"The aeronautical and space acthilies of the United States shall be 

 conducted so as to contribute . . . to the expansion of human knowl- 

 edge of phenomena in the atmosphere and space. The Administration 

 shall provide for the widest practicable and appropriate dissemination 

 of information concerning its activities and the results thereof." 



—National Aeronautics and Space Act of 1958 



NASA SCIENTIFIC AND TECHNICAL PUBLICATIONS 



TECHNICAL REPORTS: Scientific and technical information considered 

 important, complete, and a lasting contribution to existing knowledge. 



TECHNICAL NOTES: Information less broad in scope but nevertheless of 

 importance as a contribution to existing knowledge. 



TECHNICAL MEMORANDUMS: Information receiving limited distribu- 

 tion because of preliminary data, security classification, or other reasons. 



CONTRACTOR REPORTS: Scientific and technical information generated 

 under a NASA contract or grant and considered an important contribution to 

 existing knowledge. 



TECHNICAL TRANSLATIONS: Information published in a foreign 

 language considered to merit NASA distribution in English. 



SPECIAL PUBLICATIONS: Information derived from or of value to NASA 

 activities. Publications include conference proceedings, monographs, data 

 compilations, handbooks, sourcebooks, and special bibliographies. 



TECHNOLOGY UTILIZATION PUBLICATIONS: Information on tech- 

 nology used by NASA that may be of particular interest in commercial and other 

 non-aerospace applications. Publications include Tech Briefs, Technology 

 Utilization Reports and Notes, and Technology Surveys. 



Details on the availability of these puhlications may be obtained from: 



SCIENTIFIC AND TECHNICAL INFORMATION DIVISION 

 NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 



Washinston, D.C. 20546 



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