http://gizmodo.com/5626765/this-rock+slicing-nanotechnology+packing-super-steel-was-forgotten-250-years-ago
It appears that we (human race) used to make blades that were so sharp they would cut other blades and so well made that they never needed to be sharpened. We have since forgotten how to make these fabled Damascus steel items. Maybe its a cover up from knife stores everywhere?
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