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[–] 40 points 1 month ago (9 children)

This is also how they cut rocks in ancient egypt I believe? Not with water, mind you, but would use a pretty mediocre if not useless saw but would drop sand in there, so it was actually the sand cutting the rock

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  • [–] 31 points 1 month ago (3 children)

    This is also how they cut rocks in ancient egypt

    I'm tired of this human-centric revisionist history. It completely devalues the contributions of hard working aliens.

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  • [–] 18 points 1 month ago (2 children)

    Yep! The would use a saw that often had a blade made of string, like a bow, but would but gritty, sandy water in the hole they were cutting to slowly grind it away. I think they would also use “dull” copper saws (don’t quote me on that one though)

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