Hello Willy, To my opinion the digital sundial by Scharstein is a new concept in modern gnomonics. I also would like to add the holographic sundial, once made in Austria. Who has details? I can't find it back.
Perhaps also the dial that uses fiber glass wires to transport the sunspot to any convienient spot could be mentioned, however the baic concept is an equatorial dial.. These kind of dials only could be made thanks to new technology in our times. Some other additions to this article are: The equant dial by Fred Sawyer The dial based on Ptolemaic coordinates by Fred Sawyer The latitude independant dials by Freeman and De Rijk. There will be more and any example will be welcome to comlete the list. Best wishes, Fer. Fer J. de Vries mailto:[EMAIL PROTECTED] http://www.iae.nl/users/ferdv/ Eindhoven, Netherlands lat. 51:30 N long. 5:30 E ----- Original Message ----- From: "Willy Leenders" <[EMAIL PROTECTED]> To: "Sundial List" <[email protected]> Sent: Saturday, October 19, 2002 9:15 PM Subject: Digital sundial > In the bulletin of the Britisch Sundial Society, volume 14 (iii) > september 2002, Mrs. Margaret Stanier gives a survey of the > contributions to the art and science of dialing in the twentieth > century. > Two new designs of sundials with the world's first creation in the > Sundial Park at Genk in Flanders (Belgium) are absent in this survey: > > 1. > The conical sundial, the world's first horizontal dial with a conical > gnomon. The two shadows of the cone indicate Babylonian and Italian > hours, respectively. This sundial is an invention of Javier Moreno > Bores, Madrid, Spain. > > 2. > The digital sundial, an intriguing new design that combines the ancient > science of sundials and advances of modern technology with elegant > simplicity. Like a digital clock, the digital sundial displays the > current time using digits without using any form of energy. > > Asked for an explanation Mrs. Stanier answers she agrees that the Bores > design is indeed an interesting new design. > > She dosn't however consider that the digital sundial should be recorded > as an entirely new design. It is a read-out of the conventional vertical > sundial and just a convenient addition to help in the ease and accuracy > of reading a dial face of an ordinary sundial, she sais. > > Can I hear the opinion in this connection of ohter sundialists? > > Willy Leenders > Hasselt, Flanders in Belgium. > > You can find more information about this sundials on the website of > Frans Maes: http://www.biol.rug.nl/maes/genk/welcome-e.htm > > The digital sundial is described by the inventor Daniel Scharstein on > his website at page: http://www.digitalsundial.com/background.html and > in detail at the page of the patent: > http://www.digitalsundial.com/patent.html > > The conical sundial is decribed in "Zonnetijdingen" the periodical of > The Flemish Sundial Society, number 1998 - 09. > It is mentioned in the bulletin of the Britisch Sundial Society No. 97.3 > on page 53 (foto 2) > > > > - -
