[geocentrism] Re: an aside.
- From: "philip madsen" <pma15027@xxxxxxxxxxxxxx>
- To: <geocentrism@xxxxxxxxxxxxx>
- Date: Fri, 22 Aug 2008 14:22:27 +1000
No .not saying that. . I do not have a sundial. Iam saying that the sun
reaches its Zenith (highest point) at the same time every day of the year..
This point of course moves further north and back to the south with the
seasons.. Not worried about that variation.. Just worried about it being
said that noon or the zenith is not always at the same time by 20 minutes.
Me thinks we is got a communication problem.. By the way glad to hear you is
still kicking.. Philip
----- Original Message -----
From: marc-veilleux@xxxxxxxxxxxx
To: Geocentric
Sent: Friday, August 22, 2008 12:18 PM
Subject: [geocentrism] Re: an aside.
Philip,
If I don't misinterpret you, you are saying that the noon on your Sundial is
always showing at the same time through out the year !!!
This would mean that all we can read on this subject in scientific
litterature is false. Why would they all lie about it ?
Marc V.
----- Original Message -----
From: philip madsen
Sent: 21 août 2008 01:08
To: geocentrism@xxxxxxxxxxxxx
Subject: [geocentrism] Re: an aside.
Marc said:
Philip,
The Sun doesn't take the same time to travel from noon to noon, the time
varies up to 30 seconds. Thats ok.. I can get that.
Furthermore, since the Sun is not always at the same distance from the
Earth and is moving north-south relative to the observer, there is a variation
of around 20 minutes from noon to noon on the sundial.
Marc V. THIS I DO NOT GET. IT AINT OK.. maybe I just never
could visualise 3D geometry or it being projected on to a 2D sundial.
But if the sun was getting to be 20 minutes late by my watch at mid day,
(adjusted for my longitude of course) I'd be very worried. That time is when
the shadow is shortest on the ground neath a vertical pole. At my longitude
thats 32 minutes before Standard time based on Melbourne.. So far it seems the
shadow is shortest right on cue through out the year. at 11.28am. and its
always pointing exactly due south.
Phil
----- Original Message -----
From: philip madsen
Sent: 20 août 2008 20:04
To: geocentrism@xxxxxxxxxxxxx
Subject: [geocentrism] Re: an aside
There is a Guided Tour talk on the subject of 'time' in GU 3.0
Neville.
If Gu is as clear as that then I will be none the wiser.. I know the
days are shorter.. but as the sun takes the exact same time to go from NOON to
NOON all the year round, how can it get to be 10 mins late some times???
Phil.
----- Original Message -----
From: Neville Jones
To: geocentrism@xxxxxxxxxxxxx
Sent: Thursday, August 21, 2008 7:35 AM
Subject: [geocentrism] Re: an aside.
Philip,
The Sun's rising and setting, and the length of time that it is above
the horizon, varies from day to day. Since wristwatches cannot be made to
reflect these variations and since we divide periods into equal increments (60
sec = 1 min, 60 min = 1 hr, 24 hrs = 1 day), it is actually the mean, or
average, taken over 12 months, that is used for watch and clock calibration.
In other words, to be more precise, 24 mean solar hours = 1 mean
solar day. We thus invent a 'mean Sun' that is constant in its imaginary
rotation, as well as the 'true Sun' that follows a helical locus.
There is a Guided Tour talk on the subject of 'time' in GU 30
Neville.
-----Original Message-----
From: pma15027@xxxxxxxxxxxxxx
Sent: Wed, 20 Aug 2008 11:50:29 +1000
To: geocentrism@xxxxxxxxxxxxx
Subject: [geocentrism] an aside.
live and learn or are they wrong.
Sundial site sayeth: In respect to true solar time, mean time
indicated by our wristwatches has a periodic variation that during the course
of a year can exceed a quarter of an hour.
Now Apart from the shadow of a vertical pole lengthening and
shortening with the seasons, I would have expected the shortest shadow of the
day, as being noon, and that this would occur at the same time relative to the
local time every day of the year. How can he talk of a 15 minute variation?
My simple answer is that this is as regards the dial calibration
method.
Why the trivia.. I am currently monitoring my solar panels and
need to know exact noon... and site interfered with my reasoning.
Phil.
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