The end of the Middle Ages saw town clocks being introduced
all over Europe . The concept of arriving for and leaving
work at certain times was just one example of the effect clocks had,
particularly in towns and cities, where increasingly efficiency was the
underlying motive for introducing clocks.
By the middle of the 15th century the steel
spring had been introduced for powering clock mechanisms, instead of the weight
drive. Smaller clocks could now be made, but springs lose their energy
gradually as they unwind, so a device called a fusee had to be incorporated. It
was tapered or conical drive wheel that compensated for the loss of energy. In
1581, Galileo Galilei noticed the phenomenon of the pendulum. A hundred years
later the pendulum would set a new bench-mark in time-keeping accuracy.
No comments:
Post a Comment