Three Constructions

This activity shows the three geometric constructions used by Ptolemy and others in ancient Greece to model the motion of planets along the ecliptic. Ptolemy included all three in most of his models of the planets in order to account for their retrograde motions and their apparent changes in speed along the ecliptic.

 

Tim Wotherspoon

 
Resource Type
Activity
Tags
Target Group (Age)
3 – 19+
Language
English
 
 
 
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