Orrery on display in Kassel at the Astronomisch-Physikalisches Kabinett and in Dresden at the Mathematisch-Physikalischer Salon. In "De revolutionibus orbium coelestium", published in Nuremberg in 1543, Nicolaus Copernicus challenged the Western teaching of a geocentric universe in which the Sun revolved daily around the Earth. He observed that some Greek philosophers had proposed a heliocentric universe. This simplified the apparent epicyclic motions of the planets, making it feasible to represent the planets' paths as simple circles. This could be modelled by the use of gears. Tycho Brahe's improved instruments made precise observations of the skies (1576–1601), and from these Johannes Kepler
The House of the Rising Sun no clear relationship between the two songs. Lomax proposed that the location of the house was then relocated from England to New Orleans by white southern performers. However, Vance Randolph proposed an alternative French origin, the "rising sun" referring to the decorative use of the sunburst insignia dating to the time of Louis XIV, which was brought to North America by French immigrants. "House of Rising Sun" was said to have been known by miners in 1905. The oldest published version of the lyrics is that printed by Robert Winslow Gordon in 1925, in a column "Old Songs That Men