DAMS: GOOD OR BAD Introduction The unequal availability of resources leads to the development of methods to store them. Water as the prime resource for survival has been the determining factor for human settlements‚ been the sole reason for communities to thrive and for long formed the basis for wars. In locations where the appearance of rainfall is scanty and unreliable‚ the need to store water has given rise to the creation of ‘tankas’‚ creation of man-made lakes and similar reservoirs
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roll on‚ Columbia‚ roll on! -Woody Guthrie‚ "RollOn Columbia."(1941) In EncountersWith the Archdruid‚ 1971 biographical account of a environmentalistDavid Brower‚writer John McPhee comments that for conservationists‚ there is something special about dams‚ "something-as conversation problems go-that is disproportionately and metaphysically sinister." McPhee continues: The outermost circle of the Devil’s world seems to be a moat filled mainly with DDT. Next to it is a moat of burning gasoline. Within
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the word dam can be traced back to Middle English‚[1] and before that‚ from Middle Dutch‚ as seen in the names of many old cities.[2] Early dam building took place in Mesopotamia and the Middle East. Dams were used to control the water level‚ for Mesopotamia’s weather affected the Tigris and Euphrates rivers‚ and could be quite unpredictable. The earliest known dam is the Jawa Dam in Jordan‚ 100 kilometres (62 mi) northeast of the capital Amman. This gravity dam featured an originally 9 m (30 ft)
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DAMS [pic] INTRODUCTION A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water‚ while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are often used in conjunction with dams to provide clean electricity for millions of consumers. It can also be used to collect water or for storage of water which can
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The Franklin Dam Franklin Dam The Franklin Dam or Gordon-below-Franklin Dam project was an attempt to dam the Gordon River in Tasmania‚ Australia‚ for the purposes of hydroelectricity. This would have subsequently destroyed the environmentally sensitive Franklin River‚ which joined the Gordon nearby. During the campaign against the dam‚ both areas were World Heritage listed. Over the five years between the announcement of the dam proposal in 1978 and the axing of the plans in 1983‚ there
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A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water‚ while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are often used in conjunction with dams to generate electricity. A dam can also be used to collect water or for storage of water which can be evenly distributed between locations.
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Hydroelectric Dams Introduction In this Alternative Energy Project you are going to read about Hydroelectric Dams‚ and learn how Hydroelectric Dams work. You will also be reading the disadvantages and advantages of hydroelectric dams‚ and more. How does Hydroelectric Dams work? Hydroelectric Dams works by letting the energy of the water flow turn into an electric voltage. Then water goes through a series of turbines‚ then the water makes the turbines turn‚ and then it creates electricity
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Hoover Dam The Hoover Dam is one of America¡¦s greatest civil engineering marvels (Hernan 22) and ¡§has become a magnet to those fascinated by human ingenuity at its best¡¨ (Haussler 30). With its enormous size and construction during the Great Depression‚ it was an interesting topic to me. I would like to major in civil engineering and‚ at first‚ I was researching this topic. I was looking for salary and job descriptions. Then‚ I discovered the name John L. Savage‚ the engineer who supervised
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Advantages & Disadvantages of Three Gorges Dam Here we present the pros and cons of world famous and gigantic Three Gorges Dam project. The Three Gorges Dam is the most famous and most gigantic project of the world. But‚ everything has two sides‚ so here we present the advantages and disadvantages of China’s Three Gorges Dam‚ namely its pros and cons. Supporters say the benefits of the project far outweigh the costs. The principal advantage of the project is to generate power to keep pace with
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Dams of India have been built across many perennial rivers since the independence of India. These dams in India are a part of several multi-purpose projects to serve a variety of needs. In a multi-purpose project‚ a river forms a unit and a river valley is developed‚ by exploiting all the resources of the river. Basically‚ dams are built to harness the river water so that it can be utilised according to the needs. A multipurpose project is launched often for storing water for irrigation purposes
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