[time-nuts] Antique precision timing device without electronics
William H. Fite
omniryx at gmail.com
Fri Mar 17 15:11:30 EDT 2017
My great, great uncle, longtime design engineer for Guglielmo Marconi had a
tuning fork arrangement of the type discussed here that was enclosed in an
evacuated glass cylinder. I have no idea for what purpose it was used or
what happened to it when he died.
On Friday, March 17, 2017, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> In message <160EF818076B4D03A0C067ED273D980B at system072>, "Bill Hawkins"
> >Conservation of power says some must be taken from the fork to operate
> >the contacts.
> Electromagnetic induction could give plenty energy for that, given the
> size and heft of the tuning fork.
> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG | 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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William H Fite, PhD
Statistical Analysis & Research Methods
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