Final answer:
Dizziness from spinning around a pole is due to centrifugal force in a rotating reference frame, whereas we don't feel Earth's rotation because it is uniform and gravity holds us down. The Foucault Pendulum experiment demonstrates Earth's rotation, and consistent motion allows for a sensation-free experience.
Step-by-step explanation:
The sensation of dizziness when we spin around a pole can be explained using physics. This occurs because of the centrifugal force created in a non-inertial reference frame, which is experienced as a force trying to 'throw' us outwards from the center of rotation. We hang on to resist this force. On the other hand, the Earth is also spinning on its axis and orbiting the sun, but these motions are at such consistent and gradual rates that the effects of acceleration are not felt on a daily basis. Moreover, due to Earth's immense size and the fact that gravity holds us firmly on its surface, we do not perceive its rotation directly.
The Earth's rotation is demonstrated scientifically by experiments such as Foucault's Pendulum, which shows the Earth turning beneath a freely swinging pendulum. As for the Earth's movement around the sun, we, like passengers in a vehicle, might not feel the movement if the ride is smooth without abrupt changes in speed or direction. Therefore, the consistency and uniformity of Earth's motion allows life to adapt to such conditions without experiencing a sensation of continuous movement.