Published by: DISCOVERY (Karma: 1711.74) on 12 February 2013 | Views: 4497
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The Way Things Work - Telecommunications
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!
