Hi all,
This discussion reminded me of 24 hour Military clock from the 1960s. Did a
internet search and found a 24 hour watch. Just the thing for setting the
recorder on the TV as they use 24 hour time.
http://www.aaawatchclub.com/24_hour_dial_gold.html
Roderick Wall.
-----Original Message-----
From: Roger Bailey
Sent: Friday, January 21, 2011 5:14 AM
To: Roger Bailey ; [email protected] ; Sundial List
Subject: Re: 360 degree
The confusion on noon has nothing to do with the day starting at midnight or
noon. It has to do with the definition of the Republican hour. Were there 10
hours per day as shown on the "Les Vigneaux" sundial or two 10 hour periods
starting at midnight and noon? I guess it is two 10 hour periods, like our
two 12 hour periods. This would allow clock makers to just change the face
of the 12 hour clock to a 10 hour clock. Otherwise the gears would have to
be changed to give a 24 hour, 10 Republican hour clock.
The "Les Vigneaux" sundial is unusual as it is north facing, declining east,
showing early morning hours. The sun would not be on the dial at noon. If an
hour line for noon were drawn on the dial, it would be, as always on a VD
sundial, a vertical line, the meridian, marked as 5 hours.
I was drawn to this location by the corner dials on the village church. The
Republican sundial was right next door.
See:
http://www.waymarking.com/waymarks/WM7EV1_Corner_Sundials_on_Church_Tower_Les_Vigneaux_Vallouise_Hautes_Alpes_France
Regards,
Roger Bailey
--------------------------------------------------
From: "Roger Bailey" <[email protected]>
Sent: Tuesday, January 18, 2011 8:16 PM
To: <[email protected]>; "Sundial List" <[email protected]>
Subject: Re: 360 degree
Hi Brent,
If you were in charge of things, we could call you Napoleon. What you are
proposing is the French Republican system, the metric system applied to
time, 100 grad for a quadrant, 90 degrees, 10 hours a day, 100 minutes
per hour, all totally rational. They even produced clocks and sundials
based on these rational, ok decimal, systems. A few still exist. Here is
my favourite example, a Republican sundial with a relativistic correction.
See
http://www.waymarking.com/waymarks/WM7ETZ_Republican_Sundial_Les_Vigneaux_Vallouise_Hautes_Alpes_France
As this is a text message, paste the url into your browser to see this
fine sundial.
Regards, Roger Bailey
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