It is an astro compass, I have four of them and they work well, I got my first one when I was at school in England, I was 16 at the time. I cover their use in my spreadsheets: illustrating-shadows.xls (for Microsoft Office, Excel) and: illustrating-shadows.ods (for Open Office, a free system almost but not quite compatible hence why the different version, with Excel) as well as in a pamphlet: www-astro-compass.pdf all of which are on my web site:
www.illustratingshadows.com And as an unrelated update re my web site, I have added an Algol sundial program with a free Algol interpreter (I used Algol on the Elliott 803 in college in the 1960s), as well as IBM 1401 and 360 horizontal and vertical sundial programs in SPS and Autocoder, and BAL respectively, along with simulators for those machines and assemblers and debugging aids, all open source of course. All for merely nostalgic purposes since I do not imagine too many people use Algol nor wish to hone their early computer skills. Simon --- On Tue, 6/23/09, Peter Mayer <[email protected]> wrote: > From: Peter Mayer <[email protected]> > Subject: Sundial compass on eBay > To: "Sundials" <[email protected]> > Date: Tuesday, June 23, 2009, 3:32 AM > Hi, > > There's an interesting-looking RAF sun > compass for sale on EBay: > Collectables > Militaria > World War II (1939-1945) > > RAF > > best wishes, > > > Peter > > -------------------------- > Peter Mayer > Politics Department > The University of Adelaide, AUSTRALIA 5005 > Ph : +61 8 8303 5606 > Fax : +61 8 8303 3443 > e-mail: [email protected] > CRICOS Provider Number 00123M > ----------------------------------------------------------- > This email message is intended only for the addressee(s) > and contains information that may be confidential and/or > copyright. If you are not the intended recipient > please > notify the sender by reply email and immediately delete > this email. Use, disclosure or reproduction of this email > by anyone other than the intended recipient(s) is strictly > prohibited. No representation is made that this email or > any attachments are free of viruses. Virus scanning is > recommended and is the responsibility of the recipient. > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
