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model Geocentric model In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a superseded description of the Universe with Earth at the center.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,
Gentoo (term) Gentoo (term) Gentoo, also spelled Gentue or Jentue, was a term used by Europeans for the native inhabitants of India before the word Hindu, with its religious connotation, was used to distinguish a group from Muslims and members of other religious groups in India. "Gentio" and "Gentoo" terms were applied historically to indigenous peoples of India; later, to Telugu-speaking persons and their language in then Madras Province (now the Andhra region), as opposed to the Malbars, or Tamil speakers and their language (in what is now Tamil Nadu). An example from the Monsignor Sebastiao Rodolfo Dalgado is "moros, gentivos e