. The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting . )per ribbon on the inside. This was the first disruptivedischarge coil constructed by him. At r is shown tlie disruptive. Fio. 811. discliargc coil c\hil)itcd by him in lii> Uctnrc before the Ameri-can Institute of Electrical Engineers, in May, isjtl. At v and ware shown some of the first high fi-eijuencv transformers. Anund>er of various fields and arnuitures of small models of highfrequency apparatus as shown at x and v, and others not visibl
. The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting . )per ribbon on the inside. This was the first disruptivedischarge coil constructed by him. At r is shown tlie disruptive. Fio. 811. discliargc coil c\hil)itcd by him in lii> Uctnrc before the Ameri-can Institute of Electrical Engineers, in May, isjtl. At v and ware shown some of the first high fi-eijuencv transformers. Anund>er of various fields and arnuitures of small models of highfrequency apparatus as shown at x and v, and others not visiblein the ])ictnre, were exhibited. In the annexed space the dynanu)then used by Mr. Tesla at (Columbia College was exhibited ; alsoanother form of high frequency dynamo used. In this space also was arranged a battery of Leyden jars andhis large disruptive discharge coil which was used for exhibiting 1. 8ce Part II. Chap. page 145. PERSONAL EXHIBIT AT THE WORLDS FAIR. 485 the liglit plienomeiia in the adjoining dark room. The coil wasoperated at only a small fraction of its capacity, as the necessarycondensers and transformers could not he had and as Mr. Teslasstay was limited to one week; notwithstanding, the phenomenawere of a striking character. In tl
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