Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die
eigentliche Nachricht steht dadurch in einem Anhang.
This message was wrapped to be DMARC compliant. The actual message
text is therefore in an attachment.--- Begin Message ---
Plaza de America.
help.
Patrick Powers---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Hello
Not sure about doing this with only one sundial but you can (apparently) with
two.
See SunInfo (www.bit.ly/suninfo) look down the middle column to eight entries
down for a light blue box entitled “Using two sundials to destroy the idea of a
flat earth!!”
Patrick
From: Dan-George
Hi
I know of this which refers to him introducing the custom of ringing at
Canonical hours and at the Eucharist – is this perhaps what you wanted? Sorry
I do not have the actual text.
--
Re Pope Sabinian
See: https://www.revolvy.com/page/Pope-Sabinian
Under ‘Biography’
The history is well summarised here
http://www.bbc.com/future/story/20160310-the-builder-who-changed-how-the-world-keeps-time
From: Douglas Bateman via sundial
Sent: Friday, August 31, 2018 4:40 PM
To: Frank King
Cc: Sundial list
Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu
Might anyone on the list have information of a dial, the engraved base of which
can be seen in the formal gardens of the Victoria Falls Hotel, Zimbabwe at
17.93 S, 25.84 E. The hotel itself appears to know nothing.
The base is signed Casella London and a company of that name is still in
Following Frank’s teaser about circular-section gnomons there are of course
many other gnomons of varying cross sections to be seen. Those of rectangular
section on vertical dials have always interested me since it can often be
difficult to know where in the shadow the time should be measured
today. My sincere apologies
to Frans!
Patrick
From: Patrick Powers
Sent: Sunday, October 22, 2017 12:40 PM
To: Brad Thayer ; sundial@uni-koeln.de
Subject: Re: Hemicyclium correction
Hi Brad
Further to your interest in an hemicyclium you might like to know of this link
to the former webpages
Hi Brad
Further to your interest in an hemicyclium you might like to know of this link
to the former webpages of the late Frans Maes who set out his instructions for
“Construction of Hemispherium” some time ago and which is based on several
earlier documents – all referenced. You might find
Hello to all those interested in the currently defunct Great Circle software.
I have managed to make contact with the designer of the Great Circle Studio
Solar Calculator and mentioned that it does not seem to work. His reply
tonight tonight is:
-
Hi Patrick,
Thank you for your e-mail. I'm
I believe that Great Circle is indeed no longer available. It disappeared once
before only to return some time later so maybe there is some hope?
In the meantime there is another, broadly similar resource which is at
http://midcdmz.nrel.gov/solpos/spa.html
Anybody know others?
Patrick
From:
Hi John,
Answer is I don’t know but it seems from the link below that all the different
varieties of box known at the time in Roman times were abundant.
If you can put up with the use of CE and BCE, see:
https://www.ebts.org/2013/12/boxwood-in-roman-times-by-mark-v-braimbridge/
I expect that
Hi Willy,
Here is another example of the reason why surrounding a dial with vertical,
numbered, hour posts is not always a good thing!
Patrick---
https://lists.uni-koeln.de/mailman/listinfo/sundial
? and why were
the declination lines not restored too?, all come to mind.
Patrick Powers
---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Hi Geoff,
Your most interesting ‘penumbral’ comment also raises another possibility that
this could be a tad more interesting if we can believe a ‘throw away’, and not
fully explained, comment about the monument which suggests a question that
there might be still more to the design than we
John,
There is also this that describes (a little) the thinking that was behind the
way they attempted to accommodate the small changes that still occur year to
year.
http://www.onlineatanthem.com/news/memorial-science
Patrick
From: John Goodman
Sent: Thursday, January 19, 2017 5:01 PM
To:
Hi, I have an Excel (Windows) one that is based on Smart’s formulae as
reported by Jan Meuss. This is simpler (!) than Meuss’s ‘better’ one but
nevertheless it is accurate to a maximum of 4 secs and usually to within 1 sec.
The spreadsheet calculates all leap year days every year but in
Hi John,
Would you include Nomography in such a study?
After all nomograms might (just) be considered as mechanical devices
Patrick
From: John Pickard
Sent: Wednesday, September 07, 2016 1:14 AM
To: Sundial List
Subject: Using linkages to draw curves on sundials
Good morning,
While
Hi Nicola
Your comment regarding the placement of armillary dials too high to be read is
very interesting. I am sure that you are correct.
This practice continues (nearly) to the present day. We have a few ‘dials’
like that in Britain and it does indeed seem sometimes to have been the
Hi
That’s really interesting Dan. I do not know of any dial in Britain/Ireland
having Greek numerals for time indication. However, I am aware of Greek being
used on something like 20+ British dials but all but one of those only use
Greek for their mottoes. The one exception still does not
Hi,
It sounds an interesting project.
If you must use wood, don’t use exterior grade ply. Exterior grade ply
specifications relate mainly (possibly only) to the glue that is used; not to
the way they might survive in an exterior environment.
Marine grade ply is much better – the more so if
Hi Robert,
Indeed it is still using the sun!
It’s also interesting for those of us in the UK to compare the flowers quoted
in this article with those suggested for a similar purpose in some nineteenth
century European gardens. There is a problem with latitude of course but an
interesting
be the best option!
Regards
Patrick
From: Kevin Karney
Sent: Thursday, June 12, 2014 6:12 PM
To: Sundial
Subject: CORRECTIONS Extensions to A few new Tables for the Gnomonist...
Dear Friends
Thanks for the positive comments!
And thanks to Gianni Ferrari, Patrick Powers, Edward French and Jack
Hi Ian,
Exactly so, and it would be interesting to see what dials there were on such a
whole number list. But the snag in all this though is that the definitions
have all been changed. The arrival of satellite technology brought with it a
global redefinition of the whole earth's ellipsoid and
that was designed
for the dial by Christopher Daniel. The same picture may be seen in
Christopher’s Collection at http://bit.ly/cstjhdaniel.
Patrick Powers
From: Gianni Ferrari
Sent: Saturday, January 25, 2014 12:09 PM
To: Thibaud Taudin Chabot ; Len Berggren
Cc: LISTA INGLESE
Subject: Re
That is excellent. Much more believable than the shadow hypothesis (to me
anyway) and in keeping with what a number of others say about the ‘operation’
of many Megalithic structures too.
Thanks for that
Patrick
From: Gianni Ferrari
Sent: Saturday, December 21, 2013 9:17 AM
To: LISTA INGLESE
Hello John,
A bit of a side aspect to your query but the same Mr Buck was previously Vicar
at Kirkby Malzeard and this dial seems to be from there.
See: http://digital.library.upenn.edu/women/gatty/sundials/241.html which has,
at entry #316, this text:
316.FLOREAT ECCLESIA. May the
that the Collection forms a
remarkable study of the life and times of a remarkable man.
Patrick Powers---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Hi
I think you should avoid suggestions that one business approach might be best
or faulted when taken across all of business. The fact is that every system
has faults but the ‘best’ has always to be the one where any faults can be
identified and fixed and where the fraudulent practitioners
Dear Darek and John
There is also Maxstoke Castle in the West Midlands (not often open to the
public) where as I was told the horizontal dial on the front lawn was used to
regulate the tower clock in the northernmost gatehouse tower.
Ordinary domestic clock regulation by sundials was of course
Kriegler
Sent: Sunday, May 13, 2012 12:39 PM
To: Sundial Mailingliste
Subject: sundials and tower clocks
Dear Patrick Powers,
I also know such simple sundials to control the mechanical clocks in Spain
(reported by Antonio Cañones) and in Italy (reported by Renzo Righi).
In 2005 I have
Here’s one to start with
http://itunes.apple.com/gb/app/goskywatch-planetarium-astronomy/id284980812?mt=8
It does need to be able to determine your location so make sure GPS is turned
on or you may think it’s useless!
From: Douglas Bateman
Sent: Monday, January 16, 2012 4:58 PM
To: sundial
://www.cacr.caltech.edu/futureofutc/preprints/18_AAS_11-668_Epilogue.pdf
Numerous contributors familiar to readers of
this mailing list sent in comments including:
Tony Finch
Rob Seaman
Patrick Powers
Frank King
John Davis
Hi Mac,
There was this from John Carmichael to this list in 2007. It has several on
the same theme though I don’t think the actual one you mention.
http://www.mail-archive.com/sundial@uni-koeln.de/msg13231.html
Patrick
From: Mac Oglesby
Sent: Saturday, November 12, 2011 1:39 AM
To: Sundial
of this BBC 'ban'...
--
Barry
On 5 Oct 2011, at 21:22, Patrick Powers wrote:
John was correct to mention this and the matter is gathering pace. See this
from a UK broadsheet that even sees a recent Archbishop of Canterbury and now
the Vatican as well as established BBC presenters up in arms
John was correct to mention this and the matter is gathering pace. See this
from a UK broadsheet that even sees a recent Archbishop of Canterbury and now
the Vatican as well as established BBC presenters up in arms.
Hi Donald
I cannot help you with an article on that specific topic but there is a dial at
Queens’ College Cambridge which has at its bottom a table of corrections to be
used to tell time by the moon. An article published by the University
(courtesy Drs Robin Walker and Frank King) is at
Hi Donald
I cannot help you with an article on that specific topic but there is a dial at
Queens’ College Cambridge which has at its bottom a table of corrections to be
used to tell time by the moon. An article published by the University
(courtesy Drs Robin Walker and Frank King) is at
Hi Steve:
I don’t think there is a specific command to do that in Excel (don’t know about
Open Office) but I understand you can do it in Excel by using VBA. Have a look
at this page:
http://peltiertech.com/Excel/Charts/SquareGrid.html
Incidentally this Jon Peltier site has a wealth of other
Thank you Fred for alerting us all to this excellent idea.
I for one would very much applaud the idea of a moving shadow memorial for
those so tragically lost in NY during 9/11. However, as with so many matters
connected with dialling we should not be surprised to know that there are
Setting aside the matter of Educational Authorities who cannot think (!), I
also agree that you might like to give this another go in order to allow the
Authority to think again.
There is another type of dial you might try on them – one that can also be
painted on the ground and where the
Hello Martina,
Setting aside the matter of Educational Authorities who cannot think (!), I
also agree that you might like to give this another go in order to allow the
Authority to think again.
There is another type of dial you might try on them – one that can also be
painted on the ground
Well said. Not only that but the sun wobbles too with its barycentre currently
outside the sun’s disc. Whilst the Earth-Moon system isn’t the major
contributor to the overall wobble of the sun it’s one of the most complicated.
I like the link at
Hi Brent,
The BSS Register has many ‘non-dials’ on its books. Some (though few) have
other dialling interest. We used to record all except the most flagrantly
erroneous one so that we could use the data for research but now are moving
away from that because there are so many ‘garden-centre
Well, just doing a simple count of those who title themselves Mrs, Miss and Ms
(That is to say ignoring those ladies who title themselves Dr and Prof, Rev
etc) in the BSS Members list of a few months ago we have 46. That’s about 10%
of the membership.
on the BSS website.
Have your camera with you this summer and let us have details of your
trails...
Patrick Powers Piers Nicholson
For and on behalf of BSS Internetworks Ltd, who are the webmasters of
www.sundials.co.uk
---
https://lists.uni-koeln.de
Hi Tony,
Until it has to be moved (as a result of the imminent demise of Compuserve
at the end of June 2009!) you should be able to see 2009 figures via your
Browser at
http://ourworld.compuserve.com/homepages/patrick_powers/EoT.htm
I shall put them on a new hosting site soon. I also have an
have a request from Jürgen Giesen - who wrote the NASS Current Solar Data
Java applet.
He is seeking information about the Baldwin Solar chart.
There is also this PDF of an article that mentions the Baldwin Solar Chart
and a simplification of it. Might it be of interest?
Patrick
...However, there is one dial for which I have attached a picture (32kb)
which was found at Housteads Fort on Hadrian's Wall and
which was undoubtedly not imported
Hi Frank, Your dial might be the one I saw in a museum along Hadrian's Wall
all those years ago - it certainly was of that form
Alex wrote: !While on a search for something else, I began noticing that
values for the declination of the sun seem to vary a great deal
In using a date of September 1st you are in a period of the year when the
declination of the sun is changing by about 21 or 22 arcminutes per day so
the time
The dial SRN0818 referred to by Patrick Powers as being a Roman dial at
the famous Vindolanda Roman site at Bardon Mill, Cumbria, close to
Hadrian's Wall, is not a Roman dial but a more recent conventional garden
dial.
Frank is right! The one recorded by BSS as being near to or in Vindolanda
The photo caption says that it is a sundial located in the atrium in the
National Acaedmies building (in Washington).
Interesting though it doesn't seem to be a 'real' sundial, John. To me it
seems to be more of a coloured light show that changes as the sun tracks
across the sky. There is a
Can anyone tell me which is thought to be the earliest UK sundial? David
Brown Somerton, Somerset, UK
There are a number of Saxon dials in the UK (circa 50?) though of those
the Bewcastle Cross dial might well be the earliest. However there is a
Roman dial at the Hadrian's Wall fort of
If you are short of ideas for presents at Christmas time either for
yourself or for a friend interested in dialling why not consider supporting
one of the many Sundial Societies around the world by taking out - or
getting another to give you - membership of one?
Most societies have a web site
The Leap second is back - evidently the current administration's proposal
to eliminate them has not been adopted.
Excellent news indeed for diallists and lovers of solar time but isn't it
rather sad that the link that reported this good news gets its facts wrong
- like so many others you can see
Thanks to all who have sent in observations on the device my son alerted me
to and which I showed at
http://tinyurl.com/5gnqz6
I have been away for a week and only just got back. Apologies therefore
for this late acknowledgement to all who responded.
The device is, as several suggested,
There is an unusual East Declining Vertical Dial on the side of the
Cathedral (Catedral de Santa María de la Sede) in Seville (Sevilla) in
Spain.
It has a gnomon which is 'folded' from the Noon line rather than being
placed orthogonal to the dial plate along the sub-style line as is more
I'm forwarding this for Roger Bourke. I know the question has come up
before. Perhaps a listmember who is familiar with Macs can respond to
him offline. Thanks.
I'm responding to Roger off line as suggested but perhaps others with Macs
( I do not have one) might be able to run the general
Can anyone throw light on the interesting device to be found at
http://tinyurl.com/5gnqz6
It appears to be a genuine scientific instrument made by Smith Beck 6
Coleman St. London
I am told that this company changed its name to Smith in about 1850.
Size = 145mm X 120
It folds in two places it
We might be being a little unfair to Microsoft by assuming that the
oddities with equations are 'all their fault'. The following Wikipedia
article gives quite a good explanation of the problem and the companies
involved.
http://en.wikipedia.org/wiki/Equation_Editor
Hi Mac,
Some stainless steels (the cheaper ones) do corrode slowly on their surface
over time, where the surface is slightly pitted and especially in
conditions where they are subject to choloride action - as near to the sea.
This effect is called tea staining and there is an article about it at
Mac Oglesby asked how one might begin to calculate the statistics for
Easter as recently indicated by Frank.
Now, I always thought that the algorithm which applies to any year since
the introduction of the Gregorian Calendar, and which in Britain was in
September 1752 is as given below.
For
In 1917 Dom Ethelbert Horne did a survey of scratch dials ('Primitive
Sundials or Scratch Dials') in Somerset and published a book on his
findings.. I understand (from my 1929, second edition) that that the second
half of that first edition consisted of a list of all the Somerset
churches having
J Tallman wrote: Yesterday evening I was driving south on the interstate
and saw a fabulous sunset where the sun was incredibly magnified...even
before it got right down on the horizon. There were thin clouds that cut
the light enough for me to observe the disk, and it sure did look wide. How
Of course, once I saw the TimeSpace at that site, I had to go look for it
in GoogleEarth!
Of course (!) - and you can even see the Roman numerals - it's so big.!
However this dial also has a digital clock associated with it and the
numerals you can see on Google Earth relate to the digital clock
Are you familiar with the city?
Not very, though my parents lived in Ryde on the Isle of Wight (IOW) for
some years - that's the the roughly-rhombus shaped island off the south
coast of England - and Ryde is just about directly opposite to Gosport.
However when I had connexions with the IOW,
Shadow shortening is unavoidable. So what's your solution?
Depending on the design you might be able to fit two false nodi either
side of where the true nodus position is. That way Joe Public simply
judges the mid point - rather in the same way as he does when telling the
time by judging the
That looks great using GE. When I diplay the raster in GE I get the
impression that the whole dial is slightly turned to the East. Is that
correct or is it an effect in GE? Thibaud
Interesting you noticed that - I did too - slightly to my consternation at
the time!. I first saw it when I moved
When I did this with the big dial I first set out a parallel noon gap near
the plate edge expecting the shadow to fill this at noon!! It was only
when I came to observe this in sunlight that I found the apparent shadow
was less than 10 wide because of the umbra/penumbra effect. The shadow
was
If you make the dial with a tublular gnomon, and you design the face so
that the time is read from the center of the shadow instead of the edges of
the gnomon's shadow, then you eliminate the Noon Gap. Do you think this is
the best solution?
From the point of view of an accurate dial, one that
What's around the edges? It looks like slabs of vertical stones in the
chapter ring and it looks like they are arranged
with different orientations, judging by their shadows.(almost like a planar
dial). Why? Do you have a close up photo I can see?
They are rough hewn stone blocks - donated for
One thing, though, should I have written BCE instead of BC?
Most certainly not.
It is however yet another quite splendid example of modern muddled thinking
to add to the ever growing list of such things connected with political
incorrectness! It is the more so in this case because of the
Members of the list might be interested to hear of a new Noon mark in
Leicestershire UK. Go to:
http://tinyurl.com/22t6x3
And No, it has not yet been recorded for the BSS Register!
Patrick
---
https://lists.uni-koeln.de/mailman/listinfo/sundial
John Carmichael wrote:
While researching wall sundials, I have come across a few sundials
that seem to be made of sculpted 3 dimensional plaster that is
attached to walls. Often the plaster looks like it’s painted.
Hi John.
The dials you show are (I think) not ones from or in the UK and so
Frank King wrote:
Incidentally, I am amazed that there are as few as 16 dials
recorded with appreciable cant.
Hi Frank,
We actually know (currently) of 326 canted dials. The number 16
referred to the number of dials designed as declining dials but which
are also canted.
Is the dial on
John Foad wrote:
The churchwarden of St Mary's, John Chitson, confirmed to me today that the
dial was indeed originally mounted on the nearby chapel. When it was moved
to the new church, it was almost certainly canted to bring it to the
declination of the original wall.
The Hawkshead
John Carmichael wrote:
That comment made by Frank saying that people assume walls to be vertical
made me laugh because I remembered this building across from our hotel in
Lavenham in Suffolk.
LOL! Yes, there are a few buildings in the UK where modern building
practice is completely absent
Frank Evans wrote:
He [Keith Scobie-Youngs] unfortunately had no information or theory on
what the PL Long [Now known to be PI Long] meant, nor indeed as to
why the dial is canted to no apparently significant declination!
On the matter of the dial being designed as a declining dial yet also
Message text written by Patrick Powers
I shall ask Chris Daniel (who is not a member of this list as far as I
know) about what he thinks the finish was on St Margaret's.
Well, I did ask Chris Daniel about the St Margaret of Antioch dials and he
confirms that they were stove-enamelled - like my
Message text written by Tony Moss
What do we know about Ferguson?
James Ferguson (1710 1776)
James Ferguson was born in the parish of Rothiemay,
in Banffshire, the son of a peasant farmer. Its an
interesting comment on the value that we in the NE
have placed on education over the centuries
Message text written by Frank King
John Carmichael explained that the biggest oven that his suppliers use
will accommodate a maximum size dial of 46 square.
The Margaret of Antioch dials are over twice that size. I wonder whether
Brookbrae could still do
a job that big. If so, they may have a
Message text written by John Carmichael
Porcelain is a vitreous enamel which means that it is composed of glass
frit (fine dust sized particles of glass). It requires HIGH firing
temperatures of about 1500 degrees F. and kiln-type ovens. But the enamel
and powder coatings used on car parts or
Message text written by John Carmichael
This fits in real well with the BSS conference
John:
Not only that but there is also a direct (ie no changes) rail link from
Cambridge to Stamford at hourly intervals most days and the journey only
takes just over an hour. Mind you, although the train link
Message text written by John Carmichael
According to a recent article in The Wall Street Journal, there is a new
132
ft. sundial in the new Garden of Surprises at Burghley House in Stamford
England.
Burghley is indeed one of the largest and grandest houses of the first
Elizabethan Age. Built and
Message text written by John Carmichael
Has anybody seen this dial yet?
In my enthusiasm for the equestrian facilities at Burghley g I forgot to
say thatorgot to add that the dial was recently mentioned ina local paper.
It has been designed by a former curator at Harvard USA.
The article I saw
Message text written by Richard Mallett
Is it still made from whales ?
Don't think so. The Swarfega product specification sheet says
Contains: Aqua
Dimethyl Glutarate
Polyethylene
Dimethyl Adipate
Dimethyl Succinate
Xanthan Gum
Propylene Glycol
Trideceth-10
Benzyl Alcohol
Message text written by Frank Evans
Flora's Dial. A fanciful dial formed of flowers which open or close at
the various hours. Can anyone throw light on this?
Hi Frank. This principle is mentioned in a short (anonymous) article in
BSS Bulletin 91.3 (October 1991) page 4. It is entitled Flower
entrants will be published in colour in future BSS Bulletins. This really
is an ideal opportunity for your photographic and artistic skills to
receive nothing short of world-wide acclaim.
Thank you for your attention. I wish all entrants the best of luck.
Patrick Powers
(2006 BSS Photo Competition
Message text written by Tom Kreyche
Can anyone tell me if there are dials for public viewing
I didn't see many when there in February last, but there are two excellent
declining dials on a building at the corner of a 'square' on one of the
tram routes up to the castle - though where exactly I am
Message text written by INTERNET:[EMAIL PROTECTED]
the possible re-siting of Christopher Wren's All Souls', Oxford, dial
Sadly we hear this morning that the College has declined the bequest
because the conditions are too onerous.
See:
Message text written by Marcin Egert
Is this only a painter imagination ? Or maybe painters did it on purpose ?
Or maybe fake armillary spheres were really produced (what for ? ).
I suspect that it is indeed simply the mistake of the painter/engraver. In
such times gnomonics was a University
Message text written by tony moss
It is a terrible thing to be 'timeless' on such occasions!.
Indeed so. My best discovery when similarly inconvenienced (it was my
watch that I thought I had calibrated before setting off - but hadn't) here
is to use the speaking clock via one's mobile phone.
Message text written by John Carmichael
a stained glass sundial made by a Mr. Alan Shuttleworth. I assume it is a
new creation that he designed and made with his own two hands. If this is
true, then he is the first and only British member of the Society, past or
present, who has made one. Hats
Recent mail from a non list member indicates that
e-mail addresses of Sundial list members are easily
accessible - probably via the list server WHO
command. This leaves us wide open to Spammers.
I would like to support that since an unsigned 'flame' reply to one of
these messages has the
Message text written by Frank Evans
I am aware of bridge dials at Ross on Wye, Hereford,
Hi Frank, my current info (which could well be wrong!) is that the dial on
the bridge at Wilton/Ross (SRN 0477) is actually in Wilton and not Ross
and, despite recent county changes is still currently
You could see the NASS site exchange on
http://sundials.org/phpBB2/viewtopic.php?p=50;
but I expect you already have!
Patrick
-
The works of Martial have been the source of more than one UK motto on
dials. One particularly difficult one (on SRN 0153 at Over Peover,
Cheshire) is Carpere vel noli nostra vel ede tua [Don't criticise the
time I give you but publish your own]. It is a quote from Martial, Epigram
1.91 line
Message text written by Mac Oglesby
or am I the only one so blessed?
I fear not! I too get duplicate messages..
Patrick
-
Message text written by John Pickard
Does any one know name of the poet???
Shakespeare? Henry VI pt3, Act II Scene 5
(I think!)
Patricik
-
Message text written by Claude Hartman
He asked me if there were such use of Gothic
numerals in old sundials. Like older clocks, I
would guess so.
Not many at all in the UK, Claude. Two or three sundials recorded by the
BSS use Gothic script on their dialplates for mottoes and inscriptions but
1 - 100 of 244 matches
Mail list logo
