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thesis
oaioai:essuir.sumdu.edu.ua:123456789/28075

Scientific and technological progress. Advantages and disadvantages

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    Publication date
    1 January 2012
    Publisher
    'Sumy State University'

    Abstract

    The theme under consideration is divided into two parts: The History of Telephone and Innovations in Telephone Communications. In the past, people relied on letters to learn about what was going on in the lives of their friends or family members. The first electrical telegraph was constructed by Sir William Cooke. Another telegraph was developed and patented in the USA in 1837 by Samuel Morse. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2807

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    Electronic Sumy State University Institutional Repository

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    Last time updated on 22/08/2013

    This paper was published in Electronic Sumy State University Institutional Repository.

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