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

, but .. for children of the right age and ability who are taught by an inspirational teacher, the delineation and decoration of an analemmatic dial in the school playground has great merit in the amalgamation of history, art, astronomy, trigonometry, geometry and practical measurement. Kevin

[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 --- Hi Thibaud, Python is the BEST language for

[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 --- Dan What language was the calendar in? That's a

[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 --- See

[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 --- Daniel Thank you for this explanation. What was

[no subject]

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

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

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,

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

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 …

Re: STONE SUNDIAL

Oops - misread for Mike Cowan Sent from my iPad > On 4 Nov 2016, at 08:08, Frank King <f...@cl.cam.ac.uk> wrote: > > Kevin Karney wrote: > > Dennis, > > Your nearest port of call would be the > geology department at the Sedgwick museum > in Cambrid

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

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

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

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

> Begin forwarded message: > > From: Kevin Karney <kar...@me.com> > 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 <helmut.ha...@teleos-web.de>

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

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 0 + 44 1594 530 595

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

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

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 fabio.sav...@nonvedolora.it wrote: Hi all I’ve just finished

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,

Re: 3D printing

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 tonylindi...@talktalk.net wrote: Hi all, I mentioned the possibility of making

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 marna...@libero.it 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

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

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

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: Sundial Subject: CORRECTIONS Extensions to A few

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

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 m...@astrovisuals.com.au wrote: I wonder if anyone can help? I want to produce a basic planetarium

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 May 2014

Re: Calculating the Equation of Time ..

can reach the person managing the list at sundial-ow...@uni-koeln.de When replying, please edit your Subject line so it is more specific than Re: Contents of sundial digest... Today's Topics: 1. Calculating the Equation of Time and other Solar Parameters (Kevin Karney

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

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

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 phoenix98...@msn.com wrote: There have been several discussions on the optimum shape

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

Re: Re quicklime

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 Of Kevin Karney Sent: Monday, May 06, 2013 2:39 PM

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 davey.anders...@gmail.com wrote: Dear All, Can anyone give me information on the attached photograph - such as is it a

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 2013, at 12:36

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

. Best wishes Kevin On 24 Feb 2013, at 19:05, brianalbinson brianalbin...@shaw.ca wrote: Kevin Unfortunately BBC iPlayer is only available in the UK. I wonder if you could post some still pdf's? Brian Albinson Vancouver, Canada On 2/24/2013 8:52 AM, Kevin Karney wrote

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

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: Hurray of Oz !

On 23 Jan 2013, at 16:54, Peter Tandy p.ta...@nhm.ac.uk 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 list Sundial list

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 illustratingshad...@yahoo.com wrote: very nice app, beat me

eBay : ANTIQUE HELIOCHRONOMETER BRONZE SUN DIAL SCIENTIFIC INSTRUMENT

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

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: We have to define gnomon - as something

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 Karney

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 Moore

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

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 ?

, 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 gods themselves

Re: Question re Astro Compass mark II

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) and when I bought it, it came

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

Re: a reverse sundial for the blind

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 help the blind navigate using

Re: Where it wil be equinox, at noon

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

Re: Flow of medieval glass

. But, 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, Llandogo

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 51° 44

Re: Welsh SGS maker

and 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' N 2

Re: Old sundial pictures

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, 2011 6:24 PM To: Kevin Karney Cc: Sundials List Subject

Re: time, off topic

- 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's famous voyage aboard

Re: EoT diagram

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, at 17:11, Chiu 邱,Chi lian wrote: Hi, I figured out a way

Re: varying speed?

) 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 Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK 51° 44' N 2° 41' W Zone 0 + 44 1594 530 595 On 26

Re: varying speed?

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 question brought to my mind an old doubt. As the points

Re: A 14th century sundial question from France.

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 this was a table of shadow lengths

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

Re: Google's Art Project and dialling

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 Google Art Project, I looked at Holbein's

Re: Solar Position Calculator

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...@yahoo.com wrote: I had asked a question earlier about how to design a contraption

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

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: 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

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 inline: Eariest:Latest.jpg On 20 Dec 2010, at 14:26, Kevin Karney wrote

Re: Special Seasonal Dates

with its large eccentricity component as the Sun races forward towards 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. Kevin

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

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, I used to rely

Special Seasonal Dates

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 just sit

Re: life before clocks

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 ours are today. Maybe to work at sunrise, go

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: What can be calculated with a sun dial?

the Sun's declination is changing so slowly at those times: (a problem the astronomers of antiquity struggled with). Equally, I think one would be hard pressed to find aphelion perihelion from a dial - except in a very indirect fashion. But let's get the list complete ! Best regards Kevin

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..

/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 07:35, R Wall wrote: Hi all, I want to design a sundial

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 Science and Technology

Re: The Jacobs Glass Sphere Dial

a 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 described