My Hobby- Kayaking Essay

Ladies and gentlemen, I have come here to talk to you about one of my hobbies, kayaking. A common misconception is that a kayak is the same as a canoe, but this is not the case. There are a number of differences between a kayak and a canoe, the main difference is that in a kayak, you are enclosed, unlike in a canoe, whose cockpit is much like a boat. Also, a kayak is normally for one person only and a canoe is for a number of people. Finally, in general, a canoe has only one paddle. While a kayak has two that are joined together with one shaft. The word kayak means â€Å"hunter’s boat†. The kayak was developed by cultures in the arctic of North America for hunting. To these people, the kayak meant survival. Without it they couldn’t get food. There wasn’t much time for recreation. To obtain food they used kayaks to hunt in extremely harsh conditions. Archaeologists have found evidence that indicates kayaks to be at least 4000 years old. Hunting in a kayak was very dangerous. Sometimes a wounded animal wound attack the kayak, and walrus and whales were especially dangerous when injured. Occasionally the harpoon line would tangle and damage the kayak. Because the escaping normally was so hazardous, these people became quite proficient in the â€Å"Eskimo Roll† (where if you get flipped upside down, this is called capsizing, you flip yourself up again instead of exiting the kayak). The reason for this is that in emergencies, exiting the kayak into the water was very perilous; the animal that they were trying to hunt could be even more dangerous if they were attacked while inside of the water. Rolls that are thought of as tricks now were based on actual survival techniques. The hunter may have been hurt by a wounded animal or have their hand tangled in the harpoon line, and therefore the Eskimo roll is essential to avoid drowning These paddlers used jackets made from waterproof skins and seal intestines. Today, these waterproofs are also used as well, they are called cagoules,  but they are fortunately made of fabric! I like kayaking because it gives you a sense of freedom. The fresh air and water can be very refreshing and relaxing. A great thing about kayaking is its great diversity. The number of things that you can do and the many ways that you can do it is overwhelming. You can go with as many or as little people as you want. You can go in almost any weather as long as you wrap up warm in colder circumstances. You can do tricks such as the Eskimo roll. You can race your friends and even play games such as bulldog. Finally you can go on long sightseeing tours. The scenery is frequently breathtaking, you can get close to wildlife such fish swimming and it is not uncommon to see the adorable sight of a duck and a line of chicks following its mother. There is a large sense of satisfaction when you get better or learn something new. Today, these hunters have replaced their kayaks with motorboats, but kayaking has become a very popular form of recreation in other parts of the world. Today’s kayaks are mainly made of plastic and wood. Their design runs from small white-water boats to 20 foot long touring kayaks that can carry several week’s provisions. The reasons we paddle may have changed, but the kayak remains a quiet, efficient and fun means of transportation whose design has stood the test of time. Thank you for listening

Sterilization of Water

Project Report – Determination of the Dosage of Bleaching Powder Required for Sterilization of Different Samples of Water CONTENTS 1. INTRODUCTION 2. GENERAL METHODS USED 3. THEORY 4. REQUIREMENTS 5. PROCEDURE 6. OBSERVATION TABLES 7. CALCULATIONS 8. RESULT 9. CONCLUSION INTRODUCTION Water is the major constituent of all living beings. Water necessary to sustain all types of life. The water used for drinking purpose by human beings should full the following conditions : 1. It should be colourless. 2. It should not possess any smell. 3.It should contain any harmful dissolved salts such as nitrates, mercury salts, lead salts. 4. It should not be contain any living organism such as algae, fungus, bacteria etc. Sterilization of Disinfection of Water In order to obtain water for drinking purpose, water is first treated with alum whereby clay and other colloidal particles go precipitated the suspended impurities are then removed by filtration and the clear water obtained is subjecte d to some suitable treatment to destroy harmful germs and bacteria. These bacteria cause many dangerous disease such as cholera, thyroid, dysentery, tuberculosis, diphtheria etc.The process of killing the harmful bacteria by some suitable treatment of water is called STERILIZATION of DISINFECTION OF WATER. The common sterilizer agents are chlorine, ozone, bleaching powder, potassium per magnate chloramines. Sterilization of water through bleaching powder gives chlorine and if it is in excess, it is harmful for health and causes diseases like chlorawis, unconsciousness etc. So here we determine the exact amount of bleaching powder used of required for the sterilization of given samples of water. General Methods of Sterilizing WaterThere are many methods of sterilizing water but the best is one which gives sample of water which is totally free from germs. Sometimes potassium per magnate is used to disinfect water but it is not for drinking as it gives red colour and the excess of it i s in harmful for health. We use dissolve in water, so it can not be used in large scale. Another method for disinfection is by simply boiling the water for about 15 minutes, but this powder. The chemical action of bleaching powder on germs and bacteria is due to the chlorine which becomes available, when it is added to water.So here in the present context, we shall focus on disinfection of water using bleaching powder. Theory Objective :  Our objective of this project is to determine the amount of bleaching powder required for the sterilization of given samples of water. So certain steps are taken in the context as follows :- 1- A known mass of the given samples of bleaching powder is dissolved in water to prepare a solution of known concentration. This solution contains dissolved chlorine, liberated by the action of bleaching powder with water. CaOCl2  + H2O ——————-> Ca(OH)2  + Cl2 – The amount of chlorine present in the above solution is determined by treating a known volume of the above solution with excess of 10% potassium iodide solution, when equivalent amount of iodine is liberated. The iodine, thus liberated is then estimated by titrating it against a standard solution of sodium thiosulphate using starch solution as indicator. Cl2  + 2KI ——————–> 2KCl + I2 I2  + 2Na2S2O3  Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€> Na2S4O6  + 2NaI 3- A known volume of one of the given samples of water is treated with a known volume of bleaching powder solution.The amount of residual chlorines is determined by adding excess potassium iodine solution and then titrating against standard sodium thio-sulphate solution. 4- From the reading in 2 and 3, the amount of chloring and hence bleaching powder required for the disinfection of a given volume of the given sample of water can be calculated. Requirements for the Experimental Determination Requirements are as follows : Apparatus : 1. Burette 2. Titration Flask 3. 500 ml measuring flask 4. 100 ml Graduated Cylinder 5. 250 ml Measuring flask 6. 1lt. Measuring flask 7. Glazed Tile 8. Glass Wool. Chemicals : 1.Bleaching powder -5gm. 2. Na2SO4—->12. 4 gm. 3. KI – 25gm. 4. Different Sample of Water 5. Distilled Water 6. Soluble starch – 1gm. 7. Indicator – Starch Solution. Procedure : 1- Preparation of N/20 Na2SO4  solution : Take 12. 4 gm of sodium thio-sulphate hydrated and mix it in about 500ml of water then the mixture is diluted to make the volume 1000ml. or 1lt. Normality = strength/Molecular Mass. = 12. 4 / 248 = 1/20N 2- Preparation of 10%KI solution: Take 25gm. of KI powder and mix it in about 100ml of water then dilute the mixture to make the volume 250 ml and take it in the measuring flask. – Preparation of Bleaching Powder solution : Weight 5gm of bleaching powder and mix it in about 200 ml of distilled water in a conical flask. Stopper the f lask and shake it vigorously. The suspension thus obtained is filtered through glass wool in measuring flask of 500ml. and dilute the filtrate with water to make the volume 500 ml. The solution of obtained is 1% bleaching powder of solution. 4- Preparation of starch solution : Take about 1gm of soluble starch and 10 ml of distilled water in a test table mix vigorously to obtain a paste. Pour the paste in about 100ml. of hot water contained in a beaker with constant stirring.Boil the contents for 4-5min. and then allow to cool. 5- Take 100ml. of distilled of water and then 20ml of bleaching powder of solution in a stopper conical flask and add it 20ml of 10% KI solution. Shake the mixture, titrate this solution against N/20 Na2S2O3 Solution taken in burette. When solution in the conical flask becomes light yellow in colour add about 2ml of starch solution as indicator. The solution now becomes blue in colour. The end point is disappearance of blur colour, so continue titrating till t he blue colour just disappears. Repeat the titration to get a set of three readings. – Take 100ml of water sample in a conical flask and add 20ml of KI solution and stopper the flask. Shake it and titrates against N/20 Na2S2O3  until the solution become yellow. Then add 2ml of starch solution and then again titrate till the blue colour disappears. Repeat titration for three readings. 7- Repeat the step 6 with other samples of water and records the observation. Observation Table Titration : I * Volume of distilled water taken 100ml * Volume of bleaching powder sol. taken 20ml * Volume of KI solution added 20ml Burette Reading Sr. No. | Initial| Final| Final Vol. of 0. 2N Na2S2O3  sol. used| 1. | 1. ml| 0. 9ml| 7. 7ml| 2. | 0. 9ml| 16. 6ml| 7. 7ml| 3. | 16. 6ml| 24. 0ml| 7. 7ml| Titration : II * Volume of water sample I taken 100ml * Volume of bleaching powder sol. added 20ml * Volume of KI solution added 20ml Burette Reading Sr. No. | Initial| Final| Final Vol. of 0. 2N Na 2S2O3  sol. used| 1. | 10. 1 ml. | 16. 2 ml. | 6. 1 ml. | 2. | 16. 2 ml. | 22. 3 ml. | 6. 1 ml. | 3. | 22. 3 ml. | 28. 4 ml. | 6. 1 ml. | Titration : III * Volume of water sample I taken 100ml * Volume of bleaching powder sol. added 20ml * Volume of KI solution added 20ml Burette Reading Sr. No. | Initial| Final| Final Vol. of 0. 2N Na2S2O3  sol. sed| 1. | 8. 9 ml. | 14. 1 ml. | 5. 2 ml. | 2. | 14. 1 ml. | 19. 3 ml. | 5. 2 ml. | 3. | 19. 3 ml. | 14. 5 ml. | 5. 2 ml. | Titration : IV * Volume of water sample I taken 100ml * Volume of bleaching powder sol. added 20ml * Volume of KI solution added 20ml Burette Reading Sr. No. | Initial| Final| Final Vol. of 0. 2N Na2S2O3  sol. used| 1. | 16. 1 ml. | 21. 6 ml. | 5. 5 ml. | 2. | 21. 1 ml. | 27. 1 ml. | 5. 5 ml. | 3. | 27. 1 ml. | 32. 6 ml. | 5. 5 ml. | Calculations : Sample I (TAP WATER) Amount of bleaching powder used to disinfect 100ml of water samples I. = (7. 7 – 6. 1) ml of 0. 2 N of Na2S2O3  solution. 1. 6ml. 1ml of bleaching powder solution contains bleaching powder =5/500 = 0. 01gm. 20ml of bleaching powder solution = 7. 7ml of 0. 2N of Na2SO4 So 1ml of Na2S2O3  solution = 20/7. 7 ml of bleaching powder solution. Volume of bleaching powder solution used to disinfect 100ml of water = 1. 6 x 20/7. 7ml. 1. 6 x 20/7. 7 ml. of bleaching powder solution =1. 6 x 20 x 0. 01 gm / 7. 7 =  0. 4156 gm Calculations : Sample II (POND WATER) :- Amount of bleaching powder used to disinfect 100ml of water. = (7. 7 – 5. 2) ml of 0. 2 N Na2S2O3  solution = 2. 5ml 1ml of bleaching powder solution contains bleaching powder = 0. 1 gm. 7. 7ml. of 0. 2N Na2S2O3  = 20ml of bleaching powder solution So 1ml of Na2S2O3  = 20ml. of bleaching powder solution. Volume of CaoCl2  solution required to disinfect 100ml of water. = 2. 5 x 20/7. 7 ml. 2. 5 x 20/7. 7 ml. of bleaching powder solution. = 2. 5 x 20 x 0. 01 gm / 7. 7 of bleaching powder Amount of bleaching powder required to disinfect 1 let. of wate r. = 2. 5 x 20 x 0. 01 x 1000 / 7. 7 x 100 = 25 x 2/7. 7 =  0. 6493 gm. Calculations : Sample III (TANK WATER) :- Amount of bleaching powder used to disinfect 100ml of water. = (7. 7 – 5. 5 ) = 2. 2ml of 0. 2 N of Na2S2O3  solutions. ml of bleaching powder solution contains bleaching powder. = 5/500 = 0. 01gm 7. 7 ml. of 0. 2 N Na2S2O3  = 20ml of bleaching powder solution. so 1ml of 0. 2 N Na2S2O3  solution = 20/7. 7 ml volume of bleaching powder solution used to disinfect 100ml of water = 2. 2 x 20/7. 7 ml. 2. 2 x 20/7. 7 ml of bleaching powder solution = 2. 2 x 20 x 0. 01 gm / 7. 7 of bleaching powder Amount of bleaching powder used to disinfect 1 ltr. of water = 2. 2 x 20 x 0. 01 x 1000 / 7. 7 x 100 = 22 x 2/77 =  0. 5714gm Results Amount of the given samples of bleaching powder required to disinfect one liter of water :- Samples I = 0. 4156Samples II = 0. 6493 Samples III = 0. 5714 Thus we get the amount required for disinfection and if bleaching powder is taken less than this amount water will remain impure and if it taken in excess than this will also be harmful as it will contain chlorine. The results shows that Samples II is the imputes water as the amount of bleaching powder requires is maximum and Sample I is less impure than others as the bleaching powder used is minimum. The tables also show the difference. Titration III has minimum reading because of impurities and titration I has maximum reading because the sample was distilled water.Conclusion : This is the convenient method of sterilizing water. It leaves no impurities and its harmful effect if bleaching powder is taken in right amount. In this way we can calculate the amount of bleaching powder required for any sample of water and then take it in large amount if the water is to be disinfected in large scale as in water works. And thus the only cause of using bleaching powder to disinfect water instead of any other method is this that it kills all germs and bacteria due to its chemical action and provides us a pure sample of water to use for all purpose.

Sexual harassment Essay Example | Topics and Well Written Essays - 1500 words

Sexual harassment - Essay Example The American public figure and the publicist Warren Farrell is convinced, that we already for a long time live in conditions of matriarchy. According to Farrell, women during all the XX century were an exclusive class of the western society, and the feminist - their fighting group - have led struggle on the destruction of the already crushed opponent. Everyone can come to this conclusion that will approach to a question of an equality of sexes, using the system of universal criteria. Since women have received suffrages, they stable, simply by virtue of higher for a long time life, make the majority of the electorate. Especially zealously Ð ¤Ã °Ã'€Ã'€Ð µÃ »Ã » opposes the myth that women during the centuries were the victims of man's oppression, numerous requirements of fair indemnification are based on what statement in the form of profeminist policy.And for many results of the newest sociological researchers lead in Britain, show that exactly men most often are the victims of violence in the families. What is considered to be sexual harassment in civilized countries? Not only aspiration of the tyrant to the sexual coitus. Not only the threat, at which victim is offered or to obey to sexual requirements, or to suffer the consequences but also and obscene jokes, jokes, hints, indecent touches, - that is any actions unacceptable for the reasonable woman. The woman has the right to keep on the certain standards of behavior at work which should not include sexually directed behavior.

Article Review #4 Essay Example | Topics and Well Written Essays - 1000 words

Article Review #4 - Essay Example The planners of this operation knew that in order to do so, the true scale of the convoy must be hidden from Axis knowledge; once the Axis do learn of it, their leaders must be kept from knowing its true objectives and their forces must be kept preoccupied far from the intended landing sites of the Allied forces. In his article â€Å"Fortuitous endeavor: intelligence and deception in Operation Torch†, Commander Patch pieced together the planning and execution of this ambitious undertaking and underscored the significance of military deception and signals intelligence to its success. Torch planning commenced in August 1942 with the formation of the Armed Forces Headquarters (AFHQ) led by General Eisenhower. During the planning, signals intelligence (SIGINT) of Allied forces was greatly enhanced when the British’s Government Code and Cipher School (GCCS) broke down high-grade Axis cipher codes, providing a source of intelligence information known as ULTRA. The intelligence information gathered by Allied forces helped shaped the strategic and operational framework of Torch. Particularly, SIGINT sources provided decrypts and Y-intelligence that informed Torch planners about weather conditions in Axis-controlled areas, accounts of Axis order of battle, movements of Axis shipping and naval assets, intentions of Axis leaders, and the Axis’ perceptions of the intent of Allied Forces. The latter helped Torch planners gauge the efficacy of their deception measures, a strategy they employed to help secure their covert operation. Deception measures in war strategies have been valued as far back as the time of Sun Tzu but it has never been used in the scale that Operation Torch intended. Here again, signals intelligence played a key role. The extensive double-agent network controlled by British forces planted information that was to confuse the Axis forces regarding the true objectives of the massive

The nerve nurses need to start their own businesses Essay

The nerve nurses need to start their own businesses - Essay Example Let start with the statistics. Today, several million of new businesses are launched in the United States each year, and most of them end up being successful (Megginson and Smart, 2008, p.823). What this means is that, since, it is a relatively common practice, one who intends to put up his or her own, will never find a shortage of support. For example, financing may be available such as the so-called angel investors, who are typically locally wealthy business people who can invest $50,000 to over $200,000 in a new business (Megginson and Smart, p. 823). More importantly, however, is the fact that it is easy to navigate the process since there are existing and established norms because business is essentially an established technology, with established tasks, objectives and milestones (p.823). Some successful practitioners manage to take advantage of this condition and avoid risks by starting small and eventually finishing big. Consider a nurse who is currently working in an institut ion. She decides to start a small business that she could conduct while she is working as a nurse. It is more like part time work but it is a start. She sets up a nursing home business by accepting old people in the community who can no longer take care of themselves. She hires an employee and proceeded on charging $150 per day. Since these are adults and not very mobile wards, she is able to accept 6-7 elderly per day, with her staff and her help during her free time. So that would be about $900-1050 per day. The elderly population in her community is quite large, so the business is poised to be popular and expansion, inevitable. The above example demonstrated several of the opportunities and the abilities involved in starting a business. It also depicts how creativity can be rewarded with success. The approach was able to address the financial problem of securing a steady flow of capital with the plan, since the example cited how the nurse began the business while still working. T his is especially important in instances when financial loans are difficult to come by. This is true in the case women. Sometimes being female can be a disadvantage in securing loans (Fielden and Davidson, 2006, p.114). Private practice can also become rewarding since a nurse is in a more position to make a meaningful difference to his or her clients. This is because, in the course of the practice, there is an opportunity to immediately decide on additional services or modifications in service being provided. The following case study demonstrates this best: Mandy, a community pediatric nurse, thought she was selling home care for children. But when she questioned her patients and their families, she found that for the parents of sick children she provided reassurance, a source of reliable information, a shoulder to cry on and a tension diffuser†¦ The response of the patients varied according to their illness. One said, ‘You can change dressing without hurting me very much , and you always tell me a nice story when you come’, while another commented, ‘You make the morning go much quicker and you make sure I

Religion and Theology Essay Example | Topics and Well Written Essays - 250 words

Religion and Theology - Essay Example The approaches considered in the course's online lesson included the following: Modern Orthodoxy, Habad, Reform, Conservative, Reconstructionist, and Havurah. In addition, some Jews have ceased to practice Judaism entirely, have become non-religious while remaining Jewish culturally (by identity). The Reform Movement is capable of being present in the next 100 years. This is because it has accepted that the world is changing and this particular change is inevitable. The reform maintains that the Judaism and other various Jewish traditions should compatible and modernized with the culture surrounding the Jews (Meyer 45). This will make the Jews be more comfortable to remain religious than to quit altogether. The Jews currently identify with the reform movement more than any other Jew denominations. The percentage is 35% and this is considered high in relation to the other denominations such as Orthodox Judaism or Jewish Renewal movements (Multiple Pew Research Center staff, par. 10). This is another rationale behind why the Reform movement will be present in the next 100 years. The Reform movement has managed to eye the Jewish traditional beliefs though liberal thoughts lens and this has made it successful in incorporating modernity, autonomy, and universalism critical approach in the religion. This has made more Pew Jews to accept it and to increasingly embrace its innovative communal and theological creations. This will definitely be present a century from now.

Opening up a tavern at NDNU Article Example | Topics and Well Written Essays - 250 words

Opening up a tavern at NDNU - Article Example because this was what the contract with Bonjur provided for. Menlo College which is also a small university located nearby has the same situation as in NDNU in which its cafeteria operates between 17:30 p.m. until 19:30 p.m. for dinner but then has a tavern that opens at 19:00 p.m. until it closes at 23:00 p.m. Students are able to take snacks from burgers to sandwiches if they failed to take dinner at the cafeteria. Menlo students can use their meal plans (chits or â€Å"tavern money†) when ordering (C. Dixon, personal communications, January 28, 2014). This is the same idea that NDNU is going to offer its own students. â€Å"I do not have a car and if the caff is already closed, I have to wait until morning so I can have a real meal,† said Jay Tsuruoka, an NDNU student athlete. Nico Charvet, also a NDNU student athlete, is likewise agreeable to the idea of a different option, especially if the cafeteria is closed already after his soccer practice. â€Å"I am not hungry after practice so I eat much later,† he added. A survey will be conducted among the NDNU students to know what they might want in a menu of snack foods. The plan is to allow students to use their meal plans (called â€Å"flex dollars† in the NDNU community) in order to make the Tavern a success this time around (Hurst,

Information Technology Applications in Marketing Essay

Information Technology Applications in Marketing - Essay Example This is because digital media has numerous advantages like: search ability, speed, marketing interface and perhaps most importantly, data feedback. Digital media, therefore, transcends the constraints posed by physical media and incorporates the best of personal interactivity. More importantly, digital print has been known to reduce incremental cost of production, as well as, that of content acquisition and distribution. The reason why print media is dying is because every newspaper pays writers to acquire publishing content. This makes it difficult to compete with digital media, since the latter provides free content. In the past, printed media was the most influential platform for acquisition of information since there was no other basis of doing so. At the present time, numerous individuals have resorted to electronic media like websites, e-newspapers, and online television, among others. This has led to a huge drop in newspaper circulation for the past ten years. However, this do es not mean that print media is completely obsolete because up to today there are loyal readers that prefer to get news from newspapers and other print media (Reid, n.pag). This is a notion opposed by Josefowicz (n.pag)who insists that print media is bound to die owing to poor reception and increasing popularity of digital media at all societal levels. The principal sector likely to bear the brunt of print media deterioration is that will journalism. A journalist is forced to acquire distinctive information because the internet is a threat for print media. Despite the extensive efforts of acquiring information, it is made available to people who can easily access or even download it for free. For this reason, the print industry has to lower its cost in order to sustain competition in the news industry, and this will inevitably cause its failure and that of journalism. People have always paid for monthly subscriptions for newspaper or other print media like magazines. Currently, howe ver, individuals can acquire information free of charge from the internet, a principal predicament that is shaking the print media companies financially, because they do not have the capability to offer free information. However, as Josefowicz (n.pag) states, the internet is the big problem, but in some cases it can be utilized as a solution. Print media companies can earn revenue by borrowing the internet’s business model for increasing advertising. Nevertheless, print media is still effective and in some cases it holds a variety of advantages over digital media. For instance, print media offers tangibility, an element not available in digital media. This is crucial; magazines or newspapers can be preserved for future reference, while it is possible for internet advertisements or information to get lost into the cyber space under circumstances like virus attacks. Additionally, print media has credibility owing to its sense of legitimacy. This is due to the fact that informat ion is acquired by competent journalists, and is reviewed by editors before being unveiled to the public. This is unlike in digital media where virtually everyone can gain access to information and deliver it in a manner that lacks credibility. Content Marketing Content marketing refers to a promotion method of collecting as well as distributing

Transitions of Culture and Identity Essay Example | Topics and Well Written Essays - 1750 words

Transitions of Culture and Identity - Essay Example Proctor quotes James Clifford who said that â€Å"Once traveling is foregrounded as a cultural practice then dwelling too, needs to be reconceived†. The concept of traveling has redefined the ways in which home is an influence. As well, the difference between where one declares to be home and where one has traveled must be defined in order to situate the way in which one’s culture will be expressed. The difference depends on the identity that one decides to live within. If one has been raised on a Caribbean Island and has then moved to Britain, the question of identity has no real relevance to the official and legal place of residence.In contrast, it is possible to abandon the beliefs and traditions of home and to decide to adopt British traditions in order to fully integrate. Most often, it is somewhere in-between. The questions then become: Where does the naturalized culture stop and the adopted culture begin? What now defines the identity?The attachment to the concep t of home is married to the concept of the fear of homelessness. The need for home is as much about the fear of not having a home as it is about the existence of the dwelling itself. The problem with being ‘homeless’ is more than just not having an adequate roof and a place to put one’s things, but it is a sense of disconnection, the existence without roots and foundation. To be ‘home’ is to be in a place where one belongs, but to be homeless is to be within a space where there is not real social connection to the world.