moon dial

2001-04-18 Thread Frank Evans
Greetings fellow dialists, Thanks Richard Mallett and all for clarifications regarding the moon landings and the strange case of the flag that fluttered. I raise my right hand and declare that I have always believed that (brave) men landed on the moon in 1969. Honest! However, nobody really

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

SCADD

2001-04-18 Thread Steve Lelievre
Somebody was kind enough to contact me with some improvements to my sundial plotting macro for DeltaCad. Unfortunately, I have accidentally deleted the mail item and can't remember who the sender was. Please resend! Steve Want to know who's going to win in your constituency? Try my

Re: moon dial

2001-04-18 Thread Dave Bell
Hi, Frank! You're right, I noticed no-one mentioned the sundial possibilities. The biggest problem is that the Moon rotates so slowly. You will have approximately equal days and nights of 14+ Earth days each! The equation of time becomes extremely more complicated as well, as the Earth-Moon

Re: moon dial

2001-04-18 Thread fer j. de vries
Hi Frank, In Jahreschrift 2000 der Deutsche Gesellschaft für Chronometrie, Band 39, Germany, is an article about dials on the moon, written by Heinz Sigmund. I hope you can read German. But isn't the earth the most beautiful sundial to look at if you are on the moon? Best wishes, Fer. Fer J.

Re: moon dial

2001-04-18 Thread Mark Gingrich
Fer J. de Vries wrote: But isn't the earth the most beautiful sundial to look at if you are on the moon? Indeed. Moreover, I often like to point out that the Earth itself has the distinction of being the world's largest terrella! ;-) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~