Geocentric model and planets were holes in invisible wheels surrounding Earth; through the holes, humans could see concealed fire. About the same time, Pythagoras thought that the Earth was a sphere (in accordance with observations of eclipses), but not at the center; they believed that it was in motion around an unseen fire. Later these views were combined, so most educated Greeks from the 4th century BC on thought that the Earth was a sphere at the center of the universe. In the 4th century BC, two influential Greek philosophers, Plato and his student Aristotle, wrote works based on the geocentric model.
Second term of Edmund Ho as Chief Executive of Macau Second term of Edmund Ho as Chief Executive of Macau The Second term of Edmund Ho Hau Wah as Chief Executive of Macau, officially considered part of "The 2nd term Chief Executive of Macau", relates to the period of governance of Macau since the transfer of sovereignty of Macau, between 20 December 2004 and 20 December 2009. Edmund Ho Hau Wah was reelected in mid 2004 by 300-member Selection Committee. The policy bureaux were under several reorganisations during the term as following: The Executive Council was presided by President Edmund Ho Hau Wah and consisted of total 10 members. All