Re: New book identifies Ireland as Atlantis

From: Oriel36 (geraldkelleher_at_hotmail.com)
Date: 08/12/04


Date: 12 Aug 2004 12:05:11 -0700

Martyn Harrison <nospam@spammers.of.the.world.unite> wrote in message news:<aeujh057f0dujorpmfl2vtbm6clhhjc7eb@4ax.com>...
> http://www.austlii.edu.au/au/cases/sa/SAIRC/1997/50.html
>
>
> Apparently on date 10 Aug 2004 10:04:53 -0700, geraldkelleher@hotmail.com
> (Oriel36) said:
>
> >Martyn Harrison <nospam@spammers.of.the.world.unite> wrote in message news:<iqleh0pu0olgfg0270ofp0oncfbgdrksv6@4ax.com>...
> >> http://www.austlii.edu.au/au/cases/sa/SAIRC/1997/50.html
> >>
> >> The choice of what units to divide up circles, time and (for that matter) pies,
> >> is somewhat arbitrary, they're not so much invented as chosen. 24 is a good
> >> unit because you can divide that evenly into 2, 3, 4, 6, 8 and 12 pieces. >
> >
> >This point of view is common among physicists and represents an
> >undisciplined point of view.
> >
> >You can choose 24 hours for a day and 360 degrees for a circle or
> >sphere and make a correlation out of the two. 24 hours = 360 degrees,1
> >hour = 15 degrees and 4 minutes = 1 degree.This is the basis for the
> >development of accurate clocks to act as rulers of distance in solving
> >the longitude problem.
> >
> >http://rubens.anu.edu.au/student.projects97/naval/defin.htm
> >
> >What you cannot do,and empiricalists did via Flamsteed,is alter the
> >correlation between axial rotation through 360 degrees and the rate of
> >a clock to determine an alternative figure of 23 hours 56 min 04 sec
> >for axial rotation.
>
> Er, yeah I can, and I don't need any technology to do it, I can measure it
> empirically and calculate to the best of my measurements.
>
> I can count days with a calendar until I know that there are 360 days, then 365
> days, and then we come up with the leap year to keep seasons in place at 365.25
> days per year. Romans got this far, so I reckon it's ok for me.
>

To determine the annual orbital cycle as 365 days 5 hours 49 min it is
required to determine the equable 24 hour day first,in other words
without the equable day there is no equable hour,minute and second by
which to calculate the fraction of the year which is required for the
calendar system.

The determination of the equable day has nothing in common with the
calendar system (with its addition of a leap day).The equable 24 hour
day makes use of the Earth's axial rotation to the Sun and the noon
determination along a longitude meridian when a location along the
polar axis rotates to face the Sun directly.Our ancestors devised a
loop system known as the Equation of Time which equalises the natural
variation for each complete axial rotation to facilitate the seamless
transition from one 24 hour day to the next which is why Monday will
have 24 hours followed by Tuesday with the same 24 hours.

John Harrison developed accurate clocks based on the principle that
the Earth rotates through 360 degrees in 24 hours in tandem with the
Equation of Time adjustment.

"If it were necessary to establish the accurate time of an event we
should have to enquire more particularly whether the time of the
nautical day was on that ship carried on from the noon on which it
began, or adjusted to the noon on which it ended, or perhaps altered
during the night from one to the other, as is more or less the present
practice in merchant ships, though H.M. Navy keeps Standard Time. In
default of better information we may without serious error (in days of
sail) take the recorded hour as in the apparent time of the meridian
of longitude mentioned in the account, and for form's sake apply the
equation of time to reduce to civil time of the meridian."

http://www.aandc.org/research/nautical_time_and_date.html

Harrison met opposition from astronomers who had their own ideas on
the matter and this is where you ultimately go wrong.Your method was
only developed in 1676 by Flamsteed who turned millenia of observed
wisdon on its head and linked the Earth's rotation directly to stellar
circumpolar motion,this one -

http://home.t-online.de/home/sjkowollik/polaris.jpg

He used the ancient assumption of the 24 hour/360 degree equivalency
based on the Equation of Time correction and shifted it to 23 hours 56
min 04 sec to generate the worst astronomical picture that is
possible,this one -

http://astrosun2.astro.cornell.edu/academics/courses//astro201/sidereal.htm

Let me show you how he did it based on the 24 hour/360 degree
equivalency for axial rotation.

24 hours = 360 degrees
 1 hour = 15 degrees
 4 min =1 degree

3 min 56 sec = .986 degree

24 hours minus 3 min 56 sec = 23 hours 56 min 04 sec

Again,contemporaries in terms of geometry and astronomy are the
dumbest race ever to set foot on the planet.In order to get the axial
rotational/stellar circumpolar equivalency,Flamsteed basically hid
the.986 degree/3 min 56 sec difference in orbital motion which puts
it in direct conflict with Kepler's second law.

"our clocks kept so good a correspondence with the Heavens that I
doubt it not but they would prove the revolutions of the Earth to be
isochronical... "

http://www-gap.dcs.st-and.ac.uk/~history/HistTopics/Longitude2.html

> Then all I need to do is divide the length of a solar day, by the number of
> days in a year, and that's the difference between solar and sidereal days:
>
> day length / 365.25 = 0.00274 days
>
> or 0.0657 hours
> or 3.9425 minutes
> or more to the point, 3 minutes and 56.55 seconds.
>
> Taking this away gives me the sidereal day length of 23 hours, 56 minutes and
> 3.45 seconds (and yes, that means your 4 second figure is slightly off.)
>

> >http://hypertextbook.com/facts/1999/JennyChen.shtml
> >
> >Simply stated,there is only one correct figure for the correlation
> >between the rotation of the Earth through 360 degrees,if you
> >understood the principle of clocks,the Equation of Time correction
> >taken at noon and the relationship between geometry and astronomy,the
> >correct choice is 24 hours exactly.
>
> Um, the nature of earth's rotation and orbital period, is arbitrary. You're
> proposing they were chosen to provide a mathematical correspondence?
>
> The other way around is just numerology - it means diddly squat if that's the
> gist of the page about, which I couldn't get to load.
>
> Also, how does this relate to the Mars colony that we will one day build?

Don't worry about,if you are incapable of getting the Earth's rotation
rate correct and why clocks were developed to keep pace with axial
rotation via the Equation of Time correction,none of you are fit to
comment on the astronomical and geometric knowledge of our ancestors
much less appreceate it,either recent ((pre 1676) or in remote
antiquity.



Relevant Pages

  • Re: New book identifies Ireland as Atlantis
    ... >>development of accurate clocks to act as rulers of distance in solving ... day makes use of the Earth's axial rotation to the Sun and the noon ... based on the Equation of Time correction and shifted it to 23 hours 56 ...
    (sci.archaeology)
  • Re: Longitude and the Equation of Time
    ... new twist by the great Western astronomers when axial rotation was ... hours which is why the noon Equation of Time correction equalises the ... correct working principles which our ancestors set out and improve on ... Archaeologists who cannot even get the basic correlation at the core ...
    (sci.archaeology)
  • Re: Earth rotation
    ... >>the Earth's axial rotation as a seperate motion. ... This time including exchanges with the Sun, ...
    (sci.geo.geology)
  • Re: Earth rotation
    ... >>the Earth's axial rotation as a seperate motion. ... This time including exchanges with the Sun, ...
    (sci.astro)
  • Re: accruate "sundials"
    ... still,you are tying the Earth's axial rotation directly to external ... Equatorial bulge through differential rotation in the mantle by ... So,real astronomers have an utter horror of overheated linguistics and ...
    (sci.astro.amateur)

Loading