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Show oo AURORA BUREAUS IS SEEN AT EARLY HOUR Today, and late yesterday, Associated Associat-ed Press wire in Ogden were disturbed by earth currents and for a time the service was interrupted. Last night the aurora borealis was seen in the northern sky, deep colors Of purple and pink fading away to light j purple. I The earth currents today Indicate that the northern lights again will be seen tonight. An authority says the phenomenon of the aurora borealis is caused by the magnetic field of the earth, and is Intimately In-timately connected with the action of the sun. At present spots are eroding erod-ing tbe sun, and these, combined with the influence of the earth's magnetic ; field, are causing the lights in the-i the-i northern heavens. The sun spots have J a nucleus which is about 30.000 miles I across, and the spots as they appear 'when crossing the sun vary in diam-ieter diam-ieter from 60,000 to 63,000 miles The earth's magnetic field is created b a process similar to the brush of the dynamo, dy-namo, except that the discharge is magnetic instead of electric |