THE SECRET LIFE OF MACHINES - The Quartz Watch
by Tim Hunkin
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All clocks and watches work by 'counting' some event which takes a fixed period of time, like the swings of a pendulum. The higher it goes the stronger the pull of gravity and the faster it comes back - so the swings always take a fixed time. The Quartz crystal in a watch vibrates at a fixed speed in a similar way.


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The Quartz Watch cartoon

 

Cartoons copyright (C) 1988-1994 Tim Hunkin. All rights reserved.
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