whether, in the light of modern measurements, Newcomb
would opine that his expression was supposed to be solar time. The
slop of a full second in UTC made the original meaning of UT1 moot,
and the geophysicists took the advantage.
--
Steve Allen [EMAIL PROTECTED]WGS-84
was mostly due to ocean currents.
There are still ruminations that melting the arctic would trigger a
shutdown of the north Atlantic currents that convey heat north and
thus precipitate an ice age.
I'd love to see this prediction, too, but I would not expect to put
too much confidence in it.
--
Steve
years in advance. I'm not ready to go for ten.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064
to peak.)
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http://www.ucolick.org/~sla
level do distributed systems need
access to a time scale which is uniform in their reference frame?
And my question: Can something as naive as POSIX time_t really serve
all such applications, even the ones on earth, for the next 600 years?
--
Steve Allen [EMAIL PROTECTED
as necessary to stay within
tolerance.
There are now other applications.
For some of those POSIX cannot do the job -- with or without leap seconds.
Yes, there is a cost of doing time right, and leap seconds are not to
blame for that cost. They are a wake up call from the state of denial.
--
Steve Allen
guaranteed to be set to within a
second of real time, and for that purpose the POSIX time_t API is
just dandy. Other applications with access to other time sources
will want to use algorithms of more sophistication according to
their individual needs.
--
Steve Allen [EMAIL PROTECTED
, there was no concept that UTC is only
defined at the surface of the earth and that the only suitable time
scales are TCB and TDB. (TDB would be the natural result because
ticks along with UTC and because that's what the JPL ephemerides use.)
The need for pedagogy never ends.
--
Steve Allen
to have adverse effects. In the
matter of earth rotation it seems unlikely that there could be any
penalties, and if there were a general consensus that this be the
right thing to do then the IERS could probably act with impunity in
advance of official approval from all agencies.
--
Steve Allen
been producing versions of this
plot since around 1999, but the published record of them is largely
in PowerPoint. Dr. Tufte has provided postmortems of both Challenger
and Columbia as testaments to how little that medium conveys.
--
Steve Allen [EMAIL PROTECTED
an interface better than POSIX time_t which allows
those applications which need precise time to do a good job at it.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1
which
happen even if Dave Mills is conditioning their clocks?
It's my expectation that if all systems are allowed to deny the
reality of precision time keeping we will eventually find ourselves
living in a timekeeping world that resembles C.M. Kornbluth's story
The Marching Morons.
--
Steve Allen
uniform measure than
any practically available time scale, including TAI. As such it is a
simplification for the sake of human cognition that comes close to the
notion of year without any intent to match observable or political
reality.
--
Steve Allen [EMAIL PROTECTED]WGS
of the CGPM and its international
structure.
But really, when it comes down to it, people are probably in general
agreement that it shouldn't be necessary to rely on either scientists
or international diplomacy to tell them when the sun is up.
--
Steve Allen [EMAIL PROTECTED
agree to use some sort protection in order to provide a less
scandalous schedule of planned parenthood.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831
was mainly for consistency
with existing navigation practices, and also for ease of
broadcasting that difference. I don't think that either of
these constraints is relevant anymore.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural
counties. I hope someone
is writing a book about that.
This next year will be fun across the US as devices which have no idea
what congress did to the daylight time dates start giving incorrect
readings from their clocks.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS
how long it takes, the point is to enjoy the journey.
In this discussion list we never hear from the last group.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice
122 years ago on
http://www.gutenberg.org/files/17759/17759-h/17759-h.htm#Page_152
and the following four pages I suppose that this is separate from
the problem the LEAPSECS list was created to ponder.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick
, possibly by pissing into it. In this case the cook who is
recognized as the holder of UTC does have his feet nailed down by the
ITU rules which say their documents must be sold, not given away. All
the other agencies contributing to this broth are allowed to work
openly and publish freely.
--
Steve
and Contributing Editor, GPS World Magazine
viz
http://gauss.gge.unb.ca/papers.pdf/gpsworld.january01.pdf
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice
for most
of a lifetime.
To end with some fun, here's a Flash clock application
http://home.tiscali.nl/annejan/swf/timeline.swf
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University
Documents to their software teams.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http
://en.wikiquote.org/wiki/Henry_VI%2C_part_2
Alternatively just to mope like Cassius to Brutus?
Julius Caesar, Act 1, scene 2
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1
On Tue 2006-09-12T23:18:05 -0700, Steve Allen hath writ:
It appears that the version as reported in the senate in July
struck out all of section 508. I could be wrong.
I receive word that the UTC text still appears to be in Title V, and
at the moment the link in the document seems to be named
this video will probably already understand the difference.
Having seen the way Daniel Gambis ended his presentation by donning
his hat, I can only wish that I had ended mine by donning some very
dark sunglasses.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick
Earlier this year Felicity Hickson produced a work of art comprised of
23 seconds of statements by 23 people on the 23 leap seconds since 1972.
http://youtube.com/watch?v=GtYvSjS1jUI
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural
again -- why is it thta broadcast civil time signals
need atomic accuracy?
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng
standard from GMT to UTC.
Language like this was introduced in 2002, but the bill was killed.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046
Artist Felicity Hickson created a documentary of 23 people speaking
for 23 seconds each. Its show debuts today in London, um, Kensington.
http://www.communication2006.com/content/au/35.php
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick Observatory
/J_BusRepGA05.doc
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http://www.ucolick.org/~sla/ Hgt
the self-inconsistent
values for their conventional longitudes (c.f. Janssen and Newcomb
at the 1884 IMC) the signals did not start to agree until coordinated
cesium clocks were in use.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural
by the USNO reaches to the level of dereliction of duty,
but I don't think that failure to follow prescribed procedures on the
part of the USNO justifies the abandonment of leap seconds.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural
applications for DUT1 signals, most likely they are for sextant-style
navigation. If the leap seconds are being predicted five years in
advance then the annually published navigation almnacs can incorporate
projections which are as good as the broadcast signals.
--
Steve Allen [EMAIL
On Fri 2006-04-14T19:39:31 +0200, Poul-Henning Kamp hath writ:
In message [EMAIL PROTECTED], Steve Allen writes:
It's a good question. My immediate response is that my notions are
also part of the
Full Time-Scale-Aware Lawyer Employment act of {YA}
I don't want us to adopt anything
has just finished
checking its transcription of the document into fully machine readable
and searchable form.
http://www.gutenberg.org/etext/17759
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat
, then this request shall be ignored.
Minor point, I think it has to read more like this
between 23:59:60 of a UTC day that ends with a positive leap
second and 00:00:00 of the subsequent UTC day.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick
with links to most of the
papers and dates of changes.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA
On Mon 2006-01-23T14:02:01 +, Clive D.W. Feather hath writ:
Steve Allen said:
The official time of the US for commerce and legal purposes is UTC(NIST).
The official time of the US DOD is UTC(USNO).
The official time of the UK is GMT.
Please distinguish between official and legal
with that condition.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http
by such
VLBI antennae will not, however, keep synchronized with earth using
anything less than a fully general relativistic expression for the
intercomparisons.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat
of the limits at which it becomes much more difficult to agree on time.)
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
not.
This was fixed with a new release which happened by Friday.
(Despite some NTP servers which reportedly still have not acknowledged
the leap second, I think the overall indications are that the NTP
network did better than 50 %.)
The existing IERS system is dysfunctional.
--
Steve Allen
) which
differs from TAI by an integral number of seconds. As an identifiable
entity, UTC (unmodified) may only exist within the text of ITU-R
TF.460
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat
/~mgk25/time/leap/utc-torino-slides.pdf
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http
_process_ does actually work.
Agreed, you just have to be prepared to play the Byzantine games.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046
in which the original agreements are to be interpreted.
It remains to be seen whether the gentleman's agreements which hold
this whole scheme together will tolerate a non-consensual arrangement.
Now tell me why you think Leap seconds are so important again.
In a word, I offer psychology.
--
Steve
over decade timescales.
I remain in dismay that said point is moot for embedded devices, for
the local civil authorities are more whimsical than the earth with
larger amplitude deviations at less predictable intervals.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO
Here is one indication of NTP response to the presence of low stratum
servers which did not behave well.
http://members.iinet.net.au/~nathanael/ntpd/leap-second.html
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room
, including the change in the DUT1
clicks, but I can check later.
At some point I will be able to put up a .wav file with WWV, WWVB, me,
and my kids.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
to
send them reports of problems with the upcoming leap second.
They also deserve to be informed of systems which had no problems.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University
Satire!
http://www.thespoof.com/news/spoof.cfm?headline=s3i9970
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
/node1924.asp?intContentID=3197
also reported by Canada
http://www.ican.nf.net/R4update.htm
also reported by USCG
http://www.uscg.mil/hq/g-m/moa/docs/Saab505.pdf
http://www.uscg.mil/d14/units/feact/images/safety%20alert.pdf
Google is your friend.
--
Steve Allen [EMAIL PROTECTED
their own quality control processes.
Most of those forms came back to the town council stained with beer
and chips.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of California
not alone in thinking that one of the first things that
WP7A needs to do is to publish ITU-R TF.460 with no access restriction.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University
that
aside from English it's the German speakers who seem most fascinated
by the subject.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046
does not realize how the stories are connected.
The relevance between that and the LEAPSECS list becomes evident if
you take a really close reading of the following document.
http://tycho.usno.navy.mil/ptti/ptti2004/panel.pdf
--
Steve Allen [EMAIL PROTECTED]WGS-84
contribution in its archives.
It makes sense that the comments really do belong to the USWP7A
members and the Department of State, but I can cite a reference which
says the rules are that anyone can apply to become a member of USWP7A.
--
Steve Allen [EMAIL PROTECTED]WGS
have to keep it in perspective.
After all, it's not like the world is going to come to an end.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046
during which daylight time will be in use.
Could it be that the public awareness generated by that will interfere
with any further attempts to modify the public perception of time?
--
Steve Allen [EMAIL PROTECTED] WGS-84 (GPS)
UCO/Lick ObservatoryNatural
There is now a story in the Christian Science Monitor
http://www.csmonitor.com/2005/1013/p15s01-stgn.html
Their wireservice is already spreading it elsewhere.
--
Steve Allen [EMAIL PROTECTED] WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room
Do the folks in Roanoke really wonder about leap seconds?
http://www.roanoke.com/editorials/wb/wb/xp-34869
Will things get even stranger in the eight and a half days left for
comment on the USWP7A proposal?
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick
leaders.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http://www.ucolick.org/~sla/ Hgt
for comment
http://www.fcc.gov/ib/sand/irb/weritacrnc/review/nc1985wp7a/01.doc
The significant difference from last year seems to be that leap seconds
would stop not in 2007 but rather five years after the ITU general
assembly approves the change.
--
Steve Allen [EMAIL PROTECTED
receivers will fail by around 2070 or so, but that really should not
be much of a surprise or inconvenience to their owners.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of California
For those who were not on the recipient list (I was not) the most
recent leap seconds news is the public release of a letter from P.K.
Seidelmann which was sent in July. It was posted here:
http://igscb.jpl.nasa.gov/mail/igsmail/2005/msg00114.html
--
Steve Allen [EMAIL PROTECTED
astronomical portion.
Will the leap second misinformation never cease?
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa
legal
here well over a century ago, and it, in truth, the actual standard
by which things operate) then there could hardly be as much objection
as the dairies are having right now to the new Daylight Saving Time
legislation.
--
Steve Allen [EMAIL PROTECTED] WGS-84
the predictive capabilities.
It would be interesting to know why this option was excluded, but then
it would be interesting to really know why any of this is happening.
--
Steve Allen [EMAIL PROTECTED] WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room
.
Of course at the same instant the mean solar second of UT1 also lost
all connection with its original intent.
For most practical purposes the old FK5-based definitions will remain
adequate throughout the next century, or two, but after that...
--
Steve Allen [EMAIL PROTECTED
, a skilled navigator might get to 50 meter
accuracy under the best of circumstances. My unpracticed star shots
were 20 times worse than that, so the DUT1 would never have benefitted
me.
--
Steve Allen [EMAIL PROTECTED] WGS-84 (GPS)
UCO/Lick ObservatoryNatural
.
--
Steve Allen [EMAIL PROTECTED] WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165 Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http://www.ucolick.org/~sla
editorial process. Why would the
proponents risk such a public result?
--
Steve Allen [EMAIL PROTECTED] WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165 Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng
of discourse.
--
Steve Allen [EMAIL PROTECTED] WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165 Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046 Lng -122.06014
Santa Cruz, CA 95064http://www.ucolick.org
seriously. But for most of us, a second more or a second less is
more or less a question of taste.
and happy Bastille Day, albeit a bit late.
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
Nature interviewed Markus Kuhn about the leap second and did a good job.
UPI has turned the Nature story into an abomination; e.g.,
http://washingtontimes.com/upi/20050707-090936-2878r.htm
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick Observatory
/leapsecs/onlinebib.html#Event2005-07-05
http://www.ucolick.org/~sla/leapsecs/gambis.html
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural Sciences II, Room 165Lat +36.99858
University of CaliforniaVoice: +1 831 459 3046
Given that LEAPSECS seems to have gone aphasic, I point out this
http://www.febo.com/pipermail/time-nuts/2005-July/
wherein there is an ongoing thread about
IERS Bulletin C number 30
--
Steve Allen [EMAIL PROTECTED]WGS-84 (GPS)
UCO/Lick ObservatoryNatural
A new web article on leap seconds and timekeeping
http://itotd.com/index.alt?ArticleID=534
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E49 89
of the population of the
planet), the USNO believes the role of l'OBSPM for controlling civil
time is irrelevant?
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F
On Wed 2005-02-23T23:02:14 -0800, Steve Allen hath writ:
[ the New South Wales bill ]
defines UTC as being determined by the BIPM.
So it remains unclear who ultimately controls the fate of civil time
in New South Wales.
There is sociology behind this statement.
W. Lewandowski is Principal
On Tue 2005-02-22T18:27:36 -0800, Steve Allen hath writ:
Australia has decided to redefine its legal time scale.
The bill was introduced today.
Details of Bill 11 are found here.
http://www.parliament.nsw.gov.au/cgi-bin/isys/isyswebext.exe?op=geturi=/isysquery/irl66ce/1/doc/#hit1
The text
be matched to mean solar days or not.
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E49 89 0E FE 26 B4 14 93
resellers at
http://www.ear-rational.com/detail.php?id=16603
http://www.squidco.com/miva/merchant.mv?Screen=PRODStore_Code=SProduct_Code=4501
http://www.fusion3.com/works/rune210/
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046
Oxfordshire alone.
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E49 89 0E FE 26 B4 14 93
and sunset have required haversines. That's why the
newspapers publish them. Trigonometry was not required for simple
civil life.
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78
of a time scale is
also large. That cost is eternal, and eventually ends up demanding a
name change anyway.
The belief that a precisely-defined time scale can have a basic
characteristic changed without eventually incurring the cost of also
changing the name is a fantasy.
--
Steve Allen
/archives/nc1893wp7a/1.doc
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E49 89 0E FE 26 B4 14 93
/leapsecs/dutc.html
I would be obliged to know about it.
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E49 89 0E FE 26 B4 14 93
offer the following:
http://www.ucolick.org/~sla/leapsecs/SRG7Afinalreport.doc
http://www.ucolick.org/~sla/leapsecs/PropRevITU-RTF460-6.doc
It seems that atomic clock keepers have lost all interest in the
continued existence of mean solar time, sundials, or the analemma.
--
Steve Allen UCO
For the past two weeks in the USENET newsgroup comp.std.c there has
been a discussion of the handling of the C language time_t type now
and in the future. The hottest topic this past weekend has been the
handling of leap seconds, or lack thereof.
--
Steve Allen UCO/Lick Observatory
request that members of the precision timekeeping community,
especially any at the BIPM, enhance their web pages. It would be good
for the web surfing public to have a more authoritative (and hopefully
more accurate) website than my own detailing the inner workings of
atomic time.
--
Steve Allen
The photograph at
http://www.bipm.org/jsp/en/CCPicture.jsp?cc=CCTF
strongly suggests that the CCTF met according to schedule at the
beginning of the month.
Is anyone able to reveal any actions related to leap seconds?
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL
.
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E49 89 0E FE 26 B4 14 93
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E49 89 0E FE 26 B4 14 93
that they did not wait until tomorrow, for then
they would have been able to announce the release of the fate of the
leap second on the leap day.
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Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
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to within 256 seconds. Fortunately
that will be a relatively robust guess for many, many centuries.
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Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
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would need one leap second per day. Presumably
by that time humanity will have come up with a better idea.
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Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
PGP: 1024/E46978C5 F6 78 D1 10 62 94 8F 2E
throughout the solar system,
discontinuing leap seconds is not going to alleviate these sorts of
problems.
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Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http://www.ucolick.org/~sla
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that time is a quantity
whose value is subject to humanity, and not vice versa. The web
preview is at
http://www.discover.com/issues/mar-04/features/leap-seconds/
--
Steve Allen UCO/Lick Observatory Santa Cruz, CA 95064
[EMAIL PROTECTED] Voice: +1 831 459 3046 http
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