Title
Instrument for timekeeping and direction
Caption
Instruments for timekeeping and direction finding in the Islamic world is based on shadow and twilight phenomena depending on the position of the sun.
Date
Feb 10, 2011
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP11A02_381
License type
Rights managed
Available size
50,6Mb (1,6Mb) / 13,3in x 14,7in / 4000 x 4422 (300dpi)