Here are some arguments from Aristotle that proove the spherical earth theory:
1)Every portion of the earth tends toward the center until by compression and convergence they form a sphere
Assuming there's gravity...
2)Travelers going south see southern constellations rise higher above the horizon
There's different constellations in view in the southern hemisphere.
3)The shadow of Earth on the Moon during a lunar eclipse is round
How do you explain that?
It's not the Earth's shadow. I also disagree with the "Shadow Object"--I'm pretty sure Tom Bishop is the only moron to support that idea--but it could easily be other interferences between the Earth and the moon. It's not like it happens often, anyways.
~D-Draw