Luigi Galvani. Coloured engraving of Luigi Galvani (1737-1798), Italian physiologist. Galvani was born in Bologna, and studied at the university there, becoming a lecturer in anatomy in 1768, and a professor of obstetrics in 1782. His most famous discovery was animal electricity (galvanism). He found this by accident after noticing that dead frogs twitched on their iron drying frames, to which they were pinned with brass skewers. He then showed that frogs convulsed if they were made part of a circuit involving metals. He believed the electricity was generated in the frogs' muscles and nerves, but this was proved wrong by Volta in 1800, who showed the metals were responsible.

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