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Major U.S. Think Tanks: Heritage Foundation |
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Heritage was started to counter what it perceived as the liberal intellectual climate of Washington in the 1970s. The Heritage Foundations mission is to formulate and promote conservative public policies based on the principles of free enterprise, limited government, individual freedom, traditional American values, and a strong national defense. Heritage pursues this mission by performing research addressing key policy issues and effectively marketing these findings to its primary audiences: members of Congress, key congressional staff, policymakers in the executive branch, the nation's news media, and the academic and policy communities.
Official Organizational Status: Independent research and educational institute.
Political Orientation: U.S. Conservative
Scope/Research Areas: The Heritage Foundation's research areas include: economic issues, health and welfare, education, culture and religion, security and defense, foreign policy and international relations/institutions. Priority is given to issues, such as: Social Security reform, fundamental tax reform, livable cities, ballistic missile defense, education reform, domestic and economic policy and foreign and defense policy. Recent publications include: Feulner, Edwin J.: The March of Freedom. (1998). Holmes, K. et.al.: 1999 Index of Economic Freedom. (1998).
Funding Sources: 1998 Budget: US$ 26 million. Private donations (47 %), foundations (21 %), investment income (21 %), corporate donations (4 %). Among others US$ 1 million from the Korea Foundation - funded by South Korea's foreign ministry.
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Chappe's fixed optical network
Claude Chappe built a fixed optical network between Paris and Lille. Covering a distance of about 240kms, it consisted of fifteen towers with semaphores.
Because this communication system was destined to practical military use, the transmitted messages were encoded. The messages were kept such secretly, even those who transmit them from tower to tower did not capture their meaning, they just transmitted codes they did not understand. Depending on weather conditions, messages could be sent at a speed of 2880 kms/hr at best.
Forerunners of Chappe's optical network are the  Roman smoke signals network and Aeneas Tacitus' optical communication system.
For more information on early communication networks see Gerard J. Holzmann and Bjoern Pehrson, The Early History of Data Networks.
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