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by my_first_acct
3470 days ago
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Good point. So here is a compression scheme from about 350 BC, describing how to pass messages from one mountain peak to another, using a torch and a water clock [1][2]: "The water-clocks are an early long-distance-communication-system. Every communicating party had exactly the same jar, with a same-size-hole that was closed and the same amount of water in it. In the jar was a stick with different messages written on. When one party wanted to tell something to the other it made a fire-sign. When the other answered, both of them opened the hole at the same time. And with the help of another fire-sign closed it again at the same time, too. In the end the water covered the stick until the point of the wanted message." [1] http://www.mlahanas.de/Greeks/Communication.htm [2] http://www.mlahanas.de/Greeks/Technology/AncientGreekTechnol... |
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