Lodge, Oliver, Sir, 1851-1940 · London, New York, Macmillan and co. · leaf 343
y mechanical models. Y 2 324 MODERN VIEWS OF ELECTRICITY, [lect. The model which represented a dielectric has alreadybeen depicted in Fig. 8 ; and when the cord thread-ing all the elastically supported balls is vibrated, wavestravel readily through it. The model which represented a metallic… … Fig. 54 —Rude model to pair with Fig. 8 (p. 43) and to call attenlion to some ofthe differences between a metal and an insulator. balls the waves penetrate a certain small depth intothe medium but fail to get through it. The two models were connected in series, and waveswhich had been transmitted…
Electricity
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