What If the Earth Was Flat?

As explained above, the sun’s rays reach the planet and strike it at different angles, depending on the tilt of the Earth. For this reason, when the rays fall on an object or a person, shadows are generated that have a different length depending on where in the world they are located. On a flat planet, sunlight would bathe the entire surface at the same angle, so the shadows would measure exactly the same in both China and Mexico, for example.