[time-nuts] Electric Pendulum Clocks
brooke at pacific.net
Mon Apr 25 17:16:47 EDT 2005
The following web page is highley recomended if you're into precision
pendulum clocks. It's titled Electric CLocks to differentiate from
spring wound clocks. By all means get the latest Macromedia Shockwave
player and spend some time viewing the animations with the sound turned
on. In most cases the pendulum must swing for a number of seconds
before the electric circuit is actuated and gives it a "kick".
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
David Kirkby wrote:
. . .
> Working out what my goal is not an easy task.
> It started with the desire to stabilise an 18th century pendulum clock
> with a crystal!! I realised I needed a decent crystal, and some way to
> measure its frequency, and it sort of escalated from there.
> The route I take might depend on the outcome of this eBay transaction
> of mine for the 18011A.
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