Nikola Tesla - Free-Energy Devices

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HIGH FREQUENCY AND HIGH POTENTIAL CURRENTS. 187ous by interposing an insulated metal plate. The magnitude ofthe effects depends to some extent on the size of the plate. But ifthe metal plate be connected'by a wire to the ground, its interpositionwill always make the tube go out even if it be very near thecoil. In general, the interposition of a body between the coil andtube, increases or diminishes the brilliancy of the tube, or itsfacility to light up, according to whether it increases or diminishesthe electrification. When experimenting with an insulatedplate, the plate should not be taken too large, else it will generallyproduce a weakening effect by reason of its great facility for givingoff energy to the surroundings.If a tube be lighted at some distance from the coil, and a plateof hard rubber or other insulating substance be interposed, thetube may be made to go out. The interposition of the dielectricin this case only slightly increases the inductive effect, but diminishesconsiderably the electrification through the air.In all cases, then, when we excite luminosity in exhaustedtubes by means of such a coil, the effect is due to the rapidlyalternating electrostatic potential ; and, furthermore, it must beattributed to the harmonic alternation produced directly by themachine, and not to any superimposed vibration which might bethought to exist. Such superimposed vibrations are impossiblewhen we work with an alternate current machine. If a spring begradually tightened and released, it does not perform independentvibrations ;for this a sudden release is necessary. So withthe alternate currents from a dynamo machine ;the medium isharmonically strained and released, this giving rise to only onekind of waves ;a sudden contact or break, or a sudden givingway of the dielectric, as in the disruptive discharge of a Leydenjar, are essential for the production of superimposed waves.In all the last described experiments, tubes devoid of any electrodesmay be used, and there is no difficulty in producing bytheir means sufficient light to read by. The light effect is,however,considerably increased by the use of phosphorescent bodiessuch as yttria, uranium glass,etc. A difficultywill be foundwhen the phosphorescent material is used, for with these powerfuleffects, it is carried gradually away, and it is preferable to usematerial in the form of a solid.Instead of depending on induction at a distance to light thetube, the same may be provided with an external and, if desired,also with an internal condenser coating, and it may then
188 INVENTIONS OF NIKOLA TESLA.be suspended anywhere in the room from a conductor connectedto one terminal of the coil, and in this manner a soft illuminationmay be provided.The ideal way of lighting a hall or room would, however, beFIG. 125.to produce such a condition in it that an illuminating devicecould be moved and put anywhere, and that it is lighted, no matterwhere it is put and without being electrically connected to
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THEINVENTIONSRESEARCHES AND WRITING
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THEINVENTIONSRESEARCHES AND WRITING
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PREFACE.rpHE electrical problems of
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CONTENTS.PART I,POLYPHASE CUERENTS.
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CONTENTS.ixCHAPTER XVIII.MOTOR BASE
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CONTENTS.xiCHAPTER XXXVI.THERMO-MAG
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CHAPTER I.BIOGRAPHICAL AND INTRODUC
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POLYPHASE CURRENTS. 5own inventions
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CHAPTER II.A NEW SYSTEM OFALTERNATI
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CHAPTEE III.THE TESLA KOTATING MAGN
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POLYPHASE CURRENTS. 11shifting of t
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POLYPHASE CURRENTS. 13atively weake
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POLYPHASE CURRENTS. 15a direction a
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I'OL YMIAKK 17These motors may be o
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POLYPHASE CURRENTS.litfield magnet,
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POLYPHASE CURRENTS. 21increasing th
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POLYPHASE CURRENTS. 23manner, or al
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POLYPHASE CURRENTS. 25secondary coi
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POLYPHASE CURRENTS. 27tion. Fig. 22
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POLYPHASE VURRKNT8. 25)two coils i
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CHAPTER V.UTILIZINGFAMILIAR TYPES O
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POLYPHASE CURRENTS. 33the collectin
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POLYPHASE CURRENT*. 33thereon, take
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POLYPHASE CURRENTS. 37revolution, t
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POLYPHASE CURRENTS. 39supplies the
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POLYPHASE CURRENTS. 41poles one-hal
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POLYPHASE CURRENTS. 43other ends ar
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CHAPTER VII.FOR RoTARY CURRENT MoTO
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POLYPHASE CURRENTS. 47If the regula
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POL7PHAHE CURRENTS. 49motor having
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POLYPHASE CURRENTS. 51In some insta
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POLYPHASE CURRENTS. 53described alr
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POLYPHASE CURRENTS. 55alternating-c
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POLYPHASE CURRENTS. 5?wires from a
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POLYPHASE CURRENTS.through this mot
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POLYPHASE CURRENTS 61two field coil
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POLYPHASE CURRENTS. 63motor has a s
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POLYPHASE CURRENTS. 65this speed is
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CHAPTER XII." MAGNETIC LAG " MOTOK.
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POLYPHASE CURRENT*. 69cured in posi
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CHAPTEE XIII.METHOD OF OBTAINING DI
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POLYPHASE CURRENTS. 73screened by t
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POLYPHASE CURRENTS. 75termined by v
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POLYPHASE CURRENTS. 77same. Fig. 64
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CHAPTER XV.MOTORS WITH CIRCUITS OF
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CHAPTER XVI.MOTOR WITH EQUAL MAGNET
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CHAPTER XVII.MOTORS WITH COINCIDING
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POLYPHASK CURRENTS. 85example, esta
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POLYPHASE CURRENTS 87the condition
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POLYPHASE CURRENTS. 89tor in which
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POLYPHASE CURRENTS. 91followed in s
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POL YPHAXE CURRENTS. 88consider the
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CHAPTER XX.COMBINATIONS OF SYNCHRON
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POLYPHASE CURRENTS.from the generat
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POLYPHASE CURRENTS.When thethrough
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CHAPTER XXLMOTOR WITH A CONDENSER I
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POLYPHASE VUKRENT8. 103ically varyi
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POLYPHASE CURRENTS. 105induction of
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POL YPHA&K d 107other forms of moto
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CHAPTER XXIII.TESLA POLYPHASE TRANS
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POLYPHASE CURRENTS.Illmanner illust
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CHAPTEK XXIV.A CONSTANT CURRENT TRA
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POLYPHASE CURRENTS. 115coil. Over t
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CHAPTER XXV.INTRODUCTION.THE SCOPE
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man FHKQUENVY AND HIGH POTENTIAL CV
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HIGH FREQUENCY AND HIGH POTENTIAL C
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HIGH FRJSQVKNCy AND HIGH POTENTIAL
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882 INVENTIONS OF NIKOLA TESLA.merg
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CHAPTER XXVIII.ON LIGHT AND OTHER H
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330 INVENTIONS OF NIKOLA TESLA.Inst
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332 INVENTIONS OF NIKOLA TESLA.coil
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334 INVENTIONS OF NIKOLA TE8LA.for
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844 INVENTIONS OF NIKOLA TESLA.comb
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CHAPTEK XXIX.TESLA ALTERNATING CURR
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:-MK)INVENTIONS OF NIKOLA TESLA.It
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CHAPTEK XXX.ALTERNATE CURRENT ELECT
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CHAPTER XXXI." MASSAGE " WITH CURRE
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CHAPTEE XXXII.ELECTRIC DISCHARGE IN
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398 .NVENTION8 OF NIKOLA TESLA.nati
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CHAPTER XXXIII.METHOD OF OBTAINING
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OBTAINING DIRECT FROM ALTERNATING C
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CONDENSERS WITH PLA TEN IN OIL. 419
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ELECTROLYTIC REGISTERING METER. 421
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ELECTROLYTIC REGISTERING METER. 423
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TlIK IIMO-MAGNETISM AND PYRO MAGNKT
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THERMO-MAGNETI8M AND PJEO-MAGNETI8M
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THEKMO-MAGNETISM AND PT110-MAGNETIS
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THKRMO-MA ONETISM AND P7RO-MA QNETI
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ANTLSPARKING BRUSHES AND COMMUTATOR
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ANTI-SPARKING BRUSHES AND COMMUTATO
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ANTI-SPARKINO BRUSHKS AND COMMUTATO
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A UXILIA R Y BR U8U REG ULA TION. 4
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A UXfLIARY BRUSH ItKG ULAT1ON. 441t
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A UXILIAR T Bit USE REG ULA TION. 4
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A UXILIARY BRUSH REG ULATWN. 44~>au
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A UXILTAR Y BR U8II RKO ULA TION. 4
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IMPROVEMENTS IN DYNAMOS AND MOTORS.
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CHAPTER XI,TKSLADIRECT CURRENT ARC
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DIRECT CURRKNT ARC LIGHTING SYSTEM.
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DIRECT CURRENT ARC LIGHTING SYSTEM.
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DIRECT CURRENT ARC LIGHTING 8YSTKM.
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DIRECT CUKRKNT ABC LIGHTING SYSTEM.
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DIRECT CURRKNT ARC LIGHTING SYSTEM.
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DIRECT CURRENT ARC LIGHTING SYXTKM.
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CHAPTER XLI.IMPROVEMENT IN "UNIPOLA
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UNIPOLAR GENERATORS. 467In order to
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UNIPOLAR GENERATORS. 469If the pole
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UNIPOLAR GENERATORS. 471disc.If the
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UNIPOLAR GENERATORS. 478indicated b
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PART IV.APPENDIX.-EARLY PHASE MOTOR
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478 INVENTION* OF NIKOLA 7/:s/..|.
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480 INVENTIONS OF NIKOLA TESLA.Anot
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482 INVENTIONS OF NIKOLA TESLA.stra
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484 INVENTIONS OF NIKOLA TESLA.deve
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CHAPTER XLIII.THE TESLA MECHANICAL
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488 INVENTIONS OF NIKOLA TESLA.prac
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490 INVENTIONS OF NIKOLA TE8LA.The
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492 INVENTIONS OF NIKOLA TE8LA.ends
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'INDEX.Alternate Current Electrosta
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'jINDEX.Ozone, Production of 171Phe
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