Greetings! When I was a young boy it amazed me that it was actually possible, but now realise it is just a form of sundial.
It is situated in Pretoria and can only be seen in action less than an hour every year (annum), and is is a special feature of the "Voortrekker Monument" (roughly translated as Pioneers Monument) from South-Africa's controversial past. A spot of sunlight (about a foot in diameter) shining through a hole in the roof, onto the middle of an epitaph in the centre of this monument, at exactly 12 'o clock (Standard time) on December 16, every year, to commemorate a certain event in history. On the other days of the year, the sunlight does not enter the monument at all. A picture of the monument can be seen at: http://www.pretoria.co.za/tourism/frameset_tourism.html Cheers, D. Anton Reynecke Content-Type: application/ms-tnef Attachment converted: MAC Hard Disk:Sundial in Pretoria (????/----) (00005275)
