Project Gutenberg 2025-03-22 Public domain in the USA. 142 Du Moncel, Th., comte 1821 1884 Du Moncel, Théodore A. L. (Théodore Achille Louis), comte Du Moncel, Theodore A. L. (Theodore Achille Louis), comte Du Moncel, Théodose Achille Louis, comte Du Moncel, Theodose Achille Louis, comte Moncel, Théodore Du Moncel, Th. du, comte Bonnafoux, B. Bonnafoux, L. Le téléphone, le microphone et le phonographe. English The telephone, the microphone and the phonograph The telephone, the microphone & the phonograph $aUnited Kingdom :$bKegan Paul, Trench, Trübner, & Co. Ltd., $c1892. deaurider and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "The Telephone, the Microphone & the Phonograph" by comte Th. Du Moncel is a scientific publication written in the late 19th century. The book focuses on the invention, development, and scientific principles underpinning the telephone, microphone, and phonograph, detailing their histories, mechanisms, and various applications. Drawing on the recent and rapid advances of the electrical era, it explores both the technical and practical aspects of these groundbreaking communication devices. The opening of the work establishes a historical context for the telephone by tracing humanity’s desire to transmit sound over distances, from ancient times to the 19th century. It highlights early experiments, such as those involving string telephones, and credits significant figures like Robert Hooke, Charles Wheatstone, Charles Bourseul, Elisha Gray, and Alexander Graham Bell for their roles in evolving the concept and technology of electrical sound transmission. The text delineates the transition from simple acoustic to electric methods, outlines the main disputes over priority, and introduces the principal technologies leading up to the Bell telephone. The narrative then proceeds to explain a range of early telephone designs—including musical telephones and speaking telephones—while also providing detailed descriptions of their construction and operation. (This is an automatically generated summary.) https://archive.org/details/ldpd_11231392_000 20240420053018dumoncel 1892 GB Reading ease score: 50.4 (10th to 12th grade). Somewhat difficult to read. en Telephone Microphone Phonograph TK Text Category: History - Modern (1750+) Category: Science - Physics Category: Engineering & Technology 601286 2025-07-30T04:43:35.226401 text/html 568843 2025-03-22T00:23:27 text/html 14079632 2025-07-30T04:43:46.450359 application/epub+zip 14077018 2025-07-30T04:43:38.193433 application/epub+zip 456006 2025-07-30T04:43:36.470361 application/epub+zip 14792711 2025-07-30T04:43:52.037316 application/x-mobipocket-ebook 14736999 2025-07-30T04:43:44.805372 application/x-mobipocket-ebook 514498 2025-07-30T04:43:33.669373 text/plain; charset=us-ascii 494468 2025-03-22T00:23:27 text/plain; charset=us-ascii 17639 2025-07-30T04:43:52.202276 application/rdf+xml 11913 2025-07-30T04:43:36.782367 image/jpeg 1651 2025-07-30T04:43:36.651347 image/jpeg 16922159 2025-07-30T04:43:35.592381 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog fr.wikipedia