ARMILLARY SPHERES
A CONTRASTING PAIR DISPLAYED TOGETHER
A pair of armillary spheres dating to about 1700 show competing models of the universe. One has the Earth stationary at the center in the Ptolemaic system of the ancient Greeks. The other shows the later Copernican system, in which the sun is at the center and the Earth and the other planets revolve around it HoHS
GAUDIUM SUB SOLE . SUNDIALS . MEDIEVAL TO MODERN 