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Yesterday & Today Long-Distance Communication

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Yesterday & Today Long-Distance Communication - Scarbrough, Mary Hertz
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Smoke signals, the telegraph, satellites, and the Internet are a few of the ways humans have sent messages over long distances. As long-distance communication methods increased in complexity over the years, the speed of delivery and distance traveled usually increased as well.

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Yesterday & Today Long-Distance Communication 2004, Blackbirch Press, San Diego, CA

ISBN-13: 9781567118322

Hardcover