Stephen A. Lawrence wrote: [regarding NS-NS versus N/S S/N alignment preference:]
And we don't have any sufficiently whizzy bar magnets here to let me test it macroscopically.
More fool me. Bar magnets are the wrong shape, but we do have a set of magnetic marbles, and I already knew that they align nose to nose, not side to side.
Just didn't think through the implications. Sigh...
