The polar day/night cycle should be one of the most established facts in all astronomy along with its cause. The evolution of Arctic sea ice is perhaps one of the easiest ways to appreciate the surface rotation to the Sun as a secondary consequence of the Earth's orbital motion through space.

I am not striving against empiricists, I am putting the issue front and center using actual imaging from the Amundsen- Scott station at the South pole where orbital night dominates for those who can appreciate the dual surface rotations of the planet corresponding to dual day/night cycles.

http://www.webcams.travel/webcam/ful...h-Pole-Station


The river of bile that flows through this forum vanishes in these threads which use as much imaging and graphics as possible to expand appreciation of the connection between the celestial arena and terrestrial experiences. No point in taunting people who can't explain why there is roughly 6 months of darkness at the Amundsen station followed by 6 months of daylight because they want to stick with the old 'tilt' explanation.