You obviously don't understand the geometry of the flat Earth. It's still round, just not spherical. If you go high enough, you are going to see curvature.
No. I obviously don't understand the geometry of the flat Earth. Do you mean:
a) that the north pole part is at a higher altitude than the ice-wall part? (which is a little ridiculous becuase then all the water would have run down to the ice-wall)
OR
b) that the Earth is like one huge petri dish, round in the sense that it is a circle.
If you mean b), which I assume you do becuase a) is rather stupid, then I have a little problem.
The same point at which the rounded shape became apparent would be the same time you could see the edge, and hence the ice-wall, and hence all the continents squashed onto a huge disk. When we are in a plane, we most certainly cannot see this.
So no...if you are in a plane there is no way FE can show that the earth is rounded, for either a) or b).
According to Tom, Snell's law can account for it, but...then again it doesn't really account for anything. People have all ready posted why that's silly I'm not going to repeat it.