Re: Worldwide project EarthLAT1200.org
Dear Frank, in the context of cataloging thousands of sundials in Germany, Austria, and Switzerland we came to the following abbreviations for sundials of type II: i) WOZ(G) Here, G is for the city of Görlitz, which is located 15° E. To designate the correction during DST we wrote: WOZ(G)+1 This abbreviation is used in the printed location compilation (released back in 1994): Sonnenuhren - Deutschland und Schweiz (ISBN 3923422121). ii) WOZ(15°) / WOZ(15° ö.L.) As Görlitz is a city in Germany, people from Austria and Switzerland would not be so happy with it to see it for their sundials. Therefore, this more neutral version was chosen later. The correction during DST can be designated either as WOZ(15°)+1 or WOZ(30°). In the Austrian sundial sites compilation it is written simply as: WOZ(15) Throughout gnomonica.de (presumed to be the largest database of sundial locations) we use: WOZ(15° ö.L.) ö.L. is the abbreviation for eastern longitude. Best regards Daniel Am 02.12.2019 um 16:23 schrieb Frank King: Dear Kurt, Many thanks for your help. I shall try to remember Gmünd as an important place and, like Greenwich, it begins with 'G' :-) You have four abbreviations: WOZ, MOZ, MEZ, MESZ We agree that the English equivalents are LAT, LMT, CET, CEST. My thesis is that we need two more names for times. Here is why... Suppose you have three sundials at 10° E (in Hamburg?) which is 5° west of Gmünd. Sun time in Hamburg is therefore 20 minutes earlier than sun time in Gmünd. Sundial I: this is a traditional sundial. It shows WOZ/LAT. It is 20 minutes early compared with a traditional sundial in Gmünd. Sundial II: this allows for 5° of longitude difference and shows WOZ/LAT at Gmünd. We have no simple description for this in German or English? Could we call it GOZ for Gmünd Ortszeit?!! Unfortunately, this would not be understood by anyone except you and me! Sundial III: this is a modern sundial with analemmas as hour lines and it could be set up to show MOZ/LMT at Hamburg OR it could be set up to show MEZ/CET (which is MOZ/LMT at Gmünd) and, of course, it could alternatively show MESZ/CEST. Summary: we can describe the time on Sundial I or Sundial III (all three versions) but I want to describe the time on Sundial II. Most new sundials in the USA and many new sundials in England show 'WOZ/LAT on the reference meridian'. I find it strange that there is no well-known description. Very best wishes Frank On Sat, 30 Nov 2019 at 19:02, http://gmail.com>> wrote: Dear Frank, I think the most important thing is: WOZ (LAT) does not comply to an absolute position: it always defines the local time defined by the local Sun position only. So WOZ (LAT) in Grieskirchen is different from WOZ (LAT) in Greenwich or from WOZ (LAT) in Gmünd/Lower Austria which is exactly at 15° East meridian. Whereas MEZ is defined as MOZ at the 15° East meridian. WOZ, MOZ, MEZ, MESZ just exist in the German language. I did not know about the other meaning of WOZ resp. FET in international terms. I think it is "semiofficial". The longitude offset from 0° in my terms is calculated by the EoL - the equation of longitude: EoL = LONGITUDE [°] / 15° * 60 min. We all know about the second parameter which is the EoT - the equation of time: EoT is about +/-15 min depending on the season. And finally: LAT = UTC + EoL + EoT. Yes, there are another abbreviations running by sundial builders and time keepers and so. Regards Kurt --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
limit increased to approx. 1 MB
Dear members of the sundial mailing list! The limit for the size of an e-mail to the sundial mailing list has been increased now to 1 MB (plus a few bits more). The great majority of responders agreed to this change. As it was asked and as it might be interesting for all subscribers: There is a searchable archive of the contributions to the sundial mailing list:https://www.mail-archive.com/sundial@uni-koeln.de/ <https://www.mail-archive.com/sundial@uni-koeln.de/> Best regards Daniel Roth, sundial mailing list --- https://lists.uni-koeln.de/mailman/listinfo/sundial
maximum size of e-mails to sundial list including attachments
Dear members of the sundial mailing list! As I'm seeing more often that e-mails to the sundial mailing list are being blocked because of the size of the attachments I would like to remind you that there is a limitation of the accepted size of messages to the list, which is 290 kB. We agreed on this size several years ago, because bandwidth for many of us was low. Nowadays this might not be the case anymore for most of us. Attached images to an e-mail might be very helpful and informative. However, resizing down the images is sometimes difficult with the mentioned limitation. Please let me know your thoughts about this, whether we shall increase the limit now to e.g. 1 MB. Thank you all for your valuable contributions to this list, which I founded back in 1996! Best regards Daniel Roth, sundial mailing list --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: DMARC Wrapping.
Dear All, As the list administrator I'm writing to you that the DMARC topic is annoying a lot of mailing list users. Some explanations are given here: https://wiki.list.org/DEV/DMARC This sundial mailing list is currently hosted by a Mailman version 2.1.29 installation (I have no influence on this). Yet, I could not dive into the topic and the implications of changing settings in the Mailman software. Before changing any setting, you as a member of the list would have to check that you are sending to the sundial mailing list from the address with which you have subscribed to the list. You can check this here: https://lists.uni-koeln.de/mailman/listinfo/sundial Best regards Daniel Roth, sundial mailing list Roger schrieb am 11.09.2018 05:31: > > We are all frustrated by the overhead on these DMARC wrapped messages. The > emails generally contain valuable information like Kevin Karney’s link. Why > are these massages “not DMARC compliant?” Generally because the sender has > changed their email address. Perhaps they contain hypertext. Perhaps it is > the nanny state insisting on things that restrict freedom “for your > protection”. My advice is to seek the content and ignore the overhead. Check > the properties and source for your typical emails. They also have a lot of > similar but hidden overhead. I enjoy the benefits but still “rage, rage > against the fading of the light”*, the enlightenment we all receive from > these postings. > > > > Thanks Kevin for sharing such an excellent study on the equation of time. > https://Equation-of-Time.info with hypertext removed > > > > Regards, > > Roger Bailey > > Walking Shadow Designs > > > > *“Do Not Go Gently..” Dylan Thomas > > > > > --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: map of sundial distribution in Germany
The database with the locations of the sundials in Germany and Switzerland is available online. However, until a printed version is published, you need to to make a down payment on this book in order to gain access to the online database at http://gnomonica.de A description on how to get access is given here (in German only): http://gnomonica.de/dokumente/mitteilungen_119_S.32-33.pdf Gian Casalegno schrieb am 27.10.2016 15:44: > From a Google translation of the newspaper text it seems that about 13,000 > sundials are registered in Germany. > Looking at Sundial Atlas I can only find 1,488 registered dials. > > > What a pity that so many sundials are only in a national restricted archive > that cannot be accessed asaik by all the dialists in the world ! > > > Gian Casalegno > > > 2016-10-27 15:30 GMT+02:00 Daniel Roth <mailto:r...@infraroth.de> >: >> Dear All, >> >> Based on data from the German sundial association (Deutsche Gesellschaft für >> Chronometrie e.V. - Fachkreis Sonnenuhren) the national weekly newspaper Die >> Zeit has derived an illustrated map of the distribution of the sundials in >> Germany: >> >> http://www.zeit.de/zeit- >> <http://www.zeit.de/zeit-magazin/2016/42/sonnenuhren-otto-seile-deutschlandkarte> >> magazin/2016/42/sonnenuhren-otto-seile-deutschlandkarte >> >> Best regards - >> - Daniel Roth, sundial mailing list >> >> >> --- >> https://lists.uni-koeln.de/ >> <https://lists.uni-koeln.de/mailman/listinfo/sundial> >> mailman/listinfo/sundial >> > --- https://lists.uni-koeln.de/mailman/listinfo/sundial
map of sundial distribution in Germany
Dear All, Based on data from the German sundial association (Deutsche Gesellschaft für Chronometrie e.V. - Fachkreis Sonnenuhren) the national weekly newspaper Die Zeit has derived an illustrated map of the distribution of the sundials in Germany: http://www.zeit.de/zeit-magazin/2016/42/sonnenuhren-otto-seile-deutschlandkarte Best regards - - Daniel Roth, sundial mailing list --- https://lists.uni-koeln.de/mailman/listinfo/sundial
update request from list owner
Dear sundialists! If not done yet, please update your e-mail address book entry for the sundial mailing list address: Replace sund...@rrz.uni-koeln.de by just sundial@uni-koeln.de Thank you! The old address might not work anymore at some point in future. Best regards and thank you all for your valuable contributions to my list for sundialists! Daniel Roth, sundial mailing list --- https://lists.uni-koeln.de/mailman/listinfo/sundial
recent discussions / message from the administrator
Dear subscribers of the sundial mailing list! Currently we're faced with some heated discussions only peripherically connected with the topic sundials with its also interdisciplinary facets. Before people now tend to unsubscribe from the list, I'm asking everyone to continue with comments to messages provoking reactions after some days earliest and addressed only to those who involved themselves into the discussion, which took place. Maybe, it is also a good idea to write answers as a draft first and wait some days and check whether its worth to send the draft at all. I'm grateful over all these years that so many authorities from all over the world are contributing to this list I founded in 1996 and I don't want that the status of this sundial mailing list degrades! Thank you all for your valuable and continuing contributions! Best regards - - Daniel Roth, Cologne, Germany, administrator of the sundial mailing list --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: standard meridian list
Görlitz - 15 deg east Donald Christensen schrieb: I'm trying to find a list of cities and the standard meridian they set their clock to. Example Brisbane - 150 deg east San Fransisco - 120 deg west Paris - 15 deg east London - 0 deg -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorized use of this email is subject to penalty of law. So there! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
new link added to sundial links
Hello, I would like to point you to the most recent link on my page of sundial links (http://www.infraroth.de/slinks.pl): ...: a practical introduction to accurate gnomonics (PDF, by Denis Roegel) Best regards - - Daniel, sundial mailing list --- https://lists.uni-koeln.de/mailman/listinfo/sundial
FW: Computer Aided Dialling: progeCAD Smart
I'm sending this for Carl Sabanski: -Original Message- From: Carl & Barbara Sabanski [mailto:[EMAIL PROTECTED] Sent: Saturday, December 29, 2007 11:31 AM To: Sundial Mailing List (E-mail) Subject:Computer Aided Dialling: progeCAD Smart Sunny Day! A little while ago I wrote about a CAD program that was very similar to AutoCAD but was available for free. A new version was set to come out since last spring. Well, it is available as of today. You can get progeCAD Smart at: http://www.progesoft.com/compra/index.asp?left=prodotti/eng_progecad2008smart&abspage=1&lang=eng Lots of new features and it looks like it also has limited 3-D capabilities too. I have installed it but have not worked with it very much yet. It will definitely have a steeper learning curve than DeltaCad but there is no comparison. The download is well over 80 Mb. For all you DeltaCad fans there is a new web site called the DeltaCad Users Group that features a Forum. You may want to participate. You will need to register to access all parts of the Forum. You can visit it at: http://dcaduser.itrello.com/ Happy Dialling! Carl Sabanski www.mysundial.ca Get "Hooked on Gnomonics"! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
+++ missed postings +++ (corrected address)
Dear list audience, if someone posts a message to this list and this message doesn't appear on the list within the next day, this can have the following reasons: a) The message is larger than 50 kB (the subscriber community chose this as the limit). b) The sender is not a member of the list (check this if you have several addresses). c) The addressee was not sundial@uni-koeln.de (but e.g. [EMAIL PROTECTED]). d) The message was categorized as spam and wasn't marked as non-spam by the moderator (this can accidentally happen because there are too many spam messages, which cannot be checked individually all the time). If you have observed your e-mail not getting posted, check options a) through c). Otherwise contact me at [EMAIL PROTECTED] or [EMAIL PROTECTED] By no reason I, the moderator and founder of this list, will censor any postings! Best regards - - Daniel Roth, sundial mailing list (Cologne, Germany) --- https://lists.uni-koeln.de/mailman/listinfo/sundial
+++ missed postings +++
Dear list audience, if someone posts a message to this list and this message doesn't appear on the list within the next day, this can have the following reasons: a) The message is larger than 50 kB (the subscriber community chose this as the limit). b) The sender is not a member of the list (check this if you have several addresses). c) The addressee was not sundial@uni-koeln.de (but e.g. [EMAIL PROTECTED]). d) The message was categorized as spam and wasn't marked as non-spam by the moderator (this can accidentally happen because there are too many spam messages, which cannot be checked individually all the time). If you have observed your e-mail not getting posted, check options a) through c). Otherwise contact me at [EMAIL PROTECTED] or [EMAIL PROTECTED] By no reason I, the moderator and founder of this list, will censor any postings! Best regards - - Daniel Roth, sundial mailing list (Cologne, Germany) --- https://lists.uni-koeln.de/mailman/listinfo/sundial
password / language setting
Hello all, as I described earlier, on https://lists.uni-koeln.de/mailman/listinfo/sundial click the button at the bottom (with e-mail address entered or not in the field to the left). Either click on 'Remind' or 'Email My Password To Me' on the following page. Each page has and had a select box for the preferred language. As some of us still had problems finding the switches, I've manually set the preferred language to 'English (USA)'. Please try to avoid further messages concerning passwords, languages etc. to the list audience. Please address these matters instead to private addresses, e.g. to mine: [EMAIL PROTECTED] Thanks, Daniel --
AW: RE: Just testing MailMan
Hi all, you can set your preferred language within the web interface (no need to use a translation tool): https://lists.uni-koeln.de/mailman/listinfo/sundial Enter your e-mail address in the field at the bottom, click the button right to this, enter your password or click the button to have the password sent to you, change the preferred language, submit the changes by clicking the appropriate button. Hope that helps. Regards - - Daniel > >Hi Jack, > >I did the same and then transliterated with "google language" the note that >bounced back. It said that I was already subscribed. I guess we were >grandfathered in, appropriate in my case. > >Roger Bailey > >-Original Message- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] Behalf Of Jack Aubert >Sent: January 17, 2006 8:04 PM >To: sundial@uni-koeln.de >Subject: Just testing MailMan > > >I followed the instructions, and supplied my name and a password. Mailman >replied in German, which I can understand a little but not really enough to >know if I was accepted or bounced so I am trying this post to see. > >Jack > > >-- > > >-- --
Re: mailing list moved to Mailman
Dear Fred, dear all, please follow the instructions of the given web site and click the button at the bottom. On the following page you can let your password being mailed to you. With your e-mail address and password you can then log in and change e.g. your preferred interface language. If you have questions, don't hesitate to contact me! Regards - - Daniel Fred Sawyer schrieb: Daniel, The website requires a password - but those who are already subscribed do not have a password. I tried to re-subscribe and my message was bounced. Will existing members get a password assigned? --
mailing list moved to Mailman
Dear list members, as there were no concerns from your side, I've moved the sundial mailing list from the Majordomo software to Mailman, which offers a web interface for subscription and administration matters. This makes life surely easier. So far, I'm not familiar with Mailman, but it looks quite easy to understand. Every member can maintain his or her subscription at the web site: https://lists.uni-koeln.de/mailman/listinfo/sundial Mailman comes also with an archiving functionality, which I have switched on. You can reach the archive via the link above. Please note that the address [EMAIL PROTECTED] is no longer valid. Please write to my personal address if you have individual questions. Furthermore, please note that you can address the list now shorter by sundial@uni-koeln.de though the old address with rrz in it is still working. Best regards - - Daniel Roth (Cologne, Germany) N.B. Thank you all for the constructive e-mails! I haven't answered individually. --
Ten years sundial mailing list / change from majordomo to mailman
Dear Sundial List Members! A Happy New Year also from my side to all of you! 2006 is the year in which this mailing list will become ten years old. On the 15th of February in 1996 I had the sudden idea that a mailing list for sundial related topics could be a good idea. I am glad that this mailing list survived for such a long time in this rapidly changing era for media and that so many people from all over the world joined this list and contributed many, many valuable e-mails! It is time now to change the mailing list software, which enables this service kindly provided by the University of Cologne. The software currently running this list is Majordomo. Administering a mailing list via Majordomo is a tedious task. E.g. when people change their e-mail address sometimes they forget to unsubscribe from this list causing a lot of e-mail traffic when the e-mail account is no longer existing. Also, we could allow more easily for changes to more conveniences. Therefore I want to suggest to follow a recommendation of the University to move from Majordomo to Mailman. There should be no constraints during and after the change. The address to which members send their contributions will remain the same. Just subscription matters will have to be addressed to another e-mail address or to a web form. If you have objections against this change, please drop me a line to my personal e-mail address. Best regards - - Daniel Roth, sundial mailing list -
Re: Sundial List Strange Reflector
Hello, sorry for not replying concerning the strange reflection problem. I was on vacation and could not help. Please tell me whether the problem still exists. Best regards - - Daniel Roth, sundial mailing list Roger Bailey wrote: If you have been getting messages recently from the sundial mailing list, you will be aware that there is an annoying duplication of messages. We get the original message and then a duplicate with a virus scan message added. Your email address is in the middle of all the address headers on the duplicates. I suspect that messages coming to you are being reflected back to the sundial list and being reposted. This annoying strange reflection has been going on for a couple of weeks. Did you join the list a couple of weeks ago or make changes to your virus protection or firewall. Could you check with your ISP. I will forward to you correspondence I have had with star.net.uk who seem to be servicing your euromacs.com service provider. Sorry to pester you on this but your address seems to be in the middle of this strange reflector problem, the only address common to the "who sundial" list of subscribers and the duplicate message headers. I have not sent this not to be posted on the list but have sent a copy to the list owner, Daniel Roth. Regards, Roger Bailey N 48.6 W 123.4 and an active subscriber to the sundial mailing list for over 10 years. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk -
[no subject]
Received: from priv-edtnes46.telusplanet.net (defout.telus.net [199.185.220.240]) by mail1.rrz.Uni-Koeln.DE (8.13.1/8.13.1) with ESMTP id iBOHDXX3006987 for ; Fri, 24 Dec 2004 18:14:13 +0100 (MET) Received: from new ([142.173.103.93]) by priv-edtnes46.telusplanet.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with SMTP id <[EMAIL PROTECTED]> for ; Fri, 24 Dec 2004 10:13:32 -0700 From: "Roger Bailey" <[EMAIL PROTECTED]> To: "Sundial Mail List" Subject: Christmas EQT Date: Fri, 24 Dec 2004 09:13:55 -0800 Message-ID: <[EMAIL PROTECTED]> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: by amavisd-new X-Spam-Level: * X-Spam-Status: LOW ; 14 X-Spam-Report: DNS_FROM_RFC_POST,FORGED_RCVD_HELO,SPF_HELO_PASS,SPF_PASS X-Scanned-By: MIMEDefang 2.48 on 134.95.19.44 The Equation of Time is zero today so Christmas is a great time to give, receive or set sundials. There is less explaining to do. Today's EQT is pretty close to a true zero as both contributing factors are close to zero. The ecliptic tilt effect was zero when the declination was greatest, on the solstice, 21 December. The elliptical orbit effect will be zero on 2 January at perihelion, when the earth is closest to the sun. The small residuals cancel each other today. For a better explanation see www.analemma.com. Never confuse ecliptic with elliptic or analemma with analemmatic! Are the dates of perihelion and solstice close at this time by coincidence or is there some orbital resonance bringing them together? Precession causes the pole star to change. Does precession also change the close relationship between perihelion and the solstice and therefore the Equation of Time? Celebrate the Return of the Sun! Roger Bailey Walking Shadow Designs N 48.6 W 123.4 -
administrative message
As e-mail addresses change from time to time a lot of addresses, which are in the address list of the sundial mailing list aren't valid any longer. After sending this e-mail I'll remove those addresses, which caused a bounce due to an unknown user error on the recipient's host system. If you feel during the next days that your address may have been removed accidentally, please check your subscription by sending who sundial in the body of an e-mail to [EMAIL PROTECTED] (instead of sending a test message to the whole list). Thank you for joining the sundial mailing list! Best regards - - Daniel Roth -
Web Gnomonices n� 6, May 2004
Dear Friends, Web Gnomonices n° 6, May 2004, is on line on my site www.nicolaseverino.it The contents: Nicola Severino, L'orologio solare di Mouzon Ardennes; Imma Cecere, Frontespizi gnomonici; Danieli Sanna, Gnomonica sarda: fabricaus una meridiana; Giacomo Agnelli: Cartoons, La meridiana di Maiorca; Alessandro Gunella, Due proprietà geometriche delle linee orarie italiche; Riccardo Anselmi, Il convegno internazionale della BSS ad Oxford. English summary: N.Severino, The sundial from Mouzon Ardennes; Imma Cecere, The gnomonic covers of ancient books; Danieli Sanna, Building a sundial in Sardegna language; A. Gunella: the geometry of italian hour lines; R. Anselmi: the BSS Oxford conference. Nicola Severino Via Lazio 9 Roccasecca Stazione FR Italy [EMAIL PROTECTED] [EMAIL PROTECTED] http://it.groups.yahoo.com/group/webgnomonices [EMAIL PROTECTED] http://groups.yahoo.com/group/igbulletin/ [EMAIL PROTECTED] http://groups.yahoo.com/group/meridiane/ -
message sent regarding the Newsletter of the Asociacion de Amigos de los Relojes de Sol
the message sent before should have got the subject 'RelojesDeSol Newsletter release'. Anselmo Perez Serrada ([EMAIL PROTECTED]) kindly asked me to send this message to the list as it was filtered out by the majordomo software due to some keywords. Unfortunately the subject didn't come through. Best regards - - Daniel, sundial mailing list -
Re: sundial list operation: reply style changed!
A different problem has bothered me, in this spam-ridden email world we all live in. Mail from the sundial list was originally addressed such that the From field was clearly the List. Since the last change, and under the new mode, the From has been the originator's personal name and address. This makes it difficult to automatically filter incoming mail into a Save folder. I have had to manually add each and every List member's name to my filter rule, or their contribution stays behind in the slop bin. I run through that bin quickly, several times a day, deleting everything, and I'm sure I have missed a relevant email on several occasions. It would be very valuable if the From field simply had either the List address, sundial@rrz.uni-koeln.de or a name, like [Sundial-List] (or both.) The Reply-to field could be either the List or the originator, as it is now. Dave, it isn't necessary to put a marker into the subject or wherever (people could of course directly send to [EMAIL PROTECTED] instead of carbon-copying to it). You just need to expand the filter to check also for sundial@rrz.uni-koeln.de in the Cc field. Works here with my client perfectly. - Daniel Discussion? Dave 37.277N 121.966W -
sundial list operation: reply style changed!
Dear list members, from now on, when you perform the action reply in your e-mail client, not the sundial list (sundial@rrz.uni-koeln.de) will be addressed but the sender of the e-mail to which you reply. Now you have to change the addressee to sundial@rrz.uni-koeln.de or insert the mailing list's address into the Cc field. Once, we had many discussions on this list about this topic and there was a majority decision to have the reply style that way that sundial@rrz.uni-koeln.de is addressed in the reply case. I now have changed the reply style against this former decision as the disadvantage of injuring privacy with falsely publicly addressed contents is evident. I hope that the traffic with your valuable contributions doesn't slow down with this new style. Discussions could end now earlier as people don't Cc their e-mail to the list. My recent decision is not irrevocable but let us try it this way for some weeks. Best regards - - Daniel Roth, sundial mailing list Cologne, Germany -
Re: Birthday-once more
are we sure, as the date Feb 19, is according to the Julian calendar. I am afraid that we should use the Gregorian calendar so we should add 12 days to the date of the birth of Copernicus. As it was before the calendar revolution the date shouldn't be converted. It was the official date in that time. In my opinion, as long as we don't want to connect the date with astronomical occasions, there is no necessity to convert it. Best regards - - Daniel Roth -
International Gnomonic Bulletin (IGB) n� 05 February 2004
Dear Friends, the International Gnomonic Bulletin (IGB) n° 05 February 2004, and Web Gnomonices! (WG) n° 02 - 2004 are posted on line at IGB and WG sites. the IGB Contents: IGB n° 5: Letters; Kircher Sundial from Archivum Monacense Societate Jesus from Munchen; Sonnenuhren of Kaspar Schot from Organum Mathematicum, 1668; Medieval sundial from Lihou; Archeognomonics: more pocket sundials from archaeological escavations (N. Severino); Louisbourg dials; Monastic sundial from St. Cuimin's Church (Noel O'Neill); And The Sawyer Dialing Prize (Fred Sawyer) Web Gnomonices contens: Denis Savoie, Passaggio al meridiano e meridiano (trad. di Riccardo Anselmi) Giacomo Agnelli, La meridiana catottrica di S. Cristo a Brescia Nicola Severino, Due frammenti di meridiane romane nel museo di Aquino Cartoons di G. Agnelli: La precisione assoluta You can download its for free, like members. For problems to download or registrations to Yahoo sites, please contact me. I can send the files with e-mail message. Thanks for suggestions. Nicola Nicola Severino Via Lazio 9 Roccasecca Stazione FR Italy [EMAIL PROTECTED] http://it.groups.yahoo.com/group/webgnomonices [EMAIL PROTECTED] http://groups.yahoo.com/group/igbulletin/ [EMAIL PROTECTED] http://groups.yahoo.com/group/meridiane/ -
reply-style
Dear subscribers of the sundial mailing list, again the reply-style is the subject of my message: Please consider each time you reply to a message in this list whether it is intended to the complete audience of the sundial mailing list or if it is more suitable to reply only to one person. Thank you! Regards - - Daniel Roth, sundial mailing list N.B. To change your e-mail address for the subscription, send from your old address to [EMAIL PROTECTED]: unsubscribe sundial And from your new address: subscribe sundial (each time in the body of the message; subject doesn't matter) -
R E S U L T
Dear subscribers of the sundial mailing list! On the 13th of April I called for a vote between the two possible Reply-To styles. Until the end of the voting period, 27th of April, I received 176 votes (turnout approx. 47%): Votes for the current style: 92 Votes for the "old" style: 61 Abstentions: 23 So, democratically we'll keep the current style, which means that the default Reply-To address is [EMAIL PROTECTED] Best regards - - Daniel Roth -
V O T E F O R R E P L Y S T Y L E
Approved: phsun,dial Dear subscribers of the sundial mailing list, some time ago I changed the 'Reply-To'-field in the header of the e-mails reflected by the majordomo mailing list software to the address [EMAIL PROTECTED] For more than five years the 'Reply-To'-field was set to the address of the sender. Over the past years several people from the list asked me to change this field to the address [EMAIL PROTECTED] This change initiated several long threads about advantages and disadvantages of this feature. I proposed to ask for a democratic decision some weeks later when everyone on the list had the possibility to get used to this. "Old style" Reply-To: Pros: - private answers will not accidentally go to all subscribers - no need to manually remove the address sundial@rrz.uni-koeln.de from the list of addressees if an answer is intended for one or few persons only Cons: - an unknown number of interesting answers and contributions will only go to the one who sent the question - to include the list community one has to manually add sundial@rrz.uni-koeln.de to the addressees "Current style" Reply-To: sundial@rrz.uni-koeln.de Pros: - the subscribers might not be excluded from interesting answers and contributions - there is no need to manually add sundial@rrz.uni-koeln.de to the addressees Cons: - accidentally mails intended for one person only will be read by the hundreds of subscribers - no automatic responses will be sent to the subscribers The intention of this mail is not to initiate another long discussion thread. If possible from your point of view, please just vote! It's up to you to evaluate the pros and cons of the contrary styles. You have one vote! Please send it until Saturday, 27th of April 2002 (12:00 pm CEDT). Please switch back to the old style! Please keep the current style! Abstention from voting If your mailing program doesn't format HTML: Please switch back to the old style: Send an e-mail with the subject 'old' to [EMAIL PROTECTED] Please keep the current style: Send an e-mail with the subject 'current' to [EMAIL PROTECTED] Abstention: Send an e-mail with the subject 'abstention' to [EMAIL PROTECTED] Thank you for the thousands of contributions to this list I founded in 1996 - I'm impressed by all the knowledge and expertise that you have in gnomonics and other fields and that you share it on "my" and our list! Best regards - - Daniel Roth, sundial mailing list N 51 E 7
message from the listowner: N E W R E P L Y A D D R E S S
Dear Subscribers! Please note that I changed the default reply-to address to [EMAIL PROTECTED] If you press reply in your mail software the sundial mailing list will be addressed instead of the author of the mail to which you reply. Thank you for your contributions to this list! Regards - - Daniel Roth, sundial mailing list -
Peru (sent by Piers Nicholson)
If anyone knows of (1) the location of any sundials in Peru or (2) the names of anyone in Peru interested in sundials I would be most grateful to hear from them Best wishes to all for 2002 Piers Nicholson
about the list
from time to time it seems to be useful to give some hints about the technical aspects of this list: a) The address of the list is sundial@rrz.uni-koeln.de b) [EMAIL PROTECTED] can be contacted in case of problems. E-mails to that address are forwarded to me and not to the list. Please check your mailers settings whether you send to sundial or owner-sundial. c) To unsubscribe from this list please send in the body of an e-mail to [EMAIL PROTECTED] 'unsubscribe sundial'. d) To prevent that all readers of the list get annoying e-mails like 'Please unsubscribe me from this list!' such e-mails are filtered out if certain keywords like 'subscribe', 'unsubscribe', or 'help' appear. If you want to send an e-mail to the list with these words, please precede the word with e.g. an underscore '_'. e) To prevent that the subscribers of this list get spam, only e-mails get through the mailing list software, which come from a subscribed address. f) If you feel that sometimes there are too many messages coming from the list, you may find it useful to create a folder within your mailing program, in which messages from the sundial mailing list are sorted in automatically. Hope that helps. Thank you from all over the world for your useful and clever contributions to the sundial mailing list! Best regards - - Daniel Roth, sundial mailing list
last catalogs of german and swiss sundials
Dear Dialists, in the year 1994 the Deutsche Gesellschaft für Chronometrie released a catalog with detailed descriptions of about 6050 sundials in Germany and 2200 in Switzerland. You can get some more information on the catalog at http://www.infraroth.de/katalog.html. Now there are only a few copies left and it will take at least 3 years until the next edition will be available. If you would like to order one copy, please contact [EMAIL PROTECTED] Best regards - - Daniel Roth, sundial mailing list
Re: Catalog & Manual on CD
Scan each page and save as eps, tiff etc. that Illustrator will OPEN - as opposed to PLACE. Save as Illustrator PDF. A bit laborious but you should get there in the end. I would not recommend this as quality decreses and file size increases significantly. One may use the free programs GhostScript and GSview to easily convert any Windows document into PDF. Just print your document with a generic PostScript driver into a file and open it in GSview, then save it as PDF. You can download the software from http://www.cs.wisc.edu/~ghost/ - Daniel Roth
bounced messages
Dear Sundialists, for posting to the sundial mailing list please always use the e-mail address with which you have subscribed. Otherwise messages are bounced. Regards - - Daniel Roth, sundial mailing list
message from the list owner
As I'm going on vacation for some weeks, here some instructions if problems occur: Unsubscribing: Send 'unsubscribe sundial' in the body of an e-mail to [EMAIL PROTECTED] Your e-mail doesn't reach the list: Check from which address you are writing by sending 'who sundial' in the body of an e-mail to [EMAIL PROTECTED] You have to use the same address with which you've subscribed. This is to prevent spam getting to the list. Another reason can be that you have some keywords like 'subscribe', 'unsubscribe', or 'help' in your message text. This is to prevent annoying subscribers with messages concerning subscription from senders who don't know whom to contact in case of a problem. Changing the e-mail address: From your old address send 'unsubscribe sundial' and from your new address send 'subscribe sundial' in the body of e-mails to [EMAIL PROTECTED] In the next week I'm still reachable for questions: [EMAIL PROTECTED] Best regards - - Daniel Roth
Re: Apparent solar altitude calculation
Hello Fernando, I'd like to be able to calculate the apparent solar altitude, day by day from January first to December 31 on a hourly base from 7 AM to 6 PM. Do you know if any of the calculators available on the Internet can provide this? I have a calculator for azimuth and elevation of the sun: http://www.infraroth.de/index.html?nav_p.html,aziele.html But unfortunately its user interface is in german and it will not automatically do the job for a complete year. As it is written in JavaScript you could download it and expand it to the necessary convenience. Regards - - Daniel Roth
Digital sundial
Hi, today I received my digital sundial by Digital Sundials International (www.digitalsundial.com). It is a fine piece and precisely manufactured. The product isn't cheap but it is a noble instrument and the embodiment of a resourceful idea! The design is of technical clarity and it is a fascinating toy for every gnomonist! - Daniel Roth
Fwd: Anglo-Saxon sundials
Hi, I got the following question. If one can help please CC to Martha Drummond <[EMAIL PROTECTED]> Regards - - Daniel I am trying to reach the BSS Sundial Mailing list. Forgive me if I have the wrong address. I would like to find out if there are maps, guidebooks, etc to Anglo-Saxon sundial sites in England. Martha Drummond
F. L. West --- London / Stanley London
Hello, I forward two questions by Jerome Goggin ([EMAIL PROTECTED]) to the list. If one can help please reply directly to [EMAIL PROTECTED] - Daniel I would like to post the following questions on the Sundial Mailing List: #1.) I've noticed a number of folding sundials for sale on the auction site, eBay. Many bear the name "West" or "F.L. West --- London". Can anyone provide me with information about this company? If it is still in business, I would like their address. Incidentally, a few of these dials seem quite well made, while many others look pretty shabby. I wonder if some are counterfeit. #2.) I would also like to know about Stanley sundials. Their Internet address is http://www.stanleylondon.com/. Stanley uses the Union Jack to advertise its products and stamps them, "Stanley London". I contacted them, however, and found out they are not a British company at all but are located in California in the United States. Although their products look attractive, stamping them "Stanley London" is highly deceptive and irritates me greatly. If it says, "London", I expect it to be made in London, not the U.S.! Thank you very much for any information you can give me. Jerome N. Goggin Internet: [EMAIL PROTECTED] Snail Mail: 24 Green Street Claremont, New Hampshire 03743 USA
Re: Commercial Offerings
> However I am interested in announcements of books about sundials and related > subjects and a description or brief note about specific sundials. > > Commercial announcements better could be placed in Web sites and addresses > of such sites could be incorporated in the list of links. That's also exactly my opinion. - Daniel
! message from owner-sundial !
This message is sent for two reasons: 1st to remind how subscribing and unsubscribing works and 2nd to bring into discussion again the allowed length of a message including attachments. 1. To unsubscribe from the list send 'unsubscribe sundial' to [EMAIL PROTECTED] or click on this link: mailto:[EMAIL PROTECTED] sundial">unsubscribe sundial To subscribe to the list send 'subscribe sundial' to [EMAIL PROTECTED] or click on this link: mailto:[EMAIL PROTECTED] sundial">unsubscribe sundial You can only post to the list from the address with which you have subscribed. If your message is bounced, please use your other e-mail address or unsubscribe from your old one and subscribe again with your new one. Please do so because otherwise it always requires manual corrections by the list owner, Daniel Roth. 2. The length of a message is limited to 25 kB. Many subscribers still send messages, which are longer. This requires a manual intervention by the list owner. Please take into account that your attachment has to be downloaded by members, which may have only a 14.4 baud modem. Please vote for one of the following choices: mailto:[EMAIL PROTECTED] - keep at 25 kB">keep at 25 kB mailto:[EMAIL PROTECTED] - set to 50 kB">set to 50 kB mailto:[EMAIL PROTECTED] - set to 100 kB">set to 100 kB mailto:[EMAIL PROTECTED] - set to 200 kB">set to 200 kB mailto:[EMAIL PROTECTED] - set to no limit">set to no limit The deadline for your vote is Sunday, November, 19th. Thank you for your attention! - Daniel Roth, [EMAIL PROTECTED]
new ed. of a german sundial book released
Hi, a new edition of the german sundial book 'Faszination Sonnenuhr' by Arnold Zenkert has been released by Harri Deutsch. It contains now a CD-ROM with examples and photos. Take a look at http://www.infraroth.de/sufaq.html - Daniel Roth
RE: Sundial by Sir Christopher Wren
On Wed, 3 May 2000, Mac Oglesby wrote: > Philip Pattenden, Sundials at an Oxford > College. Oxford: Roman Books, 1979. ISBN 0950664405. 100 pages. Hi Mac, can you tell me how to get this book? Thank you. - Daniel
Re: graphic conversion
> that I get the best results in putting mathematical equations on the web by > composing the equations in Word using Equation Editor, printing to a > postscript file, converting > it to PDF format using Acrobat Distiller and then doing screen dumps to a > PICT file which is loaded using > Graphicconverter. The image is then trimmed and converted to GIF format > from within Graphiconverter. quite time consuming ... it is a pitty that none of these 'great' browsers support HTML 4.0 which has all those tags that are necessary for mathematical typesetting ... what did I hear, MS spent 100 million $ a year into the Internet Explorer ... :-(
Re: Sundial Mail List archive.
> If the messages from this mail list are archived, would someone > please tell me how to reach them? It's now on http://194.230.53.250 ASTRO ARCHIVE. You can choose sundial as the list on the search page. - Daniel Roth, sundial mailing list
large mails
Dear Gnomonists of this mailing list! I will check out if it is possible to discard mails larger than a certain size with the majordomo software which runs this list. So far I've found one parameter called maxlength which seems to do that job. I would set this value to 25 kB so that e.g. small image can be sent (at the moment the value for maxlength is set to 10 MB :-). Would this find agreement? Regards - - Daniel Roth, sundial mailing list
Re: Italian Hours
On Mon, 6 Sep 1999, Daniel Roth wrote: > Looks evident. But I remember that (4) and (5) corresponds to an solar > altitude of -(0 deg 16 '). This is due to the refraction (-34 ') and > the radius of the suns disk. Sorry, in the 2nd line it must read: altitude of -(0 deg 50 ').
Re: Italian Hours
> (1) Astronomical twilight begins (altitude = -18 deg) > (2) Nautical twilight begins(altitude = -12 deg) > (3) Civil twilight begins (altitude = -6 deg) > (4) Sunrise (altitude =0 deg) > (5) Sunset(altitude =0 deg) > (6) Civil twilight ends (altitude = -6 deg) > (7) Nautical twilight ends(altitude = -12 deg) > (8) Astronomical twilight ends (altitude = -18 deg) Looks evident. But I remember that (4) and (5) corresponds to an solar altitude of -(0 deg 16 '). This is due to the refraction (-34 ') and the radius of the suns disk. - Daniel Roth
info for this list
Dear sundial mailing list subscribers! There is a new info document for this list. This may help you with problems e.g. concerning subscription. You can retrieve this document by sending info sundial in a single line in the body of an e-mail to [EMAIL PROTECTED] Regards - - Daniel Roth, sundial mailing list
Attachments
Dear Dialists, thank you all for joining this list and for your contributions! Please keep in mind the information given in the first e-mail you've got after subscribing to this list. Esp. the third paragraph. - Daniel Roth, sundial mailing list Welcome to the sundial mailing list! This mailing list is for all who are interested in sundials and gnomonics. It was founded in February 1996 and has grown rather fast which I did not expect. Many sundial experts from around the world have subscribed and may assist you with your problems or questions. If you have information for other dialists, please post it to the list, e.g. if there is a new book about sundials. As long as a discussion might be interesting to other gnomonists please keep it up public i.e. make a copy to [EMAIL PROTECTED] To post a mail to all subscribers of the list, please send it to: sundial@rrz.uni-koeln.de The mails sent to the list should not be too large because there may be subscribers who use a modem to connect to their provider (so, no binaries please unless small in size). Please cite not the whole of a message but just the passage you refer to. Please send commands like 'who sundial' only to [EMAIL PROTECTED] and not to [EMAIL PROTECTED] Otherwise all subscribers of the list get this. Thank you! The list-owner has compiled a list of links to sundial related WWW-pages. You can access this list at: http://www.ph-cip.uni-koeln.de/~roth/slinks.html Yet there is no FAQ (Frequently Asked Questions) for this list - but I think it's a job worth to do. Coworkers are welcome! Regards - - Daniel Roth, [EMAIL PROTECTED]
ruby
Hello all, it was my fault, ruby tricked me by sending a message from this hotmail account. The message was kept from being sent to the list because the sender is not a member of the list. As this happens quite often because members of the list use other e-mail addresses than those with which they subscribed, it is a usual job for me to approve such e-mails. And because Fernando Cabral's name is known to me I didn't read the subject (the subject of such a rejected mail is not as easily visible as the one of a normal e-mail) and the contents of this e-mail. I'm sorry. Please ignore all the mails concerning this. This ruby person seems to be very sick. - Daniel Roth, sundial mailing list
Re: Dial web sites
Hello, there are a lot of links at http://www.ph-cip.uni-koeln.de/~roth/slinks.html Did you check that? On this page I concentrate mainly on sundials and do not include related sciences (like astrolabes and so on). If one has contributions, please e-mail me. As well as pointing out dead links. Regards - - Daniel N.B. Thanks to Steven Woodbury for the many links he sent to me!
message from the list-owner
Dear list members, among the subscribers of this list is a person who has some psychic problems. He or she writes stranges e-mails to some of us. The worst thing for this person is to be ignored. Please do so! I don't want to change the setup of this mailing list so that every single contribution to this list has to be approved by me. This would take a lot of my time and would slow down the communication within this list. The far most of the subscribers are not interested in mails about "Professor Rubys" problems. Please do not comment on this e-mail by sending to [EMAIL PROTECTED] If you really need to make a comment send it to me: [EMAIL PROTECTED] I have unsubscribed ruby from this list now. But I can guess that this person reappears with another name (it's just a hotmail.com account). By the way: To unsubscribe from this mailing list: unsubscribe sundial to be sent to [EMAIL PROTECTED] Majordomo is the software that runs this list. Please do not send commands to sundial@rrz.uni-koeln.de - they are filtered out but they cause additional work for me. There are about 350 subscribers to this list all over the world! I'm very happy that my idea of a mailing list about sundials was accepted by so many people! I wish you all the best for the coming year! - Daniel Roth, sundial mailing list N.B. This list is run on a computer at the University of Cologne, Germany.
28th conference of the Arbeitskreis Sonnenuhren (workgroup sundials)
28th conference of the Arbeitskreis Sonnenuhren (workgroup sundials) Date: May, 13th - 16th, 1999 Location: D-98693 Ilmenau, Hotel Tanne, Lindenstr. 38, Germany registration deadline: Jan., 31st, 1999 The conference includes lectures and an excursion to sundials in Thueringen. Primary contact: Arnold Zenkert, Seestr. 17, D-14467 Potsdam, Germany, Tel.+Fax 0331/2700468
DGC in the WWW
Hello, the German society for chronometry has now its official web page. The URL is http://192.41.20.246/dgc/ The pages are in German only. - Daniel Roth, sundial mailing list
Re: E-mail address request
> I would like to contact these three persons by e-mail. You can send the command who sundial in a single line in the body of an e-mail to [EMAIL PROTECTED] to get the answer. - Daniel Roth, sundial mailing list
Re: patent on a sundial (fwd)
Please address to sundial@rrz.uni-koeln.de and not to owner-sundial... -- Forwarded message -- Date: Sun, 30 Aug 1998 20:31:32 -0500 From: Mac Oglesby <[EMAIL PROTECTED]> To: Uncle John <[EMAIL PROTECTED]> Cc: [EMAIL PROTECTED] Subject: Re: patent on a sundial >Fellow sundial enthusiasts, > >Is it worth even considering getting a patent on a sundial? I imagine some >of you have done so. Would you do it again? > >John Hello John, Let me share my experience. About seven years ago I made a sundial which friends really liked and urged me to patent. Basking in their compliments, and since, in my brief career with sundials, I hadn't seen anything similar, I went to a patent attorney who (surprise!) encouraged me and offered to do a preliminary search for $500, payable in advance. Well, my $500 essentially purchased two words, "public domain." I also got a dozen sheets of paper - copies of expired patents wherein my "original" idea had been set forth. Since then, I've become much more aware of the incredibly rich history of sundials and the wide diversity of designs. Your dial may be unique enough to earn a patent, but it's an expensive process, and having a patent doesn't guarantee any monetary return. My two cents worth. I'd like to hear of others' experiences. Mac Oglesby
to Yvon Masse
If anyone can reach Yvon Masse, please tell her that it's not possible for me to answer her by e-mail. Her e-mail addresses [EMAIL PROTECTED] and [EMAIL PROTECTED] address don't work. - Daniel Roth, sundial mailing list
some hints concerning this mailing list
Hello, my name is Daniel Roth and I'm the "owner" of this mailing list on sundials. You can contact me at [EMAIL PROTECTED] Until 10th of August I'm on vacation. To minimize problems during this time I give some information on subscription and so on. If your e-mail address changes: First unsubscribe from your old address as long as you can send from your old address. To do so send 'unsubscribe sundial' in a single line in the body of an e-mail to [EMAIL PROTECTED] Then subscribe with your new address by sending 'subscribe sundial'. Never send subscription commands to owner-sundial. Try to avoid sending e-mails to owner-sundial if they should reach the sundial mailing list. If your e-mail to the sundial mailing list (i.e. to sundial@rrz.uni-koeln.de) does not appear it might be that you are sending the e-mail from an address with which you haven't subscribed. You can check this by sending 'who sundial' to [EMAIL PROTECTED] You can get information about this mailing list by sending 'info sundial' to [EMAIL PROTECTED] I hope that most problems can be solved by the above. Thank you for all the contributions to this list and for subscribing! I hope that you enjoy it and that this list helps to increase the knowledge about gnomonics worldwide! Kind regards - - Daniel Roth
Re: Help with Mac to PC exchanges
The problem in sending data files by e-mail is that standard e-mail can only handle files consisting of ASCII-characters which are described by 7 bit instead of 8 bit which are used by most file formats like programs and graphics files. The solution is to convert 8 bit files to 7 bit files (causing a slight increase in the file size). There are several standards to do so. E.g. mime, uucode or binhex. E.g. if you are using a Mac software as your e-mail frontend it might encode your 8 bit file using binhex which is quite uncommon in the world of PCs and UNIX. You should check what kind of decoding the receiver can do. To many of us this underlying mechanism is unknown because encoding and decoding is done by the e-mail frontend and then confusion is great when it does not work. You will find on almost any system all of the above mentioned en-/decoding methods. So, sometimes it is necessary to decode "by hand" with an external program. But this doesn't explain why it worked in one case with jpg and gif files. - Daniel Roth
Re: anybody use raytracing
> I've made the files available at > http://www.ph-cip.uni-koeln.de/~roth/movie.html Problems occured with the downloaded files. I've zipped them now and it should work. The surface property of the stone shown is not very diffusive. Therefore the light reflected into the observers eye is varying strongly in intensity. - Daniel Roth
Re: anybody use raytracing
On Wed, 17 Jun 1998, Doyle J. Groves wrote: > Sounds interesting. Could you perhaps make this movie available to the > group or at least email me a copy? > I've made the files available at http://www.ph-cip.uni-koeln.de/~roth/movie.html As I mentioned they are not what can be done. You'll need a FLC-player which can also be downloaded from the above address. - Daniel Roth
Re: anybody use raytracing
> There are free raytracing packages available that allow you to > describe a 3-dimensional object and render an image of it with > light sources placed at will. Has anybody used these to simulate > sundials? Seems like it should work. Yes, I tried it with POVRAY. I defined a stone and a long cylinder as the shadow caster in this ray tracing software. The necessary POV-files were generated by a program calculating suns azimuth and elevation to put the light source in the correct direction. The small movie I generated shows the figure 8 line "painted" by the shadow through one year for the same mean time each day. I think this is of great educational interest but so far I had no time to make more movies (including the numbers, lines and so on on a sundial). - Daniel Roth
Re: Stones to engrave sundials.
> Would someone please be kind enough to explain the procedure for > > 1. unsubscribing to this service > > and > > 2. subscribing to this service? > commands for the list procedure are to be sent to [EMAIL PROTECTED] commands can be: unsubscribe sundial [EMAIL PROTECTED] subscribe sundial [EMAIL PROTECTED] info sundial who sundial Hope that helps. - Daniel Roth, sundial mailing list
Forwarded mail....
Hello! Please send e-mails for the sundial mailing list to sundial@rrz.uni-koeln.de Funny pseudonym you've chosen: îòåæ Is it intended? - Daniel Roth, sundial mailing list -- Forwarded message -- Date: Tue, 26 May 1998 10:18:02 +0300 (IDT) From: îòåæ <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Can anybody help me with this question - In ancient literature there is a mention of midnight. How was the middle of the night determined? Thanks, Ronit Maoz.
bounced messages
Dear subscribers, for posting to the sundial mailing list please use the same address as the one with which you've subscribed. If this is not possible unsubscribe from the old one and resubscribe with your new one. Check the address you've subscribed with by sending who sundial in a single line in the body of an e-mail to [EMAIL PROTECTED] Then unsubscribe and rescubscribe by sending the following two lines in the body of an e-mail to [EMAIL PROTECTED] unsubscribe sundial your_old_address_here subscribe sundial your_new_address_here This procedure is necessary to prevent that the sundial mailing list is spammed by unwanted commercials etc. Thank you for your contrbutions to the sundial mailing list! - Daniel Roth, sundial mailing list
attachments
Dear list members, thank you for the contributions to the sundial mailing list! But please remember what was written in the info file that you've got after subscription. You can get the file by sending the single line info sundial in the body of an e-mail to [EMAIL PROTECTED] Regards - - Daniel Roth, sundial mailing list
Re: another sundial in Munich?
> 'Sonnenuhren Deutschland und Schweiz' (1974 edition) but could find it. Oh, it's not that old - it's from 1994. :-) Concerning the sundial: Have you asked Mr. Berger? ([EMAIL PROTECTED]) - Daniel Roth
Re: St.-Luc sundial
> However, I sure would be happy to hear from someone who has > actually seen the dial and can confirm that the outer rim containing the > hour markers is not a circle. To be told that the rim is an ellipse isn't > terribly convincing without additional information, such as size of major > and minor axes, for a circle is an ellipse, isn't it? I've been there - it is a nice trip by chair-lift from St-Luc to Tignousa. Some metres east you'll reach the analemmatic sundial. It is indeed one. There is a moveable gnomon (it's chained to prevent it from being stolen) and the hour points are in an ellipse. - Daniel Roth
who sundial
sorry, in my last e-mail it should of course read: (you can check this by sending 'who sundial' to [EMAIL PROTECTED]) ^-
bounced e-mails
Hello, since I changed the configuration of this mailing list in that way that it is only possible for members of the list to post to the list some of us get their e-mail to sundial@rrz.uni-koeln.de bounced. In most cases the reason is that the e-mail address you used to post is not exactly the address with which you subscribed to the list. Please send therefore e-mails for the mailing list from the address which you used for subscription (you can check this by sending 'who sundial' to sundial@rrz.uni-koeln.de). Or, if this is unconvenient, unsubscribe from the one and subscribe to the other address. Thank you - - Daniel Roth, sundial mailing list
info on this list
Hello, many of us have the problem that they receive unwanted advertising e-mails. To prevent that this mailing list is used for these so called spam mails it is now only possible for members of the list to write to sundial@rrz.uni-koeln.de Please, if one is still afraid to get unwanted e-mails caused by his or her subscription to the sundial mailing list you have to unsubscribe immediateley! To unsubscribe send 'unsubscribe sundial' as a single line to [EMAIL PROTECTED] Joining this mailing list is by your own risk - you cannot make anyone at rrz.uni-koeln.de responsible for getting spam e-mails. Thank you - - Daniel Roth, sundial mailing list
sundial exhibition in Germany
I just got the news that there is a sundial exhibition at Castle Eggersberg. It opened today (11th of July) and it can be visited until end of August. There will be sundials as garden objects made of stone, metal or brass. Such of type analemmatic, polar, spherical and so on. The castle is near Riedenburg in the Altmuehltal (southern Germany). For further details please contact Michael Kroll ([EMAIL PROTECTED]).
info on list
Hello, I've made a new info file for this mailing list. You can retrieve it by sending 'info sundial' as one line of the body of the e-mail to [EMAIL PROTECTED] There might be some new information for you in this file. Thank you - - Daniel Roth, sundial mailing list
Re: hemispherical - conical Greek-Roman sundial
> Can you tell me of other books, besides Gibbs, who give a good clear > explanation about those sundials? Karl-Heinz Schaldach recently has published a new book about Greek-Roman sundials. Unfortunateley it is in German language only. I give you the authors address by e-mail. His book was discussed in this mailing list already. - Daniel Roth
digital sundial
Hello, someone asked me the question below. I thought it could be of interest to you all. > My interest: a digital sundial. Is such a thing possible with Moire > gratings? Yes! [EMAIL PROTECTED] has developed such a kind of sundial. It consits of one regulary spaced grating and another one placed parallel to the first in a distance of about one centimeter (some sort of plexiglas inbetween). The second grating is not regualar. It is made in such a way that the sunlight casts digits on a plane depending on the hour angle of the sun. This kind of a digital sundial shows a different time every five minutes. Please contact Hans Scharstein for more details! Regards - - Daniel Roth, sundial mailing list
sundial mailing list now searchable
Dear Gnomonists, it's done - almost all mails ever posted to this sundial mailing list are now archived at reference.com, a service for searching and browsing in newsgroups and mailing lists. It can be accessed by pointing your HTML-browser to: http://www.reference.com/cgi-bin/pn/[EMAIL PROTECTED] I'm sorry that it took so long - the files had to be cut and prepared. You can also access the page from the sundial links page: http://www.ph-cip.uni-koeln.de/~roth/slinks.html Kind regards - - Daniel Roth
Re: highest sundial
> I am searching for the sundial with the highest geographical altitude > ( above sea level ) of your country. There was at least a temporary installation of a simple horizontal sundial at the south pole station. The height is 2835 m.
sundial list archived now at reference.com
- Reference.COM has begun archiving this list as of: Mar. 17, 1997 - Searchable archives for the lists are available at: http://www.reference.com/cgi-bin/pn/[EMAIL PROTECTED] - If you do *NOT* want your post archived at Reference.COM, include the following line as an email header or as the first line of your message: X-No-Archive: yes
Re: Astr Meeus (fwd)
-- Forwarded message -- Date: Tue, 4 Mar 1997 10:18:54 +0100 (MET) From: Daniel Roth <[EMAIL PROTECTED]> To: Thibaud Taudin Chabot <[EMAIL PROTECTED]> Subject: Re: Astr Meeus Hello, > The name is: Rick McMullan. I tried to find the name on the Internet, but > couldn't find it. Perhaps you have better sources. > The program has such a nice printed calendar with solar and lunar times and > other informations. > Thanks The name of the newer versions of his program is AstroCal. The latest version I have is 1.3 which is contained on the astronomy CD-ROM JUPITER. Regards - - Daniel Roth
Re: Astr Meeus
> I have a program Astro Meeus, ver.0.9. Once found somewhere on the > Internet, but forgot where. Does anybody know where and if there is a later > version? The program was renamed because Jean Meeus did not want his name to be used. If you give me the name of the author of ver. 0.9 I can look for the name of the new version. - Daniel Roth
Re: Another sundial mailing list called gnomon.
> Did you know that there is another sundial mailing list called > gnomon. > > List Name: gnomon > Description:"Sundials and Gnomonics Discussion List" > To Subscribe: Send email to: [EMAIL PROTECTED] > I've taken a look at it. So far there were 12 members. Is there a need for a second mailing list on sundials? Our mailing list has more than 200 members. Cheers - - Daniel Roth, Arbeitskreis Sonnenuhren
RE: Pocket Sundials
> While surfing the net a while back, I came across a museum site that > offered a couple of pocket or wrist watch type sundials for sale in > their shop. Maybe that there is a link on http:/www.ph-cip.uni-koeln.de/~roth/slinks.html If not and you've found your old one, please let me know. - Daniel Roth, Arbeitskreis Sonnenuhren
Re: Shortest day of the year
> I would like assistance in finding out the month and day of the shortest > day of the year. I appreciate all the help you can extend and contribute. You may want to take a look at the book 'Astronomical Algorithms' by Jean Meeus (Willman-Bell). Beside algorithms for the calculation of solstices and equinoxes you'll find a wealth of other interesting things like moon phases, azimuth and altitude of the sun and so on. A chapter about the calculation of sundials is included as well. - Daniel Roth
Re: Astronomy mailing list.
> I am looking for the address of a mailing list concerning astronomy in > general. > Does somebody know such an address? Please take a look at http://www.ph1.uni-koeln.de/~roth/lists.html - Daniel
book about sundials in southern Tyrolia
Dear Gnomonists, Karl Schwarzinger, president of the Austrian sundial society, let me know that the book DIE SPUR DER SONNE by Rosina Ruatti, Lucio Giudiceandria, and Ganesh Neumair is available again in a reprint. It was first published in 1993 and was sold out very fast because of its wonderful pictures of the very beautiful sundials in southern Tyrolia (belonging to Italy). The book is available from the Verlagsanstalt Athesia in Bozen, 1996. It costs 360.- Austrian Schillings or equivalents. The ISBN of the book is: 88-7014-893-9 - Daniel Roth, Arbeitskreis Sonnenuhren, Germany
Merry XMAS
Dear Subscriber of the sundial mailing list! Long being interested in sundials I came to know that more and more of the gnomonists are having the possibility to exchange e-mail. This brought me to the idea to start a sundial mailing list for us. Since the foundation in February of this year the list enlarged to 230 subscribers. I never thought that are so many dialists around the world with e-mail access! At the beginning of the next year I want to put the concatenated postings to the mailing list so far into a file accessible through the www. But before I do so, I want to ask every subscriber if he or she doesn't mind. Please, if you don't want this just send me a private e-mail to [EMAIL PROTECTED] I wish you a Merry Christmas and a Happy New Year! - Daniel Roth, Arbeitskreis Sonnenuhren, Germany N.B. A small present to the new subscribers: Try out http://www.ph-cip.uni-koeln.de/~roth/slinks.html
Pacific Northwest, was: Re: dial books
> In the Pacific Northwest where a sundial only works from May to September. Is this meant as a joke? Henry, can you explain this please? - Daniel
Re: A request
> I think there is a large horizontal dial with curves for the equation of time > at a financial bank in Munich, Germany. > The point where two walls of the building meets is used as the shadow casting > device. > I have no idea how high this point is, nor do I know how large the dials > plane is. This sundial is located at the 'Deutsches Patentamt'. The dial plane is about 30 times 60 meter. But I have no information about the height of the shadow caster. - Daniel Roth, Arbeitskreis Sonnenuhren
re: how to build an hemisphaerium
> The book is in Italian language (but I think you have some parent able to > translate it to you; your surname sounds Italian), the title is: "IL > CONCHINCOLLO", and it will be published in a month from now, for christmas. > The cost it will be ridiculous. Mario, please let us know when the book is available and how to order! Thank you.
Re: NASS Conference
> The shareware computer program "The Dialist Companion" has been a new Form where can one obtain this program? Is it in the Web? - Daniel Roth
sundial links
Hello, to those new to the list: You may want to visit http://www.ph-cip.uni-koeln.de/~roth/slinks.html If you have other links to sundial related pages please let me know. - Daniel Roth, Arbeitskreis Sonnenuhren
25 years 'Arbeitskreis Sonnenuhren'
25 years 'Arbeitskreis Sonnenuhren'
===
Last month the German sundial study group - called Arbeitskreis
Sonnenuhren - celebrated its 25th anniversary. It is the oldest
sundial society in the world and its roots go even five more
years back into the year 1966. One of the founders was Martin
Bernhardt the engineer who is well known for his sundial type
giving the mean time by a specially formed shadow caster.
One goal of this - at that time small - group of enthusiasts was
to continue the work of Prof. Ernst Zinner, an astronomer who
catalogued several thousands of old sundials in Europe. This
work just found its highest point two years ago with the release
of a catalog of the sundial sites in Germany and Switzerland
giving detailed information on 8000+ sundials.
The members aim at the construction of sundials, gnomonic advice
for everybody, restauration of historical sundials, cataloging
of sundial sites, studies on the history of time measurement,
unification of gnomonic terms, cataloging literature about
sundials, and the interchange of knowledge between the members.
Every year a conference is held including lectures on gnomonic
topics and an excursion to beautiful sundials in the vicinity
of the conferences place. This year it was held in Oberschleissheim
near Munich in southern Germany and next year it is going to be
in Bremen in northern Germany.
If you want to learn more about the 'Arbeitskreis Sonnenuhren'
please contact the president:
Prof. Dr. Gerhard Aulenbacher
Eibenweg 48
55128 Mainz
Germany
- Daniel Roth, Oct 1996
P.S. Gnomonists visit http://www.ph-cip.uni-koeln/~roth/slinks.html
absence
Sorry, I wrote abstinence and meant absence.
new links
To all which are new to the list: There is a WWW-page with lots of links to sundial related pages in the net. Point your browser to http://www.ph-cip.uni-koeln.de/~roth/slinks.html If you find new sundial pages not listed on my page please let me know. - Daniel
Welcome to the new members!
Hello, after a note in the Bulletin of the British Sundial Society about this mailing list, the number of members of this list has increased again and is now 192! I'm impressed how many dialists there are and that so many of them have e-mail access. The last two weeks were rather quiet - maybe that many of us are on vacation. So am I until the beginning of September. I hope that no problems will occur during my abstinence. Please, if your e-mail changes first unsubscribe with your old address and then subscribe with the new one. To unsubscribe send unsubscribe sundial end to [EMAIL PROTECTED] and if you want to subscribe after that just send 'subscribe' instead of 'unsubscribe'. If this does not work take a look at the who-sundial-list by sendung 'who' instead of 'subscribe'. It is that you have to unsubscribe with exactly the same address with which you are listed in this who-list. Please use this mailing list to discuss problems relating sundials, to announce meetings, conferences, new books about sundials and so on. Best regards - - Daniel Roth, Arbeitskreis Sonnenuhren, Germany
Re: Precession parallel to ecliptic
On Sat, 13 Jul 1996, Daniel Roth wrote: > > Due to the precession the obliquity of the ecliptic is not constant. E.g. > 7500 B.C. it was 24 deg 14' and in the year 12000 A.D. it will be in > minimum with 22 deg 37'. Sorry, this was not correct. Of course it's not the precession that changes the obliquity of the ecliptic. The forces of the other bodies in the solar system are changing this parameter.
Re: Precession parallel to ecliptic
On Thu, 11 Jul 1996, Rory Sellers wrote: > "Precession of the equinoxes" means the earth's rotational axis is > precessing like a tilted top (one revolution every 25,000 years or so.) > Can someone help me with the name of the axis (vector, whatever) that > the earth's axis precesses _about_? It is the pole of the ecliptic. > And the real question: is this > "central" axis perpendicular to the ecliptic? (I.e. throughout the Great > Year, is the earth always tilted 23.5 degrees from the ecliptic?) Yes and no. In first approximation this axis is perpendicular to ecliptic as long as the bodies which try to tilt the earth's axis perpendicular to the ecliptic. But there is the moon whose plane of revolution around the earth is inclined by about 5 degrees to the ecliptic. Due to the gravitational force of the sun the moon itself makes a precessional movement which overlays the earth's precession. This is called nutation and has a period of 18.6 years. The effect of the nutation for the position of the pole of the ecliptic is only about 10 arc sec in maximum (although it is not said that the nutation affects the position of the pole of the ecliptic). Due to the precession the obliquity of the ecliptic is not constant. E.g. 7500 B.C. it was 24 deg 14' and in the year 12000 A.D. it will be in minimum with 22 deg 37'. Of course this affects a sundial which is made for "eternity" as long as it shall give a mean time only. It is possible to calculate the analemma curves (8-shaped lines) for other centuries. But then you also have to obeye the changing of the eccentricity and the perihel position of the earth's orbit around the sun (I could imagine it will give a nice movie). Formulae for the calculation of this you can find in: Jean Meeus, Astronomical Algorithms, Willman-Bell. - Daniel Roth, Arbeitskreis Sonnenuhren, Germany
