nanog mailing list archives
Re: F-ckin Leap Seconds, how do they work?
From: "Majdi S. Abbas" <msa () latt net>
Date: Tue, 3 Jul 2012 18:45:27 -0400
On Tue, Jul 03, 2012 at 11:33:22PM +0100, Tony Finch wrote:
Keith Medcalf <kmedcalf () dessus com> wrote:You are assuming facts not in evidence. The rotation is merely irregular within the capabilities of our scheme of measurement, calculation, and observation.There is LOTS of evidence that the earth's rotation is irregular. VLBI, laser ranging of the moon, etc. This was known long before the atomic clock was invented, and it is why the definition of the second was changed from one based on earth rotation to one based on Newcomb's ephemerides, before the change to an atomic second.
This. Shoot, seismic activity has a measurable effect. The best we can do is approximate it and align the timescales as needed. There's no lack of understanding here, just a changing planet. Now, changing your kernel's leap second handler and not testing it, well, you can't blame that one on the ITU or the aforementioned planet. --msa
Current thread:
- Re: F-ckin Leap Seconds, how do they work?, (continued)
- Re: F-ckin Leap Seconds, how do they work? Owen DeLong (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Chris Adams (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Jay Ashworth (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Majdi S. Abbas (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Paul Graydon (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Steve Allen (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Saku Ytti (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Tony Finch (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Keith Medcalf (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Tony Finch (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Majdi S. Abbas (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Keith Medcalf (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Tony Finch (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Peter Lothberg (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Marshall Eubanks (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? George Herbert (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Randy Fischer (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Tony Finch (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Joel jaeggli (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? valdis . kletnieks (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Joel jaeggli (Jul 03)