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Free research papers and essays on topics related to: geothermal
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- Geothermal Energy - 553 words
Geothermal Energy Geothermal energy represents the inner heat of the earth, produced largely by the decay of radioactive elements in the mantle and center. The three ways that the heat is found is both wet and dry steam (wet steam has drops of water in it), hot water and dry volcanic rocks. We know that the temperature of the earth at depths of 25 to 50 km range from 200`C to 1000`C. There are areas of the earth where local concentrations of heat occur, just as mineral concentrations do. Most of these are located along oceanic ridges and continental rifts, such as the Ring of Fire. Geothermal energy is not free from environmental problems. The steam contains large amounts of hydrogen sulphid ...
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- Geothermal Energy Study Guide - 458 words
Geothermal Energy Study Guide GEOTHERMAL ENERGY S T U D Y G U I D E WHAT IS GEOTHERMAL ENERGY? BASICALLY GEOTHERMAL ENERGY IS HEAT THAT COMES FROM WITHIN THE EARTH. "GEO" MEANS EARTH AND "THERMAL" MEANS HEAT. GEOTHERMAL ENERGY IS EARTH'S INTERIOR HEAT MADE AVAILABLE BY EXTRACTING IT FROM HOT ROCKS AND WATER. HOW IS IT CREATED? GEOTHERMAL ENERGY COMES FROM DEEP WITHIN THE EARTH'S CORE. IN THE UPPER MANTEL OF THE CRUST IS WHERE THE HEAT IS PRODUCED MOSTLY BY THE DECAY OF RADIOACTIVE ELEMENTS. THROUGH DIFFUSION THE GEO THERMAL ENERGY IS MOVED TO THE SURFACE OF THE EARTH. MOST COMMON OCCURRENCES OF THIS GEOTHERMAL ENERGY ARE GEYSERS AND HOT SPRINGS. WHEN THE WATER OF HOT SPRINGS AND GEYSERS ARE ...
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- Bacteria Reproduction - 916 words
Bacteria Reproduction Bacteria are microscopic singular celled organisms grouped in the prokaryote kingdom. They have a seemingly simple internal structure but that is not so the internal structure of a bacterium is quite complicated . Bacterial growth is generally studied in cell cultures by "visible count" estimation which shows an apparent growth curve. (Stephenson 50) The growth curve shows the stages of bacterial growth within a cell culture. (Thimann 623). Bacteria can survive in a number of different extreme environments from extreme heat to little water. Bacterium have a internal structure that is more complicated than it seems at first. The first part of the bacterium is the plasma ...
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- Cannabis Hemp Marijuana - 2,262 words
Cannabis Hemp. . .Marijuana! Article copied work for work from April 1990 Issue of High Times Magazine pages 37-41 and page 57. "OUR CHALLENGE TO THE WORLD: TRY TO PROVE US WRONG-- If all fossil fuels and their derivatives (coal, oil, natural gas, synthetic fibers and petrochemicals) as well as the deforestation of trees for paper and agriculture (e.g., Brazilian & Indonesian rainforests), are banned from use in order to save the planet, preserve the ozone layer and reverse the greenhouse effect with its global warming trend: Then there is only one known renewable natural resource able to provide all(underlined) of the following goods and essentials such as paper and textiles; meet all of th ...
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- El Salvador - 1,363 words
El Salvador Kelly Pire 2/15/01 World Geography report El Salvador Here are historical facts on El Salvador. The history of El Salvador revolves around land. It is the smallest country in Central America. Agriculture defined the economic life of the country well before the arrival of the Spanish conquistadors in the early 1500s. The unequal distribution of land in El Salvador can be traced directly to the Spanish colonial system, under which land title was invested in the crown. The individuals that got to control areas of land acted, as slaves over the lands. Although the Indian population gradually was diminished through disease and abuse, it eventually went into a growing mestizo (mixed Ca ...
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- Energy - 1,130 words
Energy Energy is the ability to do work. The two different types of energy are kinetic and potential. Kinetic energy is energy in motion and potential energy is energy that is stored. Energy is measured in units which are BTU (British thermal unit) and a joule. The Law of Conservation of Energy states that energy can't be created or destroyed, but it can be changed in form. Heat is a form of energy that comes in different forms such as conduction, convection, and radiation. Conduction is when energy is passed directly from one item to another. Metals are excellent conductors of energy. Plastics or other materials aren't. These are called insulators. Convection is the movement of gases or liq ...
Related: kinetic energy, thermal energy, wind energy, alternative fuel, power plants
- Hydroelectric Power - 456 words
Hydroelectric Power Kevin Shah Period 3 Hydroelectric Power One of the earliest ways to harness power is to use the powerful flow of water. On September 30th, 1882, in Appleton, Wisconsin, the first ever dam was built. Since then, over 2,044 billion-kilowatt hours have been produced each day, worldwide. This source of energy is being used more and more days, because it is so dependable. But, how does it actually work and produce electricity? First of all, dams are located in a position where water moves swiftly and quickly. This is very important. When the water enters the dam, it goes through a series of giant pipes. At this point, the water hit the paddles of the turbine, causing it to spi ...
Related: hydroelectric, nuclear power, solar power, wind power, wind energy
- Kyoto Protocol: Advantages And Limitations - 1,721 words
Kyoto Protocol: Advantages And Limitations The Kyoto Protocol: Advantages and Limitations The advent of industrialized civilization has brought to us many remarkable feats that enhance our everyday lives. Such things as automobiles, airplanes, tractors, mainframe computers, and even relatively simple machines like lawnmowers have intertwined themselves into the everyday culture of modern day industrialized countries.. These products have provided us enormous benefits compared to the types of lives our ancestors used to live. In the eyes of some, the consequences of industrial activities that have evolved around the world will not pose any problems in the future, however as most have realized ...
Related: kyoto, kyoto protocol, global climate, carbon dioxide, sophisticated
- Mexico - 3,415 words
Mexico Mexico Country Profile Country Formal Name: United Mexican States (Estados Unidos Mexicans). Short Form: Mexico. Term for Citizen(s): Mexican(s). Capital: Mexico City (called Mééxico or Ciudad de Mééxico in country). Date of Independence: September 16, 1810 (from Spain). National Holidays: May 5, commemorating the victory over the French at the Battle of Puebla; September 16, Independence Day. Mexico Geography Size: 1,972,550 square kilometers--third largest nation in Latin America (after Brazil and Argentina). Topography: Various massive mountain ranges including Sierra Madre Occidental in west, Sierra Madre Oriental in east, Cordillera Neovolcá&aac ...
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- Sources Of Energy - 1,387 words
Sources Of Energy Sources of Energy Have you ever thought about how we get the energy to run the things we take for granite every single day. There are many sources of energy that that are used for transportation, heat, light, and the manufacturing of goods of all kinds. The development of science and civilization is closely linked to the availability of energy in useful forms. The seven main energy sources are fossil fuels, hydroelectric, solar power, win power, geothermal, nuclear power, and biomass energy. By harnessing the sun, wind, falling water, plant matter, and heat from the earth, energy planners expect to decrease the environmental impact on energy use. Most of the nonhydro renewa ...
Related: renewable energy, solar energy, solid waste, bodies of water, facility
- Sources Of Energy - 1,368 words
... temperature and contaminant-free environments. Solar cooling can be achieved through the use of solar energy as a heat source in an absorption cooling cycle. Solar power research is being pursued in connection with efforts to design residential and commercial buildings that will use energy more efficiently. Some other promising devices are solar collectors and solar mirrors. Solar energy is a very expensive process that take years to develop the technology for it. This energy can only be used in the daylight ( when the sun is out ), so during the night you wouldn't have energy then. Another important source of energy is wind power. The most popular device is a mechanical device that harn ...
Related: energy source, geothermal energy, nuclear energy, renewable energy, solar energy
- Tibet - 1,346 words
Tibet China Tibet, also known as TAR, is a democratic region in China that is very poor, and is mainly inhabited by Buddhists. Throughout its long history, Tibet at times has governed itself as an independent state and at other times has had various levels of association with China. Whatever China 's involvement in Tibetan affairs, Tibet's internal government was for centuries a theocracy, under the leadership of Buddhist lamas, or monks. In 1959 the Dalai Lama fled to India during a Tibetan revolt against Chinese control in the region. China then took complete control of Tibet, installing a sympathetic Tibetan ruler and, in 1965, replacing with a Communist administration (Encarta 1). The TA ...
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- Volcano Facts - 967 words
Volcano Facts Hot! Fire! Destruction! These are words that most people associate with volcanoes. But some good effects can come out of volcanoes. Volcanoes also have their own special mythology associated with them. A lot of volcanoes have some general characteristics in common. There are many volcanoes around the world and some have special characteristics. So come along and take a trip with me into the wonderful and exciting world of volcanoes. Over 550 volcanoes have erupted on the surface of the Earth since human kind has been able to record history. Their destructiveness has claimed the lives of over 200,000 people during the last 500 years with 26,000 deaths between 1980 and 1990 alone ...
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- Volcano Mount Vesuvius - 1,449 words
... volcanic rocks. Blocky, nonvesicular fragments of juvenile fragments point to some magma-water interactions at this stage (13). The eruption rapidly gained energy as more vents opened on the flanks of the cone ejecting pyroclastics at a growing mass eruption rate. Soon after the beginning of the eruption, a large eruption column rose up, attaining the famous shape of a pine tree. The height of the eruption column at this stage exceeded 20 km and may have reached up to 28 km, thus the eruption was Plinian. Ash began to fall around the volcano about one hour after the start of the activity, but heavy block and scoria fall began at about 1000 in the direction of Ottaviano (north east side o ...
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- Volcanoes - 1,909 words
Volcanoes By Tricia Severson 2nd hour Science 4/30/98 A volcano is a vent, or opening, in the surface of the Earth through which magma and associated gases and ash erupt. The word also refers to the form or structure, usually conical, produced by accumulations of erupted material. Volcanoes occur mainly near plate tectonic boundaries and are especially common around the Pacific basin, called the Pacific Ring of Fire (see Plate Tectonics). Humanity has long been awed by this powerful force of nature. The Romans attributed volcanic events to Vulcan, the god of fire and metalworking. In AD 79 the eruption of Mount Vesuvius destroyed the Roman cities of Pompeii and Herculaneum. Polynesians belie ...
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