Crusades-era weapons contained nanotubes
Found this tidbit from NewScientistTech interesting:
During the middle ages, the Muslims who fought crusaders with swords of Damascus steel had an edge - a very high-tech one. Their sabres contained carbon nanotubes [...] and even nanowires.
- NewScientistTech: Secret’s out for Saracen sabres
- Wikipedia: Carbon nanotube
- Wikipedia: Damascus steel
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