Re: Interesting sundial in Japan

2009-04-30 Thread Gianni Ferrari
As others have already written it is a vertical sundial, facing South,  with
polar style, with its center in the point A of the attached figure.

Since the style   continues beyond the disk, the part BC of it can work as a
polar style of a sundial facing   North, with center in B, drawn on the
hidden face of the disk.

Even if the style BC is very short, being the northern face   illuminated
only in the extreme hours of the day, the shadows would be long enough to
reach the edge of the disk.

The northern side of the disk has been being illuminated from 5:30 to
8:00  (around)
and from   16:00 to 18:30

The lines of the hours on the northern face would be those drawn on the
southern face for the same hours (see the Roger Bailey’s drawing)



Does someone know if  the hours are written also on the northern face of
this sundial?


Best Regards
Gianni Ferrari
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Re: Shropshire Sundials And Google Earth

2009-04-30 Thread Richard Mallett
Roger Bailey wrote:

 Hello Richard,

 I am pleased to see that you are waymarking sundials in Britain. This 
 will be an excellent resource. The member specific password protection 
 is useful but it will not stop the clever thief/collector from joining 
 the club to learn where the trophies are kept.
No, you misunderstand me.  The password protection is applied to the 
whole of the new BSS website while it is under development, so that the 
search engines will direct people to the current BSS website.

The sundials that I am putting on Google Maps are those that are 
publicly accessible anyway.  When the new BSS website is  ready, these 
will be available for all to see.

 I have been testing the open system www.waymarking.com and adding 
 information to this open data base. It is quite useful and easy to 
 use. Perhaps too easy as it suffers from the usual problem of user 
 generated input. GIGO! There approval bar is set quite low. Anything 
 submitted that looks like a sundial gets added. Many are garden 
 variety junk but we cannot deny that these objects exist.
Yes, I took a brief look at that.

 I use started using Google Earth for the 3 dimensional aspects showing 
 the hills where we hike. It plots our track logs very well. This 3d 
 feature uses lots of computer resources and is unnecessary to 
 sundials. Here the 2d maps and satellite images of Google maps or 
 equivalent are all we need.  I was used to creating and using kml 
 files with Google Earth so I avoided learning how to use such files in 
 the simpler Google Maps. Like computers sometimes I have to say 
 Excuse me, my brain is full.
In theory at least, you can submit KML files to Google Earth, and it 
will ignore the three dimensional information.

 Regards, Roger Bailey

 --
 From: Richard Mallett 100114@compuserve.com
 Sent: Tuesday, April 28, 2009 5:16 AM
 To: Phil Walker phil.wal...@sunandshadows.net
 Cc: Sundial List sundial@uni-koeln.de; Carl and Barbara Sabanski 
 saban...@escape.ca; Eddie French efre...@jerseymail.co.uk; J P 
 Lester john@tiscali.co.uk; nicolasever...@libero.it; Roger 
 Bailey rtbai...@telus.net; Woody Sullivan (Earthdial) 
 wo...@astro.washington.edu
 Subject: Re: Shropshire Sundials And Google Earth

 Phil Walker wrote:

 Back in December, Roger Bailey set us a challenge for 2009, to
 populate a sundial database and display the details using Google
 Earth. I rose to the challenge, in a small way, and here is the result
 on my website: www.shropshire-sundials.net   I hope you to enjoy it.



 Roger also showed us how to start a sundial trail using Google Earth
 and in a later post more ideas on how to add content to the KML file.
 My approach was somewhat different,  I decided to work directly with
 the KML language.



 KML stands for Keyhole Markup Language and is a simple, human-readable
 format used by Google Earth and now by other Earth browsers like
 Microsoft Virtual Earth and NASA WorldWind. KML 2.2 is now an
 international standard , located at www.opengeospatial.org.





-- 
Richard Mallett
Eaton Bray, Dunstable
South Beds. UK


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