How wrong is your time zone: Map shows how far world clocks are from solar time

http://www.slate.com/blogs/the_world_/2014/02/21/how_wrong_is_your_time_zone_map_shows_how_far_ahead_or_behind_the_world.html Are you aware of any territories following official solar time? Dan Uza ---

Re: How wrong is your time zone: Map shows how far world clocks are from solar time

n-authorized > use of this email is subject to penalty of law. > So there! > > > > On Sun, Oct 25, 2015 at 9:22 AM, Steve Lelievre < > steve.lelievre.can...@gmail.com> wrote: > >> On 24/10/2015 15:22, Dan-George Uza wrote: >> >>> >>> >>

Re: largest sundial

o you all, > > Jackie > > > > Jackie Jones > > 50° 50’ 09” N0° 07’ 40” W > > > > ------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > > -- Dan-George Uza http://cerculdestele.blogspot.

Ancient sundials in Romania

Dear Group, Below you will find two articles dating back from 1966 and 1970 respectively about a few ancient sundials that have been discovered in Romania. The text was written in French.

Construction of a Hemispherium

Hello! I am trying to locate a copy of Fer de Vries' website article detailing the construction of a hemispherium sundial. The link was posted here in 1996 but it is no longer available. Please help if you can. ​Dan Uza ---

Possible sundial in movie

Hello, Tonight I saw the trailer for "The 100-Year-Old Man Who Climbed Out the Window and Disappeared". https://www.youtube.com/watch?v=P-k7DUQPHfQ After the old man climbs out the window at 0:53 he walks past what appears to be a cast iron armillary sundial. However, as the equatorial band

Re: Romanian reclining sundial

out sundials' (mostly in Dutch): > http://www.wijzerweb.be > > > > > > > > Op 1-okt-2015, om 21:24 heeft Dan-George Uza het volgende geschreven: > > Dear group, > > I am happy to be able to share a picture of the first Romanian reclining > sundial built recently by Dam

Ancient Astronomy and Astrology in Early Judaism

Hello, This might be of interest to researchers. "Zodiac Calendars in the Dead Sea Scrolls and Their Reception - Ancient Astronomy and Astrology in Early Judaism" by Helen Jacobus is a recent scholarly book (2014) about ancient middle-eastern astronomy which also handles the subject of

Re: Gnomon filaris mystery

rtainly making this one of the strangest sundial poems I've come across. Dan Uza On Sun, Nov 29, 2015 at 7:55 PM, Dan-George Uza <cerculdest...@gmail.com> wrote: > Hello, > > Catholic bishop Batthyany Ignac established one of the first astronomical > observatories of Tra

Diamond Fuji

Hello, I saw a news report today about “Diamond Fuji”. When the sun appears to rise or set on top of Mount Fuji in Japan it shines like a diamond. http://newsonjapan.com/html/newsdesk/article/114827.php -- Dan ​ Uza ---

How to tilt circular text in Delta Cad

Hello, This is something I've always wanted to do but didn't know how. I'm talking about adjusting the numerals on a horizontal sundial so that they appear both circular and slanted in accordance to the offset hour lines. Can this be accomplished in Delta Cad? Thanks! Dan Uza

Re: How to tilt circular text in Delta Cad

It's certainly possible to wrap text in a circle. Here's a small > image of a modification I made some time ago to a Steve Lelievre dial. I > can send the bits of code I used if it's of use. Slanting is another > question though... > > best wishes, > > Peter > > O

Using analemmatic sundials for determining sun exposure times

Hello! An interesting use for an analemmatic sundial which I have only recently read about involves measuring how many hours the sun potentially shines on a given vertical wall. First you draw the analemmatic sundial on paper according to your geographic location. Then you place a ruler on the

Re: Using analemmatic sundials for determining sun exposure times

How about any south facing wall during equinoxes? Dan On Tue, Jun 14, 2016 at 6:39 PM, Frank King wrote: > Dear Willy and Geoff, > > Good answers but the correct value > exceeds both your scores. > > Let's see who else will rise to the > challenge before I declare my hand!

Horary machine

Hello! An old print depicting a "horary machine" is being sold on E-bay. Can you please tell me what it is and how it works? [image: Inline image 2] http://www.ebay.com/itm/1766-PLUCHE-Horary-Machine-Ring-Dial-Sundial-Antique-Engraving-/291691633308?hash=item43ea2d1a9c:g:9nUAAOxyrrpTgZSe

Shadow during solar eclipse

Hello, A friend came up with a theory about the sundial of Ahaz. He says that because the Moon covers the Sun from west to east during a solar eclipse, on a very precise sundial the shadow should appear to move slightly backwards. I've done a test using my phone's flashlight and it appears to

Gnomon of Saint-Sulpice

Hello, Last week I visited the meridian line of Saint-Sulpice in Paris which dates back to 1743. After the French Revolution the Republicans chiseled out all references to royalty from the inscriptions. I don't know why but they also erased some of the zodiac signs. Could it have something to do

Sundial in Risen movie

Hello, I've spotted a horizontal sundial in the new biblical drama film Risen (2016). You can see it in different scenes starting about half an hour into the movie. It's alongside a hourglass on a desk belonging to Roman tribune Clavius, the main character. I'm attaching a screenshot. Dan Uza

Planispheric projections

Hello! This is not particularly sundial-related but: can you create an oblique azimuthal equidistant projection solely by technical drawing in Delta Cad? I understand that David Chandler's planisphere uses such a projection in both southern and northern face and it looks great.

Sundials with Greek alphabetical numerals

Hello! This is the only sundial with Greek alphabetical numbering I've come across in Romania and I was wondering: are they common in the rest of Europe? Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Moon phases on a meridian line

Greetings! Can anyone please share a photo of a lunar projection from a *camera obscura* type sundial? Thanks! Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Astronomical tourism in Rome, Italy

Hello! S.T.A.R by Mobile Soft is a nice phone app for your next visit to Rome. It features several sundial-related locations inside the city. They include the Horologium Augusti, Santa Maria degli Angeli meridian line, the Pantheon, St.Peter's meridian line. Descriptive text is in English, but

British artist accuses Shanghai sundial of being ‘complete copy’

Well, at least they changed the angle... http://m.scmp.com/news/china/society/article/2050104/british-artist-accuses-shanghai-sundial-being-complete-copy-her Dan Uza Romania --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Why we should reform the Calendar

A bit off topic, but I enjoyed this quite a lot! https://youtu.be/EcMTHr3TqA0 Dan --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Genuine or not?

Hello! There's a diptych sundial on sale for about 80 euros supposedly dating from 1920. Do you think this is genuine? I think it is a modern replica. http://anticariatulnou.ro/diverse/antichitati-artizanat-colectionabile/cadran-solar-cu-busola-antica-din-lemn-diptic.html The string does not

A different sort of timekeeping

Dear group, Here's an interesting trivia from a German book written by Helga Pohl: "Wenn dein Schatten sechzehn Fuss misst, Berenike" (1955). While talking about ancient Chinese timekeeping, she mentions that they used water clocks and the shadows of the edges of their homes to tell approximate

Ceahlau shadow pyramid

Hello! You might not know about this. Every year around the 6th of August (Feast of the Transfiguration) an interesting optical phenomenon occurs in Ceahlau Mountains of Eastern Romania: from the top of Toaca summit (1904 meters) a giant triangular shadow can be seen stretching across the

Sun path polar chart generator

Hello, I'm looking for a freeware solution to generate customizable polar sun path charts in vector format. The software should be able to display sun paths for a custom time interval (like daily, weekly) and feature analemma curves for standard hours. Any help will be appreciated! Dan Uza

Re: Sun path polar chart generator

egards > Helmut Haase > > -- > Am 27.02.2017 15:49, schrieb Dan-George Uza: > > Hello, > > I'm looking for a freeware solution to generate customizable polar sun > path charts in vector format. The software should be able to display sun > paths for a custom time interval

The Brightest Part of a Shadow is in the Middle

Hello, what a fascinating video this is! https://www.youtube.com/watch?v=y9c8oZ49pFc Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

I count only the bright hours

Hello, I was wondering about the origin of this famous sundial motto. Latin form is *Horas non numero nisi serenas - *does this mean it's from an ancient text? I have seen Horace's Odes quoted for this, but I haven't been able to find it in his works. Dan Uza

Tower of the Winds

Did you know that this important Greek monument has recently re-opened to the public for the first time in 200 years? http://www.reuters.com/article/us-greece-archaeology-towerofwinds-idUSKCN1101OS Dan Uza ---

Using color temperature to determine time

Hello! I've recently become interested in film photography. I think it has some similarities to sundials. For example, it is said that black and white film photography is about taking pictures not of actual subjects, but of light and shadows. I find it fascinating how light actually darkens the

Solar Declination

Hello, Can you provide a free accurate spreadsheet for the calculation of daily solar declination across a leap year as well as non-leap year? Thanks, Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Permanent DST

Dear group, We are witnessing a few interesting developments! After Turkey decided a few months ago to remain on Daylight Saving Time all year round, Hungary is now considering to do the same. http://www.seattletimes.com/nation-world/hungary-mulls-staying-on-daylight-saving-time-all-year-round/

Astrolabes

Dear group, While visiting the Barcelona CosmoCaixa this spring I saw a wonderful looking astrolabe on display in the science museum gift shop. It is the one listed below: http://www.antiquus.es/p-172/Orientacion-y-Medida/Astrolabio/Astrolabio-Arsenius-20-(dos-latitudes) This brass plated

Re: Bringing the sun indoors

Thanks for the link! Here's bringing the sun outdoors: if you haven't already, check out Viganella in Italy! http://m.dw.com/en/lighting-up-a-shady-village/av-37251098?maca=en-Facebook-sharing Dan Uza On 21 Mar 2017 19:29, "John Goodman" wrote: > Not a sundial, but

Watches that display EoT

Hello, Here's an interesting wristwatch from this year that shows the Equation of Time in a clever way. "Sex on a wrist!" - to quote a comment. https://www.hodinkee.com/articles/vacheron-constantin-les-cabinotiers-celestia-astronomical-grand-complication-introducing Of course there are many

Solar watchface for a Pebble smartwatch

Hello, I've recently bought a Pebble smartwatch and I thought I'd share my favorite watchface with you. It's called "Solar watch". It displays the current date, outside temperature, standard time (in white), but also sunrise and sunset times, as well as local apparent solar time (in black). The

Adjustable metal frame for a vertical sundial

Hello, I was wondering if some of you used adjustable metal frames for orienting vertical sundials due south. I remember seeing on the Internet such a framework for fine-tuning vertical sundials made of aluminum composite... but I can't remember where. Would it be possible to apply this technique

Re: St. Hildevert

Is this an official Catholic saint? Can't find him here for today http://catholicsaints.info/27-may/ Dan On Sat, May 27, 2017 at 4:04 PM, Fred Sawyer wrote: > Happy St. Hildevert's Day - patron saint of dialists. > --- >

Cast resin sundial

Hello! I'm looking for advice on how to cast a sundial from epoxy resins, specifically a cubical multiple sundial. Any ideas on how to go about casting the faces? Thanks, Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Pocket sundial

Hello, has anyone got one of those? https://www.pocket-sundial.com/ Dan-George --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Sundials in Belgrade / Novi Sad

Hello, I will be travelling to Belgrade and Novi Sad next week. Can you recommend a few sundials for me to visit there? Haven't found any on Sundial Atlas. Thanks Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Great Circle Studios webpage gone?

I use Gian's *Sun Ephemeris* and love it! http://www.sundials.eu/download/SunEphemeris_enu.html Dan On Thu, Oct 12, 2017 at 10:53 PM, Patrick Powers < patrick_pow...@compuserve.com> wrote: > I believe that Great Circle is indeed no longer available. It disappeared > once before only to return

Re: Hemicyclium correction

I find the video below extremely instructive! https://youtu.be/0hs6QqwJIhs The sundial is marked in old temporary (or seasonal) hours. Changing them to modern hours does not make much sense to me. For it to become a hemicyclium I guess you just have to leave out the unused part of the

Sundial books for children

Hello, I am looking for titles of sundial books for children. I particularly liked Annos sundial pop-up book by Mitsumasa Anno. Also, I would like to know some of your experiences in working with kids. What do you think is the best approach to teach 10 year olds about sundials? Regards, Dan Uza

Meridian line in Brussels

Hello! I'm looking for information and photos about a meridian line inside Brussels St Michel church. Rene Rohr mentions it in passing in his work about sundials. Thank you. Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Sundial with filtering panels

Hello, How would you go about designing such a sundial sculpture without CAD (it was built in 1980)? https://apod.nasa.gov/apod/ap120626.html How precise do you think it is? And what would be the minimum required size of the separation for light to pass the filtering panels only on equinox

Re: The utility of sundials today.

Meanwhile in France... According to a recent opinion poll, the monumental sundial of Perpignan (SOLART2) made it into the top 3 of worst/ugliest roundabouts in the country. It's also the largest in Europe.

Sundial Calendar for 2018

Hello, I have prepared a calendar for 2018 containing images of Romanian sundials and some daily astronomical information (the equation of time, the Sun's declination angle & zodiac sign, the Moon's phase & age etc.).You may download the English version at the link below: https://goo.gl/FNafub

Lithuania wants to abolish DST

>From the news: https://www.euractiv.com/section/health-consumers/news/lithuania-hopes-to-kill-daylight-savings-time/ Please also note the smiling sundial in the picture. Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

UFO Secrets Of The Settle Sun Dial

Hello, Any thoughts on this book? https://www.amazon.com/UFO-Secrets-Settle-Sun-Dial/dp/B01F9QJMVM In Settle (England) once stood "the largest sundial in the world", but it suddenly disappeared from the scene and from the historical records. The author suggests that this was not just a sundial,

Frank W. Cousins

Not realy a biography, but rather an investigation into the life and work of Frank W. Cousins - author of "Sundials - The Art and Science of Gnomonics / A Simplified Approach by Means of the Equatorial Dial". Text is German, but I guess Google Translate works well enough.

Re: A trip to Vienna

Darek, For Vienna I recommend the Freiluftplanetarium installation on a hill at the outskirts of the city. It's sort of a modern day Stonehenge and it also has a monumental sundial (including a qibla marker!). It is a bit difficult to get to, but I liked it a lot. Here you have some photos:

Sundial Conference in Romania

Dear all, You are cordially invited to attend the 2018 conference of the *Romanian Society for Cultural Astronomy*. The event will take place for two days in *Timişoara, Romania, *on *November 16th and 17th* of this year. The organizers have launched a call for papers in one or more of the

Analemma intersection

Hello, Tomorrow the Sun will have reached the point of intersection in the analemma 8-curve. How do you compute the exact time of intersection (i.e. when both the hour angle and the solar declination match for two days)? And does it have any special significance? Dan

Re: Sundial Atlas

Dear Fabio, Congratulations on your impressive work! I am using Sundial Atlas to keep track of the Romanian sundials as well as every time I go abroad to find local sundials. I am convinced that future generations will appreciate this extraordinary tool... provided there will still be people in

Solar math

Dear all, given the azimuth and altitude of a point in the sky, what would be the best way of finding the dates and times during which the Sun reaches that point? Is there any software for this? Dan Uza ---

Zodiac concrete slab

Do you think this item is genuine? I can't make out any hour lines, although there seem to be some kind of anchor points for a rod. Watch from min. 11:09 onwards. https://youtu.be/-o-70BqIxIs Dan Uza ---

Accuracy of wristwatch as compass

Hello! I'm sure you know the method of pointing the analogue wristwach hour hand towards the Sun and then bisecting the angle to 12 o'clock in order to find south (or north, if you live down in the south). Actually I guess what you should be doing is bisect the angle to your noon time and not

Re: How good is a cell phone compass

In my experience, cellphone compasses are completely unreliable for dialling. Some are off by more than 20 degrees. You can quickly check the accuracy on Google Maps: the narrower the blue cone is, the more accurate results will be. Dan Uza On Tue, Sep 11, 2018 at 10:39 PM Steve Lelievre <

Re: How good is a cell phone compass

I would try to use a theodolite. If you center it on the first point and know the azimuth to a distant reference, I guess you can determine where the second post needs to be. Dan Uza On Tue, Sep 11, 2018 at 10:48 PM Dan-George Uza wrote: > In my experience, cellphone compasses are complet

Re: ​Reinhold Kriegler

I am shocked and saddened by this terrible news. Although I did not have the chance to meet Reinhold in person, we had a very interesting correspondence during the last few years. He was very active and had such a rich contribution to this field. He once confessed to me that he hoped his website

Re: Frank King

Here's the link. https://www.dailymail.co.uk/news/article-6727419/Top-sundial-expert-sheds-fascinating-light-art-form-fears-slipping-shadows.html Dan Uza On Thu, Feb 21, 2019 at 11:17 AM Colin Davis wrote: > Hi! > > In todays Daily Mail is a full page article by Frank King on his fear > about

Re: dischrony

By the way: how would you translate the Italian "foro gnomonico" or the French "oeilleton"? Dan Uza On Tue, Mar 12, 2019 at 2:02 PM Frank King wrote: > Dear Fabio, > > An interesting message... > > > In Italy some sundials show the > > written 'costante locale'... > > I find Italian gnomonic

Historic sundials

Hello! If you were to make a presentation addressed mainly to schoolchildren or early college about some important historic sundials, which ones would you choose and why? I would be interested in your shortlist, perhaps a top 5 of historic sundials? Best wishes, Dan Uza

Dr. Rüter Sundial

I've never seen one of these before. https://www.ebay.de/itm/Original-Dr-Ruter-Sonnenuhr-Berlin-1946-Kompass-Uhr/382722122995 Once you push a button, the dial plate with gnomon seems to rotate by compass so as to align with magnetic north showing both summer time and winter time. I guess small

Re: dischrony

Dear Fabio, I use "longitude correction" ("corectie de longitudine"), but also "meridian correction" ("corectie de meridian") would sound okay in Romanian. Ciao, Dan On Tue, Mar 12, 2019 at 12:55 PM fabio.sav...@nonvedolora.it < fabio.sav...@nonvedolora.it> wrote: > hi all, I've a matter to

Re: dischrony

on behalf of Frank King < > f...@cl.cam.ac.uk> > *Sent:* 13 March 2019 12:29 > *To:* Dan-George Uza > *Cc:* Sundial List > *Subject:* Re: dischrony > > Dear All, > > I have a mild distaste for "correction" since > it implies something is wrong. In part

Can a sundial disprove Flat Earth?

Hello, In my country there is this growing Flat Earth movement akin to religious fundamentalism. No matter what you throw at them, they simply ignore it. There is even a big group on Facebook of about 5,000 users. I recently joined there for fun. First I thought they were joking, but everybody

Temporal hours to modern hours

Hello, In a note quoted below from the "Dictionary of Greek and Roman Antiquities, John Murray, London, 1875" I found the following advice to convert temporal hours to modern hours. *"A very quick and easy rule of thumb, when we read "the third hour, the sixth hour", etc., is to add 3, 6, etc.

Paper templates for Roman Sundials

Dear all, I'm looking for examples of Roman Sundials that can be printed, cut out and assembled. Something not too difficult so that potentially a child could do it. I found some examples on http://sundialatlas.net (APP 37, 38, 41). How about a Pelekinon? And would a shepherd sundial be Roman

Romanian Conference on Cultural Astronomy

i limitate - primul venit primul servit). Putem rambursa parțial drumul spre Timișoara în funcție de fonduri și număr de cereri. Cu deosebită considerație, Marc Frîncu Președintele SRPAC --- This email has been checked for viruses by AVG. https://www.avg.com -- Dan-

Sunrise/sunset in old calendars/almanacs

or south. Nevertheless, I made a simulation and realized that I cannot get close to these numbers. I don't know why. Perhaps because back then sunrise and sunset was not counted by solar limb, but by geometric center of the Sun? How did they do it? Regards, -- Dan-George Uza

Re: Sunrise/sunset in old calendars/almanacs

- sunrise: 7:54 pm and sunset: 4:05 pm - day length - 8 hours and 12 minutes, night - 8 hours and 48 minutes Dan Uza On Fri, Aug 9, 2019 at 10:50 PM Dan-George Uza wrote: > Dear Steve, > > I will share the data for the whole year once I get it (I only have >

Re: Sunrise/sunset in old calendars/almanacs

your table of data for the full year, the result would of > course be different - better, I would hope, but possibly not! > > As yet, I have no idea why the stated day length is not the same as the > difference of the sunrise and sunset. > > Steve > > > On 2019-08-09 1:06 a.

Sundial designs against vandalism

Hello, Horizontal sundials are often victims of vandalism. I am looking for ideas or designs of gnomons which are not that easy to break off i.e. how to attach them permanently to the base plate. Can you help? Thanks, -- Dan-George Uza --- https

Amazfit Bip watchface

Hello, Is there any gnomonic watchface for the Amazfit Bip smartwatch? To display EOT, LAT, declination etc. Thanks, -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Sunrise time glitch?

there. -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Aperture nodus geometry

niversally acceptable? -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Denizli sundial

Hello, I've just read about the discovery of an antique sundial in Turkey. https://www.dailysabah.com/life/history/2000-year-old-sundial-unearthed-in-southern-turkeys-denizli Best regards, -- Dan-George Uza --- https://lists.uni-koeln.de/mailman

Islamic time measurement

for a good part of the Middle Ages. Can anyone explain how Muslims used the spear length to measure the height of the sun back in the days? -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

English native speaker wanted

. There are about 20 A4 pages for you to review. I can offer a signed paperback copy as a modest thank you gift once I get it published. Would anyone here be interested? Thanks, -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: English native speaker wanted

Wow so many people writing me to offer their help! Thanks everyone, I will get back to you soon. Dan On Wed, Sep 16, 2020 at 12:28 PM Dan-George Uza wrote: > Hello, > > I'd like to publish a booklet about the sundials in my area... and I've > decided that it's going to be in Engli

Sundial website template with map

A happy new year to all of you! I know that some national organisations (like the GSA in Austria or MCSE in Hungary) display their national sundial catalogue on their website in an embedded Google Map. Can you please recommend a template for such a website - preferably cheap or even free?

Books about Sundials in Romania

ctly from Amazon (.com, .co.uk, .de, .it etc.) Best regards, -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

The German 2021 Sundial Conference - an Afterthought

meeting. PS: If you would like to know more about the local sundials, I highly recommend the new book "Sonnenuhren in Birkenau" ("Sundials in Birkenau"). It's also in English and French, available via i...@sonnenuhren-birkenau.de -- Da

Sun mirror in Norway

Hello, Not really a sundial, but interesting! https://edukalife.blogspot.com/2015/09/the-giant-sun-mirrors-of-rjukan-amazing.html -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: A mis-aligned vertical dial

Dear all, In his book "Sundials Old and New", A. P. Herbert contends that rotating a vertical dial by 15 degrees towards East (i.e. gnomon pointing 15 deg. West of North) will switch it to Summer Time. Writing that this is against all theory, but works quite well, he calls this "the housewife's

Astrolabe auction

Dear all, Mishail Ivanov informed me of this auction for a Persian astrolabe: https://www.liveauctioneers.com/item/123871365_persian-astrolabe-c-17th-century -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: U.S. Senate approves bill to make daylight saving time permanent

n so, I hope the plans proceed. It will >> certainly simplify the my designs for Civil Time sundials and Equation >> Of Time signage. >> >> Cheers, Steve >> >> ----------- >> https://lists.uni-koeln.de/mailman/listinfo/sundial >> >> --- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

New sundial book (in French)

Dear all, I've learned about Denis Savoie's new sundial book which was published a couple of months ago and I though I'd let you know. "Une Histoire des cadrans solaires en Occident" https://www.lesbelleslettres.com/livre/9782251452319/une-histoire-des-cadrans-solaires-en-occident Cheers, Dan

Right ascension on sundials

Hello, Are there sundials showing the Sun's right ascension? Can you please post a photo? Thanks! Dan Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Shadow art

Hi, Not quite sundials but interesting nevertheless. http://kumiyamashita.com/light-shadow -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Norths align in the UK

Hello, This is interesting: https://www.ordnancesurvey.co.uk/newsroom/blog/magnetic-true-grid-north-align-over-great-britain Cheers, -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Largest stone sundial?

Hello, Does anybody know what the largest one-piece stone sundial in the world is? Thanks, -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial

DeltaCad has been discontinued

. Best wishes, -- Dan-George Uza --- https://lists.uni-koeln.de/mailman/listinfo/sundial