Cosmology in medieval Islam empirical testing. His work thus marked a turning point in astronomy, which may be considered a "Scientific Revolution before the Renaissance". His rectified model was later adapted into a heliocentric model by Copernicus, which was mathematically achieved by reversing the direction of the last vector connecting the Earth to the Sun. In the published version of his masterwork, "De revolutionibus orbium coelestium", Copernicus also cites the theories of al-Battani and Averroes as influences. An area of active discussion in the Maragheh school, and later the Samarkand and Istanbul observatories, was the possibility of the Earth's rotation. Supporters of this theory
The Creation of the Sun, Moon and Vegetation another image of God points towards the Sun with his right hand and toward the faint Moon with his left. His face expresses the force needed for the creation of the abode of living beings. The abstract patterns of drapery emphasize the motion of both figures of God. "The Creation of the Sun, Moon and Planets" is featured on the postage stamps of Vatican City (issue of 1994) and India (issue of 1975). The Creation of the Sun, Moon and Vegetation The Creation of the Sun, Moon and Vegetation, (sometimes The Creation of the Sun, Moon, and Plants or The