Geocentric model work, the "Almagest", was the culmination of centuries of work by Hellenic, Hellenistic and Babylonian astronomers. For over a millennium European and Islamic astronomers assumed it was the correct cosmological model. Because of its influence, people sometimes wrongly think the Ptolemaic system is identical with the geocentric model. Ptolemy argued that the Earth was a sphere in the center of the universe, from the simple observation that half the stars were above the horizon and half were below the horizon at any time (stars on rotating stellar sphere), and the assumption that the stars were all at some modest distance
First term of Fernando Chui as Chief Executive of Macau First term of Fernando Chui as Chief Executive of Macau The First term of Fernando Chui Sai On as Chief Executive of Macau, officially considered part of "The 3rd term Chief Executive of Macau", relates to the period of governance of Macau since the transfer of sovereignty of Macau, between 20 December 2009 and 20 December 2014. Fernando Chui Sai On was elected in mid 2009 by 300-member Selection Committee as the second Chief Executive of Macau. The policy bureaux were under several reorganisations during the term as following: The Executive Council was presided by President Fernando Chui Sai On