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 House of the Rising Sun Like many classic folk ballads, "The House of the Rising Sun" is of uncertain authorship. Musicologists say that it is based on the tradition of broadside ballads, and thematically it has some resemblance to the 16th-century ballad "The Unfortunate Rake". According to Alan Lomax, "Rising Sun" was used as the name of a bawdy house in two traditional English songs, and it was also a name for English pubs. He further suggested that the melody might be related to a 17th-century folk song, "Lord Barnard and Little Musgrave", also known as "Matty Groves", but a survey by Bertrand Bronson showed