Elementary lessons in electricity & magnetism (1895)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916 · New York and London, Macmillan and co. · leaf 89
o this branchof the science. It is knownthat skew-symmetry of struc-ture is dependent on molecularconstitution ; and it is doubt-less the same peculiarity whichdetermines the pyro-electricand piezo-electric properties,as well as the optical behaviourof these crystals in polarizedlight. 76. Animal… … Fig. 49. 82 ELECTRICITY AND MAGNETISM part i Silurus. The Raia Torpedo,* or electric ray, of whichthere are three species inhabiting the Mediterranean andAtlantic, is provided with an electric organ on the backof its head,as shown in Fig. 49. This organ consists oflaminae composed of polygonal…
Electricity
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