>>11588106The earth is orbiting the sun at a certain speed. It is also rotating. If you draw a point on the earths surface and follow it on this diagram, when on the night side the point is moving at normal orbital speed as well as rotational speed at some % of rotational speed (100% when 90 degrees from the orbital path). Whereas on the day side it is slowed down by the rotational speed.
This means that at any time that speed is an absolute value somewhere between orbital+rotational and orbital-rotational.
Now my question is whether this change in speed is causing any mechanical effects on the planet. For example, as one point accelerates towards the peak of orbital+rotational, the point immediately behind it is still moving at a slower speed, meaning there might be some tension strain between those two points. Meanwhile, as a point is decelerating at a rate higher than the point in front of it, compression strain might occur.
This constant squeezing and stretching due to the inertia being affected by the constant accelerating and decelerating surely has some effect on the structure of the planet. Perhaps it deforms the entire planet slightly daily and thus imparts some movement into the liquid parts of the inner earth, maybe effecting the magnetic field generation somehow.