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Dear Mike,
On the Sundial list something has been written
about the oldest polestyle dial.
I made a note of what was written and that note is
copied below.
Lateron I have
read about such a dial from 1372 by Ibn al Shatir.
That is added in the same note.
Best wishes, Fer.
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Krzysztof Kotynia wrote: > > > > Piero Ranfagni wrote: > > > Dear friends, > > > I need your help: I'm preparaing a lesson around the mesaurement of > > > time. I wolud like to know how old is the first equal hours sundial.Rohr > > > claimed that the "Man with the sundial" in the Cathedral of Strasbourg > > > is the earliest modern sundial and it dates from 1493. What is your > > > opinion? Can you indicate me some books on the subject? > > >
> > I don't know what dial with equal hours is the oldest , but on the site of De Zonnewijzerkring > > you may see a sundial in Utrecht, Netherlands, dated 1463. > > It is a small dial, still existing and dated. > > > > Fer J. de Vries > > [EMAIL PROTECTED] > >
> Dear Piero, > in other countries there are also sundials of equal hours > dated earlier than Rohr's example. > In the Museum of Jagiellonian University (Krakow, Poland) > is beautifully preserved > sundial designed by Marcin (Martin) Bylica, the professor of > astronomy in that University and carried out in 1485 by Hans Dorn > in Vienna in 1485. That sundial and other astronomical instruments > (a celestial globe, a very big astrolabe and so called torquetum) > Marcin Bylica bequeathed to the University. > So I think that sundials with equal hours a earlier that Rohr > thinks. > Best regards > Krzysztof Kotynia > lat 51.8N long.19.4E According to Ernst Zinner: "Astronomische Instrumente des 1.. bis 18. Jahrhunderts " (Astronomic instruments of the 11. until 18. Century ), publishing house C. H. Beck, 1979 the Astronomer and Mathematician Georg Peuerbach, (1423 - 1461) from Vienna created the first sharped table sundial of the world in the year 1451. It is in the museum Zeughaus Kaiser Maximilian I. in Innsbruck. You will find a picture and further explanations to this sundial in my homepage. http://www.tirol.com/sundial/ It is the sundial No. 2 in my collection. Karl Schwarzinger 47°14,3' N 11°26,7' E E-Mail : [EMAIL PROTECTED] An older one on a wall is Duderstadt, Germany, 1456 ( zie oom catalogus Duitsland, 37115 Duderstadt ) also old is Kaschau, Slowakia, 1477 ( Koice b Pronunciation: [kô´shitse] Ger. Kaschau, Hung. Kassa, city (1990 est. pop. 237,100), E Slovakia. ) A list you find in Zinner: Alte Sonnenuhren an europäischen Gebäuden, page 13 Happy dialling Klaus Eichholz [EMAIL PROTECTED] We have now: Strassbourg, France 1493 Building Cathedral Krakow, Poland 1485 Museum Kaschau, Slowakia, 1477 ?? Utrecht, Netherlands 1463 Building Church Duderstadt 1456 Building Cathedral Innsbruck, Austria 1451 Museum Wien, Austria 1451 Stephansdom Cathedral But where is the oldest? Who knows of older ones? Damascus 1372 Horizontal sundial by Ibn al Shatir Now replica but old parts seem to be present. Read: - Astronomy before the telescope page. 169 - Rohr, Die Sonnenuhr, page 174 - Osmanli Günes Saatleri, page. 30 en 174 -------------------------
Fer J. de Vries
Home
mailto:[EMAIL PROTECTED] http://www.iae.nl/users/ferdv/index-fer.htm Eindhoven, Netherlands lat. 51:30 N long. 5:30 E
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- Earliest Sundials Mike Cowham
- Re: Earliest Sundials Fer J. de Vries
- Re: Earliest Sundials [EMAIL PROTECTED]
- Re: Earliest Sundials Karl Schwarzinger
- Re: Earliest Sundials Gianni Ferrari
- Earliest Sundials Mike Cowham
