QUESTION 1 Earth's atmosphere is a forced vortex? I guess yes, because an airplane moving to the west does not confront different air resistance than one moving to the east. Correct me if wrong, because I have some doubts: Up to what height? Even the exosphere? QUESTION 2 Suppose you create a forced vortex in a closed box-cylinder full of air or full of liquid. Also, there is no extrernal gravity acting on this box (i.e. the box is not pulled towards the ground). Where will the more dense (than the rest of the air or liquid) bodies go? Towards the centre of the vortex? Outwards? Remain at the same distance from the centre of the vortex?