How does a knife work?

Subject: How does a knife work?

Date: Wed May 10 14:02:01 2000
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Area of science: Physics
ID: 957981721.Ph

Message:


It's like gravity, we take it for granted. But really, how does it do its 
business?  Does it have to do with the concentration of relatively minor 
forces on a very thin edge resulting in very large forces per unit area 
that exceed the strength of the material being cut or whaaaa?  I've seen 
references to levers and wedges, but I dunno.  This one is kind of bending 
my head.

Re: How does a knife work?

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