DaveH
Striker
Get 5 groups of people to stand at night in the southern hemisphere, all 5 degrees apart, all looking due south and see if they can all see the southern cross dead ahead (and up). If flat/dome then the answer is no the image will be 25 degrees different for the group at one edge than the other.Should do an experiment with groups who walk north as far as they can and groups who walk south. All the people who walk north no matter where they started would hit the area of too cold for man or machine and become frozen if they didn't stop in the flat earth model. Then a bunch aim south (I mean opposite of north), they should send up at all different parts on the outer rim of the disc.
If the earth is a beach ball both groups will be able to keep going past their north and opposite north directions and meet up.
If a globe, then they should all see the southern cross ahead, but rotated 25 degrees from one side to the other.
Guess what happens in reality?