Re: Dialist's Companion

2003-09-26 Thread david . pawley
Can the Dialist Compansion show both. Message date : Sep 25 2003, 08:15 PM From : Fred Sawyer <[EMAIL PROTECTED]>To : Sundial List Copy to : Subject : Dialist's Companion In a recent response to John Carmichael, I referred to some capabilities of the Dialist's

Re: Re: Dialist's Companion

2003-09-26 Thread david . pawley
Rene Vinck of Antwerp, Belgium has written about using an Astro Compass for finding wall declination in the current Volume 10 of the NASS Compendium. The dialist's Companion would be so very useful to all those folk using these accurate instruments if it showed the sun's azimuth in 360 degrees

Re: Dialist's Companion

2003-09-26 Thread Fred Sawyer
Simply because dialists tend to look south towards the sun - with hour angle and azimuth calculated from the sun's meridian position. At this point we don't have any definite plans for a new version of the program. If we do an update, we'll consider that option. Fred - Original

Re: Dialist's Companion

2003-09-26 Thread John Hall
x-richFred and Thibaud As one of those people who live in the southern hemisphere the convention of looking south does not work real well up here ;-)) When teaching students of architecture solar geometry I used to suggest the convention of 'Equator facing' to look toward the sun - this

Re: Gnomons and screws

2003-09-26 Thread john . davis
Hi Mike, I've had responses that indicate that Melville used a variety of methods to attach gnomons, from leading them in, fitting them with flanges underneath to the twisted tenons that you mentioned. No 2BA screws, though! So I am convinced that the ones on the Dunmore (Ireland) dial are

Re: Dialist's Companion

2003-09-26 Thread Rudolf Hooijenga
Thank you for the description, Fred. However, somehow I felt knew this already, so I must have been in the program somewhere. When in the main screen, hit F1; then, select Dates and Times. Ah! _That's_ where I've got it from. great program, that... thank you Fred, and Bob. Rudolf -

Re: Dialist's Companion

2003-09-26 Thread Thibaud Taudin-Chabot
A navigator is not a dialist. A navigator always wants to know where the North is, that is why North is upon your maps. A dialist looks always to the South and is turning left or right from that direction. Thibaud At 07:39 26-09-2003, you wrote: Why is the sun's azimuth shown as 180 degrees east