When we look at the accepted flat earth map we see the sun moving in circles. During the Northern Hemisphere summer the sun moves in circles north of the equator with its maximum at the Tropic of Cancer line located 23.5 degrees north of the equator and during the summer of the Southern Hemisphere the sun moves in circles south of the equator with its maximum at the Tropic of Capricorn line located 23.5 degrees south of the equator.
So refer to the flat earth map and you will see Antarctica, now not at the South Pole, because there is no South Pole on a flat earth, but instead Antarctica becomes a ring surrounding the oceans of the flat earth. So if you are in Antarctica on a flat earth, according to this map, the sun must always be towards your North [ie: towards the center of the flat earth map]. It can move from east to west but it has to be always on the north side. It could never appear on the southern side. But it does appear on the southern side. You don’t have to go to Antarctica to see this. If you go south in South America or Australia you can see the sun rising in the southern side and going up into the northern side and again looping back and setting in the south side. And if you go far enough south you can see the ‘midnight sun’. This is the same effect as is observed in the Northern Hemisphere in countries like Sweden when, during the longest days of the year, the sun does not set at all but can be seen constantly for days going around and around in the sky, moving around the horizon in all directions. This also occurs in Antarctica. You can see the sun moving around all the way around the horizon, 360 degrees. You can look south and see the sun, as we would expect to see on a globe earth.
This fact is denied by many flat earthers. But I suggest they go South and have a look for themselves. The sun does exactly the same thing at Antarctica that it does in the Arctic.
During these longest days of the summer in Antarctica the whole of Antarctica is experiencing daylight 24 hours a day for a number of days. Again look at the Gleason flat earth map and see the sun rotating around the Tropic of Capricorn, they say 3000 miles up in the sky. It is impossible for the sun, situated on one side, to illuminate the entire area of Antarctica, the ring surrounding the flat earth.
This proves that the flat earth map, the Gleason projection, is completely incorrect. Antarctica does experience the “midnight sun” phenomenon and during these days the entire continent of Antarctica is illuminated by the sun 24 hours a day with no interruption.
So while this does not necessarily prove the earth is not flat, it does absolutely prove that the projection on the Gleason map, widely accepted by flat earthers as being correct, is totally incorrect and that Antarctica is not an island surrounding the entire flat earth.