On Sun, 1 Dec 2013 13:57:56 -0500
"Dale J. Robertson" <[email protected]> wrote:
> A unidirectional error of 1/100th of a second would accumulate around a
> minute and a half per day. It's been a long time since I laid eyes on a
> mechanical pendulum clock. I remember the clock in my childhood home kept
> better time than that. ( I became odd very early. I compulsively compared
> the clock time to WWV time at least once a day. I had been using the time
> service from the phone company. I felt defrauded when I discovered (via WWV)
> that the time from the local telco's dialup time service was just a rough
> (very rough) approximation of the time.
IIRC 10^-6 was "easily" acheivable with mechanical clocks, with the
best going to 10^-8 or so (timescale IIRC 1 day).
Attila Kinali
--
1.) Write everything down.
2.) Reduce to the essential.
3.) Stop and question.
-- The Habits of Highly Boring People, Chris Sauve
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