What is Electricity?D. Appleton and Company, 1903 - 315 pagini |
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Pagina 3
... Positive Psychology . By TH RIBOT , author of " Heredity . " $ 1.50 . 42. ANTS , BEES , AND WASPS . A Record of Observations of the Habits of the Social Hymenoptera . By Sir JOHN LUBBOCK , Bart . , F. R. S. , etc. $ 2.00 . 43. THE ...
... Positive Psychology . By TH RIBOT , author of " Heredity . " $ 1.50 . 42. ANTS , BEES , AND WASPS . A Record of Observations of the Habits of the Social Hymenoptera . By Sir JOHN LUBBOCK , Bart . , F. R. S. , etc. $ 2.00 . 43. THE ...
Pagina 32
... positive state or render it plus . In this respect , therefore , magnetism differs from elec- tricity . " 4. A piece ... positively magnetized and the other negatively . This temporary magnetism ceases as soon as the iron is turned east ...
... positive state or render it plus . In this respect , therefore , magnetism differs from elec- tricity . " 4. A piece ... positively magnetized and the other negatively . This temporary magnetism ceases as soon as the iron is turned east ...
Pagina 45
... positively that the ancients knew noth- ing of electricity save what is manifested by the rub- bing of amber ; for modern excavations are continually increasing our knowledge of ancient life . Not the slightest evidence , however ...
... positively that the ancients knew noth- ing of electricity save what is manifested by the rub- bing of amber ; for modern excavations are continually increasing our knowledge of ancient life . Not the slightest evidence , however ...
Pagina 69
... positive pole and hydrogen at the negative . It can be said , in general , that an electrical current is generated whenever two dissimilar metals connected by a wire are immersed in a liquid which is capable of con- ducting electricity ...
... positive pole and hydrogen at the negative . It can be said , in general , that an electrical current is generated whenever two dissimilar metals connected by a wire are immersed in a liquid which is capable of con- ducting electricity ...
Pagina 70
... positive charge upon the silver spoon . By the use of a great number of zinc and copper plates separated by paper moistened with salt and water , Volta was able to show that a body charged with positive electricity was repelled by the ...
... positive charge upon the silver spoon . By the use of a great number of zinc and copper plates separated by paper moistened with salt and water , Volta was able to show that a body charged with positive electricity was repelled by the ...
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Termeni și expresii frecvente
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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Pagina 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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Pagina 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.