To understand why we don’t feel Earth's rotation, it’s essential to grasp the concept of inertia and the force of gravity.Firstly, Earth’s rotation is incredibly consistent. Once a body in motion is ...

Earth Orientation Parameters (EOP): Quantitative measures that describe the rotation of the Earth, including polar motion, LOD variations, and celestial pole offsets.

Polar Motion: The apparent displacement of the Earth's rotation axis relative to its solid surface, primarily driven by the redistribution of mass across the planet.

It boils down to two things: our solar system is flat, and motion is relative. Let’s tackle the “relative motion” part first. Consider our own familiar Earth, for example.