NORTH OR NEGATIVE POLE... SOUTH OR POSITIVE POLE

The line running from the poles is the harmonic diagonal of the earth in this case, or the brain in another case. Actually the arrows should have been reversed as there is more electron loss at the negative end of a dipole. This also shows how the brain might function as two opposing halves, one the reverse of the other. At the mid-point we might find one scale ascending the other descending, the overtone and undertone. The arrangement of musical gears is using those ratios used in music to determine the size of the gear and the number of notches.