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Telecommunications


Telecommunications

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Item Number:
SM K7865
Price:
$19.95
Format:
VHS
     Click for DVD Format   
Length:
13 min.
Copyright:
2002
Closed Caption:
Yes
Producer:
Schlessinger Media
Grade Level:
3 - 6
ISBN:
1572255870
UPC:
753201062833
Summary:
In Telecommunications, a visiting inventor investigating a stream of flying boulders discovers the islanders' primitive communication system and decides to help them upgrade to one that is more efficient and less dangerous. The inventor introduces the telephone -- a device that uses electricity, light and radio waves to transmit sound messages. The islanders discover that fiber-optic systems make communicating over long distances even easier than phone lines. They learn how fax machines work and how cell phones make it possible to talk to anyone almost anywhere in the world! Part of the multivolume series The Way Things Work, based on the best-selling book by David Macaulay. Includes a Teacher's Guide.

Only available in the US.


Series Name:
    Way Things Work Video Series, The



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