Stability of a Sailing Kayak :: physics kayak sport sports

"Strippers" they are often called, relate to the method of boat building is old and well perfected. It basically involves setting up a series of molds and then wrapping strips of wood around them. More specifically, I'm mostly using the method outlined in the book Kayakcraft which is a great set of instructions for anyone wanting to take on this type of project. The wood for this boat is clear cedar that has been ripped into 3/4" x 1/4" strips. Each of those then get a concave and convex edge. This a great method because then each strip fits together perfectly at any angle seen on the plans. The molds and raised construction surface are all made of particle board. It's cheap and easy to work with but you have to make sure it doesn't get wet. You can see in the photo how the strips fit over the molds. Eventually, all the wood inside and out will be coated with a clear epoxy over fiberglass which ultimately will provide most of the strength and all of the water resistance. The sail plan is going to be quite simple but could consist of either 1 or 2 sails. Each option has its benefits. Dividing the load of the wind between two sails would lower their center of effort and therefore lower their leverage on the boat. But, these are fairly small sails to begin with and, aerodynamically, larger sails are generally more efficient. So while having two sails would increase my stability, having one would likely increase the performance. The option I will likely choose will be two large sails that can be easily reefed (or taken down). Then you could travel with one, or both if the wind was light. This problem can be thought of as one of rotational motion due to force. As the wind pushes on the sail, the buoyant force and keel mass push in the opposite direction. So, if we can define all of the forces acting on the system, we should be able to say something about how the boat will react at certain wind speeds. One problem in determining the wind speed necessary for capsize is the changing function of this system's center of mass, particularly the people inside. Most boat models involve boats that are much more massive than their passengers but mine will weigh around 75 lbs and carry 2 passengers. Stability of a Sailing Kayak :: physics kayak sport sports "Strippers" they are often called, relate to the method of boat building is old and well perfected. It basically involves setting up a series of molds and then wrapping strips of wood around them. More specifically, I'm mostly using the method outlined in the book Kayakcraft which is a great set of instructions for anyone wanting to take on this type of project. The wood for this boat is clear cedar that has been ripped into 3/4" x 1/4" strips. Each of those then get a concave and convex edge. This a great method because then each strip fits together perfectly at any angle seen on the plans. The molds and raised construction surface are all made of particle board. It's cheap and easy to work with but you have to make sure it doesn't get wet. You can see in the photo how the strips fit over the molds. Eventually, all the wood inside and out will be coated with a clear epoxy over fiberglass which ultimately will provide most of the strength and all of the water resistance. The sail plan is going to be quite simple but could consist of either 1 or 2 sails. Each option has its benefits. Dividing the load of the wind between two sails would lower their center of effort and therefore lower their leverage on the boat. But, these are fairly small sails to begin with and, aerodynamically, larger sails are generally more efficient. So while having two sails would increase my stability, having one would likely increase the performance. The option I will likely choose will be two large sails that can be easily reefed (or taken down). Then you could travel with one, or both if the wind was light. This problem can be thought of as one of rotational motion due to force. As the wind pushes on the sail, the buoyant force and keel mass push in the opposite direction. So, if we can define all of the forces acting on the system, we should be able to say something about how the boat will react at certain wind speeds. One problem in determining the wind speed necessary for capsize is the changing function of this system's center of mass, particularly the people inside. Most boat models involve boats that are much more massive than their passengers but mine will weigh around 75 lbs and carry 2 passengers.

Report Writing, Household Waste Management Essay

Acknowledgements The team would like to convey its sincere gratitude to the youth members of Shimultala who participated as interviewers in the survey. Thanks are also extended to the Councilor Mr. A.K. Azad, members of the Local Project Management Committee and the people of Shimultala for their hospitality and support. Executive Summary: Being one of the third world developing countries, Bangladesh is still in the process of development of a sustainable and effective waste management system throughout the country. Though the scale of consumption of food, energy and other resources & products in Bangladesh is much less than any developed countries, waste management here is still poor due to lack of adequate knowledge amongst the people about how negatively this wastes can impact on peoples’ health, environment and aesthetic. The generation of waste here is increasing parallel with the growth of the country’s economy and infrastructure since waste generation is closely linked to population, urbanization and affluence. Human beings produce a variety of waste, which can be classified into two broad groups: organic and inorganic. Organic waste is biodegradable and generally decomposes fairly rapidly, while inorganic waste decomposes much more slowly. In Bangladesh like other developing countries with increasing population, prosperity and urbanization, it remains a major challenge for municipalities to collect, recycle, treat and dispose of increasing quantities of both organic and inorganic wastes. To determine how this report could assist in the management of waste, the team decided to carry out a survey in the Shimultola area to figure out what types of waste are being produced and how they are handled. A survey questionnaire was formulated for this purpose and a survey was carried out by the members of the team along with a small group of young people of Shimultola. The survey was carried out on a sample size of 159 household in the area out of which only 143 participated in the survey. Some heads of households were reluctant to take part in the survey for the following reasons: disagreement with the involvement of the youth as survey interviewers, refusal to disclose information about how they handle their waste, and the belief that waste management with the project is unnecessary because the people already  know what to do but are simply unorganized and irresponsible. Based on the evaluation of available data, the report recommends establishing a suitable location for every little area, which will serve as the communal dumpsite for non-recyclable inorganic waste. A feasible waste collection and disposal system should be established immediately. Waste separation should be encouraged and each waste type should be disposed of in an appropriate manner. The sale of recyclable material should be organized. Composting of organic waste should be encouraged. Existing waste management regulations and their enforcement should be reviewed and amended. A variety of awareness activities — targeting different age, gender and interest groups within the village — should be carried out to encourage proper and responsible disposal of waste. The general poor state of cleanliness and the continued use of open areas for dumping wastes are clear indications that the majority of the people are not convinced about the negative health and environmental impacts of improper waste disposal. In addition, although local regulations relating to waste disposal exist, they are simply not being enforced. In order to improve the situation, the people must make an effort to dispose of various types of waste in a responsible manner. The existing regulations should be reviewed and amended to improve monitoring and enforcement. A common dumpsite needs to be established, accompanied by a feasible collection and disposal system.

Free Essays on A Wizard of Earthsea

Gont lies in the North Reach of Archipelago. Ged lives on Gont; he became a famous man, but this tale is about the days before the songs about him were made. He was born as Duny in a small village and he was raised by his aunt who was a witch. She taught him the first lessons in magic. The boy learnt to listen to birds etc. This is the time when he gets his nickname Sparrowhawk. Some years later, the Kargad Empire attacked and Duny saved the village he lived in by creating a fog. This deed interested Ogion, the wizard of Gont. On his 13th birthday, Ogion names him Ged. After that, Ged goes with Ogion to learn magic. But Ogion's way of teaching things disappoints Ged, because Ogion doesn't teach him 'real magic', but he teaches him mostly things about the power of herbs. To hear, one must be silent. When Sparrowhawk goes searching for herbs, he meets a girl who asks him things he hasn't learnt yet, but Sparrowhawk says he can do it. Therefore, he goes to Ogion's books, but Ogion sees him. Since Sparrowhawk says he wants to learn things, Ogion offers to send him to Roke. Sparrowhawk goes with a boat, but the boat gets caught in a storm. The 'captain' wants to go to another island, but Ged says he sees a light on Roke. The others see nothing, but since he came with Ogion they believe him. And indeed they reach Roke. Ged goes to the school for wizards. To enter, he must say his name ( a man never says his name ), but Ged does so and he can enter. He goes to the Archmage and reads Ogion's letter to him. Later, Ged meets some other students: Jasper and Vetch. He likes Vetch, but he dislikes Jasper. At the school, Ged learns many things, but his antipathy against Jasper remains. He learns that in order to really change a thing, you have to know its real name ( its name in the Old Speech). Everything has its own name; when you know that name, you have power over it. Changing things is a dangerous matter, because you can disturb the Equi... Free Essays on A Wizard of Earthsea Free Essays on A Wizard of Earthsea Gont lies in the North Reach of Archipelago. Ged lives on Gont; he became a famous man, but this tale is about the days before the songs about him were made. He was born as Duny in a small village and he was raised by his aunt who was a witch. She taught him the first lessons in magic. The boy learnt to listen to birds etc. This is the time when he gets his nickname Sparrowhawk. Some years later, the Kargad Empire attacked and Duny saved the village he lived in by creating a fog. This deed interested Ogion, the wizard of Gont. On his 13th birthday, Ogion names him Ged. After that, Ged goes with Ogion to learn magic. But Ogion's way of teaching things disappoints Ged, because Ogion doesn't teach him 'real magic', but he teaches him mostly things about the power of herbs. To hear, one must be silent. When Sparrowhawk goes searching for herbs, he meets a girl who asks him things he hasn't learnt yet, but Sparrowhawk says he can do it. Therefore, he goes to Ogion's books, but Ogion sees him. Since Sparrowhawk says he wants to learn things, Ogion offers to send him to Roke. Sparrowhawk goes with a boat, but the boat gets caught in a storm. The 'captain' wants to go to another island, but Ged says he sees a light on Roke. The others see nothing, but since he came with Ogion they believe him. And indeed they reach Roke. Ged goes to the school for wizards. To enter, he must say his name ( a man never says his name ), but Ged does so and he can enter. He goes to the Archmage and reads Ogion's letter to him. Later, Ged meets some other students: Jasper and Vetch. He likes Vetch, but he dislikes Jasper. At the school, Ged learns many things, but his antipathy against Jasper remains. He learns that in order to really change a thing, you have to know its real name ( its name in the Old Speech). Everything has its own name; when you know that name, you have power over it. Changing things is a dangerous matter, because you can disturb the Equi...

CNG HOA XA HI CH NGHA VIT NAM Essays - Free Essays, Term Papers

CNG HOA XA HI CH NGHA VIT NAM Essays - Free Essays, Term Papers CNG HOA XA HI CH NGHA VIT NAM Djc lp - T do - Hnh Phuc BIEN BN CUC HP Thi gian bt dju: 13 gi, ngay 8/3/2017 Dja djim: Snh 1AB Dji hc Ton Djc Thng. Thanh phn tham d: Co Mai Hunh Phng Tho Va cac thanh vien trong nhom gm: Trn Th Thu Cuc Nguyn Ai Dinh Nguyn Hoang V Nguyn Thanh Cong Trn Th Thu Cuc Trn Th Van Trng Th Dim Thuy Le Kiu My Ni dung: Co hng dn cach tim bao, cu truc ca mt bai bao nghien cu, neu ra nhng djim cha phu hp trong cac bai bao ma cac t dja np. Cu truc ca mt bai bao nghien cu nh sau: + Abstract: djay la tom tt ni dung chinh ca bai. + Introduction + Literature review: trinh bay v nhng nghien cu trc djo lien quan djn ni dung bai bao. phn nay, cac t tim ra gi thit (hepothesis) va lp bng v nhng quan djim cac bai bao djc dj cp, trich dn nhng cau phat biu, nhn djnh quan trng. + Method: xac djnh phng phap nghien cu ca bai bao: djnh lng, djnh tinh, hoc kt hp. Tim ra mo hinh ( vi d: hi qui tuyn tinh) + Result: dja ra nhng bng s liu. + Conclusion: kt lun ca bai nghien cu. Co yeu cu cac nhom cha tim djc bao hoc cac nhom dja tim djc nhng bai bao cha tt gi t 10 djn 20 bai bao cho GVHD hn chot 24h th 7, ngay 11/2/2017. Cac t khong co mt ch djng lien lc vi thanh vien khac nu co thc mc. Cuc hp kt thuc vao luc 14h15, ngay 8 thang 3 nm 2017.

Political Cartoons, Chinese Immigration and the Manifest Destiny Essay

Political Cartoons, Chinese Immigration and the Manifest Destiny Belief - Essay Example The Whites, as a result, started portraying in negative stereotypes as evil and corrupt. With time, the Chinese population tripled and continued replacing those blacks and whites who were striking for higher wages. This led to Sino phobia a fear for Chinese people and as a result, the implementation of the Exclusion Act to control Chinese immigration. The Act resulted in a major decline among the Chinese population. The Chinese faced extreme violation of their rights but could do nothing since they were not citizens. The woman is an allegory of independence. She represents freedom from the hampering conditions.The Chinese man’s hair and cultural cloak represent resistance to American progress. Ironically, the woman has the railroad to the west inscribed in her dress meaning she is advocating for white civilization to the west. The cutting of the Chinese man’s hair is the significance of assimilation into the white culture. Manifest Destiny was a belief by the white Amer icans that they were to possess and occupy the North American Continent. People got lured to move westwards. In the belief, that they were to acquire large tracts of land at low prices. .The idea of Manifest Destiny thus relates to the image since the woman with the railroad inscribed in her gown symbolizes the Whites civilization towards the west despite resistance by the Chinese. It shows that the Whites will stop at nothing since they believe it is their divine right to do so. Reasons why the Chinese artists lacked recognition in the U.S in the 19th Century. Most of the immigrant races in America could blend into the Anglo society. Unfortunately,due to their physical appearance, The Chinese faced a lot of discrimination and got denied citizenship. Therefore, they had no access to justice in case their rights got violated. They lacked access to pursue professional painting. They did not have the resources to engage in the scholarly art. The Chinese were illiterate thus practicing painting as an art was difficult for them. Most of them had travelled to the States in pursuit of greener pastures to cater for their families. Unlike the Whites, the Chinese were not recorded for inclusion in the historical sources of art meaning there would be no source of remembrance for them. The Chinese rarely participated in the Western European art of oil painting that would have provided a platform to master and sharpen their skills. However, those who did such as Wore’s students received very little recognition. The Chinese focused only on their cultural heritage and whatever paintings they worked on got sent home to their families. They did not include European complements and signs of status. The Exclusion Act led to heightened Sino phobia. This led to confiscation of their art objects which made it difficult for them to practice the art profession. Part Two: Short Answered Questions 1. Significance of Edmonia Lewis’ Forever Free Sculpture The sculpture is a visual proof to a society in which the female is inferior to the male. It presents a reformed image of the African-American family after slavery.The role of women applied to free black people as well as to white people, and in this sense, Lewis' freedwoman got connected to all women.Like partner, the African-American female was supposed to be submissive and pious.The enslaved woman lived in paradox. She was both the

A talk show Essay Example | Topics and Well Written Essays - 250 words

A talk show - Essay Example Much like a caged lion, the already-burdened guest feels that he or she is being backed into a proverbial corner, forced to defend themselves against hostile strangers.  Much like a caged lion, the already-burdened guest feels that he or she is being backed into a proverbial corner, forced to defend themselves against hostile strangers.   The host and audience continue to try to break down these defenses with commentaries and verbal assaults against the guest, leading to erratic or violent explosions of anger.   Provoking hostility is not an ethical business behavior solely in the pursuit of gaining better ratings. Talk show hosts that engage in approval of psychological warfare have serious moral implications for society. When these hostile situations occur, it shows a breakdown of honorable and principled social behavior in contemporary society, illustrated by applauding audience members clearly entertained by guest aggression. Guests of talk shows should be treated with more sensitivity in order to avoid hostile outbursts and recognize their complex psychological needs in order to avoid future incidents of this type of behavior.

To what extent does a social phenomenon, like the 2008-to-present Essay

To what extent does a social phenomenon, like the 2008-to-present economic recession, influence or cause health behaviors - Essay Example A personal experience with regard to the effect of the economic crisis on health behaviors provided me with a clear picture of this issue. I still clearly remember when a friend’s father lost his job and the stress of tough financial conditions almost drove him mad. He worked in a clerical position at a factory that went bust during the recession in 2009. My friend had two younger siblings, who were 4 and 8 at the time. And like all children, they too wanted to have the same things that everyone else their age at school had. And thanks to the gadget race these days, children do want a lot then they used to. There is the Xbox, the Sony PlayStation and of course, the latest offerings from Apple to drive everyone wild with consumerism. Pair that up with an empty pocket and a mounting sense of despair and helplessness, and anyone would go out of their mind. My friends dad drunk himself to oblivion, but thank fully he was rescued after family and friends recognized the signs of dep ression. Others may not be so lucky. Economic distress has a direct relation to mental and psychological problems, as I have witnessed around me over the past few years. It is conventionally believed that health-related behavior usually deteriorates during economic recession. But interestingly, research shows an altogether new picture. It seems that when economy weakens, the mortality rates also go down and physical health improves. This cannot be said about mental health as evidenced by the sudden rise in suicide rate. According to recent research, a 1 percent increase in unemployment rate leads to a 0.3 percent to 0.5 percent decrease in the number of deaths (Ruhm, 2009). There can be several reasons for this phenomenon. First of all people do not get to drive (to and from work etc) and as a result decreasing car accident related deaths. Interestingly, there is also a substantial decrease in the number of heart attacks. This risk is perhaps the most reactive to the changes in