Elementary lessons in electricity & magnetism (1895)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916 · New York and London, Macmillan and co. · leaf 44
cation of bodies into conductors and insulators hasbeen observed. This distinction cannot, however, be entirely main-tained, as a large class of substances occupy an inter-mediate ground as partial conductors. For example, drywood is a bad conductor and also a bad insulator ; itis a good enough…
Electricity
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