After further reflection, we noticed that our major issue would probably be the rotation, we are delaying the building part of our project because we're trying to anticipate on other issues. We've had new ideas like making the globe spin horizontally which would remove the risk of the globe falling if it is held from the top, plus who said that the North was up and  not on the side. Another idea was given by one of our supervisors, advising us to use a wheel brushing the side of the globe to make it spin and a potentiometer to track the position. Correcting positional error caused by the wheel wouldn't be a huge issue.