Seriously, I've been contemplating this precise problem for the past three
months - how to design gears for a planetarium clock. Looks like he got to
it first - but why not give it to Timex so we can all afford it?
Ross Caldwell
From: T. M. Taudin-Chabot [EMAIL PROTECTED]
To:
Thank you for the information I received .
I will have to find an escape route from the
tour to see the Dials
Colin
52.5N 0.75W
Das,
Thanks for passing on my request for information on polarization
sundials to Alan Mills. I just received a copy of the articles
by him today. Please pass on my thanks to him and the Astronomy
Group. My grateful thanks to you as well! I'll be sure to
forward you all a photograph of my future
Alain MORY wrote:
I did'nt clearly expose my problem : A wall must be built above a
foundation that has to be exactly oriented face to south. This wall will
contain an iron armature, so that a magnetic compass will not work
exactly near the wall.
I don't see this as a problem. First,
Message text written by John Carmichael
Although I have has a most interesting morning reading about this, I fear
that your questionner is going to be disappointed. One can find (and
astonomers have!) very many periodicities associated with the
earth/moon/sun system. Many of these are very
One thing to be aware of if you do surface stone or glass with power
tools is that the dust is a health hazard. Keep the work wet and avoid
breathing the dust/mist. At a hobby level this probably won't kill you
but it is a thing professional opticians are very careful with.
Peter
--
Dear Friends,
Since The topic of watches has been broached, I would like to point you
to a watch dealer's page which includes excellent photographs of early
watches - watches which were set from sundials since in many cases that
was the only source of time available.
The URL takes you to the
All,
Do you know if the following dial has ever been built?
Yvone Masse's design described as the second dial in his article Two Mean
Analemmatic Sundials in the NASS Compendium of December 1997. I am most
interested in the dial shown in figure 6 which can be corrected for EOT,
DST, and
It is not a sundial, but did you ever see a beautiful watch? Look at:
http://www.klaauwwatches.nl/index.htm
-
Thibaud Taudin-Chabot
52°18'19.85 North 04°51'09.45 East
home email: [EMAIL PROTECTED]
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