But before long distance communication in ancient times between humans is to use a simple approach, relying on the natural or imitating nature. As the core, such as the use of smoke, sound, light, or use the pigeon.Be not much effect Due to the inability to detailed information as well. Or even give details as well. But it does not feel safe, how much, such as, pigeons, the substance which give as many details, but is vulnerable because of the pigeon.The destination, however such communication, the communication at cheap prices. Fast enough available at present, which is the globalization era is an era of prosperity in the technology has brought human technology.Make communication at present very high efficiency. The convenient, fast and accurate, clear, of course.
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