well. From that you could draw the conclusion that television and newspapers are somewhat biased in their approach to reporting crime and the types of crime they report. That being said, there are some restraints put upon some parts of the media which estrict what they can and cannot report on. Over the years criminologists have been able to determine that reporters and Journalists work to three kinds of restraints; Technical, Practical and Ideological. Chan 1987; Grabosky Wilson 1989; Ward 1995; Israel 1998; Brown 2003; Jawkes 2004; Crime and Justice: A Guide to Criminology, 3. 10) when a Journalist or reporter is putting together a story they have to meet the needs of the media outlet they are working for. For example, a television news program will want a visual image to go with what they are saying, but this annot always be done so they may choose not to report that particular story in detail and might add it as a small one minute story, if it is important enough, otherwise they will probably Just leave it out all together. A story also nas to be relatively easy to understand, generally in terms of goodies and baddies. (David Baker, 2010; CRJIOOI unit book p. 60) Television shows are less likely to report on a complex story that may be difficult to understand for the majority of the public because people would lose interest in it and turn to another channel. Due to the recent Global Financial Crisis ost media outlets have had to reduce the number of reporters and investigative journalists they can hire to do all the dirty work of digging around for useful information. This means that they have to rely more on media releases put out by the police and other influential bodies such as parliament and the courts and that they are somewhat limited in what they can report on. It would take too many of their valuable resources to follow along with a long and intricate story of major fraud or corruption case than it would to follow along with a bashing in the streets of Melbourne. Increasingly over the years the media have been adding a certain amount of entertaining properties to their news broadcasts and stories coined by the term Infotainment. By making news entertaining they will get more followers which will generate more revenue and so this is Just a money making scheme which brings about some ethical questions about the exploitation of crime for entertainment and profit. (Gerry Bloustien Mark Israel 2006; Crime and Justice: A Guide to Criminology, 3. 30) Stories related to crime sell well, no matter what medium they ome through, whether it be books or a newspaper article because, in my opinion, there is something interesting, intriguing and exciting about people going against the law and we want to know what happens to them. Television has become all about the ratings so they make a big hype about the stories they will be covering in future broadcasts in the hope that they will get people wanting to watch them. Obviously, because there is not going to be a major crime related story to report on every day, shows like A Current Affair try and expose people and businesses by using hidden equipment in their clothing. One such story on the 6th of April this year is a prime example of this. The story was on a car suspension company called Pedders and they revealed that this company had been scamming thousands of dollars from people going in for their $14 dollar suspension check and telling them they needed to replace major car parts. It turns out however that this story was not in its entirety, true. Many people on public forums have said that they have used Pedders and nothing like this has happened. When the media do stories like this Just to make news because there is nothing worth reporting on and they want money it becomes iased and we may not get the whole story, Just the side they want us to see. Peoples perception of crime varies widely, some people believe that we are being inundated and overrun by crime in Australia, Melbourne in particular, whereas other believe that it really is not that bad and there are places in the world that are far worse off than us, El Salvador in South America for one. The amount of actual crime cannot be different no matter which point of view you have so why is there so much difference in our perceptions of crime? It has to do with the way in which the media eport on crime and the way they portray it in their stories. Without access to accurate crime statistics most people will Just take what the media says about the subject as the truth because they nave little or no knowledge on the topic and t media seems like it does. The media is always reporting on crime and the victims of crime so the people, who watch, listen or read the different mediums may get the idea that Australia is vastly becoming a country where there is crime around every corner and you cannot trust anybody you do not know. It is very unlikely that you will pen up a newspaper these days without ever seeing a story about somebody committing a crime. Because of the excessive media coverage of crime and the way in which they cover it -to make it seem far more dramatic and exciting- they are increasing the fear of crime the public have. This fear of crime which has stemmed from the media attention it receives has been studied and some interesting conclusions have been drawn from these studies. The amount of concern or fear people show is related to where they live; high or low crime region, who you are; young old, male female (Chilvers 1999) and that the ajority of people are more fearful of situations that may arise outside of the home than in the home (Hale 1996). All are valid conclusions but the last one is intriguing. Although you would think that this can be explained easily by saying peoples homes are places where they believe they are safe and secure from crime and its effects. This statement is in all intents and purposes valid, however there may be more to it than that. Due to privacy laws, the media does not have access to peoples homes and so can rarely report on crimes in the home. Everyone knows that crimes do occur ithin peoples homes but the media cannot report extensively on these crimes. Because of this we do not get the perception that crime in the home is a major problem when compared to crime in the streets. We tend to think that what happens to the poor victims of crime in the home is awful but it will never happen to us. When the media begins to report on these issues of fear it does not help to stop it, in fact it usually has the reverse effect and the fear of crime begins to snowball and become worse until eventually you get what is called a Moral Panic. Moral panics ave been described as a condition, episode, person or group of persons which emerge to become defined as a threat to societal values and interests (Cohen, 1972). One of the most recent moral panics would be the situation described by the media/ politicians as the War on terror. After the horrific events of September 11 2001 and the numerous other terrorist attacks in various parts of the world, the media has inflamed the fear the public have towards things like that happening to us. Security at major sporting events such as the Australian open has been increased so much hat it sometimes can take hours to get into an arena. This, I believe, was the result of all the media attention given to terrorist attacks. The reality of crime is a whole different ball game, and from the statistics it is clear that the media has given us the wrong perceptions of what is going on in Australia. Seeing as the majority of people are more scared of crime happening outside the home lets have a look at that statistic. According to the Victorian Police crime statistics for 2008/2009 70% of all rapes recorded were reported as having happened in the home, 13,195 assaults were eported from the home, 67% of all burglaries happened inside the home and on the whole, 32. 9% of all crimes reported, happened inside the residential area.