What is Electricity?D. Appleton & Company, 1896 - 315 pagini |
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... BODY : The Theories of their Relation . By ALEXANDER BAIN , LL . D. With 4 Illustrations . $ 1.50 . 5. THE STUDY OF SOCIOLOGY . By HERBERT SPENCER . $ 1.50 . 6. THE NEW CHEMISTRY . By Professor J. P. COOKE , Harvard University . With 31 ...
... BODY : The Theories of their Relation . By ALEXANDER BAIN , LL . D. With 4 Illustrations . $ 1.50 . 5. THE STUDY OF SOCIOLOGY . By HERBERT SPENCER . $ 1.50 . 6. THE NEW CHEMISTRY . By Professor J. P. COOKE , Harvard University . With 31 ...
Pagina 3
... hypotheses in suspense which is characteristic of the best minds in science of to - day , and indeed the task set for the physicists is not fully comprehended . They are a small body of men 2 THE STANDPOINT OF PHYSICISTS . 3.
... hypotheses in suspense which is characteristic of the best minds in science of to - day , and indeed the task set for the physicists is not fully comprehended . They are a small body of men 2 THE STANDPOINT OF PHYSICISTS . 3.
Pagina 4
John Trowbridge. fully comprehended . They are a small body of men to whom the world looks especially for exact information . By means of patient measurement in the great field of the transformations of energy they have been able to ...
John Trowbridge. fully comprehended . They are a small body of men to whom the world looks especially for exact information . By means of patient measurement in the great field of the transformations of energy they have been able to ...
Pagina 7
... body to diminish the effort of the human organism to supply heat , or to supplement this effort in very young children or in very old people , is now clearly understood . The death of very old persons at night is often due to the want ...
... body to diminish the effort of the human organism to supply heat , or to supplement this effort in very young children or in very old people , is now clearly understood . The death of very old persons at night is often due to the want ...
Pagina 8
... body is a far more difficult one than the study of the duty of an ordinary steam engine , for the trans- formations are more numerous and subtle . In the main , however , there is a close relation between the amount of food consumed and ...
... body is a far more difficult one than the study of the duty of an ordinary steam engine , for the trans- formations are more numerous and subtle . In the main , however , there is a close relation between the amount of food consumed and ...
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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.