In 1902, a corroded lump of bronze from an ancient shipwreck cracked open — and revealed a tiny gear. What emerged was the Antikythera Mechanism, a hand-built machine more than two thousand years old capable of modeling the movements of the Sun and Moon, predicting eclipses, tracking calendars, and almost certainly displaying the known planets. Modern X-ray scans have revealed a level of mechanical and astronomical sophistication that appears almost nowhere else in the surviving ancient world. We understand much of what the machine did. We still don't know exactly who built it, where it came from, or how many others once existed. ─────────────────────────────── IN THIS EPISODE— A mysterious geared machine recovered from an ancient Greek shipwreck— X-ray scans revealing dozens of hidden bronze gears and astronomical cycles— How the mechanism modeled the Moon, eclipses, calendars, and possibly all five known planets— Why almost nothing comparable survives from the ancient world SOURCESNature / Antikythera Mechanism Research Project, 2006Nature / Antikythera Mechanism Research Project, 2008Scientific Reports / University College London, 2021University of Glasgow, 2024National University of Mar del Plata, 2025 ─────────────────────────────── Narration in this episode is AI-assisted. Research, writing, and editorial decisions are human. Reality Is Strange — real phenomena, verified, and stranger than they should be.

The 2,000-Year-Old Computer Found in a Shipwreck

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