• Leonixster@lemmy.blahaj.zone
    link
    fedilink
    arrow-up
    15
    ·
    3 hours ago

    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

    • Girl Named ZERO@piefed.zeromedia.vip
      link
      fedilink
      English
      arrow-up
      8
      ·
      2 hours ago

      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)

      • jaybone@lemmy.zip
        link
        fedilink
        English
        arrow-up
        2
        ·
        15 minutes ago

        Wouldn’t the string break from the abrasive sand long before it made an impact on the stone they were trying to cut?