SKY YOU COULD TURN: The Antikythera Mechanism, the Ancient Heavens, and the Limits of Reconstruction

2,000 years ago, someone built what is often called an ancient computer. What were ancient engineers truly capable of? The Antikythera Mechanism was recovered from the sea in broken, corroded fragments-pieces of a machine that challenged what many people thought ancient technology could do. More than a century later, researchers are still trying to understand the complete device. A Sky You Could Turn: The Antikythera Mechanism, the Ancient Heavens, and the Limits of Reconstruction follows that mystery from the wreckage into the modern investigation. Surviving gears, hidden inscriptions, modern imaging, and competing reconstructions are bringing parts of the machine back into view. But every answer opens another question-not only about how the mechanism worked, but about the people capable of imagining and building it. Who designed it? Where did that knowledge come from? Was this machine unique, or was it one surviving example of something the ancient world once understood far better than we do today? Nearly two thousand years beneath the sea left us only fragments. The mystery is how much of the world that created them disappeared too.