Because the Earth is very large.
If the Earth were flat, we would expect a curvature rate of zero inches per mile. As it is, the Earth is not flat, and it's curvature rate is 8 inches per mile.
63,360 inches are in a mile, and the 8 inch drop is spread over that distance. Our eyes are not able to detect an approximately 1/10,000th of an inch drop off per inch.
In simple terms, the curvature is so gradual that we can't see it!
Aristotle observed that during a lunar eclipse, the shadow of the Earth on the moon was round. He also noted that ships disappear hull first when sailing away and that the stars appear at different angles depending on the observer's location. These observations led him to believe that the Earth was a sphere, not a flat disk.
The earth's gravity field makes everything push into the earth like a bubble arround the planet. This makes it seem like the earth is flat.
that the earth was not flat nor square but it was round
An oblate spheroid.
Flat maps that represent a portion of the round earth are called "world maps". These maps use projections to show the Earth's curved surface on a flat surface, with distortions in size, shape, distance, or direction. Popular world maps include the Mercator projection, the Peters projection, and the Winkel Tripel projection.
Since the determination of the fact that Earth is spherical as opposed to flat, all scientists (after a short lag period) have accepted that it is so.
Not sure what you mean... They are horizontal, not vertical, meaning they lie flat on the Earth.
round
No, Athena is not a flat character. She actually is a round character.
The Earth was never flat. The Flat Earth society believe they have proof that the Earth is flat but other no individuals or organisations have ever seriously considered that the Earth was not round since the ancient Greeks.
Round is an infinitely more efficient design to accommodate the rotations, orbits and movements of the planets and galaxies. Can't imagine a "flat-disk" planet-design doing (or trying to do) what the round, circular design does.
Yes, it is. Satellite imaging will negate the hypothesis and prove that Earth is round, not flat.
Lol Nothen
guff
on a flat map
The earth is round, due to gravity, so there are no flat bits at the top and bottom.
The earth is not round... it is flat!!! Gravity keeps on the earth and that is how we stay on earth, because if we didn't have gravity we would float into space and DIE!!!