Care to draw that for us razor . I,m having trouble understanding the concept. You know you leave north with you compass pointing north,head south & end up at north. Your compass would be pointed north the whole time. So please explain how you derived your at the South Pole ?
Are you proposing a compass that senses true north, or a magnetic compass, charles?
If it's an ideal true-north-sensing compass and you traveled due south from the north pole, you'd know you got to the south pole when it suddenly changed directions 180° as you walked straight ahead[nb]An ideal geographic compass could do that. As Aliveandkicking noted, expect a real one to get unstable near the poles, and not "flip" all at once.[/nb]. If you followed the compass north (i.e. kept moving in the same direction after the compass needle reversed), you'd end up back at the north pole and would recognize it when your compass suddenly reversed directions again.
If you're using nothing but a magnetic compass, even an ideal one, to find the south geographic pole, it won't work. An ideal magnetic compass could find the south magnetic pole, though, but that's a different place than the south geographic pole.
Is that what you were asking? Does that answer your question?
Reversed ? Why would it need to reverse, when its pointing north the whole time . Is there more then one northpole ?
Nope. It's because all directions from the South Pole are north. What other direction could they be? More souther? If you're one meter from the South Pole and walking south, south is in front of you. If you continue straight for two meters further, you've walked one meter past the South Pole, and south is now behind you. Right? Since south is behind you, you're now walking north even though you simply walked in a straight line, right? If your ideal geographic compass is accurately reading direction to the north pole, it changes direction the moment you crossed the pole.
Your longitude also jumped by 180° the moment you crossed the pole. All the longitudes converge at the pole, and longitude has no meaning at that point.
It's quite simple and can usually be easily understood by kids in grade school. Is it really this hard for you, or are you pretending to be stupid? If the latter, why? If you're trying to make flat-earth believers look dumb, they don't need any help with that.
<blah, blah, blah blah blah>
Well demonstrate it . Shouldn't be to hard for you to Show us where we can find footage of this compass doing a 180 shift , after crossing this apparent pole you tell us exsist at this location . Understood ? No told they must believe in the crap their being told.
I described what an ideal compass would show. Unfortunately, I doubt you'll be able to buy one of those off the shelf, but if you can, then you should do the experiment for yourself. Arrange for transport to the vicinity of the South Pole, and follow it south until it flips direction, then look around. Is there a research station there with a "South Pole" monument nearby?[nb]The ice moves slowly, so they hold a ceremony to re-establish the monument yearly.[/nb] If so, it's working correctly, and you'll be a hero, since you'll have a working instrument that no one believed could exist! Just in case, you'd best take a good GPS receiver or two (or three, and don't forget extra batteries) with you so you can find your way back to the drop point or some prearranged point for pick-up (whether you believe in them or not, they do work quite well). You really don't want to get lost on the Antarctic plateau with a non-working but otherwise ideal geographic compass and nothing else; the weather outside is frightful, and it's
all outside. If I could show you a video, you'd just claim it's faked, anyway, so it's best you do this yourself if you can.
Short of that, what is it about the description that you don't understand? Why the north pole would be closer in the opposite direction once you crossed the antipodal point from the North Pole? This seems self-evident once you think even just a little (go ahead... give it a try; don't be scared, many before you have survived), and even grade-school children of average intelligence easily grasp this. Even without seeing an ideal compass up close and personal.
What do you think such an instrument would do as you crossed the North Pole? Would it show "even more norther than north" continuing in the direction you approached from? What if you approached from a different direction? Would that direction be "even more norther than north", too, or would the old "even more norther than north" continue to be "even more norther than north"? Or would it show the direction toward the North Pole changing as you passed the North Pole? That seems more likely, doesn't it?
Maybe this is all just too difficult for you. I hope not.