1 year interval sequence runs through it
undisturbed, as happened at 2000.
Regards,
Andrew James
Secure Meters (UK) Ltd. is a registered company in England: 2199653
Secure House, Moorside Road, Winchester, SO23 7RX
This correspondence is confidential and solely for the intended recipient(s).
If
the month falls
more often on Friday in the 400 year period than on any other day of the week -
not a large bias, but one which doesn't go away! The 13th falls on Monday 685,
Tuesday 685, Wednesday 687, Thursday 684, Friday 688, Saturday 684, and Sunday
687 times.
Regards, Andrew
definitely that it's not "genuine" 1684, though my logic in that deduction may
be a bit tenuous?
Regards,
Andrew James
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Dennis Cowan
Sent: 21 January 2014 21:39
To: sundial@uni-k
d see
whether this is at all plausible. The "8" support looks too low down the dial
really, but it may be worth a calculation if only to rule it out!
Regards
Andrew James
Secure Meters (UK) Ltd. is a registered company in England: 2199653
Secure House, Moorside Road, Winchester,
shortage of
somewhere to read the time during these hours. Can anyone comment on
this?
Regards
Andrew James
Secure Meters (UK) Ltd. is a registered company in England: 2199653
Secure House, Moorside Road, Winchester, SO23 7RX
This correspondence is confidential and solely for the intende
er Neilson "found" it and presented it to the Pump Room.
Regards
Andrew James
This message has been scanned for viruses by MailControl
<http://www.mailcontrol.com/> .
Secure Meters (UK) Ltd. is a registered company in England: 2199653
Secure House, Moorside Road, W
have been adjusted
to civil time:
- and now it is adjusted to CET (UTC+1).
I suspect the convenience and motivation for keeping civil time is
mostly so that tourists know when to expect the automata to perform,
rather than because viewers will use it to set their watches.
Andrew James
Secure
ld seem to be a little more than twice the
proper size. If that's correct, this also indicates it is not a direct
image of a reflection, and may provide a further clue.
Andrew James
Secure Meters (UK) Ltd. is a registered company in England: 2199653
Secure House, Moorside Road, Winchester, SO23
Dear all
I thought the British Sundial Society web site was at
http://www.sundialsoc.org.uk/ - but it seems to have been hijacked to
sell lawnmowers and such like!
What is going on?
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44
co.uk/artanddesign/2009/oct/14/sam-lloyd-obituary
does not have this picture.
Does anyone know anything about this dial?
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44 (0) 1962 841046
www.pri.co.u
), making a rather confused appearance - I guess there would
probably in effect be a thickening of the double ends of the lines
compared with the middle?
Regards,
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44
annheim.de/mateo/camena/reus2/jpg/reus499.jpg
I don't know whether there is an earlier version of the same sentiment, which
he may have had in mind; perhaps someone can point to an instance from
Classical times, or cite an earlier author?
Andrew James
PRI Limited,
PRI House, Moorside
tions around the country with very accurately
known positions on which one could check this?
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44 (0) 1962 841046
www.pri.co.uk
PRI Limited is a company register
this correct?
Were there also - or are there still existing - old Chinese sundials
which show unequal daytime hours, or were equal hours the only time
shown?
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
19:14 repeated. The inaccuracy of
moondials becomes more apparent!
How often does one see this 14 day interval? How often does it vary even
more from the average? What are the extremes?
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel:
k (August 2007) it was no longer on display where I had
previously (at the BSS York conference) seen it in the vestibule, which had
been re-arranged, but had as I understood been taken into store. A pity -
though I think it can still be seen on application in advance to the gallery.
Regards
Andrew
ncorrectly laid out, so I
do wish you well in this endeavour. It still ended up having timekeeping
errors but it was possible to spread them around so that none were too
enormous.)
Andrew James
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Alison Shie
Peter,
You could of course buy a modern wrist-watch featuring equation of time
and using a similar 'kidney' cam ... Blancpain and Audemars and perhaps
others make them, but the Diallist's Companion is considerably cheaper!
Andrew James
-Original Message-
On Behalf Of P
the moving parts could
be subject to disagreement - in cases where many parts are made but
assembled into moving constructs (such as separately inserted teeth in a
wooden wheel, as in Eisinga's planetarium) do you count the assembly as
lots, or one?
Andrew James
___
(not that I know anything about them?)
Andrew James
51 04' N
1 17' W
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44 (0) 1962 841046
www.pri.co.uk
PRI Limited is a company registered in
?
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44 (0) 1962 841046
www.pri.co.uk
PRI Limited is a company registered in England and Wales with company number
2199653
The
See
http://makeashorterlink.com/?D30A6224D
for a short comment having this title in today's Daily Telegraph,
following the news of the All Souls' dial.
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
F
had great erudition
In the old sciatheric tradition,
And could judge his degrees
With the consummate ease
Of a natural geometrician!
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44 (0) 1962 8
ls for the month as
it is unambiguous and takes fewer characters.
Andrew James
-Original Message-
From: Douglas Bateman [mailto:[EMAIL PROTECTED]
Sent: 06 April 2006 11:45
To: Frank King
Cc: Sundial List
Subject: Re: Exact Time and date conventions
Many thanks to Frank and Andrew for comment
address. Bill, have you come across one made in South Africa?
I have seen one by him made (at 22 Renfrew Street Glasgow) for about 8
degrees North - probably Trincomalee. Not quite the Southern hemisphere,
but pretty close!
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hamps
t is also
said to be incorrectly set, but I can't vouch for that. Another picture
at http://www.wyenot.com/news/2005-01-18-3.htm may relate to its being
moved but again I'm not certain of its origin.
Andrew James
-Original Message-
From: Frank Evans [mailto:[EMAIL PROTECTED]
Sent:
en: 'Here (said he,) I had put a handsome
sun-dial, with this inscription, Eheu fugaces! which (speaking with a smile)
was sadly verified, for by the next morning my dial had been carried off.'
Andrew James
-Original Message-
From: Douglas Bateman [mailto:[EMAIL PROTECTED]
S
for a good view.
If you ground the weathervane, bear in mind that lightning conductors
should be substantial, avoid sharp bends, and go to a very good earth
indeed.
Andrew James
-Original Message-
From: John Carmichael [mailto:[EMAIL PROTECTED]
Sent: 19 March 2005 17:56
To: Sundial
ck, either.
Unless of course, following Mike Shaw's suggestion, horses were MUCH,
MUCH bigger at the start of the 19th century - or perhaps the then
Squire had a personal elephant with a really spectacular howdah? ;-)
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
Frank,
Have a look at BSS Bulletin 13(ii) and 13(iii) where I think Tony Belk
discusses the Weir diagram - he may also have written or talked about it
more recently if my memory serves me.
Andrew James
-Original Message-
From: Frank Evans [mailto:[EMAIL PROTECTED]
Sent: 03 February
to see it, on a beautifully sunny morning, I did not have
a camera with me, but perhaps that was just as well as I now learn ;-) .
Andrew James
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44 (0) 1962 841046
www.pri.co.uk
ne to be confused by it but at least you can recognise an
embellishment!
Andrew James
Roger Bailey wrote:
snip <>
snip <>
PRI Limited,
PRI House, Moorside Road
Winchester, Hampshire
SO23 7RX United Kingdom
Tel: +44 (0) 1962 840048
Fax: +44 (0) 1962 841046
www.pri.co.uk
I surmise even for a "one-off" because of the certainty of the lines
converging accurately to the same point for minimum effort in
positioning a straight edge. I have used a corner of something clamped
to the plate for the same purpose of locating a long ruler when drilling
was not a pre
more information please?
Regards
Andrew James
N 51 04
W 01 18
This correspondence is confidential and is solely for the intended
recipient(s).
If you are not the intended recipient, you must not use, disclose, copy,
distribute or retain this message or any part of it.
If you are not the
(compare this with vertical dials which are often "public" to some
extent).
I feel that Arabic numerals were much more widely used for clock and
watch dials on the Continent. In England my impression is that Arabic
numerals do seem to be more common on sundials than on clocks. Perhaps
list first (Or did
you??) ;-)
Regards
Andrew James
This correspondence is confidential and is solely for the intended
recipient(s).
If you are not the intended recipient, you must not use, disclose, copy,
distribute or retain this message or any part of it.
If you are not the intended recipien
n. (Of course many safety laws are very beneficial, but I
could cite lots of idiotic cases - not on-list, though!)
Regards
Andrew James
This correspondence is confidential and is solely for the intended
recipient(s).
If you are not the intended recipient, you must not use, disclose, copy,
There is I believe a mosaic analemmatic dial at a school in South London
but I don't have details, though I may be able to find some out.
Regards
Andrew James
-Original Message-
From: John Carmichael [mailto:[EMAIL PROTECTED]
Sent: 11 February 2004 13:45
To: sundial@rrz.uni-koe
in
that and the resulting change in the length of a degree of latitude!
Regards
Andrew James
-Original Message-
From: J.Tallman [mailto:[EMAIL PROTECTED]
Sent: 03 February 2004 15:58
To: sundial@rrz.uni-koeln.de
Subject: Re: Oblate Spheroid correction for computing distances?
Hello
x27;s flat. This isn't my own idea but I can't remember
whose it was - so I offer apologies and credit wherever it is due.
Regards
Andrew James
51 04' N 1 18' W
-Original Message-
From: Frans W. Maes [mailto:[EMAIL PROTECTED]
Sent: 01 December 2003 11:34
To: sundial
ly on various MW stations around 720-774 and 1485 kHz as well as FM
in the 92-95 MHz band. As far as I know it's not on the 5975 kHz
frequency (which is BBC World Service in Central America and possibly
other things).
Andrew James
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
ntury. Does anyone have any more information or precise dating on
this dial, which is now probably in the Hermitage, St Petersburg?
I can send a JPEG of the illustration on request off-list.
Regards
Andrew James
51 04 N
01 18 W
-
unately it doesn't have a dial outside any more, though there
presumably once was one; but there is a curious large square copper dial,
apparently not that old, hanging on the wall in the bar. I couldn't decide
quite what it was meant to be - anyone passing there?
Regards
Andrew James
?
Regards
Andrew James
-
produce a complication - and why not use it to protect the gnomon as
well as the glass?
Regards
Andrew James
-
on the inside and outside of the glass? The diagram shows the centre as
outside, but if the paint is inside surely the gnomon root should pass
through the dial centre on the inside surface, allowing also for
refraction?
Regards
Andrew James
-
ms too. The 12 o'clock
numeral
is where it should be for a direct south wall, but the 6 am and 6 pms
don't line up with the center. Andrew James was there last week.
Andrew, do you remember if this is a south wall? >
Actually the Bucklebury dial is in a North wall or window :-) .
_Glass/sundials.html
as dials 19 and 8.
Perhaps others who have a "fly" dial not too far away can see how
common, or universal, this technique is?
Regards
Andrew James
51 04 N
01 18 W
-
with a mighty
blow, then tried again with the even larger hammer towards which Babbage
had "involuntarily" reached ...
I only tried it once, many years ago, and without success! Practice, and
probably best of all a demonstration, might help. Has anyone else heard
of or tried this?
Andrew James
01 18 W
51 04 N
-
om Michael Hickman. I have the Excel spreadsheet if
anyone is interested.
Regards
Andrew James
51 04 N
01 18 W
-Original Message-
From: Roger Bailey [mailto:[EMAIL PROTECTED]
Sent: 01 July 2003 16:31
To: sundial@rrz.uni-koeln.de
Cc: [EMAIL PROTECTED]
Subject: RE: Fw: Shepherd's Dial
e latitude and longitude
relative to Palermo marked as well.
Is this on your list, Gianni?
Regards
Andrew James
-Original Message-
From: Anselmo Pérez Serrada [mailto:[EMAIL PROTECTED]
Sent: 19 March 2003 17:43
To: sundial@rrz.uni-koeln.de
Subject: On Meridian dials
Dear dialists,
so seen through La Defense (more than twice the
size, so perhaps from over 2 km away)?
Regards
Andrew James
N 51 04 W 01 17
-
s for the last 2000 years.
Andrew James
N 51 04' W 01 18'
On 27 September 2002 09:38 Peter Tandy wrote
that presupposes that the Apollo astronauts actually did go to the
moon. A recent TV programme here in the UK showed what seemed, on the face
of it, compelling evidence of strange irr
It should I think be www.dasypodius.com
AJ
-Original Message-
From: Alexei Pace [mailto:[EMAIL PROTECTED]
Sent: 08 August 2002 11:42
To: sundial@rrz.uni-koeln.de
Subject: Re: new dial link, a big work !
The link doesn't work here...
AP
>www.dasyposius.com
-
-
and a major one like that is just the sort of thing that goes
unnoticed until afterwards!
Andrew James
N 51 04' W 01 18'
-Original Message-
From: Frank Evans [mailto:[EMAIL PROTECTED]
Sent: 05 August 2002 14:45
In one of the four photos I took I have now
been able to see
ed technology!
Andrew James
N 51 04' W 01 18'
-Original Message-
From: Brooke Clarke [mailto:[EMAIL PROTECTED]
Sent: 31 July 2002 17:03
To: sundial@rrz.uni-koeln.de
Subject: Re: Heliochronometer by Homan
All US patents are on line.
Sources for free on line TIF viewers can be
this device or
its maker?
Andrew James
N 51 04' W 01 18'
-
l) but it beats most other things - but wasn't there once a (now
non-existent?) "mountain dial" with markers on the hillside somewhere?
However the "volume" definition of size is a very good one for eliminating a
noon mark!
Andrew James
N 51 04' W 01 18'
-
Tony
Yes please for some pdfs when you are sending them out (I didn't seem to get
your offer of some weeks ago?) - I am down to give a member's short talk to
the Southern Section of Antiquarian Horological Soc in September and might
find some of your images useful there, especially of the multipl
a straight line, and
the shadow crossing that line is a notification of the Sun's rising or
setting either that number of hours ago or in that number of hours time in
the other place. Perhaps others may find this a helpful idea?
Andrew James
N 51 04' W 01 18'
-Origina
uch by the
varying distance from the Sun.
Andrew James
-Original Message-
From: Willy Leenders [mailto:[EMAIL PROTECTED]
Sent: 26 March 2002 11:04
To: sundial@rrz.uni-koeln.de
Subject: Re: difference between equinoxes and midsummer
Thank you Piero and John.
But after your answers my probl
This "warning message" is a widespread HOAX and is meant to damage your
machine by leading you to believe that a Windows System file is a dormant
virus.
PLEASE DO NOT ACT UPON IT and do not email it to anyone.
SULFNBK.EXE is a system file, please do not delete it.
Andrew James
>
t it appears almost as a line so the enlargement is almost purely
horizontal, and at intermediate altitudes the vertical enlargement of the
circle is less than the horizontal. (The elliptical appearance of the
mirror varies slightly as you move up and down the image of the sun, hence I
write "a
t we're getting close to
terrestrial origami I fear ...
Regards
Andrew James
51 04 W
01 18 N
noted dates a few days either side of the solstice.
Andrew James
south facing wall would be erected a sundial. >>
P.S. Did he steal all those dials later, or did they just go when the
buildings were rotated ?
Andrew James
> -Original Message-
> From: Tony Moss [mailto:[EMAIL PROTECTED]
> Sent: 13 December 2001 11:45
> To: Sundial
I was fascinated by the use of "gum metal" - are you familiar with it, Tony?
and the
interesting statement <> But perhaps it's a live transcript?
Andrew James
ts top will appear bigger as it's
nearer the camera), whereas correcting perspective of a photo taken from the
side appears to fold the gnomon down away from you. When I try this
overhead method with a film camera I often wait days or weeks to receive a
skewed blurry print of half a dial or one of my own feet.
Andrew James
That gives a massive 0.7 : 1 linear distortion (which as you
say can be restored digitally) - but the gnomon's odd shape cannot.
Horizontal dials on a high plinth aren't so easy, though ...
Andrew James
ped rather than straight
diagonals.
In my experience these are less common than diagonal scales (nonius), but
perhaps sometimes are not noticed, particularly on a corroded dial.
Andrew James
save power, needing only 30 instead of 78 blows every 12 hours;
useful if you are making a clock to go for a long time between windings -
three months for some of Knibb's. The Great Clock of Westminster, with its
famous IV, needs rather more power to drive it and to sound Big Ben, but at
least there is further for the weights to drop (and to be wound up every few
days)!
Andrew James
N 51 04
W 01 18
u can find someone skilled to show you the angles of
the graver and how they work.
Andrew James
http://www.apro.fr/usr/ymasse/anmn2.htm
Andrew James
Ron Anthony [EMAIL PROTECTED] wrote:
Here is my explanation of what he was saying.
1. Set up an armillary dial with a horizontal surface under it.
2. Pick a point (O) on the equatorial ring, say OPPOSITE from the 10 am
hour mark. This point i
uot;figure eight" analemmas on the hour lines, I think the
answer is "no" as what is wanted must affect all the hour lines
equally, which could be achieved by a rotation of the dial
about the gnomon axis, and I believe no displacement of the
gnomon will achieve this. I'm open to co
des with lower solar altitude, as it will become nearer to the normal
hole anyway. But it's not obvious to me that the vertical hole will
generally produce a much less readable spot than the normal one. Can anyone
comment on that?
Regards
Andrew James
cify position on the Earth by longitude
and latitude; surely, he was a very smart fellow indeed.
Andrew James
marked as
such is unusual.
I think that it may have been felt that with the minutes being numbered 5,
10, 15 ... it would look odd to have the dates numbered 6, 11, 16 ... (as
well as being something different to engrave or paint!) and then the 31
arose as a reminder that 1 was to be found next to i
you held * taut
*_
/I -_
/ I -_
x I y
\ I _-
\I _-
*-
like a kite shape
You see that the line I I I I between the * and * is at right angles to the
line x--y
Regards
Andrew James
han time measurement as Mike listed. Perhaps I'll go again in the
next six weeks ...
Andrew James
N 51 04
W 01 18
when you use
subtractive as well as additive combinations, there is scope for confusion.
Andrew James
N 51 04 23
W 1 17 46
rew's Cross X; and at
Dorstone near Hay-On-Wye, Hereford, there is an interesting double sided
equatorial dial dated 1823 (from memory) with what looks like a fleur-de-lys
for summer noon though it is in somewhat rusty cast iron and I'm not
absolutely sure how to interpret it.
Andrew James
N 5
s in Guildhall together with
another clock movement.
Apologies that all this is a bit off sundials but the Longitude film and
story IS very interesting!
Andrew James
focuses a
bright spot (the intersection of a bright line with the equatorial plane)
onto the scale. It only works in summer because it's an upper surface
equatorial! It would work with solid plastic or glass but I expect that it
is made like that because liquid filled is cheaper ...
Andrew James
itrary but
derive from the relationships of the phases (as they relate to our calendar)
and the amplitudes of the two contributing components of its cause, the
orbital eccentricity and the inclination.
Andrew James
01 18 W
51 04 N
Patrick Powers writes:
>It is SRNO 4117 and Carolyn Martin and (I think)
>Andrew James did some research. Dial is from St Mary's Alverstoke, Hants
Yes, it was I who did some research on it. I visited the Hampshire Records
Office and examined microfilm of the Alverstoke Churchwarden
m the inner. Then balancing the appearance
of the outer rays should give a rather more accurate estimation of the angle
of the centre of the solar disc.Any takers?
Regards
Andrew James
shadows (on the
two sides) by an amount depending on the width/pitch ratio, and if that *is*
so then if both sides are graduated (the dark/light moves along one as the
light/dark moves along the other) their average might be correct. Would
anyone else like to comment?
Andrew James
N 51 04 W 01 18
>
quite likely after all - with the proviso that one
might have misunderstood both stories as Napoleon I without knowledge of the
dates. Any historians able to confirm which Napoleon, or the story or
dates?
Regards
Andrew James
Winchester, England
> -Original Message-
> From: Arthur Ca
between the Equator and the Tropic, (and hence for
Fernando's actual problem ;-) ) I'll now leave it to others to discuss the
possible range of angles of a single inclining vertical dial, or between the
pair of vertical dials required.
Regards
Andrew James
now whether this is helpful or
the reverse ... let alone accurate or precise ;-)
Regards
Andrew James
a sundial,
aren't they! ?
Regards
Andrew James
ompany!
>
> Regards
> Andrew James
reading if you're interested in the metal working
/ wood working crafts in general, and a long vanished perspective on a
lot of the processes and materials, with some extraordinary examples of
skill and labour illustrated in the ornamental turning volumes.
Regards
Andrew James
> -Original M
time, but this would need the measurement or marking of an
angle, which simply reading the time would avoid.
Andrew James
actual quotation from one of the usual
> Classical sources, but an assembly of words especially written. This
> might be more likely therefore to have a grammatical or typographical
> error introduced by a fallible author.
>
> I expect that someone will now cite an impeccable source!
>
> Regards
> Andrew James
>
>
>
heavy end up?
Andrew James
> -Original Message-
> From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]
> Sent: 24 November 1998 12:47
> To: sundial@rrz.uni-koeln.de
> Subject: Stone Carving
>
> Be aware that granite will last longer than marble once it is placed
> outside.
>
>
ls of when it was introduced, some time during the
1790's. It was dropped after a few years because of its overwhelming
unpopularity. :-)
A few clocks remain; are there any such sundials?
Andrew James
>>>
> How long is a Swatch beat? In short we have divided up the virtu
I always liked a "definition" of time - I'm afraid I forget whose -
which doesn't seem to have been given here.
It's something along the lines of
"Time is the imperceptible, irresistible, and irreversible flow of the
future through the present into the past"
Regards
Andrew James
ome leading watch brands today.
I'm afraid if this is a crude sundial it does sound like a fake,
although who knows without seeing it?
Pearson Page made all sorts of things - the water clocks are
particularly notorious!
Andrew James
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