The inventions, researches and writings of Nikola Tesla : with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas C, Tesla, Nikola · The Electrical Engineer · leaf 227
e eacli phenomenon at its best , a very careful adjust ment is required . But even if imperfectly produced , as they are likely to be this evening , they are sufficiently striking to interest an intelligent audience . Before showing some of these curious effects I must , for the sake of… … Fi < ( . 132 . wood , covered on the outside with a zinc sheet z , which is carefully soldered all around . It might be advisable , in a strictly scientific investigation , when accuracy is of great importance , to do away with the metal cover , as it might introduce many errors , princi pally on…
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