What is Electricity?D. Appleton and Company, 1903 - 315 pagini |
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Pagina 11
... means of patient measurement in the great field of the transformations of energy they have been able to supply the world with the most exact , if not perfectly exact , information which it now possesses . Since the subject of this ...
... means of patient measurement in the great field of the transformations of energy they have been able to supply the world with the most exact , if not perfectly exact , information which it now possesses . Since the subject of this ...
Pagina 11
... means for richly illus- trating it . The claims of the great founders of this hypothesis have been set forth by Tyndall in his treatise , and by Tait in his Recent Advances in Physical Science . My object in this treatise is to call ...
... means for richly illus- trating it . The claims of the great founders of this hypothesis have been set forth by Tyndall in his treatise , and by Tait in his Recent Advances in Physical Science . My object in this treatise is to call ...
Pagina 11
... means of this great invention of Watt we obtain our electrical currents ; and when it is said that electricity will some day supersede steam , we can assert with a similar show of reason that flying may some day take the place of ...
... means of this great invention of Watt we obtain our electrical currents ; and when it is said that electricity will some day supersede steam , we can assert with a similar show of reason that flying may some day take the place of ...
Pagina 11
... means of which Faraday and Joseph Henry detected the small indications of a force which the steam engine has exalted into a mighty one , we are reminded of the slight rub which Aladdin gave to the lamp which was sufficient to summon a ...
... means of which Faraday and Joseph Henry detected the small indications of a force which the steam engine has exalted into a mighty one , we are reminded of the slight rub which Aladdin gave to the lamp which was sufficient to summon a ...
Pagina 12
... means of the mechanical equivalent of heat , which states that the work done in raising one pound of water one degree in temperature on the Fahrenheit scale is equivalent to raising 772 pounds one foot high against the attraction of ...
... means of the mechanical equivalent of heat , which states that the work done in raising one pound of water one degree in temperature on the Fahrenheit scale is equivalent to raising 772 pounds one foot high against the attraction of ...
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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.