https://peertube.dngr.us/videos/watch/3336c8e9-0645-4df5-b425-53e49f70dadc Shows people's efforts to transmit messages through devices that have been invented to improve communication. Demonstrates the effects of telecommunications on the social, cultural, and economic life of modern society. Uses animation and live action to trace the history of communication from the 17th century to the present, and explains how each of the highlighted devices functions. Experiments with the battery, ground connections, electromagnet, and cable are illustrated. Discusses the contributions of Volta, Watson and Henry to Morse's development of the telegraph, Bell's work on the telephone, Marconi's discovery of wireless communications and De Forest's contribution to radio with the vacuum tube. Describes modern inventions such as germanium transistors, teletypes, wirephoto machines and television. Explains the effect of modern communication on everyday life and on connecting remote parts of the world. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD. For more information visit http://www.PeriscopeFilm.com Source: https://www.youtube.com/watch?v=dU3IbXip2rs Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Sat, 13 Jun 2026 05:31:03 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/3336c8e9-0645-4df5-b425-53e49f70dadc All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.