Here's an interesting one... Did I get the math
right?
Those of us here in the USA are faced again
with a proposed change in DST rules. Is this
local to the US or is there a similar daylight
saving time inflation trend in other countries?
Previously we had about 7 months of saving
time; the new
I have always hated DST. I would rather they do away with it entirely. Maybe
I should move to Arizona?
- Original Message -
From: Tom Van Baak [EMAIL PROTECTED]
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, July 27, 2005 2:36
Subject:
Joseph Gray wrote:
I'd appreciate it if you stuck your request here.
http://www.drkirkby.co.uk/community/test-equipment/
I like the idea.
Thanks - it is nice to know I have not totally wasted my time, although getting to grips with bits of
perl warrants the time spent. There is nothing
Poul-Henning Kamp wrote:
In message [EMAIL PROTECTED], Chuck Harris writes:
Poul-Henning Kamp wrote:
In message [EMAIL PROTECTED], Rob Seaman writes:
Now, for 3 t-shirts Poul, reread Rob's last paragraph, but this
time with your blinders removed.
I'm still trying to get the same
Dear Tom Van Baak,
Sorry to bother you in this way but I cannot get registered on time-nuts
mailing list.
Thanks for the mail. Very pleased to meet you.
I'll cc time-nuts and John can add you to our
list manually.
My name is Lymex Zhang (or Zhang Limin, if direct translate from Chinese),
I
Tom Van Baak wrote:
Dear Tom Van Baak,
Sorry to bother you in this way but I cannot get registered on time-nuts
mailing list.
Thanks for the mail. Very pleased to meet you.
I'll cc time-nuts and John can add you to our
list manually.
Hi Lymex --
Welcome to time-nuts!
I've added you to
2005 is the 100th anniversary of Einstein's first set
of famous papers, including the one on relativity.
This has received a fair amount of press this year.
Less well known is that 2005 is also considered
the 50th anniversary of the atomic clock. Here is
a collection of papers and links if you're
In message [EMAIL PROTECTED], Mike S writes
:
At 01:38 PM 7/27/2005, Bill Janssen wrote...
If anyone has access to specifications for SONET or SDH the jitter spec. may
be
related to the above 9.8e-13. I worked on those spec.'s a long time ago
and don't remember the details but we were concerned
Hi Poul,
Poul-Henning Kamp wrote:
hand. Seconds are just a frill to civil timekeeping.
Wlll, almost.
You see, the technocratic part of the population is very busy
spinning a technological net around the rest of the population, a
net where seconds can cost you fortunes one example
Certainly. But what's your point? I don't see these utilities failing
if a second slips here or there. The one case where time is critical
is the power grid, and they keep their own time (Which, IIRC
approximates UTC).
The long term average of the power grid in the US is 60.000 Hz. Short
The truly critical time functions will continue to use TAI,
or some variant as they currently do
TAI time isn't a silver bullet. It is a timescale that one can
recover, with some effort, but only if one can get the leapsecond
meta-data from somewhere else, since time is overwhelming
Hi Tom:
Does your phase plot mean that a mains powered wall clock might be off
by 10 seconds?
Have Fun,
Brooke Clarke, N6GCE
--
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com
Tom Van Baak wrote:
. . .
For real plots
I have a digital clock that runs from the 60 hertz power. I have
noticed several times that TVA power can gain time up to 15 seconds
compared to UTC. Takes a few weeks.
I also did a stability test using a rubidium and dividers and I showed
about a +/- 0.03 hertz deviation over one hour,
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