Listen to more stories on the Noa app. A dry stone wall is a purposeful pile of rocks, held in place by friction and gravity rather than mortar. It’s one of the oldest building methods known to ...

Artisans around the world are ditching the mortar and embracing an old method of building rock walls Clachtoll Broch, a Scottish dwelling with dry stone walls, was built at least 2,000 years ago. Its ...

The robotics experts at ETH Zurich have developed an autonomous excavator that uses advanced AI to help it complete high-skill tasks without a human operator. Dry stone wall construction typically ...