Re: Astronomers Vs Harrison (clock maker) ref Longitude problem


Charles Gilman wrote:
> Harrison's clocks rely on rotation@15°/hour relative to a frame of reference
> that is itself rotating@just under 1°/day. (That should clog up the address
> trawlers a bit!) The rotation net of FOR rotation is therefore indeed just
> under 15°/hour. I have not heard of Maskelyne, and therefore do not know the
> Maskelyne agenda.
>

Your introduction of a 'frame of reference' for clocks and axial
rotation is roughly the same miserable type of reasoning that Harrison
faced in his efforts to promote the clock method for resolving
longitude.The original poster of this thread should be aware that these
contrived and convoluted expressions are just that in contrast to the
clear principles which make clocks good longitude keepers at the rate
of 15 degrees per hour exactly .In this matter it is good to give
Harrison a voice -

"Now, in the former part of this book, I have treated about matters
pertaining to the strictness of measuring time; and have shewn the
deficiencies of such means as Mr. Graham had taken or made use of for
that purpose; and I have also treated of the improper, troublesome,
erroneous - tedious method, which the professors at Cambridge and
Oxford would have to be for the longitude at sea:"


" But indeed, had I continued under the hands of the rude
commissioners, this completion, or great accomplishment, neither
would, nor could, ever have been obtained; but however, providence
otherwise ordered the matter, and I can now boldly say, that if the
provision for the heat and cold could properly be in the balance
itself, as it is in the pendulum, the watch [or my longitude
time-keeper] would then perform to a few seconds in a year, yea, to
such perfection now are imaginary impossibilities conquered; so the
priests at Cambridge and Oxford, &c. may cease their pursuit in the
longitude affair, and as otherwise then to occupy their time."

John Harrison.


The sidereal value of 23 hours 56 min 04 sec and its justification
that you adhere to is little more than a cartoon but very much in line
with the astronomical fudges that 17th/18th century cataloguers
introduced to fix axial rotation to the celestial sphere directly.With
the internet,it is now easier than ever to expose the ridiculous
maneuvering that has you running for 'frames of reference' and other
linguistic garbage when the clarity of the original method for fixing
the pace of a clock to axial rotation is evident to all.

The wonderful thing about the noon Equation of Time correction which
fixes the pace of clocks to terrestial longitudes and axial rotation
is that it has its roots in pre-Copernican astronomy and Copernican
astronomy.The pre-Copernican astronomers give us the equable 24 hour
day from the natural unequal day by using the noon Equation of Time
correction and the early heliocentrists adapted this to the newly
discovered Copernican insight of indepedent axial rotation.

A location on Earth does Not rotate to face the Sun (otherwise known as
natural noon) every 24 hours hence the neccessity of the ancient
Equation of Time correction.The enjoyable reasoning behind the transfer
from the Equation of Time as a means to allow one equable 24 hour day
seamlessly elapse into the next 24 hour day (Monday-Tuesday-Wed...) to
constant axial rotation at 15 degrees per hour and 24 hours/360degrees
in total in that it equalise the actual cause of the natural inequality
- the orbital motion of the Earth and the varying speed in which it
travels in its annual path around the Sun.

The dumb cataloguers have a location on Earth rotate to face the Sun in
24 hours when no such thing occurs yet they need it to justify the
sidereal value of 23 hours 56 min 04 sec.Here is how the numbskulls
justify it mathematically and graphically.

http://www.pfm.howard.edu/astronomy/Chaisson/AT401/IMAGES/AACHCIR0.JPG

360 degrees = 24 hours
1 deg = 4 min
..986 deg = 3 min 56 sec

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


I would hope that the original poster would not be swayed by contrived
'frames of reference' garbage for indeed Flamsteed's erroneous 'proof'
for constant axial rotation and the astronomical fudge known as the
analemma has concealed the really exquisite transfer of pre-Copernican
astronomy to the heliocentric jewel of axial rotation at 24 hours/360
degress.These principles everyone will use today and for the rest of
their lives,even those tedious and miserable men who believe that the
value is an alternative one.

Tribunals and commissions are normally set up where gross misconduct
or incompetence are involved.I have done an audit on what happended and
why it snowballed into a monster.Should any of you consider the
opposition to Harrison and something shameful then it is no less
disgraceful that the final chapter of that story has still to be
written.The victims now are school children which you once
were,children who are taught that pretension and cunning maneuvering is
an attribute.





> "oriel36" <geraldkelleher@xxxxxxxxx> wrote in message
> news:1131229946.742434.88230@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > To Hayley
> >
> > You can ask these astronomers why they believe that the Earth rotates
> > through 360 degrees in 23 hours 56 min 04 sec when the principles which
> > supported Harrison's clocks rely on axial rotation at 15 degrees per
> > hour and 24 hours/360 degrees in total.
> >
> > http://hypertextbook.com/facts/1999/JennyChen.shtml
> >
> > You are addressing the descendents of Maskelyne and the celestial
> > cataloguers who made Harrison's life miserable and more importantly
> > Harrison knew their methods were poor

.

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