Antonio Pacinotti

Antonio Pacinotti (17 June 1841 – 24 March 1912) was an Italian physicist, who was Professor of Physics at the University of Pisa.

"Pacinotti" redirects here. For Gianni Pacinotti, see Gipi.
Antonio Pacinotti

Biography

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
Pacinotti-Gramme ring armature
Dynamo of Pacinotti

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.[1]

In July 1862, Pacinotti was one of several independent discoverers of the comet 109P/Swift-Tuttle.[2]

Lungarno Pacinotti, an embankment of the Arno River in Pisa, is named after him.[3]

gollark: > gollark the latex plugin broke my dokuwikiBroke how?
gollark: > The interpretation of any value was determined by the operators used to process the values. (For example, + added two values together, treating them as integers; ! indirected through a value, effectively treating it as a pointer.) In order for this to work, the implementation provided no type checking. Hungarian notation was developed to help programmers avoid inadvertent type errors.[citation needed] This is *just* like Sinth's idea of Unsafe.
gollark: > The language is unusual in having only one data type: a word, a fixed number of bits, usually chosen to align with the architecture's machine word and of adequate capacity to represent any valid storage address. For many machines of the time, this data type was a 16-bit word. This choice later proved to be a significant problem when BCPL was used on machines in which the smallest addressable item was not a word but a byte or on machines with larger word sizes such as 32-bit or 64-bit.[citation needed]
gollark: SOME people call it Basic Combined Programming Language.
gollark: Bee Control Programming Language is VERY cool!

References
  1. 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.
  2. Les Perséides en 2016
  3. LUNGARNO PACINOTTI
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.