[time-nuts] Grandfather clock sync'd to 1PPS

[vilgotch1 at gmail.com]

This has been a most interesting thread.

One method of controlling a pendulum but allowing it to swing naturally that
I am familiar with is to put a small unobtrusive magnet on the bottom of the
bob and an inductor on the base of the clock at the centre of the swing.
Depending on how you arrange the windings you can sense the period and
advance or retard the pendulum as required. It could be done very easily
with an Arduino or similar. It has the advantage that the pendulum can be
adjusted to keep as good time as possible and it will continue to do so if
the power fails.

And on the subject of remembering to wind the clock - the definitive
treatment of this subject is to be found in the opening chapter of "The Life
and Opinions of Tristram Shandy, Gentleman" first published by Laurence
Stern in 1759. I won't spoil the story by revealing the technique, but
suffice it to say that once read it's not easily forgotten!

Cheers,

Morris VK3DOC