335 B.C.:This Greek philosopher uses lunar eclipses to prove the Earth is ball shaped
..... Aristotle, ((384 
BC  322 BC) the first scientist whose view that the Earth was the centre of .... 
Aristarchus developed the Lunar Dichotomy method and the Eclipse Diagram, 
the .... Seleucus may have proved the heliocentric theory using trigonometric 
methods... [DOC] [TLE] Galileo and Einstein [PAR] Aug 21, 2009 ... HOW THE GREEKS USED GEOMETRY TO UNDERSTAND THE STARS .