Wow! Amazing. There's another video from 1949 about 'How a Watch Works' — http:/... | Hacker News

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rahulmax on Oct 27, 2014 | parent | context | favorite | on: How a differential gear works (1937) [video]

Wow! Amazing.

There's another video from 1949 about 'How a Watch Works' — http://www.youtube.com/watch?v=508-rmdY4jQ

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