Re: Is this an educational sundial, or a 'NON-dial'?

Karney, Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales Phone 01594 530 595 or 07595 024 960 > On 5 Apr 2021, at 09:09, Siegfried Netzband > wrote: > >  > Hi alll, > agree in general to everything that has been said about the analemmtic > sundial. To me the inte

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Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment.--- Begin Message --- Hi Thibaud, Python is the BEST language for technica

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Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment.--- Begin Message --- Dan What language was the calendar in? That's a first

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Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment.--- Begin Message --- See https://www.theguardian.com/news/2019/jan/11/watc

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Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment.--- Begin Message --- Daniel Thank you for this explanation. What was stran

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if I have included an image of yours and have not attributed it to you, please let me know. Please do have a look and send comments/additions/corrections/improvements Best wishes Kevin Karney - from Wales--- End Message --- --- https://lists.uni

[no subject]

Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment.--- Begin Message --- All Scottish (& English?) lighthouses had a sundial -

Re: Missing an opportunity

John Not very beautiful, as you say, by pretty impressive technology - I'll try to get to see it. Berkeley Castle is not too far from my home. I'll post some photos if I get there. Kevin > On 28 Jun 2018, at 16:03, John Goodman wrote: > > The sundial shown at this link looks completely conve

Re: Pocket sundial

Yes, I have one. It’s nice as a demonstrator - it fulfils all the design requirements of such a dial. But it is not precision made… Kevin > On 21 Sep 2017, at 08:57, Dan-George Uza wrote: > > Hello, has anyone got one of those? > > https://www.pocket-sundial.com/

Re: Brass or Bronze for Sundials.

Hi Roderick Contrary to John's advice, you do NOT need to cast bronze. You can buy bronze sheet in many thicknesses. You will need to go to a specialist metal supplier and it is quite expensive. The supplier that I have used for four sundials lists 12 different varieties of bronze. I cannot reme

Re: Dial face colouration

Dear Steve I do not know how you are planning to cut and fabricate your plastic sheeting. But if you have not looked, there are many many bi-colour double layered UV resistant acrylics used by the sign-writing industry. See, for example, https://www.engraving-supplies.co.uk/laser-materials/tro

Re: Looking for minutes and seconds correction for whole year for Equation of Time plaque

Hi Ken I you want to observe how the Equation of Time varies over the years, go to my website http://www.precisedirections.co.uk/Sundials/index.html The second item may be of interest to you. It gives a table of EoTs (including the longitude correction for your time zone). And you can choose eit

Re: Permanent DST

Nothing much changes! UK Daylight Saving Bill - 1909 William Churchill, President of the Board of Trade … this Bill does not propose a change from Natural Time to Artificial Time, but only to substitute a convenient standard of Artificial Time for an inconvenient standard of Artificial Time … Kev

Re: STONE SUNDIAL

Oops - misread for Mike Cowan Sent from my iPad > On 4 Nov 2016, at 08:08, Frank King wrote: > > Kevin Karney wrote: > > Dennis, > > Your nearest port of call would be the > geology department at the Sedgwick museum > in Cambridge... > > Many readers will fi

Re: STONE SUNDIAL

Dennis, Your nearest port of call would be the geology department at the Sedgwick museum in Cambridge. Check with Frank if he knows any sundial friendly staff there Kevoin Sent from my iPad > On 2 Nov 2016, at 09:51, Mike Isaacs wrote: > > Re Stonehenge. > > In current Private eye No 143

Re: Longcase Clock with Equation of TIme

As explained by Fred Sawyer in a recent lecture to the British Sundial Society, if often worked the other way around... people had an equation table and all kinds of rules so that they could adjust their clock so that it matched dial time for as long as possible. Dial time was (and still is fo

Spider Dials

Dear Gnomonists Recently, there has been a small correspondence about Spider Dials. This message mainly concerns those who like to do all their gnomonic calculations programatically. I attach a short text file that contains the routines needed to prepare spider curves for a horizontal dial wit

Fwd: Looking for a sundial 'twin': wide gnomon spider - second try with smaller photo NUMBER 2

> Begin forwarded message: > > From: Kevin Karney > Subject: Re: Looking for a sundial 'twin': wide gnomon spider - second try > with smaller photo NUMBER 2 > Date: 26 May 2016 at 17:50:46 BST > To: Helmut Haase > > >> On 23 May 2016, at 18:54,

Re: Looking for a sundial 'twin': wide gnomon spider - second try with smaller photo

other dial of this type I know in in the Parkes Observatory in New South Wales, Australia. You can find one image of it with a Goggle search "Parkes Observatory sundial" Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone

Re: Paper cubical sundial

Dan The best way to test your sundial in in Sketchup itself. Turn on shadows and set the time and date. I have carefully checked the Sketchup routines and they correctly reflect the sun's actual altitude and azimuth. So you can track all the effects of the Equation of Time, Longitude Offset, etc

Re: 3D digital sundial

Bill I've used OpenScad. It does what it says on the box. But with a steep learning curve - unless you are familiar with programmical modelling - it's all a matter of creating a primitive shape, scaling it, rotating it, moving it and then adding or subtracting from what you have created before.

Re: largest sundial

Come now everyone! Tall buildings, dams No! The largest dial in the world is undoubtedly in Tasmania. Initial construction was fine but somehow the hour lines were never inscribed. Google Dial Range Tasmania and find the images of Mount Dial & Mount Gnomon. Best wishes Kevin > On 27 Oct

Re: Temporal Hours

I think this is a really important thread ! My interest in this whole subject is the various "client populations" (whose who needed to tell the time) and what technologies they employed and what accuracies they achieved I think one can easily see five (sometimes overlapping) populations… The as

Re: A translucent sundial

Chi-Liang It's magnificent! Well done... Kevin Kevin Karney Freedom Cottage, Llandogo, Monmouth, NP25 4TP Phone 01594 539 595. Mobile 07595 024 960 --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: hemi truncated icosahedron

Fabio Quite brilliant ! That is a tour-de-force in programming. Best Kevin Kevin Karney, MA JP Freedom Cottage, Llandogo, Monmouth NP25 4TP. Phone 01594 530 595 Mobile 07595 024 960 > On 19 Jun 2015, at 22:44, Fabio nonvedolora > wrote: > > Hi all > > I’ve just finished a

A Sundial in a family crest and coat of arms

I met nice man with surname Hyndman who was proud that he had a sundial in his family crest and motto. See attached. The motto is part of a poem dated 1662 by Samuel Butler called Hudibras Their duty never was defeated, Nor from their oaths and faith retreated; For loyalty is still the same, Whe

Re: 3D printing

Tony All those bright young Design students are 3D printing things in plastic and then using lost wax techniques to cast the final product in something really solid. K Kevin Karney, MA JP Freedom Cottage, Llandogo, Monmouth, NP25 4TP 01594 530 595 > On 5 Dec 2014, at 13:30, Tony Moss wr

Re: 3D printing

d their output matches all the industry standards. Have fun Kevin Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 > On 5 Dec 2014, at 13:30, Tony Moss wrote: > > Hi all, > I mentioned

Re: Fabio's Sundial Smile

Thanks, Mario! I now know what my grandchildren's first sundial will look like Kevin Kevin Karney Freedom Cottage, Llandogo, Monmouth, NP25 4TP Phone 01594 539 595. Mobile 07595 024 960 > On 14 Nov 2014, at 23:00, Mario Arnaldi wrote: > > If you like smiles, I give you my &

Re: Acronychal rising

Hi Marcello To find when the sun is in opposition to a star, you must work with the Righty Ascension. All our time measurements relate to the rotation of the earth about the equator. The equation for opposition is RA_sun = RA_star -12 hrs but RA_sun = GMST - UTC - EoT +12 (all in hours) thus GMS

Re: CORRECTIONS & Extensions to "A few new Tables for the Gnomonist..."

ore as a resource for those interested in sundials > then maybe Gianni’s view should prevail? > I suspect your idea of a radio button for these would be the best option! > Regards > > Patrick > > From: Kevin Karney > Sent: Thursday, June 12, 2014 6:12 PM > To: Sun

CORRECTIONS & Extensions to "A few new Tables for the Gnomonist..."

Dear Friends Thanks for the positive comments! And thanks to Gianni Ferrari, Patrick Powers, Edward French and Jack Aubert for pointing out the MAJOR error in the Annual Equation of Time Table. It was giving EoT values across the table instead of down, which is an error I had corrected before -

A few new Tables for the Gnomonist...

Dear Friends I have been amusing myself with the astronomy of the Sun and have done a very complete coding of Meeus' routines for finding EoT, altitudes, azimuths, etc, etc. These deal with precession, nutation, aberration, parallax and the differences between TT, UT1 and UTC time. This has yi

Re: Planetarium app

David Attached is a list of the 1000 brightest stars. If you want more you can get lists by constellation from \ http://www.alcyone.de/brightest_stars.html On 22 May 2014, at 08:56, Astrovisuals wrote: > I wonder if anyone can help? I want to produce a basic planetarium app for > iPad that sh

Re: The GPS zero meridian club

Shame on you all - abandon this ill conceived club!! The Sun was not involved in the conception of WGS84. You should all be expelled from the Sundial mailing list as heretics Kevin Karney Freedom Cottage, Llandogo, Monmouth, NP25 4TP Phone 01594 539 595. Mobile 07595 024 960 > On 1

Re: Calculating the Equation of Time ..

;Re: Contents of sundial digest..." >> >> >> Today's Topics: >> >>1. Calculating the Equation of Time and other Solar Parameters >> (Kevin Karney) >>2. CORRECTION Calculating the Equation of Time and other Solar >> Paramet

CORRECTION Calculating the Equation of Time and other Solar Parameters

My website is … http://www.precisedirections.co.uk/Sundials with a capital S for Sundial Sorry K--- https://lists.uni-koeln.de/mailman/listinfo/sundial

Calculating the Equation of Time and other Solar Parameters

Dear Friends I have spend many happy hours during this wet, wet winter investigating and learning how to calculate all the solar parameters that a gnomonist might possibly need - Equation of Time, Declination, RA, Altitude, Azimuth, Time of Sunset/Rise, etc, etc. I have been surprised to find

Re: a 3d printer printed sundial

Simon Fantastic - I wondered who would be first with this technology! Interestingly, there is a €650 hobby build-your-own 3D printer coming on the market from Belgium : working area 20cm*20cm*20cm. Complete with free driver software (but I think you need to be able to make the 3D model first in

Re: Sundial finish

Dear Art "Sundials Australia" by Margaret Folkard & John Ward (available via www.sundialsaustralia.com.au) has an interesting chapter on this subject Best wishes Kevin Karney On 6 Jun 2013, at 19:49, Art Krenzel wrote: > There have been several discussions on the optimum sha

Re: Man Wants heliochronometer

That is an Aten Sundial made by J. D. Gard http://atensundials.com Sadly Mr Gard has died and I do not know if the business has been continued by his wife. The website invites e-mail enquiries and no longer gives prices. These dials are latitude adjustable, correctable for longitude and summer t

Re: Re quicklime

ate from that > period. They all seemed to have the same sandy consistency. I jokingly told > a homeowners that I was the “mortar inspector”. He replied “Finally! We’ve > been waiting forever!” > > Jack > > From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf O

Re: Re quicklime

A further point about lime mortar. It sets quite hard within a few weeks, but continues to get harder & harder at an exponentially slower rate until the carbon dioxide (as carbonic acid) in the atmosphere eventually converts it back to its original calcium carbonate. So Roman mortar is very very

Re: A prize for the worst 'non-dial', of the year?

Looks like an OK sundial to me. If the latitude is right, it should work… Every member of NASS & BSS should own one…. Kevin On 3 Apr 2013, at 21:25, David Andersson wrote: > > Dear All, > > Can anyone give me information on the attached photograph - such as is it > a genuine (but useless!) sun

Re: sundials collection in Nuremberg

Hi Chris There is a nice book "the Ivory Sundials of Nuremberg, 1500 - 1700" by Penelope Gouk, ISBN 0 906271 03 7, published by the Whipple Museum of the history of Science. You can I think buy it in theNuremberg Museum, if not from Abebooks.com Best wishes Kevin Karney On 2 Apr 2

Re: Cut out dials

Thanks Mac The software to generate these dials is available to anyone with an Apple Mac. The package is called Nodebox and it's free. I can supply the source for this dial for anyone who has a Mac. Nodebox is a really powerful 2-D graphics package and is becoming available (I think) for Windows

Re: Arabia still uses the Sundial for a practical use.

our computer cannot read a .m4v video file, please let me know. Best wishes Kevin On 24 Feb 2013, at 19:05, brianalbinson wrote: > Kevin > > Unfortunately BBC iPlayer is only available in the UK. I wonder if you > could post some still pdf's? > > Brian Albinson >

Arabia still uses the Sundial for a practical use.

Dear Diallists BBC 2 have just started a nature series called "Wild Arabia". In showing how scarce water resources are shared out, they show an ancient Omani gentleman using a sundial with an even more ancient wooden gnomon ! The series is worth watching if you can get BBC2, but you can view t

Re: conservation

Frank Just to confirm what Harriet has told you. The Church authorities, the National Trust and (for example) the Wye Valley AONB can only use certificated stonemasons. You could probably easily find the most suitable locally certificated person from the Clerk-of-Works for Durham or Newcastle ca

Re: Hurray of Oz !

ch. K On 23 Jan 2013, at 16:54, Peter Tandy wrote: > A great stationary engine Kevin,….but how does it tell the time?... > > Peter Tandy > > From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Kevin Karney > Sent: 23 January 2013 12:51 > To: Sundial l

Re: Sundials worthy of a tour in England - Pics 1 for Bath

Dear SaraNice to hear from you!First idea...Bath - the Grand Pump Room built 1705 - an elegant tea room - with a fabulous Tompion Long Case Clock, complete with EoT cam, and on a ledge outside the nearest window the Tompion sundial with which to set the clock. The Curator has a packaged talk about

Re: new app "Sol Et Umbra" for Android

Very jealous!Can someone translate the code to iPhone. Please! Kevin Kevin Karney Freedom Cottage, Llandogo, Monmouth, NP25 4TP Phone 01594 539 595. Mobile 07595 024 960 On 9 Oct 2012, at 22:59, "Simon [illustratingshadows" wrote: > very nice app, beat me to it! :

eBay : ANTIQUE HELIOCHRONOMETER BRONZE SUN DIAL SCIENTIFIC INSTRUMENT

I came across the attached on eBay http://www.ebay.co.uk/itm/ws/eBayISAPI.dll?ViewItem&item=320976724417&ssPageName=ADME:B:SS:GB:1123 anyone interested? Kevin Karney --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Looking for Erich Pollähne

Can anyone help? I am trying to buy one of Erich Pollähne's perspex sundials. His company - Meku - has a website http://www.meku-pollaehne.de/Produkte/Sonnenuhren/sonnenuhren.htm and price list, but no response to my e-mail. Does he still trade? Thanks Kevin K

Re: Sundial on Mars

Gnomon (γνώμων) is an ancient Greek word meaning "indicator", "one who discerns," or "that which reveals." It has come to be used for a variety of purposes in mathematics and other fields. Best regards Kevin Karney On 10 Aug 2012, at 16:21, rPauli wrote: &g

Re: Moore Sundial stolen

Luke Great News ! thanks Kevin On 22 Jul 2012, at 17:41, Luke Coletti wrote: > > A bronze sculpture worth £500,000 stolen from the former home of British > artist and sculptor Henry Moore has been recovered by detectives after a > televised appeal for information. > > The Sundial, created by M

Re: Calculating azimuth of sunrise and sunset from present back 25, 000 years

e JPL Horizons to find it. Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth, NP25 4TP Phone 01594 539 595. Mobile 07595 024 960 --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Why are schools, across the world, 'banning' analemmatic sundials ?

aphy, geometry and maths as sundials in the playground. And they get the children out of the unhealthy atmosphere of the class room into the great outside. Good luck - you have my full support Kevin Karney On 15 May 2012, at 19:16, sun.di...@libero.it wrote: > "Against stupidity the god

Re: Question re Astro Compass mark II

gards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 27 Feb 2012, at 02:36, John Pickard wrote: > Good morning, > > I have an Astro Compass mark II in excellent condition, made by Sperti > (Cincinnati) an

Re: medieval astronomy (was: Georg of Peuerbach)

Sara wrote By the third century BC there were so many of them that people complain about having to run their lives by these blasted timepieces. I guess this is her source Titus Maccius Plautus 254 - 184 BC - a influential Roman playwright of comedies - is quoted, in 'Attic Nights' by Aulus

Re: a reverse sundial for the blind

bt whether this is a practical method for a blind person Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 11 Oct 2011, at 13:43, byzmusic wrote: > I have written the following small article to hel

Re: Where it wil be equinox, at noon

or the positions of solar system objects Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: longest day

It's worth remembering that all these things were well understood long ago. Ptolemy wrote a whole chapter about the changing length of the solar day in the Almagest nearly 2000 years ago…. On the inequality in the solar days ……it seems appropriate to add a brief discussion of the subject of the

Re: Flow of medieval glass

ut, in the picture framing business, one does not wish to have the extra stage of cleaning kerosene smears off the glass, as well as the usual fluff/insect stains/finger prints. (Interesting how this gnomonic list gets off topic - but long may it continue.) Best regards Kevin Karney Freedom Cottage

Re: Welsh SGS maker

Wales. Politically Monmouthshire is in Wales - but culturally it is in neither - generally considering itself independent having been a battle ground between the English & Welsh since pre-Roman days…. Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44&

Re: maximum attachment size on the sundial mailing list

Daniel That's fabulous. I am sure many more images will be presented - which will just improve the already excellent service that you provide to us all. I am sure many others will join me in thanking you. Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 5

Re: Old sundial pictures

ges referred to. > Are they posted on a website? > > Sara > > 42°21'N 71° 14'W > > > -Original Message- > From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On > Behalf Of Donald Christensen > Sent: Wednesday, June 29,

Re: time, off topic

ronometers - the average of the two which showed the closest time was used to compute longitude Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 23 Jun 2011, at 09:51, Frank Evans wrote: > During Darwin

Re: EoT diagram

evice in the Strassburg cathedral clock. I cannot find a web picture of this, but I have posted a not-very-clear photo of it at the above web-site Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 21 Jun 2011,

Re: varying speed?

s -- > Oh, Wilderness were Paradise enow! and (especially for us gnomonists) > For in and out, above, about, below, > ’Tis nothing but a magic shadow-show, > Play’d in a box whose candle is the Sun, > Round which we phantom Figures come and go Best regards Kevin Karney Freedom Cotta

Re: varying speed?

y uncle who was a dedicated but amateur astronomer. I have never it confirmed by a professional astronomer. Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 25 Mar 2011, at 16:14, Marcelo wrote: > Your

Re: A 14th century sundial question from France.

ipt image form anywhere on the web (plus a translation...!)? Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 9 Mar 2011, at 15:03, Schechner, Sara wrote: > I had exactly the same thought as John—that

Re: Google's Art Project and dialling

Babylonian Hours - counted from Sunrise ? The shadows in picture are not good - so don't assume the times will be right The dial is not a polyhedral dial that one would set up in the garden which would read the same time on each face according to the time of day. Its a portable dial to be carrie

Re: Google's Art Project and dialling

thing with the spike and square hole on his table. Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 4 Feb 2011, at 07:59, patrick_pow...@compuserve.com wrote: > > After only recently learning of the

Re: Solar Position Calculator

home. You appear to live at sea, in the San Francisco Bay!! What is the background of your calculations ? Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 2 Feb 2011, at 20:22, triplederby100-pro.

The Equation of Time - a simple movie to show its effect

nding buildings, etc. - there is nothing better... Enjoy Best regards Kevin Karney Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales UK 01594 530 595 --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: 360 degree

Hi FabioA really interesting dial !At the top of the building there is a picture of someone (Gallileo?) doing something with sunlight, an armillary sphere & a survey instrument see attachment. Better pictures at http://www.flickr.com/photos/fotogiannella/2177252409/in/photostream/&http://www.fl

Re: Puzzle Photograph of the Eclipse - A complete guess

placed in the can. The image (after six months) is produced just by scanning the undeveloped paper! You can see all his various amazing solar pictures in proper size and how he makes them at ... http://www.pinholephotography.org/gallery/slow/index.html Enjoy Best regards Kevin Kevin Karney

Re: Determing Pitcairn Island longitude in 233 B.C.

Interesting. The Chinese found the longitude of Mombasa in the 16 century (I think it was) without chronometers using eclipses, using the method outlined in the article. With good means to predict the occurrence of eclipses, they planned such observations. Best regards and happy new year Kevi

Re: Special Seasonal Dates

Here's a graph of earliest sunset/latest sunrises for various latitudes... It is calculated by using the 12 +/- [acos{tan(latitude) . tan(declination)}]/15 formula corrected to mean tim with the EoT Best regards Kevin <> On 20 Dec 2010, at 14:26, Kevin Karney wrote: > Dick >

Re: Wonderful NREL Sun Position Calculator, in time for Solstice fun

;s MICA program available on disk for a few dollars. MICA uses DE405 as its ultimate engine. Anyone who wants to use Meeus's routines, I have the whole lot as a callable Excel macro function Best regards Kevin Karney On 20 Dec 2010, at 16:38, Bill Gottesman wrote: > Hello Sundial-listers,

Re: Special Seasonal Dates

wards perihelion. >> >> p.s. the graphs are for 54 degrees North latitude; the y-axis scale will >> change at other latitudes. >> p.p.s. dates are UT - so they may vary with your local longitude. >> >> Have a wonderful Christmas season. >> >> Kevi

Special Seasonal Dates

erful Christmas season. Kevin Karney Sunrise-Sunset.pdf Description: Adobe PDF document --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Merry Christmas in all the languages

Steve You express my sentiments entirely Happy and joyous Christmas to all Kevin Kevin Karney Freedom Cottage, Llandogo, Monmouth, NP25 4TP, Wales, U.K Phone 01594 539 595. Mobile 07595 024 960 On 12 Dec 2010, at 05:08, Steve wrote: > Confrere: > > Like most, sometimes I jus

Re: Sundial Information

I'm for Harriet's interpretation Athene, her owl and the meaning of gnomon K On 19 Nov 2010, at 16:03, Brad Lufkin wrote: > I suspect there's no relationship. The publishers of the humor magazine were > probably making an oblique reference to the owl of Athena, which is a symbol > of wisdom

Re: life before clocks

ious timekeeping life of the sundial. It's a fascinating subject See also some in text comments below... best regards Kevin Karney On 19 Nov 2010, at 21:41, Brent wrote: > I wonder what life was like before mechanical clocks. > > I suppose your day was less structured than

Re: What can be calculated with a sun dial?

te ! Best regards Kevin Karney On 16 Nov 2010, at 21:38, Jos Kint wrote: > Dear sun dialists, > > What can be calculated with a good sun dial? Here is a list of 19 topics. Can > you add some more items? > 1. The hour of the day > 2. The day of the year. > 3. The sol

Not really to do with Sundials, but some good shadows...

Mapping during 600 years anniversary of the astrological tower clock situated at Old Town Square in center of Prague. This was projection onto the front of the church http://vimeo.com/15749093 Best regards Kevin Karney--- https://lists.uni

Re: Creating .EPS file format for sundials..

ox with various options - choose TIFF/Level 2/Colour/None. That's all If your sand blaster cannot read the file produced, try different options in the last dialog box. Hope that works for you. If not, let me know and I'll think again Best regards Kevin Karney On 13 Jul 2010, at 0

Re: Longest day calculations

[acos(-tan{latitude} x tan{declination})] / 7.5 Declination = 23.5 at midsummer , 0 at equinox -23.5 at midwinter Kevin Karney Freedom Cottage, Llandogo, Monmouth, NP25 4TP Phone 01594 539 595. Mobile 07595 024 960 On 1 Jul 2010, at 18:12, John Goodman wrote: > Hello all, > >

Re: Burnsville Sundial article

This is a great dial ! I love the EoT representation. Good pictures of the dial at http://quilttrailswnc.org/sundial.html Best regards Kevin Karney On 17 Jun 2010, at 03:21, Bob Hampton wrote: > Greetings, > The Charlotte Observer recently ran a short article in their Scien

Re: The Jacobs Glass Sphere Dial

hollow lucite sphere filled with a copper sulphate solution which gives a cool non-burning blue image. This is very difficult to fabricate. Best regards Kevin Karney On 8 Jun 2010, at 17:01, Fabio Savian wrote: > hi all, > > today I find a new sundial on Sundial Atlas like the one you