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is a shape of energy that isproduce about electric charge
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it is a fundamental tool in astronomy and each development or refinement of this instrument has allowed advances in our understanding of the universe
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it is a circular and mechanic element that turns around his axis, it was invented in the ancient mesopotamia
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global web of webs and computers that his purpose is allow the free exchange of information between all his users
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intended to reproduce texts and images on paper, vellum, cloth o other material.
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it is a device that allows the simultaneus transmitions and reception of sound over log distance
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it is a group of symbols and letlers that represent the sounds of the speak language
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with wheels used for transportation
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chemical reaction between a fuel and on oxidizer with the release of energy in the form of light and heat
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flat representation, reduce and simplify of the earth superf or of one part of thise