So I'm new to this, and I have seen models where the Sun rotates around the North Pole shining down on our flat Earth.  When the seasons change, the Sun's circular path varies from a slow, tighter rotation over the Tropic of Cancer to a faster moving, but much longer path above the Tropic of Capricorn. This model would make the outer regions of the disc much colder as there is a much larger land mass to cover.  Can someone please explain?