Project Gutenberg 2005-04-14 Public domain in the USA. 120 American School of Correspondence Armour Institute of Technology. American School of Correspondence American School at Armour Institute of Technology Cyclopedia of Telephony and Telegraphy, Vol. 1 A General Reference Work on Telephony, etc. etc. Reading ease score: 54.7 (10th to 12th grade). Somewhat difficult to read. Produced by Ronald Holder and the Online Distributed Proofreading Team at https://www.pgdp.net. "Cyclopedia of Telephony and Telegraphy, Vol. 1" by the American School of Correspondence is a comprehensive scientific publication written in the early 20th century. This work serves as a general reference on various aspects of telephony and telegraphy, including technical principles, equipment, systems, and their operations. It aims to provide engineers and technicians with an authoritative overview of the electrical transmission of intelligence, detailing the intricacies of devices and methodologies involved in communication. The opening of the cyclopedia introduces readers to the foundational concepts of telephony, discussing the historical significance of Alexander Graham Bell and his invention of the telephone. It explains critical principles, such as the nature of sound and its transmission through different mediums, as well as the workings of telephone and telegraph systems. The text emphasizes the complexity behind the simplicity of effective communication and sets the stage for in-depth discussions about acoustic principles, the development of switchboards, and the transmission mechanisms central to the functioning of telephony and telegraphy. (This is an automatically generated summary.) en Telephone Telegraph TK Text Technology Browsing: Computers & Technology Browsing: Encyclopedias/Dictionaries/Reference 1078598 1073419 2024-10-07T06:28:08.224344 2023-09-07T07:55:19.676645 text/html text/html 1051002 2020-12-14T09:58:41 text/html; charset=iso-8859-1 19733138 2020-12-14T09:58:42 text/html; charset=iso-8859-1 application/zip 18639669 2024-10-07T06:29:24.141434 application/epub+zip 18498271 2024-10-07T06:28:33.791783 application/epub+zip 385444 2024-10-07T06:28:14.155316 application/epub+zip 30107769 2024-10-07T06:29:52.642291 application/x-mobipocket-ebook 3555454 2024-10-07T06:28:54.762619 application/x-mobipocket-ebook 548960 2022-09-07T22:45:31.146748 application/x-mobipocket-ebook 821196 821109 2024-10-07T06:28:02.083369 2023-09-07T07:55:15.586594 text/plain; charset=us-ascii text/plain 821298 2020-12-14T09:58:41 text/plain; charset=iso-8859-1 255145 2020-12-14T09:58:41 text/plain; charset=iso-8859-1 application/zip 821339 2020-12-14T09:58:41 text/plain; charset=us-ascii 255092 2020-12-14T09:58:42 text/plain; charset=us-ascii application/zip 21446 2024-10-07T06:29:53.584261 application/rdf+xml 20098 2024-10-07T06:28:15.318306 image/jpeg 4482 2024-10-07T06:28:14.741311 image/jpeg 19797881 2024-10-07T06:28:10.135359 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog