The wind goeth toward the south, and turneth about unto the north; it whirleth about continually, and the wind returneth again according to his circuits.
( Ecclesiastes 1:6 )
Understanding relative motion is the power to comprehend that heliocentric and geocentrospheric models coexist. The geocentrospheric model is empirical. The heliocentric model is theoretical.
Matty (Headwind) 