What is Electricity?D. Appleton and Company, 1903 - 315 страници |
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... METALS . By Professor N. JOLY , Science Faculty of Tou- louse . With 148 Illustrations . $ 1.75 . 46. THE ORGANS OF SPEECH AND THEIR APPLICATION IN THE FORMATION OF ARTICULATE SOUNDS . By Professor G. H. VON MEYER , University of Zürich ...
... METALS . By Professor N. JOLY , Science Faculty of Tou- louse . With 148 Illustrations . $ 1.75 . 46. THE ORGANS OF SPEECH AND THEIR APPLICATION IN THE FORMATION OF ARTICULATE SOUNDS . By Professor G. H. VON MEYER , University of Zürich ...
Страница 11
... metals retaining all their conducting power . " The steam engine has exalted this apparently feeble effect discovered by Faraday into a power which is only limited by that of the steam engine or the water power which we employ . CHAPTER ...
... metals retaining all their conducting power . " The steam engine has exalted this apparently feeble effect discovered by Faraday into a power which is only limited by that of the steam engine or the water power which we employ . CHAPTER ...
Страница 28
... metals rubbed against each other . I have just finished a calculation by which it appears that the heat generated equably , or the stream of heat which flowed with a uni- form velocity - if I may so express myself - was , in one of my ...
... metals rubbed against each other . I have just finished a calculation by which it appears that the heat generated equably , or the stream of heat which flowed with a uni- form velocity - if I may so express myself - was , in one of my ...
Страница 53
... metals . The resistance of iron is at least six times that of cop- per . A very slight impurity in copper wire exerts a marked increase of resistance . The use of a 98 - per - cent copper wire in the place of a 97 - per - cent copper ...
... metals . The resistance of iron is at least six times that of cop- per . A very slight impurity in copper wire exerts a marked increase of resistance . The use of a 98 - per - cent copper wire in the place of a 97 - per - cent copper ...
Страница 58
... metal , for instance - several feet in diameter , and run an elec- tric current to what may be called the north pole of such a globe and lead it away from the south pole , we shall find that the current apparently spreads out from the ...
... metal , for instance - several feet in diameter , and run an elec- tric current to what may be called the north pole of such a globe and lead it away from the south pole , we shall find that the current apparently spreads out from the ...
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action alternating current apparatus attraction bodies carbon cathode rays centimetres charged circuit coil of wire conductor connected copper copper wire Crookes tube current of electricity detect direction discharge distance dynamo dynamo machine earth effect elec electric current electric spark electric waves electrical energy electrical machine electro-magnetic electro-magnetic waves electro-motive force employed ether excited experiments Faraday fluid galvanometer glass gravitation horse power Illustrations inch insulated iron J. J. Thomson lamp Leyden jar lines of force lines of magnetic magnetic force manifestations means measure medium metals method mirror molecular molecules motor movement needle obtained ordinary oscillations oxygen pass phenomena phenomenon photograph pipes placed plate polarization pressure produced Prof refraction resistance revolving Ruhmkorff coil self-induction south pole space spark gap spool steam engine storage battery suitable telephone terminals theory tion to-and-fro currents transformations of energy transmitted tric tricity tube velocity vibrations voltaic cell zinc
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Страница 262 - In extending the researches relative to this part of the investigations, a remarkable result was obtained in regard to the distance at which inductive effects are produced by a very small quantity of electricity; a single spark from the prime conductor of the machine, of about an inch long, thrown on the end of a circuit of wire in an upper room, produced an induction sufficiently powerful to magnetize needles in a parallel circuit of wire...
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Страница 199 - Electrical matter differs from common matter in this, that the parts of the latter mutually attract, those of the former mutually repel each other.