Carbon nanotubes used by 17th century Damascus

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Esoteric

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http://www.rsc.org/chemistryworld/News/2006/November/15110602.asp

Carbon nanotubes are no longer the proud boast of 21st century materials scientists. It appears their discovery was unwittingly pre-empted by mediaeval Muslim sword-smiths whose tough Damascus blades taught the Crusaders the true meaning of cold steel when they fought over the Holy Land.

Peter Paufler and colleagues at Dresden's Technical University discovered carbon nanotubes in the microstructure of a 17th century Damascus sabre. Intriguingly, the nanotubes could have encapsulated iron-carbide nanowires that might give clues to the mechanical strength and sharpness of these swords.
 

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Thanks for sharing.
 

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