Makers of the Telegraph : Samuel Morse, Ezra Cornell and Joseph Henry, Paperb...
49,14 €
Makers of the Telegraph : Samuel Morse, Ezra Cornell and Joseph Henry, Paperback by Lifshitz, Kenneth B., ISBN 1476665591, ISBN-13 9781476665597, Like New Used, Free shipping in the US "The single-wire telegraph revolutionized long distance communication but it was not the brainchild of one inventor, Samuel Morse. Ezra Cornell and Joseph Henry made crucial contributions. This book presents Morse as primarily a businessman and consolidator of ideas who, in conflict with his associates, sought to present the telegraph as a uniform system under his sole imprimatur"--
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