RE: Astrolabe on coin

2001-04-19 Thread Dave Bell
Very nice site! It was interesting to see how downright LOGICALLY the dimensions, material, shape, and finish of the various denominations are layed out. US and UK could take some lessons here... Dave 37.3 N 121.9 W On Thu, 19 Apr 2001, Richard Langley wrote: > See also: >

RE: Astrolabe on coin

2001-04-19 Thread Richard Langley
See also: -- Richard Langley On Wed, 18 Apr 2001, Martha A. Villegas wrote: >On the James E. Morrison site about astrolabes, there is a very nice picture >of this coin > >http://www.astrolabes.org/links.htm > >Martha A. Villegas > >-

RE: Astrolabe on coin

2001-04-19 Thread Martha A. Villegas
On the James E. Morrison site about astrolabes, there is a very nice picture of this coin http://www.astrolabes.org/links.htm Martha A. Villegas -Mensaje original- De: Thibaud Taudin-Chabot <[EMAIL PROTECTED]> Para: sundial@rrz.uni-koeln.de Fecha: Martes, 17 de Abril de 2001 01:07 p.m.

Re: Astrolabe on coin

2001-04-18 Thread Mike Cowham
>On the Chech coin of 20 Crowns is a picture of an astrolabe. >Is this a copy of an existing one or is it a design made only for the coin? I was in Brno, Czech Republic last year and got one of these in my change. I went back again later for a vacation and asked at our hotel to see if th

Re: Astrolabe

1998-04-19 Thread Ron Doerfler
Hi All, I would suggest that you find the book _All the Astrolabes_, by Harold N. Saunders, from 1984. I got it through interlibrary loan. It contains detailed instructions in the appendices for calculating all curves on a variety of astrolabe types. The book describes various types of astrola

Re: Astrolabe

1998-04-17 Thread Jim Morrison
The site mentioned below by Angelo Merletti does a wonderful job of creating an astrolabe like device. It is a form of astrolabe in the sense that any instrument that uses altitudes to position celestial objects can be called an astrolabe. It is not, however, the instrument that is usually meant

Re: Astrolabe

1998-04-17 Thread Slawomir K. Grzechnik
At 11:22 AM 4/16/98 EDT, you wrote: >By chance would anyone here happen to have any instructions on making an >Astrolabe? Or mayby a copy of some of the varous treatise on the subject from >some old manuscripes. that could be scanned in? > >

RE: Astrolabe

1998-04-17 Thread Nicelli Alberto
The old book by W. Schroeder , < Practical Astronomy > , is a good reference. It has many pages devoted to the astrolabe theory and shows a graphic way to make an astrolabe. If you are familiar with math you'll find quite easy to translate the graphic instructions in trig formulae in order to simp

Re: Astrolabe

1998-04-16 Thread Piero Ranfagni
Tinkler wrote: > > By chance would anyone here happen to have any instructions on making an > Astrolabe? Or mayby a copy of some of the varous treatise on the subject from > some old manuscripes. that could be scanned in? > >

RE: Astrolabe

1998-04-16 Thread Steve Turley
This doesn't exactly answer your question, but look at http://myhouse.com/mc/planet/astrodir/personal.htm I bought one of his astrolabes and it comes with quite a bit of information on how it was created. He may be willing to help you. -Original Message- From: Tinkler [mailto:[EMAIL PROTE