DeltaCad 5
Sunny Day! Does any one have the demo version of DeltaCad 5 they are willing to send me? If so, please email me and I will provide you with an email address where the file can be sent. Please do not send it to this address as I am on dial up and it would take forever to receive. Thank you for your help. Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Sundial software
Sunny Day Yvon! Thank you very much for making your sundial software, Calcad, available in an English version. I have loaded it and have been trying it out using the sample layouts you included. Having a user's manual in pdf format is really great. Anyone can have fun designing a sundial using your program. I like the way the sundial can be moved and scaled on the dial plate, as well as the simple method of changing the time and date when the shadow is shown. This is a really nice tool! Carl www.mysundial.ca -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de]on Behalf Of Yvon Massé Sent: Saturday, March 27, 2010 12:23 PM To: sundial@uni-koeln.de Subject: Sundial software Dear all, I am pleased to inform you that the sundial software I wrote, Calcad, is now available in English language. Calcad is a new approach in the practical design of sundial for no specialist because the usual parameters are not used. Other originality, the first stage of the method is the drawing of the outline that can be drawn crooked... All the plane sundials are concerned without difference in the instructions for use, it is just needed to measure two shadow points. To summarize: Calcad allows you to create 80 % of the sundials with only 20 % of gnomonic knowledge. Calcad is supplied with complete help and user's manual. You will find a preliminary version (1823 Ko) at: http://pagesperso-orange.fr/ymasse/divers/install_calcad_vxxmars10.exe I will be pleased to receive your comments and remarks. I will appreciate particularly if someone would accept to correct the language mistakes I made. This will give a nice tool for beginners in gnomonic. Yvon Massé --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Troublesome things these sundials!
I don't know why you all keep harpin about these shot up signs. Every fall at huntin season my buddy and I use em to site our rifles. So..what's the problem with this? There nice an symetrical so you see how acurate the gun is. We like them hydro pole insilators even better. We shoot at those for beers. So don't complane about it unless you have tried it. -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de]on Behalf Of Thaddeus Weakley Sent: Tuesday, December 08, 2009 4:40 PM To: Sundial; Frank Evans Subject: Re: Troublesome things these sundials! Sounds like a lot of small-town middle America to me (when they don't just steal the sign to sell for scrap instead). Even if you can't read them, I suppose they're the next step for marksmanship when moving from the broad side of a barn to live targets --- On Tue, 12/8/09, Frank Evans frankev...@zooplankton.co.uk wrote: From: Frank Evans frankev...@zooplankton.co.uk Subject: Re: Troublesome things these sundials! To: Sundial sund...@rrz.uni-koeln.de Date: Tuesday, December 8, 2009, 1:16 PM In this country ordinary road signs are often adorned with graffiti. In South Africa, not graffiti but bullet holes. Frank 55N 1W --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
New DeltaCad macros
Sunny Day! The attached message was sent by Valentin Hristov yesterday but it appears it did not make it to the list. This may be because it contained a small ZIP file that contained the macro files. Perhaps the system does not allow messages with this type of file to pass. In any case, this is another exciting DeltaCad macro written by Valentin. It is quite interesting as it uses a couple of data files to introduce the information required to create the drawing. You can get these macros at the Valentin's web page. The link is provided in his email below. Carl www.mysundial.ca -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de]on Behalf Of Valentin Hristov Sent: Monday, August 31, 2009 2:25 AM To: sund...@rrz.uni-koeln.de Subject: New DeltaCad macros Dear sundial friends, I want to announce that two new DeltaCad macro files for use in the Northern hemisphere are put on my page (go almost to its bottom) www.math.bas.bg/complan/valhrist/mystuff.htm. I am very grateful to Carl Sabanski for giving me the idea of these macros. StarSun.bas is an extension of my previous macro StarClck.bas with much more stars (900) and the positions of the Sun among them for every date in the year (the ecliptic). This allows to find the time if you know the azimuth or the height of the sun, and vice versa, if you know the time, you can find the azimuth and the height of the sun. You have to print the two layers separately (the one with the azimuth-height grid on a transparent one). Please, read instructions for use in the beginning of the file. StarSunZ.bas is as the previous macro file with added drawings of the zodiacal constellations (Z for zodiac). In such a way the construction resembles an astrolabe with only 15 constellations drawn. Principally, I can continue drawing the missing constellations, but this is a boring work. Therefore I put in the .zip file an auxiliary file StarSunT.bas. It shows the line numbers of all stars in the file stars.dat and these numbers are used in the file conlines.dat to indicate all segments in the drawings of the constellations. If someone is enthusiastic to continue drawing more constellations, I can share my experience in personal e-mail messages. As an example, the belt of Orion (seen at the celestial equator labeled 0 in the lower part between 5 and 6 hrs) consists of stars numbered 46, 27, 72 (the numbers are seen after enlarging) and the two segments connecting them can be described in conlines.dat simply as two lines 46 27 27 72 Let me note that you have to keep the files stars.dat and conlines.dat in the same directory with the macro files StarSun.bas, StarSunZ.bas and StarSunT.bas. Hope you will enjoy the new macros. Any feedback will be highly appreciated. Best wishes and more sunny days! Valentin P.S. Let me mention that you can use a drawn protractor for measuring the height of the sun from my previous macro Sun position (az-ht.bas). --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Symbols for Sunrise and Sunset
Sunny Day Frank! The attached is an interesting Chinese symbol for the setting sun. The squiggly line above the sun gives a clear indication of its direction. By inverting this line you then have a symbol for the rising sun. These symbols could be CADilized and simplified as required. Carl Sabanski www.mysundial.ca -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de]on Behalf Of Frank King Sent: Saturday, August 15, 2009 1:35 PM To: sundial@uni-koeln.de Subject: Symbols for Sunrise and Sunset Dear All, A designer friend has asked about symbols for sunrise and sunset on sundials. Given the obvious importance of these two points of the day I would expect there to be many examples but I cannot recall any on sundials and hardly any elsewhere. I have seen the usual astronomical symbol for the sun (a circle with a dot in the middle) underlined to mean sunrise and overlined to mean sunset but I regard these as ambiguities... [An underlined sun could either be a sun that has just risen or a sun that is about to set!] In almanacs you see rise and set and I have also seen SR and SS but these are not quite what I am wanting! I think the Aztecs used a pair of animals and the ancient Egyptians used different gods but I should be pleased to hear about other symbols; even a circle with :-) or :-( might have been used by now!!! Frank King Cambridge, U.K. --- https://lists.uni-koeln.de/mailman/listinfo/sundial attachment: ChineseSun.jpg--- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: pupil project
OOPS!! Made a mistake on the address. http://www.mysundial.ca/tsp/tsp_index.html -Original Message- From: Carl Barbara Sabanski [mailto:saban...@escape.ca] Sent: Tuesday, June 23, 2009 3:36 PM To: 'Thomas Steiner'; 'Sundial Mailing List' Subject: RE: pupil project Sunny Day Thomas! If you are looking for paper sundials I would like to invite you to visit The Sundial Primer. I have 21 different models you can choose from. Some are quite simple and some more complex. It would be possible to build more than one of the simpler sundials in the time you have. And there are some that would also take much longer. In any case, they are all in pdf format and ready to print. And they are all free! You can check them out at: www.mysundial.ca/tsp/tsp.index.html If you choose to build any of these sundials I would enjoy seeing a photo of your group and their sundials. If there is anything else on my site you may find useful for your presentation you are more than welcome to use it. Happy Dialling! Carl www.mysundial.ca -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de]on Behalf Of Thomas Steiner Sent: Tuesday, June 23, 2009 10:38 AM To: Sundial Mailing List Subject: pupil project Hi, I will hold a half-day project with students next Monday. The first 60min we will try to understand what sundials are and how they work. After that we have two and a half hour to create sundials on our own. My proposal is to make something like this here: http://picasaweb.google.com/finbref/Sonnenuhren#5310855902443813522 These ten guys are 15 years old and have some experience with manual working (most of them are farmer's children). If you have ever done something like that or if you have other ideas or proposals I'd be very happy to hear from you! Thomas --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: pupil project
Sunny Day Thomas! I forgot to mention Simon Wheaton-Smith's web site Illustrating Shadows found at: http://www.illustratingshadows.com/ There's a lot of cool dialling stuff there. When you get to his site check out the upper right side of his page. There you will find links to two pages called Paper Popups and Paper Cutouts. Simon's got a bunch of free sundial kits there. You just can't go wrong! Between our two sites you're sure to find something you can use. Happy Dialling! Carl www.mysundial.ca -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de]on Behalf Of Thomas Steiner Sent: Tuesday, June 23, 2009 10:38 AM To: Sundial Mailing List Subject: pupil project Hi, I will hold a half-day project with students next Monday. The first 60min we will try to understand what sundials are and how they work. After that we have two and a half hour to create sundials on our own. My proposal is to make something like this here: http://picasaweb.google.com/finbref/Sonnenuhren#5310855902443813522 These ten guys are 15 years old and have some experience with manual working (most of them are farmer's children). If you have ever done something like that or if you have other ideas or proposals I'd be very happy to hear from you! Thomas --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
North American Sundial Society
Sunny Day! The NASS web site has a new look! Check it out at: http://www.sundials.org/index.php Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
MYSUNDIAL.CA - THE BEST SUNDIAL WEB SITE!
Sunny Day! At the start of this new year I spent some time working on my web site after it had been dormant for some time. I would like to invite those who are new to the list and those who have not been to my site for a while to visit The Sundial Primer. Some of the areas that have been modified or expanded include: There are now short descriptions of 36 different kinds of sundials. This includes many illustrations and 3-dimensional CAD renderings of sundials. The 2009 EoT Booklet and Calendar are now available. Both of these were very popular last year. And if you are interested in a pocket sized booklet that gives the average value of the EoT and the sun's declination over the period of 2000 to 2047, Valentin Hristov has kindly allowed me to offer this on the same page. Be sure to take the link to visit My Stuff, which is Valentin's web page. There is a lot of good stuff there. There are a number of new paper and styrofoam sundial kits available. You will find kits for 21 different kinds of sundials. With the variety of designs available for many of the kits and the availability of kits for both the Northern and Southern Hemispheres there are total of 74 models that can be built at this time. I have a couple more on my list that I plan to work on. Valentin Hristov has completed some new macros and they are available on the DeltaCad Sundial Macros pages. There is a new cylinder sundial macro that will design a sundial for a semi-circular wall. This is very useful if you are looking for a unique garden wall that you would like to build your yard. He has also written a macro for a horizontal double box altitude sundial. He has written 19 extraordinary macros so there are no doubt others that you have not seen. Who knows, you might just find something else that is new to you. After all, The Sundial Primer now offers over 150 web pages of dialling information for your browsing pleasure. And there's more to come! Stop by any time. www.mysundial.ca/tsp/tsp.html Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: glue for stone dials
Sunny Day Rodney! As part of the construction of the Pinawa Heritage Sundial, I was involved in the installation of some signage. These were made of granite tablets from a local quarry. A couple were installed on the vertical face of limestone monoliths and a number were placed on a sloped concrete table. The quarry provided me with a 2-part epoxy, Akabond 231 manufactured by Axson North America, Inc. The following web page has information on this epoxy as well as other types the company manufactures. http://www.axson-na.com/axna-ws-epoxy.html The can provides the following information: - Accepts epoxy coloring pastes for matching stone. - Bonds natural stone on vertical surfaces. - Designed for external applications. - Suitable for structural bonding. The instructions indicate the surfaces to be treated must be dry, free of dust and should be slightly roughened. The mixture will remain workable for approximately 20-30 minutes. The bonded parts can be moved after 6-8 hours and worked on after 12-16 hours. Maximum stability is obtained after 7 days. If you wish to use silicon, try the RTV100 Series silicon rubber adhesive sealant made by GE. The tube I have states that it has a 10 minute work period, is tack-free in about 20 minutes and has a normal cure time of 24 hours. The following is a technical data sheet in pdf format. http://www.dcproducts.com.au/RTV_Silicone_Solutions/Tech_Data_Sheets/RTV100S -tds.pdf Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Rodney Heil Sent: Saturday, August 09, 2008 2:51 PM To: sundial@uni-koeln.de Subject: glue for stone dials Hi folks, For those of you who work with stone, what sort of glue would you use to attach polished granite to polished granite? I was just planning to glue the gnomon to the face. The man at the granite flooring store told me Gorilla Glue would be just fine, but I would like to hear from the sundial crowd. When this dial is finished, I will post a photo of it to this list. Thanks in advance. Rodney Heil 35 deg. 37' 26 N 117 deg. 40' 17 W --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Request for suggestions
Sunny Day Mac! Please check out the following web site for a product that can be used to blacken stainless steel at room temperature. I have no idea how good it is or how much is required. You can contact the company for further info. http://www.caswellplating.com/kits/black.htm Scroll to the bottom of the page. Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: A new mosaic Analemmatic, in Australia - plus a 'suggestion', for this List
Sunny Day! It seems that a number of people are interested in seeing photos of their Dialling Friends. We see the names of diallists and individuals interested in dialling on various web sites and on the SML but who are they. If you are willing to send me your photo, where you are located and a short description of your interest in dialling I would be very interested in starting a page on The Sundial Primer for this information. I do not wish to include links to web sites if that is okay with you. What will I call the page? What about Dialling Friends? If you are interested please send me your photo and information. If there is enough interest I will start the page. Please provide a 2008 photo and the file size can be larger than the SML takes but less than 100 kb if possible. Also, if you have one, please send me YOUR maker's mark and I can put that on a page I have already started. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Linda Reid Sent: Thursday, April 17, 2008 3:41 AM To: sundial@uni-koeln.de Subject: A new mosaic Analemmatic, in Australia - plus a 'suggestion',for this List As we do not see very many new sundials, from the Southern Hemisphere - here is a photograph which has been sent to me by a-friend-of-a-friend, in Australia. It is a mosaic Analemmatic layout, constructed at Cecil Plains (in Queensland). Note how the hour-markers run in an 'anti-clockwise' sense - being the opposite of any typical layouts, designed for a location within the Northern Hemisphere. The original picture was 2256 x 1496 pixels (about 1.6Mb) - so had to reduce it to make the file-size suitable for this Mailing List, but if anyone wants me to Email them the 'actual-size' JPEG photograph, then please contact me privately. A suggestion - I have always thought it would be useful if I could see pictures of the members of our Mailing List, and so that I could put a face to a name. I have included a small photograph of myself. If other members think that this could be a good idea, then I will look forward to seeing your images in future. Yours sincerely, Linda Reid. --- https://lists.uni-koeln.de/mailman/listinfo/sundial
FW: new feature in Orologi Solari
Sunny Day Gian! That is an excellent feature you have added to your program. I am sure there are many out there taking photos just to try it out. You are doing a great job and I appreciate the fact that you are willing to share your hard work with the rest of us. I look foreward to seeing your next addition. Happy Dialling! Carl -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Sunday, March 09, 2008 12:16 PM To: Sundial list Sundial list Subject: new feature in Orologi Solari Dear all, I have included a new feature in my program Orologi Solari that I would like to introduce. The idea came from the fact that when designing a new dial I make the usual wall declination measurements then I take a picture of the wall and by means of a graphic program I put the dial design on the picture in order to find the best position, dimension etc. So why not to design the dial directly on the wall picture? Orologi Solari contains now a new parameters page where a graphic image file can be defined together with the true distance between two any points in order to get the true picture dimension. Then the picture is shown on the screen and the dial is drawn over it and it can be moved, made larger or smaller etc. All the other features of the program, including simulation, work as usual so that it is possible to see the simulated shadow on the wall during the day and during the year. All that can be done immediately with a laptop and shown to the customer in order to let him see a draft version of the final result (apart from dial decorations of course). I am attaching a picture showing an example of what you can see on the screen. Maybe this feature could be useful for ancient dials restoration too: the picture of the old dial can be put on screen and the new dial can be designed with the calculated parameters in order to see if the new lines overlap on the old ones, changing any parameter if needed. And if picture distortion is considered to be a potential problem, a handmade design could be used instead. As I don't actually know if all this stuff can be really useful or its just a useless idea (it's difficult to assess our own product), I would appreciate any comment or suggestion. My best regards to all of you. Gian http://digilander.libero.it/orologi.solari --- https://lists.uni-koeln.de/mailman/listinfo/sundial
DeltaCad Sundial Macro - Learning How to Write Them
Sunny Day! As many of you are aware, Valentin Hristov wrote an excellent DeltaCad sundial macro for a bifilar sundial that can be designed in any arbitrary position. This macro can actually be used to design 13 different sundials. I have never attempted to write a macro and I thought a good way to start learning would be to modify an existing macro. So, with Valentin's help, I have made a couple of modifications to his bifilar sundial macro. There are two changes I have incorporated as follows: In the original macro there are three selections for the hour line time intervals. In the modified version there are seven. In the original macro there is one set of date lines that are integrated with the period selection. In the modified version the date line selection has been separated from the period selection. There are now six selections for the date lines as well as the original three period selections. If you would like to see what the new version has to offer scroll way down to the bottom of this page: www.mysundial.ca/tsp/deltacad_sundial_macros_vh_bifilar2.html If you would like to get this macro go to this page: www.mysundial.ca/tsp/deltacad_sundial_macros_vh.html I believe these changes have added additional flexibility to the original macro. It was a challenge to even modify a macro and get it working. It is a great learning experience if you have never programmed before. Give it a try. If you encounter any problems with the macro please let me know. And while you are visiting go to the spider sundial page to see Valentin's latest macro. Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: DeltaCad Macros and Virtual Dials
Sunny Day! Excellent work! I really like what you have done. One real sundial...one virtually real sundial. Thank you for sharing your creations and keep up the good work. I am sure that everyone is looking foreward to your next creation. Happy Dialling! Carl -Original Message- From: Phil Walker [mailto:[EMAIL PROTECTED] Sent: Friday, February 22, 2008 5:05 AM To: Carl and Barbara Sabanski; Valentin Hristov Cc: Phil Walker; Sundial List Subject: DeltaCad Macros and Virtual Dials I look forward to each new version of Valentin Hristov's origami DeltaCad macros, featured in Carl Sabinski's Sundial Primer website. Recently I have made a portable dial, based on Valentin's Bifilar macro. To see it, go to my website www.sunandshadows.net and then go to My Home Sundials. Or, as an alternative, go to My Virtual Sundials and check my Declining Vertical Bifilar Dial. With a little modification to the DeltaCad macro and use of Google SketchUp, here is a virtual sundial, located at my back garden. This is a declining Vertical Bifilar dial, ( see the parameters in the webpage). One of the advantages of Google SketchUp is that you get from the model the appropriate shadows from the location, date and time and you can also get animations for the model. As Carl says, Sunny Days Phil Walker Newport, Shropshire, UK 52deg. 46min. N 2deg. 22min. W SOL NOS ALIOS VMBRA E-mail: [EMAIL PROTECTED] Website: www.sunandshadows.net --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Monumental Sundial
Sunny Day! I have been trying to understand the consequences of shadow tapering on a monumental sundial a little better. To help visualize this I have attached an image I modified from Wikipedia. From previous emails I come up with the following. If the shadow casting object is cylindrical the resulting shadow is theoretically as shown in the image. The diameter of the sun is about 32' as was mentioned. The umbra will disappear at a distance ud equal to: ud = r / tan (16/60) = 214.9 x r where r is the radius (D/2) of the cylinder. This is the maximum theoretical distance and is not reality. The umbra is not likely to be visible at that distance just as the penumbra is not visible as shown in the image. That is why a gnomon diameter equal to 1/105th of the distance from the origin to the point where the readings will occur is recommended. Now at any point P that is a distance d from the cylinder the umbra has tapered by: t = 2 x tan (16/60) x d x r = 0.009308 x d x r and the width of the umbra is D - t. If the object is a vertical cylinder the section that casts its shadow at point P varies throughout the year as the sun's elevation changes. But as the cylinder is vertical d will remain constant a so will the taper value t. This will also remain the same at different latitudes. If the cylinder is sloped the section that casts its shadow at point P still varies throughout the year but now so does d. As a result the taper value t will vary. The width of the umbra at point P will vary throughout the year. However, as the gnomon is cylindrical and it is the centre of the umbra that is of interest, this change in the taper value does not matter. Now, if the wide gnomon is not a cylinder but a triangle then the style is an edge. The shadow cast by this edge will also taper. At any given point on the dial plate this taper will vary throughout the year because it originates from different positions on the style. If the dial plate is not designed to give constant values of d in the reading area the taper will also vary from line to line in the reading area. The taper will also be affected by the latitude. If I have this straight then when the hour lines are adjusted for taper this will not be a definitive adjustment. On a smaller sundial the taper variation will be small because of the small changes in d. On a monumental sundial, this variation may be significant depending on the layout of the dial plate.. If a gnomon goes to a point that acts as a nodus the result of tapering will be noticed very quickly I would think. This would be especially true at large values of d. If this is wrong please let me know. Happy Dialling! Carl Sabanski www.mysundial.ca attachment: umbra.jpg--- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Monumental Sundial
Sunny Day John! I have looked at your photo of the nodus' shadow and it supports the comments I made regarding monumental sundials. The size of John's photo file is 483 kb so for those who have a problem with downloading such large files I have attached a much smaller file that shows the important part. You say that the shadow is much better than you expected. As seen by the messages, one can calculate and evaluate this discrepancy away. But you must be knowledgeable regarding things gnomonic. However, to Joe Public there is no way they would pick the winter solstice line as the point where the nodus is located. They would probably pick the point where the shadow is darkest, a significant distance away. The nodus is lost in the shadows. The time is also just after 11 a.m. and the shadow would be relatively short compared to the rest of the day where the error would probably be even greater. What would Joe Public say? What did the customer say! Did this meet their expectations or the project requirements (not necessarily the same)? I don't know. The were undoubtedly happy with the form but were they happy with the function. In any case, the point is if anyone is involved in the construction of a monumental sundial, particularly if you are charging for your services, the customer's expectations must be known. This will in turn become the requirements the diallist must meet. If the expectations cannot become achievable requirements the customer must be made aware of this or they will be disappointed. And Joe Public will think they are just looking at another sundial that doesn't work but it's big. Happy Dialling! Carl -Original Message- From: John Carmichael [mailto:[EMAIL PROTECTED] Sent: Monday, February 11, 2008 11:00 AM To: 'Carl Barbara Sabanski'; 'Sundial Mailing List (E-mail)' Subject: RE: Monumental Sundial Hi Carl: We managed to get photos of the monumental sundial in Colorado Springs on the Winter Solstice. I have written an article about it that will probably be published in The Compendium, so I don't want to discuss the results too much here. But I will say that the long shadow of the gnomon's tip was much better than I expected it to be. The design of the gnomon tip is very important to minimize shadow shortening. Slender pointed tips are bad. You can see all the high def Winter Solstice photos at: http://advanceassociates.com/Sundials/COSprings/ Or just look at this one which I like a lot because of the snow: http://advanceassociates.com/Sundials/COSprings/Images/Chinook_Trail_Sundial _Winter_Solstice_3.jpg John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carl Barbara Sabanski Sent: Sunday, February 10, 2008 4:43 PM To: Sundial Mailing List (E-mail) Subject: Monumental Sundial Sunny Day! It was a bright sunny day here in the Great White North. Sunny because it was about minus 29 degrees C. I went to the shed and got a couple of sticks, one being the handle from an old broom and the other from a rake. I am sure that most of you have done similar experiments. I stuck the broom handle vertically in the snow and the rake handle on a slant. The contrast of the shadows against the white snow was excellent. I have included a couple of pictures. Almost froze the fingers on my right hand getting these. Pic_1 was taken at the base of the sticks and shows how sharp the shadows are. Pic_2 shows the ends of the shadows. They are becoming very fuzzy. It is possible to determine the centre of the shadows but finding the edges is not an easy task. Zoom in and you will clearly see the. It was also obvious that the stick's shadows tapered significantly as you get further away from the base. Is this taper always the same? Probably not. It is also very difficult to find the tip of the stick's shadow. It is not where you think it is. And sometimes it is totally lost in the shadows. The longer the shadows become relative to the length of the stick the less distinct the shadow is. I viewed the shadow from a thin wire rod on the snow and very quickly there is no distinct shadow at all that could be used. I imagine these are the same issues that would be experienced in the design of a monumental sundial using a rod gnomon. If the rod casts an extremely long shadow and you must use this shadow to tell the time there will be a point where the shadow is no longer useful. I would think the gnomon should be relatively long in comparison to the size of the dial plate to provide good shadows for reading. Having an extremely large sundial using a shadow casting gnomon and making it very accurate are probably mutually exclusive. There is no doubt a limit to the size of a sundial that will allow it maintain its function at a particular location for the entire year and for all times it is illuminated. So if its big it better be spectacular so people don't really notice that it isn't working that well. Like the Sundial
RE: picture size
Sunny Day! My photos were purposely sized to be below the maximum limit of which I am well aware. In any case, if the size limit is exceeded the message will not make it through. I am on dialup so I am very aware of how long it takes to download large files. I not only reduced the size and resolution of the original photos but also combined two photos to get below the limit. I thought they were delightful too! Thanks!!! Happy Dialling! Carl -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Frank Evans Sent: Monday, February 11, 2008 6:06 AM To: Sundial Subject: picture size Greetings fellow dialists, Delightful though Carl's brookstick pictures were, we should remind ourselves that some will find downloading such pictures heavy going. We have a convention of posting only microscopic attachments. Could someone with a better memory than me recall our agreed figure for microscopic? Frank 55N 1W -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.20.2/1270 - Release Date: 10/02/2008 12:21 --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Monumental Sundial
Sunny Day! It was a bright sunny day here in the Great White North. Sunny because it was about minus 29 degrees C. I went to the shed and got a couple of sticks, one being the handle from an old broom and the other from a rake. I am sure that most of you have done similar experiments. I stuck the broom handle vertically in the snow and the rake handle on a slant. The contrast of the shadows against the white snow was excellent. I have included a couple of pictures. Almost froze the fingers on my right hand getting these. Pic_1 was taken at the base of the sticks and shows how sharp the shadows are. Pic_2 shows the ends of the shadows. They are becoming very fuzzy. It is possible to determine the centre of the shadows but finding the edges is not an easy task. Zoom in and you will clearly see the. It was also obvious that the stick's shadows tapered significantly as you get further away from the base. Is this taper always the same? Probably not. It is also very difficult to find the tip of the stick's shadow. It is not where you think it is. And sometimes it is totally lost in the shadows. The longer the shadows become relative to the length of the stick the less distinct the shadow is. I viewed the shadow from a thin wire rod on the snow and very quickly there is no distinct shadow at all that could be used. I imagine these are the same issues that would be experienced in the design of a monumental sundial using a rod gnomon. If the rod casts an extremely long shadow and you must use this shadow to tell the time there will be a point where the shadow is no longer useful. I would think the gnomon should be relatively long in comparison to the size of the dial plate to provide good shadows for reading. Having an extremely large sundial using a shadow casting gnomon and making it very accurate are probably mutually exclusive. There is no doubt a limit to the size of a sundial that will allow it maintain its function at a particular location for the entire year and for all times it is illuminated. So if its big it better be spectacular so people don't really notice that it isn't working that well. Like the Sundial Bridge. This would also apply to a nodus. I would guess John that your sundial at the Colorado school might be experiencing this. I believe its gnomon ends at a tip. I believe the shadow of this tip may be lost in the shadows at this time of year. If not it would be interesting to know as the sundial is quite large and also a bit further south than my handles. There is a 60 metre horizontal sundial located in Lloydminster Alberta/Saskatchewan in Canada. It uses a rod gnomon but I have never seen it and do not know how well it works. It appears to have only the full hour lines so the designer may not have been trying for the accurate indication of time. It is simple but impressive because of its size. You can see it at: www.mts.net/~sabanski/sundial/sotw_canada_lloydminster.htm Anyway, biggest is not always better. There must be a balance between the form and its function. A monumental sundial need not be the biggest sundial. If you have a sundial, large or small, that you have built or are involved in building share it with the rest of us. It will help to motivate others to try to build their first sundial. Happy Dialling! Carl Sabanski www.mysundial.ca attachment: pic_1.jpgattachment: pic_2.jpg--- https://lists.uni-koeln.de/mailman/listinfo/sundial
A New Year - More New DeltaCad Sundial Macros
Sunny Day! If you are looking for an interesting sundial design to try out, Valentin Hristov has taken care of that. Valentin's latest creation is the cylinder sundial macro. You may immediately think this is a macro to draw a Shepherd's sundial. Nope. This is a macro that will draw a sundial on the inside surface of cylinder as would be delineated by a beam of sunlight through a teeny tiny hole in the cylinder's wall. And to top it off, the cylinder and therefore the hole can have any arbitrary orientation. Interested? http://www.mysundial.ca/tsp/deltacad_sundial_macros_vh_cylinder.html This macro should make for some interesting designs by some imaginative diallists. It could be you! While you're visiting check out Valentin's modified macro for the horizontal box altitude sundial. Instead of having all 12 months inside one box you can now have one month inside each of 12 boxes. So you can fun making 12 sundials to cover the entire year instead of one. http://www.mysundial.ca/tsp/deltacad_sundial_macros_vh_altitude.html Have you been checking out Gian Casalegno's web site lately? His sundial design program Orologi Solari is going through many upgrades and is definitely worth while keeping an eye on. Be sure to visit it often! http://digilander.libero.it/orologi.solari And what about Simon Wheaton-Smith? He's been programming up a storm over the last while in more languages than I knew about. I trust that you have been visiting his web site Illustrating Shadows to see what he has new. His latest update date on his home page changes regularly so there's often something new. I won't give it away Simon, but I know he's been working on a big project that will blow you away when it finally comes to be. So stay tuned! By the way, if you have a DeltaCad macro that you would like included in the collection please send it to me. I will put a page together and let you review it, just to help me get all the bugs out of it, before it goes on the net. Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Dialist for PDA
Sunny Day Peter!
If you are running spreadsheets on your PDA you may also want to try Ricardo
Cernic's Excel-lent application SUN. You can find it at:
http://www.mysundial.ca/tsp/sun.html
Happy Dialling!
Carl Sabanski
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Peter Mayer
Sent: Tuesday, January 22, 2008 7:49 PM
To: Simon [illustratingshadows]
Cc: [EMAIL PROTECTED]
Subject: Re: Dialist for PDA
Hi,
I've been meaning to thank Simon for his super suggestion of using
Documents
to Go on a PDA, and for the link to his great Excel spreadsheets. The
combination is excellent.
Two questions, though: i) am I correct in assuming that Longitudes east
of
Greenwich are prefixed by a minus sign?
ii) on my Palm E2, the spreadsheet transferred as 'locked'. I can't
seem
to find out how to 'unlock' it. It's simple, I'm sure, but I don't know
where I
should be looking.
Thanks again, Simon,
best wishes,
Peter
{snip}
However, if you have Documents To Go, then you have
Excel on your PDA, and my Excel dialling aids, or any
of the others, can be used. And DocsToGo has graphing.
{snip}
Simon
www.illustratingshadows.com
--
Peter Mayer
Politics Department
The University of Adelaide, AUSTRALIA 5005
Ph: +61 8 8303 5606
Fax : +61 8 8303 3443
e-mail: [EMAIL PROTECTED]
CRICOS Provider Number 00123M
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DeltaCad Sundial and Dialling Related Macros
Sunny Day! With the permission of Simon Wheaton-Smith I now have a web page providing an overview of his many DeltaCad sundial and dialling related macros. Thank you Simon! The Sundial Primer is now host to a total of 63 DeltaCad sundial and dialling related macros written by a number of diallists. If you don't have them yet come and visit and get them while they're hot. http://www.mysundial.ca/tsp/deltacad_sundial_macros.html Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Bifilar Sundial DeltaCad Macro
Sunny Day! With Valentin's help I have prepared a page illustrating some of the features of this excellent new macro. Please check it out and if you have not downloaded the macro yet go to Valentin's main page and I have all of them zipped in a single file. Valentin also has them available on his personal web site. http://www.mysundial.ca/tsp/deltacad_sundial_macros_vh_bifilar2.html http://www.mysundial.ca/tsp/deltacad_sundial_macros_vh.html I would also like to invite those of you who have a sundial web site to join the Sundials WebRing. It will be sure to bring more visitors to your site and it is free. You can access the WebRing by going to the bottom of the following page: http://www.mysundial.ca/tsp/tsp.html I would also like to thank those who took the time to write and give me positive comments on the Equation of Time booklet and calendar. There have been hundreds of downloads already. I appreciate your thoughtfulness. If you do not have your copy for 2008 yet come and get it. http://www.mysundial.ca/tsp/eot_booklet.html Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Valentin Hristov Sent: Thursday, January 03, 2008 5:15 AM To: [EMAIL PROTECTED] Subject: Bifilar Sundial DeltaCad Macro Dear Sundial friends, HAPPY NEW YEAR 2008! I wish you to be healthy and let the sun shines more for all of us! The attachment is my present for you. It is a DeltaCad macro for drawing BIFILAR DIAL with arbitrary dial plane and arbitrary straight gnomons. It allows also drawing of DOUBLE BIFILAR DIAL as explaned below. The classical bifilar sundial has two gnomons which are perpendicular to each other and parallel to the plane with projections from top to bottom and from left to right as in my previous macro SDABIFIL.BAS which can be found on my page www.math.bas.bg/complan/valhrist/mystuff.htm or with explanation and pictures at www.mysundial.ca/tsp/deltacad_macros_vh.html (Thank you, Carl !). The new DeltaCad macro allows mach biger freedom for choice of: - dial plane - two arbitrary straight gnomons given by: 1) initial point 2) directional vector In addition to this it is possible to choose the option for drawing a Double Bifilar Dial with Left-Right symmetry. I saw a picture of such dial on the page http://www.de-zonnewijzerkring.nl/summaries/home-summaries-2006-3.htm and this encouraged me to add much more flexibility to my previous macro (December 2007) for classical bifilar dial. Now the new macro allows to test almost infinitely many possibilities. I would suggest to change slightly the initial Y-coordinate 2 of any of the gnomons to 1.9 and 2.1 and to see how the hour lines rotate remaining parallel to each other. This test shows that such construction is very sensitive and real models must be made with big accuracy. Another test could be to replace the X-coordinate 0 of the second gnomon to -0.4 and to see all curved hour lines except 12 hour. It is also interesting to see the result if the EoT correction and/or the Longitude correction are/is included. Different layers are drawn when you run the macro but I decided to hide some of them in the end. To see them you have to switch them ON in the View-Layers menu. Before printing switch OFF the not needed layers. As a prticular case you can draw the classical bifilar dial by choosing the first gnomon with initial point (0,0,1) and vector (0,1,0). The second gnomon should be with (0,0,h) and (1,0,0) resp. If the height h is suitably choosen, then the hour lines could be equiangular (15 degrees per hour). For Decl=0, Incl=0, Rot=0, the height should be SIN(latitude). Do not forget to give symmetric boundaries for the printed area. I hope you will enjoy playing with my new macro and you can share with me (privately) or with the sundial people from the list other interesting particular cases of bifilar sundial. Again, BEST WISHES FOR THE NEW YEAR !!! Valentin --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Skylight Dial
Sunny Day! I have looked at the photo of this sundial and it could actually be a functional sundial. It is New Years Eve and I could be a little hammered so I guess I could be wrong. Please let me know if I am. I have attached a photo of the sundial with the hour lines extended. They appear to join at an origin located at the top edge of the banner making this top edge the style. Looking closely at the vertical corner where the yellow and blue walls join it can be seen that the glass roof actually slopes down slightly. This would make the top edge of the banner, the style, slope down slightly. This slight slope would indicate that the building is probably located at lower latitude making the gnomon's height of a vertical sundial approach the vertical. This in turn would make the hour line angles almost equiangular or close enough to make them appear to be in such a photo. Also noon does not appear to be directly below the origin indicating that the hour lines have been corrected for longitude. But then again the thing could be just messed up. Then I would be wrong. I need another drink in that case! Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! RE: Skylight Dial John Carmichael Mon, 31 Dec 2007 10:06:23 -0800 Hi Jim: I have never seen this sundial (term applied losely). I assume it's a south vertical dial since 12 noon is directly below the origin of the gnomon. I agree at first glance that the concept of using the mullion and a banner is interesting, and I like the color scheme, but I can't get over the fact that this dial is flawed in so many ways. Let's start with the the gnomon. I assume that the style is where the hourlines seem to converge if extended. It's hard to tell if it is supposed to be the top of the banner or the mullion. It certainly can't be the curved bottom of the banner. There is a gap between the bottom of the mullion and the top of the banner. What are we supposed to look at to tell the time? The shadow of the mullion, the projected light through gap, or the shadow of top of the banner? In any case, all three of them are wrong because they are produced from objects that are perpendicular to the dial face. The style should point downwards and be parallel to the polar axis. This is such a common mistake made with many south vertical wall dials made by incompetent designers. That flawed dial in Kansas City I mentioned yesterday also suffers from this. Then what's going on with those hour numerals? They are evenly spaced when then should be closer together at midday. Why don't you write them to find out who designed it and where it's located. I wonder if it's at their corporate headquarters. I might write them myself. I'm curious. John -Original Message- From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. Tallman Sent: Monday, December 31, 2007 9:47 AM To: sundial@uni-koeln.de Subject: Skylight Dial Hello All, Do we know anything about this sundial? It is featured on the cover of this company's product literature: http://www.trenwyth.com/ Notice the small banner underneath the mullion that serves as the style...it is a nice detail, I thought, an inexpensive way to shape the shadow and indicate which one to use. Happy New Years, everyone! Jim Tallman www.artisanindustrials.com [EMAIL PROTECTED] attachment: vert_sundial.jpg--- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Skylight Dial
Sunny Day! I would not be so hasty. This sundial is located in a 3 storey tower so the photograph may not necessarily depict it accurately. The second paragraph of the following page would indicate that some thought was given to the design of this sundial. http://www.aiachicago.org/special_features/1997_Design_Awards/DBA/Awards/Win ners/DBA_172.html Carl -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Simon [illustratingshadows Sent: Monday, December 31, 2007 8:28 PM To: [EMAIL PROTECTED] Cc: sundial@uni-koeln.de Subject: RE: Skylight Dial so - I agree it is wrong. Simple quiz - with the dial plate asis and the style some 20 degrees in error - what is the maximum error. Happy New Year to one and all. Simon John Carmichael wrote: Thanks for that link to a still picture Claude. It was hard to see the photo on their Home page because it kept switching to a different photos in their slide show. Since it's in Chicago at about lat 52 degrees, then the gnomon should slope downwards from perpendicular (horizontal) by the same amount. It sure looks like it slants down much less than 52 degrees to me. Please let us know if they answer your inquiry. I still think it's flawed, but like everyone else, I love the concept of an interior wall dial illuminated by a skylight. John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Claude Hartman Sent: Monday, December 31, 2007 5:05 PM To: sundial@uni-koeln.de Subject: Re: Skylight Dial I found more details of this indoor wall dial. Go to: http://www.trenwyth.com/photo_gallery.asp?intPID=1startrec=73endrec=84 Image 82 of their Astra-Glaze photo gallery shows this to be located at Little Village Academy, Chicago, Illinois. This kind of defeats our guess at the latitude! The architects show many striking designs at their site, www.rbjarchitects.com I have sent an inquiry about the sundial. Happy New Year to all! --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: new program for dial design
Sunny Day! I have downloaded and used your program and would like to thank you for making it available for free for all to use. In case you haven't yet tried this sundial design software it is available in three languages; Italian, English and Czech. Although the help file is available only in Italian at this time the program is very easy to use. You can still get a lot of information by viewing the file though. A couple of other useful features this software offers is sun path charts (Day lighting) in both Cartesian and polar co-ordinates as well as a routine for calculating the declination of a wall that automatically enters the result into your design. There are also tables for the co-ordinates of the hour lines and other dial furniture. An excellent feature is facility to export the design in DXF format! You can then continue the design using DeltaCad or your favourite CAD software. Be sure to go to Gian's web site and check it out as well as the photographs of some beautiful sundials. Thank you Gian! Happy Dialling! Carl www.mysundial.ca Get hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Friday, December 28, 2007 11:57 AM To: Sundial list Sundial list Subject: new program for dial design I would like to submit my program Orologi Solari to the attention of the list. It offers features not available in other programs, such as azimut dials, vertical analemmatic, real time simulation of the shadow, a sundial based screen saver ... It is freely available from my site. I would be glad to receive your comments and suggestions. My best wishes to all of you ! Gian Casalegno [EMAIL PROTECTED] http://digilander.libero.it/orologi.solari --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: More DeltaCad Sundial Macros
Sunny Day Josef! The macros must be run on DeltaCad in order to draw the sundial or whatever else the drawing may be. DeltaCad can then save the drawing in DXF or DWG format. The DXF files can be opened in most CAD packages and the DWG in those that support that format. However, they may not necessarily look the same as they did in DeltaCad. For example, sometimes line weight is lost. However, these are things that can be fixed once the drawing is in the new CAD package. Also, if your CAD software is too old it will not be able to open the DXF and/or DWG file. I have experience with this problem. There is a new software package called progeCAD Smart that drives and feels like AutoCAD. It is available for free and will open the DeltaCad files. There is a link to the site on my Computer Aided Dialling page. Happy Dialling! Carl -Original Message- From: Josef Pastor [mailto:[EMAIL PROTECTED] Sent: Thursday, December 20, 2007 6:44 PM To: 'Carl Barbara Sabanski' Cc: 'Sundial Mailing List (E-mail)' Subject: AW: More DeltaCad Sundial Macros Dear Carl and others, I am not very familiar with CAD-Software. Nevertheless my question for learning: Are the DeltaCAD macros compatible to any other CAD-software like AutoCAD, TurboCAD, Googles´s SketchUp etc. ? Best regards Josef Pastor Sunny Day! I have just posted on The Sundial Primer an exciting new sundial macro written by Valentin Hristov. This macro will draw a bifilar sundial for any location and for any arbitrary orientation. It has many features that you just have to check out. But it does not end there! This macro can also be used to design a wide variety of sundials including the following: Equatorial Sundial - Top Bottom Polar Sundial Horizontal Sundial Vertical Direct South Sundial Vertical Direct North Sundial Vertical Direct East Sundial Vertical Direct West Sundial Vertical Declining Sundial Inclining Sundial Inclining/Declining Sundial It is just as amazing as the many other macros Valentin has written! I have also posted an excellent macro written by Peter Mayer. It is for the Merchant Dial of which many of you are probably aware of. This sundial is very easy to make and will indicate clock time. Peter originally had a single macro for the Southern Hemisphere but there are now four macros available that cover a wide range of locations. If you are a teacher, this sundial would make a great project for your students. Try it out! You can find these macros at: www.mysundial.ca/tsp/deltacad_sundial_macros.html Thank you Valentin and Peter for sharing your work! If you have a DeltaCad sundial macro you would like to share please send it and I will see what I can do. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
More DeltaCad Sundial Macros
Sunny Day! I have just posted on The Sundial Primer an exciting new sundial macro written by Valentin Hristov. This macro will draw a bifilar sundial for any location and for any arbitrary orientation. It has many features that you just have to check out. But it does not end there! This macro can also be used to design a wide variety of sundials including the following: Equatorial Sundial - Top Bottom Polar Sundial Horizontal Sundial Vertical Direct South Sundial Vertical Direct North Sundial Vertical Direct East Sundial Vertical Direct West Sundial Vertical Declining Sundial Inclining Sundial Inclining/Declining Sundial It is just as amazing as the many other macros Valentin has written! I have also posted an excellent macro written by Peter Mayer. It is for the Merchant Dial of which many of you are probably aware of. This sundial is very easy to make and will indicate clock time. Peter originally had a single macro for the Southern Hemisphere but there are now four macros available that cover a wide range of locations. If you are a teacher, this sundial would make a great project for your students. Try it out! You can find these macros at: www.mysundial.ca/tsp/deltacad_sundial_macros.html Thank you Valentin and Peter for sharing your work! If you have a DeltaCad sundial macro you would like to share please send it and I will see what I can do. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Equation of Time Booklet and Calendar - 2008
Sunny Day! I invite you to come and get a copy of a handy Equation of Time booklet and/or calendar for 2008. It's yours for the taking. http://www.mysundial.ca/tsp/eot_booklet.html Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: DeltaCad Sundial Macros
Sunny Day John! Thanks for the positive feedback. I do not have the vertical sundial macro to include. If one exists I would appreciate receiving it and I would include it. My page shows how the horizontal sundial macro can be used to draw a vertical sundial using DeltaCad. Thanks again. Carl -Original Message- From: John Carmichael [mailto:[EMAIL PROTECTED] Sent: Tuesday, November 13, 2007 9:03 AM To: 'Carl Barbara Sabanski' Cc: sundial@uni-koeln.de Subject: RE: DeltaCad Sundial Macros Hello Carl: Your DC macro pages are great and will help a lot of people. But your Ron Anthony's macro download link is missing his Vertical Dial macro. I seem to remember testing this macro long ago but I no longer have it on my computer. But if I remember correctly, it only calculated and drew vertical SOUTH dials, and did not draw vertical DECLINING dials. (you might want to relable the text to Due South Vertical Sundials) As far as I know, there are no macros available for either declining or inclining dials. These are the only major dial types macros that are missing from your great collection. Keep up the good work! John C. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carl Barbara Sabanski Sent: Monday, November 12, 2007 5:36 PM To: Sundial Mailing List (E-mail) Subject: DeltaCad Sundial Macros Sunny Day! I have been working on a new section of The Sundial Primer called DeltaCad Sundial Macros. I do not know how to write macros but I have tried to provide information on the use of some existing ones. Some of you have no doubt encountered these particular macros but perhaps some of you have not. You can check them out at: http://www.mysundial.ca/tsp/deltacad_sundial_macros.html If you have written a dialling related macro and would like to have it included as part of this page please send it to me along with any information that would be useful to new users. I will check it out and see what I can do. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
DeltaCad Sundial Macros
Sunny Day! I have been working on a new section of The Sundial Primer called DeltaCad Sundial Macros. I do not know how to write macros but I have tried to provide information on the use of some existing ones. Some of you have no doubt encountered these particular macros but perhaps some of you have not. You can check them out at: http://www.mysundial.ca/tsp/deltacad_sundial_macros.html If you have written a dialling related macro and would like to have it included as part of this page please send it to me along with any information that would be useful to new users. I will check it out and see what I can do. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Computer Aided Dialling - Solid Edge
Sunny Day! I just downloaded and installed the FREE 2D drafting package from Solid Edge. They also offer one of the premier 3D drawing software packages available. If you are interested in getting this free software visit: http://www.ugs.com/en_us/products/velocity/solidedge/free2d/index.shtml You must register and give a valid email address as they will send you a small file that must be copied into the appropriate directory for the software to function. It is a pretty big file at 233 Mb so if you are on dial up you probably won't want to try. You must also be operating on XP. Once installed the opening page allows you to select a tutorial that gets you going. It looks like a pretty nice package. You will be getting V19 but it looks like V20 is coming soon. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Web Page Authoring
Sunny Day! The important thing with photos and illustrations is to size them appropriately during the design of the web page. Make them the size (in pixels) required for your page layout. This can be done with the software that comes with your digital camera. Also select an appropriate resolution if your software allows you. 72 dpi is adequate for on screen viewing unless you want visitors to be able to print high resolution images. Doing these things reduces the file size significantly and allows your page to be loaded quickly, particularly for visitors who are on a dial up connection (like me). If it takes a long time for your page to load visitors will not stay unless you have something they really want to see. This is true no matter how good your HTML coding is. Controlling the file size of your images also allows you to put more on your site if web space is limited. Words take up very little space no matter how large the font is. I would suggest you use a font size that is easy to read. If your font size is too small visitors just won't take the time to read what you have posted. They will probably just leave. I do when I can't get the old bifocals to focus in. Happy Web Page Authoring! Carl -Original Message- From: Willy Leenders [mailto:[EMAIL PROTECTED] Sent: Saturday, August 25, 2007 5:12 AM To: Carl Barbara Sabanski Cc: Sundial Mailing List (E-mail) Subject: Re: Web Page Authoring Hello Carl and all, Unable in webdesign I started two mounths ago in designing with NVU my sundial website (a description with illustrations and background information of all the sundials of my province). It turns out well. Before long I go online. The great work is the gathering and formatting of illustrations. A little knowledge of html is nevertheless usefull to controll the generated source code. But one learns it by doing. Willy LEENDERS Hasselt Flanders (Belgium) Op 25-aug-07, om 00:38 heeft Carl Barbara Sabanski het volgende geschreven: Sunny Day! Have you thought about creating your own web site but just don't know how to do it. What's HTML? Heck...I don't know but that hasn't stopped me from developing my own site. I was looking through a brochure from a college located in a city not too far from here. They send these out to those of us who live in the wilderness. They were offering a course on creating web sites and I was able to get the name of the software they were using. And wouldn't you know it, it's free! It's called Nvu and you can find it at www.nvu.com. It has a web page editor that is a simple graphical interface...WYSIWYG (What You See Is What You Get). You will find a Nvu User Guide in the Help tab. If you go to the Nvu's official bug fix release page you can download KompoZer, which is based on Nvu but has a list of fixes. KompoZer has a very useful Help file too. I have installed both but have not spent a lot of time using them. Have some fun creating your own web site. Some ISP providers offer some web space as part of their service to you. Mine gives me 15 Mb of space where I can place web pages and any other files I like. You can get a lot of material in a space that size if you are careful (www.mts.net/~sabanski). You can also have your site hosted at a very low cost. Start your very own sundial web site today! There can never be enough. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Web Page Authoring
Sunny Day! Have you thought about creating your own web site but just don't know how to do it. What's HTML? Heck...I don't know but that hasn't stopped me from developing my own site. I was looking through a brochure from a college located in a city not too far from here. They send these out to those of us who live in the wilderness. They were offering a course on creating web sites and I was able to get the name of the software they were using. And wouldn't you know it, it's free! It's called Nvu and you can find it at www.nvu.com. It has a web page editor that is a simple graphical interface...WYSIWYG (What You See Is What You Get). You will find a Nvu User Guide in the Help tab. If you go to the Nvu's official bug fix release page you can download KompoZer, which is based on Nvu but has a list of fixes. KompoZer has a very useful Help file too. I have installed both but have not spent a lot of time using them. Have some fun creating your own web site. Some ISP providers offer some web space as part of their service to you. Mine gives me 15 Mb of space where I can place web pages and any other files I like. You can get a lot of material in a space that size if you are careful (www.mts.net/~sabanski). You can also have your site hosted at a very low cost. Start your very own sundial web site today! There can never be enough. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Computer Aided Dialling
Sunny Day! A couple of weeks ago I was told about a free computer aided design package called ProgeCAD. I visited the site and sure enough they provided free software but the new version, ProgeCAD Smart, has been coming since January 2007. That was a bit of a bummer. If you are interested check it out at: http://www.progecad.com/ The free software can be configured to look just like AutoCAD. The limitation I believe is that it will not draw and render solids, so 3D sundials are not possible. But it looks like all the 2D commands work. So why I am telling you about software that you can't get. Well it might become available in the near future and you will basically have AutoCAD LT for free. AutoCAD LT does not have solids commands either. It does get a little better. Last year's free version is ProgeCAD LT 2006 and I did find a site where you can download the EXE file. It's at: http://www.slunecnice.cz/sw/progecad/progecad-lt-2006/ Just click on the red button at the top right of the page and it will initiate a download of the file. The file is about 60 Mb when it gets to your computer. I installed the program and it appears to be working fine. It asks you to register each time you start it up, which is not possible as the software is no longer available from ProgeCAD. But you can just select the I'll do it later button and you're good to go. I am not certain how long it will keep running but there's not much to loose. It may not be available for long In the Help area there is a 600 plus page manual. Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Frying Pan Sundial
Sunny Day! A new Canadian magazine called Metalcraft came out about a couple of years ago. It is intended for individuals (artists and craftspeople) who already enjoy working with metal or would like to learn. Their web site is: www.metalcraftmag.com In their 2006 spring issue there was an article about constructing a working sundial using a frying pan. I recently discovered this article on the internet. Check it out at: http://www.metalcraftmag.com/PDFz/003a1.pdf Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Frying Pan Sundial
Sunny Day Roger! I believe that the frying pan sundial hour lines are laid out correctly. In the text is described the graphical method for laying out hour lines. The centre of the sundial is on the east west line but they have chosen not to number this line. There is also the following statement: It is important to note that the hour lines are not all equidistant from each other. This is intentional, but ... This Sundial Fryer is really hot! Regards, Carl -Original Message- From: Roger Bailey [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 11, 2007 7:06 PM To: Carl Barbara Sabanski; Sundial Mailing List (E-mail) Subject: Re: Frying Pan Sundial Hi Carl, One might think if you are going to do all that work to make an attractive sundial, you would get the numbers in the right place. The gnomon should start where the east west line from 6 to 6 (5 to 7 DT) intersects the north south line. The angles are not evenly spaced 15º apart but vary with latitude. This is Build a Simple Sundial lesson 101. Regards, Roger Bailey - Original Message - From: Carl Barbara Sabanski [EMAIL PROTECTED] To: Sundial Mailing List (E-mail) [EMAIL PROTECTED] Sent: Wednesday, July 11, 2007 3:08 PM Subject: Frying Pan Sundial Sunny Day! A new Canadian magazine called Metalcraft came out about a couple of years ago. It is intended for individuals (artists and craftspeople) who already enjoy working with metal or would like to learn. Their web site is: www.metalcraftmag.com In their 2006 spring issue there was an article about constructing a working sundial using a frying pan. I recently discovered this article on the internet. Check it out at: http://www.metalcraftmag.com/PDFz/003a1.pdf Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Help Oscar!
Sunny Day Andrew! I invite you to visit my web site The Sundial Primer at: www.mysundial.ca/tsp/tsp.html I have a very simple equatorial sundial kit that would probably work well in the classroom. Please check it out. Thank you for the plug Simon. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Andrew Pettit Sent: Tuesday, July 10, 2007 3:15 AM To: [EMAIL PROTECTED] De Subject: Help Oscar! About five years ago my eldest grand-daughter was given a home-work project by her teacher at a school many miles away from me in the Thames Valley England. This was in the last week of the summer term. The project consisted of a taking sheet of paper with a circle and right-angled triangle printed on it and a few (random) instructions about cutting bits out, sticking the triangle to the circle and using it to tell the time. Nothing about the properties of the triangle or the directions in which things should point etc.! Certainly nothing about what magic enabled this device to tell the observer the time ~ leave alone the science involved! I was furious and contacted the school but, by then, they'd finished for the summer and I was fobbed off with all kinds of excuses. Well, I thought, put it down to experience. It won't happen again. W - R - O - N - G !! Next year her younger brother was set the same task. Now, there is a third child in the family that goes to the same school. His name is Oscar and guess what next year, when he is 8, he is likely to be set the same pointless exercise. It's enough to turn any kid away from science. I am passionate about my grand-children and pointless homework raises my blood pressure! I would be perfectly happy to go into the School to explain how a sundial works and to set up a meaningful project ~ though it would be better if there were a few of us. Are there any offers of help and any advice on material to use? This will help Oscar and lower my blood pressure but the material could also be made available via this mailing list to help other Oscars in other parts of the world. I look forward to hearing from you. Andrew ~~ e-mail: [EMAIL PROTECTED] Postman Pat:3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ, ENGLAND Tel. UK:+44 (0)1444 453111 ~~ --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Equation of Time
Sunny Day Duane? As you suggest it is possible to incorporate the Equation of Time into a garden variety horizontal sundial. However it must be done to each individual hour line in the form of an analemma, which is in the shape of an 8. If used, it is normally done only on the full hours. I am sure you have seen this. I many cases the graph of the Equation of Time is included in the dial plate. When reading the sundial the graph is used to estimate the correction required on a particular day. You can see this at: http://www.mysundial.ca/sdu/sdu_correct_a_dial_2.html There is a more complex horizontal sundial that will indicate standard time. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Friday, June 01, 2007 2:57 PM To: sundial@uni-koeln.de Subject: Equation of Time Greetings, I am a new member and have what is probably a very simplistic question. My apologies in advance. When considering a flat, fixed sundial (not an equatorial dial) it appears that to get the sundial as close as possible to watch time you set it to the latitude and then adjust it for the longitude when laying out the hour lines. Having done all that, am I right in assuming that you are still at the mercy of the Equation of Time and will need to add/subtract minutes to the dials time to equal watch time? - or is it somehow possible to adjust a flat, fixed sundial to incorporate the equation of time also? Thank you for any guidance/help you will tender. Sincerely, Duane Thomson -- See what's free at AOL.com. --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Waterproof papers
Sunny Day! This comment is off Mac's original topic but deals with Edley's comment regarding thermal expansion. What I use for a number of my models is GE RTV100 Series Silicon Rubber Adhesive Sealant. It is what I used for gluing the card stock Shepherd's sundial to the paper tube used for the body. I also used it to glue plastic laminated card stock to strofoam board for a number of other sundials. You don't have to worry about being messy because after it sets all you have to do is rub off the excess. Also it stays pliant so variations in temperature are not likely to result in the paper getting loose. You can get it in small tubes or larger ones for caulking guns. I apply it in thin lines and rub it out smooth with my finger. In many cases you can still move the paper to align it if applied incorrectly. If the cylinder azimuth sundial was printed on normal paper and then laminated that would give a durable dial. It can then be glued to the cylinder using RTV. However, if the cylinder diameter is small, the dial plate may want to pull away at the joint because the RTV needs time to set. A method of holding the joint area against the cylinder would help. I just kept pressing it down as the RTV set until it held. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Edley McKnight Sent: Thursday, May 17, 2007 9:10 PM To: Mac Oglesby; Sundial List Subject: RE: Waterproof papers Hi Mac, Tyvek seems to work OK. It is hard to print on, requires special inks. One of the big problems I've found with the cylinder dials using the edges for gnomons is expansion with temperature changes. i.e. the paper gets loose. I made a slit in a cylinder, pulled the paper through and fastened it using stretchy stitching to the central rod. Dye transfer seems to work, but has faded quite a lot. If you find something better, please let me know. The paper has to be very bright and very smooth. There are a lot of folks making printed cylinder dials of one kind or another, maybe they will tell us their secrets. John probably means the Mylar drafting film, some of it seems to be very white, some not. Best Wishes, Edley. Thanks, John, I'm sure Mylar is great for certain applications, but doesn't work at all well for mine. I seek a durable material for use on a cylinder azimuth dial, where the sunbeams form two light/shadow boundaries, one at either side of the cylinder. I've tried Mylar, clear plastic, and plastic overlays on paper, and in each case the light/shadow boundary is quite indistinct. Best wishes, Mac Use Mylar!!! This is a translucent stiff milky white plastic paper. Your local blueprint shop can plot onto Mylar. I use it a lot. (it cost more than bond paper however). You can get it wet and it won't shrink, expand, or tear and the ink does not wash off except with acetone. Great Stuff! I used it on my design transfer to the wall for my painted wall sundial. I do not know if it works in your computer's printer because your computer printer probably uses ink that will smear if wetted with water. And computer ink may not stick to it. I have never tried it in my office printer. I have only had the blueprint shop plot onto it using their printer that is made for Mylar. John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mac Oglesby Sent: Thursday, May 17, 2007 10:54 AM To: Sundial Mailing List Subject: Waterproof papers Hello Friends, Probably I'm among the last to learn this, but there are several different brands of waterproof, durable papers available. A Google search on waterproof paper turns up lots of leads. One of the better URLs is: http://www.igage.com/WeatherP.htm Have any of you used waterproof paper for dial faces? Any comments to share? I'm starting to experiment with one brand (Lat 26) and have samples on order from igage. One possible BIG problem is a report that at least one brand of waterproof paper deteriorates after two or three months of exposure to bright, outdoor sunlight. Not what a dialist wants to hear! Best wishes, Mac Oglesby --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Waterproof papers
Hello Mac, I have an idea that you might want to try. It appears that what may work is a very thin protective coating. The laminations and overlays are probably all quite thick. You could make your sundial from regular paper and spray a clear coat on the surface. The protective coating used on cars might work. I don't know if you can buy this in a spray can but perhaps you may know someone at a body shop. If they were willing to spray a couple of sundials for you it could be done so one has a very thin coating and another a thicker coating. This would give you an indication of how the thickness of the clear coat affects the terminator. There is also a special clear coat that can be sprayed on outdoor murals and allows you to remove graffiti. But I know this stuff is quite expensive. Best wishes, Carl -Original Message- From: Mac Oglesby [mailto:[EMAIL PROTECTED] Sent: Friday, May 18, 2007 6:25 PM To: Carl Barbara Sabanski Cc: Sundial List Subject: RE: Waterproof papers Hi Carl, You wrote: If the cylinder azimuth sundial was printed on normal paper and then laminated that would give a durable dial. Thanks for the suggestion. Alas, in my tests, an azimuth cylinder sundial with a laminated paper dial face does not have a good light/shadow boundary. I have tried laminations and overlays of different thicknesses. It seems that even a very thin layer of any transparent surface seriously deteriorates the terminator. A vinyl dial face, as printed by a commercial sign shop, seemed like a great way to create a durable azimuth cylinder sundial, but the terminator is weak. Best wishes, Mac --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Reversed Italian Hours or Hours Til Sunset Sundial
Sunny Day! The last little while there has been quite a discussion regarding Italian hours and sundials that indicate hours left until sunset. Perhaps there is someone out there who is thinking: Wow! I sure would like to build one of those sundial. How do I do it? Never fear...The Sundial Primer is here! If you visit my Computer Aided Dialling (CAD) page you will find a couple of instruction sets that may be just what you're looking for. They will lead you through the process of designing an Hours Til Sunset for your location. One instruction set takes you through the steps of using ZW2000 to generate the hour lines and producing a DXF file. The second instruction set shows you how to use DeltaCad to complete your sundial design. If you're keen on making one of these unique sundials visit: www.mysundial.ca/tsp/cad.html It's so easy that you will have your Hours Til Sunset sundial design finished in about a couple hours before sunset. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Reversed Italian Hours or Hours Til Sunset Sundial
Sunny Day John! Thanks for the comments. I do believe that the PDF files available on my Computer Aided Dialling page are of use to some at least. Since they have been posted, which hasn't been very long, the PDF files have been accessed almost 3500 times to date. I have used the free version of Shadows for many years and this can be seen by the many images on my web site generated by that program and labelled such. Unfortunately, the free version does not offer a DXF output. I will give your suggestion due consideration. Thanks again. Carl -Original Message- From: John Carmichael [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 09, 2007 6:16 PM To: 'Carl Barbara Sabanski'; 'Sundial Mailing List (E-mail)' Subject: RE: Reversed Italian Hours or Hours Til Sunset Sundial Hi Carl: Your webpage on using Delta Cad in conjunction with popular dialing software like Zonwvlak and Sonne is very good. I hope it helps those who are new to designing sundials using a computer. Like you, I love using Zonwvlak with Delta Cad, but many of us also use the very popular Shadows Pro (free version available at www.shadowspro.com ) Each of these dialing software programs are good in their own ways and are useful for doing different things. (for example, check out Shadows Pros moving shadow feature). I think you might want to mention Shadows Pro as well since it is also good and is popular with dial designers. It can make dxf files and will easily import into Delta Cad, and it is available in English and French. It's nice to have all these options. Keep up the good work, John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carl Barbara Sabanski Sent: Wednesday, May 09, 2007 3:17 PM To: Sundial Mailing List (E-mail) Subject: Reversed Italian Hours or Hours Til Sunset Sundial Sunny Day! The last little while there has been quite a discussion regarding Italian hours and sundials that indicate hours left until sunset. Perhaps there is someone out there who is thinking: Wow! I sure would like to build one of those sundial. How do I do it? Never fear...The Sundial Primer is here! If you visit my Computer Aided Dialling (CAD) page you will find a couple of instruction sets that may be just what you're looking for. They will lead you through the process of designing an Hours Til Sunset for your location. One instruction set takes you through the steps of using ZW2000 to generate the hour lines and producing a DXF file. The second instruction set shows you how to use DeltaCad to complete your sundial design. If you're keen on making one of these unique sundials visit: www.mysundial.ca/tsp/cad.html It's so easy that you will have your Hours Til Sunset sundial design finished in about a couple hours before sunset. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Some Great Utilities!
Sunny Day! A little while back I posted a message regarding a Utilities page I have included at The Sundial Primer. Since then I have thought about the process of printing a drawing from DeltaCad that could be easily used by a print shop. It is possible to export a jpg file of your drawing but the resolution may not be that good. So I have been looking around for free offerings on the internet of PDF writers. The following are two that I have downloaded and tried. pdfFactory - www.pdffactory.com pdf995 - www.software995.com Being free they tack on some type of advertising when used but by paying a fee you can get a key to stop this. Otherwise they are fully functional. Software995 has a range of free utilities. You can get software to read and create ZIP files, FTP software to manage your new web site as well as a variety of other software packages. They are all fully functional except you have to put up with a little advertising. I have tried a couple of them. Perhaps there is something available that you have been looking for to expand you dialling experience. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Sun Version 5.2 and Convert and MORE!
Sunny Day! For all you new users of Ricardo Cernic's great Excel application Sun, version 5.2 has just been released. Please note that this will be last major revision of this application for a while. But this version is worth getting. The major item is the addition of a new sheet called Clock. This sheet contains 3 digital clocks and each one can be set to display any one of the following: Local Time Sundial Time Italian Time Babylonian Hours Temporal Hours Sidereal Hours UT If you discover any problems with the application, other than it doesn't work on a Mac, please let Ricardo know and he will correct it if need be. Please don't send your emails to me as all I can do is forward them. You can get the latest version at: www.mysundial.ca/tsp/sun.html Also if you are getting more involved in Computer Aided Dialling I have posted a very useful freeware application called Convert. It can be used to convert distances between various units. Convert has many other uses as well and I am sure that you will want a copy. If you have been downloading the free dialling software available, you have discovered that some come as ZIP files. If you have no way of extracting these files I have also posted a link to a free ZIPReader. I use it. These items can be found at: www.mysundial.ca/tsp/utilities.html If you are interested in building a stained glass sundial but have a problem with the design, in particular doing the mirror image thing, there is a trick you can use. Visit the updated Stained Glass Sundial page at The Sundial Primer and learn about it. Anybody can design a stained glass sundial! If you are looking for a sundial project that is a little out of the ordinary how about a shadow plane sundial using objects. With Ricardo's help, I have updated the second page of the Shadow Plane Sundial section to include a method of determining the range for the length of the hour lines for such a sundial. Finally, in the near future I hope to have a series of instruction sets for the sundial design package SONNE that will be similar to those I developed for ZW2000. If you do not have these FREE design packages, I urge you to download them and start learning to use them. They make designing many different sundials easy and fun. Spring is here...where I live anyway. Get excited about sundials! Design and build your own. It's just that easy! So, Get Hooked on Gnomonics! Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: SUN: created by Ricardo Cernic
Sunny Day! This message is for all users of the excellent spreadsheet application Sun.xls. Unfortunately it does not operate on Apple systems but life can sometimes be unfair that way. Version 5.1 has been posted and it provides a new control button on all screens. This button brings up a window that allows you to change date, time and location input information. This makes changing this information very convenient from any screen. You will find the link below where you can get the new version. Thank you Ricardo for the update! Happy Dialling! Carl -Original Message- From: Carl Barbara Sabanski [mailto:[EMAIL PROTECTED] Sent: Saturday, March 17, 2007 8:15 PM To: Sundial Mailing List (E-mail) Cc: 'Ricardo Cernic' Subject:SUN: created by Ricardo Cernic Sunny Day! I would like to introduce you to the work of diallist Ricardo Cernic. Ricardo has developed an excellent Excel spreadsheet application that I am certain you will find very useful. This application is called SUN and consists of a number of pages that include the Ephemeris of the Sun, Dialist and the Equation of Time. I will not even attempt to list all the information that is available. It has a very friendly user interface and controls. I am very excited as Ricardo has given me the opportunity to offer SUN at The Sundial Primer. So it is with great pleasure that I invite you to come and get your own copy of SUN. Check it out at: www.mysundial.ca/tsp/sun.html Thank you Ricardo for all your hard work and for making SUN available to everyone! Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
DeltaCad Manual and Other Cool Items
Sunny Day! I was roaming around the DeltaCad site and found this link where they offer a printed manual. If you are a real DeltaCad fan there are other items to be had. Check it out! http://www.cafepress.com/deltacad Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Computer Aided Dialling - CAD
Sunny Day! A little while back I wrote to tell you about a series of instructions I had written to help anyone interested get started with ZW2000 and DeltaCad. At that time these instruction sets were offered only on The Sundial Primer on CD. The reason for this was the very large file sizes that resulted when the Word files were converted to pdf files. Recently I gained temporary access to a memory stick and a computer with a relatively new version of Adobe Acrobat. The result was a reduction in file sizes to 15% of the previous set. And the print out still looked good. Unbelievable! So now all these files are available at The Sundial Primer on the web and they include: Getting Started with DeltaCad DeltaCad Shortcut Keys DeltaCad and Your Sundial DeltaCad and Your Vertical Declining Sundial Getting Started with ZW2000 ZW2000 and Your Sundial ZW2000 and Your Horizontal Sundial ZW2000 and Your Vertical Sundial ZW2000 and Your Vertical Declining Sundial I have tried to focus on the design of a vertical declining sundial. There are many opportunities for the installation of this type of sundial but they are not necessarily that easy to design using mathematics. It's a different story with Computer Aided Dialling (CAD)... not to be confused with the other CAD, Computer Aided Design. Give it a try! www.mysundial.ca/tsp/cad.html If you have any CAD or CAD questions please do not email them to me. I would ask that you join the mySundial Forum and post them there. That way the questions and hopefully answers can be shared by many and not just a few. And remember: DeltaCow(?) says: MOO!...You can learn DeltaCad too. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
SUN: created by Ricardo Cernic
Sunny Day! I would like to introduce you to the work of diallist Ricardo Cernic. Ricardo has developed an excellent Excel spreadsheet application that I am certain you will find very useful. This application is called SUN and consists of a number of pages that include the Ephemeris of the Sun, Dialist and the Equation of Time. I will not even attempt to list all the information that is available. It has a very friendly user interface and controls. I am very excited as Ricardo has given me the opportunity to offer SUN at The Sundial Primer. So it is with great pleasure that I invite you to come and get your own copy of SUN. Check it out at: www.mysundial.ca/tsp/sun.html Thank you Ricardo for all your hard work and for making SUN available to everyone! Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Font Templates for a Human Sundial
Sunny Day! Are you planning to build a human sundial or an interactive horizontal shadow plane sundial in the near future? If you are you will need a set of numbers for the hours and letters for the date scale? I have created templates for 31 font styles that include selected numbers and letters. These fonts have all been converted to lines and saved in dxf format. One is even saved in pdf format and is ideal for making stencils that can be used to paint on a hard surface. I have attached a sample image. There's more! You may be wondering how you will make use of one dxf font file let alone 31. I also have instructions that will assist you in the process of importing, resizing and printing the font of your choice using DeltaCad. If you are interested in finding out how you can get these fonts and the instructions please visit: http://www.mysundial.ca/sdu/sdu_dialling_guides_analemmatic_sundial.html If you need some information about DeltaCad and where to find the user's manual then visit: http://www.mysundial.ca/tsp/cad.html The format of the pdf file you find on the DeltaCad page is similar to that of the font instructions. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! attachment: Font_Cancun.jpg --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Laser Trigon
Sunny Day! I would like to thank everyone who provided feedback to my email. It was very useful to hear all your opinions on the subject. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Laser Trigon
Sunny Day! Over the last while I have been thinking about a laser trigon. Not one made out of brass with precision engravings and a high cost to go along with it. But one made out of rigid styrofoam board and scales printed on card stock and a low cost to go along with it. I realize that it still has to be of some use or what would be the point of making it. A laser trigon would normally be used to lay out a large sundial. But what would be an acceptable hour line layout accuracy for someone building their own sundial? I don't mean the type of accuracy that those of you with access to total stations or equivalent instruments would expect. Very few people can have their sundials delineated using such devices. A small hour angle error will have a greater impact on accuracy around noon if you live near the equator and less as you move away from this time. This same error would affect the accuracy more consistently over time as the latitude increases. I believe this is correct. What would be acceptable to you? I would appreciate your opinion. To give you an idea of the laser trigon design I am looking at I have attached a simple 3D image of the device. It is on the right and uses a laser pointer. In terms of laser pointers, all are not created equal. I have seen a red laser pointer in operation and is beam is elliptical. A green laser pointer supposedly has a circular beam but I have not seen one in operation. The laser trigon shown in the image is mounted on a base that allows it to be adjusted for latitude. So if you are building a horizontal sundial the entire device can be mounted on a plane parallel to the ground. The complete device is about 18 inches high. The smaller device on the left is a laser transit. If you have any comments regarding the design I would appreciate those too. Thanks for you help. Happy Dialling! Carl Sabanski www.mysundial.ca attachment: 3D_trigon_transit.jpg --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - The Inclinometer
Sunny Day! Okay, so there's this spot that calls out to you every time you go by: PLEASE.I want a sundial!. But you keep ignoring it. Why? Because it's a sloped surface and you just don't feel inclined to find its inclination. Well then, come and check out the latest SDU Cool Tool. It's the Inclinometer and it's easy to make and use. It has a resolution of one tenth of a degree and its accuracy is determined by how well it is constructed. Once you build it all your dialling buddies will want to borrow it. Come for a visit and get your kit. http://www.mysundial.ca/sdu/sdu_inclinometer.html Sunny Day U now has a number of devices to make your sundialling experience just a little more enjoyable. In addition to the Inclinometer, these include the: Correct-A-Dial: This calculator will help you determine the correction for the Equation of Time (EoT) and/or longitude. Correct-A-Dial II: This device is based on the EoT curve and will also help you determine the correction for the EoT and longitude. A fill in the blanks model allows you to determine the correction for any longitude. There are an additional 61 models already completed for longitude intervals of 1/4°. Dialling Buddy: This device will visually illustrate the relationship between the sun and the earth at any location as well as give you all kinds of dialling data. Dialling Guides: There are hundreds of templates available for ten different types of sundials including two human-sized interactive sundials. Wall Declinometer: This window mounted device will help you find the declination of a wall at local solar noon. Check-A-Dial: Don't get ripped off when you buy a sundial! This device and detailed instructions will give you a good idea of what to look for when buying a horizontal, vertical or equatorial ring sundial. SNOURTH-ometer: This device does just what it says...it helps you find the SNOURTH line! That's a total of 8 devices available to you. And those devices that require it are designed for both the Northern and Southern Hemispheres. If you haven't already got your kits, please come and visit: http://www.mysundial.ca/sdu/sdu_index.html Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! attachment: inclinometer.jpg --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: DeltaCad Macro for Merchant Card Dial
Sunny Day! The Sundial Mail Archive does not normally make attachments available. It is interesting to note that it appears archived messages with DeltaCad Basic file attachments include the file as text after the main body of the message. So the Basic files then get archived too. Happy Dialling! Carl Sabanski www.mysundia.ca Get Hooked on Gnomonics! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of fer de vries Sent: Tuesday, January 16, 2007 2:49 AM To: sundial; Peter Mayer Subject: Re: DeltaCad Macro for Merchant Card Dial Hi Peter, Great you wrote a Deltacad macro, but it didn't come through because of the extension .bas of the file. The virus scanner blocks this type of file. Could you send it again as zipped file or as plain text in the e-mail? Best wishes, Fer. Fer J. de Vries De Zonnewijzerkring mailto:[EMAIL PROTECTED] http://www.de-zonnewijzerkring.nl Eindhoven, Netherlands lat. 51:30 N long. 5:30 E - Original Message - From: Peter Mayer [EMAIL PROTECTED] To: sundial@uni-koeln.de Sent: Tuesday, January 16, 2007 7:42 AM Subject: DeltaCad Macro for Merchant Card Dial Hi, I've been working in odd moments of 'midnight madness' on a DeltaCad macro for the Merchant Card Dial. I'm attaching a thumbnail jpeg of the completed dial and the DC macro. In the best (worst!) traditions of dialing, this version of the dial is designed for the Southern Hemisphere Summer/Northern Hemisphere Winter and the standard time zones are Australian ones...Perhaps by next June I'll be able to write the second macro. best wishes, Peter Mayer -- Peter Mayer Politics Department The University of Adelaide, AUSTRALIA 5005 Ph: +61 8 8303 5606 Fax : +61 8 8303 3443 e-mail: [EMAIL PROTECTED] CRICOS Provider Number 00123M --- This email message is intended only for the addressee(s) and contains information that may be confidential and/or copyright. If you are not the intended recipient please notify the sender by reply email and immediately delete this email. Use, disclosure or reproduction of this email by anyone other than the intended recipient(s) is strictly prohibited. No representation is made that this email or any attachments are free of viruses. Virus scanning is recommended and is the responsibility of the recipient. === WARNING: This e-mail has been altered by MIMEDefang. Following this paragraph are indications of the actual changes made. For more information about your site's MIMEDefang policy, contact MIMEDefang Administrator [EMAIL PROTECTED]. For more information about MIMEDefang, see: http://www.roaringpenguin.com/mimedefang/enduser.php3 An attachment named Merchant Card Dial-South-summer-2.0.bas was removed from this document as it constituted a security hazard. If you require this document, please contact the sender and arrange an alternate means of receiving it. --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Sundial Furniture - Maker's Mark
Sunny Day! Most of you are familiar with a piece of sundial furniture called a maker's mark. And some diallists have developed their own unique mark that they use to sign their creations with. These maker's marks can be a diallists initials or a symbol that holds some special meaning to the diallist. And I am sure that every mark has its own story. I have started a Maker's Mark page at The Sundial Primer. If you have a maker's mark I invite you to send it to me, along with its story, and I would be happy to post it on this page for all visitors to enjoy. If you have a photo of a maker's mark of a diallist from the past please send it along with any information you may have of the diallist. Thank you. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Slanted Roman Numerals
Sunny Day! Thank you very much for sharing your techniques with us. I do not have Adobe Illustrator but I have a program called CorelDRAW, which I have not used very much. I know that it does not have all the capabilities of AI but with your detailed description Tony I will see if I can perform similar steps. The steps you describe for TurboCAD John could probably be done in DeltaCad. I have wondered about the curved EoT graph used on some sundials. It is a very nice piece of dial furniture. Thanks again! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Slanted Roman Numerals
Sunny Day! I have noticed on a number of different sundials that the Roman numerals used for the hour numbers are sloped to match the angle of the hour line. Is a special font, technique or combination of the two used to do this? I, and I am sure others, would be very interested in learning how to do this. Thank you for your help! Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Pinawa Heritage Sundial - A PowerPoint Presentation
Sunny Day! A couple of years ago I put together a PowerPoint presentation illustrating the design and construction of our town's monumental sundial. It summarizes some of what is on the main web site I created. I rediscovered this file and am making it available at The Sundial Primer. Many of you are aware of the work involved in a large sundial project. But perhaps some of you have not participated in such a project but are thinking about starting one. I hope that this presentation might motivate you to take on a sundial project in 2007. It can be big or it can be small. It just doesn't matter. WARNING: It is the opinion of diallists world wide that undertaking a sundial project may result in you becoming Hooked On Gnomonics. If you would like to see this presentation you can download it at: http://www.mysundial.ca/tsp/monumental_sundial.html Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Globe Sundial Kit
Sunny Day! I do believe this may be the only paper (and Styrofoam) globe sundial kit in the world. But I've been wrong before. The globe sundial was a little more difficult than I expected but I did get it together in the end. Anyway, if I can do it you can do it. Check it out at: http://www.mysundial.ca/sdu/sdu_globe_sundial.html Happy Dialling! Carl Sabanski www.mysundial.ca attachment: globe_sundial_model_1.jpg --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Heliochronometer Card Dials
Sunny Day! This isn't a card dial but it is made of paper and might just get you to lunch on time. It could work for the application that Gerard Hughes spoke about. It can be adjusted for latitude, longitude and the equation of time. Unfortunately it will only work for half the year. It is an equatorial sundial and I have attached an image of the dial plates. The two plates can be printed on card stock and sealed in plastic to protect them from the weather. To give the sundial rigidity the right plate can be glued to rigid styrofoam or a piece of wood and the support then cut out to shape. The vertical gnomon is positioned at the centre of the circle. The stiff wire from a clothes hanger works well. The thinner...the better. The left plate is placed so it rotates about the gnomon. To adjust the dial plate to compensate for longitude and the EoT, a copy of the Correct-A-Dial II for your longitude would provide the corrections required. The top plate is rotated in the required direction so the sundial will read clock time. The vernier will help you to accurately correct the sundial to the nearest minute. All that is required is a stand that allows the sundial to be adjusted to the desired latitude. Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics! attachment: st_sundial.jpg --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Sundial Kits
Sunny Day! Over the past little while I have posted a couple more paper sundial kits, which you will find at Sunny Day U. I now have kits available for 12 types of sundials. There are a total of 38 models you can build, 19 for the Northern Hemisphere and 19 for the Southern Hemisphere. These sundials include: Equatorial Sundial Polar Sundial Cycloid Polar Sundial Cross Sundial Equatorial Ring Sundial Star Sundial Horizontal/Analemmatic Sundial CD Sundial Gnomon-less Equatorial Sundial Universal Analemmatic Sundial Digital Equatorial Sundial The latest addition is the digital equatorial sundial. This sundial is 9-inches in diameter and a bit of a challenge. You have a choice of cutting all the numbers out or you can take the easy (?) way out and use a clear transparency. They are all a lot of fun and if I can make them...you can make them. It's just that easy! So drop by Sunny Day U and pick up a set of paper sundial kits. And there are more to come! www.mysundial.ca/sdu/sdu_sundial_kits.html Happy Dialling! Carl Sabanski www.mysundial.ca Get Hooked on Gnomonics attachment: sundial_models.jpg --- https://lists.uni-koeln.de/mailman/listinfo/sundial
mySUNDIAL Forum
Sunny Day! I have just completed setting up the mySUNDIAL Forum and invite you to come and visit. http://www.mysundial.ca/mysundialforum/phpBB2/index.php The format of the forum is such that visitors can go to separate areas where they can ask questions or find resources. If you have a web site dealing with Sundial Theory Design and/or Sundial Construction consider posting a message and a link to your site in one of the Resources areas. There is also an area for Sundial Installations. If you have a web site describing a sundial you built and would like others to see it post a message with a link there. You can also include a picture with your message but it must be available elsewhere on the internet. If you have a sundial but nowhere to put the picture I can post it on my site and you can link to it there. If you offer sundial design and construction services there is an area in the Dialling Corner where you can post a message describing what you have and a link to your web site. Include a couple of pictures of your work. Even if you do not have a web site you can still describe what you have to offer and leave an email address where customers can contact you. If you are looking to buy a specific type of sundial there is also an area for you in the Dialling Corner. Leave a message and perhaps someone can offer you exactly what you are looking for. If you have a sundial web site and can see that this forum may be of use to visitors of your site, please consider linking to it. I would appreciate it. Thank you in advance. And while I'm at it, if you have a sundial web site, I also invite you to join the Sundials WebRing. The Ring is quite small time but has received almost 11,000 page views since its inception. You can access the Ring by going to the bottom of the following page at my site: http://www.mysundial.ca/tsp/tsp.html As the Ring grows there will be more visitors and more hits on your site. Consider giving it a try. Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Egyptian sundial
Sunny Day, The site has a lot of pages but here is how to get to the photos. If you go to The Project and then for example The Gnomon you will end up at this page: http://www.mts.net/~sabanski/sundial/phs_gnomon.htm On the side bar you go to Gnomon Photos and there are a series of pages with photos. This applies for the other pages that are available from The Project that include Dial Plate, Hour Lines and Icons. Happy Dialling! Carl -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of tony moss Sent: Monday, August 07, 2006 8:28 AM To: Sundial Mailing List (E-mail) Subject: RE: Egyptian sundial Carl Sabanski wrote: I don't know how important it is, but I have a site showing the development of a monumental sundial located in my community that I was the project leader for. It was a millennium project. There are many photos that show the construction of all the various parts of the sundial; gnomon, dial plate, hour lines, hour markers, etc. www.mysundial.ca I visited the above and linked to the page with the framed painting at the top but was unable to link to any development images. Where have I gone wrong? Tony Moss. --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Paper Sundial Kits
Sunny Day, I have just posted a number of new paper sundial kits at Sunny Day U. There is one that may be of particular interest to some of you. It is a combination horizontal and analemmatic sundial. I have laid out the dial plate on an 8-1/2 by 11 sheet of paper and maximized their size. This allows for a 5-minute interval between hour lines and points. The date lines on the analemmatic sundial are at 5-day intervals. The sundials are designed for a latitude of 45 degrees and come in models for both hemispheres. But wait! The dial plate is adjustable for latitudes between 25 and 65 degrees. The horizontal sundial has a wide gnomon and illustrates the required layout for the hour lines. It is quite easy to build but does have quite a few parts. The best thing about this sundial combination, as you know, is that it is self-orientating. Place the gnomon of the analemmatic sundial on the correct date line and turn the entire dial until both sundials indicate the same time. It's just that easy! There are arrows on the outer box to help you mark the north-south and east-west lines. Just like operation of the cannon sundial this sundial kit is offered at a blow out pricefree!!! And don't forget to get a Correct-A-Dial II to help you convert from solar to clock time. I have attached a small photo of the sundial. Happy Dialling! Carl Sabanski www.mysundial.ca attachment: horizontal_analemmatic_sundial_model.jpg --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Egyptian sundial
Sunny Day, I don't know how important it is, but I have a site showing the development of a monumental sundial located in my community that I was the project leader for. It was a millennium project. There are many photos that show the construction of all the various parts of the sundial; gnomon, dial plate, hour lines, hour markers, etc. For example, one very interesting task was the placement of the 1200+ pound granite blocks that border the dial plate. I made dozens of ice discs using ice cream pails. Each granite block was placed on 3 of these ice discs. This allowed the machine operator to set the block down, remove the forks or straps and adjust the position of the granite as the ice melted. This technique worked very well. Prior to the construction of this sundial I knew nothing about the design and operation of a real sundial. Our library brought in a few books for me and I did a lot of searching on the internet. I had many volunteers help with construction and fundraising efforts. The sundial is now a focal point and tourist attraction for our town. I invite you to come and visit the Pinawa Heritage Sundial. I am very proud to have had the opportunity to be involved in this project. You can get there via: www.mysundial.ca Happy Dialling! Carl Sabanski -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of tony moss Sent: Sunday, August 06, 2006 4:06 AM To: Sundial Mail List Subject: Re: Egyptian sundial Aleksandr wrote: In English version of my web-site a have just created a new page. Please, visit it and share with me my small success which I have formed in a way of picture story. A beautiful dial, beautifully crafted. Don't miss this link SML members. http://www.sundials.ru/en/egypt_story.html What do you think about this way of data presentation? I wish we could see the development stages of other important dials presented in a similar way. More please Aleksandr! Tony Moss --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: another decorative sundial
Sunny Day John, Not too long ago I prepared a document that tries to explain what to look for when purchasing a sundial. It covers horizontal, vertical and equatorial ring sundials. It has 25 pages of information and includes many illustrations. It also includes the Check-A-Dial, a device that allows you to do a simple check on the sundial to at least get an idea if it is correctly designed. You will find it at the following address: http://www.mysundial.ca/sdu/sdu_check_a_dial.html With this information you can many times determine whether a sundial is incorrectly designed from the pics on their web site. Sometimes you may need to download the pic and use a program that allows you to zoom in and take a closer look. Good luck with your purchase. Happy Dialling! Carl Sabanski www.mysundial.ca -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Thursday, July 06, 2006 5:06 PM To: sundial@rrz.uni-koeln.de Subject: another decorative sundial I am returning a compass sundial I received mail order today. Markings and numbers for time and latitude are in the wrong places. The bubble level is defective. The damping of the compass needle is too low (that ain't ALNICO). I questioned closely when I placed the order to determine if it was made correctly and was assured it was. So I'm out postage. I don't want anyone else to be misled into thinking this is other than a decorative piece, hence this warning. John B Details: www.stanleylondon.com Stanley London 22345 La Palma Ave. Suite 103 Yorba Linda, CA 92887 USA Description: Premium Quality Brass Sundial Compass w/Case Weight: 2.9 Lbs. Price: $95.00 Quantity: 1 Check out AOL.com today. Breaking news, video search, pictures, email and IM. All on demand. Always Free. --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Vertical Direct East West Sundials Dialling Guide
Sunny Day, So, what do you get when you renumber the hour lines of a bunch of Polar Sundial Dialling Guide? A bunch of Vertical Direct East West Sundials Dialling Guides. I have posted these most recent Dialling Guides along with instructions for anyone interested. The Sundial Primer/Sunny Day U now has Dialling Guides available for 10 types of sundials including horizontal, vertical direct north, south, east and west, polar, double gnomon polar, equatorial ring, analemmatic and horizontal shadow plane sundials. The analemmatic (human) and horizontal shadow plane sundials are sized to be interactive sundials and would make great school or playground projects. With the numerous sizes available for some of the sundials and designs for both the Northern and Southern Hemispheres, there are templates available to make over 2500 sundials. Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Check-A-Dial
Sunny Day, A little while ago there was some discussion regarding providing sundial buyers with a guide to assist them with the purchase of a sundial. A guide to tell them what to look for if they are serious about getting a functional and accurate sundial. Comments were made that it is difficult to do this in a few easy steps, which is very true. I have put together a couple of devices and a set of instructions to help the serious buyer evaluate horizontal, vertical and equatorial sundials. It's the Check-A-Dial! If you are interested in getting a copy please visit: http://www.mysundial.ca/sdu/sdu_check_a_dial.html Sunny Day! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Correct-A-Dial II
Sunny Day, Recently I sent and email with an attachment of the Correct-A-Dial II This is a fill in the blanks graph that displays the combined Equation of Time and longitude correction at a single location. The Correct-A-Dial II is now available in a format I'm sure many will like...completed. All the blanks are filled in. There are 61 models that cover all longitudes in 1/4 degree increments. So there is a Correct-A-Dial II for every minute of longitude correction. And these are all FREE! (But if you want to send me $295 USD I don't mind.) If you have a solar time sundial then you need a Correct-A-Dial II. Another SDU Cool Tool! http://www.mysundial.ca/sdu/sdu_correct_a_dial_2.html Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Solar Time Sundials
Sunny Day, One of the problems with having a sundial that reads local apparent or solar time is finding a quick and convenient way of converting the sundial time to clock time at your location. As you know this means applying the corrections for longitude and the Equation of Time. Not always so easy. As part of a new web page I am working on I have drawn a modified Equation of Time graph where you can fill in the blanks to include your specific longitude correction. Cut out the graph, wrap it in plastic and you are good to go. As the web page will not be available for some time I am including it with this message. I hope that some of you find it useful. Happy Dialling! Carl Sabanski www.mysundial.ca cad2.PDF Description: Adobe PDF document --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Conical Gnomon Advantages
Sunny Day, I tried this out with a CAD drawing. I have attached a small file that shows the results. The circle is 1.5" in diameter with a 0.25" diameter hole and the square is 1.5" with a 0.25" square hole.Both plates are1/16" thick. These objects areparallel toa horizontal surface. I set my locationfor a latitude of 50 degrees north and the date is June 20, 2006. I rendered the drawing at intervals of 1 hour from noon to 6 p.m. local apparent time. I did not introduce fuzzinessbut the low resolution of the image seems to have taken care of that. It's interesting to note that the thickness of the plate did not come into play until 6 p.m. Although this is not a vertical surface, it does illustrate the concept. Happy Dialling! Carl -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Chris Lusby TaylorSent: Tuesday, May 09, 2006 6:20 PMTo: John CarmichaelCc: Sundial ListSubject: Re: Conical Gnomon Advantages Hi John, It's not obvious perhaps, but I assure you the shadow on a wall of any thin flat object parallel to the wall is exactly the same shape and size as the flat object, regardless of the sun's direction, if you ignore fuzziness. At low angles of incidence of sunlight, the shadow will be fuzzier but still basically the same size and shape. If the object isn't thin, its thickness will also affect the shadow. Try it with a CD: hold it parallel to a piece of card and move them around. You should be able to verify that the CD's shadow on the card is always circular. The hole in the middle looks a little bit squished at very low angles, but it isn't bad. I mentioned this at a BSS conference a few years ago after a talk by Doug Bateman on his etched glass noon dial. Some didn't seem to believe it at first. Chris - Original Message - From: John Carmichael To: Chris Lusby Taylor Cc: Sundial List Sent: Tuesday, May 09, 2006 7:54 PM Subject: Re: Conical Gnomon Advantages Hi Chris: But I'm not so sure I agree with you about a flat disk with a small hole. The aperturedisk nodusyou described works fine when the sun is not at low angles relative to the face. example: a direct south vertical wall dial around midday. But if it's early morning or late afternoon, won't both the shadow of the disk and the projected solar image elongate into long ellipses? In fact, if the sun is hitting the disk nearly edge on, I bet the solar image projection might disappear all together. If you could manually rotate the disk so that it is perpendicular to the sun, then I would agree with you. But sundial I'm designing is high above a doorway and can't be touched. Interested inanybody's comments on this, John - Original Message - From: Chris Lusby Taylor To: John Carmichael ; Sundial List Sent: Tuesday, May 09, 2006 11:00 AM Subject: Re: Conical Gnomon Advantages Hi John et al, If you want a circular shadow that doesn't elongate when the sun is at a small angle to the dial face, you can use a circular disc, held parallel to the plane of the dial. A large disc witha small circular hole in the middle works very well, too. The tip of a cone is an excellent idea, but I imagine it would only be practical for dials that are above head height, as the tip would seem dangerous otherwise. Chris 51.4N, 1.3W - Original Message - From: John Carmichael To: Sundial List Sent: Tuesday, May 09, 2006 5:12 PM Subject: Conical Gnomon Advantages Hello All; I have always been a big fan of spherical nodi on a perpendicular gnomons.I just like the way they look and when the shadow is only slightly elliptical,sundials with them are pretty easy to read. But in doing some shadow tests for a new wall dial I am designing, I was greatly dismayed by how much the shadow elongates when the sun is at a small angle to the dialface. The shadow ellipseis so stretched along the major axis that the dial would be very difficult to read. So, it occurred to me that a nodus that is the tip of a conemight be better.So instead of guestimating the center of an ellipse, you look at theshadowof the point of the cone. (Totest this, I attached a brass conical plumbob to athreaded brass rod). I figured that a cone would work better than a flat arrow because it has a uniform cross section around it and therefore would cast a uniform shadow as the sun rotates around it during
The Sundial Primer - Analemmatic Sundial Dialling Guides
Sunny Day, It is really great to see some new sundials as we have over the last couple of days. If there are more out there please share them. If you are looking for a sundial project for your yard, school, playground or community perhaps you may want to consider a person-sized analemmatic sundial. I have just posted a number of Dialling Guides for analemmatic sundials designed to be used as human sundials. They are interactive sundials and the user plays the role of the gnomon. There are a total of 81 Dialling Guides that cover the range of latitudes from 25° to 65° inclusive in increments of 0.5°. The Dialling Guides are in the form of tables and provide the co-ordinates for the hour points and the Date Scale. The hour points are provided in increments of 5 minutes and the Date Lines for the Date Scale are provided for days 1, 5, 6, 10, 11, 15, 16, 20, 21, 25 and 26 for each month. The Dialling Guides are designed so the sundial will show local apparent or solar time. Each Dialling Guide contains 4 sets of tables. As the sundials are intended for people there is information available to construct sundials with east-west widths of 2, 3, 4 and 5 metres. Each set of tables contains data for the hour points and Date Scale for one of these sundials. There is also a set of instructions describing a method for constructing the sundial. If you are interested please visit: http://www.mysundial.ca/sdu/sdu_dialling_guides_analemmatic_sundial.html Check out the Dialling Guides for horizontal, vertical, classic polar and double gnomon polar sundials while you are there. Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Question on calculating arcsin
Sunny Day Andrew, You mention that you are designing a sundial for a window. You do not say what type of design you will be using. Will the dial plate be inside or outside? Will the gnomon be mounted on the inside or outside? You probably have taken the following into consideration but I would like to bring it to your attention. If you are creating a stained glass sundial that will be viewed from the inside and the gnomon will be located on the outside, the dial plate will be a mirror image of the layout you will make using the equations. Please visit my "Stained Glass Sundial" page for additional information. I look foreward to seeing your sundial. Happy Dialling! Carl Sabanski www.mysundial.ca ps Thanks for visiting my web site. -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Andrew CorlSent: Monday, March 27, 2006 10:05 AMTo: sundial@uni-koeln.deSubject: Question on calculating arcsin I am in the early stages of designing a sundial for my bedroom window. I used a GPS unit to determine the latitude and thedeclination of the window. I went onto "The Sundial Primer" by Carl Sabanski and downloaded how to design a Vertical Declining Dial. According to "Sundials their Construction and Use" by Mayall and Mayall this is the type of dial for my window. This book is proving to be very helpful. I need the formulas or a website for the formulas for calculatingarcsin and arctan. I am still working out the design but I think it will look pretty cool in a window. When I get it done I will do a posting somewhere of it, and let you know what happened. Sincerely, Andrew Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates. --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: site examiner
Sunny Day, On my web site The Sundial Primer I have a page Sun Charts that shows the dialling data that can be obtained from these charts. I have also compiled a number of sun charts that are available on The Sundial Primer on CD. These charts indicate local apparent or solar time and the files are in pdf format. The first set of sun charts are generated in Cartesian co-ordinates and cover the range of latitudes from 90ºN to 90ºS in increments of 0.5º. As each sun chart covers a 6 month period of the year, two are required for each given latitude. A total of 722 Cartesian co-ordinate sun charts are provided for this range of latitudes. The second set of sun charts are generated in polar co-ordinates and cover the range of latitudes from 79.5ºN to 79.5ºS in increments of 0.5º. Polar sun charts above these latitudes are not provided as the plots are not very clear. Each sun chart covers an entire year. A total of 319 polar sun charts are provided for this range of latitudes. A third set of sun charts for particular locations including the North Pole, South Pole, Arctic Circle, Antarctic Circle, Tropic of Cancer, Tropic of Capricorn and the Equator are provided as a separate set. The Sun Charts were created using an on-line program at the web site of the University of Oregon Solar Radiation Monitoring Laboratory. If you would like a set of Sun Charts for your location please visit their Sun Chart Program web page at: http://solardat.uoregon.edu/SunChartProgram.html Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Butterfield Sundial
Sunny Day, At times I visit eBay to see what sundial items may be available. There's usually a lot of stuff but few unique items However, today I noticed their featured item, which is a Butterfield sundial. It is worth taking a look at and there is only one day of bidding left. There are quite a few pictures of this beautiful sundial. http://cgi.ebay.ca/c-1715-FRENCH-BUTTERFIELD-COMPASS-DIRECTION-SUNDIAL_W0QQi temZ6256611034QQcategoryZ414QQrdZ1QQcmdZViewItem Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Polar Sundial Dialling Guides
Sunny Day, If you are interested in designing a polar sundial with the aid of a template, I have recently added a number of Dialling Guides to my web site that can help you to just that. There are 5 Dialling Guides from which you can design 102 polar sundials. There is also a set of instructions. All files are in pdf format. The Dialling Guides are very easy to use and will help you lay out a variety of polar sundials. They come in two sizes if printed out at full scale. One set can be printed on 8-1/2 by 11 paper and the other on 11 by 17 paper. However, the Dialling Guides can be printed to any size. This gives you the flexibility to create any size of Dialling Guide you need to meet your requirements. The following summarizes the polar sundial Dialling Guides available: 1. Sizes: 6 to 18 inches in 1/2 inch increments; Time Range: 7 a.m. to 5 p.m.; Time Increment: 10 minutes 2. Sizes: 6 to 18 inches in 1/2 inch increments; Time Range: 7 a.m. to 5 p.m.; Time Increment: 15 minutes 3. Sizes: 14 to 18 inches in 1/2 inch increments; Time Range: 6:30 a.m. to 5:30 p.m.; Time Increment: 10 minutes 4. Sizes: 14 to 18 inches in 1/2 inch increments; Time Range: 6:30 a.m. to 5:30 p.m.; Time Increment: 15 minutes 5. Sizes: 18 to 30 inches in 1/2 inch increments; Time Range: 7 a.m. to 5 p.m.; Time Increment: 5 minutes 6. Sizes: 24 to 30 inches in 1/2 inch increments; Time Range: 6:30 a.m. to 5:30 p.m.; Time Increment: 5 minutes Oh.and they are free! If you are interested please come and visit: http://www.mysundial.ca/sdu/sdu_dialling_guides_polar_sundials.html Happy Dialling! Carl Sabanski www.mysundial.ca --- https://lists.uni-koeln.de/mailman/listinfo/sundial
The Sundial Primer - Dialliong Guides
Sunny Day, I invite you to come and check out the “Dialling Guide”. The purpose of the Dialling Guides is to provide an easy method for laying out the hour lines for a number of horizontal and vertical sundials located at various latitudes in either the Northern or Southern Hemispheres. The Dialling Guide is designed to show local apparent or solar time. There are a total of 81 Dialling Guides that cover the range of latitudes from 25° to 65° inclusive in increments of 0.5°. Each Dialling Guide illustrates how to lay out the hour lines for the following sundials in minimum time increments of 5 minutes: 1. Horizontal Sundial - Northern Hemisphere 2. Horizontal Sundial - Southern Hemisphere 3. Vertical Direct South Sundial - Northern Hemisphere 4. Vertical Direct North Sundial - Southern Hemisphere 5. Vertical Direct North Sundial - Northern Hemisphere 6. Vertical Direct South Sundial - Southern Hemisphere The sundials are numbered on the Dialling Guides as indicated above. For any given latitude the Dialling Guides can be used to design the following sundials: 1. Horizontal Sundial 2. Vertical Direct South Sundial 3. Vertical Direct North Sundial In order to design these three sundials for a given latitude, two Dialling Guides must be obtained. The Dialling Guide for the desired latitude is required for the horizontal sundial and one for the co-latitude is required for the vertical direct south and north sundials. This is easy to do. Just find a Dialling Guide close to your latitude in the table and you will have one of your Dialling Guides. The one for your co-latitude is on the same line. Don't forget the instructions. The “Dialling Guides” are free! I plan to offer custom “Dialling Guides” for both horizontal and vertical sundials designed for your specific location. These will be available in both local apparent (solar) or zonal solar (longitude corrected) time versions. You will find the “Dialling Guides” at the following address: www.mysundial.ca/sdu/sdu_dialling_guides.html If you have time check out the Correct-A-Dial Calculator and the Dialling Buddy. Happy Dialling! Carl Sabanski www.mysundial.ca -
Virtual Sundials
Sunny Day, Not too long ago there was a message about sharing computer generated sundial designs. This sounds like a great idea! I have started a page on my Sunny Day U site called Fun-ky Sundials. I would like to invite diallists who have virtual sundials to consider posting them on this page. If you have a web site you can still post some of your designs and we could do the reciprocal link thing if you like...I link to your world and you link to mine. I have started with one design. My skill level is basic but I invite designers at all levels to share their creations. Please visit and consider sending some images of your virtual sundials. www.mysundial.ca/sdu/sdu_funky_sundials.html Happy Dialling! Carl Sabanski www.mysundial.ca -
RE: Is it possible to determine when the sun is due East West?
Hello David, I believe that I can offer a method that might meet the requirements of this group. However, it will depend upon the clarification of a couple of points. What do the terms exact and precisely mean in this case? What deviation, if any, is allowed? And can modern technology be used to create the device that would be used to give the required information? Modern technology would most likely be used to create any simple clockwork. My suggestion and its limitations are as follows. I have a device on my web site called the Dialling Buddy. You can get a pdf file that allows you to build this device at the following address: www.mysundial.ca/sdu/sdu_dialling_buddy.html Once you have built the device all you have to do is set the arrow to the latitude where it will be used. The times when the sun is due east and west is indicated at the Vertical Wall. The day is selected by using the Date Ruler and lining it up with the date lines at either end of the transparent plate. All that is required is a mechanical timepiece such as a pendulum clock set to indicate local apparent or solar time. There are some limitations to this method. The placement of the date lines for a device of this scale is at five day intervals and the time intervals are 15 minutes. This is probably inadequate. The position of the date lines is determined by the sun's declination on a particular day. This value changes slightly from year to year and will introduce a slight error. February 29 is not even shown. Is this a problem? If the device was increased significantly in size, say 24 to 36 inches across, it might be possible to have one day and one minute intervals. For a large device the transparency material used for the top rotating plate could be replaced by plexiglas. The plexiglas could be permanently fixed at the latitude where the device is located. A straight edge would be aligned with the date lines of the day of interest. The times when the sun will be directly east and west would be recorded. The device could be mounted on a wall next to the pendulum clock. The clock would be used to tell you when these times have arrived. Once this device was designed to meet the group's requirements it could be used anywhere. All you need to know is the latitude. One other potential problem is that you would probably like to use a computer to design the device and some sign making technique to ensure an accurate device. If you purchase a mechanical clock this would also be an issue The accuracy of the mechanical clock would also have to be considered. I hope that this helps. Regards, Carl Sabanski www.mysundial.ca -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David Lawrence Sent: Friday, September 16, 2005 3:45 AM To: sundial@rrz.uni-koeln.de Subject: Is it possible to determine when the sun is due East West? At first sight, this looked like a 'trivial' request - but it very quickly became apparent that I don't have enough knowledge, and so I have joined this mailing-list in the hope of getting help from people who may be more able to say whether it is even possible! I am located in Northern Ireland, and (knowing of my hobby-level interest in Amateur Astronomy) - I was recently asked if it would be possible to tell the exact time when the sun is DUE EAST WEST. There is a local group of Muslim 'asylum-seekers', who have been moved here from mainland Britain - and (as part of their religious observance duties), they want to arrange prayer sessions whenever the sun is precisely in both the due East and due West directions. Initially, I thought Easy - just have a vertical stick (or any simple 'nodus'), with some North/South/East/West markings on the ground, and they can watch the shadow until it shows that time. However, two problems - (1) What if it is not sunny, and (2) Even if it is sunny, what would they do during the Winter period, when the sun will rise/set without reaching the East/West directions? My next thought was OK, it should be possible to use a computer program to calculate the times, for every day of the year - BUT the Muslim group will not accept any form of 'modern technology' for this task, and insist that it must be done either by direct observation or obvious mechanical means (apparently some type of simple 'clockwork' will be OK for them, but nothing electronic). My question is therefore Can the moment when the sun is exactly due East or West be determined, in any way which will satisfy this 'fundamentalist' Muslim group - or is it an impossible request? Any thoughts or suggestions from members will be much appreciated. Sincerely, David Lawrence. -- - -
Invitation
Sunny Day, I would like to invite you to come and visit my web site listed below. The Sundial Primer has expanded significantly over the last few months and a new section, Sunny Day U, has been added. Information about a number of additional sundials, over two dozen in total, has been added as well as more design information. The page Sun Charts shows you how to use sun path charts to obtain design information for a number of different sundials. Normally these charts are used in passive solar energy design. There is a link to a site where you can get your own sun charts for any location in the world. Sunny Day U is a new area that has some interesting stuff. There are a number of paper sundial kits available there and more will be coming in the future. If you are a teacher these would make great projects. There are also a couple of devices that you might find useful. The Correct-A-Dial calculator will help you to determine both the Equation of Time and longitude corrections for a sundial. The Dialling Buddy is a device that will provide you with design information similar to the Sun Charts but in a different format. There is even more! And wherever possible, these kits and devices are available for both the Northern and Southern Hemispheres. Come and visit! Happy Dialling! Carl Sabanski www.mysundial.ca -
RE: Gnomen
Hello Robert, If you visit my web site you may find some information that may be useful to you. The Sundial Primer: http://www.mts.net/~sabanski/sundial/tsp/tsp.html If you go to the page The Wide Gnomon there is an illustration of the type of gnomon that I believe Silas Higgon was speaking of. There is also a page that describes latitude correction and also has some illustrations. Carl Sabanski -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Robert Baker Sent: Friday, February 18, 2005 11:07 AM To: sundial@rrz.uni-koeln.de Subject: Gnomen Hullo, I found out about the sundial mailing list from Sundials on the Internet My wife has been given a sundial and before fixing it I have done some investigation.Only one problem - the upper surface of the gnomen is convex - how do I measure the angle of the gnomen ? If I measure in a straight line from the base of the gnomen to it's tip, the angle is 44degrees.Do I use that figure to mount it at an incline ?I live in Scotland - 57 degrees north. Advice would be much appreciated ! Regards, Robert. - -
Ring Sundial, etc.
Good day, I have searched the internet in an attempt to find information regarding the design of ring sundials. In particular, I am trying to find free design software that will provide a display of the design, which then can be used for construction. I have not been successful. If anyone has or is aware of this software I would appreciate knowing where it is located. Also, can anyone generate a dxf drawing file of a cycloid? I can do point calculations and join the points but I would like something more accurate. Thank you for your help. Carl Sabanski The Sundial Primer: http://www.mts.net/~sabanski/sundial/tsp/tsp.html Sundials of the World: http://www.mts.net/~sabanski/sundial/sotw1.htm The Pinawa Heritage Sundial: http://www.mts.net/~sabanski/sundial/sundial.htm -
The Sundial Primer
Good day, I have been working on a sundial site for some time now that attempts to provide novice diallists with the tools necessary to design and build a number of different sundials. It illustrates the use of some of the free design software available on the net. I hope that those individuals wanting to build their first sundial find it useful and that it may even inspire them to actually build a sundial. I would like to invite you to visit my site. It is not commercial in any way. www.mts.net/~sabanski/sundial/tsp/tsp.html If you have a web site and find The Sundial Primer of interest perhaps you might consider linking to it. Thank you. Sincerely, Carl Sabanski -
SUNDIALS Web Ring
Hello I'm Carl and I am from a small community called Pinawa in the province of Manitoba in Canada. I have been enjoying the information that has been passing through this sundial mailing list for almost a year now. There's always something new to discuss and share. I have visited many, many sundial sites on the web in search of information and photos of sundials. I have found the link lists available and they are extensive. I have even included them in the web site I am building which describes the efforts we are going through to build our community sundial. If you are interested, please visit us at: http://www.escape.ca/~sabanski/sundial/sundial.htm I have been working on this site for many months now. What I am writing to you about appears on the web site page listed above. It is the start of web ring called SUNDIALS. This web ring is intended to bring together the sites of those actively involved in the design and construction of sundials as well as those sites which provide educational material about sundials. It is for both business and personal sites. The web ring would obviously not replace the extensive link lists that now exist. However, when a visitor enters a site in the ring, they can then easily move from site to site within the ring. Also, when a visitor enters the Ring Hub they would find a list of all the ring members. This list includes a description of the web sites as provided by their webmasters. I think that the web ring would increase traffic to those sites that participate and make the sundial web surfing experience for visitors more enjoyable. I have set up the SUNDIALS web ring with Yahoo! I am the so-called RingMaster for this particular ring. Each site in the ring is linked to another by a simple navigation bar. You can see this bar on our web site. I have very limited control over how this bar will appear; color, borders, etc. I maintain the ring and can accept/reject sites submitted to the ring. You will probably have to allow cookies while you add your site and enable _javascript_ for the navigation bar to work. It is very easy to become part of the ring. I invite you to join the SUNDIALS web ring and make it a success. Thank you for your time. Happy day! Carl The following is extracted from the Yahoo! WebRing site. To become a member of this Ring, visit this URL:http://edit.webring.yahoo.com/cgi-bin/membercgi?ring=sundialsaddsite You can learn more about sabanskic by visiting Yahoo! Public Profiles:http://profiles.yahoo.com/sabanskic You can learn more by visiting our site. Need Help? Visit Yahoo! WebRing online help:http://help.yahoo.com/help/us/webring
