Sundials and related time-measuring instruments, with the astronomical and mathematical basis for their construction.
Conic sundials are the most common type of ancient Greek sundials to have survived, and they are crucial to our understanding of early Greek astronomy. A group of these sundials, found on the island o
In this article, a new aspect of a possible connection between the development of ancient Greek and Roman sundials and the history of conic sections is analyzed: On conical sundials, a conic section o