The Secret Life of the Quartz Watch
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.
SERIES 1:
vacuum
cleaner 
sewing
machine central
heating system washing
machine refrigerator
television
SERIES 2: car
internal
combustion engine
quartz watch
telephone
radio set
video
recorder
SERIES 3: fax
machine
lift
word
processor
electric
light
photocopier
the
office
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(C) 1988-1994 Tim Hunkin. All rights reserved. |