OK that's great, but how many are there? The FAQ has two completely contradictory maps - one has Antarctica on it* and thus might have a two-gear system with one over the South pole and one over the North pole, but what about the map where Antarctica is a ring around the planet?
if it is a two-gear system, that resolves questions 3 and 4, but where is the "seam"? If it's at the celestial equator, why don't we see constellations like Orion get pulled in half every night? The celestial equator goes right down the middle of Orion, so Betelgeuse should go north and Rigel should go south. instead it keeps its shape. how?
*this map, of course, raises more questions than it answers. if that map is indeed correct, then the sun's orbit could not be a circle; it would have to be an oddly-shaped figure-8 that switches from clockwise to counterclockwise every March. (and vice versa in September). also what's up with New Zealand? if it's below Antarctica, wouldn't it be much colder there?