Poul-Henning Kamp said:
> So here is an instructive little table:
>
> Finagle Subject to
> FactorUnit/Resolution politics since
>
> Leap days 86400 sec. 2000
On Tue, 2 Nov 2010, Poul-Henning Kamp wrote:
>Tony Finch wrote:
>>On Tue, 2 Nov 2010, Poul-Henning Kamp wrote:
>>>
>>> I may be misremembering, I thought the longitude conference was in 1884 ?
>>
>> Yes, but by that time there had already been 40 years of railway time in
>> the UK. We officially sw
On 11/02/2010 12:44, Tony Finch wrote:
Leap days are also an instructive example, since it took about 300 years
for Europe to deploy a revision to the previous standard which had been in
place for about 1600 years...
One not completely adopted either: to compute many religious holidays,
many ea
In message <211ee304-6f59-40a1-837f-3f8359f68...@noao.edu>, Rob Seaman writes:
>Poul-Henning Kamp wrote:
>Except that your suggestion is that we can ignore the whole thing
>because the wisdom of local governance will sort it all out with
>kaleidoscopically shifting timezone policies.
Which was ex
Poul-Henning Kamp wrote:
> I'm not sure I see that any one country fixes their national time as
> relevant, as the fact that the international community, such as it were,
> argreed to do so.
Except that your suggestion is that we can ignore the whole thing because the
wisdom of local governanc
In message , Tony Fi
nch writes:
>On Tue, 2 Nov 2010, Poul-Henning Kamp wrote:
>>
>> I may be misremembering, I thought the longitude conference was in 1884 ?
>
>Yes, but by that time there had already been 40 years of railway time in
>the UK. We officially switched to a single time zone in 1880, b
On Tue, 2 Nov 2010, Poul-Henning Kamp wrote:
>
> I may be misremembering, I thought the longitude conference was in 1884 ?
Yes, but by that time there had already been 40 years of railway time in
the UK. We officially switched to a single time zone in 1880, but local
mean solar time had already be
In message , Tony Fi
nch writes:
>On Tue, 2 Nov 2010, Poul-Henning Kamp wrote:
>>
>> Finagle Subject to
>> Factor Unit/Resolution politics since
>>
>> Leap days86400 sec.
On Tue, 2 Nov 2010, Poul-Henning Kamp wrote:
>
> Finagle Subject to
> FactorUnit/Resolution politics since
>
> Leap days 86400 sec. 2000 bc.
> Timezones 36
In message <3b33e89c51d2de44be2f0c757c656c88099aa...@mail02.stk.com>, "Finklema
n, Dave" writes:
>It is a hierarchy each level of which is sufficient for a range of
>applications. Every time we solve dynamical equations, we are defining
>a unique time scale and time interval based on things such
On Tue 2010-11-02T13:30:42 -0400, Finkleman, Dave hath writ:
> We must correlate time as perceived in our analyses
> with the temporal relationships among objects in the universe.
For the sake of operational systems I would phrase this as the
requirement that all precision intercomparisons of time
A long flight was time to really read Ken Seidelmann's book and part of
Woolard and Clemence, Spherical Astronomy. Subsequent exchanges with
Ken give me a new understanding. (Probably an old understanding for the
rest of you.)
When we solve equations approximating physical processes, we are real
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