Steve Allen wrote:
Warner Losh hath writ:
[*] Unless I'm an astronomer or care which way the earth is pointing to
sub-minute accuracy.
The GPS system, and the other GNSS, must know that in order to operate.
The satellite tracking code, the VLBI code, the LLR code have all been
written
on its local oscillator until you reboot it, since that is the only
thing which POSIX defines support for.
Pure POSIX is an oxymoron of cosmic proportions - and the word POSIX appears
nowhere in the Draft Revision to ITU-R Recommendation TF.460-6.
Rob Seaman
NOAO
--
The means we use must
They aren't moving anything. They are removing access to the Earth
orientation timescale.
Having failed to reach consensus, they should similarly fail to vote.
Rob Seaman
NOAO
--
Tony Finch wrote:
Rob Seaman wrote:
As has been said here many times they are two different kinds
Fewer than some of the other stories :-)
A pretty reasonable Master's thesis in communications theory could be worked up
tracking the web of these stories. There are several bloodlines from the news
services and mutations of expression (whether errors or not) that propagate to
later
IWarner Losh wrote:
Universal Time is an abstract definition. It wasn't designed at all. It
models the time of day, on the average, of an important historical
observatory in a nation that had the political clout to get its observatory
named primary over all the other nations that had
/DUT1 issue below.
Rob
--
Begin forwarded message:
From: Rob Seaman sea...@noao.edu
Subject: Re: [LEAPSECS] The Economist
Date: January 13, 2012 10:13:49 AM MST
To: Leap Second Discussion List leapsecs@leapsecond.com
Reply-To: Leap Second Discussion List leapsecs@leapsecond.com
Hi Tom
A new talking point from a long time listener, first time caller:
Begin forwarded message:
From: Seago, John
Subject: It just occurred to me...
Date: January 18, 2012 6:39:05 PM MST
It just occurred to me that, if the ITU votes to abolish leap seconds,
some people may think that takes
Tony Finch wrote:
Daniel R. Tobias wrote:
Warner Losh wrote:
But it just so happens that this draft changes UTC to match the
POSIX definition of time_t where leap seconds don't really exist...
It seems to be a rather blatant example of geek arrogance to say
that, when a tech standard
http://www.nytimes.com/images/2012/01/19/nytfrontpage/scan.jpg
(below the fold)
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
Poul-Henning Kamp wrote:
Unsubstantiated rumours seems to say that leap seconds are gone,
At least one more. I hear Somerset is lovely in June...
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
Poul-Henning Kamp wrote:
Can we even find one single qualified time-nut in Geneva if we try ?
None of us can afford them:
http://www.ablogtoread.com/breaking-down-the-2011-grand-prix-d’horlogerie-de-geneve-awards/
BTW, is there anything actually informative in the youtube video? I
His pronounciation of lip seconds probably doesn't help.
I'll definitely buy you a beer when this is all over, if only for this comment.
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
So more Bush v Gore than Dewey beats Truman.
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
Richard B. Langley shared:
Dear colleagues,
just to let you know that the decision for abolishing the leap second here
at the ITU Radiocommunication Assembly has in the end not been made.
VLADIMIR:
That passed the time.
ESTRAGON:
It would have
So that's it for RA-12. What about WRC-12?
http://abcnews.go.com/International/wireStory/leap-lives-week-15394991#.TxiOVJggIqY
Rob
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
on
TASS and the other boutique news agencies. Might be interesting to see
coverage of the home team in each case.
Rob
--
On Jan 19, 2012, at 2:50 PM, Rob Seaman wrote:
So that's it for RA-12. What about WRC-12?
http://abcnews.go.com/International/wireStory/leap-lives-week-15394991
Warner Losh wrote:
On Jan 19, 2012, at 10:57 AM, Stephen Colebourne wrote:
Consider it an opportunity to find consensus.
That is unlikely if people believe it is axiomatic that time is fundamentally
time of day and not elapsed time.
But I don't. Time is both. I believe it axiomatic that
http://www.itu.int/net/pressoffice/press_releases/2012/03.aspx
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
Poul-Henning Kamp wrote:
The only game changer I can spot, is if Daniel Gambis starts to announce
leapseconds 30 months in advance with stated intention to get it up to five
years, as soon as the science supports DUT11s.
'Daniel Gambis said that the IERS could confidently predict leap
Gerard Ashton wrote:
For the smallest time resolution required, we might suppose that at some
point in the future there might be a need to account for transmission delay
from one part of a computer to another. The smallest location that I can
imagine being of interest even in a future
Tony Finch wrote:
if the people in a country or region don't like the alignment between their
clocks and the sun, they can use their political processes to change their
timezone offset and/or DST rules.
But Jacob Rees-Mogg's suggestion that:
Somerset should have its own time zone, with
The Long Now Foundation has reached a milestone in the 10,000-Year Clock
project, the completion of the 500 foot deep shaft that will contain the clock:
http://www.1yearclock.net/updates.html
I believe grinding spiral steps into the wall all the way down comes next.
Rob
Poul-Henning Kamp wrote:
To avoid thread-divergence, I have collected some responses here:
Am happy to see such an effort and agree generally with previous comments,
expecially Mark's and Steve's. Will keep my editorial comments to a minimum
(here) to squelch divergence, but I will point out
Poul-Henning Kamp wrote:
First of all, I'm not particular wild about floating point numbers,
Then others will feel the same way and will always immediately cast the
returned values into integers, either rounding to seconds, scaling to milli- or
microseconds, or splitting into two ints holding
Poul-Henning Kamp wrote:
Michael Deckers writes:
Comparing IEEE floating point values holds its surprises
because values may be incomparable,
In which case they are not valid timestamps, and you get
EINVAL if in a library or whatever you asked for in your
own code.
Testing for
Warner Losh wrote:
So I can't do operations on UTC time stamps that are more than 6 months in
the future?
It depends what operations, and what a timestamp is deemed to mean. Currently
UTC approximates UT; it is stationary wrt time-of-day. Myriads of human
activities are diurnal and
Daniel R. Tobias wrote:
Usually such events are only fixed relative to local civil time in the
place where the event is to take place, in which case they would shift
relative to real TAI time with all changes to the local time, from leap
seconds to changes in time zone boundaries and
Tony Finch wrote:
Rob Seaman wrote:
Virtually all of our meetings take place in more than one place since we
have sites in Arizona and Chile, Corporate HQ in DC, partners in
California and Hawaii (and a dozen other places). I imagine this is not
atypical these days. Scheduling changes
We should offer a prize when a new talking point is raised that hasn't appeared
here before. I don't remember this one :-)
Very interesting. What about the other hands? The watch on my wrist is of the
stepping, not sweeping, kind. But the other hands appear to move at a
continuous pace.
Might I suggest that real is a poor descriptor here (no philosophy intended)?
There is a vast prior art of real time that means something entirely
different. One facet of the idea is to use IEEE floating-point formats to
express time values. Whatever the desirability of that, is this really
On Jan 24, 2012, at 9:22 PM, Tom Van Baak wrote:
The one-second dial could simply go around twice.
Which is what tv_nsec does...
Yes, but not quite so stylishly.
Maybe he could make the grasshopper actually leap.
___
LEAPSECS mailing list
Tony Finch wrote:
There's also the railway clock genre, where each clock's second hand ticks or
sweeps slightly fast, and the clock waits at the top of the minute for a
synchronization pulse. Handles leap seconds easily, if the master clock does
:-)
Poul-Henning Kamp wrote:
The name refers to the data type.
Indeed, but real time already means something completely different in
computing. I had a boss who named a server data (after the Star Trek
character). The resulting confusion was monumental.
The data type is more properly termed
Damn! Yet another joke I'll never be able to explain to my family.
On Jan 25, 2012, at 11:50 AM, Steve Allen wrote:
On Wed 2012-01-25T18:48:28 +, Poul-Henning Kamp hath writ:
I really don't think the name is as important as the semantics.
Stop the presses! We should forward this to
Tony Finch wrote:
You'll have to explain why you think videoconferencing breaks the Olson
timezone database to me, because I don't get it.
I don't recall saying any such thing. The original reply was to this comment
from Daniel R. Tobias:
Usually such events are only fixed relative to
-and-paste old
messages! -- M.
On Nov 15, 2011, at 8:47 AM, Rob Seaman wrote:
I believe you actually mean Pacific Standard Time, not PDT. See you at
18:00 UTC 15 Nov 2011?
On Nov 14, 2011, at 12:46 PM, M. wrote:
We will have our regular telecon tomorrow morning at 10:00 PDT...
Which
, maybe spasmodic? Certainly whimsical.
Would welcome a more fundamental citation than wikipedia.
Rob
--
On Jan 25, 2012, at 9:33 AM, Rob Seaman wrote:
Clive D.W. Feather wrote:
Rob Seaman said:
Exactly. The search space is a lot larger than explored so far. Consider
a leap second
http://www.youtube.com/watch?v=C-2UqYW9SEs
The pertinent phraseology:
We return this draft revision of recommendation four-six-zero to Study
Group 7 for further work leading to the development of a continuous standard
taking into account all technical options that may be available and
Almost overlooked this one! That would never do...
Clive D.W. Feather wrote:
Rob Seaman said:
Requirements are discovered, not imposed.
This from the person who insists that a priori civil time must synchronize
with the sun?
Rather, it is ITU-R Study Group 7 that has insisted
Discuss:
http://www.universetoday.com/93494/is-venus-rotation-slowing-down/
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
On Feb 10, 2012, at 8:37 PM, Steve Allen wrote:
On Fri 2012-02-10T17:54:28 -0700, Rob Seaman hath writ:
http://www.universetoday.com/93494/is-venus-rotation-slowing-down/
We need a Venus lander which can remain in operation for a year while
delta VLBI measurements are made of its
On Mar 24, 2012, at 1:54 PM, Steve Allen wrote:
There is also the interesting assertion that in the US the NBS was
responsible for frequency and USNO was responsible for time.
No comment (or strong opinion) about the politics. Frequency and time are not,
however, interchangeable concepts
Warner Losh wrote:
Rob Seaman wrote:
Time, on the other hand, is a complex concept of diverse meanings. It will
come as no surprise that I regard civil timekeeping as most closely allied
with its meaning as an angular reference.
The close alignment is due to the historical definition
I'm giving a colloquium in a couple of weeks and would welcome suggestions for
neat timekeeping gizmos (borrowed or bought) to spark interest.
Rob
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
I'm in Arizona, the talk is in Philadelphia.
On Apr 3, 2012, at 11:06 AM, Warner Losh wrote:
Where are you located?
Warner
On Apr 3, 2012, at 11:59 AM, Rob Seaman wrote:
I'm giving a colloquium in a couple of weeks and would welcome suggestions
for neat timekeeping gizmos (borrowed
Eric Fort wrote:
Somewhat depends upon the intended audience
Undergraduate physics/astronomy students.
but the following items come to mind
Great list! Thanks.
and I'll finish with 2 references from which to pick more.
I don't think I saw these. Would welcome references of all sorts!
Hi Richard,
As part of the intro and foundations, when you bring up the pendulums be sure
and start by taking your pulse.
I'll start with this:
http://svs.gsfc.nasa.gov/vis/a00/a003800/a003894/moon_720p30.mp4
From Dial-A-Moon:
SPLASH is Systems, Programming, Languages and Applications: Software for
Humanity, which asserts itself the premier conference at the intersection of
programming languages, programming, and software engineering, being held this
year in my home town of Tucson. SPLASH is an umbrella for OOPSLA
On May 28, 2012, at 12:11 AM, Poul-Henning Kamp wrote:
http://xkcd.com/1061/
Not done: http://pweb.jps.net/~tgangale/mars/jupiter/hirata.htm
(Stale links, see: http://pweb.jps.net/~tgangale/mars/jupiter/jupiter.htm)
___
LEAPSECS mailing list
Greenwich Mean Time, since the original TF.460 was created with this in mind:
GMT may be regarded as the general equivalent of UT.
Rob Seaman
NOAO
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
Some other issues: pointing the telescope is not the same as tracking, solar system targets move at non-sidereal rates, IR cameras and others at non-visible wavelengths have to be pointed with blind offsets, fiber-fed spectrographs place hundreds (thousands in the near future) of tiny apertures
Netflix survived! Rosemary and Thyme are tracking down another body in the
garden...
--
On Jun 30, 2012, at 4:59 PM, Rob Seaman wrote:
It may be hard to sort out the leap second issues (my heart is palpitating)
from the massive storms and power outages in the eastern USA:
http
It may be hard to sort out the leap second issues (my heart is palpitating)
from the massive storms and power outages in the eastern USA:
http://www.reuters.com/article/2012/06/30/usa-weather-storm-idUSL2E8HU2WN20120630
Rob
___
LEAPSECS
On Jul 1, 2012, at 11:03 AM, Poul-Henning Kamp wrote:
It means that Daniel Gambis wasn't even close to the mark when he told AP on
friday:
There should be no noticeable affect or inconvenience on
computers or any other technology that requires precise
timekeeping because
Interesting. A few questions spring to mind. Let me preface them by stating
that this is far from my area of expertise and I'd be delighted to be educated
here.
1) What are the units on the y-axis?
2) This shows the surge continuing for at least half a day after the event with
no
On Jul 2, 2012, at 1:47 PM, Poul-Henning Kamp wrote:
The original source may be this:
https://plus.google.com/117024231055768477646/posts/2pkWbDiEDQG
You'd think google+ would let you run google translate…
1) What are the units on the y-axis?
Watt.
…
It's only 135 kW, not
Zefram wrote:
Hourly cron jobs. Most people are idiots and schedule them all for the
top of the hour. The graph also shows discernible regular peaks for
aligned cycles of 30, 15, 10, and 5 minutes. Of course, for the same
reason, daily cron jobs are mst often scheduled for midnight, so
On Jul 6, 2012, at 6:11 PM, Michael Spacefalcon wrote:
The first countries to implement the kind of time standard that I propose
will most likely be ones that don't have any speed limits at all, countries
like the Principality of Sealand.
Sealand is about an 1/8th of an acre. A speed limit
On Jul 9, 2012, at 5:24 AM, Gerard Ashton wrote:
I just read an explanation of what went wrong with some Linux systems:
Yes, that and the Landslide analysis are very good. I also found PHK's
comments on leapsecs to be illuminating from the FreeBSD perspective.
It would be tempting to
On Jul 9, 2012, at 7:11 AM, Warner Losh wrote:
There's four different Unix implementations of leap seconds
(1) Repeat the first second of the next day.
(2) Repeat the last second of leap day.
(3) Freeze time
(4) slew it in over many hours.
Just to echo a well traveled talking point here,
On Jul 9, 2012, at 7:21 AM, Warner Losh wrote:
The biggest problem with leap seconds is the attitude Well, it is only a
second, I don't have to worry about getting it right.
I can't say that's the operative attitude. More generally the response seems
to be Say wha?!?
Turns out, getting
On Jul 9, 2012, at 8:13 AM, Warner Losh wrote:
Except that isn't POSIX time_t compliant, alas. That's the other variation I
forgot, which is to use the right timezone files, which also have their own
set of problems for long-running applications (a variation on getting the UTC
leap second
On Jul 9, 2012, at 8:24 AM, Poul-Henning Kamp wrote:
In message 46d53f0b-bf98-46c0-a485-4a1494e2c...@noao.edu, Rob Seaman writes:
More deeply engrained yet is the simple fact that day on any
planet, dwarf planet, or (spheroidal) moon means the synodic day.
Yes +/- 4 hours or so
On Jul 9, 2012, at 8:53 AM, Warner Losh wrote:
Try to bring up the leap second in most computing contexts and people roll
their eyes at the annoying pedant in the corner who needs to get a life…
Perhaps less so in the future. We should build on that. We might start by
sitting front and
On Jul 9, 2012, at 10:30 AM, Poul-Henning Kamp wrote:
I'm not talking about astronomy, I'm talking about how humans have
implemented day in their daily lives.
I'm not talking about astronomy either. But when discussing how civil
engineers implement gravity on a daily basis, it sometimes
On Jul 10, 2012, at 12:44 AM, Clive D.W. Feather wrote:
Rob Seaman said:
The issue (discussed many times previously) is to avoid introducing a
secular trend into UTC.
And, as also discussed, you have yet to show that the woman on the Clapham
omnibus even cares.
Wikipedia gives context
On Jul 10, 2012, at 7:09 AM, Warner Losh wrote:
On Jul 10, 2012, at 7:12 AM, Daniel R. Tobias wrote:
On 9 Jul 2012 at 14:31, Warner Losh wrote:
First, the current right database can't be updated in place:
you have to restart.
M$ Windows people are used to constantly having to restart
Warner,
Your message seems snarkier (more cranky, irritable) than mine. You
speculate on what I do or don't understand, and on what I am or am not doing.
All of these are irrelevant. I'm a big fan of FreeBSD and PHK's MD5 password
hashing, but still disagree with his position on leap
Tony Finch wrote:
DST exists because people care more about the time of sunrise than the time
of noon.
Poul-Henning Kamp wrote:
Sunset actually, but yes.
Tony Finch writes:
The reason I say sunrise is because DST reduces the time variation of sunrise
and increases the variation of
On Aug 31, 2012, at 11:58 PM, David Malone wrote:
I have 4-year versions of the fraction of servers advertising
leapbits graph here:
http://www.maths.tcd.ie/~dwmalone/time/leap2012/ntp-leapbits.png
It seems from this that there are always a few people advertising
leap seconds when
On Sep 4, 2012, at 11:06 AM, Warner Losh wrote:
The ntp announcement thing is just one more brick in this rather large wall.
Nah, just more spray paint. It appears that the ntp thing is nothing new; if
there are bugs fix them.
Redefining UTC to be something other than Universal Time would
Happy BBB! (2013 in base-13)
Plenty of stuff broken around here, but nothing related to timekeeping
shenanigans that I'm aware of.
Rob
--
On Dec 30, 2012, at 7:58 PM, Zefram zef...@fysh.org wrote:
Steve Allen wrote:
Also the root of the bug which bricked Microsoft Zune media players
for
On Jan 21, 2013, at 10:28 AM, Steve Allen wrote:
Radio Regulation 2.5 implies that UTC is connected with earth rotation:
2.5 Whenever a date is used in connection with Coordinated
Universal Time (UTC), this date shall be that of the prime
meridian at the appropriate time, the prime
The Google Translate version is relatively readable. Just copy the URL into
the from side:
http://translate.google.com
and let it auto detect the language. It's only logical that Jean-Claude Killy
would personally request everybody switch to permanent winter time :-)
Rob
--
On Feb
query them with an atomic system call). If the BIPM now states
otherwise, then what does day mean to them?
Perfection of means and confusion of goals seem, in my opinion, to
characterize our age. - A. Einstein, 28 September 1941
Rob Seaman
National Optical Astronomy Observatory
--
On Mar
definition of
continuous) under a different name, and leave UTC (~ GMT) alone.
Rob Seaman
National Optical Astronomy Observatory
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
On Mar 20, 2013, at 2:29 PM, Warner Losh i...@bsdimp.com wrote:
TAI isn't disseminated.
Well, yes it is. From ITU-R TF.460-6:
E DTAI
The value of the difference TAI – UTC, as disseminated with time signals, shall
be denoted DTAI. DTAI = TAI − UTC may be regarded as a correction to be added
On Mar 20, 2013, at 6:02 PM, Joseph M Gwinn gw...@raytheon.com wrote:
I would propose that ITU is using continuity and uniformity in their
mathematical definitions, implying that the intent is that at least in
definitional theory, UTC be mathematically continuous with all its
derivatives
as collateral damage.
To answer the question, a new IAU UTC working group has been formed. There was
also controversy at the time.
Rob
--
On Mar 21, 2013, at 5:40 AM, Tony Finch d...@dotat.at wrote:
Rob Seaman sea...@noao.edu wrote:
10. the International Earth Rotation and Reference Systems Service
Hi Kevin,
I'm still puzzled at the reasons for stating that UT1 should not be
considered as a time scale in this recommendation. How does that serve this
recommendation? This is a bit of a different question from evaluating UT1 as
a time scale. Instead, it is a question about the
On Apr 29, 2013, at 1:25 PM, Tom Van Baak t...@leapsecond.com wrote:
I reject the notion that UT1 is angle and UTC is time.
Then you reject Recommendation CCTF 6 (2012):
http://www.bipm.org/utils/common/pdf/CCTF19.pdf
___
LEAPSECS mailing
...@fysh.org wrote:
Rob Seaman wrote:
There has been an attempt to redefine the language for years, since
an earlier revision of ITU-R TF.460 was edited to remove the original
language:
GMT may be regarded as the general equivalent of UT.
This is actually edited from earlier language
FYI.
The direct link is:
http://www.iers.org/nn_317904/SharedDocs/Publikationen/EN/IERS/Documents/IERS__Leap__Seconds,templateId=raw,property=publicationFile.pdf/IERS_Leap_Seconds.pdf
Presumably all parties will welcome the IERS improving its products:
Future considerations
In
So if Linux mis-implements USB, it's reported that way:
http://www.paritynews.com/2013/08/22/2437/misinterpretation-of-standard-probably-causing-usb-disconnects-on-resume-in-linux/
...but if Linux mis-implements UTC, we get:
(or Linux-related software), not a bug in leap
seconds. That bug was the result of the same sort of misinterpretation of a
standard - a standard that has been in effect for at least twice as long as USB.
Rob Seaman
National Optical Astronomy Observatory
On Aug 23, 2013, at 10:17 AM, Warner Losh i...@bsdimp.com wrote:
The relative magnitude of the bug is several times worse than the USB bug.
If this assertion is true, then it should be possible to quantify it. They
both remain Linux bugs, however.
The side effects were kernel crashes or
On Sep 10, 2013, at 4:00 AM, mc235960 mc235...@gmail.com wrote:
Are these published? I tried the Univelt.com site, but a search did not give
any results.
Proceedings usually take several months. The schedule for the Exton
proceedings was quite remarkably short. Charlottesville is nearing
On Jan 2, 2014, at 1:48 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
Ignorance is never good policy.
Poul-Henning
The irony is strong with this one.
Day is a more established concept than duration. Both are needed to express
the inherent complexity of timekeeping in either real or
On Jan 2, 2014, at 8:43 AM, Warner Losh i...@bsdimp.com wrote:
On Jan 2, 2014, at 4:25 AM, Rob Seaman wrote:
On Jan 2, 2014, at 1:48 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
Ignorance is never good policy.
Poul-Henning
The irony is strong with this one.
Day is a more
two previous meetings in 2011
and 2013):
http://www.cacr.caltech.edu/futureofutc/aas223/
To maximize flexibility for attendees, the Future of Time agenda is split into
two 2 hour sessions (below). Your participation will be welcome at either or
both sessions.
Rob Seaman, NOAO
Ken
On Jan 2, 2014, at 7:35 PM, Warner Losh i...@bsdimp.com wrote:
I think time passed before there was an earth to have nights or days.
Glad the inherent connection between Earth and length of day is recognized.
Does anybody have references for units of precise (short) duration prior to
for us to pass on to
other interested individuals in (and beyond) our organisations to help widen
the awareness of the subject.
Thank you,
Peter Vince (London, England)
On 3 January 2014 01:32, Rob Seaman sea...@noao.edu wrote:
Hola,
It is not without
PDFs of the slides from the talks yesterday (5 Jan 2014) are now available at:
http://www.cacr.caltech.edu/futureofutc/aas223/
Rob
--
PS - In addition to many other links, see C. A. McDaniel Wyman's Master's
Thesis, The Leap Second Debate midway down:
:
http://futureofutc.org/aas223/
Rob Seaman
National Optical Astronomy Observatory
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
http://six.pairlist.net/mailman/listinfo/leapsecs
On Jan 10, 2014, at 9:03 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
Charles Stross is one of the most gifted and insightfull Science
Fiction writers of all time, ...
A good introduction to his is this short story about coffee:
On Jan 13, 2014, at 1:54 PM, John Hawkinson jh...@mit.edu wrote:
In other news, the count of the number of times in this thread folks
have said Universal Time Coordinated instead of Coordinated
Universal Time is higher than I would expect. (Coordinated Universal
Time is the proper expansion
On Jan 14, 2014, at 3:48 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
In message 20140114103334.gv21...@fysh.org, Zefram writes:
It's dubious to say that they meant UTC if they weren't aware of
leap seconds. As that's the defining feature of UTC [...]
No.
The defining feature of
On Jan 14, 2014, at 4:53 PM, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
It's not like Ken Dennis looked at leap-seconds and went Naah,
who cares, or even braindead! We'll skip that.”
Presumably you mean the other Ken Dennis:
Richard Clark writes:
I've always liked the view that the first century spanned the years 1-99.
Poul-Henning Kamp replies:
Yes, the appeal is obvious, apart from that pescy detail of “century meaning
hundred...
Richard had already rendered objection moot:
The current year numbering
On Jan 15, 2014, at 3:14 PM, Richard Clark rcl...@noao.edu wrote:
Also centipedes don't have exactly 100 legs.
…though they’ll typically have an even number ;-)
___
LEAPSECS mailing list
LEAPSECS@leapsecond.com
401 - 500 of 646 matches
Mail list logo
