Geocentric model Geocentric model In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under the geocentric model, the Sun, Moon, stars, and planets all orbited Earth. The geocentric model served as the predominant description of the cosmos in many ancient civilizations, such as those of Aristotle and Ptolemy. Two observations supported the idea that Earth was the center of the Universe. First, from anywhere on Earth, the Sun appears to revolve around Earth once per day. While the Moon and the planets have their own motions,
Central Europe enlightened German humanistic culture of the 19th century. German-speaking Jews from turn of the 20th century Vienna, Budapest and Prague became representatives of what many consider to be Central European culture at its best, though the Nazi version of "Mitteleuropa" destroyed this kind of culture instead. However, the term "Mitteleuropa" is now widely used again in German education and media without negative meaning, especially since the end of communism. In fact, many people from the new states of Germany do not identify themselves as being part of Western Europe and therefore prefer the term "Mitteleuropa". Following World War II, large