Off-topic circumnavigating the earth in a mile or less [was Re: Significant digits in a float?]

[Chris Angelico]

On Thu, May 1, 2014 at 9:46 AM, Ian Kelly <ian.g.kelly at gmail.com> wrote:
> It also works if your starting point is (precisely) the north pole.  I
> believe that's the canonical answer to the riddle, since there are no
> bears in Antarctica.

Yeah but that's way too obvious! Anyway, it's rather hard to navigate
due south from the north pole. Which way do you go? How do you know
you're still going due south? Will the rocket even light in that
climate?

Important questions must be answered!

ChrisA