PhysicsAppleton, 1878 - 149 páginas |
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Página 108
... touched the pith ball with excited glass , we communicated to it part of the electricity of the glass ; and as it was afterwards repelled by excited glass , we conclude that bodies charged with the same. 108 [ ELECTRIFIED SCIENCE PRIMERS .
... touched the pith ball with excited glass , we communicated to it part of the electricity of the glass ; and as it was afterwards repelled by excited glass , we conclude that bodies charged with the same. 108 [ ELECTRIFIED SCIENCE PRIMERS .
Página 109
... charged with excited glass , will be attracted to excited sealing - wax ; or if charged with excited sealing - wax , it will be at- tracted to excited glass , and hence we conclude that bodies charged with opposite kinds of elec ...
... charged with excited glass , will be attracted to excited sealing - wax ; or if charged with excited sealing - wax , it will be at- tracted to excited glass , and hence we conclude that bodies charged with opposite kinds of elec ...
Página 112
... charged with the same kind of electricity , begin to repel each other as you see in the figure . The electroscope is now in action . EXPERIMENT 56. - Having thus charged the electro- scope with positive electricity , let us bring near ...
... charged with the same kind of electricity , begin to repel each other as you see in the figure . The electroscope is now in action . EXPERIMENT 56. - Having thus charged the electro- scope with positive electricity , let us bring near ...
Página 113
... charged as before with positive elec- tricity , a stick of excited sealing - wax , we shall first find that the gold leaves will collapse instead of diverging . The reason is that the negative electricity of the excited sealing - wax ...
... charged as before with positive elec- tricity , a stick of excited sealing - wax , we shall first find that the gold leaves will collapse instead of diverging . The reason is that the negative electricity of the excited sealing - wax ...
Página 116
... charged with electricity , I place my finger near it , a spark passes between the con- ductor and my finger . The reason is that the positive electricity of the conductor separates the two elec- tricities which are together in my finger ...
... charged with electricity , I place my finger near it , a spark passes between the con- ductor and my finger . The reason is that the positive electricity of the conductor separates the two elec- tricities which are together in my finger ...
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acid air-pump attracted BALFOUR STEWART battery blow boiling-point bottom brass bright bulb bulk for bulk buoyancy burning-glass called cannon cold colours conductor convection copper cubic inches cylinder Describe an experiment E. A. FREEMAN earth elec electric machine electroscope excited glass excited sealing-wax expand experiment showing fact feet fill fire force gases Give an instance glass support grains gravity heated body hot body Illustrate your reply iron kinds of electricity knob latent heat lens Leyden jar liquid magnify means mercury metal mirror motion move needle nitric acid particles pass phosphorus piston pith ball plate platinum positive electricity pound weight pressure Price Primer prism ray of light rise rubbed scale-pan Sketch solid sound spark steam stoneware strikes substance sulphuric acid surface temperature thermometer thing told tricity tube valve vapour velocity vessel vibrating body weight wire zinc