42 x 36.1 x 58 Wood, copper and brass
Delezenne disc
42 x 36.1 x 58 Wood, copper and brass
Faraday, Michael, Experimental Researches in Electricity, London, 1838, pp. 42-75.
Daguin, Pierre Adolphe, Traité Élémentaire de Physique Théorique et Expérimentale, Paris, 1878, Vol. III, n.º 2192.
Ganot, A., Traité Élémentaire de Physique, 19th edition, Paris, 1884, Fig. 894.