Wright, Mark R., 1854- · London : Longmans · leaf 158
Terrestrial Magnetism 149 … ISO Magnetism coincide with the axis of the earth, but makes an angle with it;we must call the end near the north pole a S-seeking pole, see-ing that it attracts the N-seeking pole of a needle. In fig. 143E Q represents the geographical equator, and e q roughly theposition of the magnetic equator.…
Physics
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