Quote:
Originally Posted by Delta Tango
There are reasons to believe they had saws but not circular. What they did find some evidence to was basically just straight piece of copper (which, by chance, was naturally alloyed) which they ran over stones. They used sand for saw teeth.
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There's an old water-powered stone-cutting mill near where I live in the NW of England, and that's basically exactly the way that it, too, worked. The motive power was water rather than muscle, but some technologies just work so well that there's really no reason to change them.