Re: Clouding the issue

Hi all, Wheatstone designed still another type of polarization dial than the one described by Jim Mahaffey. A specimen is in the collection of the British National Maritime Museum in Greenwich, see http://collections.rmg.co.uk/collections/objects/265579.html. When viewing the celestial pole, the

Re: Please help identify this architectural sundial and location.

Hi all, The sundial is located in Munich, in the terminal of the underground (U-bahn) at Messestadt-Ost (Trade fair). Not quite in the middle of Munich, though. It is nr. DGC-11098 in the database of the German Chronometrical Society. The time is read where the shadow of the upper edge intersects

Re: Construction of a Hemispherium

-George Uza <cerculdest...@gmail.com> wrote: > Dear Frans, > > As far as I can see your message did NOT go to the SML. > > Dan > > On Wed, Sep 16, 2015 at 12:59 PM, Maes, F.W. <f.w.m...@rug.nl> wrote: > >> Dear all, >> >> Thanks to the inva

Re: Sundials in museums

Hi Darek, While in London/Greenwich, you should not miss the Science Museum. They have a LOT of (mostly: pocket) sundials on display. Another must-see is the Deutsches Museum in München. There is a sundial garden on a 5th floor outside terrace, which is a showcase of all possible - modern -

Re: Sundials near the Equator

Hi David, I hoped to find a picture of this large Hong Kong equatorial dial with kids climbing into it. But people are too well-behaving apparently. On Thu, Mar 24, 2016 at 1:37 PM, Richard Langley wrote: > There is the huge Quitsato Sundial near Quito. If you Google "Quitsato >

Re: Are there some Sundial Designers, in INDIA ?

Hi Frank, Although it was not the start topic, I had a look at the new (no capital N) Delhi sundial. According to the newspaper article, "the sundial has been recently certified as one of the largest scientifically ACCURATE sundials in the world." (my capitalization). Even if the attachment would

Re: Hemicyclium correction

Hi Patrick, Thanks for pointing this out. Fortunately, I am still alive and sometimes kicking a bit ... I put the link to Fer de Vries' article temporarily on my own website as it was the quickest and easiest way to answer a query by someone on this list. By now, the (same) article is also

Dutch sundial journal renewed

Dear sundial friends, This is to let you know that the Sundial Society of Flanders (Belgium) has discontinued the publication of "Zonnetijdingen", as it appeared increasingly difficult to gather enough articles. The Belgian Society contacted the Netherlands' Sundial Society (De

Re: star-shaped sundial in Finland

Dear Fabio, There are several similar sundials in the Netherlands. One example can be seen at: http://www.fransmaes.nl/zonnewijzers/en/menkema-e.htm Typically, they are combined with two cubic sundials, rotated 45° with respect to another. The points of the star all form small polar dials, each

Re: dischrony

Dear Fabio, In The Netherlands we use "lengtecorrectie", abbreviated LC, which would translate to "longitude correction" in English. Some (international) standardization of terminology would be nice! Best regards, Frans Maes On Tue, Mar 12, 2019 at 2:06 PM Michael Ossipoff wrote: > I usually

Re: Wheatstone's polarizing sundial

(3) 13-15. > > I think reading these articles will fully explain Wheatstone's device, of > which several were evidently made. > > Regards, > > John > -- > > Dr J Davis > Flowton Dials http://www.flowton-dials.co.uk/ > BSS Editor http://sundials

Wheatstone's polarizing sundial

Recently the Tesseract Catalogue 109 was announced on this list. Item nr. 13 is a polarizing sundial by Charles Wheatstone. A virtually identical dial is in the collection of the Greenwich museums, see: https://collections.rmg.co.uk/collections/objects/265579.html. I have never understood how this

Re: Can anyone help me to contact Paul Ratto ?

Dear Isabella, The sundial is laid out according to the "Sunclock" design ( www.sunclocks.com), developed by Douglas Hunt from Great Britain. Paul Ratto is the "order-taker" for North America; see: www.sunclocks.com/pics/fs-002.htm, about halfway down the page. There is a link to his own website:

Re: Denizli sundial

Dan-George, thank you for the link! That is a beautiful ancient scaphe dial. The article says: "The sundial features ... Greek names of seasons". I can read a number of characters, which at all three date lines (equinox and solstices) seem to include MEPINH. What season names are these? Keep

Re: Denizli sundial

ut back > at an oblique angle. Both forms of dial are known - which is this? > > Regards, > > John > — > Dr J Davis > Flowton Dials http://www.flowton-dials.co.uk/ > BSS Editor http://sundialsoc.org.uk/publications/the-bss-bulletin/ > > > On 8 Apr 2020, at 18:3

Re: Fake "trifilar" Sun Dial?

Dear Siegfried, Bernard Rouxel of France designed this original sundial. It got him second prize in the Italian "Le ombre del Tempo” contest of 2008. It was discussed by the late Fer de Vries in one of his online articles. That website does not exist anymore, but you can find his articles in

Re: Fer's legacy - diptych

lephone: 44 0 131 468 2616 Email: sundi...@macmillanhunter.co.uk > > Website: https://www.macmillanhunter.co.uk/ > __ > > > > *From:* sundial *On Behalf Of *Maes, F.W. > *Sent:* 03 September 2020 13:49 > *To:* siegfried.

Re: Greco-Roman sundials

Dear Karlheinz, Thank you for this impressive gift to Mankind! Best regards, Frans Maes Virusvrij. www.avg.com

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

Hi all, One property of the analemmatic dial I like to stress: when it has the right size, you can act as gnomon yourself. This makes it an interactive instrument, which is appealing: you have to DO something to get the time. And with the good frame of mind it makes you feel part of the celestial

Hans de Rijk (Bruno Ernst) passed away

Dear all, We deeply regret to inform you that Hans de Rijk, founding member in 1978 and honorary member of the Netherlands' Sundial Society, passed away on November 23, at the age of 95. He served in the Board of the Society for many years and wrote some 150 articles in its Bulletin. Among these

Hans de Rijk (Bruno Ernst) passed away

Dear all, We deeply regret to inform you that Hans de Rijk, founding member in 1978 and honorary member of the Netherlands' Sundial Society, passed away on November 23, at the age of 95. He served in the Board of the Society for many years and wrote some 150 articles in its Bulletin. Among these

New Dutch sundial book is out

Dear sundial friends, As many of you may know, I have written and have been teaching an introductory sundial course for members of the Netherlands' and Flemish Sundial Societies. Now I have reworked the course material into a book aimed at a general, Dutch speaking readership. It is the first