History and Philosophy of Western Astronomy - The Diigo Meta page

• 09 Dec 15
  

  katehaskins

  astronomy scienceliteracy western

• 29 Jan 08
  

  James Linzel

  astronomy scienceliteracy western

  • • What two basic kinds of models have been proposed to explain the  motions of the planets? 
    • What is the Ptolemaic model? What new things did Ptolemy add to his  model? 
    • Why are epicycles needed in Ptolemy's model?
  • • In what ways was the Ptolemaic model a good scientific model and in  what ways was it not? 
    • What is the Copernican model and how did it explain retrograde motion?

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