Download video: Strutt Epicyclic Train Clock - William Strutt
Channel: Ken Kuo
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William Strutt designed his epicyclical geared clock in the late 1820's and his friend William Wigston built it. Because of the difficulties involved in making epicyclical gears very few were made by Strutt and Wigston. http://www.my-time-machines.net/dent-strutt.htm