De revolutionibus orbium coelestium Earth's axis rigidly to a Sun-centered sphere. The unfortunate consequence was that the terrestrial rotation axis then maintained the same inclination with respect to the Sun as the sphere turned, eliminating the seasons." To explain the seasons, he had to propose a third motion, "an annual contrary conical sweep of the terrestrial axis". It was not until the Great Comet of 1577, which moved as if there were no spheres to crash through, that the idea was challenged. In 1609, Kepler fixed Copernicus' theory by stating that the planets orbit the sun not in circles, but ellipses. Only after Kepler's
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