Lines Of Communication (Un Series)

Format: 16mm

Sound: sound

Description: Traces the history of message exchange and the variety of transmission methods used from the heliograph of Caesar's time to the satellite relay of the present. Discusses the work of the International Telecommunications Union in coordinating and regulating communications among nations, advising new nations on skill and equipment and promoting literacy campaigns.

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Original permalink · Record added: 2023-02-28 05:44:52