Interesting description at the end of the result of a terrorist attack on the 
ribbon:

http://www.spectrum.ieee.org/WEBONLY/publicfeature/aug05/0805spac.html

ABOUT THE AUTHOR 
Bradley Carl Edwards spent 11 years on the staff of the Los Alamos National 
Laboratory, leading advanced technology efforts for lunar missions and a Europa 
orbiter mission. Since leaving Los Alamos, Edwards has led development of the 
space elevator, organizing conferences and conducting research. He is the 
founder and president of Carbon Designs Inc., in Dallas, which is developing 
high-strength materials for a range of applications, from aerospace structures 
to sports and recreational products. 

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