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10-19-2005, 01:38 AM #20Originally Posted by AFDavis11
An edge can't look like black ice unless it's covered with something. The picture you showed had bad lighting. An edge cuts because of the fin ("microserrations"), which is formed where the scratch lines reach the end of the blade. In other words, without scratch lines, there's no fin. Here's a 200x microscope picture of a razor honed with a 12K stone. Notice the scratch lines?
A leather strop can't produce scratch lines if it has no paste on it. It can remove material which is covering the scratch lines. It can't dull an edge unless the strop is not taught and rounds the edge or unless something from the strop gets into the fin and gunks it up.
One thing is for sure: the strop did not produce scratch lines in an edge that didn't have them before.
DE blades have scratch lines, but they are perpendicular to the edge. They're very prominent at 60x. Try moving the light around