What is Electricity?D. Appleton and Company, 1903 - 315 страници |
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Страница 18
... medium by means of which the waves of light , heat , and electricity are conveyed to us from the sun . If we could also show that the force of gravitation results from the different rates of flow of this medium through the particles or ...
... medium by means of which the waves of light , heat , and electricity are conveyed to us from the sun . If we could also show that the force of gravitation results from the different rates of flow of this medium through the particles or ...
Страница 19
John Trowbridge. tempt to show that the differential flow of a medium like the ether through empty space and through space filled with material particles is one of great difficulty from both the experimental and mathematical point of ...
John Trowbridge. tempt to show that the differential flow of a medium like the ether through empty space and through space filled with material particles is one of great difficulty from both the experimental and mathematical point of ...
Страница 20
... medium and oppose the motion of the plants . The energy of the corpuscles would be enormous . rate at which it must be spent in order to maintain the gravitating property of a single pound is at least millions of millions of foot pounds ...
... medium and oppose the motion of the plants . The energy of the corpuscles would be enormous . rate at which it must be spent in order to maintain the gravitating property of a single pound is at least millions of millions of foot pounds ...
Страница 32
... the action of magnetism on light ; then we perceive that there are not only attractive forces between molecules of the iron , but also rotary motions in the medium within and around the magnet , and in order 32 WHAT IS ELECTRICITY ?
... the action of magnetism on light ; then we perceive that there are not only attractive forces between molecules of the iron , but also rotary motions in the medium within and around the magnet , and in order 32 WHAT IS ELECTRICITY ?
Страница 33
John Trowbridge. medium within and around the magnet , and in order to comprehend the phenomenon of magnetism we are com- pelled to assume a medium between the molecules and to attribute rotary or vortex movements to it . We shall return ...
John Trowbridge. medium within and around the magnet , and in order to comprehend the phenomenon of magnetism we are com- pelled to assume a medium between the molecules and to attribute rotary or vortex movements to it . We shall return ...
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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 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.