Scratch pattern when sharpening

[neeman]

I work in the semi-conductor industry where the plus and minus of measurement is 20 nano-meter, so I am used to seeing hi-mag images

But please help my understand these images to discern the differences of edge sharpness
At 500 mag any knife edge will look like a mountain arete

 

[ToddS]

I work in the semi-conductor industry where the plus and minus of measurement is 20 nano-meter, so I am used to seeing hi-mag images

But please help my understand these images to discern the differences of edge sharpness
At 500 mag any knife edge will look like a mountain arete

I don't agree, but I do like the word "Arete"

 

[neeman]

Todd
nice

This is a Swiss Army knife edge?

 

[ToddS]

Todd
nice

This is a Swiss Army knife edge?

I'd have to check my notes - Alp be right back.

 

[neeman]

Any takers to explain the high resolution images of the knife edges?
Please....

 

[HeavyHanded]

Any takers to explain the high resolution images of the knife edges?
Please....

Am not sure what needs to be explained, but am game if you can narrow it down a bit. An interesting side note would be to include pics of common materials at the same magnification so the possible interactions between materials and different edges might be more apparent.