Re: solar compass
Donald, Your statemant the Abrams Sun Compass is an analemmatic sundial wasn't incorrect. The compass is a number of patterns of analemmatic sundials in one instrument. By that it can be used fore a series of latitudes. Best wishes, Fer. Fer J. de Vries De Zonnewijzerkring http://www.de-zonnewijzerkring.nl Molens http://www.collsemolen.dse.nl Eindhoven, Netherlands lat. 51:30 N long. 5:30 E - Original Message - From: Donald Christensen dchristensen...@gmail.com To: Simon [illustratingshadows illustratingshad...@yahoo.com Cc: sundial@uni-koeln.de Sent: Monday, July 25, 2011 1:19 AM Subject: Re: solar compass I found the Abrams Sun Compass. I incorrectly stated that it was an analemmatic sundial. Thank you for all that replied. Although I have a few photos of it, the one that I want most is the one that I can't find. I saw it on a link about 6 months ago on this forum. The background looked like it was military such as a b24 cockpit, or a tank. Perhaps it is in these replies. My roommate used up all the download and my internet is amazingly slow for the rest of the month. Therefore, I haven't looked at all the links-yet. Donald On 7/25/11, Simon [illustratingshadows illustratingshad...@yahoo.com wrote: This, albeit short, thread has been fascinating. As a naval reserve person, and as an airman later, I stick to the astro compass. The army types do deserve some credit for using methods other than those in use by the other services:) Donald, thanks for raising the topic. Simon Simon Wheaton-Smith www.illustratingshadows.com Silver City, New Mexico W108.2 N32.75 and Phoenix, Arizona, W112.1 N33.5 --- On Sat, 7/23/11, Donald Christensen dchristensen...@gmail.com wrote: From: Donald Christensen dchristensen...@gmail.com Subject: solar compass To: sundial@uni-koeln.de Date: Saturday, July 23, 2011, 5:20 AM A few months back on this forum, I saw a link to a photo of a solar compass. It was an analemmatic sundial that help direct ww2 bombers to their target. Does anyone know where I can find this link? Also, I'm after other stories similar -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorized use of this email is subject to penalty of law. So there! --- https://lists.uni-koeln.de/mailman/listinfo/sundial -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorized use of this email is subject to penalty of law. So there! --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: trying to CORRECT [simplify] the math
On 26 Jul 2011, at 00:59, karon wrote: My grandfather, who I know for a fact had a second grade education, could make a perfectly square corner because he knew he only needed the corner to be 2 on one side, 3 on the other and 5 on the hypotenuse. Slightly off-topic, i know, but I'm glad your grandfather didn't build my house! -- Barry --- https://lists.uni-koeln.de/mailman/listinfo/sundial
SV: facebook, anyone?
What about making a Sundial group or page at facebook? AnneB Tromsø, Norway Fra: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] På vegne av karon Sendt: 25. juli 2011 15:31 Til: 'Sundial List' Emne: facebook, anyone? Are folks here using facebook? That would seem not only a great way to find one another, other than this targeted, topic driven list, but also a great place to post pictures of work as well as work in progress. For anyone interested, please feel free to send me a friend request mentioning dials to http://www.facebook.com/YellowRibbonRosaries Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: SV: facebook, anyone?
Just yesterday, I've created the Facebook group Gnomonica: http://www.facebook.com/groups/195460840507116?ap=1 Please feel free to join and let's see how we can evolve it. - Daniel Roth, sundial mailing list - Original Message - From: anne.bruv...@nordnorsk.vitensenter.no To: sundial@uni-koeln.de, ka...@karonadams.com Date: 26.07.2011 11:51:21 Subject: SV: facebook, anyone? What about making a Sundial group or page at facebook? AnneB Tromsø, Norway Fra: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] På vegne av karon Sendt: 25. juli 2011 15:31 Til: 'Sundial List' Emne: facebook, anyone? Are folks here using facebook? That would seem not only a great way to find one another, other than this targeted, topic driven list, but also a great place to post pictures of work as well as work in progress. For anyone interested, please feel free to send me a friend request mentioning dials to http://www.facebook.com/YellowRibbonRosaries Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: trying to simplify the math
Hi Karon, I also recommend Carl Sabinski's Sundial Primer to you,.as a sundial newbie, and particularly the page Kinds of Time. It explains why, if you want to create sundials which tells same time as your watch, you may have to up your math/trig a bit ! Cheers, Phil Walker - Original Message - From: karon To: 'Alfonso Pastor' ; 'Sundial List' Sent: Tuesday, July 26, 2011 12:59 AM Subject: RE: trying to simplify the math But, see, here is where you make the mistake. Not every craftsman had to understand the higher math, even if they practiced it. a builder could build a straight, tall wall without understanding gravity beyond a plumb line. He could level a basement floor simply by knowing that he would flood an area and then make sure there were no dips or rises above the water level. My grandfather, who I know for a fact had a second grade education, could make a perfectly square corner because he knew he only needed the corner to be 2 on one side, 3 on the other and 5 on the hypotenuse. He had never heard of the Pythagorean theorem, even though he practiced it every day. The basics of drawing a balanced picture are mathematically expressed in Phi or the Fibonacci sequence. But they are also as simple as a fiddle head fern, a snail or your teeth and as complex as a DaVinci Painting. I know there are similar simple relationships that can are and were employed to make accurate sundials as well. they are all based on the higher math but can be expressed in the simple relationships. It is those simple relationships I seek, not the PhD in trig. I don’t need it and don’t want it. For some people, they want the higher math because it proves to them they have a brain. To me, I seek the ancient uses because they WERE the ancient uses that anyone and everyone used. And I prefer to use them in the manner the early craftsman used them. to me, it has more meaning that way. Keep your book list. I’ll find the practical aspects of dialing from folks willing to share them without the pretentiousness of “One MUST understand trig on a doctorate level to make a sundial” if I wanted a doctorate in trig, I would be doing that and wearing a Patek Phillipe. I want the craftsmanship and the tradition and the love of the ancient dial. I have a computer for the trig. Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com From: Alfonso Pastor [mailto:pastor_alfo...@yahoo.es] Sent: Monday, July 25, 2011 7:36 PM To: ka...@karonadams.com Subject: RE: trying to simplify the math Hi Karon. No harm done. Only one thing more: The ancients knowlegde about stelar movements (The Sun is a Star), were deeper than many people think , and the math and trig knowledge they had was also as deep. Look at the Almagesto from Claudius Ptolomeus or Elements from Euclid. Many schollars now have much less knowledge than the maths contained in the mentioned books. Please, dont be cross with me. I only tryed to advise you that the forum is not the appropiate place to learn elementary astronomy or maths, but some times the nuances of the language are very difficult to express in a foreign language and my english is no so rich that I would like. Be sure that I apreciate very much people who wants to learn about a very interesting matter as it is sundialing, but before it is necessary to have a basic knowledge on astronomy and trigonometry. My offer of helping you is sincere, if you need some help I will be very pleased helping you. If you go into other forums in internet you will see that they are none with the high technical level that the Sundial List has. This is the reason because I would not like at all that the only serious and high level forum on sundials in the web becomes a math or astronomy primer to discuss questions that an elementary book on maths or astronomy can answer. Have my best regards. Alfonso --- On Tue, 7/26/11, karon ka...@karonadams.com wrote: From: karon ka...@karonadams.com Subject: RE: trying to simplify the math To: 'Alfonso Pastor' pastor_alfo...@yahoo.es, 'Sundial List' sundial@uni-koeln.de Date: Tuesday, July 26, 2011, 12:57 AM I apologize for the level of my questions and the damage it may have done to the forum. I am certain that the ancients did not use high end geometry and trig as the geometry and trig formulae we use today. I simply thought there were graphic, geometric relationships and ratios that were a bit simpler and more down to earth than having to go into the entire depths of trig. Since I have not yet earned my doctorate in math, trig or
Ok, clarifying my questions
OK, I may be asking the questions incorrectly. I am a visual person, not as much a verbal when it comes to this kind of thing. Drives my hubby crazy when I need something built. I designed a very simple soap cutter for my soap business (which business I have since sold). I KNEW in my head, exactly what the final piece should look like and how it would work. Describing it to the hubby who had the wood working skills to build it was an exercise in frustration on both sidesG ultimately, we built exactly what I wanted and it worked perfectlyG So, with that in mind, I am not a total idiot, present evidence to the contrary! Now, I note in the Shadows program, there is a toggle that allows the program to show the construction marks. These are a series of triangles, angles and circles which, I presume, are based on longitude and latitude and are what make the sundial correct. THIS is what I am trying to understand. Those relationships. I know that the gnomon triangle is used to mark a second triangle which is also a right triangle and it's B side is the same as the height of the gnomon. It looks like the circles used in the same construction are built from these two triangles and I know these triangles are built from the latitude of the location for the sundial. Please tell me that makes my enquiries more understandable! Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
I GOT IT!!
Ok, so, for those who careG two triangle, related but of different sizes and two equal circles. That is all it takes if you have a latitude. With the latitude you draw a right triangle where the right angle is closest to your dial and the angle equal to your latitude is away from the dial. You then make a second right triangle, on top of that triangle where the base is equal to the height of your original triangle and the height of your second triangle is half the base of your original. This gives you a triangle that is similar (mathematically) to the original triangle. The point of the base/hypotenuse of the second triangle then becomes the center of a circle with a radius equal to the length of the hypotenuse of the second triangle. The center of this triangle is also the height of the equinox line on your final sundial. So, you draw a horizontal line across your page, perpendicular to the baseline of your original triangle. Where your first circle crosses your upright (which is along the base of your original triangle) is the center of your second circle. Draw that circle. Where the second circle intersects the perpendicular, you then measure at 15 degree intervals. Where these lines intersect your equinox mark your hours at the equinox. You then mark back from the equinox hours to the original point, the CBA angle of the original triangle (which will be your style or gnomon) and you have your angles for your hour lines. Ok, now I have the simple geometry from the latitude figured, I need to understand the correction for longitude. That is my next hurdle!! Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
SV: Ok, clarifying my questions
I have not used the Shadows program as part of my joy with sundials is to figure out the formulas and geometry myself, exercising my mathematical muscles which are not used that much in my everyday life. I just want to poit out this (in the danger of adding some confusion and frustration): you don't need triangles to make a sundial. The simplest sudials are the equatorial sundial made of a circle divided in 24 with a gnomon (rod) through the centre. The Sky Wheel that Roderick Wall shared the link to, is one version of equatorial sundials. The gnomon is needs to be at the same angle to the horizontal plane as your latitude, slanting along the north-south line (sorry, I said this before, didn't I?), but the dial plate does not need to touch the ground. Hence no triangle :-) Also there are the armillary sundials that are all circles :-D (Sorry for derailing from triangles) Best AnneB Fra: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] På vegne av karon Sendt: 26. juli 2011 14:52 Til: sundial@uni-koeln.de Emne: Ok, clarifying my questions OK, I may be asking the questions incorrectly. I am a visual person, not as much a verbal when it comes to this kind of thing. Drives my hubby crazy when I need something built. I designed a very simple soap cutter for my soap business (which business I have since sold). I KNEW in my head, exactly what the final piece should look like and how it would work. Describing it to the hubby who had the wood working skills to build it was an exercise in frustration on both sidesG ultimately, we built exactly what I wanted and it worked perfectlyG So, with that in mind, I am not a total idiot, present evidence to the contrary! Now, I note in the Shadows program, there is a toggle that allows the program to show the construction marks. These are a series of triangles, angles and circles which, I presume, are based on longitude and latitude and are what make the sundial correct. THIS is what I am trying to understand. Those relationships. I know that the gnomon triangle is used to mark a second triangle which is also a right triangle and it's B side is the same as the height of the gnomon. It looks like the circles used in the same construction are built from these two triangles and I know these triangles are built from the latitude of the location for the sundial. Please tell me that makes my enquiries more understandable! Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Ok, clarifying my questions
Yes, but, equatorial sundials have their limitations. And, of course, different people prefer different styles. An equatorial sundial would be THE best dial to use at or near the poles. Closer to the equator, I am not certain but I would suspect they would not be the best. By the time you make it as far South as I live, a vertical or horizontal would be easier to read. Of course, accuracy is a function of the skill of the sundial maker and the placement of the dial. But, it seems that different styles of dials are simply better suited, for ease of use, in different latitudes than others. While I am, currently, concentrating on understanding a simple horizontal sundial, I think a vertical would probably be the most easy to use in my area. I live in the Deep South of the US at 35 degrees of Latitude. I large parts of my yard that never see sunlight because of buildings and some that see sun every day (unless something is built or placed in the way. Whereas some places further north experience something much closer to having the sun move around the sky than I do. down here, the sun only gets half the skyG where some parts of the world, it can have three quarters. This makes a difference in dialing. Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com From: Bruvold Anne [mailto:anne.bruv...@nordnorsk.vitensenter.no] Sent: Tuesday, July 26, 2011 9:22 AM To: ka...@karonadams.com; sundial@uni-koeln.de Subject: SV: Ok, clarifying my questions I have not used the Shadows program as part of my joy with sundials is to figure out the formulas and geometry myself, exercising my mathematical muscles which are not used that much in my everyday life. I just want to poit out this (in the danger of adding some confusion and frustration): you don't need triangles to make a sundial. The simplest sudials are the equatorial sundial made of a circle divided in 24 with a gnomon (rod) through the centre. The Sky Wheel that Roderick Wall shared the link to, is one version of equatorial sundials. The gnomon is needs to be at the same angle to the horizontal plane as your latitude, slanting along the north-south line (sorry, I said this before, didn't I?), but the dial plate does not need to touch the ground. Hence no triangle :-) Also there are the armillary sundials that are all circles :-D (Sorry for derailing from triangles) Best AnneB _ Fra: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] På vegne av karon Sendt: 26. juli 2011 14:52 Til: sundial@uni-koeln.de Emne: Ok, clarifying my questions OK, I may be asking the questions incorrectly. I am a visual person, not as much a verbal when it comes to this kind of thing. Drives my hubby crazy when I need something built. I designed a very simple soap cutter for my soap business (which business I have since sold). I KNEW in my head, exactly what the final piece should look like and how it would work. Describing it to the hubby who had the wood working skills to build it was an exercise in frustration on both sidesG ultimately, we built exactly what I wanted and it worked perfectlyG So, with that in mind, I am not a total idiot, present evidence to the contrary! Now, I note in the Shadows program, there is a toggle that allows the program to show the construction marks. These are a series of triangles, angles and circles which, I presume, are based on longitude and latitude and are what make the sundial correct. THIS is what I am trying to understand. Those relationships. I know that the gnomon triangle is used to mark a second triangle which is also a right triangle and its B side is the same as the height of the gnomon. It looks like the circles used in the same construction are built from these two triangles and I know these triangles are built from the latitude of the location for the sundial. Please tell me that makes my enquiries more understandable! Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Longitudinal shift?
Do I have this correct? In order to correct for longitude, you determine the degrees from the prime meridian of your time zone. Then, offset the 15 degree hour angle from the center of the top circle. Your first angle is offset from that to mark noon at equinox, then, the rest of your angles are marked at 15 degrees from that mark in both directions, creating non marks on the equinox all the way across. From there, you simply move back to marking your lines from the noon equinox mark to the CBA point and these are your hour lines. Do I have this correct? Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Ok, clarifying my questions
Yeah, sounds like I am off by about 90 degrees, doesn’t it. I’ll get thereG I suppose an analemetic would be better at the poles. Something with a central pole and hours arrayed around the gnomon. I am still working out the logic in my head. Seems to me that at the poles would be the best place to use a depressed hemispheric sundial. The sun would, in the course of the year, allow light to reach deeper into the bowl of the depressed hemisphere and would reach all sides of the bowl. It is just all so cool to learn and figure. It require spatial thinking on a scale that most people just don’t use because they don’t have to. And that is fun! Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of R Wall Sent: Tuesday, July 26, 2011 10:09 AM To: sundial@uni-koeln.de Subject: Re: Ok, clarifying my questions Hi Karon, You may suspect and may not be certain about a equatorial sundial being the best type of sundial closer to the equator. The name “Equatorial” may give a hint. In fact it is better than a horizontal sundial, you’ll have fun designing a horizontal sundial for the equator. Roderick Wall. From: karon mailto:ka...@karonadams.com Sent: Tuesday, July 26, 2011 11:38 PM To: 'Bruvold Anne' mailto:anne.bruv...@nordnorsk.vitensenter.no ; sundial@uni-koeln.de Subject: RE: Ok, clarifying my questions Yes, but, equatorial sundials have their limitations. And, of course, different people prefer different styles. An equatorial sundial would be THE best dial to use at or near the poles. Closer to the equator, I am not certain but I would suspect they would not be the best. By the time you make it as far South as I live, a vertical or horizontal would be easier to read. : 07/21/11 --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Ok, clarifying my questions
you'll have fun designing a horizontal sundial for the equator. It's not too difficult to draw the hour lines for a horizontal sundial for the equator with the help of some friends from this list who provided very useful programs and equations. Some pictures of paper/card sundials that work on the equator are here: http://leewm.freeshell.org/origami/ --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Ok, clarifying my questions
Hi Kenneth, Maybe it’s my choice of words. Would I be correct in saying that generally the term “Horizontal Sundial” doesn't normally refer to a “Polar Sundial”. Roderick. From: Kenneth wee-meng LEE Sent: Wednesday, July 27, 2011 4:09 AM To: sundial@uni-koeln.de Subject: RE: Ok, clarifying my questions you’ll have fun designing a horizontal sundial for the equator. It's not too difficult to draw the hour lines for a horizontal sundial for the equator with the help of some friends from this list who provided very useful programs and equations. Some pictures of paper/card sundials that work on the equator are here: http://leewm.freeshell.org/origami/ --- https://lists.uni-koeln.de/mailman/listinfo/sundial No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1390 / Virus Database: 1518/3779 - Release Date: 07/21/11 --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Success!!
Ok, I made my first practical dial using JUST protractor, straight edge and compass. NO SOFTWARE! (except online to triple check Longitude and latitudeG) I even made adjustment for longitude. Lo and behold, it WORKED! Still had to add 1 hour to compensate for daylight savings time but, other than that, it was watch accurate! WOOHOO! So, now I understand the geometric relationships that create the hour lines relative to the gnomon. Now I need to learn how to calculate the declination lines. That is my next hurdle. Meanwhile, I will be playing with making nicer looking dials of wood and, perhaps, stone. I am going to be looking for nice stone I can use to make dial faces. For those who work in stone, what tools do you usually use to cut and etch in stone? Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
trying to CORRECT [simplify] the math
Well, that was MY mistake, not his. I was typing Fibonacci sequences rather than Pythagorean sequencesG I had my sequences mixed up. But, I assure you, my grandfather had them right. Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Mr. Barry Wainwright Sent: Tuesday, July 26, 2011 5:34 AM To: Sundial list Subject: Re: trying to CORRECT [simplify] the math On 26 Jul 2011, at 00:59, karon wrote: My grandfather, who I know for a fact had a second grade education, could make a perfectly square corner because he knew he only needed the corner to be 2 on one side, 3 on the other and 5 on the hypotenuse. Slightly off-topic, i know, but I'm glad your grandfather didn't build my house! -- Barry --- https://lists.uni-koeln.de/mailman/listinfo/sundial
RE: Ok, clarifying my questions
Maybe it's my choice of words. Would I be correct in saying that generally the term Horizontal Sundial doesn't normally refer to a Polar Sundial. A horizontal dial to my understanding,has the hour plate, flat on the ground. A large majority of the sundial authors/manufacturers live in the upper/lower latitudes where the gnomon is triangular shaped. The angle of the gnomon which casts the shadow corresponds to the lattitude. I didn't understand that previously and for many years since I was a little boy, when I followed the instructions to try to make those sundials with a triangular shaped gnomon, they never worked for me at the equator and I had the wrong impression that sundials were inaccurate ... u ntil, I came across this group and download shadows pro where it could emulate the shadows at different parts of the world. As one approaches the equator, the latitude approaches 0 and the angle of the casting side of the gnomon would become horizontal. Hence, a Horizontal Sundial begins to look like a Polar Sundial. The pictures of the paper sundials that didn't have the polar name to it, actually had a 1 deg gnomon on it. But come to think of it, it won't make much of a difference as my paper sundials are rather small. With Valentin's programs, I learnt that some sundials worked well in the higher latitudes but didn't work well near the equator and vice versa. Just like the recent posting on the beautiful beer glass sundial, it won't work near the equator. When the Sun is directly on top, no shadow ring would be cast on the opposite side of the glass. Yes, so I think generally the term Horizontal Sundial doesn't normally refer to a Polar Sundial; unless it's built for the equator :) Disclosure: I came to that conclusion by making paper sundials with the computer programs provided by members of this list and by observation. I'm not an expert sundialist/artist but I love the various ingenious ways members here think of to cast a shadow and their beautiful art work. --- https://lists.uni-koeln.de/mailman/listinfo/sundial
materials
From an artistic standpoint, I am very interested in design. What kinds of materials do you guys use and how do you handle them, if you use stone, how do you mark them? how do you attach the gnomon? With most medals, people use various etching techniques. How do you make your masques for etching? What types of decoration do you like to use and where do you find your inspiration? All of this is fascinating and provides food for thought for someone looking at a new artistic medium. See, for me, making a working, precise dial is wonderful. But, the working precise dial is not the end of the journey. It is the basis for the artistic endeavor that will be the final piece. How you market your work is interesting as well and probably heavily influences the type of work you do. Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial
special events
Hello again; The equinoxes and solstices are special solar events for all of us. The people who live in the tropics have another special event, when the sun is directly over their latitude. Does this special day have a name? Does anyone take notice of it or mark it on dials or have a celebration? thanks again; brent --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: special events
not sure if it has a name, but they sure don't get much of a shadow at noon on that day :) On 2011-07-26 23:26, Brent wrote: Hello again; The equinoxes and solstices are special solar events for all of us. The people who live in the tropics have another special event, when the sun is directly over their latitude. Does this special day have a name? Does anyone take notice of it or mark it on dials or have a celebration? thanks again; brent --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
