Talk:Astronomical clock

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Something missing[edit]

What was wrong with the section "time of day" that made it get deleted? Cormullion 16:00, 13 May 2006 (UTC)[reply]

That was probably just pointless vandalism. u p p l a n d 16:55, 13 May 2006 (UTC)[reply]
OK! I'm quite new to Wikipedia, so I thought someone had found something technically wrong with it... Cormullion 17:36, 13 May 2006 (UTC)[reply]

Schwilgue[edit]

I don't see why the Schwilgue page I created should be merged into the astronomical clock page. Of course, an astronomical clock page can give names of people who built astronomical clocks, but the page I created should and can be extended, as there is much more to say than what I have written as a start. Schwilgue 15:20, 2 July 2006 (UTC)[reply]

I haven't moved anything, don't know who did. :-) I can see that organising all this material isn't always easy. This section could be a main entry point for astronomical clocks - a list of links, some generic description, and so on. Then each clock could have its own page and history, or a section in another page. And each builder could have their own page too. The only requirement is to avoid duplicating the same information in many different pages, and deciding which information should go in which page. But if everything is carefully wikilinked, that shouldn't be so much of a problem? I have more material planned for this main 'astronomical clock' page - mainly explanatory about typical display techniques, because I've spent some time trying to understand them - rather than information about particular clocks or builders, for which I have little knowledge. Cormullion 08:57, 3 July 2006 (UTC)[reply]

Sørnes clock[edit]

Can you give a link to where the English edition of Sørnes' book can be obtained? I have the Norwegian version, but my Norwegian is a bit weak.Schwilgue 19:58, 31 July 2006 (UTC)[reply]

Presumably the Sørnes clock isn't as unique as this entry claims. Judging from the description of the Festo Astrolabium ([1]), there seems to be more than one crazy genius who's prepared to spend decades building amazing astronomical clocks that manage to achieve unheard of levels of precision by adding complex gearing. I don't want to minimize the amazing achievement of Sørnes but I don't want others with similar achievements to be excluded with claims that he's unique. Please could the entry be changed to be more encyclopedic and neutral?
I must change that Festo link - their web site is too hard to look through! Cormullion 12:37, 29 September 2006 (UTC)[reply]

The date 2003 for the Norwegian edition of the book is probably bogus. I have the book somewhere, and it is more like 2004 or 2005. This should be checked. The English edition bears the date 2008.Schwilgue (talk) 23:30, 25 October 2009 (UTC)[reply]

Taqi al-Din's clock[edit]

A section on the accurate clock of Taqi al-Din was recently added to this article. Although this is interesting, I do not think it fits the present article. The article on astronomical clocks should only describe astronomical clocks, that is, clocks with astronomical indications. Taqi al-Din was perhaps used for astronomical purposes, but it is not an astronomical clock.

I suggest that the description of Taqi al-Din's clock be moved to an article on "accurate clocks" (which would also mention some clocks by Jost Buergi, for instance).Schwilgue (talk) 18:21, 21 June 2008 (UTC)[reply]

Accroding to the source, it does seem to be an astronomical clock since it did show the zodiac and moon phases. However, there are many errors and inaccuracies in the Taqi al-din sections, that are not supported by the source. The source does not say that it was the first astronomical clock with springs, instead it says that Taqi al-Din got his designs from studying other clocks. The section seems to be pro-islamic POV. Koyos (talk) 18:33, 14 April 2009 (UTC)[reply]
There is confusion here between different clocks made by Taqi al-Din. The clock he describes [2] in his treatise The Brightest Stars for the Construction of Mechanical Clocks does seem to be an astronomical clock in the sense given here. However, like Tycho Brahe (who used Jost Bürgi's clocks) Taqi al-Din also used clocks to time astronomical observations, but there is no reason for these to be astronomical clocks in the sense of this article, and I see no evidence that they had anything in common with the clock described in his treatise. At any rate, I have rewritten the section on al-Din's clocks, since it was off-topic and contained inaccurate claims. Spacepotato (talk) 22:00, 1 October 2009 (UTC)[reply]

Italian hours[edit]

In this system, 0 o'clock occurs at sunset, and counting continues through the night and into the next afternoon, reaching 24 an hour before sunset.

I don't think it works this way; it would have meant that a day has 25 hours. (I have changed it to "1 o'clock".) - Mike Rosoft (talk) 12:37, 25 February 2011 (UTC)[reply]

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