I don’t think Shen Kuo’s willow leaf explanation (where traversing the “point” is part of the explanatory power and not mathematically explained) of retrograde motion in a geocentric model is in the same realm as Kepler producing the math showing elliptic orbits in a heliocentric model.
soundoftheunheard t1_j54fcfe wrote
Reply to comment by hmountain in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6
I don’t think Shen Kuo’s willow leaf explanation (where traversing the “point” is part of the explanatory power and not mathematically explained) of retrograde motion in a geocentric model is in the same realm as Kepler producing the math showing elliptic orbits in a heliocentric model.
page 17 is where I found some some more details