South Pointing Chariot

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The South-pointing chariot, an ancient Chinese invention, was a two-wheeled vehicle featuring a movable pointer. This pointer took the form of a doll or figure with an outstretched arm that always pointed south, regardless of the carriage's direction. Often used as a compass for navigation, it may have also served other purposes. A modern version operates gears at specific time intervals, changing wheel rotation speeds to replicate its functionality.