Detailed prediction of ocean tides from theories of classical mechanics and hydrodynamics has not been entirely successful, largely because of complications introduced by the irregular shape of the ocean basins and coastlines. Useful results are obtained empirically by analyzing records of previous tides at a particular location to predict future tides. The importance of tides for maritime activities has prompted the compilation of tide tables for harbors, which give the time and height of high water and low water based on past observations and corrected for the varying positions of celestial bodies.
Online Encyclopedia Blog For Kid's Research In Sciences, Health, Environment and Technology
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Pollution exists in many forms and affects many different aspects of Earth’s environment. Point-source pollution comes from specific, locali...
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Air Pollution, addition of harmful substances to the atmosphere resulting in damage to the environment, human health, and quality of life. O...
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Soil is a mixture of mineral, plant, and animal materials that forms during a long process that may take thousands of years. It is necessary...
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Water Pollution, contamination of streams, lakes, underground water, bays, or oceans by substances harmful to living things. Water is necess...
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Solid wastes are unwanted solid materials such as garbage, paper, plastics and other synthetic materials, metals, and wood. Billions of tons...