The Strength Between Stones: The Hidden Engineering of Dry Masonry Walls
How can a wall made of individual stones stand firm for generations—without a single drop of mortar?
In this episode of The Gentle Inquiry, we uncover the hidden engineering behind dry masonry retaining walls, where gravity, friction, and the careful arrangement of stones work together to hold back the earth. We explore what happens when these forces fall out of balance, causing walls to slide, tilt, or collapse, and how engineers combine physical experiments, mathematical calculations, and computer models to understand these risks.
From traditional stone-building craftsmanship to modern…
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