Beside the Domus Galilaeana on via Santa Maria, one of the most picturesque city streets, stands the house once inhabited by physicist Antonio Pacinotti, as recalled by a plaque walled on the facade in 1934. Pacinotti soon turned to the problems of electrophysics, dealing with measuring electric currents and dynamic generators of electricity, and even built a measuring instrument (the Pacinotti Ring), which he experimented in 1859. After a brilliant university and scientific career, in 1881 he succeeded his father on the chair of technological physics at the University of Pisa.