Re: Pin-hole projections on meridian lines in Italy.

2006-10-26 Thread Bill Thayer
Does anybody know what happened to the web pages that included Images of the solar eclipse of August 11, 1999 seen as pin-hole projections on various meridian lines in Italy. Bob, As I think you now, the Almanacco is still here http://tinyurl.com/yycey3 but they've deleted older stuff to

Re: Pin-hole projections on meridian lines in Italy.

2006-10-26 Thread Bruno Caracciolo
You can try this url: http://www.thebells.net/eclipse/ Bruno Caracciolo - Original Message - From: Robert Terwilliger To: 'Sundial Mailing List' Sent: Thursday, October 26, 2006 3:55 AM Subject: Pin-hole projections on meridian lines in Italy. Does anybody

RE: Portable Dial Adjusted for EOT and DST

2006-10-26 Thread Roger Bailey
Aha, reverse Italian hours! The blue lines on Brad's drawing showing Babylonian hours, the time from sunrise, also would show reversed Italian hours, the time until sunset. Although the normal convention is for Italian hours to start at sunset and count forward through the night and following day,

RE: Portable Dial Adjusted for EOT and DST

2006-10-26 Thread Lufkin, Brad \(Mission Systems\)
I wasn't aware that conventional Italian hours counted forward from sunset. Here's a new diagram showing Italian hours so defined. Brad -Original Message- From: Roger Bailey [mailto:[EMAIL PROTECTED] Sent: Thursday, October 26, 2006 1:29 PM To: Edley McKnight; Lufkin, Brad (Mission

date scale

2006-10-26 Thread Tracy Paine
Hello everyone! Thank you all for the help you gave mepreviously regarding "finding true north." I am now going to be pouring concrete for the date scale in my ananemmatic sundial. I am making the concrete pad 3 feet wide and 10 feet long. I have one question: do I lay out the center lineof

RE: Portable Dial Adjusted for EOT and DST

2006-10-26 Thread Edley McKnight
Hi Roger, Brad, I was just supposing that it was 9 hours before sunset, and guessing that I'd have to add 6 hours to the 3 shown. I AM interested in hours before sunset whatever one might call them locally. For instance, at exactly 45 degrees north latitude, when a vertical pole's shadow is

Re: date scale

2006-10-26 Thread Chris Lusby Taylor
Hi Tracy, The date scale should be on the N-S centreline of the elliptical dial (i.e. the minor axis of the ellipse). The position of the 12 noon point is irrelevant. 3 feet by 10 feet is a big scale. How big is the dial? Regards Chris - Original Message - From: Tracy Paine

date scale

2006-10-26 Thread Tracy Paine
Hello Thank you Chris. In regards to your question, the major axis of my sundial is 33 feet. I used large basalt rocks for the hour marks. I tried to send a picture of it here, but the file was too big I guess. I plan to mosaic the top of the concrete date scale after it is cured. I would

Re: date scale

2006-10-26 Thread Tracy Paine
Hi Roger Thanks for the info. I have HUGE rocks for the summer, spring/fall, and winter sunrises that lie just outside the sundial ellipse. However, after reading through the seasonal markers section of your website I now realize what the seasonal markers are. I placed the rocks so that the