Forces of Gravity Essay Example for Free

Forces of Gravity Essay Throughout the course of the following investigation, I will be exploring a variety of methods to discover how a changed variable affects the speed in which a controlled type of paper (printer paper), formed into a model helicopter will descend from a specified height. Variables There is an abundance of variables in which I can change throughout the duration of this analysis that ultimately may have an affect on the speed that my helicopter falls. The first variable possible is the wingspan; my reason for choosing this variable in my investigation is that, as the surface area of the wing decreases, this leads to speed of the helicopter increases proportionally to the size of the wings. Evidence to support this is that the air resistance will have a smaller surface area and as the helicopter drops friction between the helicopter and the air molecules will convert kinetic energy into heat energy, if less wingspan is available their will be less friction, therefore the helicopter will fall faster. In order to ensure a fair investigation, I must consider the thickness of the paper I use to make my helicopter, as this too may affect the rate in which the helicopter falls therefore I will not be able to judge whether the wing length was the deciding factor or whether the type of paper had a decisive role. This leads me to my next variable I could choose to explore, which is the mass of the paper helicopter. In order to implement and successfully accomplish the effects on mass of the helicopter, I would add paper clips to the bottom, which on average have a total mass of 0. 25g to the helicopter. This supplementary weight would cause a greater resultant force in the favour of gravity, which would cause a greater acceleration. This is because the weight is great than the drag force, causing there to be an unbalanced force. The force necessary to accelerate an object by a given amount depends on the objects mass, therefore the greater the mass, the greater the force must be. Chosen Variable I have decided choosing the total surface area of the wingspan in my investigation and the reasoning behind this decision is that I believe this variable from my preliminary work would be much better to collect results from for my analysis. When executing my preliminary tests prior to this investigation, I noticed that when dropping my helicopter with an altered mass, the vertical acceleration time did not seem to have considerable differences between the starting and finishing points as it did for the wingspan. Therefore, this would make the investigation very difficult to accomplish since there is not much evidence to examine. So I have come to the decision of changing the wingspan, as I think it will provide a more reliable set of results, and will be able to explain more clearly in scientific reasoning for the increase in speed. Prediction. I believe that as I slowly decrease the helicopters wingspan by gradually measuring and cutting 1 cm off my wing length each time repeatedly should lead to an overall increase of the helicopters vertical acceleration. My plan is to be able to show that my hypothesis is correct but in order to ensure this I must be able to relate the information to the Speed formula to calculate the speed at which the helicopter gradually falls from the certain height. Overall, I believe the graph will show a negative correlation for both wingspan to time taken to fall and the Speed in relation to surface are of the wings.i ormula: Speed = Distance Time My prediction for the speed of the helicopter is that as the wingspan decreases the vertical speed of the paper helicopter increases, which I believe is as a result of the rotation of the wings going through a different cylinder of air each occasion, which suggests the fact that a wing span of 8cm would have a cylinder volume of air of ? r2. Therefore, as the wingspan decreases, the amount of air molecules contained inside the cylinder of air would be decreased proportionally to the wingspan. Furthermore, this would conclude in less air resistance against the force of gravity that forces the paper helicopter to fall because of the reduction of the wingspan, less air resistance would be needed to restrain the overall vertical acceleration. Although, as the helicopter gradually gains speed, the air resistances would increase likewise, until it becomes so great that it pushes against forces of Gravity, which ultimately forces the helicopter to vertically accelerate downwards. Nevertheless, eventually the resistance force will become equal to the opposing force, which in this case is Gravity, thus resulting the helicopter in not accelerating anymore since the forces are balanced. Therefore, it has met its Terminal Velocity (maximum speed). In relation to other theories, the three laws of Motion by Sir Isaac Newton begin to investigate Gravitational attraction and discovered that theres a gravitational attraction between all masses, giving everything a weight. This suggests that everything without air must have the same acceleration, which is ten m/s. This would mean that without gravity applying forces to push the helicopter downwards, it would still eventually land, because of its mass and because of this I would be made to believe that this may another reason for the acceleration of my helicopter. He also discovered that in most changes of Velocity, more than one force is acting on the accelerated object, such concurrent forces produce a signal net force. If the force pushing down on the helicopter is greater than the upwards draft, there will be a net force in the downward direction, therefore the helicopter will accelerate in that direction.

Free Siddhartha Essays: The River and the Mind/Body Dichotomy :: Hesse Siddhartha Essays

The River and the Mind/Body Dichotomy in Siddhartha In Herman Hesse's work Siddhartha, the primary physical symbol of division is the river. One side of the river represents "geist", or a realm concerned with the spiritual world. The second side represents "natur", the natural world where the flesh is engorged with pleasure and earthly satisfaction. Siddhartha begins on the spiritual side of the river. He is in training to become an excellent Brahmin like his father, much is expected of this intelligent and attractive young man. Yet Siddhartha feels a rumbling in his body and mind. His soul is not satisfied with the answers that he has received about problems in life. He feels the need to live his home in order to find these answers. He is willing to sacrifice security for insecurity and danger. His travels renew and strengthen his spirit. The structure of the story is centered around the apparatus of "iterative-durative time", a technique in which the author follows a loose linear chronlogy, with each part covering approximately twenty years, while only about one or two of those years are described in any detail. The effect easily lulls the reader into a perception of the passing time. He first spends time with a roving band of asceitics, forest-dwelling nomads that prefer to live a life of extreme sacrifice and self-denial. Siddhartha masters their art and goals, but shortly decides to move on after only a few years. He is not able to find his quest for salvation and understanding on such a path. Throughout his journey, his friend Govinda stays by his side. He decides to leave the town with him, come with him and practice with the ascetics, and then agrees to leave with him to seek out the Illustrious One, Gotama. Siddhartha does not find the answers to his spiritual queries here either, and decides to move on again. This time Govinda, his "shadow", decides to stay and make a niche for himself. Siddhartha strikes out on his own, crossing the center symbol of the river with the help of the boatman Vasudeva. After crossing the river he encounters an Indian woman who encourages him and allows him to kiss her nipple. His experience with the "natur" world has begun, hi s experiences of the sense being heightened and readied for a sensual deluge. He remains on the sensual side of the river for twenty years and in that time impregnates his seductive teacher and partner Kamala.

For my GCSE Geography research project I have been asked to look at the impacts of Tourism in Kenya

For my GCSE Geography research project I have been asked to look at the impacts of Tourism in Kenya. I am going to be covering background information, which includes; the physical features and tourist attractions, climate features, people of Kenya and cultural features, vegetation and wildlife. I am also going to be looking at the factors that have led to the growth of tourism in Kenya and the benefits and problems tourism has caused. Background information Kenya is a less economically developed country (LEDC) in east Africa. Kenya covers an area of 582,646 square kilometres – the United Kingdom is 244,100 square kilometres in area. Kenya has a population of around 30 million, compared with the UK's 60 million. Kenya is situated astride the equator and has a hot, tropical climate. The country is bordered by Tanzania, Uganda, Sudan, Ethiopia and Somalia and to Kenya's east is the Indian Ocean. Figure 1 shows the map of Africa and an arrow showing where Kenya is located. Physical features and tourist attractions In Kenya there are two basic areas, plains (low grassy areas) and Highlands (high, mountain areas). The plains are very active areas. The Natives go about their daily business of farming and doing chores all day. While animals like elephants and giraffes roam around freely. Some houses are built high up on poles so that the animals can't get at them. The flat coastal plain along the Indian Ocean varies in width from 15-70km, and the land then gradually rises up to the highlands. The Highlands are much more deserted. Kenya's highest mountain is named Mount Kenya. It towers over everything else in the country. The only areas left to name are the rural towns (the cities). There is really not much you can say about them, as they are most like what we live in. Buildings, roads, people wearing normal clothing, etc. That is the one odd thing about Kenya. It has both areas of traditional living (the way they've been doing it for hundreds of years) and rural living (modern things like the ones I just mentioned) One more thing about Kenya's physical features, they only have summertime. You may not think that affects the way the country looks, but think about it. Weather affects the animals, people, and buildings, pretty much everything. Kenya's tourist attractions range from safaris through game parks to beautiful beaches on the coast. Until 1969, tourism development had focused on Nairobi's hotels and on its game parks. Subsequently, coastal tourism received increasing attention, and tie-ins between game park and beach stays became more common, attracting visitors from East Africa and from overseas. Kenya's coasts offer intriguing cultural and historical surroundings including picturesque old Arab towns and the ruins of sixteenth-century Portuguese settlements. There are ideal conditions for SCUBA diving and game fishing together with 150 miles of unspoiled beaches protected from sharks by the great coral barrier reef. New cottage-style hotels draw on local architectural styles and decor and offer an international standard of luxury. Most visitors to Kenya, however, continue to come primarily to see its varied wildlife, in particular, the world's largest concentrations of elephant, giraffe, antelope, and zebra. Though hunting safaris have declined since their colonial heyday, restricted game hunting continues to draw enthusiasts. Kenya has an outstanding record among African countries in the protection and development of game parks and lodges. Climate features Kenya is divided by the equator into two almost equal parts. The region north of the equator is hot and receives comparatively little rain. The southern region falls into three zones. Kenya has a great climatic diversity that goes in parallel with the different geographic regions described elsewhere. As an Equatorial country, there is little variation in temperatures throughout the year. However, among regions there are great differences in average temperatures and rainfall. This climatologic diversity is mainly due to the winds and the altitude differences. The rainfall pattern is important because of its influence on wildlife and the road conditions. Upon the rains, many roads become flooded or muddy and are impassable. The rainy season is divided in two periods: the long rains fall between March and June, whereas the short rains take place between October and November. In general, temperatures are higher during the months corresponding to the boreal winter, i.e., January, February and March. Below is a graph showing the temperature and rainfall in Nairobi, Kenya. People of Kenya and cultural features Kenya has a very diverse population that includes most major language groups of Africa. Traditional pastoralists, rural farmers, Muslims, and urban residents of Nairobi and other cities contribute to the cosmopolitan culture. The standard of living in major cities, once relatively high compared to much of Sub-Saharan Africa, has been declining in recent years. Most city workers retain links with their rural, extended families and leave the city periodically to help work on the family farm. About 75% of the work force is engaged in agriculture, mainly as subsistence farmers. The urban sector employs 0.9 million people. The national motto of Kenya is harambee, meaning â€Å"pull together.† In that spirit, volunteers in hundreds of communities build schools, clinics, and other facilities each year and collect funds to send students abroad. The five state universities enroll about 38,000 students, representing some 25% of the Kenyan students who qualify for admission. Kenya is grouped into more than 70 ethnic groups, Some of the ethnic tribes are large e.g. the Agikuyu who form a majority of the population within their homeland in the central province and can also be seen to be in large numbers in the other districts in Kenya. The other large ethnic groups include the Luo, Luhya, Kamba and Kalenjin. There are also some groups of people who form a very small population. This includes the tribe of El Molo. Kenya's ethnic groups are divided into three linguistic groups namely; Bantu, Bukusu, Nilotes, Cushites and there are others. Many of Kenya's foremost cultural institutions are in either Nairobi or Mombassa. In Nairobi are the National Museums of Kenya, which include exhibits on natural history and geology; the Kenya National Archives; and the McMillan Memorial Library, with a special collection of Africana. In Mombassa is the Fort Jesus Museum, a history museum housed in a 16th-century Portuguese fort. The Kitale Museum features displays on scientific and historical topics. Vegetation and wildlife Vegetation in the north and northeast is sparse, primarily consisting of thorn bush. In the south area there are acacias and tree cacti of the Euphorbia genus. The giant Baobab (Adansonia digitata), of the Bombacacea family, outstands for its spectacularity, sometimes growing to 18m high and with the trunks reaching 9m in diameter. Its long and pulpy fruit is good for eating, and the bark is used for manufacturing ropes and cloth. Vegetation is more diverse and abundant only at the oasis in the north and northeast, in the river valleys and in areas such as Taà ¯Ã‚ ¿Ã‚ ½ta Hills, with an alpine-like landscape. Given the extension of the arid regions, the biggest part of Kenya's land consists of deserts or semi-deserted steppes. Most visitors to Kenya want to experience the country's world famous wildlife. But there are many different ways to experience the Kenyan wilderness. Whether you want to drive by a pride of lions in a four wheel drive, walk through herds of plains game, watch a herd of elephants from the comfortable veranda of a safari lodge, track game on horseback or search for rare birds in a thick rainforest, the possibilities are endless. Kenya's wilderness areas are famous worldwide. The name Kenya has become synonymous with the great wilds of Africa. But they represent far more than you would ever expect, protecting and showcasing a broad range of habitats and species. They are complex ecologies that depend on the conservation of diverse natural resources and systems. The Parks, Sanctuaries and Conservation areas co-exist with and depend on the communities that surround them, and work together to protect the future. From the depths of a coral reef to alpine mountains, from one of the worlds most endangered owls to a herd of wildebeest more than a million strong, the wilderness of Kenya is a wonder to behold. Factors that have led to growth of tourism Tourists are people who travel for pleasure. The tourist industry looks after the needs of tourists and provides the things that help them get to places to help them relax and enjoy themselves. Tourism is a big industry. It is one of the worlds fastest growing industries and in the near future it is expected to employ more people worldwide than any other industry. The growth of tourism in Kenya is due to the tourists being attracted to areas of great scenic beauty or where there is abundant wildlife. Kenya is a land of contrasts, and nowhere is this more apparent than in its range of altitudes. The hills and mountains of Kenya are a world apart from the lowland valleys and plains. High altitude Kenya offers something for everyone. There are refreshing hill walks through bird rich areas or more active hikes into montane forests. Above all there is mighty Mt Kenya, whose slopes are the perfect trekking destination. Kenya is the home of the safari. The boundless wilderness and big game of this region has long attracted adventure seekers from all over the globe. No other African country can boast such an incredible range of landscapes, unique geographical features and species. Kenya offers the visitor a chance to experience a natural world unchanged by the passage of time. The Kenyan wilderness is home to an endless array of ecosystems, the staging ground for natural cycles of life, death and regeneration as old as the planet itself. This great range of natural habitats means that there is plenty to explore, and plenty of species to encounter. The Massai Mara Game Reserve is widely considered to be Africa's greatest wildlife reserve. The Mara comprises 200 sq miles of open plains, woodlands and riverine forest. Contiguous with the plains of the Serengeti, the Mara is home to a breathtaking array of life. The vast grassland plains are scattered with herds of Zebra, Giraffe, Gazelle, and Topi. The Acacia forests abound with Birdlife and Monkeys. Elephants and Buffalo wallow in the wide Musiara Swamp. The Mara and Talek rivers are brimming with Hippos and Crocodiles. Other indicators of the growth in tourism are the increase in the number of tour operators and vehicle hire enterprises. Tourism is also a major source of employment for farmers and grocers, to construction, transport and financial services and to the purveyors of curios and souvenirs. The industry is labour intensive and hence its expansion generates more job opportunities than an equivalent expansion in other sectors of the economy. Besides, allied improvements in tourism infrastructure also catalyses other economic activities. It is estimated that well over 219,000 people are currently deriving their livelihood from tourism. In some streets in Central Nairobi and Mombassa half the shops are tourist-oriented. Benefits and Problems of Tourism The development of the tourist industry can bring many benefits and problems. Tourism in many parts on Kenya is a ‘double edged shroud' meaning blight as well as blessing but in my opinion I think that there is more problems than benefits. The development in the tourist industry can improve the chances of having a good holiday for tourists. Countries like Spain, Italy and Greece were once very poor and now have much higher standards of living due to increased tourism. The poorer developing countries have also followed their lead. Kenya, for example has used money from tourism to improve their schools, hospitals, roads and factories. Some of the money has also been spent on developing the tourist industry. There would also be a demand for locally produced food and souvenirs, jobs in hotels and restaurants, new amenities that locals could use. Coffee and tea production brought in more foreign exchange and income from tourism first exceeded that from coffee. In the Massai Mara the ultimate way of travel is in a hot air balloon. Hot air balloons are another source of income but it disturbs animals and they have driven some out. The rapid increase in tourism is overcrowding parts of Kenya and the increasing population growth in the drier areas of Kenya has led to pressure exceeding the carrying capacity of the land in relation to park management, which in turn has led to lower income. The problem of increasing visitors has led to an increase in the number of vehicle entries in the park. This tourist entry is suspected to disturb wild animals and damage natural vegetation by off road driving. The noise by the vehicle may also be disturbing to some wildlife. Its negative impact might be higher in long term. Increased tourist facilities have caused the loss of habitat and naturalness of the area. Lodges and attractive places have been spoilt by garbage and sewage disposal problems. Garbage attracts carrion-eaters such as hyenas, baboons, velvet monkeys and marabou storks. These problems are of concern to the reserve's management because animals can be obvious threats to people, including tourists. Another impact of garbage is that some scavengers, such as hyenas, may change their natural feeding habits and became permanent garbage feeders. In the Coast, the local residents are Muslims. The Islamic females have to dress their whole body to avoid attracting men but as tourists go by they show parts of their body that is forbidden for Muslims. The darker side about tourism is that the local people then go into drugs n drinking and prostitution. Ladies look for boys for sex, so instead of boys going to the church, they have sex with ladies for money and this is affecting society. Tourists diving and standing on the coral kill the living organisms, as they are extremely delicate and tender. Anchors being dropped of boats constantly batter the coral and it is illegal to harm the coral. Tourists take shells and starfish that are a vital link to the ecosystem. 140 tones of shells and coral are removed out every year for selling.

Theme Of Pride In Pride And Prejudice - 867 Words

In the novel Pride and Prejudice, Jane Austen has presented both positive and negative aspects of the two main theme—Pride and Prejudice. She has used a range of good examples and characters to demonstrate these two characteristics. She has also set different rewards or punishments for different characters, showing us both sides of being pride or prejudice. Pride was presented in two different ways, one shows us the sense of worth and self respect of a single, while the other one is conceit and arrogance. In the novel, Mr Darcy has definitely got pride, he is the richest man in the city and always values himself as the most important one in the small town. He did not expect anyone to be better than him. Mr Darcys pride about his†¦show more content†¦This is why she despises Mr Darcy for so long, but initially admires the lying Wickham. She thinks her initial opinions and ideas are always correct and this leads us to prejudice. Prejudice is affected by first impression and would also affect the personal thoughts of a person or an object in the future. The great prejudice which Lizzy holds toward Mr Darcy is just because their first unpleasant met at the ball. Within a few sentences, Mr Darcy has already given Lizzy a feeling that he is really pride and never cares for others feelings. This makes Lizzy to hold prejudice towards M r Darcy for a long time and leads to some misunderstanding between them as well. On the other hand, Mrs Bennet has prejudice towards Mr Darcy since the start of the book. I simply just hates him! Said by Mrs Bennet after the ball. Mrs Bennet had such strong prejudice towards Mr Darcy just because that he refused to dance with Elizabeth at the ball and embarrassed their whole family. As we can see here, prejudice is mostly depend on the first impression of a person. Some other good examples in the book includes the marriage between Mr Bingley and Miss Jane Bennet. Jane is pretty and well educated, she is also really lucky to meet Mr Bingley and get to marry him. Mr Bingley is hot, handsome, kind and rich, he has got every quality to be aShow MoreRelatedTheme of Identity Pride and Prejudice1369 Words   |  4 Pagesï » ¿Ã¢â‚¬Å"The presentation of the theme of identity is what draws the reader in† Explore the methods by which writers develop the theme of identity in the light of this statement. In Jane Austen’s novel Pride and Prejudice, there is a strong sense of identity in certain characters in the novel. Elizabeth has a high understanding of her own views and opinions, which often contrast with those around her â€Å"She had always felt that Charlotte’s opinion was not exactly like her own†. However, other charactersRead MorePride and Prejudice: Themes, Motifs, and Symbols1368 Words   |  6 PagesThemes Themes are the fundamental and often universal ideas explored in a literary work. 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