Recreating The Lost Art Of Damascus Steel
YouAreFatMan writes "The Chicago Tribune has an article about two researchers -- a metallurgist and a blacksmith -- who have apparently been able to reproduce the legendary Damascus steel. 'Islamic artisans used it for centuries to make swords that spurred envy and myths among Europeans--including the legend that a Damascus blade could slice a falling silk scarf in midair.'"
The part of the text in which the story occurs does not reference s scarf, but a cushion and then a veil.
Here is the relevant section:
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More neat katana tricks: the aesthetically and functionally perfect curve of a katana doesn't form until the nearly-finished blade is quenched, and it forms naturally - it's not forged in. The differing hardness and thickness on either side of the blade causes it to cool and contract at different speeds, forming the curve. The steel on the back of the blade is also much softer than the steel of the edge, which is why you'll see people in movies deflecting and parrying with the back of the blade. This allows an enemy's weapon to bounce off the softer steel so the hard edge doesn't chip or shatter.
At least, I think so - that's what I heard from a friend who was a blacksmith for a while.