What is Electricity?D. Appleton & Company, 1896 - 315 pagini |
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Pagina
... exciting oscillatory discharges ; S , in a neighbouring conductor . S ' , exciting oscillatory movements ; S " , in a neighbouring conductor . WHAT IS ELECTRICITY ? BY JOHN TROWBRIDGE , S. D..
... exciting oscillatory discharges ; S , in a neighbouring conductor . S ' , exciting oscillatory movements ; S " , in a neighbouring conductor . WHAT IS ELECTRICITY ? BY JOHN TROWBRIDGE , S. D..
Pagina 26
... excited tube be applied , light bodies will be attracted , and that at the distance of 1,200 feet at the other end . This electricity since the year 1743 has made a consid- erable noise in the world , upon which it is supposed several ...
... excited tube be applied , light bodies will be attracted , and that at the distance of 1,200 feet at the other end . This electricity since the year 1743 has made a consid- erable noise in the world , upon which it is supposed several ...
Pagina 68
... excited in the circuit of the metals and the muscles and nerves of the frog . A new instrument in physical science often opens a great field of discovery . The frog's legs in the hands of Galvani and his co - workers proved to be such ...
... excited in the circuit of the metals and the muscles and nerves of the frog . A new instrument in physical science often opens a great field of discovery . The frog's legs in the hands of Galvani and his co - workers proved to be such ...
Pagina 102
... excited in a coil of wire passing rapidly near the poles of a magnet ; that a current is excited in the coil in one direction by movement near a south pole , and in the opposite direction by movement near a north pole ; and that a ...
... excited in a coil of wire passing rapidly near the poles of a magnet ; that a current is excited in the coil in one direction by movement near a south pole , and in the opposite direction by movement near a north pole ; and that a ...
Pagina 113
... excited , it has gradually come into commercial use in steadying the load at central power and light stations . In case of an accident to the machinery the current from a storage battery can be turned on the line . It acts like a spare ...
... excited , it has gradually come into commercial use in steadying the load at central power and light stations . In case of an accident to the machinery the current from a storage battery can be turned on the line . It acts like a spare ...
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Termeni și expresii frecvente
action alternating current apparatus attraction body 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 flow 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 tricity tube velocity vibrations voltaic cell zinc
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Pagina 314 - SOUND : a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the use of Students of every age.
Pagina 296 - ... of our planet, so far as we know it; and nitrogen is very far the predominant constituent of our atmosphere. If the earth is a detached bit whirled off the mass of the sun, as cosmogonists love to tell us, how comes it that in leaving the sun we cleaned him out so completely of his nitrogen and oxygen that not a trace of these gases remains behind to be discovered even by the sensitive vision of the spectroscope...
Pagina 256 - 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...
Pagina 313 - Part I. MECHANICS, HYDROSTATICS, and PNEUMATICS. Part II. HEAT. Part III. ELECTRICITY and MAGNETISM. Part IV.
Pagina 118 - Faraday, in his mind's eye, saw lines of force traversing all space where the mathematicians saw centres of force attracting at a distance : Faraday saw a medium where they saw nothing but distance : Faraday sought the seat of the phenomena in real actions going on in the medium, they were satisfied that they had found it in a power of action at a distance impressed on the electric fluids.