“The design of this Memoir is to deduce strictly from a few principles, obtained chiefly by experiment, the rationale of those electrical phenomena which are produced by the mutual contact of two or more bodies, and which have been termed galvanic; its aim is attained if by means of it the variety of facts be presented as unity to the mind.”

— Georg Ohm

Introductory sentence of [Georg Simon Ohm, The Galvanic Circuit Investigated Mathematically, translated by William Francis, D. Van Nostrand Co, 1891, 11]

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Georg Ohm 1

German physicist and mathematician 1789–1854

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Georg Ohm 1

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