Hi all, My recent Test Message confirms that my emails are once again appearing on the SML. Below is one response which, if it got through during the 'black-out' wasn't reflected back to me. Sorry if it's a repeat.
Tony Moss, ***************************** Subject: Re: Reducing Vandalism Sent: 12/3/02 5:52 pm To: Sundial Mail List, [email protected] Edley, > >Tony, John, Robert and all, > >Several people wanted a quick answer and sketches of the particular >ridge dial mentioned, not a more complete coverage of ridge dials at >this time. So, Here it is in acrobat pdf form. >http://www.vandp.com/redvand.pdf Thanks for this. I printed out the PDF and have spent some while trying to visualise the dial you describe in 'solid three dimensions'and have reluctantly to admit defeat - and in public too in the spirit of our new mode of communication :-( A 'cross section' that is little more than a single line at 45° conveys very little to me I'm afraid as I can make it represent an infinity of things lying on a narrow plane viewed edgewise. What is needed for my creaking grey matter is a simple 3D sketch relating the 2D lines in your plan and elevations to their orientation in space. In return I'll happily send you a PDF of a 3D concept model which relates the Equatorial Dial (as a trigon) to vertical, horizontal, polar and north-facing vertical dial - the idea for which I recently cribbed from Frank Cousins' book and re-drew in colour. Copies to anyone else on request. This was converted into a solid model for a recent talk to a Rotary Club 'All about sundials....in twenty minutes' - tall order! With the help of the model and a bright point lightsource it was almost achieved....well....the common ones anyway! Best Wishes Tony Moss -
