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Publishing Programs |
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To make their work available to as wide a market as possible, the publication of newsletters, magazines and books forms one of the key elements of most think tanks. Therefore most of these institutions undertake extensive publishing programs and run their own periodicals. Mostly accessible by subscription or individual sale those publications aim at the widespread distribution of their respective ideology. Recently think tanks have also started to discover new media as useful tools for their purposes. A lot of the bigger institutions have set up websites, which provide general information as well as articles and research reports.
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Roman smoke telegraph network, 150 A.D.
The Roman smoke signals network consisted of towers within visible range of each other and had a total length of about 4500 kilometers. It was used for military signaling.
For a similar telegraph network in ancient Greece see  Aeneas Tacitus' optical communication system.
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