Nikola Tesla - Free-Energy Devices

6 INVENTIONS OF NIKOLA TESLA.was rewarded very quicklyin this field with results of the mostsurprisingnature. A slight acquaintance with some of theseexperiments led the compiler of this volume to urge Mr. Teslato repeat them before the American Institute of Electrical Engineers.This was done in May, 1891, in a lecture that marked,beyond question, a distinct departure in electrical theory andpractice, and all the results of which have not yet made themselvesfully apparent. The New York lecture, and its successors,two in number, are also included in this volume, with afew supplementary notes.Mr. Tesla's work ranges far beyond the vast departments ofpolyphase currents and high potential lighting.The " Miscellaneous" section of this volume includes a great many other inventionsinarc lighting, transformers, pyro-magnetic generators,thermo-magnetic motors, third-brush regulation, improvementsin dynamos, new forms of incandescent lamps, electrical meters,condensers, unipolar dynamos, the conversion of alternating intodirect currents, etc. It is needless to say that at this momentMr. Tesla isengaged on a number of interesting ideas and inventions,to be made public in due course. The present volumedeals simply with his work accomplished to date.