If this is true, then why do all the navigation formulates are based on the premise of a round earth work? Also, why is it that sailors who are sailing south always lose sight of the North Star when they reach the equator. Further why do people always lose sight of a ship’s mast when the ship reaches the point where it dips below the horizon, something that’s only possible with a round earth.
Or maybe people’s eyesight is just poor... /JK
As a tangent (?) to that thought, couldn’t he just go out onto a flat calm sea and ‘prove’ how flat the earth is, right there? Seems to me, if he wants to prove flatness, leaving the face of the Earth would not be the way to prove it; in other words, the higher he goes, the rounder it gets.
Because by the time they get to the equator, it's noon..........