Assertion: rapier's blade | /r/HasProperty | characterized by intricate patterns
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text: This distinctive looking blade is characterized by intricate patterns reminiscent of oil slicks and flowing water, and while fanciful tales of Damascus swords being able to slice through the barrel of a rifle or cut a hair falling across its blade have obviously gone unproven, studies like the one published in this 2006 issue of Nature — wherein a team of German researchers used electron microscopy to show that ancient Damascus steel has a microstructure containing carbon nanotubes — continue to cast Damascus swords in an almost mythical light.