A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Astronomy and Astrophysics » Amateur Astronomy
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

NEW LEAP SECOND



 
 
Thread Tools Display Modes
  #1  
Old May 20th 15, 03:37 AM posted to sci.astro.amateur
palsing[_2_]
external usenet poster
 
Posts: 3,068
Default NEW LEAP SECOND

Read it and weep, Gerald...

https://gma.yahoo.com/leap-second-wh...opstories.html

\Paul A
  #2  
Old May 20th 15, 07:21 AM posted to sci.astro.amateur
Chris.B[_2_]
external usenet poster
 
Posts: 2,410
Default NEW LEAP SECOND

On Wednesday, 20 May 2015 04:37:13 UTC+2, palsing wrote:
Read it and weep, Gerald...

https://gma.yahoo.com/leap-second-wh...opstories.html

\Paul A


Anyone want a free second?

Only used once.

Pristine condition in original packaging.

Collection only.

  #3  
Old May 20th 15, 08:05 AM posted to sci.astro.amateur
oriel36[_2_]
external usenet poster
 
Posts: 8,478
Default NEW LEAP SECOND

On Wednesday, May 20, 2015 at 3:37:13 AM UTC+1, palsing wrote:
Read it and weep, Gerald...

https://gma.yahoo.com/leap-second-wh...opstories.html

\Paul A


After you give yourself the choice to go beyond the 'solar vs sidereal' fiction a while ago by asserting rotation to multiple celestial objects I decided to protect you by withdrawing from any further comments.

Normally people enjoy their ability to reason out such things as the necessity of an extra leap day rotation (84,000 seconds) which brings the proportion of daily rotations to orbital circuits to a close proximity based on a parent observation of 1461 rotations to 4 orbital circuits.

Old men cackling with glee over a 'leap second' notion robs students and adults of the enjoyment of the original insight where timekeeping and the motions of the Earth merge for it is an offspring of the contemptible notion that the proportion of rotations to orbital circuits is 1465 rotations to 4 circuits.

There is no time for weeping or bitterness as long as a community insists in making fools of themselves by not going to the historical and technical foundations of timekeeping and the external cyclical references from which the 24 hour system and the Lat/Long system emerged.



  #4  
Old May 20th 15, 10:34 PM posted to sci.astro.amateur
Quadibloc
external usenet poster
 
Posts: 7,018
Default NEW LEAP SECOND

On Wednesday, May 20, 2015 at 1:05:04 AM UTC-6, oriel36 wrote:

Old men cackling with glee over a 'leap second' notion


There would be nothing to cackle with glee about were it not for your adamant
denial that the 'leap second' makes sense.

Before people had atomic clocks, the motions of the planets were found to be
best expressed in Ephemeris Time, which was a tad over 32 seconds out of step
with civil time when it was abandoned and atomic time was adopted, using a
second intended to be of the same length as its second, as the new civil time
scale.

It is not pretentious to seek the ability to perform timekeeping with very high
accuracy and precision so that equipment for, say, radio communications can be
accurately tuned, as an example. This has meant that the clock, not the Sun, is
held as the ultimate standard. The clock is set to what the Sun _was_ doing at
a time in the past, and then is no longer changed - and the Earth is seen to
slow down due to the tidal effects of the Moon's gravity, exactly as Newton
predicted.

John Savard
  #5  
Old May 21st 15, 02:59 AM posted to sci.astro.amateur
Sam Wormley[_2_]
external usenet poster
 
Posts: 3,966
Default NEW LEAP SECOND



INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)

SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE

SERVICE DE LA ROTATION TERRESTRE DE L'IERS
OBSERVATOIRE DE PARIS
61, Av. de l'Observatoire 75014 PARIS (France)
Tel. : 33 (0) 1 40 51 22 26
FAX : 33 (0) 1 40 51 22 91
e-mail :
http://hpiers.obspm.fr/eop-pc

Paris, 5 January 2015

Bulletin C 49

To authorities responsible for the measurement and distribution of time


UTC TIME STEP
on the 1st of July 2015


A positive leap second will be introduced at the end of June 2015.
The sequence of dates of the UTC second markers will be:

2015 June 30, 23h 59m 59s
2015 June 30, 23h 59m 60s
2015 July 1, 0h 0m 0s

The difference between UTC and the International Atomic Time TAI is:

from 2012 July 1, 0h UTC, to 2015 July 1 0h UTC : UTC-TAI = - 35s
from 2015 July 1, 0h UTC, until further notice : UTC-TAI = - 36s



Leap seconds can be introduced in UTC at the end of the months of December
or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
six months, either to announce a time step in UTC or to confirm that there
will be no time step at the next possible date.


Daniel Gambis
Head
Earth Orientation Center of IERS
Observatoire de Paris, France



  #6  
Old May 21st 15, 06:23 AM posted to sci.astro.amateur
oriel36[_2_]
external usenet poster
 
Posts: 8,478
Default NEW LEAP SECOND

On Thursday, May 21, 2015 at 2:59:38 AM UTC+1, Sam Wormley wrote:


INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)


The 'leap second' notion occupies the same intellectual standing as the guy who comes to this forum and thinks he sees a human skull in a coal vein and draws the inevitable conclusion.

To be out by a full rotation within an orbital circuit is intolerable by virtue that the entire timekeeping system and where it merges with the planetary cycles has never been explained properly.

This is an incredibly painful experience to witness the 'solar vs sidereal' fiction expressed in its full horror -

The 'leap second' notion occupies the same intellectual standing as the guy who comes to this forum and thinks he sees a human skull in a coal vein and draws the inevitable conclusion.

To be out by a full rotation within an orbital circuit is intolerable by virtue that the entire timekeeping system and where it merges with the planetary cycles has never been explained properly.

This is an incredibly painful experience to witness the 'solar vs sidereal' fiction expressed in its full horror -

"During one orbit around the Sun, Earth rotates about its own axis 366.26 times" Wikipedia

Why should an entire civilization suffer this indignity each and every time these academics announce the Earth is slowing down/speeding up leading to a leap second while they can't express the logic behind the 24 hour system and the Lat/long system as an outrigger of the calendar framework ?.

The 'leap second' notion is indicative of a situation where academics refuse to accept the dynamics behind the leap day rotation which closes out 4 orbital circuits of the Earth around the Sun to a close approximation.

 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
The leap day oriel36[_2_] Amateur Astronomy 29 August 21st 15 09:54 PM
This 'leap second' nuisance oriel36[_2_] Amateur Astronomy 4 January 13th 12 05:49 PM
To Leap or Not to Leap: Scientists debate a timely issue Sam Wormley Amateur Astronomy 7 April 24th 06 08:42 AM
LEAP YEAR, LEAP SECOND 31.12.2005, CALENDAR.=====.. [email protected] Amateur Astronomy 5 December 29th 05 04:14 AM
Concerning the leap day Oriel36 Amateur Astronomy 0 April 29th 04 09:31 PM


All times are GMT +1. The time now is 09:07 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 SpaceBanter.com.
The comments are property of their posters.