3. THIS PROJECT
3.1 Stopping the sun
The sun gives us the impression of movement basically because the earth is revolving under our feet. One way to stop moving while rotating is to locate yourself in the center or axis of the rotation.
Imagine a carousel. When you go to its center, you will still rotate, but not move sideways any longer.
The same way, the hot focus of the Scheffler Reflector is placed in the axis of rotation of the reflector. Thus it remains in a fixed place, giving maximum convenience.
Wolfgang