Quilotoa@lemmy.ca to pics@lemmy.world · 2 days agoAll over the Sacred Valley are walls with stone joints so precise, you can't slip a piece of paper between them. This one is in the Inca town of Sacsayhuaman, Peru (yes, it is pronounced like that).lemmy.caexternal-linkmessage-square21fedilinkarrow-up1182arrow-down12
arrow-up1180arrow-down1external-linkAll over the Sacred Valley are walls with stone joints so precise, you can't slip a piece of paper between them. This one is in the Inca town of Sacsayhuaman, Peru (yes, it is pronounced like that).lemmy.caQuilotoa@lemmy.ca to pics@lemmy.world · 2 days agomessage-square21fedilink
minus-squareQuilotoa@lemmy.caOPlinkfedilinkarrow-up1·2 days agoOne theory is that the final step was that they mixed acid mine drainage with mud and applied that before setting the rock in place. This “dissolved” the minute bumps resulting in a perfect fit.
One theory is that the final step was that they mixed acid mine drainage with mud and applied that before setting the rock in place. This “dissolved” the minute bumps resulting in a perfect fit.