together, and secured to current is increased to about two amperes, the iron soil when an obstruction to their advance is met. In the hub with the minor axis of one lying at right arc emits a whistling sound, and the spot at the anode case an obstacle is encountered by one of the wheels, angles to… … it soon became evident that the capacity and self- than cut it. There is no danger of forming ruts, be- MODEL OF THE WHEEL WITH SINUSOIDAL TBEADS. cause the track zigzags back and forth across the induction of the bolometer circuit tended to set up Each wheel ia virtually a double wheel, consisting…
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