What is Electricity?D. Appleton and Company, 1903 - 315 pagini |
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Pagina 39
... walls of iron . A compass inside such a sphere would no longer be influenced by the poles of the earth . An examina- tion of the terminology of a subject often will show the trend of the subject . We speak to - day of the flow or flux ...
... walls of iron . A compass inside such a sphere would no longer be influenced by the poles of the earth . An examina- tion of the terminology of a subject often will show the trend of the subject . We speak to - day of the flow or flux ...
Pagina 46
... paper placed across a tube conveying compressed air would be instantly ruptured . It would take a wall of steel at least an inch thick to stand the pressure of steam which is driving a 10,000 - horse 46 WHAT IS ELECTRICITY ?
... paper placed across a tube conveying compressed air would be instantly ruptured . It would take a wall of steel at least an inch thick to stand the pressure of steam which is driving a 10,000 - horse 46 WHAT IS ELECTRICITY ?
Pagina 78
... furnace has been constructed with thermal junctions set in its walls , with the other set of junctions outside . It is possible , by having a large number of junctions in the pot of a furnace , to produce 78 WHAT IS ELECTRICITY ?
... furnace has been constructed with thermal junctions set in its walls , with the other set of junctions outside . It is possible , by having a large number of junctions in the pot of a furnace , to produce 78 WHAT IS ELECTRICITY ?
Pagina 87
... walls of which allow the fluid plasma to transude into the tissues so as to serve for their nutri- tion . " When Harvey explained his theory of the circula- tion of the blood to Charles I , the king must have re- garded the heart much ...
... walls of which allow the fluid plasma to transude into the tissues so as to serve for their nutri- tion . " When Harvey explained his theory of the circula- tion of the blood to Charles I , the king must have re- garded the heart much ...
Pagina 131
... an inch thick . No substance cuts off the lines of magnetic force ; they pass through wood , brick walls , copper , and all metals . They prefer to pass For into soft iron on their way from one pole 10 TRANSFORMATIONS OF ENERGY . 131.
... an inch thick . No substance cuts off the lines of magnetic force ; they pass through wood , brick walls , copper , and all metals . They prefer to pass For into soft iron on their way from one pole 10 TRANSFORMATIONS OF ENERGY . 131.
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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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