What is Electricity?D. Appleton & Company, 1896 - 315 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 62
Pagina 6
... experiments may be said to have given one of the primal impulses . The lecturer and student to - day , however , is compelled to approach the subject of light and heat through the broadest study of electromag- netism . Tyndall , I have ...
... experiments may be said to have given one of the primal impulses . The lecturer and student to - day , however , is compelled to approach the subject of light and heat through the broadest study of electromag- netism . Tyndall , I have ...
Pagina 7
... experiments on the equivalence be- tween the heat produced by the current and the work done by the steam engine which produces the current . The doctrine of the conservation of energy is little more than a hundred years old . Count ...
... experiments on the equivalence be- tween the heat produced by the current and the work done by the steam engine which produces the current . The doctrine of the conservation of energy is little more than a hundred years old . Count ...
Pagina 9
... detailing his experiments on magnetic induction : " The various ex- periments of this section prove , I think , most completely the production of electricity from ordinary magnetism . That its THE STANDPOINT OF PHYSICISTS . 9.
... detailing his experiments on magnetic induction : " The various ex- periments of this section prove , I think , most completely the production of electricity from ordinary magnetism . That its THE STANDPOINT OF PHYSICISTS . 9.
Pagina 15
... experiments , taking 4 millimetres as the distance between the threads and supposing the bracket to be 600 millimetres below the knife edge of the balance , the mirror turns through an angle 150 times as great as that through which the ...
... experiments , taking 4 millimetres as the distance between the threads and supposing the bracket to be 600 millimetres below the knife edge of the balance , the mirror turns through an angle 150 times as great as that through which the ...
Pagina 19
... experimental and mathematical point of view . We have never detected any effect of the ether upon the motion of bodies , and experiments upon the attraction of masses suspended in a moving fluid like water are inconclusive , since water ...
... experimental and mathematical point of view . We have never detected any effect of the ether upon the motion of bodies , and experiments upon the attraction of masses suspended in a moving fluid like water are inconclusive , since water ...
Alte ediții - Afișează-le pe toate
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
Pasaje populare
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.