Re: IAPS Reference

2010-07-26 Thread Edley McKnight
Hi Larry, It is probably the International Association of Physics Students I've seen references like that several places. I don't know how to contact them. Regards, Edley. Date sent: Mon, 26 Jul 2010 13:28:16 -0700 From: Larry McDavid lmcda...@lmceng.com

Re: Would this dial work?

2010-03-10 Thread Edley McKnight
- Original Message - From: Edley McKnight To: Chris Lusby Taylor ; sund...@rrz.uni-koeln.de ; patrick_pow...@compuserve.com Sent: Tuesday, March 09, 2010 5:16 AM Subject: Re: Would this dial work? Hi Peter, Chris, Patrick, and all. I agree with Chris

Re: Re: Quick Bifilar

2010-03-10 Thread Edley McKnight
Dear Shadow Watchers, This is to thank all those who responded to the 'Quick Bifilar' question, both on and off line. I see now that the equations such as those published by Fred Sawyer and others are sufficient to the purpose, needing only to be formatted to put the variables on different

Re: Would this dial work?

2010-03-08 Thread Edley McKnight
Hi Peter, Chris, Patrick, and all. I agree with Chris if the plane of the watch is positioned horizontally, but from the patent, there is no regard taken for positioning the watch other than to magnetic north. If the central axis of the watch was made parallel with the earth's axis it would

Re: Quick Bifilar

2010-01-13 Thread Edley McKnight
Hi Chris, Yes, I believe so also, a rectangular or other base could use a rotatable ring with the thread supports attached so that the orientation could be corrected as well as making the equiangular dial face rotatable. So, Joe Sundial Maker could have such a dial mounted to his/her van or

Re: Quick Bifilar

2010-01-06 Thread Edley McKnight
and heights. Given GPS, an inclinometer, etc. Maybe this is too much to hope for? Yes, and Happy New Year also! Edley McKnight Dear Edley, For a bifilar dial with 15 degreeequal angle hourly separation on any arbitrary surface anywhere in the world, calculation of the positions and heights

Quick Bifilar

2010-01-05 Thread Edley McKnight
. Is there one out there somewhere? I'm assuming the threads are parallel to the dial surface. Yes, and a happy New Year to all of you! Best Wishes! Edley McKnight --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Email address

2010-01-05 Thread Edley McKnight
report the problem so that apparent reliability is false. Douglas Hunt does have some older email addresses found in the list archive of before 2000 that still work. Best Wishes! Edley McKnight In message 4adc9e04.2010...@lindisun.demon.co.uk Tony Moss t...@lindisun.demon.co.uk

Re: Location aerial photography online

2009-10-30 Thread Edley McKnight
So did I til I used the Internet Exploder from Microswift. :-) Apparently the internet explorer is required. In my area, I found no improvement over Google Earth. Edley. When I go to www.bing.com I get a search engine but no maps. Thibaud At 14:40 30-10-2009, J. Tallman wrote:

Re: looking for I.J. Kragten

2009-10-19 Thread Edley McKnight
de Vries on this list would know a great deal more. I hope this helps! Edley McKnight I'm very interested in the Navicula de Venetiis altitude dial. In 'Transmitting Knowledge: words, images, and instruments in early modern Europe' By Sachiko Kusukawa, Dr. Catherine Eagleton cites Ingrid

RE:Re no analemma

2009-10-07 Thread Edley McKnight
Frank, Fer, Dialists, For the Bifilar dial with equiangular hour lines, so that a portion of the dial face can be rotated and set by a scale to compensate for EOT, the simplest I've found is at: http://www.de-zonnewijzerkring.nl/eng/bif-zonw-procedure-1.htm And is done by hand by Fer de Vries.

Re: no analemma

2009-10-06 Thread Edley McKnight
-zonnewijzerkring.nl Molens http://www.collsemolen.dse.nl Eindhoven, Netherlands lat. 51:30 N long. 5:30 E - Original Message - From: Edley McKnight To: Frank Evans ; Sundial Sent: Monday, October 05, 2009 12:12 AM Subject: Re: no analemman Hi Frank

Re: no analemman

2009-10-04 Thread Edley McKnight
Hi Frank, Dial friends, If the dial is going to have adjuistments, it seems simpler and better to simply have the dial mounted to a hinge parallel to the earth's axis. Then, when the dial varied from civil time by an unacceptable amount, one could just rotate it slightly about the hinge til

Re: Solor Coordinate Calculation

2009-09-23 Thread Edley McKnight
Hi James, Dialists, Not exactly the polynomials, but ICE (Interactive Computer Ephemeris) from the Naval Observatory originally, is still available and covers up to 2047. It is freeware and now public domain. It is available from a number of places. It is a DOS program and the latest

Re: gnomon protection - shadow ridge dials

2009-09-14 Thread Edley McKnight
Hi Rodney, I finally was able to make my browser work on flickr. Yes, this would work, I also thought of it as on a flat surface with points or with curving ridges for intermediate time as did Dave Bell, but, this idea is neat also. Thanks for drawing it up! Edley. I made a quick POV-ray

Re: Easy Shadow Ridge Dial Plaque

2009-09-14 Thread Edley McKnight
Dear Dialists, I agree with a number of those that have sent comments. How would one tell a lay person how to set up one of these shadow ridge plaques in their area?? Possibly one could have one of Dave Bell/Rodney Heil's Anemone dials attached temporarily? There must be some better ideas

Re: gnomon protection - shadow ridge dials

2009-09-07 Thread Edley McKnight
Claude, Dialists, Wow! Thanks Claude! Edley See the work of Roger Berry : http://rogerberry.info/Sculpture/SanMateo/san-mateo-shadow-04.html Here he has a field of shafts at the angle of incident sunlight. He has commented At any moment during the day one pole casts its shadow on

RE: A Human Horizontal Sundial?

2009-09-07 Thread Edley McKnight
Hi John, Yes, the spot is hard to see on the first image. It seems that it might be easier to get people to stand on the correct spot if the converging hour lines were truncated before they converge. Maybe also, a bright color on the correct spot It is a neat idea though. Edley. Hi Joel:

Easy Shadow Ridge Dial Plaque

2009-09-07 Thread Edley McKnight
Dear Dialists, There have been a number of suggestions that it would be very difficult to make a Shadow Ridge Dial plaque to commemorate a specific time, date and locality. I thought it might be also, til this very simple way struck me. 1.0 Machine the plaque with an end mill, so that all

Re: gnomon protection - shadow ridge dials

2009-09-04 Thread Edley McKnight
Rodney and others, Well, yes, it can be thought of in that manner, but it is really just sections of the shadow plane of the gnomon made solid. It does not have to be the shadow of a wire or rod gnomon, but that is what lept to my mind due to my work with ridge dials. It could be composed of

Re: gnomon protection - shadow ridge dials

2009-09-04 Thread Edley McKnight
, Edley McKnight e...@dcwisp.net wrote:   It could be composed of the solid shadow sections of a nodus gnomon  for that matter and be just tilted columns. I mainly thought of this  a way to add sundials to building surfaces or tombstones without a large protruding gnomon

Re: sailors

2009-09-02 Thread Edley McKnight
Good Friends, It is important to remember that the sea and air are now as crowded as the land with transportation. Much of the sea lanes are filled with automated shipping, so that if we wander off our course into their lanes, we will be just run over. Also, how many of us would attempt to

gnomon protection - shadow ridge dials

2009-09-02 Thread Edley McKnight
Dear Sundialers, This is just a short note to introduce the shadow ridge dial which helps to eliminate gnomon damage. The design will work with any type of flat surface sundial using a virtual gnomon that is parallel to the earth's axis, but this example shows a cross-section of a polar

Re: Economy Hurts Sundial Sales

2009-07-21 Thread Edley McKnight
Hi John, To some extent it is marketing, to some extent supplying excellence. An old formula: Go where the money is. Learn what the money wants Learn to make that( hopefully in a way hard to duplicate, or in a small niche of your own. Let the money know you've got it. Sell it to them ,

Re: pupil project

2009-06-23 Thread Edley McKnight
Hi Thomas, I've tried 3 browsers and two computers and all I get at your link is a blank Picassa page, ie. no picture. Can you describe the type, materials you have in mind? Edley. Hi, I will hold a half-day project with students next Monday. The first 60min we will try to understand what

Re: Pupil Project

2009-06-23 Thread Edley McKnight
Hi Again, Yes, I finally see the sundial you mention. I think I would suggest making an universal ring dial since it would be usable just about anywhere. A link to making one from cardboard is here: http://leewm.freeshell.org/origami/ringdial.pdf Another link to making one using an embroidery

Re: Burnsville quilt square sundial

2009-06-05 Thread Edley McKnight
Thanks Bob, We are happy to hear of your progress. Please continue to let us know how it goes. Edley. Greetings again to my sundial friends. This is to update you on the quilt square sundial we are making in Burnsville, North Carolina, as I had mentioned in an earlier posting. That earlier

Re: Carmichael Sundial Photos

2009-06-02 Thread Edley McKnight
Dear John et al, Wow, you Do have some gorgeous sundials there! Thanks for making them available for viewing! Best Wishes, Edley. Hi Friends: I have posted photographs of my best sundials at http://www.flickr.com/photos/jlcarmichael/ (because my business website webmaster has been sick

3D point clouds

2009-05-31 Thread Edley McKnight
Dear Sundialers, With all the academic advances in resolving 3D point clouds by analyzing calibrated multiple digital images, using each pixel as a uniformly spaced color and direction spacial sample, is there anyone using this technology to design Sundials using existing shadow creating

Re: Off topic but I thinkyou'll enjoy this.

2009-04-18 Thread Edley McKnight
Thanks Tony, I have captured it and made copies for all my family so that we could watch it as often as we like and not tie up the net. Wonderful indeed! Edley. Fellow shadowWatchers. The following link has nothing whatsover to do with sundials but it

Re: What is covered by this patent? Compressed patent

2009-04-10 Thread Edley McKnight
Hi Peter and all, The following are some of my impressions on the changes in patent policies over some period of years. 1. Patents are now written with claimed items over a broad set of areas, with the fiurther stipulation that all of the claims not thrown out in court continue to stand.

Sundial List Archive

2009-04-09 Thread Edley McKnight
Brent and all, For those that might not know, the archive of this list is at http://www.mail-archive.com/sundial@uni-koeln.de/ There have been a lot of good discussions on many subjects. Best Wishes! Edley McKnight --- https://lists.uni-koeln.de

Re: The perfect sundial?

2009-04-08 Thread Edley McKnight
that the outer tubes might not be fully dark, but they should be darker and all evenly lit. One could just mount this assembly on a theodolite base in order to check it out. Good Luck! Let us know how it goes! Best Wishes! Edley McKnight Hello; Existing Sundials are pretty much worthless

Re: better questions

2009-04-08 Thread Edley McKnight
to be discovered and enjoyed in this area. Best Wishes! Edley McKnight Maybe the important questions are- Is the sun in a unique position ...every day of the year? every minute of the year? every second of the year? If the answer is yes, I think I can make the perfect sundial

Re: International Year of Astronomy 2009

2009-01-02 Thread Edley McKnight
Since Dialists are first in history, the sundial is useful for years at a time, shouldn't it be a Decade of Sundials, where other astronomical events are assigned only a yearly time interval? If not, then at least the full cycle of four years should be chosen. Especially since all solar

Re: Thunderstruck sundials

2008-12-21 Thread Edley McKnight
and others on the list. Keep us informed if you would please. Edley McKnight. Date sent: Sun, 21 Dec 2008 21:46:52 -0500 From: Bob Hampton sundi...@cydev.com To: sundial@uni-koeln.de Subject:Thunderstruck sundials Thunderstruck greetings to all on this list! My name is Bob

Coloring

2008-04-26 Thread Edley McKnight
Dear Mac and All, Have you given any thought to coloring the concrete? Or using one of those extremly white top-coats? Are you casting it upside down? Let us know how it goes. Best Wishes, Edley. On 26 Apr 2008 at 6:01, Mac Oglesby wrote: Date sent: Sat, 26 Apr 2008 06:01:45

Re: Request for suggestions

2008-04-25 Thread Edley McKnight
Hi Mac and other dialists, There are so many Stainless steels, some of which will degrade in various climates and locations, Fine here, but down the coast 25 miles it has problems sort of thing. Coloring some stainless works well, others not. Those Stainless that include Chromium can be

Re: Anodising aluminium

2008-04-25 Thread Edley McKnight
Yay Tony! This is close to the process I used. Worked for me. Thanks! Edley. On 25 Apr 2008 at 12:34, Tony Moss wrote: Date sent: Fri, 25 Apr 2008 12:34:40 +0100 From: Tony Moss [EMAIL PROTECTED] To: Sundial Mailing List sundial@uni-koeln.de

Re: Fabric sundial

2008-04-21 Thread Edley McKnight
Dear Fer, Despina, Peter, dialists, Yes, an array of dials for different Latitudes, perhaps for different dates as well, would be a great idea! Perhaps your own Shadow Plane dials from the article in December, 1999 of the NASS Compendium: Shadow Plane Sundials - II Maddux, Oglesby deVries

Re: flat sundial

2008-04-19 Thread Edley McKnight
Hi Despina, The NASS Compendium Article was harder to find than I thought. It is Light As Shadow - Sundials Without Gnomons By Mario Catamo Cesare Lucarini Volume 6 No. 3 September 1999 On 18 Apr 2008 at 13:38, Edley McKnight wrote: From: Edley McKnight [EMAIL PROTECTED

Re: flat sundial

2008-04-19 Thread Edley McKnight
Despina and dialists, Another flat fabric dial, and this one printable, would be based on a Shadow Plane design. If screen printed with thick ink, lines radiating outward, the line that cast the minimum shadow would be the nearest angle. Again this is an Azimuth indicator, but could be done

Re: flat sundial

2008-04-18 Thread Edley McKnight
Hi Despina, Of Course. There are many possible designs workable in fabric that don't have something sticking up from the surface. The type that strikes me first is one extropolated from one made on an old CD where the spiral markings show light direction and can be made easily into an

Re: Monumental Sundial

2008-02-12 Thread Edley McKnight
! Edley McKnight PS. John, I decided to let the list know. --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: sundial - building integration

2007-11-05 Thread Edley McKnight
Hi Hendrik, fellow sun movement observers, It can be said, not too far off, that all solar shadows of static objects falling on any other static objects, including buildings, ARE sundials! They just need to be properly marked for date and time, if they haven't been already. With modern

Re: New Project

2007-10-10 Thread Edley McKnight
Dear Art and sundialers all, What a wonderful idea! I'd like to suggest a type of sundial for those folks that: a: don't own the building they are in. b: don't have access to the outside of the building c: have no sunlight coming through or hitting a window or opening. It is the Scenic Shadow

Re: Dialing with Windows Vista

2007-09-17 Thread Edley McKnight
Roger Bailey, John Carmichael, and all Thanks for the great heads up on Microsoft Vista. It is great to hear that some of my favorite Sundial programs would still work. Sorry to hear about the hardware problems though. We've accumulated so many older pieces of specialized equipment that would

Re: GalleryGlass: was Plastic Fake Stained Glass

2007-08-15 Thread Edley McKnight
Thanks Peter! This looks like one of the ways I will go. Best Wishes, Edley Dear Edley, Another try at attaching the thumbnail. best wishes, Peter --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Plastic Fake Stained Glass

2007-08-10 Thread Edley McKnight
anymore. If you want some, let me know off line and I'll send it to you. John p.s. The backlight film has a smooth side and a rough side. You should print on the rough side. _ From: Edley McKnight [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 08, 2007 12:27 PM

Re: Stained Glass Sundial References

2007-08-08 Thread Edley McKnight
Hi John, Thanks for the References! Related to SGS are there any references that you've run into on using Window Tint Film or Static Cling Film for making Stained Glasslike Sundials?? I have been interested in both cut out pieces type designs and print on a sheet and stick it up designs The

Re: Self-Motivated Contest for Building a Gargantuan-Sundial Monument

2007-07-29 Thread Edley McKnight
Hello Mashallah, I agree with your desire to have Architects with Sundial experience and interest to build great buildings with sundials an integrated design element. This would be the ideal case, of course.  Some other buildings could still have sundials added to them, possibly by the same

oops, monofilar was Re: Self-Motivated Contest for Building a Gargantuan-Sundial Monument

2007-07-27 Thread Edley McKnight
Dear All, I meant monofilar designs not monofiliment designs Like single edges and points. A representative article is in NASS Compendium 5-3 by Gianni Ferrari, included in that issue was a copy of Gianni's Sund98P program that can calculate them. (I seem to be confusing fishing with

Re: Self-Motivated Contest for Building a Gargantuan-Sundial Monument

2007-07-25 Thread Edley McKnight
Greetings All, Although this is a very great idea, I'd take it further. Using the wonderful concepts, equations and software for monofiliment designs by Fer deVries and Gianni Ferrari among others, many of the shadowing and shadowed surfaces and edges can be incorporated into beautiful

Re: Self-Motivated Contest for Building a Gargantuan-Sundial Monument

2007-07-24 Thread Edley McKnight
Hi All, Instead of requiring an architect, all complexes of building, indeed, all outdoor scenes involve shadows that can be fairly easily incorporated into solar time keeping purposes.  Some of this can be just fun and perhaps temporary, but some could incorporate permanent markings. The basis

Re: Help Oscar!

2007-07-11 Thread Edley McKnight
Dear Frank and All, Your observations are very good,  the number of adults and children that can properly use even a ruler seems small.  Your using a vertical pole as a gnomon is worthwhile.  A knowledgeable and able person  could establish a dial center offset toward the equator in such a way

Re: Sandsculpture Sundial

2007-06-29 Thread Edley McKnight
Hi Tony, Yes, you are correct, some clay is the key to it. There are sandcastle competitions every year here in Oregon at Cannon Beach. Every sandcastler I've observed brings in buckets and tubs with a fair amount of clay smearing on them. Just a few percent seems to do the job. Spraying

Re: Direct South Dial

2007-06-22 Thread Edley McKnight
also perpendicular to the 12 O'clock line, the other hour lines can be sighted out in 15 degree steps, by eye or by string or laser at night. It is more likely that the dish is an 18 inch diameter parabola, but who knows? Hope this helps! Edley McKnight Greetings all, Several months ago I

Virtual Gnomon, Virtual Hinge for EOT Adj.

2007-06-20 Thread Edley McKnight
Hi Dialmakers, A simple pair of pivots allows adjusting a dial for Longitude, EOT and daylight savings differences. In this case we are talking about a horizontal dial with the standard gnomon replaced by a Virtual Gnomon, that is a vertical pin that, measured from dial center, subtends the

Re: simultaneous sunset

2007-06-19 Thread Edley McKnight
Hello Franks and all, I assume we are to neglect altitude differences and use the fictional spherical earth model, but just what do we mean by 'the same time'? I would assume that when two or more persons look at their watches, corrected for standard zone time, that they read the same

Rotating Sundials

2007-06-15 Thread Edley McKnight
to show the time in other time zones as well. An horizontal dial rotated a few hours and renumbered lets the rain and leaves run off better. What other uses do polar axis rotated dials have? Enjoy the Light! Edley McKnight --- https://lists.uni

Re: Southern/Northern exposure

2007-06-12 Thread Edley McKnight
Hi Dave and all, Yes Dave, I think Equatorial Exposure and Polar Exposure might be the correct terms that would work in either hemisphere. Thanks, Edley. Edley McKnight wrote: Dear Dialers, I keep making the assumption that a nice room that gets a lot of sun mid day has a Southern

Re: Poncet Platform: was Re: Equation of Time

2007-06-10 Thread Edley McKnight
Hi Peter, Your small jpgs came through fine. There seem to be a number of Poncet patents with curved surfaces, to answer other questions. This embodyment seems sturdier and less likely to shift. It appears to be an indoor dial, through a south window, yes. It looks really good! I wish I

Southern/Northern exposure

2007-06-10 Thread Edley McKnight
that is acceptable. Thanks! Edley McKnight --- https://lists.uni-koeln.de/mailman/listinfo/sundial

RE: Equation of Time

2007-06-06 Thread Edley McKnight
Hi Roger, Yes, Now that the concept finally comes fully in to mind, this is a great idea! As you say only about 4 degrees of rotation, a small width of incllined plane for the two sliding contacts, would do it for just EOT correction. Quite compactly too. To handle both Longitude and EOT

Equations of Times

2007-06-05 Thread Edley McKnight
, but what can you do if you are a working person? Anyhow, any large collection of sundials could possibly be mounted on a rigid platform rotatable about an axis parallel to the earth's and all could be corrected for EOT in one movement! Whe! Enjoy the Light! Edley McKnight

RE: Equation of Time

2007-06-04 Thread Edley McKnight
Hi Simon, Ahhh! Thanks much for the information! So, nearly any sundial, if competently made can be used nearly anywhere on earth, if oriented properly. That is good to hear. Thanks again! Edley McKnight. not only altitude dials, but azimuth dials also. I have a chapter in Illustrating

RE: Equation of Time

2007-06-04 Thread Edley McKnight
for controlling the base tilt in a sundial of this general type, during the course of a year. So far, no luck. It may be easier to go ahead and make one empirically. -- Roger From Edley McKnight: A true equatorial mount is truly fine if you have one

RE: Equation of Time

2007-06-04 Thread Edley McKnight
Hi Folks, just a short note on hinging in latitude/EOT corrections. I tend to think of the hinge as one side of a parallelogram with the gnomon as the opposite side. The parallelogram extending down through the dial plate and base. When any set of parallel lines is rotated around one of them,

RE: Equation of Time

2007-06-03 Thread Edley McKnight
by their cords. Has anyone else observed this? I still like Hendrik Hollander's cone gnomon design the best currently. Enjoy the Light! Edley McKnight Duane, In addition to all the other comments, I'd like to mention this possibility: An ordinary garden sundial with triangular gnomon is usually

Re: Plaster Wall Sundials?

2007-05-28 Thread Edley McKnight
Hi John and All, Here is a pdf file that seems pretty close to what I was taught. http://www.buildingconservation.com/articles/pdf_decorat/decorat.pdf Enjoy the Light! Edley. Hello All: While researching wall sundials, I have come across a few sundials that seem to be made of sculpted 3

Re: R: Re: A very interesting dial

2007-05-21 Thread Edley McKnight
Dear Frank, Gianni, Robert, Bill and all, It seems that there is much interest in directly solving the multibody Kepler's law for at least those objects in our solar system. This is working from near basic principles rather than developing perturbations to curve fitting polynomial circular

RE: Waterproof papers

2007-05-21 Thread Edley McKnight
Thibaud, Larry, Mac, and all, I've tried an experiment using some quite white drafting film and laser printing. I converted the sundial file to a bitmap and then filled all the white area with a light grey. This way there is a fairly uniform layer of ink all over the sheet and the shadow of

Re: Russell Porter sundial

2007-05-19 Thread Edley McKnight
in it's ornamental purpose, not functionally as a sundial. Being addicted to sundials, my first thought when I see something is how would that work as a sundial? I apologize for getting carried away! Enjoy the Light! Edley McKnight Hello Friends, The Summer 2007 issue of Vermont Life

Re: Reversed Italian Hours

2007-05-18 Thread Edley McKnight
Dear Gianni, Thank you so much for your help over the years! This last NASS Compendium with the reflected dial with a shadow rod really helps. I've a wall with a full expanse but with a narrow walkway next to it, so that a normal sundial wouldn't work, likewise as it is often in full

RE: Waterproof papers

2007-05-18 Thread Edley McKnight
Hi Carl, Mac and all, Whatever material is used cannot have any coating over the printing, nor any ink sticking up, nor any printing impressions as they all disturb the shadow line a lot at such oblique edges. It must also be very smooth, of a uniform thickness, quite opaque and very bright,

RE: Waterproof papers

2007-05-17 Thread Edley McKnight
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

Re: Russell Porter sundial

2007-05-15 Thread Edley McKnight
Hello Mac, The Patent for Porter's reflecting telescope is available directly from the patent office's online site at a huge long url, which is too long to type in or put on a single line. You can just go to: http://patft.uspto.gov/netahtml/PTO/search-bool.html and search for telescope in

Re: Russell Porter sundial

2007-05-14 Thread Edley McKnight
Patent with the search Porter Telescope Best Wishes! Edley McKnight. Hello Friends, The Summer 2007 issue of Vermont Life magazine contains a nice article on Stellafane, a convention of amateur telescope makers which convenes each summer in Vermont, USA. Prominent among its founders

Re: R: Italian hours

2007-05-07 Thread Edley McKnight
Hi Gianni, Yes, I believe time to sunset is a great type of dial usage. As you say, watches don't do it. Some types of aircraft are required to be on the ground a certain time before sunset and certain airports have sundials for that purpose. I just enjoy it as it gives me a good idea of how

Re: strange longitude

2007-05-06 Thread Edley McKnight
, or to be fully visible from a particular location ( Like the bell ringer or the administration offices. ) sounds really cool!  Thanks again, Edley McKnight Dear Frank (Evans), I don't agree completely on your conclusions :-) In http://books.google.com it is possible to download the book John

Re: Laser Trigon

2007-02-08 Thread Edley McKnight
Carl, I've been looking at what may be a simple solution. A metric Framing Square, A Plumb Bob, One of those Cheap Laser Levelers that put out a Line rather than a spot on a surface. For instance the leveler shining from 500 mm on the short arm of the square to the other arm of the square

Re: Pocket Sundial plans?

2007-01-12 Thread Edley McKnight
(NASS) and have learned such a tremendous amount from the archive of quarterly compendiums, known as the Repository that I gladly recommend it. When your questions get much more specific, I'm sure you will get many responses from members of this list. Sincerely, Edley McKnight Hello all, I

RE: Portable Dial Adjusted for EOT and DST

2006-11-21 Thread Edley McKnight
! Edley McKnight. I've had some questions about the Soda Can Dial and how to read it. Here's a diagram taken at 3pm local time, 7 Nov 2006, which may help. The current time is read at the intersection of the vertical line corresponding to 7 Nov and the shadow cast by the top of the dial

Making Picture Link Pages

2006-11-03 Thread Edley McKnight
pages much like those of Google Image Sorry for this offsubject note, but it seemed called for. Edley McKnight --- https://lists.uni-koeln.de/mailman/listinfo/sundial

RE: Portable Dial Adjusted for EOT and DST

2006-10-26 Thread Edley McKnight
on one set, PM hours on a separate set which would allow one color printing as well as reduce the clutter in winter months, sounds neat too! Yes, I'd like to try your java version as I run a number of operating systems. Thanks much! Edley McKnight From: Roger Bailey [EMAIL

Re: Portable Dial Adjusted for EOT and DST

2006-10-25 Thread Edley McKnight
if necessary? Disregard my earlier note. Thanks! Edley McKnight Date sent: Wed, 25 Oct 2006 16:07:38 -0400 From: Lufkin, Brad \(Mission Systems\) [EMAIL PROTECTED] To: Sundial Mailing List sundial@uni-koeln.de Subject:Portable Dial Adjusted for EOT and DST Here's what I call a Soda

Re: Heliochronometer card dials?

2006-10-17 Thread Edley McKnight
be a great addition to festivals out in flatlander country, but I never go there. :-) Floating altitude dials seem to be fairly popular. Have fun! Edley McKnight Date sent: Tue, 17 Oct 2006 11:36:02 -0700 (PDT) From: Gerard Hughes [EMAIL PROTECTED] To: Sundial List sundial@rrz.uni

Re: Virtual sundial and Google Sketchup

2006-10-12 Thread Edley McKnight
for sharing! Edley McKnight From: Phil Walker [EMAIL PROTECTED] To: Sundial List sundial@uni-koeln.de Date sent: Wed, 11 Oct 2006 17:13:39 +0100 Subject:Virtual sundial and Google Sketchup Hi Sundiallists, Those who followed my experiments with Virtual Sundials and Google

Re: Sundial Calculations

2006-10-10 Thread Edley McKnight
as yet, I downloaded Scilab, which is also free, but I've not looked into it very far yet. I may download Octave as well. ( I love freeware that does great work! ) Things are looking up! Thanks for the info and offer of help! Edley McKnight From: Analemma Zonnewijzers [EMAIL PROTECTED

Re: Cone Nodus Design Improvements

2006-09-11 Thread Edley McKnight
Hi John, Yep, you got it, exactly! I don't know of a better way. Edley McKnight From: John Carmichael [EMAIL PROTECTED] To: Sundial List sundial@uni-koeln.de Date sent: Mon, 11 Sep 2006 07:48:36 -0700 Subject:Cone Nodus Design Improvements Hi Listers: I think that I

Test

2005-11-12 Thread Edley McKnight
Test Edley -

Sundial File Removal.

2005-08-14 Thread Edley McKnight
site, I will probably put them up on that site as well. Thanks, Edley McKnight -

Re: One piece card construction universal ring sundial prototype

2005-06-09 Thread Edley McKnight
Hi, Thanks much! I'd moved the latitude ring inside for a plastic needlework hoop sundial, but hadn't reached the neat card construction you've achieved. Perhaps if it were printed on a stiff but flexible plastic, like the plastic that hinges are made from, it could be used a 1000 times or

Re: Magnetic Gnomon Attachment

2005-02-03 Thread Edley McKnight
magnets, but Alnico can be plated. You might still want to have some silicone or polyurethane in the sandwich to protect the glass. Someone might like to go through the magnetic equations to optimise the structure against extreme wind conditions, etc. Hope this helps! Edley McKnight Ancient

Re: Any references on making a universal ring dial?

2004-05-23 Thread Edley McKnight
Hi Again Michael, Here is one reference to making a Universal Ring Dial. It is on Karen Robinson's web site and uses a wooden embroidery hoop to make it. http://www.angelfire.com/my/zelime/howto.html#hoop On the same page she has her version of doing a similar thing with just her fingers.

Re: Any references on making a universal ring dial?

2004-05-21 Thread Edley McKnight
, etc. It is kind of fun to design something that looks different, yet works well. Edley McKnight Ancient in Oregon From: michael Alexander [EMAIL PROTECTED] To: sundial@rrz.uni-koeln.de Subject:Any references on making a universal ring dial

Re: Reverse Engineer Oldest SGS

2004-04-06 Thread Edley McKnight
Hi John, If you had a hundred or so of these dials to reverse engineer, writing a program might be the best way. With 'one of' doing the hunt and fit method like your doing makes much more sense. Just keep changing latitude then longitude in small steps til the lines all fit fairly well.

Re: Off topic a little -- help requested

2004-03-02 Thread Edley McKnight
Hi Mac, When things like this happen to me it is usually a routing problem. Trace the route and if necessary work through an intermediate link or a mirror, anything to force a different route. This usually clears up the transmission for me. Enjoy the Light! Edley McKnight -

Re: sundial list operation: reply style changed!

2004-02-22 Thread Edley McKnight
Thank you, Thank you! Edley Date sent: Sun, 22 Feb 2004 17:44:52 +0100 From: Daniel Roth [EMAIL PROTECTED] To: sundial@rrz.uni-koeln.de Subject:sundial list operation: reply style changed! Send reply to: Daniel Roth

Re: Mock SGS

2004-02-22 Thread Edley McKnight
Hi Tony and all, Back in my youth, a church I attended was very proud of an ancient stained glass window that they had obtained from an old church in Europe. They were continually soliciting funds to replace various bits and pieces of the glass because they had faded! Some in only 3 year

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