Radio
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
Collections:
Religious Studies, Education, Psychology, History, Literature, Philosophy, Entire Library
...waves for a wireless communication system, gave a demonstration...radio receiver. The effective operating distance...for ship-to-shore communications. Following the establishment...now widely used for communications. Police and military...used in vehicles for communication while traveling, became...form of radio used for communication. Bibliography See...Schilling, Principles of Communications Systems (2d ed. 1986...