    Sentence 1: What happened to ‘the  dynamos in the power station?    Sentence 2: In August 1917, Tesla  explained .what had happened in. The  Electrical. Experimenter: "As-» an  example of what has been done with  several. hundred kilowatts of high  frequency energy liberated, it . was  found that the dynamos in a power  house six miles away were repeatedly  burned out, due tothe powerful: high  frequency currents set-up in them, and  which. caused heavy sparks to. jump