. The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting . % mo Fi(.. ber and waving the tube about we ])roduce all kinds (»f designsin luminous lines. So by way of amusement I take a straightlong tube, or a s(piare one, or a square attached to a straight tube,and by whirling thcni about in the hand, I imitate the s])okes ofa wheel, a (iramme winding, a drum winding, an Mltcrnati cur-rent motor winding, etc. (Fig. 108). Viewed friii a distance tlieeffect is weak and much of its beauty is lost, but biin
. The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting . % mo Fi(.. ber and waving the tube about we ])roduce all kinds (»f designsin luminous lines. So by way of amusement I take a straightlong tube, or a s(piare one, or a square attached to a straight tube,and by whirling thcni about in the hand, I imitate the s])okes ofa wheel, a (iramme winding, a drum winding, an Mltcrnati cur-rent motor winding, etc. (Fig. 108). Viewed friii a distance tlieeffect is weak and much of its beauty is lost, but biing near rliolding the tube in the hand, one cannot resist it> diarni. UIGII FREQUENCY AND UIGH POTENTIAL CURRENTS. 373 111 presenting these insignificant results I have not attemptedto arrange and co-ordinate them, as would be proper in a strictlyscientific investigation, in which every succeeding result shouldbe a logical sequence of the preceding, so that it might be guessedin advance by the careful reader or attentive listener. I havepreferred to concentrate mv energies chiefly uj)on advancingnovel facts or ideas whic
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