The development of complex mechanical clocks and escapement
3:01
Added: 4 years ago
From: ayabaya
Views: 7,484
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  • good speaker

    weav8060 1 year ago

  • Very interesting.

    deptfordboysSE8 1 year ago

  • Great commentary especially at the end.

    karythey 3 years ago

  • Excellent bit of history

    adrianiredale 3 years ago 4

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