GEOGRAPHIC INFORMATION SYSTEM

 What is GIS?

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AUXILIARY SCIENCES RELATED WITH GEOGRAPHY

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 sciences and their contribution to geography ECOLOGY:   Science that studies the problems of the environment. In support of geography, geo-ecology originates, a science that studies the environment with the intention of diminishing the impact of man in the natural terrestrial landscape without limiting the survival of the species. COSMOLOGY:   Science that studies the history and evolution of the universe, is closely related to geography being the one that explains the origin of the different characteristics that make up the soils and the matter of the planet. POLITICS:   It is the science that studies the organization of the social strata of human beings. By supporting geography geopolitics originates, which studies the influence that terrestrial resources have on the organization of human society. ASTRONOMY:  Supporting geography arises geo-astronomy. Although much has been studied on the subject, it is not yet accepted as part of the exact sciences the influ...
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MAGNETIC FIELD

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  What does the magnetic field mean? Definition: A magnetic field is a force field created as a result of the movement of electric charges (flow of electricity). The strength (intensity or current) of a magnetic field is measured in Gauss (G) or Tesla (T). The flux decreases with the distance to the source that causes the field. How does a magnetic field work? Magnetism is a physical phenomenon by which objects exert forces of attraction or repulsion on other materials. The only known natural magnet is a mineral called magnetite, however, all materials are influenced, to a greater or lesser extent, by the presence of a magnetic field. HOMEMADE COMPASS Our planet acts like a giant magnet, creating a magnetic field that shields Earth from radiation from space. Magnetized metals naturally align with that field, and one can take advantage of that invisible effect in the experiment that shows us how to magnetize a needle to create a compass. What we need? A sewing needle A cork or plast...
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