For many centuries, a falling weight has been used as an energy source to drive mechanical clocks. It is a versatile and constant force that has been used to power clocks, from the great cathedral c……続きを見る
著者:F. J. Camm
出版社: Read Books Ltd.
発売日: 2016年12月19日
This antiquarian book comprises a comprehensive and practical handbook on modern watches, with information on the history and development of watches, on cleaning them, repairing them, and much more.……続きを見る
In 1733 Mr Henry Bridges announced his Microcosm or Little World was on display in Waltham Abbey then toured Britain and the American colonies. It was a giant four tiered machine which demonstrated ……続きを見る