If I cut a thing in two, are the two pieces together exactly the same size as the original?

Or to rephrase it: does a knife/scissors/etc just split something or does it remove something?

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[–] 4 points 11 months ago* (1 child)

Came here to say this but you covered it pretty well! So I'll just leave this image of steel being "cut" under an electron microscope. You can see the deformation and change in structure.

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  • [–] 2 points 11 months ago

    That looks like my cheddar! That's why, without the aid of an industrial shearing rig, I have to hold the knife at about 15 degrees off vertical, cutting edge towards the block. The cut goes straight down. I've accepted the superiority of using a small santoku knife and having to hand wash. I really should get a wire slicer

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