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Tesla on the DC motor In a paper presented before the American Institute of Electrical Engineers in 1888 Tesla criticized the illogical construction of the DC motor In our dynamo machines it is well known we generate alternate currents which we direct by means of a commutator a complicated device and it may be justly said the source of most of the troubles experienced in the operation of the machines Now the currents so directed cannot be utilized in the motor but must - again by means of a similar unreliable device - be reconverted into their original state of alternate currents The function of the commutator is entirely external and in no way does it affect the internal workings of the machines In reality therefore all machines are alternate current machines the currents appearing as continuous only in the external circuit during the transfer from generator to motor In view simply of this fact alternate currents would commend themselves as a more direct application of electrical energy and the employment of continuous currents would only be justified if we had dynamos which would primarily generate and motors which would be directly actuated by such currents Adopted from TC Martin The Inventions Researches and Writings of Nikola Tesla New Work Electrical Engineer 1894 pp 9-11 Tesla on War and Peace War cannot be avoided until the physical cause for its recurrence is removed and this in the last analysis is the vast extent of the planet on which we live Only through annihilation of distance in every respect as the conveyance of intelligence transport of passengers and supplies and transmission of energy will conditions be brought about some day insuring permanency of friendly relations What we now want is closer contact and better understanding between individuals and communities all over the earth and the elimination of egoism and pride which is always prone to plunge the world into primeval
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