The Ancient Mechanical Marvel That Always Knew South: China’s Impossible 2,600-Year-Old GPS
Ancient Chinese engineers created a mechanical cart that always pointed south without using magnetism or compasses, relying instead on an intricate system of bronze gears that performed real-time directional calculations. This technological marvel, predating GPS by over 2,000 years, baffled modern engineers until they realized it was essentially an analog computer built from wood and metal.
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