Leap Second in July

Discussion in 'Global Navigation Satellite Systems' started by Sam Wormley, Jan 5, 2015.

  1. Sam Wormley

    Sam Wormley Guest

    INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
     
    Sam Wormley, Jan 5, 2015
    #1
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  2. Sam Wormley

    Alan Browne Guest

    I for one will take that extra second (which will occur at 20:00
    locally) to reflect on how technology has had a positive impact on my life.
     
    Alan Browne, Jan 5, 2015
    #2
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  3. Sam Wormley

    oriel36 Guest


    You are all seriously out of your depth.

    The fundamental unit of timekeeping was never the rotation of the planet daily, the core observation precedes planetary dynamics and begins with the proportion between the number of days within an annual cycle with particularemphasis on the leap day. The dynamical translation of days/years into rotation/orbital circuits starts with the parent observation and attached references that inclusive of 4 orbital circuits there are 1461 rotations to thenearest rotation which breaks down into 365 1/4 rotations per circuit.

    Of course those who are engaged in handwringing about a leap second have tried to isolate daily rotation via stellar circumpolar motion and tied the Earth's rotation to a 3 minute 56 second deficit to 24 hours thereby coming up with a cumulative difference of 1 extra rotation per 24 hour day across an orbital circuit -

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

    So, lacking personnel who can begin with the observation that the 1461 rotation within 4 orbital circuits goes in two separate directions I have to witness this current mess who men can think properly nor act appropriately. All leap corrections now or in the future are made via the 365/366 rotation format of the parent 1461 rotation observation whereas perspectives of trueplanetary motions and solar system structure are made from a 365 1/4 rotations per circuit hence the two different directions.


    The parent reference is the first appearance of Sirius from behind the central Sun's glare in a line-of-sight observation which defines the Earth's orbital position in space using the number of rotations as a gauge -

    http://www.gautschy.ch/~rita/archast/sirius/heliacsirius.JPG



    The fact that Sirius skips an appearance by a day after the 4 cycles of 365days was the impetus for what has become the leap day rotation or February29th.

    Once again - the foundations of timekeeping linked to planetary dynamics was never the Earth's rotation in isolation, it is the number of rotations inclusive of an orbital circuit with 4 orbital circuits giving a close approximation. This handwringing about 'leap seconds' and rotation are from dunces who can't separate the parent 4 cycle observation into the 365 1/4 rotation per orbital circuit used for interpretative astronomy or the 365/366 rotations format which is used for predictive astronomy.

    Incredibly poor performance from the lot of you but the whole issue is still recoverable even at this late stage.
     
    oriel36, Jan 16, 2015
    #3
  4. Sam Wormley

    J. J. Lodder Guest

    Welcome back, we have been expecting you!
    And only ten days late!

    We were already fearing you might have dropped dead
    in the meantime.

    Do better next time,

    Jan
     
    J. J. Lodder, Jan 16, 2015
    #4
  5. Sam Wormley

    oriel36 Guest

    Do you not stand in shock at the reasoning which assigns an accumulative 3 minute 56 second deficit to 24 hours and then creates a mismatch between 24 hour days and rotations across an orbital circuit ? -

    http://sprott.physics.wisc.edu/lectures/seasons/sld004.htm

    Oh,I know, you are all experts in human timekeeping and especially linking stellar circumpolar motion directly to daily rotation in isolation !.

    Academics who can't anchor the rotation of the planet to the original referencing system don't deserve salaries and reputations -

    "on account of the precession of the rising of Sirius by one day in the course of 4 years.. therefore it shall be, that the year of 360 days and the 5days added to their end, so one day shall be from this day after every 4 years added to the 5 epagomenae before the New Year" Canopus decree,Egypt 236 BC

    Tell me that one about the non cyclical assertion that the Earth turned once in 23 hours at the time of the dinosaurs where they already jettisoned the 'solar vs sidereal' fiction for an even greater disruptive fiction of idealized rotation once in 24 hours back in the year 1820 -

    "At the time of the dinosaurs, Earth completed one rotation in about 23 hours," says MacMillan, who is a member of the VLBI team at NASA Goddard. "In the year 1820, a rotation took exactly 24 hours, or 86,400 standard seconds.. Since 1820, the mean solar day has increased by about 2.5 milliseconds."

    http://www.nasa.gov/topics/solarsystem/features/extra-second.html


    Pity that none of you can follow the reasoning on 3 different levels with two fictional assertions and one true one.
     
    oriel36, Jan 16, 2015
    #5
  6. Sam Wormley

    oriel36 Guest

    I would like nothing more than to believe this unmoderated forum acts like a back channel provided that readers understand completely what is at stakeand how to make the adjustment without destroying the two separate directions inherent in the parent observation that there are approximately 1461 rotations inclusive of 4 orbital circuits and not 1465 rotations corresponding to 1461 days as asserted by the horrific and childish 'solar vs sidereal'fiction.

    So,the choice is more towards a return to a dignified approach to timekeeping rather than that clever but fatally flawed 17th century notion regardingthe dizzy rotating celestial sphere framework in isolating the daily rotation of the Earth or any variation on that theme -

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

    The orbital motion of the Earth is defined by a very specific and ancient event known as the heliacal rising of Sirius but really reflects a line-of-sight observation where the first appearance of Sirius reflects the orbital motion of the Earth and the fixed central Sun as a reference.

    Get this right and generations upon generations of people will thank you, continue to ignore the issue and maintain a horrendous assertion and humanity will be buried in nonsense with all its dour and sullen consequences.
     
    oriel36, Jan 19, 2015
    #6
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