Broken glass or a fresh shaving blade - what's sharper?

jack_9632

New member
I sliced my cheek whilst shaving earlier with a cheap shaving razor blade (I'm rather slow in the mornings D:). Later on in the same day, I accidentally broke a drinking glass and cut myself picking one of the pieces up. I bled more with the piece of glass, but that's a lot thicker than what I used on my cheek. Why is this? The edge of the razor looks much sharper to me.
 
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