In message <[email protected]>, Bob Camp writes:
>Hi
>
>Maybe a system using a rotary electrical machine synchronous to the power line 
>driving a system of gears. and pointers on a dial 

That is what was known as a "synchronous clock".  Tom has one running
off his atoms on his web-page...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
[email protected]         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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