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Pacinotti was born in Pisa, where he also died. He was the son of Luigi Pacinotti and Caterina Catanti, attended the istituto arcivescovile Santa Caterina, and took part in the second war of Italian independence as sergente volontario. He was a student of Carlo Matteucci and graduated in mathematics at Pisa under Riccardo Felici. He was appointed as assistant to the astronomer Giovanni Battista Donati in 1862, professor at the technological institute of Bologna in 1864, professor of physics at the University of Cagliari in 1873, and, finally, successor to his father in 1881 in the chair of technological physics at the University of Pisa. Among his students was Augusto Righi.
Pacinotti died in Pisa.
Scientific studies and invention of the dynamo
He is best known for inventing an improved form of direct-current electrical generator, or dynamo, which he built in 1860 and described in a paper published in Il Nuovo Cimento of 1865. It used a ring armature around which was wrapped a coil of wire, to produce a smoother current than that available from previous types of dynamo. He found that the device could also be used as an electric motor.
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- Heinrich Schellen (1884) Magneto-electric and Dynamo-electric Machines, 3rd Ed., Vol.1, D. Van Nostrand, New York, p.218, fig.124, translated by Nathaniel S. Keith and Percy Neyman, on Google Books.
- Les Perséides en 2016
- LUNGARNO PACINOTTI