Re: Ibn al Shatir sundial

1999-03-08 Thread Jean-Paul Cornec
The book by R.J.R. ROHR "Les Cadrans Solaires" displays a picture of that sundial with a long description on pp 173-176 of the french edition. This book was translated in german ( 'Die Sonnenuhr', Geschichte, Theorie, Funktion. Verlag Callwey München, 1982). There is also an US edition (Su

Ibn al Shatir sundial

1999-03-08 Thread Claude Hartman
I received the following request. If anyone has the information, please post it and I will pass it on to the one who asked. -- original request: -- I am an architect from Boston Massachusetts. Our firm is doing research for a project in Kuwait I came across your web site while looking

Re: A Pole at the Pole

1999-03-08 Thread Jim_Cobb
Mike Shaw> I am rather disappointed to learn that there isn't an Mike Shaw> actual pole sticking out of the earth at the South pole to Mike Shaw> mark the spot. I wonder if there is one at the North pole? Mike Shaw> It would be really neat to drop an equatorial dial plate Mike Shaw> over it and c

Re: A Pole at the Pole

1999-03-08 Thread Les Cowley
>I am rather disappointed to learn that there isn't an >actual pole sticking out of the earth at the South pole to >mark the spot. Further to my previous posting, there is indeed a marker pole at the true geographical pole. The marker is topped by a disc which is regrettably not a sundial. I

Re: A Pole at the Pole

1999-03-08 Thread Les Cowley
>I am rather disappointed to learn that there isn't an >actual pole sticking out of the earth at the South pole to >mark the spot. Perhaps there is one at the South Pole (and also a sundial in that case). Try: http://www.spole.gov/internet/photos/0111halo/ I will try to find out for sure from

Densest population band

1999-03-08 Thread Chris Lusby
Well, I was joking of course, but let's look at this seriously. If we take a band through Sydney (34 degrees latitide), just wide enough to include the stadium, which is 220m diameter, the band's area will be 4 * .220 * cos(34), which is 7300 square km. As for the South Pole Station, the in

A Pole at the Pole

1999-03-08 Thread The Shaws
I am rather disappointed to learn that there isn't an actual pole sticking out of the earth at the South pole to mark the spot. I wonder if there is one at the North pole? It would be really neat to drop an equatorial dial plate over it and create an instant sundial, even if it would only work f