,
John Davis
BSS Editor
Douglas Bateman [EMAIL PROTECTED] wrote:
No, not a dial destroyed, but the Editor of the British Sundial Society
Bulletin has telephoned me to ask if the List can be alerted to the
fact that he is off-line.
A thunderstorm a week ago took out many lines
.
A memorial ceremony is planned to be held at Newnham College, Cambridge, and
an obituary will be published in the next Bulletin.
John Davis
BSS Editor.
-
---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Hi Jim,
The obvious answer, of course, is the universal equinoctial ring dial, as
invented (?) by William Oughtred. It finds its own vertical and meridian, is
adjustable for latitude, folds up for easy stowage etc etc. But perhaps this
isn't what you meant...
Regards,
John
have similar ones?
Regards,
John Davis
Patrick Powers [EMAIL PROTECTED] wrote:
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
2:59 line and mark it as 3:00. So the sundial was
done.
However, it turns out that one minute off is too much. I overlooked the
fact that the sun, as a light source, is not square but circular.
Regards,
ChiLian
2008/2/10, JOHN DAVIS [EMAIL PROTECTED]: Hi Patrick
PROTECTED] wrote:
Dear Frank,
Try as I might, I can find no published information on where people judge
the edge of a shadow to be. It would certainly be an interesting experiment.
As John Davis observed, the human eye is very non-linear. Experience with
photography seems to suggest that, like the ear
Dear SML colleagues,
Some help, please, from the classicists amongst you.
I want to put my name and that of the client on a dial that I'm making. I
will have J Davis fecit so what is the latin for 'commissioned it' or 'had me
made' to go with my client's name?
Thanks in
for the inconvenience.
John Davis
BSS Editor
---
Dr J Davis
Flowton Dials---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Benson on p.172 of the same issue. Have you been through the
back issues looking for them?
Regards,
John Davis
BSS Editor
Sara Schechner [EMAIL PROTECTED] wrote:
Dear Fellow Dialers,
As research for a talk and book, I am seeking images of sundials in art,
literature, music
.
Regards,
John
-
John Carmichael [EMAIL PROTECTED] wrote:
Hi All (esp. John Davis, Mike Cowhan David Brown):
I just noticed something odd about the very famous stained glass sundial that
is known as The Nun Appleton Dial. I dont
,
John Davis
John Goodman [EMAIL PROTECTED] wrote:
The equation of time is not ignored by the Long Now clock. In one of
their FAQs they state:
The clock is projected to be accurate to within one day every 20,000
years, but just in case it isn't, a solar
of the home page.
A sample article is available for free download (together with a selection of
articles from earlier issues) to whet your appetite.
Regards,
John Davis
BSS Editor
-
Dr J Davis
Flowton Dials
Dear dialling colleagues,
I'm currently studying Henry Wynne's 1682 double horizontal dial at Wrest Park.
I haven't been able to get a good translation of all the mottoes - an unusual
number for a relatively early dial. They include:
Omnia fert aetas, secum aufert omnia secum (I believe the
Hi Mike (and Tom, David et al),
Thanks for the additional translation. I hope I might paraphase it as:
You cannot hold it [time]: you should not waste it.
Regards,
John
--
Dr J Davis
Flowton Dials
--- On Fri, 19/9/08, Mike Kreyche [EMAIL
of
lines for a small geographic area. One of the advantages of the geostationary
orbits of broadcast satellites is that they are mainly in quite a small portion
of the sky.
I would be most interested in any further information you can obtain from the
manufacturers.
Regards,
John Davis
Hi Fred,
Thanks for this. Whilst it's good news that there will soon be another leap
second, the article didn't make it clear (to me) that the longer-term proposal
to stop leap-seconds has been abandoned. So might we be cheering too soon?
Regards,
John
to full colour throughout.
As usual, the complete list of contents is now on the BSS website
(www.sundialsoc.org.uk and follow the Bulletin link) and a sample article is
available for free download.
Happy Christmas reading,
John Davis
BSS Editor
Hi David, Patrick et al,
The Roman dial at Hever Castle mentioned by Patrick is described by Ward
Vaughan in Antiquarian Horology 12(3), 307-12, Autumn 1980 (together with other
dials at Hever). They recount that the dial was probably brought to Hever by
Lord Astor's father c.1920 from his
the link on the left to The Bulletin). In
addition, one article, on a polarisation dial, is available for free download.
Happy dialling,
John Davis
-
Dr J Davis
Flowton Dials---
https://lists.uni-koeln.de/mailman
Dear Dialling Colleagues,
I'm forwarding this message from another mailing list as I believe it may be of
interest to all sun-watchers. Mathematicians amongst you might like to work out
the details of the 'fudge factor'.
Regards,
John
---
Dr J Davis
of the EoT cam.
Regards,
John Davis
BSS Editor
-
Dr J Davis
Flowton Dials
--- On Wed, 18/3/09, Mike Isaacs m...@mdji.co.uk wrote:
From: Mike Isaacs m...@mdji.co.uk
Subject: New equatorial dial
To: sundial sund...@rrz.uni-koeln.de
Date: Wednesday, 18 March, 2009
Hi John et al,
I think the 'spiral dial' is probably a clever bit of photoshopping of the
normal vertical dial in the same photostream!
Regards,
John D
Dr J Davis
Flowton Dials
--- On Mon, 11/5/09, John Carmichael jlcarmich...@comcast.net wrote:
From:
Dear Colleagues,
The June issue of the BSS Bulletin has recently been dispatched to members - if
your does not arrive in a sensible time, please let me know.
As usual, the Contents list is on the BSS website (www.sundialsoc.org.uk and
follow the links to The Bulletin) and one sample article
collected
over the years and I would be very interested to see a picture of yours
off-list, particularly showing the gnomon.
Regards,
John Davis
Dr J Davis
Flowton Dials
--- On Mon, 8/6/09, barnar...@aol.com barnar...@aol.com
Dear colleagues (especially in the Netherlands)
Can anyone tell me anything about the sundial referred to in this extract from
a tourist website:
Follow the canal to the right until just after Kattenhage, where you can
escape the city’s post-war urbanity in the Prinsenhoftuin (Princes’
Dials
--- On Tue, 25/8/09, Willy Leenders willy.leend...@pandora.be wrote:
From: Willy Leenders willy.leend...@pandora.be
Subject: Re: Dutch sundial
To: JOHN DAVIS john.davi...@btopenworld.com
Cc: sund...@rrz.uni-koeln.de
Date: Tuesday, 25 August, 2009, 8:19 PM
I made a page concerning
Dear All, (especially in America),
Anyone know anything about this dial?:
http://kennebecjournal.mainetoday.com/news/local/6765882.html
Regards,
John
-
Dr J Davis
Flowton Dials---
Dear Colleagues,
The September issue of the BSS Bulletin has recently been mailed out - please
let me know if yours doesn't arrive (assuming you're a member, of course!).
As usual, the contents are listed on the Bulletin page at www.sundialsoc.org.uk
and there is one article available for
. It is certainly an appropriate dial but its provenance is
uncertain.
Whatever the case, it is good to have a Tompion clock and dial so close
together.
Regards,
John Davis
--
Dr J Davis
Flowton Dials
--- On Mon, 19/10/09, Brian Albinson
Dear Frank et al,
I'm tempted to digress further.. When was the first graphical - Cartesian -
representation of the EoT on a real sundial (date as the x-axis and EoT on the
y-axis)? I haven't been able to find one prior to 1900 though I feel there must
be one somewhere.
Re questions on the
Carmichael jlcarmich...@comcast.netSubject: RE: Analemma origins.To: "'JOHN DAVIS'" john.davi...@btopenworld.comCc: "'sundial'" sund...@rrz.uni-koeln.deDate: Sunday, 15 November, 2009, 18:40
Hi John D:
You said:
)? I haven't been able to find one prior to 1900 though I fe
Hi Tony,
The same Egyptian dials appear in Hester Higton's Sundials - an illustrated
history.. The credit she gives is to Aegyptisches Museum, Berlin, no. 19743 and
19744.
Regards,
John D
--
Dr J Davis
Flowton Dials
--- On Sun, 15/11/09, Tony Moss
Dear Nicola,
You're a hero! What a wonderful treasure trove of material. Thank you very
much indeed.
John
--
Dr J Davis
Flowton Dials
--- On Sat, 13/2/10, nicolasever...@libero.it nicolasever...@libero.it wrote:
From:
Dear Dialling Colleagues,
Does anyone have an email address for Snr. don Jose Luis Basanta Campos, the
Spanish diallist, please? I have a postal address but I'm hoping for a more
convenient communication.
Regards,
John
---
Dr J Davis
Flowton
Dear Colleagues,
I am trying to make contact with the French diallist Denis Schneider and the
email address I have been given doesn't work. Does anyone have an up-to-date
address, please?
Regards,
John
---
Dr J Davis
Flowton
Dear Dialling Colleagues,
I'm pleased to announce that the September issue of the BSS Bulletin, which has
just been distributed to members, is our 75th edition. As usual, a list of the
contents is available on our website www.sundialsoc.og.uk, as well as a sample
article for free download. If
Dear Colleagues,
Oops - I hit return too soon! The address should have been
www.sundialsoc.org.uk.
Regards,
John
-
Dr J Davis
Flowton Dials---
https://lists.uni-koeln.de/mailman/listinfo/sundial
articles, by John Wall and Roger Bowling. Full references to anyone
interested...
Regards,
John Davis
---
Dr J Davis
Flowton Dials
--- On Fri, 15/10/10, Tony Moss t...@lindisun.demon.co.uk wrote:
From: Tony Moss t...@lindisun.demon.co.uk
Subject: A giant non
Hi John,
Glad to hear of someone in the USA doing photo-etching of dials. Do let us see
your results in due course.
As a quick point, the dry film photoresist frothat Tony Moss mentioned is a
three-layer (polythene-resit-mylar) structure. They don't actually make it
themselves - I
Kratzer's 'strange' instrument in The Ambassadors is described in some detail
in Peter Drinkwater's self-published 1993 booklet The Sundials of Nicholas
Kratzer. The item is shown disassembled and, as Drinkwater shows, is either
faulty or inaccurately drawn.
Regards,
John
Hi Bill (and other dialling colleagues),
The data that you show looks very similar to the Venerable Bede's shadow length
tables (though the values are slightly different). This gives the length of a
person's shadow on the assumption that their height is equal to six of their
own feet (tall
Dear Dialling Colleagues,
The British Sundial Society is pleased to announce that the full run of BSS
Bulletins, from the start of the Society in 1989 until September 2010 (a total
of 75 issues) is now available on a DVD-R.
The cost of the DVD to BSS members is £25 +pp. It may also be
Hi Fabio et al,
Thank you for posting this. It is a dial with an interesting provenance and
will be described in a detailed article in the June issue of the BSS Bulletin.
Book you copy now!
Regards,
John
Dr J Davis
Flowton Dials
--- On Thu, 17/3/11, Fabio
Dear Colleagues,
The online contents list of the BSS Bulletin has just been updated and now
includes one more article for free download. Go to:
http://www.sundialsoc.org.uk/bulletin.htm
Regards,
John
--
Dr J Davis
Flowton
Dear Jim et al,
I think the item here is a draft of an article due to appear in the June issue
of the BSS Bulletin. The author has 'jumped the gun'!
Regards,
John
BSS Editor
--
Dr J Davis
Flowton Dials
--- On Mon, 11/4/11, J. Tallman
Hi John C et al,
Here in England, 'Mind your business' (or 'Go about your business') is a not
uncommon sundial motto - there is one on a vertical church dial from the 1700s
not far from where I live. I wonder if Franklin saw one of them?
Regards,
John D
Dear Mike et al,
I investigated these pictures some months ago, when they were first posted. I
thought they might make a worthwhile, if speculative, article. The finder,
though helpful, was unable to give any sensible information and, although not a
sundial expert of any kind, had labelled
Dear Colleagues,
The June issue of the BSS Bulletin has now been dispatched to members - please
let me know if yours doesn't arrive in a sensible time.
As always, the extended list of Contents for all issues and a free downloadable
article from this latest issue are on the BSS website at
Hi Frans et al,
I think the device looks like a long-working-distance microscope, positioned to
allow observation of the details of the flowers or the insects that land on
them!
Regards,
John
-
Dr J Davis
Flowton Dials
--- On Fri, 19/8/11, Frans W. Maes
), together with a sample article for free download.
Regards,
John Davis
BSS Editor
-
Dr J Davis
Flowton Dials---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Hi JM,
Interesting indeed. It's a shame, though, that the statue shows Champlain
holding the astrolabe from below, rather than suspended!
John D
-
Dr J Davis
Flowton Dials
--- On Mon, 5/12/11, J M jgera...@gmail.com wrote:
From: J M
but not bolted down.
Could this be a Tony Moss or John Davis dial?
The caption ...rendering sundials useless
is a little over the top in my view!
The impression I get is that the Canadians,
the Chinese and the British are in favour
of keeping leap seconds but the French,
German and U.S. authorities
Dear Jim, Sara et al,
I agree with Sara that the terms 'equatorial dial' and 'equinoctial dial' are
synonymous. I believe that the reason we have two terms is purely historical.
English diallists writing in the 16th 17th centuries were looking back at
armillary spheres which represented the
Dear Roger et al,
I don't think the later middle ages were quite as dark in Europe as you
suggest. Science did make some progress (eg the 'Merton calculators') despite
the disruptions of the various plagues.
For example, the monk Robert Stikford, working at St Alban's Abbey (not far
from
Dear Dialling Collegues,
The March issue of the BSS Bulletin has recently been distributed to members.
Please let me know if yours does not arrive in a sensible period.
As usual, the Contents list, and a sample article for free download, is on the
BSS website at
Dear Linda,
I have a telephone number but not an email for Brian Main (contact me off-list).
I believe that the dial was made to a design from Modern Sunclocks. The two
rings of hour numbers are for GMT and BST (give or take the EoT correction).
Otherwise, it is a standard analemmatic dial.
Dear Frank et al,
Thank you for the extract from the General Order for lighthouse dials. The
thing which surprises me is that it is the EoT value engraved on the sundial
that is being taken as the correction figure, rather than one for the date in
question published in the current Nautical
Hi Andrew et al,
There is a picture of about 9 of the dials from Scottish lighthouses lined up
on a wall (just before their sale in 1997) in BSS Bulletin 11(i), p. 49,
February 1999.
The story of the Bath Pump Room Tompion dial has been in the Bulletin too - all
(sundial) life is there!
Dear Dialling Colleagues,
The June issue of the BSS Bulletin was dispatched a couple of weeks ago so all
members should have received their copy by now.
As usual, the complete contents list can be found on the BSS website,
www.sundialsoc.org.uk together with one article available as a pdf
Hi Jackie et all,
An interesting question! I have made compasses for replica dials and found it
more difficult than I expected. If you want a quick answer, it would be to buy
a cheap compass and pull it apart so that you can re-case it and make an
appropriate compass card but keep the same
Hi John B,
Your suggestion of using a piece from the mainspring of a clock for a compass
needle is quite a good one - I have done this. It needs to be tempered by
heating and then allowed to cool slowly first. However, the disadvantage is
that the material tends to be rather thinner than is
Hi Josef et al,
Thanks for that link. The theft of the sundial made yesterdays TV news here in
East Anglia - perhaps the first time a sundial has featured there (and for all
the wrong reasons...).
It is worth pointing out that the dial which was stolen was a small-scale
replica of the large
Hi Kevin,
That looks very good - I'll certainly be interested to see it in bronze.
From memory, there are two dials at Ham House - which is this an almost exact
clone of?
Regards,
John
-
Dr J Davis
Flowton Dials
--- On Sat, 14/7/12, Kevin
Hi Bill,
I believe the lines on the dials are described by the designer (Chris Daniel,
the BSS President) as being 'platinum', and the blue colour as 'enamelled' -
I'm not sure if these are forms of 'gilding' and 'vitreous enamel',
respectively.
Regards,
John
Dear Dialling Colleagues,
The December issue of the BSS Bulletin has recently been dispatched to members.
If yours doesn't arrive in a sensible time, please let me know.
As usual, the contents are listed on our website,
http://www.sundialsoc.org.uk/bulletin.php and there is also one article
Dear Colleagues,
The March issue of the BSS Bulletin has recently been distributed to members.
As always, if yours doesn't arrive in a sensible time, please let me know.
The Contents list, together with a sample article for free download, is on
http://www.sundialsoc.org.uk/bulletin.php
Hi Sara,
Your idea of writing up the Wellesley College dial is a good one - I for one
would like to know the full story and read your experiences.
The replica dial isn't a bad attempt (other than that awful gnomon!) and
appears to have been hand engraved. But the details of the Equation of
Dear Frank,
The EoT might change sign on Euler's 306th birthday but I very much doubt
(without checking!) that the changeover was the same on the date of his birth!
Regards,
John
--
Dr J Davis
Flowton Dials
--- On Mon, 15/4/13, Frank King
Dear Wolfgang,
Thank you very much for these two links - most useful. I am getting a problem
with the second link, though: Google opens the journal for me but the pages on
the Erfurt sundials
are blank except for the message
Sie haben entweder eine Seite erreicht, die nicht angezeigt
Dear colleagues,
Archaeologists in Zutphen, The Netherlands, have uncovered a copper-alloy
quadrant marked for equal hours. Stratification of the layers is apparently
indicating a date in the range 1300-1325 which, if true, predates the Richard
II quadrants in the British Museum by around a
Hi Kevin at all,
If you want really high resolution from a small solar timekeeper, try a
dipleidoscope! They can resolve down to a second or two.
Regards,
John
Dr J Davis
Flowton Dials
From: Kevin Karney kar...@me.com
These dials are latitude adjustable,
Dear Dialling Colleagues,
The June issue of the BSS Bulletin has recently been dispatched to members.
Should yours not reach you in a sensible time, please let me know.
As always, the running Contents list is on our website at
http://www.sundialsoc.org.uk/bulletin.php and there is a sample
Hi Brad,
There have been two articles on sundials for the blind in the BSS Bulletin:
Fer de Vries: 'A sundial for the blind', Bull 91.3, October 1991
A.A. Mills, P Stapleton J Hennessy: 'Sundials for the blind' Bull 15(ii) June
2003.
As a BSS member, I presume that you either have these
Hi,
If you are working in Word, type the two characters one after the other. Then
select to the first, go to FontCharacterSpacingCondensed and choose an amount
(eg 12pt) to match the character size.
There are other Unicode characters which effectively give a backspace(or zero
character
Hi Frank et al,
Dials with azimuth lines are rare but not unknown in the UK. Writing from
memory, there is a rather nice one on Grundisburgh church near me and I believe
the famous Queens' College, Cambridge, dial also has them amongst all the other
furniture. There are a few others, I'm sure:
Hi Frank E,
As Frank K has said, your suggestion for reading azimuths with a polar-oriented
gnomon and a set of declination lines (rather than with a nodus) is perfectly
possible. But, in my experience, it would make the dial somewhere between very
rare and unique as all the English examples
Dear Dialling Colleagues,
Those of you interested in sundials on the Isle of Wight (just off the coast of
southern England) might like to look at the website of Elizabeth Hutchings at
www.hutchings1776.talktalk.net/sundials .
Elizabeth is an IoW resident and came to sundials quite late in
--
Dr J Davis
Flowton Dials
From: Kevin Nute kn...@uoregon.edu
To: sundial@uni-koeln.de; Peter Ransom pran...@btinternet.com; JOHN DAVIS
john.davi...@btopenworld.com
Sent: Tuesday, 6 August 2013, 21:38
Subject: Visibly Moving Gnomon Shadows
Dear Dialling Colleagues,
The September issue of the BSS Bulletin was posted to members at the beginning
of this month. I hope yours has arrived by now - let me know if not. As usual,
an updated Contents list and an article for free download are on our website at
Hi Darek,
I think they are really the same book. If you look, they have the same ISBN.
Hester did write another, more academic, book cataloguing the dials at the
Greenwich NMM but that was a lot more expensive.
Regards,
John
-
Dr J Davis
Flowton Dials
Dear Sundialling Colleagues,
The December issue of the BSS Bulletin has just been posted out to members. If
yours doesn't arrive in a reasonable time, please let me know.
As usual, the complete Contents List is available on our website
(http://www.sundialsoc.org.uk/bulletin.php) together with
Hi Dennis,
Bad news, I'm afraid! This is almost certainly an early-20th-century
'decorative' dial of the type made by firms like Pearson Page Ltd and
advertised in their catalogues. The spelling, the use of a motto at all, the
arrangement of the hour numerals etc etc are all wrong for a 17th
Dear colleagues,
The March issue of the BSS Bulletin was dispatched a few days ago and most
members should have received their copies already. Let me know is yours doesn't
arrive soon.
As usual, the full Contents list and a sample article are visible on our
website at www.sundialsoc.org.uk
Hi Doug, Elizabeth et al,
Yes, the James Fox programme on the English Renaissance was interesting -
though not absolutely correct with its facts. When describing Nicholas
Kratzer's contribution to dialling, it was actually misleading and tended to
perpetuate the myth that Kratzer introduced
Hi Jackie,
That sounds an interesting project.
To answer your question about what sort of sundial a hard-up doctor might have
had in 1613, I think the most likely type would have been a pocket dial, either
a small round wooden one like those found on the Mary Rose (there are modern
replicas
Hi Jim et al,
Sutton's quadrant was described at some length in a two-part article:
M. Lowne J.
Davis: ‘A Horizontal Quadrant of 1658 by Henry Sutton; Part 1’, BSS Bull.,
23(ii) 8-13 (Jun
2011).
with the second part in the following issue.
Regards,
John
---
Dr
Hi David,
The starting point for making moondials must be Michael Lowne's classic article
Moondials and the moon in BSS Bulletin 17(i) pp3-12. In it, amongst other
things, he shows that the value of 48 minutes for the daily offset is in fact
not the best number to choose.
If you want
Fellow diallists,
TV viewers in the UK may be looking at the BBC2 series of 'Springwatch'
programmes, with another 11 hours of nature-watching still to come. It is being
filmed from the RSPB Minsmere (Suffolk) nature reserve.
As the cameras wander around, look out for a visitor attraction on
Hi Steve et al,
It's usually just called a disc dial. I don't think the example shown is
latitude-adjustable: the suspension point is fixed. All the historical ones
I've seen are single latitude devices. Only the occulus is adjustable, for date
(declination). Earlier examples had the hour
Dear Dialling colleagues,
The June issue of the BSS Bulletin, a special edition for our silver jubilee,
was dispatched yesterday. Members should expect it in a day or so (rather more
if long distances are involved!).
As usual, the Contents List and a sample article for download can be found at
Hi Kevin (et al),
Great stuff! I particularly like your item 4, the dates when the EoT has values
of whole minutes. This is a useful feature for reproducing the scales on old
dials. I have possible extension to this you might like to add: many of the
larger and better-quality 'London'
Dear Dialling Colleagues,
The September issue of the BSS Bulletin was recently dispatched - members
should expect to receive their copies soon (if not already!). As usual, the
Contents List, together with one article for free download, is on our website
at www.sundialsoc.org.uk.
Regards,
Dear Claude et al,
We published an article by Robert Hannah on this topic in the BSS Bulletin:
R. Hannah: 'The Pantheon as a Timekeper', BSS Bull., 21(iv), pp. 2-4 (Dec 2009).
It is available in downloadable form on the BSS website at
http://sundialsoc.org.uk/publications/the-bss-bulletin/
Hi Dan et al,
Alan Mills was co-author of an article Sundials for the Blind in BSS Bulletin
15(ii), 58-60 (June 2003).
Regards,
John- Dr J Davis
Flowton Dials http://www.flowton-dials.co.uk/
BSS Editor http://sundialsoc.org.uk/publications/the-bss-bulletin/
From:
Hi Dan,
Well spotted! However, neither the horizontal sundial nor the hourglass was
invented until the Middle Ages. Yet another example of Hollywood making up
history!
John
Dr J Davis
Flowton Dials http://www.flowton-dials.co.uk/
BSS Editor
EK stands for Etos Kyriou, Greek for “the year of the Lord”. See J.Davis, MJ
Harley & H James, 'Joseph McNally's Slate Sundials', BSS Bulletin 16(iii)
pp.110-116.
John Dr J Davis
Flowton Dials http://www.flowton-dials.co.uk/
BSS Editor
Hi Jackie,
I think that what you have there is a circumzenithal arc (CZA), possibly with a
matching circumhorizontal arc (CHA). They are caused by the sun's rays
refracting through ice platelets high in the atmosphere. You need the sun low
in the sky for them to be seen. There are other ice
Hi John,
I can offer:
J. Davis: ‘Alightweight laser trigon for layout of sundial lines’, BSS
Bulletin, 11(iii), pp.144-146, (1999)
which included drawing analemmic hour lines, and for an earlier purely
mechanical example (built of Meccano!) there was
Noel Ta'Bois: 'Sundial Line Drawing Jig',
Hi Sara, Richard et al,
Sixteenth century wall dials of any sort are rare and have usually been
repainted many times so it is not always clear how original the design is.
There are a few 17th century dials with planetary hours around: you can see a
couple in the articleM. Lowne & J. Davis:
Hi Sara,
Congratulations to you and your co-authors. I would look forward to reading it
but the link you give to Brill shows the book at the horrendous price of $150
and my previous experience with other titles in this Brill series is that the
printing quality can be very poor and the pictures
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