
Earth's Sphericity
Earth's sphericity refers to its shape, which is not a perfect sphere but an oblate spheroid. This means it is slightly flattened at the poles and bulging at the equator due to its rotation. While it may appear flat on a small scale, satellite images and the horizon's curve reveal its round shape. The planet’s sphericity affects gravity, climate, and how we navigate. Understanding this shape helps in various fields, from meteorology to satellite communications, and is fundamental to concepts like time zones and global positioning.