(Quote) Figure 1: In the inertial frame of reference (upper part of the picture), the black object moves in a straight line. However, the observer (red dot) who is standing in the rotating frame of reference (lower part of the picture) sees the object as following a curved path.

We all are on earth that can be a rotating frame. Nothing is straight to us. Only a dead who is outside of this frame, can have a straight vision..

Has anyone noticed that flushing water rotates oppositely in Australia? I raised this question years ago.