Ancient Metal Clamps: The Lost High-Tech Secret of Ancient Civilizations
Across the world, from the ruins of Egypt to the sacred sites of Peru and Cambodia, archaeologists have uncovered an astonishing and perplexing detail in ancient megalithic architecture: metal clamps used to hold giant stone blocks together. These clamps, found in T-shaped grooves carved into monumental stonework, represent one of the greatest unresolved mysteries of…
