Uploaded November 2017 | Updated September 2026, 2 weeks ago
The center dials on the sun / moon rise-set mechanism depict the length in hours of each. Notice that BOTH the dial hands and the dial numbers move past each other. This allows for a greater sweep of the hand across the face of the sector dial and was necessitated because of the small movement that would be had from only having the dial hand in motion.
The center dials on the sun / moon rise-set mechanism depict the length in hours of each. Notice that BOTH the dial hands and the dial numbers move past each other. This allows for a greater sweep of the hand across the face of the sector dial and was necessitated because of the small movement that would be had from only having the dial hand in motion.
