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... ronomical clock or radio oscillator.
However, the early Rotating Instrument Clocks drew their power from chain-driven weights or springs, with their rotational speeds controlled by centrifugal governors.
The Water Transporting Celestial Observation Platform, representing the pinnacle of Old Su's life, utilized this latter principle.
Previously, when designing the layout of the telescope, Xu Yun made some modifications to the Rotating Instrument Clock based on the Water Tr ...
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