Evans' theory on Aristarchos

Author:A. G. Gomez (agg29@ou.ac.uk)

Illustration of James Evans' theory on how Aristarchos might have reached his famous 87° half moon elongation (in History and Practice of Ancient Astronomy, p. 72).

New Resources

GeoGebra around GeoGebra
အခြေခံ data အခေါ်အဝေါ်များ
Trophy (version 2)
Tube moving at distance of a curve.
Trophy

Discover Resources

Slope
Stern-Brocot
Notes4GeometryInfiniteDecompositions2ndExample.ggb
Geogebra challenge #1
สามเหลี่ยมพีทาโกรัส
Soldier Roation

Discover Topics

Normal Distribution
Arithmetic Operations
Continuity
Median Value
Difference and Slope