Summary:
- The Earth appears flat to our eyes due to the planet's large size compared to our relatively small size as humans.
- The curvature of the Earth is only noticeable over large distances, such as when looking at the horizon or when viewing the Earth from space.
- The fact that the Earth is round can be demonstrated through various scientific observations and experiments, such as the way ships disappear over the horizon and the different constellations visible from different latitudes.