In message <[EMAIL PROTECTED]>, David Forbes writes:
>A modest proposal:
>
>Instead of adding randomly-placed leap seconds to UTC or allowing UTC
>to drift from UT1 etc, the timing community should just change the
>second's definition from time to time as needed. That is, dither the
>Cs transiti
In message: <[EMAIL PROTECTED]>
David Forbes <[EMAIL PROTECTED]> writes:
: Is this an old idea?
This is an old idea. something similar to this was done from about
1960 to 1972 and was deemed to be too cumbersome. See
http://www.cl.cam.ac.uk/~mgk25/time/metrologia-leapsecond.pdf for
A modest proposal:
Instead of adding randomly-placed leap seconds to UTC or allowing UTC
to drift from UT1 etc, the timing community should just change the
second's definition from time to time as needed. That is, dither the
Cs transition frequency between 9,192,631,770 Hz or ,780 Hz annually
Less than 171 days until total destruction! :-) Chicken Little was right.
- Original Message -
From: "Tom Van Baak" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Wednesday, July 13, 2005 8:14
Subject: Re: [time-nuts] FW: Bulletin C number 30
So, after a 7 year delay my
nixie tube Leap Second countdown clock
is back in action. Check out:
http://www.leapsecond.com/java/nixie.htm
If the page doesn't display properly with your
web browser please let me know so I can fix it.
/tvb
- Original Message - >
> INTERNATIONAL EART
In message <[EMAIL PROTECTED]>, "Jack Hudler" writes:
>Personally I think we should recall the US delegation, line them up and have
>them shot. :)
"One has to also wonder how such a narrow working group
(or even the larger ITU) believes itself empowered to make a
unilateral change that would aff
Personally I think we should recall the US delegation, line them up and have
them shot. :)
Loved Meeus's response!
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The HP Appnote 200 (actually several) goes through counter basics. If you
cant
get them from Agilent let me know and I could share the onces I have.
There are a few writeups here and there, but no one reaches totallity in
the
field.
Cheers,
Magnus
Thanks for the offer, but I just downloade
From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] I'm the new guy
Date: Wed, 13 Jul 2005 08:18:57 +0200
Message-ID: <[EMAIL PROTECTED]>
> In message <[EMAIL PROTECTED]>, "Joseph Gray" writes:
>
> >I am currently trying a few simple
> >experiments to get a better understandi
O time-nuts,
I realize that this subject was beaten to death here last week, but
here's a new twist.
This is a little missive from an astronomer on the delicate subject of
the divergence of UTC from UTx. It seems that those bastards in the
precision timing community want to abandon UTC's lea
The full set of classic AN 200 documents were/are
on the HP/Agilent website. See also below:
AN 200 Fundamentals of the Electronic Counters
http://www.leapsecond.com/pdf/an200.pdf
AN 200-1 Fundamentals of Microwave Frequency Counters
http://www.leapsecond.com/pdf/an200-1.pdf
AN 200-2 Fundamental
HP used to have a good application note about time interval measurements.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
Yes, I have that one "Fundamentals of Time Interval Measurements". Very
informative.
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