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Text File  |  1994-10-26  |  304b  |  9 lines
  1. APOLLONIUS OF PERGA: 262-190 BC
  2.  
  3. The Hellenistic mathematician APOLLONIUS OF PERGA, 
  4. circa 262-c.190 BC, noted that the annual motion of 
  5. the Sun can be approximated by a circle with the 
  6. Earth slightly off-center, or eccentric, thus 
  7. accounting for the observed variation in speed over 
  8. a year.
  9.