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Scientific Revolutions: Historical Perspective 

Scientific Revolutions: Historical Perspective . Greek Astronomy. Limitied in size (since it has a center). No void in nature. Sub-Lunar vs. Supra-Lunar. Planets move in circles. Astronomy – Basic Concepts. Massimo Mogi Vicentini: 3D graphics and videos ...

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Scientific Revolutions: Historical Perspective 

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  1. Scientific Revolutions: Historical Perspective  Greek Astronomy

  2. Limitied in size (since it has a center) • No void in nature • Sub-Lunar vs. Supra-Lunar • Planets move in circles

  3. Astronomy – Basic Concepts Massimo Mogi Vicentini: 3D graphics and videos... http://www.mogi-vice.com/Pagine/Downloads.html Dr. Ido Yavetz, Tel Aviv University http://mhc.tau.ac.il/fellows/yavetz Video 01-05

  4. The retrograde motion of planets

  5. The retrograde motion of planets

  6. The retrograde motion of Mars video 06-07

  7. The retrograde motion of planets??

  8. The retrograde motion of planets?? Solution 1: Eudoxus’ Homocentric Spheres

  9. Eudoxosof Knidos(@395-390 BCE) Homocentric Spheres Principles: The earth is the center of the universe. All celestial motion is circular. All celestial motion is regular. The center of all celestial motion is the center of the universe. The apparent irregular and non-circular motions of celestial bodies is a result of the combinations of real, circular motions that satisfy principles (1) - (5). video 08-09

  10. The retrograde motion of planets?? Solution 2: Ptolemy’s Epicycles (actually Apollonius’ idea)

  11. epicycles

  12. The retrograde motion of planets

  13. The retrograde motion of planets

  14. video 10-11

  15. The equant

  16. equant video 12-13

  17. Claudius Ptolemy (AD 90 – c. AD 168)The Almagest

  18. The Almagest

  19. video 14

  20. Cosmology – Physics Astronomy – Mathematics Saving the Appearances

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