[LEAPSECS] DUT1 = 0

[Billy Croan]

Indeed.  I much enjoyed reading the translation I was able to find called
"Topsy-Turvy".  My first Verne novel.

https://gutenberg.org/ebooks/10547

Everyone, remember to shut off your phones when you're coding!

On Fri, Jul 8, 2022 at 3:52 PM Richard Clark s <scvt00 at gmail.com> wrote:

> Members of the list may find some amusement in 'Sans dessus dessous'
> by Jules Verne.
> English translations have appeared under the titles 'The Purchase of
> the North Pole' and
> 'The Earth Turned Upside Down'. It relates the further schemes and
> adventures of the leaders
> of the Baltimore Gun Club. Their activities would certainly be of
> interest to the IERS.
>
> Richard
>
> On Thu, Jul 7, 2022 at 1:30 AM Brooks Harris <brooks at edlmax.com> wrote:
> >
> > THE PLANET INSIDE
> > Scientists are probing the secrets of the inner core—and learning how it
> might have saved life on Earth
> >
> https://www.science.org/content/article/scientists-probing-secrets-earths-inner-core-saved-life-planet
> >
> > An accelerating high-latitude jet in Earth’s core
> > https://eprints.whiterose.ac.uk/108112/1/accepted_version.pdf
> >
> > Measurement of diurnal and semidiurnal rotational variations and tidal
> parameters of Earth
> >
> https://www.researchgate.net/publication/4681204_Measurement_of_diurnal_and_semidiurnal_rotational_variations_and_tidal_parameters_of_Earth
> >
> > Ocean and atmospheric tides standards (used for EIGEN gravity field
> modeling)
> >
> https://iers-conventions.obspm.fr/content/supporting_material/chapter6/BIPM_ocean_tides_2007.pdf
> >
> > "Prediction is difficult, especially about the future."
> >
> > -Brooks
> >
> >
> > On 2022-07-06 4:38 PM, Billy Croan wrote:
> >
> > Interesting that the reversal in direction for the first time in two
> decades (maybe more?) is continuing.
> >
> > I wonder if they will announce the cause of these adjustments.  i.e. a
> specific hurricane or earthquake or interstellar solar radiation?
> >
> > IERS' website leaves much to be desired.
> >
> > I'd love to know, if there was some physics student on this list, how
> much energy would it consume to physically alter the earth's rotation
> instead of using leap seconds.  Yeah, moving the world sounds like a
> de-facto 'can't be done' scenario.
> >
> > But we're talking an extremely small difference in rotation over the
> course of ten years.  If all aircraft landed (and used their brakes) in the
> same direction, would that impart a measurable spin over the course of a
> decade?  Could a few large gyros, operating continuously for a decade, even
> out the spin?  Would their energy cost over that time be more than the cost
> of the software bugs that leap seconds effervesce?
> >
> > On Wed, Jul 6, 2022 at 2:09 PM John Sauter via LEAPSECS <
> leapsecs at leapsecond.com> wrote:
> >>
> >> I hope everyone noticed that the IERS issued Bulletin D 142 today,
> >> which raises DUT1 from -0.1 to 0 as of July 28.  I attach the bulletin
> >> and my chart of values of DUT1.  I predict a negative leap second
> >> around the end of this decade.
> >>     John Sauter (John_Sauter at systemeyescomputerstore.com)
> >> --
> >> get my PGP public key with gpg --locate-external-keys
> >> John_Sauter at systemeyescomputerstore.com
> >>
> >> _______________________________________________
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> >
> >
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