• janewaydidnothingwrong@lemmy.world
    0·
    3 months ago

    Erosion is largely done by sediment being transported by the water I believe. The same principle is used in cutting water jets, it isnt the water pressure that cuts things, the water is a medium for abrasive materials

    • Leonixster@lemmy.blahaj.zone
      0·
      3 months 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

      • surewhynotlem@lemmy.world
        0·
        3 months ago

        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.